int, int, intel_clock_t *);
};
-#define I8XX_DOT_MIN 25000
-#define I8XX_DOT_MAX 350000
-#define I8XX_VCO_MIN 930000
-#define I8XX_VCO_MAX 1400000
-#define I8XX_N_MIN 3
-#define I8XX_N_MAX 16
-#define I8XX_M_MIN 96
-#define I8XX_M_MAX 140
-#define I8XX_M1_MIN 18
-#define I8XX_M1_MAX 26
-#define I8XX_M2_MIN 6
-#define I8XX_M2_MAX 16
-#define I8XX_P_MIN 4
-#define I8XX_P_MAX 128
-#define I8XX_P1_MIN 2
-#define I8XX_P1_MAX 33
-#define I8XX_P1_LVDS_MIN 1
-#define I8XX_P1_LVDS_MAX 6
-#define I8XX_P2_SLOW 4
-#define I8XX_P2_FAST 2
-#define I8XX_P2_LVDS_SLOW 14
-#define I8XX_P2_LVDS_FAST 7
-#define I8XX_P2_SLOW_LIMIT 165000
-
-#define I9XX_DOT_MIN 20000
-#define I9XX_DOT_MAX 400000
-#define I9XX_VCO_MIN 1400000
-#define I9XX_VCO_MAX 2800000
-#define PINEVIEW_VCO_MIN 1700000
-#define PINEVIEW_VCO_MAX 3500000
-#define I9XX_N_MIN 1
-#define I9XX_N_MAX 6
-/* Pineview's Ncounter is a ring counter */
-#define PINEVIEW_N_MIN 3
-#define PINEVIEW_N_MAX 6
-#define I9XX_M_MIN 70
-#define I9XX_M_MAX 120
-#define PINEVIEW_M_MIN 2
-#define PINEVIEW_M_MAX 256
-#define I9XX_M1_MIN 10
-#define I9XX_M1_MAX 22
-#define I9XX_M2_MIN 5
-#define I9XX_M2_MAX 9
-/* Pineview M1 is reserved, and must be 0 */
-#define PINEVIEW_M1_MIN 0
-#define PINEVIEW_M1_MAX 0
-#define PINEVIEW_M2_MIN 0
-#define PINEVIEW_M2_MAX 254
-#define I9XX_P_SDVO_DAC_MIN 5
-#define I9XX_P_SDVO_DAC_MAX 80
-#define I9XX_P_LVDS_MIN 7
-#define I9XX_P_LVDS_MAX 98
-#define PINEVIEW_P_LVDS_MIN 7
-#define PINEVIEW_P_LVDS_MAX 112
-#define I9XX_P1_MIN 1
-#define I9XX_P1_MAX 8
-#define I9XX_P2_SDVO_DAC_SLOW 10
-#define I9XX_P2_SDVO_DAC_FAST 5
-#define I9XX_P2_SDVO_DAC_SLOW_LIMIT 200000
-#define I9XX_P2_LVDS_SLOW 14
-#define I9XX_P2_LVDS_FAST 7
-#define I9XX_P2_LVDS_SLOW_LIMIT 112000
-
-/*The parameter is for SDVO on G4x platform*/
-#define G4X_DOT_SDVO_MIN 25000
-#define G4X_DOT_SDVO_MAX 270000
-#define G4X_VCO_MIN 1750000
-#define G4X_VCO_MAX 3500000
-#define G4X_N_SDVO_MIN 1
-#define G4X_N_SDVO_MAX 4
-#define G4X_M_SDVO_MIN 104
-#define G4X_M_SDVO_MAX 138
-#define G4X_M1_SDVO_MIN 17
-#define G4X_M1_SDVO_MAX 23
-#define G4X_M2_SDVO_MIN 5
-#define G4X_M2_SDVO_MAX 11
-#define G4X_P_SDVO_MIN 10
-#define G4X_P_SDVO_MAX 30
-#define G4X_P1_SDVO_MIN 1
-#define G4X_P1_SDVO_MAX 3
-#define G4X_P2_SDVO_SLOW 10
-#define G4X_P2_SDVO_FAST 10
-#define G4X_P2_SDVO_LIMIT 270000
-
-/*The parameter is for HDMI_DAC on G4x platform*/
-#define G4X_DOT_HDMI_DAC_MIN 22000
-#define G4X_DOT_HDMI_DAC_MAX 400000
-#define G4X_N_HDMI_DAC_MIN 1
-#define G4X_N_HDMI_DAC_MAX 4
-#define G4X_M_HDMI_DAC_MIN 104
-#define G4X_M_HDMI_DAC_MAX 138
-#define G4X_M1_HDMI_DAC_MIN 16
-#define G4X_M1_HDMI_DAC_MAX 23
-#define G4X_M2_HDMI_DAC_MIN 5
-#define G4X_M2_HDMI_DAC_MAX 11
-#define G4X_P_HDMI_DAC_MIN 5
-#define G4X_P_HDMI_DAC_MAX 80
-#define G4X_P1_HDMI_DAC_MIN 1
-#define G4X_P1_HDMI_DAC_MAX 8
-#define G4X_P2_HDMI_DAC_SLOW 10
-#define G4X_P2_HDMI_DAC_FAST 5
-#define G4X_P2_HDMI_DAC_LIMIT 165000
-
-/*The parameter is for SINGLE_CHANNEL_LVDS on G4x platform*/
-#define G4X_DOT_SINGLE_CHANNEL_LVDS_MIN 20000
-#define G4X_DOT_SINGLE_CHANNEL_LVDS_MAX 115000
-#define G4X_N_SINGLE_CHANNEL_LVDS_MIN 1
-#define G4X_N_SINGLE_CHANNEL_LVDS_MAX 3
-#define G4X_M_SINGLE_CHANNEL_LVDS_MIN 104
-#define G4X_M_SINGLE_CHANNEL_LVDS_MAX 138
-#define G4X_M1_SINGLE_CHANNEL_LVDS_MIN 17
-#define G4X_M1_SINGLE_CHANNEL_LVDS_MAX 23
-#define G4X_M2_SINGLE_CHANNEL_LVDS_MIN 5
-#define G4X_M2_SINGLE_CHANNEL_LVDS_MAX 11
-#define G4X_P_SINGLE_CHANNEL_LVDS_MIN 28
-#define G4X_P_SINGLE_CHANNEL_LVDS_MAX 112
-#define G4X_P1_SINGLE_CHANNEL_LVDS_MIN 2
-#define G4X_P1_SINGLE_CHANNEL_LVDS_MAX 8
-#define G4X_P2_SINGLE_CHANNEL_LVDS_SLOW 14
-#define G4X_P2_SINGLE_CHANNEL_LVDS_FAST 14
-#define G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT 0
-
-/*The parameter is for DUAL_CHANNEL_LVDS on G4x platform*/
-#define G4X_DOT_DUAL_CHANNEL_LVDS_MIN 80000
-#define G4X_DOT_DUAL_CHANNEL_LVDS_MAX 224000
-#define G4X_N_DUAL_CHANNEL_LVDS_MIN 1
-#define G4X_N_DUAL_CHANNEL_LVDS_MAX 3
-#define G4X_M_DUAL_CHANNEL_LVDS_MIN 104
-#define G4X_M_DUAL_CHANNEL_LVDS_MAX 138
-#define G4X_M1_DUAL_CHANNEL_LVDS_MIN 17
-#define G4X_M1_DUAL_CHANNEL_LVDS_MAX 23
-#define G4X_M2_DUAL_CHANNEL_LVDS_MIN 5
-#define G4X_M2_DUAL_CHANNEL_LVDS_MAX 11
-#define G4X_P_DUAL_CHANNEL_LVDS_MIN 14
-#define G4X_P_DUAL_CHANNEL_LVDS_MAX 42
-#define G4X_P1_DUAL_CHANNEL_LVDS_MIN 2
-#define G4X_P1_DUAL_CHANNEL_LVDS_MAX 6
-#define G4X_P2_DUAL_CHANNEL_LVDS_SLOW 7
-#define G4X_P2_DUAL_CHANNEL_LVDS_FAST 7
-#define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT 0
-
-/*The parameter is for DISPLAY PORT on G4x platform*/
-#define G4X_DOT_DISPLAY_PORT_MIN 161670
-#define G4X_DOT_DISPLAY_PORT_MAX 227000
-#define G4X_N_DISPLAY_PORT_MIN 1
-#define G4X_N_DISPLAY_PORT_MAX 2
-#define G4X_M_DISPLAY_PORT_MIN 97
-#define G4X_M_DISPLAY_PORT_MAX 108
-#define G4X_M1_DISPLAY_PORT_MIN 0x10
-#define G4X_M1_DISPLAY_PORT_MAX 0x12
-#define G4X_M2_DISPLAY_PORT_MIN 0x05
-#define G4X_M2_DISPLAY_PORT_MAX 0x06
-#define G4X_P_DISPLAY_PORT_MIN 10
-#define G4X_P_DISPLAY_PORT_MAX 20
-#define G4X_P1_DISPLAY_PORT_MIN 1
-#define G4X_P1_DISPLAY_PORT_MAX 2
-#define G4X_P2_DISPLAY_PORT_SLOW 10
-#define G4X_P2_DISPLAY_PORT_FAST 10
-#define G4X_P2_DISPLAY_PORT_LIMIT 0
-
-/* Ironlake / Sandybridge */
-/* as we calculate clock using (register_value + 2) for
- N/M1/M2, so here the range value for them is (actual_value-2).
- */
-#define IRONLAKE_DOT_MIN 25000
-#define IRONLAKE_DOT_MAX 350000
-#define IRONLAKE_VCO_MIN 1760000
-#define IRONLAKE_VCO_MAX 3510000
-#define IRONLAKE_M1_MIN 12
-#define IRONLAKE_M1_MAX 22
-#define IRONLAKE_M2_MIN 5
-#define IRONLAKE_M2_MAX 9
-#define IRONLAKE_P2_DOT_LIMIT 225000 /* 225Mhz */
-
-/* We have parameter ranges for different type of outputs. */
-
-/* DAC & HDMI Refclk 120Mhz */
-#define IRONLAKE_DAC_N_MIN 1
-#define IRONLAKE_DAC_N_MAX 5
-#define IRONLAKE_DAC_M_MIN 79
-#define IRONLAKE_DAC_M_MAX 127
-#define IRONLAKE_DAC_P_MIN 5
-#define IRONLAKE_DAC_P_MAX 80
-#define IRONLAKE_DAC_P1_MIN 1
-#define IRONLAKE_DAC_P1_MAX 8
-#define IRONLAKE_DAC_P2_SLOW 10
-#define IRONLAKE_DAC_P2_FAST 5
-
-/* LVDS single-channel 120Mhz refclk */
-#define IRONLAKE_LVDS_S_N_MIN 1
-#define IRONLAKE_LVDS_S_N_MAX 3
-#define IRONLAKE_LVDS_S_M_MIN 79
-#define IRONLAKE_LVDS_S_M_MAX 118
-#define IRONLAKE_LVDS_S_P_MIN 28
-#define IRONLAKE_LVDS_S_P_MAX 112
-#define IRONLAKE_LVDS_S_P1_MIN 2
-#define IRONLAKE_LVDS_S_P1_MAX 8
-#define IRONLAKE_LVDS_S_P2_SLOW 14
-#define IRONLAKE_LVDS_S_P2_FAST 14
-
-/* LVDS dual-channel 120Mhz refclk */
-#define IRONLAKE_LVDS_D_N_MIN 1
-#define IRONLAKE_LVDS_D_N_MAX 3
-#define IRONLAKE_LVDS_D_M_MIN 79
-#define IRONLAKE_LVDS_D_M_MAX 127
-#define IRONLAKE_LVDS_D_P_MIN 14
-#define IRONLAKE_LVDS_D_P_MAX 56
-#define IRONLAKE_LVDS_D_P1_MIN 2
-#define IRONLAKE_LVDS_D_P1_MAX 8
-#define IRONLAKE_LVDS_D_P2_SLOW 7
-#define IRONLAKE_LVDS_D_P2_FAST 7
-
-/* LVDS single-channel 100Mhz refclk */
-#define IRONLAKE_LVDS_S_SSC_N_MIN 1
-#define IRONLAKE_LVDS_S_SSC_N_MAX 2
-#define IRONLAKE_LVDS_S_SSC_M_MIN 79
-#define IRONLAKE_LVDS_S_SSC_M_MAX 126
-#define IRONLAKE_LVDS_S_SSC_P_MIN 28
-#define IRONLAKE_LVDS_S_SSC_P_MAX 112
-#define IRONLAKE_LVDS_S_SSC_P1_MIN 2
-#define IRONLAKE_LVDS_S_SSC_P1_MAX 8
-#define IRONLAKE_LVDS_S_SSC_P2_SLOW 14
-#define IRONLAKE_LVDS_S_SSC_P2_FAST 14
-
-/* LVDS dual-channel 100Mhz refclk */
-#define IRONLAKE_LVDS_D_SSC_N_MIN 1
-#define IRONLAKE_LVDS_D_SSC_N_MAX 3
-#define IRONLAKE_LVDS_D_SSC_M_MIN 79
-#define IRONLAKE_LVDS_D_SSC_M_MAX 126
-#define IRONLAKE_LVDS_D_SSC_P_MIN 14
-#define IRONLAKE_LVDS_D_SSC_P_MAX 42
-#define IRONLAKE_LVDS_D_SSC_P1_MIN 2
-#define IRONLAKE_LVDS_D_SSC_P1_MAX 6
-#define IRONLAKE_LVDS_D_SSC_P2_SLOW 7
-#define IRONLAKE_LVDS_D_SSC_P2_FAST 7
-
-/* DisplayPort */
-#define IRONLAKE_DP_N_MIN 1
-#define IRONLAKE_DP_N_MAX 2
-#define IRONLAKE_DP_M_MIN 81
-#define IRONLAKE_DP_M_MAX 90
-#define IRONLAKE_DP_P_MIN 10
-#define IRONLAKE_DP_P_MAX 20
-#define IRONLAKE_DP_P2_FAST 10
-#define IRONLAKE_DP_P2_SLOW 10
-#define IRONLAKE_DP_P2_LIMIT 0
-#define IRONLAKE_DP_P1_MIN 1
-#define IRONLAKE_DP_P1_MAX 2
-
/* FDI */
#define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
}
static const intel_limit_t intel_limits_i8xx_dvo = {
- .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX },
- .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX },
- .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX },
- .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX },
- .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX },
- .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX },
- .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX },
- .p1 = { .min = I8XX_P1_MIN, .max = I8XX_P1_MAX },
- .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT,
- .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 930000, .max = 1400000 },
+ .n = { .min = 3, .max = 16 },
+ .m = { .min = 96, .max = 140 },
+ .m1 = { .min = 18, .max = 26 },
+ .m2 = { .min = 6, .max = 16 },
+ .p = { .min = 4, .max = 128 },
+ .p1 = { .min = 2, .max = 33 },
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 4, .p2_fast = 2 },
.find_pll = intel_find_best_PLL,
};
static const intel_limit_t intel_limits_i8xx_lvds = {
- .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX },
- .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX },
- .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX },
- .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX },
- .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX },
- .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX },
- .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX },
- .p1 = { .min = I8XX_P1_LVDS_MIN, .max = I8XX_P1_LVDS_MAX },
- .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT,
- .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 930000, .max = 1400000 },
+ .n = { .min = 3, .max = 16 },
+ .m = { .min = 96, .max = 140 },
+ .m1 = { .min = 18, .max = 26 },
+ .m2 = { .min = 6, .max = 16 },
+ .p = { .min = 4, .max = 128 },
+ .p1 = { .min = 1, .max = 6 },
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 14, .p2_fast = 7 },
.find_pll = intel_find_best_PLL,
};
-
+
static const intel_limit_t intel_limits_i9xx_sdvo = {
- .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX },
- .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX },
- .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX },
- .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX },
- .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX },
- .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX },
- .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX },
- .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX },
- .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
- .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST },
+ .dot = { .min = 20000, .max = 400000 },
+ .vco = { .min = 1400000, .max = 2800000 },
+ .n = { .min = 1, .max = 6 },
+ .m = { .min = 70, .max = 120 },
+ .m1 = { .min = 10, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 200000,
+ .p2_slow = 10, .p2_fast = 5 },
.find_pll = intel_find_best_PLL,
};
static const intel_limit_t intel_limits_i9xx_lvds = {
- .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX },
- .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX },
- .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX },
- .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX },
- .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX },
- .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX },
- .p = { .min = I9XX_P_LVDS_MIN, .max = I9XX_P_LVDS_MAX },
- .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX },
- /* The single-channel range is 25-112Mhz, and dual-channel
- * is 80-224Mhz. Prefer single channel as much as possible.
- */
- .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
- .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST },
+ .dot = { .min = 20000, .max = 400000 },
+ .vco = { .min = 1400000, .max = 2800000 },
+ .n = { .min = 1, .max = 6 },
+ .m = { .min = 70, .max = 120 },
+ .m1 = { .min = 10, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 7, .max = 98 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 112000,
+ .p2_slow = 14, .p2_fast = 7 },
.find_pll = intel_find_best_PLL,
};
- /* below parameter and function is for G4X Chipset Family*/
+
static const intel_limit_t intel_limits_g4x_sdvo = {
- .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX },
- .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX},
- .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX },
- .m = { .min = G4X_M_SDVO_MIN, .max = G4X_M_SDVO_MAX },
- .m1 = { .min = G4X_M1_SDVO_MIN, .max = G4X_M1_SDVO_MAX },
- .m2 = { .min = G4X_M2_SDVO_MIN, .max = G4X_M2_SDVO_MAX },
- .p = { .min = G4X_P_SDVO_MIN, .max = G4X_P_SDVO_MAX },
- .p1 = { .min = G4X_P1_SDVO_MIN, .max = G4X_P1_SDVO_MAX},
- .p2 = { .dot_limit = G4X_P2_SDVO_LIMIT,
- .p2_slow = G4X_P2_SDVO_SLOW,
- .p2_fast = G4X_P2_SDVO_FAST
+ .dot = { .min = 25000, .max = 270000 },
+ .vco = { .min = 1750000, .max = 3500000},
+ .n = { .min = 1, .max = 4 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 17, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 10, .max = 30 },
+ .p1 = { .min = 1, .max = 3},
+ .p2 = { .dot_limit = 270000,
+ .p2_slow = 10,
+ .p2_fast = 10
},
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_g4x_hdmi = {
- .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX },
- .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX},
- .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX },
- .m = { .min = G4X_M_HDMI_DAC_MIN, .max = G4X_M_HDMI_DAC_MAX },
- .m1 = { .min = G4X_M1_HDMI_DAC_MIN, .max = G4X_M1_HDMI_DAC_MAX },
- .m2 = { .min = G4X_M2_HDMI_DAC_MIN, .max = G4X_M2_HDMI_DAC_MAX },
- .p = { .min = G4X_P_HDMI_DAC_MIN, .max = G4X_P_HDMI_DAC_MAX },
- .p1 = { .min = G4X_P1_HDMI_DAC_MIN, .max = G4X_P1_HDMI_DAC_MAX},
- .p2 = { .dot_limit = G4X_P2_HDMI_DAC_LIMIT,
- .p2_slow = G4X_P2_HDMI_DAC_SLOW,
- .p2_fast = G4X_P2_HDMI_DAC_FAST
- },
+ .dot = { .min = 22000, .max = 400000 },
+ .vco = { .min = 1750000, .max = 3500000},
+ .n = { .min = 1, .max = 4 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 16, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8},
+ .p2 = { .dot_limit = 165000,
+ .p2_slow = 10, .p2_fast = 5 },
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
- .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX },
- .vco = { .min = G4X_VCO_MIN,
- .max = G4X_VCO_MAX },
- .n = { .min = G4X_N_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_N_SINGLE_CHANNEL_LVDS_MAX },
- .m = { .min = G4X_M_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_M_SINGLE_CHANNEL_LVDS_MAX },
- .m1 = { .min = G4X_M1_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_M1_SINGLE_CHANNEL_LVDS_MAX },
- .m2 = { .min = G4X_M2_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_M2_SINGLE_CHANNEL_LVDS_MAX },
- .p = { .min = G4X_P_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_P_SINGLE_CHANNEL_LVDS_MAX },
- .p1 = { .min = G4X_P1_SINGLE_CHANNEL_LVDS_MIN,
- .max = G4X_P1_SINGLE_CHANNEL_LVDS_MAX },
- .p2 = { .dot_limit = G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT,
- .p2_slow = G4X_P2_SINGLE_CHANNEL_LVDS_SLOW,
- .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST
+ .dot = { .min = 20000, .max = 115000 },
+ .vco = { .min = 1750000, .max = 3500000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 17, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 28, .max = 112 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 0,
+ .p2_slow = 14, .p2_fast = 14
},
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
- .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX },
- .vco = { .min = G4X_VCO_MIN,
- .max = G4X_VCO_MAX },
- .n = { .min = G4X_N_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_N_DUAL_CHANNEL_LVDS_MAX },
- .m = { .min = G4X_M_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_M_DUAL_CHANNEL_LVDS_MAX },
- .m1 = { .min = G4X_M1_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_M1_DUAL_CHANNEL_LVDS_MAX },
- .m2 = { .min = G4X_M2_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_M2_DUAL_CHANNEL_LVDS_MAX },
- .p = { .min = G4X_P_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_P_DUAL_CHANNEL_LVDS_MAX },
- .p1 = { .min = G4X_P1_DUAL_CHANNEL_LVDS_MIN,
- .max = G4X_P1_DUAL_CHANNEL_LVDS_MAX },
- .p2 = { .dot_limit = G4X_P2_DUAL_CHANNEL_LVDS_LIMIT,
- .p2_slow = G4X_P2_DUAL_CHANNEL_LVDS_SLOW,
- .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST
+ .dot = { .min = 80000, .max = 224000 },
+ .vco = { .min = 1750000, .max = 3500000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 104, .max = 138 },
+ .m1 = { .min = 17, .max = 23 },
+ .m2 = { .min = 5, .max = 11 },
+ .p = { .min = 14, .max = 42 },
+ .p1 = { .min = 2, .max = 6 },
+ .p2 = { .dot_limit = 0,
+ .p2_slow = 7, .p2_fast = 7
},
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_g4x_display_port = {
- .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN,
- .max = G4X_DOT_DISPLAY_PORT_MAX },
- .vco = { .min = G4X_VCO_MIN,
- .max = G4X_VCO_MAX},
- .n = { .min = G4X_N_DISPLAY_PORT_MIN,
- .max = G4X_N_DISPLAY_PORT_MAX },
- .m = { .min = G4X_M_DISPLAY_PORT_MIN,
- .max = G4X_M_DISPLAY_PORT_MAX },
- .m1 = { .min = G4X_M1_DISPLAY_PORT_MIN,
- .max = G4X_M1_DISPLAY_PORT_MAX },
- .m2 = { .min = G4X_M2_DISPLAY_PORT_MIN,
- .max = G4X_M2_DISPLAY_PORT_MAX },
- .p = { .min = G4X_P_DISPLAY_PORT_MIN,
- .max = G4X_P_DISPLAY_PORT_MAX },
- .p1 = { .min = G4X_P1_DISPLAY_PORT_MIN,
- .max = G4X_P1_DISPLAY_PORT_MAX},
- .p2 = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT,
- .p2_slow = G4X_P2_DISPLAY_PORT_SLOW,
- .p2_fast = G4X_P2_DISPLAY_PORT_FAST },
+ .dot = { .min = 161670, .max = 227000 },
+ .vco = { .min = 1750000, .max = 3500000},
+ .n = { .min = 1, .max = 2 },
+ .m = { .min = 97, .max = 108 },
+ .m1 = { .min = 0x10, .max = 0x12 },
+ .m2 = { .min = 0x05, .max = 0x06 },
+ .p = { .min = 10, .max = 20 },
+ .p1 = { .min = 1, .max = 2},
+ .p2 = { .dot_limit = 0,
+ .p2_slow = 10, .p2_fast = 10 },
.find_pll = intel_find_pll_g4x_dp,
};
static const intel_limit_t intel_limits_pineview_sdvo = {
- .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX},
- .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX },
- .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX },
- .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX },
- .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX },
- .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX },
- .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX },
- .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX },
- .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
- .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST },
+ .dot = { .min = 20000, .max = 400000},
+ .vco = { .min = 1700000, .max = 3500000 },
+ /* Pineview's Ncounter is a ring counter */
+ .n = { .min = 3, .max = 6 },
+ .m = { .min = 2, .max = 256 },
+ /* Pineview only has one combined m divider, which we treat as m2. */
+ .m1 = { .min = 0, .max = 0 },
+ .m2 = { .min = 0, .max = 254 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 200000,
+ .p2_slow = 10, .p2_fast = 5 },
.find_pll = intel_find_best_PLL,
};
static const intel_limit_t intel_limits_pineview_lvds = {
- .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX },
- .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX },
- .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX },
- .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX },
- .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX },
- .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX },
- .p = { .min = PINEVIEW_P_LVDS_MIN, .max = PINEVIEW_P_LVDS_MAX },
- .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX },
- /* Pineview only supports single-channel mode. */
- .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
- .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW },
+ .dot = { .min = 20000, .max = 400000 },
+ .vco = { .min = 1700000, .max = 3500000 },
+ .n = { .min = 3, .max = 6 },
+ .m = { .min = 2, .max = 256 },
+ .m1 = { .min = 0, .max = 0 },
+ .m2 = { .min = 0, .max = 254 },
+ .p = { .min = 7, .max = 112 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 112000,
+ .p2_slow = 14, .p2_fast = 14 },
.find_pll = intel_find_best_PLL,
};
+/* Ironlake / Sandybridge
+ *
+ * We calculate clock using (register_value + 2) for N/M1/M2, so here
+ * the range value for them is (actual_value - 2).
+ */
static const intel_limit_t intel_limits_ironlake_dac = {
- .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX },
- .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX },
- .n = { .min = IRONLAKE_DAC_N_MIN, .max = IRONLAKE_DAC_N_MAX },
- .m = { .min = IRONLAKE_DAC_M_MIN, .max = IRONLAKE_DAC_M_MAX },
- .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX },
- .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX },
- .p = { .min = IRONLAKE_DAC_P_MIN, .max = IRONLAKE_DAC_P_MAX },
- .p1 = { .min = IRONLAKE_DAC_P1_MIN, .max = IRONLAKE_DAC_P1_MAX },
- .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT,
- .p2_slow = IRONLAKE_DAC_P2_SLOW,
- .p2_fast = IRONLAKE_DAC_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 5 },
+ .m = { .min = 79, .max = 127 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 5, .max = 80 },
+ .p1 = { .min = 1, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 10, .p2_fast = 5 },
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_ironlake_single_lvds = {
- .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX },
- .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX },
- .n = { .min = IRONLAKE_LVDS_S_N_MIN, .max = IRONLAKE_LVDS_S_N_MAX },
- .m = { .min = IRONLAKE_LVDS_S_M_MIN, .max = IRONLAKE_LVDS_S_M_MAX },
- .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX },
- .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX },
- .p = { .min = IRONLAKE_LVDS_S_P_MIN, .max = IRONLAKE_LVDS_S_P_MAX },
- .p1 = { .min = IRONLAKE_LVDS_S_P1_MIN, .max = IRONLAKE_LVDS_S_P1_MAX },
- .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT,
- .p2_slow = IRONLAKE_LVDS_S_P2_SLOW,
- .p2_fast = IRONLAKE_LVDS_S_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 79, .max = 118 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 28, .max = 112 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 14, .p2_fast = 14 },
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_ironlake_dual_lvds = {
- .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX },
- .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX },
- .n = { .min = IRONLAKE_LVDS_D_N_MIN, .max = IRONLAKE_LVDS_D_N_MAX },
- .m = { .min = IRONLAKE_LVDS_D_M_MIN, .max = IRONLAKE_LVDS_D_M_MAX },
- .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX },
- .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX },
- .p = { .min = IRONLAKE_LVDS_D_P_MIN, .max = IRONLAKE_LVDS_D_P_MAX },
- .p1 = { .min = IRONLAKE_LVDS_D_P1_MIN, .max = IRONLAKE_LVDS_D_P1_MAX },
- .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT,
- .p2_slow = IRONLAKE_LVDS_D_P2_SLOW,
- .p2_fast = IRONLAKE_LVDS_D_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 79, .max = 127 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 14, .max = 56 },
+ .p1 = { .min = 2, .max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 7, .p2_fast = 7 },
.find_pll = intel_g4x_find_best_PLL,
};
+/* LVDS 100mhz refclk limits. */
static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
- .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX },
- .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX },
- .n = { .min = IRONLAKE_LVDS_S_SSC_N_MIN, .max = IRONLAKE_LVDS_S_SSC_N_MAX },
- .m = { .min = IRONLAKE_LVDS_S_SSC_M_MIN, .max = IRONLAKE_LVDS_S_SSC_M_MAX },
- .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX },
- .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX },
- .p = { .min = IRONLAKE_LVDS_S_SSC_P_MIN, .max = IRONLAKE_LVDS_S_SSC_P_MAX },
- .p1 = { .min = IRONLAKE_LVDS_S_SSC_P1_MIN,.max = IRONLAKE_LVDS_S_SSC_P1_MAX },
- .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT,
- .p2_slow = IRONLAKE_LVDS_S_SSC_P2_SLOW,
- .p2_fast = IRONLAKE_LVDS_S_SSC_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 2 },
+ .m = { .min = 79, .max = 126 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 28, .max = 112 },
+ .p1 = { .min = 2,.max = 8 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 14, .p2_fast = 14 },
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
- .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX },
- .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX },
- .n = { .min = IRONLAKE_LVDS_D_SSC_N_MIN, .max = IRONLAKE_LVDS_D_SSC_N_MAX },
- .m = { .min = IRONLAKE_LVDS_D_SSC_M_MIN, .max = IRONLAKE_LVDS_D_SSC_M_MAX },
- .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX },
- .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX },
- .p = { .min = IRONLAKE_LVDS_D_SSC_P_MIN, .max = IRONLAKE_LVDS_D_SSC_P_MAX },
- .p1 = { .min = IRONLAKE_LVDS_D_SSC_P1_MIN,.max = IRONLAKE_LVDS_D_SSC_P1_MAX },
- .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT,
- .p2_slow = IRONLAKE_LVDS_D_SSC_P2_SLOW,
- .p2_fast = IRONLAKE_LVDS_D_SSC_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000 },
+ .n = { .min = 1, .max = 3 },
+ .m = { .min = 79, .max = 126 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 14, .max = 42 },
+ .p1 = { .min = 2,.max = 6 },
+ .p2 = { .dot_limit = 225000,
+ .p2_slow = 7, .p2_fast = 7 },
.find_pll = intel_g4x_find_best_PLL,
};
static const intel_limit_t intel_limits_ironlake_display_port = {
- .dot = { .min = IRONLAKE_DOT_MIN,
- .max = IRONLAKE_DOT_MAX },
- .vco = { .min = IRONLAKE_VCO_MIN,
- .max = IRONLAKE_VCO_MAX},
- .n = { .min = IRONLAKE_DP_N_MIN,
- .max = IRONLAKE_DP_N_MAX },
- .m = { .min = IRONLAKE_DP_M_MIN,
- .max = IRONLAKE_DP_M_MAX },
- .m1 = { .min = IRONLAKE_M1_MIN,
- .max = IRONLAKE_M1_MAX },
- .m2 = { .min = IRONLAKE_M2_MIN,
- .max = IRONLAKE_M2_MAX },
- .p = { .min = IRONLAKE_DP_P_MIN,
- .max = IRONLAKE_DP_P_MAX },
- .p1 = { .min = IRONLAKE_DP_P1_MIN,
- .max = IRONLAKE_DP_P1_MAX},
- .p2 = { .dot_limit = IRONLAKE_DP_P2_LIMIT,
- .p2_slow = IRONLAKE_DP_P2_SLOW,
- .p2_fast = IRONLAKE_DP_P2_FAST },
+ .dot = { .min = 25000, .max = 350000 },
+ .vco = { .min = 1760000, .max = 3510000},
+ .n = { .min = 1, .max = 2 },
+ .m = { .min = 81, .max = 90 },
+ .m1 = { .min = 12, .max = 22 },
+ .m2 = { .min = 5, .max = 9 },
+ .p = { .min = 10, .max = 20 },
+ .p1 = { .min = 1, .max = 2},
+ .p2 = { .dot_limit = 0,
+ .p2_slow = 10, .p2_fast = 10 },
.find_pll = intel_find_pll_ironlake_dp,
};
void intel_wait_for_vblank(struct drm_device *dev, int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- int pipestat_reg = (pipe == 0 ? PIPEASTAT : PIPEBSTAT);
+ int pipestat_reg = PIPESTAT(pipe);
/* Clear existing vblank status. Note this will clear any other
* sticky status fields as well.
}
}
-static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static const char *state_string(bool enabled)
{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_framebuffer *fb = crtc->fb;
- struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_i915_gem_object *obj = intel_fb->obj;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int plane, i;
- u32 fbc_ctl, fbc_ctl2;
-
- if (fb->pitch == dev_priv->cfb_pitch &&
- obj->fence_reg == dev_priv->cfb_fence &&
- intel_crtc->plane == dev_priv->cfb_plane &&
- I915_READ(FBC_CONTROL) & FBC_CTL_EN)
- return;
-
- i8xx_disable_fbc(dev);
-
- dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE;
+ return enabled ? "on" : "off";
+}
- if (fb->pitch < dev_priv->cfb_pitch)
- dev_priv->cfb_pitch = fb->pitch;
+/* Only for pre-ILK configs */
+static void assert_pll(struct drm_i915_private *dev_priv,
+ enum pipe pipe, bool state)
+{
+ int reg;
+ u32 val;
+ bool cur_state;
- /* FBC_CTL wants 64B units */
- dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
- dev_priv->cfb_fence = obj->fence_reg;
- dev_priv->cfb_plane = intel_crtc->plane;
- plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB;
+ reg = DPLL(pipe);
+ val = I915_READ(reg);
+ cur_state = !!(val & DPLL_VCO_ENABLE);
+ WARN(cur_state != state,
+ "PLL state assertion failure (expected %s, current %s)\n",
+ state_string(state), state_string(cur_state));
+}
+#define assert_pll_enabled(d, p) assert_pll(d, p, true)
+#define assert_pll_disabled(d, p) assert_pll(d, p, false)
- /* Clear old tags */
- for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++)
- I915_WRITE(FBC_TAG + (i * 4), 0);
+/* For ILK+ */
+static void assert_pch_pll(struct drm_i915_private *dev_priv,
+ enum pipe pipe, bool state)
+{
+ int reg;
+ u32 val;
+ bool cur_state;
- /* Set it up... */
- fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane;
- if (obj->tiling_mode != I915_TILING_NONE)
- fbc_ctl2 |= FBC_CTL_CPU_FENCE;
- I915_WRITE(FBC_CONTROL2, fbc_ctl2);
- I915_WRITE(FBC_FENCE_OFF, crtc->y);
+ reg = PCH_DPLL(pipe);
+ val = I915_READ(reg);
+ cur_state = !!(val & DPLL_VCO_ENABLE);
+ WARN(cur_state != state,
+ "PCH PLL state assertion failure (expected %s, current %s)\n",
+ state_string(state), state_string(cur_state));
+}
+#define assert_pch_pll_enabled(d, p) assert_pch_pll(d, p, true)
+#define assert_pch_pll_disabled(d, p) assert_pch_pll(d, p, false)
- /* enable it... */
- fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC;
- if (IS_I945GM(dev))
- fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */
- fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;
- fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT;
- if (obj->tiling_mode != I915_TILING_NONE)
- fbc_ctl |= dev_priv->cfb_fence;
- I915_WRITE(FBC_CONTROL, fbc_ctl);
+static void assert_fdi_tx(struct drm_i915_private *dev_priv,
+ enum pipe pipe, bool state)
+{
+ int reg;
+ u32 val;
+ bool cur_state;
- DRM_DEBUG_KMS("enabled FBC, pitch %ld, yoff %d, plane %d, ",
- dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane);
+ reg = FDI_TX_CTL(pipe);
+ val = I915_READ(reg);
+ cur_state = !!(val & FDI_TX_ENABLE);
+ WARN(cur_state != state,
+ "FDI TX state assertion failure (expected %s, current %s)\n",
+ state_string(state), state_string(cur_state));
}
+#define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
+#define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
-void i8xx_disable_fbc(struct drm_device *dev)
+static void assert_fdi_rx(struct drm_i915_private *dev_priv,
+ enum pipe pipe, bool state)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 fbc_ctl;
+ int reg;
+ u32 val;
+ bool cur_state;
- /* Disable compression */
- fbc_ctl = I915_READ(FBC_CONTROL);
- if ((fbc_ctl & FBC_CTL_EN) == 0)
- return;
+ reg = FDI_RX_CTL(pipe);
+ val = I915_READ(reg);
+ cur_state = !!(val & FDI_RX_ENABLE);
+ WARN(cur_state != state,
+ "FDI RX state assertion failure (expected %s, current %s)\n",
+ state_string(state), state_string(cur_state));
+}
+#define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
+#define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
- fbc_ctl &= ~FBC_CTL_EN;
- I915_WRITE(FBC_CONTROL, fbc_ctl);
+static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ int reg;
+ u32 val;
- /* Wait for compressing bit to clear */
- if (wait_for((I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) == 0, 10)) {
- DRM_DEBUG_KMS("FBC idle timed out\n");
+ /* ILK FDI PLL is always enabled */
+ if (dev_priv->info->gen == 5)
return;
- }
- DRM_DEBUG_KMS("disabled FBC\n");
+ reg = FDI_TX_CTL(pipe);
+ val = I915_READ(reg);
+ WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
}
-static bool i8xx_fbc_enabled(struct drm_device *dev)
+static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ int reg;
+ u32 val;
- return I915_READ(FBC_CONTROL) & FBC_CTL_EN;
+ reg = FDI_RX_CTL(pipe);
+ val = I915_READ(reg);
+ WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n");
}
-static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_framebuffer *fb = crtc->fb;
- struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_i915_gem_object *obj = intel_fb->obj;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB;
- unsigned long stall_watermark = 200;
- u32 dpfc_ctl;
-
- dpfc_ctl = I915_READ(DPFC_CONTROL);
- if (dpfc_ctl & DPFC_CTL_EN) {
- if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 &&
- dev_priv->cfb_fence == obj->fence_reg &&
- dev_priv->cfb_plane == intel_crtc->plane &&
- dev_priv->cfb_y == crtc->y)
- return;
-
- I915_WRITE(DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN);
- POSTING_READ(DPFC_CONTROL);
- intel_wait_for_vblank(dev, intel_crtc->pipe);
- }
-
- dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
- dev_priv->cfb_fence = obj->fence_reg;
- dev_priv->cfb_plane = intel_crtc->plane;
- dev_priv->cfb_y = crtc->y;
+ int pp_reg, lvds_reg;
+ u32 val;
+ enum pipe panel_pipe = PIPE_A;
+ bool locked = locked;
- dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X;
- if (obj->tiling_mode != I915_TILING_NONE) {
- dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence;
- I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY);
+ if (HAS_PCH_SPLIT(dev_priv->dev)) {
+ pp_reg = PCH_PP_CONTROL;
+ lvds_reg = PCH_LVDS;
} else {
- I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY);
+ pp_reg = PP_CONTROL;
+ lvds_reg = LVDS;
}
- I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
- (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
- (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
- I915_WRITE(DPFC_FENCE_YOFF, crtc->y);
+ val = I915_READ(pp_reg);
+ if (!(val & PANEL_POWER_ON) ||
+ ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
+ locked = false;
- /* enable it... */
- I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN);
+ if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
+ panel_pipe = PIPE_B;
- DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
+ WARN(panel_pipe == pipe && locked,
+ "panel assertion failure, pipe %c regs locked\n",
+ pipe_name(pipe));
}
-void g4x_disable_fbc(struct drm_device *dev)
+static void assert_pipe(struct drm_i915_private *dev_priv,
+ enum pipe pipe, bool state)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 dpfc_ctl;
-
- /* Disable compression */
- dpfc_ctl = I915_READ(DPFC_CONTROL);
- if (dpfc_ctl & DPFC_CTL_EN) {
- dpfc_ctl &= ~DPFC_CTL_EN;
- I915_WRITE(DPFC_CONTROL, dpfc_ctl);
+ int reg;
+ u32 val;
+ bool cur_state;
- DRM_DEBUG_KMS("disabled FBC\n");
- }
+ reg = PIPECONF(pipe);
+ val = I915_READ(reg);
+ cur_state = !!(val & PIPECONF_ENABLE);
+ WARN(cur_state != state,
+ "pipe %c assertion failure (expected %s, current %s)\n",
+ pipe_name(pipe), state_string(state), state_string(cur_state));
}
+#define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
+#define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
-static bool g4x_fbc_enabled(struct drm_device *dev)
+static void assert_plane_enabled(struct drm_i915_private *dev_priv,
+ enum plane plane)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ int reg;
+ u32 val;
- return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN;
+ reg = DSPCNTR(plane);
+ val = I915_READ(reg);
+ WARN(!(val & DISPLAY_PLANE_ENABLE),
+ "plane %c assertion failure, should be active but is disabled\n",
+ plane_name(plane));
}
-static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void assert_planes_disabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_framebuffer *fb = crtc->fb;
- struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_i915_gem_object *obj = intel_fb->obj;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB;
- unsigned long stall_watermark = 200;
- u32 dpfc_ctl;
-
- dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
- if (dpfc_ctl & DPFC_CTL_EN) {
- if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 &&
- dev_priv->cfb_fence == obj->fence_reg &&
- dev_priv->cfb_plane == intel_crtc->plane &&
- dev_priv->cfb_offset == obj->gtt_offset &&
- dev_priv->cfb_y == crtc->y)
- return;
-
- I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN);
- POSTING_READ(ILK_DPFC_CONTROL);
- intel_wait_for_vblank(dev, intel_crtc->pipe);
- }
+ int reg, i;
+ u32 val;
+ int cur_pipe;
- dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
- dev_priv->cfb_fence = obj->fence_reg;
- dev_priv->cfb_plane = intel_crtc->plane;
- dev_priv->cfb_offset = obj->gtt_offset;
- dev_priv->cfb_y = crtc->y;
+ /* Planes are fixed to pipes on ILK+ */
+ if (HAS_PCH_SPLIT(dev_priv->dev))
+ return;
- dpfc_ctl &= DPFC_RESERVED;
- dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X);
- if (obj->tiling_mode != I915_TILING_NONE) {
- dpfc_ctl |= (DPFC_CTL_FENCE_EN | dev_priv->cfb_fence);
- I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY);
- } else {
- I915_WRITE(ILK_DPFC_CHICKEN, ~DPFC_HT_MODIFY);
+ /* Need to check both planes against the pipe */
+ for (i = 0; i < 2; i++) {
+ reg = DSPCNTR(i);
+ val = I915_READ(reg);
+ cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
+ DISPPLANE_SEL_PIPE_SHIFT;
+ WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
+ "plane %c assertion failure, should be off on pipe %c but is still active\n",
+ plane_name(i), pipe_name(pipe));
}
+}
- I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
- (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
- (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
- I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y);
- I915_WRITE(ILK_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID);
- /* enable it... */
- I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);
-
- if (IS_GEN6(dev)) {
- I915_WRITE(SNB_DPFC_CTL_SA,
- SNB_CPU_FENCE_ENABLE | dev_priv->cfb_fence);
- I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y);
- }
+static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
+{
+ u32 val;
+ bool enabled;
- DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
+ val = I915_READ(PCH_DREF_CONTROL);
+ enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
+ DREF_SUPERSPREAD_SOURCE_MASK));
+ WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
}
-void ironlake_disable_fbc(struct drm_device *dev)
+static void assert_transcoder_disabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 dpfc_ctl;
-
- /* Disable compression */
- dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
- if (dpfc_ctl & DPFC_CTL_EN) {
- dpfc_ctl &= ~DPFC_CTL_EN;
- I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);
+ int reg;
+ u32 val;
+ bool enabled;
- DRM_DEBUG_KMS("disabled FBC\n");
- }
+ reg = TRANSCONF(pipe);
+ val = I915_READ(reg);
+ enabled = !!(val & TRANS_ENABLE);
+ WARN(enabled,
+ "transcoder assertion failed, should be off on pipe %c but is still active\n",
+ pipe_name(pipe));
}
-static bool ironlake_fbc_enabled(struct drm_device *dev)
+static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe, int reg)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 val = I915_READ(reg);
+ WARN(DP_PIPE_ENABLED(val, pipe),
+ "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
+ reg, pipe_name(pipe));
+}
- return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN;
+static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe, int reg)
+{
+ u32 val = I915_READ(reg);
+ WARN(HDMI_PIPE_ENABLED(val, pipe),
+ "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
+ reg, pipe_name(pipe));
}
-bool intel_fbc_enabled(struct drm_device *dev)
+static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ int reg;
+ u32 val;
- if (!dev_priv->display.fbc_enabled)
- return false;
+ assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B);
+ assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C);
+ assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D);
- return dev_priv->display.fbc_enabled(dev);
+ reg = PCH_ADPA;
+ val = I915_READ(reg);
+ WARN(ADPA_PIPE_ENABLED(val, pipe),
+ "PCH VGA enabled on transcoder %c, should be disabled\n",
+ pipe_name(pipe));
+
+ reg = PCH_LVDS;
+ val = I915_READ(reg);
+ WARN(LVDS_PIPE_ENABLED(val, pipe),
+ "PCH LVDS enabled on transcoder %c, should be disabled\n",
+ pipe_name(pipe));
+
+ assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB);
+ assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC);
+ assert_pch_hdmi_disabled(dev_priv, pipe, HDMID);
}
-void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+/**
+ * intel_enable_pll - enable a PLL
+ * @dev_priv: i915 private structure
+ * @pipe: pipe PLL to enable
+ *
+ * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
+ * make sure the PLL reg is writable first though, since the panel write
+ * protect mechanism may be enabled.
+ *
+ * Note! This is for pre-ILK only.
+ */
+static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
{
- struct drm_i915_private *dev_priv = crtc->dev->dev_private;
+ int reg;
+ u32 val;
- if (!dev_priv->display.enable_fbc)
- return;
+ /* No really, not for ILK+ */
+ BUG_ON(dev_priv->info->gen >= 5);
- dev_priv->display.enable_fbc(crtc, interval);
+ /* PLL is protected by panel, make sure we can write it */
+ if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
+ assert_panel_unlocked(dev_priv, pipe);
+
+ reg = DPLL(pipe);
+ val = I915_READ(reg);
+ val |= DPLL_VCO_ENABLE;
+
+ /* We do this three times for luck */
+ I915_WRITE(reg, val);
+ POSTING_READ(reg);
+ udelay(150); /* wait for warmup */
+ I915_WRITE(reg, val);
+ POSTING_READ(reg);
+ udelay(150); /* wait for warmup */
+ I915_WRITE(reg, val);
+ POSTING_READ(reg);
+ udelay(150); /* wait for warmup */
}
-void intel_disable_fbc(struct drm_device *dev)
+/**
+ * intel_disable_pll - disable a PLL
+ * @dev_priv: i915 private structure
+ * @pipe: pipe PLL to disable
+ *
+ * Disable the PLL for @pipe, making sure the pipe is off first.
+ *
+ * Note! This is for pre-ILK only.
+ */
+static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ int reg;
+ u32 val;
- if (!dev_priv->display.disable_fbc)
+ /* Don't disable pipe A or pipe A PLLs if needed */
+ if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
return;
- dev_priv->display.disable_fbc(dev);
-}
+ /* Make sure the pipe isn't still relying on us */
+ assert_pipe_disabled(dev_priv, pipe);
+
+ reg = DPLL(pipe);
+ val = I915_READ(reg);
+ val &= ~DPLL_VCO_ENABLE;
+ I915_WRITE(reg, val);
+ POSTING_READ(reg);
+}
/**
- * intel_update_fbc - enable/disable FBC as needed
- * @dev: the drm_device
- *
- * Set up the framebuffer compression hardware at mode set time. We
- * enable it if possible:
- * - plane A only (on pre-965)
- * - no pixel mulitply/line duplication
- * - no alpha buffer discard
- * - no dual wide
- * - framebuffer <= 2048 in width, 1536 in height
- *
- * We can't assume that any compression will take place (worst case),
- * so the compressed buffer has to be the same size as the uncompressed
- * one. It also must reside (along with the line length buffer) in
- * stolen memory.
+ * intel_enable_pch_pll - enable PCH PLL
+ * @dev_priv: i915 private structure
+ * @pipe: pipe PLL to enable
*
- * We need to enable/disable FBC on a global basis.
+ * The PCH PLL needs to be enabled before the PCH transcoder, since it
+ * drives the transcoder clock.
*/
-static void intel_update_fbc(struct drm_device *dev)
+static void intel_enable_pch_pll(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_crtc *crtc = NULL, *tmp_crtc;
- struct intel_crtc *intel_crtc;
- struct drm_framebuffer *fb;
- struct intel_framebuffer *intel_fb;
- struct drm_i915_gem_object *obj;
+ int reg;
+ u32 val;
- DRM_DEBUG_KMS("\n");
+ /* PCH only available on ILK+ */
+ BUG_ON(dev_priv->info->gen < 5);
- if (!i915_powersave)
- return;
+ /* PCH refclock must be enabled first */
+ assert_pch_refclk_enabled(dev_priv);
- if (!I915_HAS_FBC(dev))
- return;
+ reg = PCH_DPLL(pipe);
+ val = I915_READ(reg);
+ val |= DPLL_VCO_ENABLE;
+ I915_WRITE(reg, val);
+ POSTING_READ(reg);
+ udelay(200);
+}
- /*
- * If FBC is already on, we just have to verify that we can
- * keep it that way...
- * Need to disable if:
- * - more than one pipe is active
- * - changing FBC params (stride, fence, mode)
- * - new fb is too large to fit in compressed buffer
- * - going to an unsupported config (interlace, pixel multiply, etc.)
- */
- list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) {
- if (tmp_crtc->enabled) {
- if (crtc) {
- DRM_DEBUG_KMS("more than one pipe active, disabling compression\n");
- dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES;
- goto out_disable;
- }
- crtc = tmp_crtc;
- }
- }
+static void intel_disable_pch_pll(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ int reg;
+ u32 val;
- if (!crtc || crtc->fb == NULL) {
- DRM_DEBUG_KMS("no output, disabling\n");
- dev_priv->no_fbc_reason = FBC_NO_OUTPUT;
- goto out_disable;
- }
+ /* PCH only available on ILK+ */
+ BUG_ON(dev_priv->info->gen < 5);
- intel_crtc = to_intel_crtc(crtc);
- fb = crtc->fb;
- intel_fb = to_intel_framebuffer(fb);
- obj = intel_fb->obj;
+ /* Make sure transcoder isn't still depending on us */
+ assert_transcoder_disabled(dev_priv, pipe);
- if (intel_fb->obj->base.size > dev_priv->cfb_size) {
- DRM_DEBUG_KMS("framebuffer too large, disabling "
- "compression\n");
- dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
- goto out_disable;
- }
- if ((crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) ||
- (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)) {
- DRM_DEBUG_KMS("mode incompatible with compression, "
- "disabling\n");
- dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE;
- goto out_disable;
- }
- if ((crtc->mode.hdisplay > 2048) ||
- (crtc->mode.vdisplay > 1536)) {
- DRM_DEBUG_KMS("mode too large for compression, disabling\n");
- dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE;
- goto out_disable;
- }
- if ((IS_I915GM(dev) || IS_I945GM(dev)) && intel_crtc->plane != 0) {
- DRM_DEBUG_KMS("plane not 0, disabling compression\n");
- dev_priv->no_fbc_reason = FBC_BAD_PLANE;
- goto out_disable;
- }
- if (obj->tiling_mode != I915_TILING_X) {
- DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n");
- dev_priv->no_fbc_reason = FBC_NOT_TILED;
- goto out_disable;
- }
+ reg = PCH_DPLL(pipe);
+ val = I915_READ(reg);
+ val &= ~DPLL_VCO_ENABLE;
+ I915_WRITE(reg, val);
+ POSTING_READ(reg);
+ udelay(200);
+}
- /* If the kernel debugger is active, always disable compression */
- if (in_dbg_master())
- goto out_disable;
+static void intel_enable_transcoder(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ int reg;
+ u32 val;
- intel_enable_fbc(crtc, 500);
- return;
+ /* PCH only available on ILK+ */
+ BUG_ON(dev_priv->info->gen < 5);
-out_disable:
- /* Multiple disables should be harmless */
- if (intel_fbc_enabled(dev)) {
- DRM_DEBUG_KMS("unsupported config, disabling FBC\n");
- intel_disable_fbc(dev);
- }
+ /* Make sure PCH DPLL is enabled */
+ assert_pch_pll_enabled(dev_priv, pipe);
+
+ /* FDI must be feeding us bits for PCH ports */
+ assert_fdi_tx_enabled(dev_priv, pipe);
+ assert_fdi_rx_enabled(dev_priv, pipe);
+
+ reg = TRANSCONF(pipe);
+ val = I915_READ(reg);
+ /*
+ * make the BPC in transcoder be consistent with
+ * that in pipeconf reg.
+ */
+ val &= ~PIPE_BPC_MASK;
+ val |= I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK;
+ I915_WRITE(reg, val | TRANS_ENABLE);
+ if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
+ DRM_ERROR("failed to enable transcoder %d\n", pipe);
}
-int
-intel_pin_and_fence_fb_obj(struct drm_device *dev,
- struct drm_i915_gem_object *obj,
- struct intel_ring_buffer *pipelined)
+static void intel_disable_transcoder(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- u32 alignment;
- int ret;
+ int reg;
+ u32 val;
- switch (obj->tiling_mode) {
- case I915_TILING_NONE:
- if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
- alignment = 128 * 1024;
- else if (INTEL_INFO(dev)->gen >= 4)
- alignment = 4 * 1024;
- else
- alignment = 64 * 1024;
- break;
- case I915_TILING_X:
- /* pin() will align the object as required by fence */
- alignment = 0;
- break;
- case I915_TILING_Y:
- /* FIXME: Is this true? */
- DRM_ERROR("Y tiled not allowed for scan out buffers\n");
- return -EINVAL;
- default:
- BUG();
- }
+ /* FDI relies on the transcoder */
+ assert_fdi_tx_disabled(dev_priv, pipe);
+ assert_fdi_rx_disabled(dev_priv, pipe);
- ret = i915_gem_object_pin(obj, alignment, true);
- if (ret)
- return ret;
+ /* Ports must be off as well */
+ assert_pch_ports_disabled(dev_priv, pipe);
- ret = i915_gem_object_set_to_display_plane(obj, pipelined);
- if (ret)
- goto err_unpin;
+ reg = TRANSCONF(pipe);
+ val = I915_READ(reg);
+ val &= ~TRANS_ENABLE;
+ I915_WRITE(reg, val);
+ /* wait for PCH transcoder off, transcoder state */
+ if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
+ DRM_ERROR("failed to disable transcoder\n");
+}
- /* Install a fence for tiled scan-out. Pre-i965 always needs a
- * fence, whereas 965+ only requires a fence if using
- * framebuffer compression. For simplicity, we always install
- * a fence as the cost is not that onerous.
+/**
+ * intel_enable_pipe - enable a pipe, asserting requirements
+ * @dev_priv: i915 private structure
+ * @pipe: pipe to enable
+ * @pch_port: on ILK+, is this pipe driving a PCH port or not
+ *
+ * Enable @pipe, making sure that various hardware specific requirements
+ * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
+ *
+ * @pipe should be %PIPE_A or %PIPE_B.
+ *
+ * Will wait until the pipe is actually running (i.e. first vblank) before
+ * returning.
+ */
+static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
+ bool pch_port)
+{
+ int reg;
+ u32 val;
+
+ /*
+ * A pipe without a PLL won't actually be able to drive bits from
+ * a plane. On ILK+ the pipe PLLs are integrated, so we don't
+ * need the check.
*/
- if (obj->tiling_mode != I915_TILING_NONE) {
- ret = i915_gem_object_get_fence(obj, pipelined, false);
- if (ret)
- goto err_unpin;
+ if (!HAS_PCH_SPLIT(dev_priv->dev))
+ assert_pll_enabled(dev_priv, pipe);
+ else {
+ if (pch_port) {
+ /* if driving the PCH, we need FDI enabled */
+ assert_fdi_rx_pll_enabled(dev_priv, pipe);
+ assert_fdi_tx_pll_enabled(dev_priv, pipe);
+ }
+ /* FIXME: assert CPU port conditions for SNB+ */
}
- return 0;
+ reg = PIPECONF(pipe);
+ val = I915_READ(reg);
+ if (val & PIPECONF_ENABLE)
+ return;
-err_unpin:
- i915_gem_object_unpin(obj);
- return ret;
+ I915_WRITE(reg, val | PIPECONF_ENABLE);
+ intel_wait_for_vblank(dev_priv->dev, pipe);
}
-/* Assume fb object is pinned & idle & fenced and just update base pointers */
-static int
-intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
- int x, int y, enum mode_set_atomic state)
+/**
+ * intel_disable_pipe - disable a pipe, asserting requirements
+ * @dev_priv: i915 private structure
+ * @pipe: pipe to disable
+ *
+ * Disable @pipe, making sure that various hardware specific requirements
+ * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
+ *
+ * @pipe should be %PIPE_A or %PIPE_B.
+ *
+ * Will wait until the pipe has shut down before returning.
+ */
+static void intel_disable_pipe(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_framebuffer *intel_fb;
- struct drm_i915_gem_object *obj;
- int plane = intel_crtc->plane;
- unsigned long Start, Offset;
- u32 dspcntr;
- u32 reg;
+ int reg;
+ u32 val;
- switch (plane) {
- case 0:
- case 1:
- break;
- default:
- DRM_ERROR("Can't update plane %d in SAREA\n", plane);
- return -EINVAL;
- }
+ /*
+ * Make sure planes won't keep trying to pump pixels to us,
+ * or we might hang the display.
+ */
+ assert_planes_disabled(dev_priv, pipe);
- intel_fb = to_intel_framebuffer(fb);
- obj = intel_fb->obj;
+ /* Don't disable pipe A or pipe A PLLs if needed */
+ if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
+ return;
- reg = DSPCNTR(plane);
- dspcntr = I915_READ(reg);
- /* Mask out pixel format bits in case we change it */
- dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
- switch (fb->bits_per_pixel) {
- case 8:
- dspcntr |= DISPPLANE_8BPP;
- break;
- case 16:
- if (fb->depth == 15)
- dspcntr |= DISPPLANE_15_16BPP;
- else
- dspcntr |= DISPPLANE_16BPP;
- break;
- case 24:
- case 32:
- dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
- break;
- default:
- DRM_ERROR("Unknown color depth\n");
- return -EINVAL;
- }
- if (INTEL_INFO(dev)->gen >= 4) {
- if (obj->tiling_mode != I915_TILING_NONE)
- dspcntr |= DISPPLANE_TILED;
- else
- dspcntr &= ~DISPPLANE_TILED;
- }
+ reg = PIPECONF(pipe);
+ val = I915_READ(reg);
+ if ((val & PIPECONF_ENABLE) == 0)
+ return;
- if (HAS_PCH_SPLIT(dev))
- /* must disable */
- dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
+ I915_WRITE(reg, val & ~PIPECONF_ENABLE);
+ intel_wait_for_pipe_off(dev_priv->dev, pipe);
+}
- I915_WRITE(reg, dspcntr);
+/**
+ * intel_enable_plane - enable a display plane on a given pipe
+ * @dev_priv: i915 private structure
+ * @plane: plane to enable
+ * @pipe: pipe being fed
+ *
+ * Enable @plane on @pipe, making sure that @pipe is running first.
+ */
+static void intel_enable_plane(struct drm_i915_private *dev_priv,
+ enum plane plane, enum pipe pipe)
+{
+ int reg;
+ u32 val;
- Start = obj->gtt_offset;
- Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8);
+ /* If the pipe isn't enabled, we can't pump pixels and may hang */
+ assert_pipe_enabled(dev_priv, pipe);
- DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
- Start, Offset, x, y, fb->pitch);
- I915_WRITE(DSPSTRIDE(plane), fb->pitch);
- if (INTEL_INFO(dev)->gen >= 4) {
- I915_WRITE(DSPSURF(plane), Start);
- I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
- I915_WRITE(DSPADDR(plane), Offset);
- } else
- I915_WRITE(DSPADDR(plane), Start + Offset);
- POSTING_READ(reg);
-
- intel_update_fbc(dev);
- intel_increase_pllclock(crtc);
+ reg = DSPCNTR(plane);
+ val = I915_READ(reg);
+ if (val & DISPLAY_PLANE_ENABLE)
+ return;
- return 0;
+ I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
+ intel_wait_for_vblank(dev_priv->dev, pipe);
}
-static int
-intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
- struct drm_framebuffer *old_fb)
+/*
+ * Plane regs are double buffered, going from enabled->disabled needs a
+ * trigger in order to latch. The display address reg provides this.
+ */
+static void intel_flush_display_plane(struct drm_i915_private *dev_priv,
+ enum plane plane)
{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_master_private *master_priv;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int ret;
-
- /* no fb bound */
- if (!crtc->fb) {
- DRM_DEBUG_KMS("No FB bound\n");
- return 0;
- }
-
- switch (intel_crtc->plane) {
- case 0:
- case 1:
- break;
- default:
- return -EINVAL;
- }
+ u32 reg = DSPADDR(plane);
+ I915_WRITE(reg, I915_READ(reg));
+}
- mutex_lock(&dev->struct_mutex);
- ret = intel_pin_and_fence_fb_obj(dev,
- to_intel_framebuffer(crtc->fb)->obj,
- NULL);
- if (ret != 0) {
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
+/**
+ * intel_disable_plane - disable a display plane
+ * @dev_priv: i915 private structure
+ * @plane: plane to disable
+ * @pipe: pipe consuming the data
+ *
+ * Disable @plane; should be an independent operation.
+ */
+static void intel_disable_plane(struct drm_i915_private *dev_priv,
+ enum plane plane, enum pipe pipe)
+{
+ int reg;
+ u32 val;
- if (old_fb) {
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
+ reg = DSPCNTR(plane);
+ val = I915_READ(reg);
+ if ((val & DISPLAY_PLANE_ENABLE) == 0)
+ return;
- wait_event(dev_priv->pending_flip_queue,
- atomic_read(&obj->pending_flip) == 0);
+ I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
+ intel_flush_display_plane(dev_priv, plane);
+ intel_wait_for_vblank(dev_priv->dev, pipe);
+}
- /* Big Hammer, we also need to ensure that any pending
- * MI_WAIT_FOR_EVENT inside a user batch buffer on the
- * current scanout is retired before unpinning the old
- * framebuffer.
- */
- ret = i915_gem_object_flush_gpu(obj, false);
- if (ret) {
- i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
- }
+static void disable_pch_dp(struct drm_i915_private *dev_priv,
+ enum pipe pipe, int reg)
+{
+ u32 val = I915_READ(reg);
+ if (DP_PIPE_ENABLED(val, pipe))
+ I915_WRITE(reg, val & ~DP_PORT_EN);
+}
- ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y,
- LEAVE_ATOMIC_MODE_SET);
- if (ret) {
- i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
+static void disable_pch_hdmi(struct drm_i915_private *dev_priv,
+ enum pipe pipe, int reg)
+{
+ u32 val = I915_READ(reg);
+ if (HDMI_PIPE_ENABLED(val, pipe))
+ I915_WRITE(reg, val & ~PORT_ENABLE);
+}
- if (old_fb) {
- intel_wait_for_vblank(dev, intel_crtc->pipe);
- i915_gem_object_unpin(to_intel_framebuffer(old_fb)->obj);
- }
+/* Disable any ports connected to this transcoder */
+static void intel_disable_pch_ports(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ u32 reg, val;
- mutex_unlock(&dev->struct_mutex);
+ val = I915_READ(PCH_PP_CONTROL);
+ I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS);
- if (!dev->primary->master)
- return 0;
+ disable_pch_dp(dev_priv, pipe, PCH_DP_B);
+ disable_pch_dp(dev_priv, pipe, PCH_DP_C);
+ disable_pch_dp(dev_priv, pipe, PCH_DP_D);
- master_priv = dev->primary->master->driver_priv;
- if (!master_priv->sarea_priv)
- return 0;
+ reg = PCH_ADPA;
+ val = I915_READ(reg);
+ if (ADPA_PIPE_ENABLED(val, pipe))
+ I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);
- if (intel_crtc->pipe) {
- master_priv->sarea_priv->pipeB_x = x;
- master_priv->sarea_priv->pipeB_y = y;
- } else {
- master_priv->sarea_priv->pipeA_x = x;
- master_priv->sarea_priv->pipeA_y = y;
+ reg = PCH_LVDS;
+ val = I915_READ(reg);
+ if (LVDS_PIPE_ENABLED(val, pipe)) {
+ I915_WRITE(reg, val & ~LVDS_PORT_EN);
+ POSTING_READ(reg);
+ udelay(100);
}
- return 0;
+ disable_pch_hdmi(dev_priv, pipe, HDMIB);
+ disable_pch_hdmi(dev_priv, pipe, HDMIC);
+ disable_pch_hdmi(dev_priv, pipe, HDMID);
}
-static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock)
+static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 dpa_ctl;
+ struct drm_framebuffer *fb = crtc->fb;
+ struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int plane, i;
+ u32 fbc_ctl, fbc_ctl2;
- DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock);
- dpa_ctl = I915_READ(DP_A);
- dpa_ctl &= ~DP_PLL_FREQ_MASK;
+ if (fb->pitch == dev_priv->cfb_pitch &&
+ obj->fence_reg == dev_priv->cfb_fence &&
+ intel_crtc->plane == dev_priv->cfb_plane &&
+ I915_READ(FBC_CONTROL) & FBC_CTL_EN)
+ return;
- if (clock < 200000) {
- u32 temp;
- dpa_ctl |= DP_PLL_FREQ_160MHZ;
- /* workaround for 160Mhz:
- 1) program 0x4600c bits 15:0 = 0x8124
- 2) program 0x46010 bit 0 = 1
- 3) program 0x46034 bit 24 = 1
- 4) program 0x64000 bit 14 = 1
- */
- temp = I915_READ(0x4600c);
- temp &= 0xffff0000;
- I915_WRITE(0x4600c, temp | 0x8124);
+ i8xx_disable_fbc(dev);
- temp = I915_READ(0x46010);
- I915_WRITE(0x46010, temp | 1);
+ dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE;
- temp = I915_READ(0x46034);
- I915_WRITE(0x46034, temp | (1 << 24));
- } else {
- dpa_ctl |= DP_PLL_FREQ_270MHZ;
- }
- I915_WRITE(DP_A, dpa_ctl);
+ if (fb->pitch < dev_priv->cfb_pitch)
+ dev_priv->cfb_pitch = fb->pitch;
- POSTING_READ(DP_A);
- udelay(500);
+ /* FBC_CTL wants 64B units */
+ dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
+ dev_priv->cfb_fence = obj->fence_reg;
+ dev_priv->cfb_plane = intel_crtc->plane;
+ plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB;
+
+ /* Clear old tags */
+ for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++)
+ I915_WRITE(FBC_TAG + (i * 4), 0);
+
+ /* Set it up... */
+ fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane;
+ if (obj->tiling_mode != I915_TILING_NONE)
+ fbc_ctl2 |= FBC_CTL_CPU_FENCE;
+ I915_WRITE(FBC_CONTROL2, fbc_ctl2);
+ I915_WRITE(FBC_FENCE_OFF, crtc->y);
+
+ /* enable it... */
+ fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC;
+ if (IS_I945GM(dev))
+ fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */
+ fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;
+ fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT;
+ if (obj->tiling_mode != I915_TILING_NONE)
+ fbc_ctl |= dev_priv->cfb_fence;
+ I915_WRITE(FBC_CONTROL, fbc_ctl);
+
+ DRM_DEBUG_KMS("enabled FBC, pitch %ld, yoff %d, plane %d, ",
+ dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane);
}
-static void intel_fdi_normal_train(struct drm_crtc *crtc)
+void i8xx_disable_fbc(struct drm_device *dev)
{
- struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- u32 reg, temp;
+ u32 fbc_ctl;
- /* enable normal train */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
- I915_WRITE(reg, temp);
+ /* Disable compression */
+ fbc_ctl = I915_READ(FBC_CONTROL);
+ if ((fbc_ctl & FBC_CTL_EN) == 0)
+ return;
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- if (HAS_PCH_CPT(dev)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_NORMAL_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_NONE;
+ fbc_ctl &= ~FBC_CTL_EN;
+ I915_WRITE(FBC_CONTROL, fbc_ctl);
+
+ /* Wait for compressing bit to clear */
+ if (wait_for((I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) == 0, 10)) {
+ DRM_DEBUG_KMS("FBC idle timed out\n");
+ return;
}
- I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
- /* wait one idle pattern time */
- POSTING_READ(reg);
- udelay(1000);
+ DRM_DEBUG_KMS("disabled FBC\n");
}
-/* The FDI link training functions for ILK/Ibexpeak. */
-static void ironlake_fdi_link_train(struct drm_crtc *crtc)
+static bool i8xx_fbc_enabled(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ return I915_READ(FBC_CONTROL) & FBC_CTL_EN;
+}
+
+static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_framebuffer *fb = crtc->fb;
+ struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- u32 reg, temp, tries;
+ int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB;
+ unsigned long stall_watermark = 200;
+ u32 dpfc_ctl;
- /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
- for train result */
- reg = FDI_RX_IMR(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_RX_SYMBOL_LOCK;
- temp &= ~FDI_RX_BIT_LOCK;
- I915_WRITE(reg, temp);
- I915_READ(reg);
- udelay(150);
+ dpfc_ctl = I915_READ(DPFC_CONTROL);
+ if (dpfc_ctl & DPFC_CTL_EN) {
+ if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 &&
+ dev_priv->cfb_fence == obj->fence_reg &&
+ dev_priv->cfb_plane == intel_crtc->plane &&
+ dev_priv->cfb_y == crtc->y)
+ return;
- /* enable CPU FDI TX and PCH FDI RX */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~(7 << 19);
- temp |= (intel_crtc->fdi_lanes - 1) << 19;
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- I915_WRITE(reg, temp | FDI_TX_ENABLE);
-
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- I915_WRITE(reg, temp | FDI_RX_ENABLE);
-
- POSTING_READ(reg);
- udelay(150);
-
- /* Ironlake workaround, enable clock pointer after FDI enable*/
- I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_ENABLE);
+ I915_WRITE(DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN);
+ intel_wait_for_vblank(dev, intel_crtc->pipe);
+ }
- reg = FDI_RX_IIR(pipe);
- for (tries = 0; tries < 5; tries++) {
- temp = I915_READ(reg);
- DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
+ dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
+ dev_priv->cfb_fence = obj->fence_reg;
+ dev_priv->cfb_plane = intel_crtc->plane;
+ dev_priv->cfb_y = crtc->y;
- if ((temp & FDI_RX_BIT_LOCK)) {
- DRM_DEBUG_KMS("FDI train 1 done.\n");
- I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
- break;
- }
+ dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X;
+ if (obj->tiling_mode != I915_TILING_NONE) {
+ dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence;
+ I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY);
+ } else {
+ I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY);
}
- if (tries == 5)
- DRM_ERROR("FDI train 1 fail!\n");
- /* Train 2 */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
- I915_WRITE(reg, temp);
+ I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
+ (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
+ (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
+ I915_WRITE(DPFC_FENCE_YOFF, crtc->y);
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
- I915_WRITE(reg, temp);
+ /* enable it... */
+ I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN);
- POSTING_READ(reg);
- udelay(150);
+ DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
+}
- reg = FDI_RX_IIR(pipe);
- for (tries = 0; tries < 5; tries++) {
- temp = I915_READ(reg);
- DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
+void g4x_disable_fbc(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 dpfc_ctl;
- if (temp & FDI_RX_SYMBOL_LOCK) {
- I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
- DRM_DEBUG_KMS("FDI train 2 done.\n");
- break;
- }
+ /* Disable compression */
+ dpfc_ctl = I915_READ(DPFC_CONTROL);
+ if (dpfc_ctl & DPFC_CTL_EN) {
+ dpfc_ctl &= ~DPFC_CTL_EN;
+ I915_WRITE(DPFC_CONTROL, dpfc_ctl);
+
+ DRM_DEBUG_KMS("disabled FBC\n");
}
- if (tries == 5)
- DRM_ERROR("FDI train 2 fail!\n");
+}
- DRM_DEBUG_KMS("FDI train done\n");
+static bool g4x_fbc_enabled(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN;
}
-static const int const snb_b_fdi_train_param [] = {
- FDI_LINK_TRAIN_400MV_0DB_SNB_B,
- FDI_LINK_TRAIN_400MV_6DB_SNB_B,
- FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
- FDI_LINK_TRAIN_800MV_0DB_SNB_B,
-};
+static void sandybridge_blit_fbc_update(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 blt_ecoskpd;
+
+ /* Make sure blitter notifies FBC of writes */
+ gen6_gt_force_wake_get(dev_priv);
+ blt_ecoskpd = I915_READ(GEN6_BLITTER_ECOSKPD);
+ blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY <<
+ GEN6_BLITTER_LOCK_SHIFT;
+ I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd);
+ blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY;
+ I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd);
+ blt_ecoskpd &= ~(GEN6_BLITTER_FBC_NOTIFY <<
+ GEN6_BLITTER_LOCK_SHIFT);
+ I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd);
+ POSTING_READ(GEN6_BLITTER_ECOSKPD);
+ gen6_gt_force_wake_put(dev_priv);
+}
-/* The FDI link training functions for SNB/Cougarpoint. */
-static void gen6_fdi_link_train(struct drm_crtc *crtc)
+static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_framebuffer *fb = crtc->fb;
+ struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- u32 reg, temp, i;
+ int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB;
+ unsigned long stall_watermark = 200;
+ u32 dpfc_ctl;
- /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
- for train result */
- reg = FDI_RX_IMR(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_RX_SYMBOL_LOCK;
- temp &= ~FDI_RX_BIT_LOCK;
- I915_WRITE(reg, temp);
+ dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
+ if (dpfc_ctl & DPFC_CTL_EN) {
+ if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 &&
+ dev_priv->cfb_fence == obj->fence_reg &&
+ dev_priv->cfb_plane == intel_crtc->plane &&
+ dev_priv->cfb_offset == obj->gtt_offset &&
+ dev_priv->cfb_y == crtc->y)
+ return;
- POSTING_READ(reg);
- udelay(150);
+ I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN);
+ intel_wait_for_vblank(dev, intel_crtc->pipe);
+ }
- /* enable CPU FDI TX and PCH FDI RX */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~(7 << 19);
- temp |= (intel_crtc->fdi_lanes - 1) << 19;
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- /* SNB-B */
- temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
- I915_WRITE(reg, temp | FDI_TX_ENABLE);
+ dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
+ dev_priv->cfb_fence = obj->fence_reg;
+ dev_priv->cfb_plane = intel_crtc->plane;
+ dev_priv->cfb_offset = obj->gtt_offset;
+ dev_priv->cfb_y = crtc->y;
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- if (HAS_PCH_CPT(dev)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ dpfc_ctl &= DPFC_RESERVED;
+ dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X);
+ if (obj->tiling_mode != I915_TILING_NONE) {
+ dpfc_ctl |= (DPFC_CTL_FENCE_EN | dev_priv->cfb_fence);
+ I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY);
} else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
+ I915_WRITE(ILK_DPFC_CHICKEN, ~DPFC_HT_MODIFY);
}
- I915_WRITE(reg, temp | FDI_RX_ENABLE);
-
- POSTING_READ(reg);
- udelay(150);
-
- for (i = 0; i < 4; i++ ) {
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- temp |= snb_b_fdi_train_param[i];
- I915_WRITE(reg, temp);
-
- POSTING_READ(reg);
- udelay(500);
-
- reg = FDI_RX_IIR(pipe);
- temp = I915_READ(reg);
- DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
- if (temp & FDI_RX_BIT_LOCK) {
- I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
- DRM_DEBUG_KMS("FDI train 1 done.\n");
- break;
- }
- }
- if (i == 4)
- DRM_ERROR("FDI train 1 fail!\n");
+ I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
+ (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
+ (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
+ I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y);
+ I915_WRITE(ILK_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID);
+ /* enable it... */
+ I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);
- /* Train 2 */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
if (IS_GEN6(dev)) {
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- /* SNB-B */
- temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
- }
- I915_WRITE(reg, temp);
-
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- if (HAS_PCH_CPT(dev)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_2;
+ I915_WRITE(SNB_DPFC_CTL_SA,
+ SNB_CPU_FENCE_ENABLE | dev_priv->cfb_fence);
+ I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y);
+ sandybridge_blit_fbc_update(dev);
}
- I915_WRITE(reg, temp);
-
- POSTING_READ(reg);
- udelay(150);
- for (i = 0; i < 4; i++ ) {
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
- temp |= snb_b_fdi_train_param[i];
- I915_WRITE(reg, temp);
+ DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
+}
- POSTING_READ(reg);
- udelay(500);
+void ironlake_disable_fbc(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 dpfc_ctl;
- reg = FDI_RX_IIR(pipe);
- temp = I915_READ(reg);
- DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
+ /* Disable compression */
+ dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
+ if (dpfc_ctl & DPFC_CTL_EN) {
+ dpfc_ctl &= ~DPFC_CTL_EN;
+ I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);
- if (temp & FDI_RX_SYMBOL_LOCK) {
- I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
- DRM_DEBUG_KMS("FDI train 2 done.\n");
- break;
- }
+ DRM_DEBUG_KMS("disabled FBC\n");
}
- if (i == 4)
- DRM_ERROR("FDI train 2 fail!\n");
-
- DRM_DEBUG_KMS("FDI train done.\n");
}
-static void ironlake_fdi_enable(struct drm_crtc *crtc)
+static bool ironlake_fbc_enabled(struct drm_device *dev)
{
- struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- u32 reg, temp;
- /* Write the TU size bits so error detection works */
- I915_WRITE(FDI_RX_TUSIZE1(pipe),
- I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
+ return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN;
+}
- /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~((0x7 << 19) | (0x7 << 16));
- temp |= (intel_crtc->fdi_lanes - 1) << 19;
- temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
- I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
-
- POSTING_READ(reg);
- udelay(200);
-
- /* Switch from Rawclk to PCDclk */
- temp = I915_READ(reg);
- I915_WRITE(reg, temp | FDI_PCDCLK);
-
- POSTING_READ(reg);
- udelay(200);
-
- /* Enable CPU FDI TX PLL, always on for Ironlake */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- if ((temp & FDI_TX_PLL_ENABLE) == 0) {
- I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
-
- POSTING_READ(reg);
- udelay(100);
- }
-}
-
-static void intel_flush_display_plane(struct drm_device *dev,
- int plane)
+bool intel_fbc_enabled(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 reg = DSPADDR(plane);
- I915_WRITE(reg, I915_READ(reg));
+
+ if (!dev_priv->display.fbc_enabled)
+ return false;
+
+ return dev_priv->display.fbc_enabled(dev);
}
-/*
- * When we disable a pipe, we need to clear any pending scanline wait events
- * to avoid hanging the ring, which we assume we are waiting on.
- */
-static void intel_clear_scanline_wait(struct drm_device *dev)
+void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring;
- u32 tmp;
+ struct drm_i915_private *dev_priv = crtc->dev->dev_private;
- if (IS_GEN2(dev))
- /* Can't break the hang on i8xx */
+ if (!dev_priv->display.enable_fbc)
return;
- ring = LP_RING(dev_priv);
- tmp = I915_READ_CTL(ring);
- if (tmp & RING_WAIT)
- I915_WRITE_CTL(ring, tmp);
+ dev_priv->display.enable_fbc(crtc, interval);
}
-static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
+void intel_disable_fbc(struct drm_device *dev)
{
- struct drm_i915_gem_object *obj;
- struct drm_i915_private *dev_priv;
+ struct drm_i915_private *dev_priv = dev->dev_private;
- if (crtc->fb == NULL)
+ if (!dev_priv->display.disable_fbc)
return;
- obj = to_intel_framebuffer(crtc->fb)->obj;
- dev_priv = crtc->dev->dev_private;
- wait_event(dev_priv->pending_flip_queue,
- atomic_read(&obj->pending_flip) == 0);
+ dev_priv->display.disable_fbc(dev);
}
-static void ironlake_crtc_enable(struct drm_crtc *crtc)
+/**
+ * intel_update_fbc - enable/disable FBC as needed
+ * @dev: the drm_device
+ *
+ * Set up the framebuffer compression hardware at mode set time. We
+ * enable it if possible:
+ * - plane A only (on pre-965)
+ * - no pixel mulitply/line duplication
+ * - no alpha buffer discard
+ * - no dual wide
+ * - framebuffer <= 2048 in width, 1536 in height
+ *
+ * We can't assume that any compression will take place (worst case),
+ * so the compressed buffer has to be the same size as the uncompressed
+ * one. It also must reside (along with the line length buffer) in
+ * stolen memory.
+ *
+ * We need to enable/disable FBC on a global basis.
+ */
+static void intel_update_fbc(struct drm_device *dev)
{
- struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- int plane = intel_crtc->plane;
- u32 reg, temp;
+ struct drm_crtc *crtc = NULL, *tmp_crtc;
+ struct intel_crtc *intel_crtc;
+ struct drm_framebuffer *fb;
+ struct intel_framebuffer *intel_fb;
+ struct drm_i915_gem_object *obj;
- if (intel_crtc->active)
+ DRM_DEBUG_KMS("\n");
+
+ if (!i915_powersave)
return;
- intel_crtc->active = true;
- intel_update_watermarks(dev);
+ if (!I915_HAS_FBC(dev))
+ return;
- if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
- temp = I915_READ(PCH_LVDS);
- if ((temp & LVDS_PORT_EN) == 0)
- I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
+ /*
+ * If FBC is already on, we just have to verify that we can
+ * keep it that way...
+ * Need to disable if:
+ * - more than one pipe is active
+ * - changing FBC params (stride, fence, mode)
+ * - new fb is too large to fit in compressed buffer
+ * - going to an unsupported config (interlace, pixel multiply, etc.)
+ */
+ list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) {
+ if (tmp_crtc->enabled && tmp_crtc->fb) {
+ if (crtc) {
+ DRM_DEBUG_KMS("more than one pipe active, disabling compression\n");
+ dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES;
+ goto out_disable;
+ }
+ crtc = tmp_crtc;
+ }
}
- ironlake_fdi_enable(crtc);
-
- /* Enable panel fitting for LVDS */
- if (dev_priv->pch_pf_size &&
- (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) {
- /* Force use of hard-coded filter coefficients
- * as some pre-programmed values are broken,
- * e.g. x201.
- */
- I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1,
- PF_ENABLE | PF_FILTER_MED_3x3);
- I915_WRITE(pipe ? PFB_WIN_POS : PFA_WIN_POS,
- dev_priv->pch_pf_pos);
- I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ,
- dev_priv->pch_pf_size);
+ if (!crtc || crtc->fb == NULL) {
+ DRM_DEBUG_KMS("no output, disabling\n");
+ dev_priv->no_fbc_reason = FBC_NO_OUTPUT;
+ goto out_disable;
}
- /* Enable CPU pipe */
- reg = PIPECONF(pipe);
- temp = I915_READ(reg);
- if ((temp & PIPECONF_ENABLE) == 0) {
- I915_WRITE(reg, temp | PIPECONF_ENABLE);
- POSTING_READ(reg);
- intel_wait_for_vblank(dev, intel_crtc->pipe);
- }
+ intel_crtc = to_intel_crtc(crtc);
+ fb = crtc->fb;
+ intel_fb = to_intel_framebuffer(fb);
+ obj = intel_fb->obj;
- /* configure and enable CPU plane */
- reg = DSPCNTR(plane);
- temp = I915_READ(reg);
- if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
- I915_WRITE(reg, temp | DISPLAY_PLANE_ENABLE);
- intel_flush_display_plane(dev, plane);
+ if (intel_fb->obj->base.size > dev_priv->cfb_size) {
+ DRM_DEBUG_KMS("framebuffer too large, disabling "
+ "compression\n");
+ dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
+ goto out_disable;
+ }
+ if ((crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) ||
+ (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)) {
+ DRM_DEBUG_KMS("mode incompatible with compression, "
+ "disabling\n");
+ dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE;
+ goto out_disable;
+ }
+ if ((crtc->mode.hdisplay > 2048) ||
+ (crtc->mode.vdisplay > 1536)) {
+ DRM_DEBUG_KMS("mode too large for compression, disabling\n");
+ dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE;
+ goto out_disable;
+ }
+ if ((IS_I915GM(dev) || IS_I945GM(dev)) && intel_crtc->plane != 0) {
+ DRM_DEBUG_KMS("plane not 0, disabling compression\n");
+ dev_priv->no_fbc_reason = FBC_BAD_PLANE;
+ goto out_disable;
+ }
+ if (obj->tiling_mode != I915_TILING_X) {
+ DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n");
+ dev_priv->no_fbc_reason = FBC_NOT_TILED;
+ goto out_disable;
}
- /* For PCH output, training FDI link */
- if (IS_GEN6(dev))
- gen6_fdi_link_train(crtc);
- else
- ironlake_fdi_link_train(crtc);
+ /* If the kernel debugger is active, always disable compression */
+ if (in_dbg_master())
+ goto out_disable;
- /* enable PCH DPLL */
- reg = PCH_DPLL(pipe);
- temp = I915_READ(reg);
- if ((temp & DPLL_VCO_ENABLE) == 0) {
- I915_WRITE(reg, temp | DPLL_VCO_ENABLE);
- POSTING_READ(reg);
- udelay(200);
- }
+ intel_enable_fbc(crtc, 500);
+ return;
- if (HAS_PCH_CPT(dev)) {
- /* Be sure PCH DPLL SEL is set */
- temp = I915_READ(PCH_DPLL_SEL);
- if (pipe == 0 && (temp & TRANSA_DPLL_ENABLE) == 0)
- temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL);
- else if (pipe == 1 && (temp & TRANSB_DPLL_ENABLE) == 0)
- temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
- I915_WRITE(PCH_DPLL_SEL, temp);
+out_disable:
+ /* Multiple disables should be harmless */
+ if (intel_fbc_enabled(dev)) {
+ DRM_DEBUG_KMS("unsupported config, disabling FBC\n");
+ intel_disable_fbc(dev);
}
+}
- /* set transcoder timing */
- I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe)));
- I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe)));
- I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe)));
+int
+intel_pin_and_fence_fb_obj(struct drm_device *dev,
+ struct drm_i915_gem_object *obj,
+ struct intel_ring_buffer *pipelined)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 alignment;
+ int ret;
- I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe)));
- I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe)));
- I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe)));
+ switch (obj->tiling_mode) {
+ case I915_TILING_NONE:
+ if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
+ alignment = 128 * 1024;
+ else if (INTEL_INFO(dev)->gen >= 4)
+ alignment = 4 * 1024;
+ else
+ alignment = 64 * 1024;
+ break;
+ case I915_TILING_X:
+ /* pin() will align the object as required by fence */
+ alignment = 0;
+ break;
+ case I915_TILING_Y:
+ /* FIXME: Is this true? */
+ DRM_ERROR("Y tiled not allowed for scan out buffers\n");
+ return -EINVAL;
+ default:
+ BUG();
+ }
- intel_fdi_normal_train(crtc);
+ dev_priv->mm.interruptible = false;
+ ret = i915_gem_object_pin(obj, alignment, true);
+ if (ret)
+ goto err_interruptible;
- /* For PCH DP, enable TRANS_DP_CTL */
- if (HAS_PCH_CPT(dev) &&
- intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
- reg = TRANS_DP_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~(TRANS_DP_PORT_SEL_MASK |
- TRANS_DP_SYNC_MASK |
- TRANS_DP_BPC_MASK);
- temp |= (TRANS_DP_OUTPUT_ENABLE |
- TRANS_DP_ENH_FRAMING);
- temp |= TRANS_DP_8BPC;
+ ret = i915_gem_object_set_to_display_plane(obj, pipelined);
+ if (ret)
+ goto err_unpin;
- if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
- temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
- if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
- temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
-
- switch (intel_trans_dp_port_sel(crtc)) {
- case PCH_DP_B:
- temp |= TRANS_DP_PORT_SEL_B;
- break;
- case PCH_DP_C:
- temp |= TRANS_DP_PORT_SEL_C;
- break;
- case PCH_DP_D:
- temp |= TRANS_DP_PORT_SEL_D;
- break;
- default:
- DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n");
- temp |= TRANS_DP_PORT_SEL_B;
- break;
- }
-
- I915_WRITE(reg, temp);
+ /* Install a fence for tiled scan-out. Pre-i965 always needs a
+ * fence, whereas 965+ only requires a fence if using
+ * framebuffer compression. For simplicity, we always install
+ * a fence as the cost is not that onerous.
+ */
+ if (obj->tiling_mode != I915_TILING_NONE) {
+ ret = i915_gem_object_get_fence(obj, pipelined);
+ if (ret)
+ goto err_unpin;
}
- /* enable PCH transcoder */
- reg = TRANSCONF(pipe);
- temp = I915_READ(reg);
- /*
- * make the BPC in transcoder be consistent with
- * that in pipeconf reg.
- */
- temp &= ~PIPE_BPC_MASK;
- temp |= I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK;
- I915_WRITE(reg, temp | TRANS_ENABLE);
- if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
- DRM_ERROR("failed to enable transcoder %d\n", pipe);
+ dev_priv->mm.interruptible = true;
+ return 0;
- intel_crtc_load_lut(crtc);
- intel_update_fbc(dev);
- intel_crtc_update_cursor(crtc, true);
+err_unpin:
+ i915_gem_object_unpin(obj);
+err_interruptible:
+ dev_priv->mm.interruptible = true;
+ return ret;
}
-static void ironlake_crtc_disable(struct drm_crtc *crtc)
+/* Assume fb object is pinned & idle & fenced and just update base pointers */
+static int
+intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
+ int x, int y, enum mode_set_atomic state)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
+ struct intel_framebuffer *intel_fb;
+ struct drm_i915_gem_object *obj;
int plane = intel_crtc->plane;
- u32 reg, temp;
+ unsigned long Start, Offset;
+ u32 dspcntr;
+ u32 reg;
- if (!intel_crtc->active)
- return;
+ switch (plane) {
+ case 0:
+ case 1:
+ break;
+ default:
+ DRM_ERROR("Can't update plane %d in SAREA\n", plane);
+ return -EINVAL;
+ }
- intel_crtc_wait_for_pending_flips(crtc);
- drm_vblank_off(dev, pipe);
- intel_crtc_update_cursor(crtc, false);
+ intel_fb = to_intel_framebuffer(fb);
+ obj = intel_fb->obj;
- /* Disable display plane */
reg = DSPCNTR(plane);
- temp = I915_READ(reg);
- if (temp & DISPLAY_PLANE_ENABLE) {
- I915_WRITE(reg, temp & ~DISPLAY_PLANE_ENABLE);
- intel_flush_display_plane(dev, plane);
+ dspcntr = I915_READ(reg);
+ /* Mask out pixel format bits in case we change it */
+ dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+ switch (fb->bits_per_pixel) {
+ case 8:
+ dspcntr |= DISPPLANE_8BPP;
+ break;
+ case 16:
+ if (fb->depth == 15)
+ dspcntr |= DISPPLANE_15_16BPP;
+ else
+ dspcntr |= DISPPLANE_16BPP;
+ break;
+ case 24:
+ case 32:
+ dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+ break;
+ default:
+ DRM_ERROR("Unknown color depth\n");
+ return -EINVAL;
}
-
- if (dev_priv->cfb_plane == plane &&
- dev_priv->display.disable_fbc)
- dev_priv->display.disable_fbc(dev);
-
- /* disable cpu pipe, disable after all planes disabled */
- reg = PIPECONF(pipe);
- temp = I915_READ(reg);
- if (temp & PIPECONF_ENABLE) {
- I915_WRITE(reg, temp & ~PIPECONF_ENABLE);
- POSTING_READ(reg);
- /* wait for cpu pipe off, pipe state */
- intel_wait_for_pipe_off(dev, intel_crtc->pipe);
+ if (INTEL_INFO(dev)->gen >= 4) {
+ if (obj->tiling_mode != I915_TILING_NONE)
+ dspcntr |= DISPPLANE_TILED;
+ else
+ dspcntr &= ~DISPPLANE_TILED;
}
- /* Disable PF */
- I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, 0);
- I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, 0);
+ if (HAS_PCH_SPLIT(dev))
+ /* must disable */
+ dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
- /* disable CPU FDI tx and PCH FDI rx */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
- POSTING_READ(reg);
+ I915_WRITE(reg, dspcntr);
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~(0x7 << 16);
- temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
- I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
+ Start = obj->gtt_offset;
+ Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8);
+ DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
+ Start, Offset, x, y, fb->pitch);
+ I915_WRITE(DSPSTRIDE(plane), fb->pitch);
+ if (INTEL_INFO(dev)->gen >= 4) {
+ I915_WRITE(DSPSURF(plane), Start);
+ I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
+ I915_WRITE(DSPADDR(plane), Offset);
+ } else
+ I915_WRITE(DSPADDR(plane), Start + Offset);
POSTING_READ(reg);
- udelay(100);
- /* Ironlake workaround, disable clock pointer after downing FDI */
- if (HAS_PCH_IBX(dev))
- I915_WRITE(FDI_RX_CHICKEN(pipe),
- I915_READ(FDI_RX_CHICKEN(pipe) &
- ~FDI_RX_PHASE_SYNC_POINTER_ENABLE));
+ intel_update_fbc(dev);
+ intel_increase_pllclock(crtc);
- /* still set train pattern 1 */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- I915_WRITE(reg, temp);
+ return 0;
+}
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- if (HAS_PCH_CPT(dev)) {
- temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
- temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
- } else {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_PATTERN_1;
- }
- /* BPC in FDI rx is consistent with that in PIPECONF */
- temp &= ~(0x07 << 16);
- temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
- I915_WRITE(reg, temp);
+static int
+intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_master_private *master_priv;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int ret;
- POSTING_READ(reg);
- udelay(100);
+ /* no fb bound */
+ if (!crtc->fb) {
+ DRM_DEBUG_KMS("No FB bound\n");
+ return 0;
+ }
- if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
- temp = I915_READ(PCH_LVDS);
- if (temp & LVDS_PORT_EN) {
- I915_WRITE(PCH_LVDS, temp & ~LVDS_PORT_EN);
- POSTING_READ(PCH_LVDS);
- udelay(100);
- }
+ switch (intel_crtc->plane) {
+ case 0:
+ case 1:
+ break;
+ default:
+ return -EINVAL;
}
- /* disable PCH transcoder */
- reg = TRANSCONF(plane);
- temp = I915_READ(reg);
- if (temp & TRANS_ENABLE) {
- I915_WRITE(reg, temp & ~TRANS_ENABLE);
- /* wait for PCH transcoder off, transcoder state */
- if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
- DRM_ERROR("failed to disable transcoder\n");
+ mutex_lock(&dev->struct_mutex);
+ ret = intel_pin_and_fence_fb_obj(dev,
+ to_intel_framebuffer(crtc->fb)->obj,
+ NULL);
+ if (ret != 0) {
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
}
- if (HAS_PCH_CPT(dev)) {
- /* disable TRANS_DP_CTL */
- reg = TRANS_DP_CTL(pipe);
- temp = I915_READ(reg);
- temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
- I915_WRITE(reg, temp);
+ if (old_fb) {
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
- /* disable DPLL_SEL */
- temp = I915_READ(PCH_DPLL_SEL);
- if (pipe == 0)
- temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
- else
- temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
- I915_WRITE(PCH_DPLL_SEL, temp);
+ wait_event(dev_priv->pending_flip_queue,
+ atomic_read(&dev_priv->mm.wedged) ||
+ atomic_read(&obj->pending_flip) == 0);
+
+ /* Big Hammer, we also need to ensure that any pending
+ * MI_WAIT_FOR_EVENT inside a user batch buffer on the
+ * current scanout is retired before unpinning the old
+ * framebuffer.
+ *
+ * This should only fail upon a hung GPU, in which case we
+ * can safely continue.
+ */
+ ret = i915_gem_object_flush_gpu(obj);
+ (void) ret;
}
- /* disable PCH DPLL */
- reg = PCH_DPLL(pipe);
- temp = I915_READ(reg);
- I915_WRITE(reg, temp & ~DPLL_VCO_ENABLE);
+ ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y,
+ LEAVE_ATOMIC_MODE_SET);
+ if (ret) {
+ i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
- /* Switch from PCDclk to Rawclk */
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- I915_WRITE(reg, temp & ~FDI_PCDCLK);
+ if (old_fb) {
+ intel_wait_for_vblank(dev, intel_crtc->pipe);
+ i915_gem_object_unpin(to_intel_framebuffer(old_fb)->obj);
+ }
- /* Disable CPU FDI TX PLL */
- reg = FDI_TX_CTL(pipe);
- temp = I915_READ(reg);
- I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
+ mutex_unlock(&dev->struct_mutex);
- POSTING_READ(reg);
- udelay(100);
+ if (!dev->primary->master)
+ return 0;
- reg = FDI_RX_CTL(pipe);
- temp = I915_READ(reg);
- I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
+ master_priv = dev->primary->master->driver_priv;
+ if (!master_priv->sarea_priv)
+ return 0;
- /* Wait for the clocks to turn off. */
- POSTING_READ(reg);
- udelay(100);
+ if (intel_crtc->pipe) {
+ master_priv->sarea_priv->pipeB_x = x;
+ master_priv->sarea_priv->pipeB_y = y;
+ } else {
+ master_priv->sarea_priv->pipeA_x = x;
+ master_priv->sarea_priv->pipeA_y = y;
+ }
- intel_crtc->active = false;
- intel_update_watermarks(dev);
- intel_update_fbc(dev);
- intel_clear_scanline_wait(dev);
+ return 0;
}
-static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
+static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock)
{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- int plane = intel_crtc->plane;
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 dpa_ctl;
- /* XXX: When our outputs are all unaware of DPMS modes other than off
- * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
- */
- switch (mode) {
- case DRM_MODE_DPMS_ON:
- case DRM_MODE_DPMS_STANDBY:
- case DRM_MODE_DPMS_SUSPEND:
- DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane);
- ironlake_crtc_enable(crtc);
- break;
+ DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock);
+ dpa_ctl = I915_READ(DP_A);
+ dpa_ctl &= ~DP_PLL_FREQ_MASK;
- case DRM_MODE_DPMS_OFF:
- DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane);
- ironlake_crtc_disable(crtc);
- break;
- }
-}
+ if (clock < 200000) {
+ u32 temp;
+ dpa_ctl |= DP_PLL_FREQ_160MHZ;
+ /* workaround for 160Mhz:
+ 1) program 0x4600c bits 15:0 = 0x8124
+ 2) program 0x46010 bit 0 = 1
+ 3) program 0x46034 bit 24 = 1
+ 4) program 0x64000 bit 14 = 1
+ */
+ temp = I915_READ(0x4600c);
+ temp &= 0xffff0000;
+ I915_WRITE(0x4600c, temp | 0x8124);
-static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
-{
- if (!enable && intel_crtc->overlay) {
- struct drm_device *dev = intel_crtc->base.dev;
+ temp = I915_READ(0x46010);
+ I915_WRITE(0x46010, temp | 1);
- mutex_lock(&dev->struct_mutex);
- (void) intel_overlay_switch_off(intel_crtc->overlay, false);
- mutex_unlock(&dev->struct_mutex);
+ temp = I915_READ(0x46034);
+ I915_WRITE(0x46034, temp | (1 << 24));
+ } else {
+ dpa_ctl |= DP_PLL_FREQ_270MHZ;
}
+ I915_WRITE(DP_A, dpa_ctl);
- /* Let userspace switch the overlay on again. In most cases userspace
- * has to recompute where to put it anyway.
- */
+ POSTING_READ(DP_A);
+ udelay(500);
}
-static void i9xx_crtc_enable(struct drm_crtc *crtc)
+static void intel_fdi_normal_train(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- int plane = intel_crtc->plane;
u32 reg, temp;
- if (intel_crtc->active)
- return;
-
- intel_crtc->active = true;
- intel_update_watermarks(dev);
-
- /* Enable the DPLL */
- reg = DPLL(pipe);
+ /* enable normal train */
+ reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
- if ((temp & DPLL_VCO_ENABLE) == 0) {
- I915_WRITE(reg, temp);
-
- /* Wait for the clocks to stabilize. */
- POSTING_READ(reg);
- udelay(150);
-
- I915_WRITE(reg, temp | DPLL_VCO_ENABLE);
-
- /* Wait for the clocks to stabilize. */
- POSTING_READ(reg);
- udelay(150);
-
- I915_WRITE(reg, temp | DPLL_VCO_ENABLE);
-
- /* Wait for the clocks to stabilize. */
- POSTING_READ(reg);
- udelay(150);
+ if (IS_GEN6(dev)) {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
+ } else if (IS_IVYBRIDGE(dev)) {
+ temp &= ~FDI_LINK_TRAIN_NONE_IVB;
+ temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
}
+ I915_WRITE(reg, temp);
- /* Enable the pipe */
- reg = PIPECONF(pipe);
- temp = I915_READ(reg);
- if ((temp & PIPECONF_ENABLE) == 0)
- I915_WRITE(reg, temp | PIPECONF_ENABLE);
-
- /* Enable the plane */
- reg = DSPCNTR(plane);
+ reg = FDI_RX_CTL(pipe);
temp = I915_READ(reg);
- if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
- I915_WRITE(reg, temp | DISPLAY_PLANE_ENABLE);
- intel_flush_display_plane(dev, plane);
+ if (HAS_PCH_CPT(dev)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_NORMAL_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_NONE;
}
+ I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
- intel_crtc_load_lut(crtc);
- intel_update_fbc(dev);
+ /* wait one idle pattern time */
+ POSTING_READ(reg);
+ udelay(1000);
- /* Give the overlay scaler a chance to enable if it's on this pipe */
- intel_crtc_dpms_overlay(intel_crtc, true);
- intel_crtc_update_cursor(crtc, true);
+ /* IVB wants error correction enabled */
+ if (IS_IVYBRIDGE(dev))
+ I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
+ FDI_FE_ERRC_ENABLE);
}
-static void i9xx_crtc_disable(struct drm_crtc *crtc)
+/* The FDI link training functions for ILK/Ibexpeak. */
+static void ironlake_fdi_link_train(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
int plane = intel_crtc->plane;
- u32 reg, temp;
+ u32 reg, temp, tries;
- if (!intel_crtc->active)
- return;
+ /* FDI needs bits from pipe & plane first */
+ assert_pipe_enabled(dev_priv, pipe);
+ assert_plane_enabled(dev_priv, plane);
- /* Give the overlay scaler a chance to disable if it's on this pipe */
- intel_crtc_wait_for_pending_flips(crtc);
- drm_vblank_off(dev, pipe);
- intel_crtc_dpms_overlay(intel_crtc, false);
- intel_crtc_update_cursor(crtc, false);
+ /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
+ for train result */
+ reg = FDI_RX_IMR(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_RX_SYMBOL_LOCK;
+ temp &= ~FDI_RX_BIT_LOCK;
+ I915_WRITE(reg, temp);
+ I915_READ(reg);
+ udelay(150);
- if (dev_priv->cfb_plane == plane &&
- dev_priv->display.disable_fbc)
- dev_priv->display.disable_fbc(dev);
+ /* enable CPU FDI TX and PCH FDI RX */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~(7 << 19);
+ temp |= (intel_crtc->fdi_lanes - 1) << 19;
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ I915_WRITE(reg, temp | FDI_TX_ENABLE);
- /* Disable display plane */
- reg = DSPCNTR(plane);
+ reg = FDI_RX_CTL(pipe);
temp = I915_READ(reg);
- if (temp & DISPLAY_PLANE_ENABLE) {
- I915_WRITE(reg, temp & ~DISPLAY_PLANE_ENABLE);
- /* Flush the plane changes */
- intel_flush_display_plane(dev, plane);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ I915_WRITE(reg, temp | FDI_RX_ENABLE);
- /* Wait for vblank for the disable to take effect */
- if (IS_GEN2(dev))
- intel_wait_for_vblank(dev, pipe);
- }
+ POSTING_READ(reg);
+ udelay(150);
- /* Don't disable pipe A or pipe A PLLs if needed */
- if (pipe == 0 && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
- goto done;
+ /* Ironlake workaround, enable clock pointer after FDI enable*/
+ if (HAS_PCH_IBX(dev)) {
+ I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
+ I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
+ FDI_RX_PHASE_SYNC_POINTER_EN);
+ }
- /* Next, disable display pipes */
- reg = PIPECONF(pipe);
- temp = I915_READ(reg);
- if (temp & PIPECONF_ENABLE) {
- I915_WRITE(reg, temp & ~PIPECONF_ENABLE);
+ reg = FDI_RX_IIR(pipe);
+ for (tries = 0; tries < 5; tries++) {
+ temp = I915_READ(reg);
+ DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
- /* Wait for the pipe to turn off */
- POSTING_READ(reg);
- intel_wait_for_pipe_off(dev, pipe);
+ if ((temp & FDI_RX_BIT_LOCK)) {
+ DRM_DEBUG_KMS("FDI train 1 done.\n");
+ I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
+ break;
+ }
}
+ if (tries == 5)
+ DRM_ERROR("FDI train 1 fail!\n");
- reg = DPLL(pipe);
+ /* Train 2 */
+ reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
- if (temp & DPLL_VCO_ENABLE) {
- I915_WRITE(reg, temp & ~DPLL_VCO_ENABLE);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ I915_WRITE(reg, temp);
- /* Wait for the clocks to turn off. */
- POSTING_READ(reg);
- udelay(150);
- }
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ I915_WRITE(reg, temp);
-done:
- intel_crtc->active = false;
- intel_update_fbc(dev);
- intel_update_watermarks(dev);
- intel_clear_scanline_wait(dev);
-}
+ POSTING_READ(reg);
+ udelay(150);
-static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
-{
- /* XXX: When our outputs are all unaware of DPMS modes other than off
- * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
- */
- switch (mode) {
- case DRM_MODE_DPMS_ON:
- case DRM_MODE_DPMS_STANDBY:
- case DRM_MODE_DPMS_SUSPEND:
- i9xx_crtc_enable(crtc);
- break;
- case DRM_MODE_DPMS_OFF:
- i9xx_crtc_disable(crtc);
- break;
+ reg = FDI_RX_IIR(pipe);
+ for (tries = 0; tries < 5; tries++) {
+ temp = I915_READ(reg);
+ DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
+
+ if (temp & FDI_RX_SYMBOL_LOCK) {
+ I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
+ DRM_DEBUG_KMS("FDI train 2 done.\n");
+ break;
+ }
}
+ if (tries == 5)
+ DRM_ERROR("FDI train 2 fail!\n");
+
+ DRM_DEBUG_KMS("FDI train done\n");
+
}
-/**
- * Sets the power management mode of the pipe and plane.
- */
-static void intel_crtc_dpms(struct drm_crtc *crtc, int mode)
+static const int snb_b_fdi_train_param [] = {
+ FDI_LINK_TRAIN_400MV_0DB_SNB_B,
+ FDI_LINK_TRAIN_400MV_6DB_SNB_B,
+ FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
+ FDI_LINK_TRAIN_800MV_0DB_SNB_B,
+};
+
+/* The FDI link training functions for SNB/Cougarpoint. */
+static void gen6_fdi_link_train(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_i915_master_private *master_priv;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- bool enabled;
-
- if (intel_crtc->dpms_mode == mode)
- return;
-
- intel_crtc->dpms_mode = mode;
-
- dev_priv->display.dpms(crtc, mode);
+ u32 reg, temp, i;
- if (!dev->primary->master)
- return;
+ /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
+ for train result */
+ reg = FDI_RX_IMR(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_RX_SYMBOL_LOCK;
+ temp &= ~FDI_RX_BIT_LOCK;
+ I915_WRITE(reg, temp);
- master_priv = dev->primary->master->driver_priv;
- if (!master_priv->sarea_priv)
- return;
+ POSTING_READ(reg);
+ udelay(150);
- enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
+ /* enable CPU FDI TX and PCH FDI RX */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~(7 << 19);
+ temp |= (intel_crtc->fdi_lanes - 1) << 19;
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ /* SNB-B */
+ temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+ I915_WRITE(reg, temp | FDI_TX_ENABLE);
- switch (pipe) {
- case 0:
- master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
- master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
- break;
- case 1:
- master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
- master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
- break;
- default:
- DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);
- break;
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ if (HAS_PCH_CPT(dev)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
}
-}
+ I915_WRITE(reg, temp | FDI_RX_ENABLE);
-static void intel_crtc_disable(struct drm_crtc *crtc)
-{
- struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
- struct drm_device *dev = crtc->dev;
+ POSTING_READ(reg);
+ udelay(150);
- crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+ for (i = 0; i < 4; i++ ) {
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[i];
+ I915_WRITE(reg, temp);
- if (crtc->fb) {
- mutex_lock(&dev->struct_mutex);
- i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
- mutex_unlock(&dev->struct_mutex);
+ POSTING_READ(reg);
+ udelay(500);
+
+ reg = FDI_RX_IIR(pipe);
+ temp = I915_READ(reg);
+ DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
+
+ if (temp & FDI_RX_BIT_LOCK) {
+ I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
+ DRM_DEBUG_KMS("FDI train 1 done.\n");
+ break;
+ }
}
-}
+ if (i == 4)
+ DRM_ERROR("FDI train 1 fail!\n");
-/* Prepare for a mode set.
- *
- * Note we could be a lot smarter here. We need to figure out which outputs
- * will be enabled, which disabled (in short, how the config will changes)
- * and perform the minimum necessary steps to accomplish that, e.g. updating
- * watermarks, FBC configuration, making sure PLLs are programmed correctly,
- * panel fitting is in the proper state, etc.
- */
-static void i9xx_crtc_prepare(struct drm_crtc *crtc)
-{
- i9xx_crtc_disable(crtc);
-}
+ /* Train 2 */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ if (IS_GEN6(dev)) {
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ /* SNB-B */
+ temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+ }
+ I915_WRITE(reg, temp);
-static void i9xx_crtc_commit(struct drm_crtc *crtc)
-{
- i9xx_crtc_enable(crtc);
-}
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ if (HAS_PCH_CPT(dev)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_2;
+ }
+ I915_WRITE(reg, temp);
-static void ironlake_crtc_prepare(struct drm_crtc *crtc)
-{
- ironlake_crtc_disable(crtc);
-}
+ POSTING_READ(reg);
+ udelay(150);
-static void ironlake_crtc_commit(struct drm_crtc *crtc)
-{
- ironlake_crtc_enable(crtc);
-}
+ for (i = 0; i < 4; i++ ) {
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[i];
+ I915_WRITE(reg, temp);
-void intel_encoder_prepare (struct drm_encoder *encoder)
-{
- struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
- /* lvds has its own version of prepare see intel_lvds_prepare */
- encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
-}
+ POSTING_READ(reg);
+ udelay(500);
-void intel_encoder_commit (struct drm_encoder *encoder)
-{
- struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
- /* lvds has its own version of commit see intel_lvds_commit */
- encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
-}
+ reg = FDI_RX_IIR(pipe);
+ temp = I915_READ(reg);
+ DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
-void intel_encoder_destroy(struct drm_encoder *encoder)
-{
- struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
+ if (temp & FDI_RX_SYMBOL_LOCK) {
+ I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
+ DRM_DEBUG_KMS("FDI train 2 done.\n");
+ break;
+ }
+ }
+ if (i == 4)
+ DRM_ERROR("FDI train 2 fail!\n");
- drm_encoder_cleanup(encoder);
- kfree(intel_encoder);
+ DRM_DEBUG_KMS("FDI train done.\n");
}
-static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+/* Manual link training for Ivy Bridge A0 parts */
+static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ u32 reg, temp, i;
- if (HAS_PCH_SPLIT(dev)) {
- /* FDI link clock is fixed at 2.7G */
- if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
- return false;
- }
+ /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
+ for train result */
+ reg = FDI_RX_IMR(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_RX_SYMBOL_LOCK;
+ temp &= ~FDI_RX_BIT_LOCK;
+ I915_WRITE(reg, temp);
- /* XXX some encoders set the crtcinfo, others don't.
- * Obviously we need some form of conflict resolution here...
- */
- if (adjusted_mode->crtc_htotal == 0)
- drm_mode_set_crtcinfo(adjusted_mode, 0);
+ POSTING_READ(reg);
+ udelay(150);
- return true;
-}
+ /* enable CPU FDI TX and PCH FDI RX */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~(7 << 19);
+ temp |= (intel_crtc->fdi_lanes - 1) << 19;
+ temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
+ temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+ I915_WRITE(reg, temp | FDI_TX_ENABLE);
-static int i945_get_display_clock_speed(struct drm_device *dev)
-{
- return 400000;
-}
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_AUTO;
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ I915_WRITE(reg, temp | FDI_RX_ENABLE);
-static int i915_get_display_clock_speed(struct drm_device *dev)
-{
- return 333000;
-}
+ POSTING_READ(reg);
+ udelay(150);
-static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
-{
- return 200000;
-}
+ for (i = 0; i < 4; i++ ) {
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[i];
+ I915_WRITE(reg, temp);
-static int i915gm_get_display_clock_speed(struct drm_device *dev)
-{
- u16 gcfgc = 0;
+ POSTING_READ(reg);
+ udelay(500);
- pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
+ reg = FDI_RX_IIR(pipe);
+ temp = I915_READ(reg);
+ DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
- if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
- return 133000;
- else {
- switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
- case GC_DISPLAY_CLOCK_333_MHZ:
- return 333000;
- default:
- case GC_DISPLAY_CLOCK_190_200_MHZ:
- return 190000;
+ if (temp & FDI_RX_BIT_LOCK ||
+ (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
+ I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
+ DRM_DEBUG_KMS("FDI train 1 done.\n");
+ break;
}
}
-}
+ if (i == 4)
+ DRM_ERROR("FDI train 1 fail!\n");
-static int i865_get_display_clock_speed(struct drm_device *dev)
-{
- return 266000;
-}
+ /* Train 2 */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_NONE_IVB;
+ temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+ I915_WRITE(reg, temp);
-static int i855_get_display_clock_speed(struct drm_device *dev)
-{
- u16 hpllcc = 0;
- /* Assume that the hardware is in the high speed state. This
- * should be the default.
- */
- switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
- case GC_CLOCK_133_200:
- case GC_CLOCK_100_200:
- return 200000;
- case GC_CLOCK_166_250:
- return 250000;
- case GC_CLOCK_100_133:
- return 133000;
- }
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
+ I915_WRITE(reg, temp);
- /* Shouldn't happen */
- return 0;
-}
+ POSTING_READ(reg);
+ udelay(150);
-static int i830_get_display_clock_speed(struct drm_device *dev)
-{
- return 133000;
-}
+ for (i = 0; i < 4; i++ ) {
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
+ temp |= snb_b_fdi_train_param[i];
+ I915_WRITE(reg, temp);
-struct fdi_m_n {
- u32 tu;
- u32 gmch_m;
- u32 gmch_n;
- u32 link_m;
- u32 link_n;
-};
+ POSTING_READ(reg);
+ udelay(500);
-static void
-fdi_reduce_ratio(u32 *num, u32 *den)
-{
- while (*num > 0xffffff || *den > 0xffffff) {
- *num >>= 1;
- *den >>= 1;
+ reg = FDI_RX_IIR(pipe);
+ temp = I915_READ(reg);
+ DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
+
+ if (temp & FDI_RX_SYMBOL_LOCK) {
+ I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
+ DRM_DEBUG_KMS("FDI train 2 done.\n");
+ break;
+ }
}
+ if (i == 4)
+ DRM_ERROR("FDI train 2 fail!\n");
+
+ DRM_DEBUG_KMS("FDI train done.\n");
}
-static void
-ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock,
- int link_clock, struct fdi_m_n *m_n)
+static void ironlake_fdi_pll_enable(struct drm_crtc *crtc)
{
- m_n->tu = 64; /* default size */
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ u32 reg, temp;
- /* BUG_ON(pixel_clock > INT_MAX / 36); */
- m_n->gmch_m = bits_per_pixel * pixel_clock;
- m_n->gmch_n = link_clock * nlanes * 8;
- fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
+ /* Write the TU size bits so error detection works */
+ I915_WRITE(FDI_RX_TUSIZE1(pipe),
+ I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
- m_n->link_m = pixel_clock;
- m_n->link_n = link_clock;
- fdi_reduce_ratio(&m_n->link_m, &m_n->link_n);
-}
+ /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~((0x7 << 19) | (0x7 << 16));
+ temp |= (intel_crtc->fdi_lanes - 1) << 19;
+ temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
+ I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
+ POSTING_READ(reg);
+ udelay(200);
-struct intel_watermark_params {
- unsigned long fifo_size;
- unsigned long max_wm;
- unsigned long default_wm;
- unsigned long guard_size;
- unsigned long cacheline_size;
-};
+ /* Switch from Rawclk to PCDclk */
+ temp = I915_READ(reg);
+ I915_WRITE(reg, temp | FDI_PCDCLK);
-/* Pineview has different values for various configs */
-static struct intel_watermark_params pineview_display_wm = {
- PINEVIEW_DISPLAY_FIFO,
- PINEVIEW_MAX_WM,
- PINEVIEW_DFT_WM,
- PINEVIEW_GUARD_WM,
- PINEVIEW_FIFO_LINE_SIZE
-};
-static struct intel_watermark_params pineview_display_hplloff_wm = {
- PINEVIEW_DISPLAY_FIFO,
- PINEVIEW_MAX_WM,
- PINEVIEW_DFT_HPLLOFF_WM,
- PINEVIEW_GUARD_WM,
- PINEVIEW_FIFO_LINE_SIZE
-};
-static struct intel_watermark_params pineview_cursor_wm = {
- PINEVIEW_CURSOR_FIFO,
- PINEVIEW_CURSOR_MAX_WM,
- PINEVIEW_CURSOR_DFT_WM,
- PINEVIEW_CURSOR_GUARD_WM,
- PINEVIEW_FIFO_LINE_SIZE,
-};
-static struct intel_watermark_params pineview_cursor_hplloff_wm = {
- PINEVIEW_CURSOR_FIFO,
- PINEVIEW_CURSOR_MAX_WM,
- PINEVIEW_CURSOR_DFT_WM,
- PINEVIEW_CURSOR_GUARD_WM,
- PINEVIEW_FIFO_LINE_SIZE
-};
-static struct intel_watermark_params g4x_wm_info = {
- G4X_FIFO_SIZE,
- G4X_MAX_WM,
- G4X_MAX_WM,
- 2,
- G4X_FIFO_LINE_SIZE,
-};
-static struct intel_watermark_params g4x_cursor_wm_info = {
- I965_CURSOR_FIFO,
- I965_CURSOR_MAX_WM,
- I965_CURSOR_DFT_WM,
- 2,
- G4X_FIFO_LINE_SIZE,
-};
-static struct intel_watermark_params i965_cursor_wm_info = {
- I965_CURSOR_FIFO,
- I965_CURSOR_MAX_WM,
- I965_CURSOR_DFT_WM,
- 2,
- I915_FIFO_LINE_SIZE,
-};
-static struct intel_watermark_params i945_wm_info = {
- I945_FIFO_SIZE,
- I915_MAX_WM,
- 1,
- 2,
- I915_FIFO_LINE_SIZE
-};
-static struct intel_watermark_params i915_wm_info = {
- I915_FIFO_SIZE,
- I915_MAX_WM,
- 1,
- 2,
- I915_FIFO_LINE_SIZE
-};
-static struct intel_watermark_params i855_wm_info = {
- I855GM_FIFO_SIZE,
- I915_MAX_WM,
- 1,
- 2,
- I830_FIFO_LINE_SIZE
-};
-static struct intel_watermark_params i830_wm_info = {
- I830_FIFO_SIZE,
- I915_MAX_WM,
- 1,
- 2,
- I830_FIFO_LINE_SIZE
-};
+ POSTING_READ(reg);
+ udelay(200);
-static struct intel_watermark_params ironlake_display_wm_info = {
- ILK_DISPLAY_FIFO,
- ILK_DISPLAY_MAXWM,
- ILK_DISPLAY_DFTWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
+ /* Enable CPU FDI TX PLL, always on for Ironlake */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ if ((temp & FDI_TX_PLL_ENABLE) == 0) {
+ I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
-static struct intel_watermark_params ironlake_cursor_wm_info = {
- ILK_CURSOR_FIFO,
- ILK_CURSOR_MAXWM,
- ILK_CURSOR_DFTWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
+ POSTING_READ(reg);
+ udelay(100);
+ }
+}
-static struct intel_watermark_params ironlake_display_srwm_info = {
- ILK_DISPLAY_SR_FIFO,
- ILK_DISPLAY_MAX_SRWM,
- ILK_DISPLAY_DFT_SRWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
+static void ironlake_fdi_disable(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ u32 reg, temp;
-static struct intel_watermark_params ironlake_cursor_srwm_info = {
- ILK_CURSOR_SR_FIFO,
- ILK_CURSOR_MAX_SRWM,
- ILK_CURSOR_DFT_SRWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
+ /* disable CPU FDI tx and PCH FDI rx */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
+ POSTING_READ(reg);
-static struct intel_watermark_params sandybridge_display_wm_info = {
- SNB_DISPLAY_FIFO,
- SNB_DISPLAY_MAXWM,
- SNB_DISPLAY_DFTWM,
- 2,
- SNB_FIFO_LINE_SIZE
-};
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~(0x7 << 16);
+ temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
+ I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
-static struct intel_watermark_params sandybridge_cursor_wm_info = {
- SNB_CURSOR_FIFO,
- SNB_CURSOR_MAXWM,
- SNB_CURSOR_DFTWM,
- 2,
- SNB_FIFO_LINE_SIZE
-};
+ POSTING_READ(reg);
+ udelay(100);
-static struct intel_watermark_params sandybridge_display_srwm_info = {
- SNB_DISPLAY_SR_FIFO,
- SNB_DISPLAY_MAX_SRWM,
- SNB_DISPLAY_DFT_SRWM,
- 2,
- SNB_FIFO_LINE_SIZE
-};
+ /* Ironlake workaround, disable clock pointer after downing FDI */
+ if (HAS_PCH_IBX(dev)) {
+ I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
+ I915_WRITE(FDI_RX_CHICKEN(pipe),
+ I915_READ(FDI_RX_CHICKEN(pipe) &
+ ~FDI_RX_PHASE_SYNC_POINTER_EN));
+ }
-static struct intel_watermark_params sandybridge_cursor_srwm_info = {
- SNB_CURSOR_SR_FIFO,
- SNB_CURSOR_MAX_SRWM,
- SNB_CURSOR_DFT_SRWM,
- 2,
- SNB_FIFO_LINE_SIZE
-};
+ /* still set train pattern 1 */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ I915_WRITE(reg, temp);
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ if (HAS_PCH_CPT(dev)) {
+ temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+ temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_PATTERN_1;
+ }
+ /* BPC in FDI rx is consistent with that in PIPECONF */
+ temp &= ~(0x07 << 16);
+ temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11;
+ I915_WRITE(reg, temp);
-/**
- * intel_calculate_wm - calculate watermark level
- * @clock_in_khz: pixel clock
- * @wm: chip FIFO params
- * @pixel_size: display pixel size
- * @latency_ns: memory latency for the platform
- *
- * Calculate the watermark level (the level at which the display plane will
- * start fetching from memory again). Each chip has a different display
- * FIFO size and allocation, so the caller needs to figure that out and pass
- * in the correct intel_watermark_params structure.
- *
- * As the pixel clock runs, the FIFO will be drained at a rate that depends
- * on the pixel size. When it reaches the watermark level, it'll start
- * fetching FIFO line sized based chunks from memory until the FIFO fills
- * past the watermark point. If the FIFO drains completely, a FIFO underrun
- * will occur, and a display engine hang could result.
+ POSTING_READ(reg);
+ udelay(100);
+}
+
+/*
+ * When we disable a pipe, we need to clear any pending scanline wait events
+ * to avoid hanging the ring, which we assume we are waiting on.
*/
-static unsigned long intel_calculate_wm(unsigned long clock_in_khz,
- struct intel_watermark_params *wm,
- int pixel_size,
- unsigned long latency_ns)
+static void intel_clear_scanline_wait(struct drm_device *dev)
{
- long entries_required, wm_size;
-
- /*
- * Note: we need to make sure we don't overflow for various clock &
- * latency values.
- * clocks go from a few thousand to several hundred thousand.
- * latency is usually a few thousand
- */
- entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) /
- 1000;
- entries_required = DIV_ROUND_UP(entries_required, wm->cacheline_size);
-
- DRM_DEBUG_KMS("FIFO entries required for mode: %d\n", entries_required);
-
- wm_size = wm->fifo_size - (entries_required + wm->guard_size);
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring;
+ u32 tmp;
- DRM_DEBUG_KMS("FIFO watermark level: %d\n", wm_size);
+ if (IS_GEN2(dev))
+ /* Can't break the hang on i8xx */
+ return;
- /* Don't promote wm_size to unsigned... */
- if (wm_size > (long)wm->max_wm)
- wm_size = wm->max_wm;
- if (wm_size <= 0)
- wm_size = wm->default_wm;
- return wm_size;
+ ring = LP_RING(dev_priv);
+ tmp = I915_READ_CTL(ring);
+ if (tmp & RING_WAIT)
+ I915_WRITE_CTL(ring, tmp);
}
-struct cxsr_latency {
- int is_desktop;
- int is_ddr3;
- unsigned long fsb_freq;
- unsigned long mem_freq;
- unsigned long display_sr;
- unsigned long display_hpll_disable;
- unsigned long cursor_sr;
- unsigned long cursor_hpll_disable;
-};
-
-static const struct cxsr_latency cxsr_latency_table[] = {
- {1, 0, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */
- {1, 0, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */
- {1, 0, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */
- {1, 1, 800, 667, 6420, 36420, 6873, 36873}, /* DDR3-667 SC */
- {1, 1, 800, 800, 5902, 35902, 6318, 36318}, /* DDR3-800 SC */
-
- {1, 0, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */
- {1, 0, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */
- {1, 0, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */
- {1, 1, 667, 667, 6438, 36438, 6911, 36911}, /* DDR3-667 SC */
- {1, 1, 667, 800, 5941, 35941, 6377, 36377}, /* DDR3-800 SC */
-
- {1, 0, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */
- {1, 0, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */
- {1, 0, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */
- {1, 1, 400, 667, 6509, 36509, 7062, 37062}, /* DDR3-667 SC */
- {1, 1, 400, 800, 5985, 35985, 6501, 36501}, /* DDR3-800 SC */
-
- {0, 0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */
- {0, 0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */
- {0, 0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */
- {0, 1, 800, 667, 6476, 36476, 6955, 36955}, /* DDR3-667 SC */
- {0, 1, 800, 800, 5958, 35958, 6400, 36400}, /* DDR3-800 SC */
+static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
+{
+ struct drm_i915_gem_object *obj;
+ struct drm_i915_private *dev_priv;
- {0, 0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */
- {0, 0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */
- {0, 0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */
- {0, 1, 667, 667, 6494, 36494, 6993, 36993}, /* DDR3-667 SC */
- {0, 1, 667, 800, 5998, 35998, 6460, 36460}, /* DDR3-800 SC */
+ if (crtc->fb == NULL)
+ return;
- {0, 0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */
- {0, 0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */
- {0, 0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */
- {0, 1, 400, 667, 6566, 36566, 7145, 37145}, /* DDR3-667 SC */
- {0, 1, 400, 800, 6042, 36042, 6584, 36584}, /* DDR3-800 SC */
-};
+ obj = to_intel_framebuffer(crtc->fb)->obj;
+ dev_priv = crtc->dev->dev_private;
+ wait_event(dev_priv->pending_flip_queue,
+ atomic_read(&obj->pending_flip) == 0);
+}
-static const struct cxsr_latency *intel_get_cxsr_latency(int is_desktop,
- int is_ddr3,
- int fsb,
- int mem)
+static bool intel_crtc_driving_pch(struct drm_crtc *crtc)
{
- const struct cxsr_latency *latency;
- int i;
+ struct drm_device *dev = crtc->dev;
+ struct drm_mode_config *mode_config = &dev->mode_config;
+ struct intel_encoder *encoder;
- if (fsb == 0 || mem == 0)
- return NULL;
+ /*
+ * If there's a non-PCH eDP on this crtc, it must be DP_A, and that
+ * must be driven by its own crtc; no sharing is possible.
+ */
+ list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
+ if (encoder->base.crtc != crtc)
+ continue;
- for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) {
- latency = &cxsr_latency_table[i];
- if (is_desktop == latency->is_desktop &&
- is_ddr3 == latency->is_ddr3 &&
- fsb == latency->fsb_freq && mem == latency->mem_freq)
- return latency;
+ switch (encoder->type) {
+ case INTEL_OUTPUT_EDP:
+ if (!intel_encoder_is_pch_edp(&encoder->base))
+ return false;
+ continue;
+ }
}
- DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n");
-
- return NULL;
-}
-
-static void pineview_disable_cxsr(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- /* deactivate cxsr */
- I915_WRITE(DSPFW3, I915_READ(DSPFW3) & ~PINEVIEW_SELF_REFRESH_EN);
+ return true;
}
/*
- * Latency for FIFO fetches is dependent on several factors:
- * - memory configuration (speed, channels)
- * - chipset
- * - current MCH state
- * It can be fairly high in some situations, so here we assume a fairly
- * pessimal value. It's a tradeoff between extra memory fetches (if we
- * set this value too high, the FIFO will fetch frequently to stay full)
- * and power consumption (set it too low to save power and we might see
- * FIFO underruns and display "flicker").
- *
- * A value of 5us seems to be a good balance; safe for very low end
- * platforms but not overly aggressive on lower latency configs.
+ * Enable PCH resources required for PCH ports:
+ * - PCH PLLs
+ * - FDI training & RX/TX
+ * - update transcoder timings
+ * - DP transcoding bits
+ * - transcoder
*/
-static const int latency_ns = 5000;
-
-static int i9xx_get_fifo_size(struct drm_device *dev, int plane)
+static void ironlake_pch_enable(struct drm_crtc *crtc)
{
+ struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t dsparb = I915_READ(DSPARB);
- int size;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ u32 reg, temp;
- size = dsparb & 0x7f;
- if (plane)
- size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - size;
+ /* For PCH output, training FDI link */
+ dev_priv->display.fdi_link_train(crtc);
- DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
- plane ? "B" : "A", size);
+ intel_enable_pch_pll(dev_priv, pipe);
- return size;
-}
+ if (HAS_PCH_CPT(dev)) {
+ /* Be sure PCH DPLL SEL is set */
+ temp = I915_READ(PCH_DPLL_SEL);
+ if (pipe == 0 && (temp & TRANSA_DPLL_ENABLE) == 0)
+ temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL);
+ else if (pipe == 1 && (temp & TRANSB_DPLL_ENABLE) == 0)
+ temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
+ I915_WRITE(PCH_DPLL_SEL, temp);
+ }
-static int i85x_get_fifo_size(struct drm_device *dev, int plane)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t dsparb = I915_READ(DSPARB);
- int size;
+ /* set transcoder timing, panel must allow it */
+ assert_panel_unlocked(dev_priv, pipe);
+ I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe)));
+ I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe)));
+ I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe)));
- size = dsparb & 0x1ff;
- if (plane)
- size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - size;
- size >>= 1; /* Convert to cachelines */
+ I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe)));
+ I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe)));
+ I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe)));
- DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
- plane ? "B" : "A", size);
+ intel_fdi_normal_train(crtc);
- return size;
-}
+ /* For PCH DP, enable TRANS_DP_CTL */
+ if (HAS_PCH_CPT(dev) &&
+ intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
+ reg = TRANS_DP_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~(TRANS_DP_PORT_SEL_MASK |
+ TRANS_DP_SYNC_MASK |
+ TRANS_DP_BPC_MASK);
+ temp |= (TRANS_DP_OUTPUT_ENABLE |
+ TRANS_DP_ENH_FRAMING);
+ temp |= TRANS_DP_8BPC;
-static int i845_get_fifo_size(struct drm_device *dev, int plane)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t dsparb = I915_READ(DSPARB);
- int size;
+ if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
+ temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
+ if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
+ temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
- size = dsparb & 0x7f;
- size >>= 2; /* Convert to cachelines */
+ switch (intel_trans_dp_port_sel(crtc)) {
+ case PCH_DP_B:
+ temp |= TRANS_DP_PORT_SEL_B;
+ break;
+ case PCH_DP_C:
+ temp |= TRANS_DP_PORT_SEL_C;
+ break;
+ case PCH_DP_D:
+ temp |= TRANS_DP_PORT_SEL_D;
+ break;
+ default:
+ DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n");
+ temp |= TRANS_DP_PORT_SEL_B;
+ break;
+ }
- DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
- plane ? "B" : "A",
- size);
+ I915_WRITE(reg, temp);
+ }
- return size;
+ intel_enable_transcoder(dev_priv, pipe);
}
-static int i830_get_fifo_size(struct drm_device *dev, int plane)
+static void ironlake_crtc_enable(struct drm_crtc *crtc)
{
+ struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t dsparb = I915_READ(DSPARB);
- int size;
-
- size = dsparb & 0x7f;
- size >>= 1; /* Convert to cachelines */
-
- DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
- plane ? "B" : "A", size);
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int plane = intel_crtc->plane;
+ u32 temp;
+ bool is_pch_port;
- return size;
-}
+ if (intel_crtc->active)
+ return;
-static void pineview_update_wm(struct drm_device *dev, int planea_clock,
- int planeb_clock, int sr_hdisplay, int unused,
- int pixel_size)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- const struct cxsr_latency *latency;
- u32 reg;
- unsigned long wm;
- int sr_clock;
+ intel_crtc->active = true;
+ intel_update_watermarks(dev);
- latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->is_ddr3,
- dev_priv->fsb_freq, dev_priv->mem_freq);
- if (!latency) {
- DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n");
- pineview_disable_cxsr(dev);
- return;
+ if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
+ temp = I915_READ(PCH_LVDS);
+ if ((temp & LVDS_PORT_EN) == 0)
+ I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
}
- if (!planea_clock || !planeb_clock) {
- sr_clock = planea_clock ? planea_clock : planeb_clock;
+ is_pch_port = intel_crtc_driving_pch(crtc);
- /* Display SR */
- wm = intel_calculate_wm(sr_clock, &pineview_display_wm,
- pixel_size, latency->display_sr);
- reg = I915_READ(DSPFW1);
- reg &= ~DSPFW_SR_MASK;
- reg |= wm << DSPFW_SR_SHIFT;
- I915_WRITE(DSPFW1, reg);
- DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg);
+ if (is_pch_port)
+ ironlake_fdi_pll_enable(crtc);
+ else
+ ironlake_fdi_disable(crtc);
- /* cursor SR */
- wm = intel_calculate_wm(sr_clock, &pineview_cursor_wm,
- pixel_size, latency->cursor_sr);
- reg = I915_READ(DSPFW3);
- reg &= ~DSPFW_CURSOR_SR_MASK;
- reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT;
- I915_WRITE(DSPFW3, reg);
+ /* Enable panel fitting for LVDS */
+ if (dev_priv->pch_pf_size &&
+ (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) {
+ /* Force use of hard-coded filter coefficients
+ * as some pre-programmed values are broken,
+ * e.g. x201.
+ */
+ I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
+ I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
+ I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
+ }
- /* Display HPLL off SR */
- wm = intel_calculate_wm(sr_clock, &pineview_display_hplloff_wm,
- pixel_size, latency->display_hpll_disable);
- reg = I915_READ(DSPFW3);
- reg &= ~DSPFW_HPLL_SR_MASK;
- reg |= wm & DSPFW_HPLL_SR_MASK;
- I915_WRITE(DSPFW3, reg);
+ intel_enable_pipe(dev_priv, pipe, is_pch_port);
+ intel_enable_plane(dev_priv, plane, pipe);
- /* cursor HPLL off SR */
- wm = intel_calculate_wm(sr_clock, &pineview_cursor_hplloff_wm,
- pixel_size, latency->cursor_hpll_disable);
- reg = I915_READ(DSPFW3);
- reg &= ~DSPFW_HPLL_CURSOR_MASK;
- reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT;
- I915_WRITE(DSPFW3, reg);
- DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg);
+ if (is_pch_port)
+ ironlake_pch_enable(crtc);
- /* activate cxsr */
- I915_WRITE(DSPFW3,
- I915_READ(DSPFW3) | PINEVIEW_SELF_REFRESH_EN);
- DRM_DEBUG_KMS("Self-refresh is enabled\n");
- } else {
- pineview_disable_cxsr(dev);
- DRM_DEBUG_KMS("Self-refresh is disabled\n");
- }
+ intel_crtc_load_lut(crtc);
+
+ mutex_lock(&dev->struct_mutex);
+ intel_update_fbc(dev);
+ mutex_unlock(&dev->struct_mutex);
+
+ intel_crtc_update_cursor(crtc, true);
}
-static void g4x_update_wm(struct drm_device *dev, int planea_clock,
- int planeb_clock, int sr_hdisplay, int sr_htotal,
- int pixel_size)
+static void ironlake_crtc_disable(struct drm_crtc *crtc)
{
+ struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- int total_size, cacheline_size;
- int planea_wm, planeb_wm, cursora_wm, cursorb_wm, cursor_sr;
- struct intel_watermark_params planea_params, planeb_params;
- unsigned long line_time_us;
- int sr_clock, sr_entries = 0, entries_required;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int plane = intel_crtc->plane;
+ u32 reg, temp;
- /* Create copies of the base settings for each pipe */
- planea_params = planeb_params = g4x_wm_info;
+ if (!intel_crtc->active)
+ return;
- /* Grab a couple of global values before we overwrite them */
- total_size = planea_params.fifo_size;
- cacheline_size = planea_params.cacheline_size;
+ intel_crtc_wait_for_pending_flips(crtc);
+ drm_vblank_off(dev, pipe);
+ intel_crtc_update_cursor(crtc, false);
- /*
- * Note: we need to make sure we don't overflow for various clock &
- * latency values.
- * clocks go from a few thousand to several hundred thousand.
- * latency is usually a few thousand
- */
- entries_required = ((planea_clock / 1000) * pixel_size * latency_ns) /
- 1000;
- entries_required = DIV_ROUND_UP(entries_required, G4X_FIFO_LINE_SIZE);
- planea_wm = entries_required + planea_params.guard_size;
+ intel_disable_plane(dev_priv, plane, pipe);
- entries_required = ((planeb_clock / 1000) * pixel_size * latency_ns) /
- 1000;
- entries_required = DIV_ROUND_UP(entries_required, G4X_FIFO_LINE_SIZE);
- planeb_wm = entries_required + planeb_params.guard_size;
+ if (dev_priv->cfb_plane == plane &&
+ dev_priv->display.disable_fbc)
+ dev_priv->display.disable_fbc(dev);
- cursora_wm = cursorb_wm = 16;
- cursor_sr = 32;
+ intel_disable_pipe(dev_priv, pipe);
- DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm);
+ /* Disable PF */
+ I915_WRITE(PF_CTL(pipe), 0);
+ I915_WRITE(PF_WIN_SZ(pipe), 0);
- /* Calc sr entries for one plane configs */
- if (sr_hdisplay && (!planea_clock || !planeb_clock)) {
- /* self-refresh has much higher latency */
- static const int sr_latency_ns = 12000;
+ ironlake_fdi_disable(crtc);
- sr_clock = planea_clock ? planea_clock : planeb_clock;
- line_time_us = ((sr_htotal * 1000) / sr_clock);
+ /* This is a horrible layering violation; we should be doing this in
+ * the connector/encoder ->prepare instead, but we don't always have
+ * enough information there about the config to know whether it will
+ * actually be necessary or just cause undesired flicker.
+ */
+ intel_disable_pch_ports(dev_priv, pipe);
- /* Use ns/us then divide to preserve precision */
- sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
- pixel_size * sr_hdisplay;
- sr_entries = DIV_ROUND_UP(sr_entries, cacheline_size);
-
- entries_required = (((sr_latency_ns / line_time_us) +
- 1000) / 1000) * pixel_size * 64;
- entries_required = DIV_ROUND_UP(entries_required,
- g4x_cursor_wm_info.cacheline_size);
- cursor_sr = entries_required + g4x_cursor_wm_info.guard_size;
-
- if (cursor_sr > g4x_cursor_wm_info.max_wm)
- cursor_sr = g4x_cursor_wm_info.max_wm;
- DRM_DEBUG_KMS("self-refresh watermark: display plane %d "
- "cursor %d\n", sr_entries, cursor_sr);
+ intel_disable_transcoder(dev_priv, pipe);
- I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
- } else {
- /* Turn off self refresh if both pipes are enabled */
- I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF)
- & ~FW_BLC_SELF_EN);
+ if (HAS_PCH_CPT(dev)) {
+ /* disable TRANS_DP_CTL */
+ reg = TRANS_DP_CTL(pipe);
+ temp = I915_READ(reg);
+ temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
+ temp |= TRANS_DP_PORT_SEL_NONE;
+ I915_WRITE(reg, temp);
+
+ /* disable DPLL_SEL */
+ temp = I915_READ(PCH_DPLL_SEL);
+ switch (pipe) {
+ case 0:
+ temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL);
+ break;
+ case 1:
+ temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
+ break;
+ case 2:
+ /* FIXME: manage transcoder PLLs? */
+ temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
+ break;
+ default:
+ BUG(); /* wtf */
+ }
+ I915_WRITE(PCH_DPLL_SEL, temp);
}
- DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, SR %d\n",
- planea_wm, planeb_wm, sr_entries);
+ /* disable PCH DPLL */
+ intel_disable_pch_pll(dev_priv, pipe);
- planea_wm &= 0x3f;
- planeb_wm &= 0x3f;
+ /* Switch from PCDclk to Rawclk */
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ I915_WRITE(reg, temp & ~FDI_PCDCLK);
- I915_WRITE(DSPFW1, (sr_entries << DSPFW_SR_SHIFT) |
- (cursorb_wm << DSPFW_CURSORB_SHIFT) |
- (planeb_wm << DSPFW_PLANEB_SHIFT) | planea_wm);
- I915_WRITE(DSPFW2, (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) |
- (cursora_wm << DSPFW_CURSORA_SHIFT));
- /* HPLL off in SR has some issues on G4x... disable it */
- I915_WRITE(DSPFW3, (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) |
- (cursor_sr << DSPFW_CURSOR_SR_SHIFT));
-}
+ /* Disable CPU FDI TX PLL */
+ reg = FDI_TX_CTL(pipe);
+ temp = I915_READ(reg);
+ I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
-static void i965_update_wm(struct drm_device *dev, int planea_clock,
- int planeb_clock, int sr_hdisplay, int sr_htotal,
- int pixel_size)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long line_time_us;
- int sr_clock, sr_entries, srwm = 1;
- int cursor_sr = 16;
+ POSTING_READ(reg);
+ udelay(100);
- /* Calc sr entries for one plane configs */
- if (sr_hdisplay && (!planea_clock || !planeb_clock)) {
- /* self-refresh has much higher latency */
- static const int sr_latency_ns = 12000;
+ reg = FDI_RX_CTL(pipe);
+ temp = I915_READ(reg);
+ I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
- sr_clock = planea_clock ? planea_clock : planeb_clock;
- line_time_us = ((sr_htotal * 1000) / sr_clock);
+ /* Wait for the clocks to turn off. */
+ POSTING_READ(reg);
+ udelay(100);
- /* Use ns/us then divide to preserve precision */
- sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
- pixel_size * sr_hdisplay;
- sr_entries = DIV_ROUND_UP(sr_entries, I915_FIFO_LINE_SIZE);
- DRM_DEBUG("self-refresh entries: %d\n", sr_entries);
- srwm = I965_FIFO_SIZE - sr_entries;
- if (srwm < 0)
- srwm = 1;
- srwm &= 0x1ff;
+ intel_crtc->active = false;
+ intel_update_watermarks(dev);
- sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
- pixel_size * 64;
- sr_entries = DIV_ROUND_UP(sr_entries,
- i965_cursor_wm_info.cacheline_size);
- cursor_sr = i965_cursor_wm_info.fifo_size -
- (sr_entries + i965_cursor_wm_info.guard_size);
+ mutex_lock(&dev->struct_mutex);
+ intel_update_fbc(dev);
+ intel_clear_scanline_wait(dev);
+ mutex_unlock(&dev->struct_mutex);
+}
- if (cursor_sr > i965_cursor_wm_info.max_wm)
- cursor_sr = i965_cursor_wm_info.max_wm;
+static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int plane = intel_crtc->plane;
- DRM_DEBUG_KMS("self-refresh watermark: display plane %d "
- "cursor %d\n", srwm, cursor_sr);
+ /* XXX: When our outputs are all unaware of DPMS modes other than off
+ * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
+ */
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane);
+ ironlake_crtc_enable(crtc);
+ break;
- if (IS_CRESTLINE(dev))
- I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
- } else {
- /* Turn off self refresh if both pipes are enabled */
- if (IS_CRESTLINE(dev))
- I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF)
- & ~FW_BLC_SELF_EN);
+ case DRM_MODE_DPMS_OFF:
+ DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane);
+ ironlake_crtc_disable(crtc);
+ break;
}
+}
- DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n",
- srwm);
+static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
+{
+ if (!enable && intel_crtc->overlay) {
+ struct drm_device *dev = intel_crtc->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
- /* 965 has limitations... */
- I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) | (8 << 16) | (8 << 8) |
- (8 << 0));
- I915_WRITE(DSPFW2, (8 << 8) | (8 << 0));
- /* update cursor SR watermark */
- I915_WRITE(DSPFW3, (cursor_sr << DSPFW_CURSOR_SR_SHIFT));
+ mutex_lock(&dev->struct_mutex);
+ dev_priv->mm.interruptible = false;
+ (void) intel_overlay_switch_off(intel_crtc->overlay);
+ dev_priv->mm.interruptible = true;
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ /* Let userspace switch the overlay on again. In most cases userspace
+ * has to recompute where to put it anyway.
+ */
}
-static void i9xx_update_wm(struct drm_device *dev, int planea_clock,
- int planeb_clock, int sr_hdisplay, int sr_htotal,
- int pixel_size)
+static void i9xx_crtc_enable(struct drm_crtc *crtc)
{
+ struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t fwater_lo;
- uint32_t fwater_hi;
- int total_size, cacheline_size, cwm, srwm = 1;
- int planea_wm, planeb_wm;
- struct intel_watermark_params planea_params, planeb_params;
- unsigned long line_time_us;
- int sr_clock, sr_entries = 0;
-
- /* Create copies of the base settings for each pipe */
- if (IS_CRESTLINE(dev) || IS_I945GM(dev))
- planea_params = planeb_params = i945_wm_info;
- else if (!IS_GEN2(dev))
- planea_params = planeb_params = i915_wm_info;
- else
- planea_params = planeb_params = i855_wm_info;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int plane = intel_crtc->plane;
- /* Grab a couple of global values before we overwrite them */
- total_size = planea_params.fifo_size;
- cacheline_size = planea_params.cacheline_size;
+ if (intel_crtc->active)
+ return;
- /* Update per-plane FIFO sizes */
- planea_params.fifo_size = dev_priv->display.get_fifo_size(dev, 0);
- planeb_params.fifo_size = dev_priv->display.get_fifo_size(dev, 1);
+ intel_crtc->active = true;
+ intel_update_watermarks(dev);
- planea_wm = intel_calculate_wm(planea_clock, &planea_params,
- pixel_size, latency_ns);
- planeb_wm = intel_calculate_wm(planeb_clock, &planeb_params,
- pixel_size, latency_ns);
- DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm);
+ intel_enable_pll(dev_priv, pipe);
+ intel_enable_pipe(dev_priv, pipe, false);
+ intel_enable_plane(dev_priv, plane, pipe);
- /*
- * Overlay gets an aggressive default since video jitter is bad.
- */
- cwm = 2;
+ intel_crtc_load_lut(crtc);
+ intel_update_fbc(dev);
- /* Calc sr entries for one plane configs */
- if (HAS_FW_BLC(dev) && sr_hdisplay &&
- (!planea_clock || !planeb_clock)) {
- /* self-refresh has much higher latency */
- static const int sr_latency_ns = 6000;
+ /* Give the overlay scaler a chance to enable if it's on this pipe */
+ intel_crtc_dpms_overlay(intel_crtc, true);
+ intel_crtc_update_cursor(crtc, true);
+}
- sr_clock = planea_clock ? planea_clock : planeb_clock;
- line_time_us = ((sr_htotal * 1000) / sr_clock);
+static void i9xx_crtc_disable(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int plane = intel_crtc->plane;
- /* Use ns/us then divide to preserve precision */
- sr_entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
- pixel_size * sr_hdisplay;
- sr_entries = DIV_ROUND_UP(sr_entries, cacheline_size);
- DRM_DEBUG_KMS("self-refresh entries: %d\n", sr_entries);
- srwm = total_size - sr_entries;
- if (srwm < 0)
- srwm = 1;
+ if (!intel_crtc->active)
+ return;
- if (IS_I945G(dev) || IS_I945GM(dev))
- I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_FIFO_MASK | (srwm & 0xff));
- else if (IS_I915GM(dev)) {
- /* 915M has a smaller SRWM field */
- I915_WRITE(FW_BLC_SELF, srwm & 0x3f);
- I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN);
- }
- } else {
- /* Turn off self refresh if both pipes are enabled */
- if (IS_I945G(dev) || IS_I945GM(dev)) {
- I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF)
- & ~FW_BLC_SELF_EN);
- } else if (IS_I915GM(dev)) {
- I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN);
- }
- }
+ /* Give the overlay scaler a chance to disable if it's on this pipe */
+ intel_crtc_wait_for_pending_flips(crtc);
+ drm_vblank_off(dev, pipe);
+ intel_crtc_dpms_overlay(intel_crtc, false);
+ intel_crtc_update_cursor(crtc, false);
- DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n",
- planea_wm, planeb_wm, cwm, srwm);
+ if (dev_priv->cfb_plane == plane &&
+ dev_priv->display.disable_fbc)
+ dev_priv->display.disable_fbc(dev);
- fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f);
- fwater_hi = (cwm & 0x1f);
+ intel_disable_plane(dev_priv, plane, pipe);
+ intel_disable_pipe(dev_priv, pipe);
+ intel_disable_pll(dev_priv, pipe);
- /* Set request length to 8 cachelines per fetch */
- fwater_lo = fwater_lo | (1 << 24) | (1 << 8);
- fwater_hi = fwater_hi | (1 << 8);
+ intel_crtc->active = false;
+ intel_update_fbc(dev);
+ intel_update_watermarks(dev);
+ intel_clear_scanline_wait(dev);
+}
- I915_WRITE(FW_BLC, fwater_lo);
- I915_WRITE(FW_BLC2, fwater_hi);
+static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ /* XXX: When our outputs are all unaware of DPMS modes other than off
+ * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
+ */
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ i9xx_crtc_enable(crtc);
+ break;
+ case DRM_MODE_DPMS_OFF:
+ i9xx_crtc_disable(crtc);
+ break;
+ }
}
-static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused,
- int unused2, int unused3, int pixel_size)
+/**
+ * Sets the power management mode of the pipe and plane.
+ */
+static void intel_crtc_dpms(struct drm_crtc *crtc, int mode)
{
+ struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t fwater_lo = I915_READ(FW_BLC) & ~0xfff;
- int planea_wm;
-
- i830_wm_info.fifo_size = dev_priv->display.get_fifo_size(dev, 0);
+ struct drm_i915_master_private *master_priv;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ bool enabled;
- planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info,
- pixel_size, latency_ns);
- fwater_lo |= (3<<8) | planea_wm;
+ if (intel_crtc->dpms_mode == mode)
+ return;
- DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm);
+ intel_crtc->dpms_mode = mode;
- I915_WRITE(FW_BLC, fwater_lo);
-}
+ dev_priv->display.dpms(crtc, mode);
-#define ILK_LP0_PLANE_LATENCY 700
-#define ILK_LP0_CURSOR_LATENCY 1300
+ if (!dev->primary->master)
+ return;
-static bool ironlake_compute_wm0(struct drm_device *dev,
- int pipe,
- const struct intel_watermark_params *display,
- int display_latency_ns,
- const struct intel_watermark_params *cursor,
- int cursor_latency_ns,
- int *plane_wm,
- int *cursor_wm)
-{
- struct drm_crtc *crtc;
- int htotal, hdisplay, clock, pixel_size = 0;
- int line_time_us, line_count, entries;
+ master_priv = dev->primary->master->driver_priv;
+ if (!master_priv->sarea_priv)
+ return;
- crtc = intel_get_crtc_for_pipe(dev, pipe);
- if (crtc->fb == NULL || !crtc->enabled)
- return false;
+ enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
- htotal = crtc->mode.htotal;
- hdisplay = crtc->mode.hdisplay;
- clock = crtc->mode.clock;
- pixel_size = crtc->fb->bits_per_pixel / 8;
+ switch (pipe) {
+ case 0:
+ master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
+ master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
+ break;
+ case 1:
+ master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
+ master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
+ break;
+ default:
+ DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
+ break;
+ }
+}
- /* Use the small buffer method to calculate plane watermark */
- entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000;
- entries = DIV_ROUND_UP(entries, display->cacheline_size);
- *plane_wm = entries + display->guard_size;
- if (*plane_wm > (int)display->max_wm)
- *plane_wm = display->max_wm;
+static void intel_crtc_disable(struct drm_crtc *crtc)
+{
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ struct drm_device *dev = crtc->dev;
- /* Use the large buffer method to calculate cursor watermark */
- line_time_us = ((htotal * 1000) / clock);
- line_count = (cursor_latency_ns / line_time_us + 1000) / 1000;
- entries = line_count * 64 * pixel_size;
- entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
- *cursor_wm = entries + cursor->guard_size;
- if (*cursor_wm > (int)cursor->max_wm)
- *cursor_wm = (int)cursor->max_wm;
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
- return true;
+ if (crtc->fb) {
+ mutex_lock(&dev->struct_mutex);
+ i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
+ mutex_unlock(&dev->struct_mutex);
+ }
}
-/*
- * Check the wm result.
+/* Prepare for a mode set.
*
- * If any calculated watermark values is larger than the maximum value that
- * can be programmed into the associated watermark register, that watermark
- * must be disabled.
+ * Note we could be a lot smarter here. We need to figure out which outputs
+ * will be enabled, which disabled (in short, how the config will changes)
+ * and perform the minimum necessary steps to accomplish that, e.g. updating
+ * watermarks, FBC configuration, making sure PLLs are programmed correctly,
+ * panel fitting is in the proper state, etc.
*/
-static bool ironlake_check_srwm(struct drm_device *dev, int level,
- int fbc_wm, int display_wm, int cursor_wm,
- const struct intel_watermark_params *display,
- const struct intel_watermark_params *cursor)
+static void i9xx_crtc_prepare(struct drm_crtc *crtc)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ i9xx_crtc_disable(crtc);
+}
- DRM_DEBUG_KMS("watermark %d: display plane %d, fbc lines %d,"
- " cursor %d\n", level, display_wm, fbc_wm, cursor_wm);
+static void i9xx_crtc_commit(struct drm_crtc *crtc)
+{
+ i9xx_crtc_enable(crtc);
+}
- if (fbc_wm > SNB_FBC_MAX_SRWM) {
- DRM_DEBUG_KMS("fbc watermark(%d) is too large(%d), disabling wm%d+\n",
- fbc_wm, SNB_FBC_MAX_SRWM, level);
+static void ironlake_crtc_prepare(struct drm_crtc *crtc)
+{
+ ironlake_crtc_disable(crtc);
+}
- /* fbc has it's own way to disable FBC WM */
- I915_WRITE(DISP_ARB_CTL,
- I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS);
- return false;
- }
+static void ironlake_crtc_commit(struct drm_crtc *crtc)
+{
+ ironlake_crtc_enable(crtc);
+}
- if (display_wm > display->max_wm) {
- DRM_DEBUG_KMS("display watermark(%d) is too large(%d), disabling wm%d+\n",
- display_wm, SNB_DISPLAY_MAX_SRWM, level);
- return false;
- }
+void intel_encoder_prepare (struct drm_encoder *encoder)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+ /* lvds has its own version of prepare see intel_lvds_prepare */
+ encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
+}
- if (cursor_wm > cursor->max_wm) {
- DRM_DEBUG_KMS("cursor watermark(%d) is too large(%d), disabling wm%d+\n",
- cursor_wm, SNB_CURSOR_MAX_SRWM, level);
- return false;
- }
+void intel_encoder_commit (struct drm_encoder *encoder)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+ /* lvds has its own version of commit see intel_lvds_commit */
+ encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+}
- if (!(fbc_wm || display_wm || cursor_wm)) {
- DRM_DEBUG_KMS("latency %d is 0, disabling wm%d+\n", level, level);
- return false;
- }
+void intel_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
- return true;
+ drm_encoder_cleanup(encoder);
+ kfree(intel_encoder);
}
-/*
- * Compute watermark values of WM[1-3],
- */
-static bool ironlake_compute_srwm(struct drm_device *dev, int level,
- int hdisplay, int htotal,
- int pixel_size, int clock, int latency_ns,
- const struct intel_watermark_params *display,
- const struct intel_watermark_params *cursor,
- int *fbc_wm, int *display_wm, int *cursor_wm)
+static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
{
+ struct drm_device *dev = crtc->dev;
- unsigned long line_time_us;
- int line_count, line_size;
- int small, large;
- int entries;
-
- if (!latency_ns) {
- *fbc_wm = *display_wm = *cursor_wm = 0;
- return false;
+ if (HAS_PCH_SPLIT(dev)) {
+ /* FDI link clock is fixed at 2.7G */
+ if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
+ return false;
}
- line_time_us = (htotal * 1000) / clock;
- line_count = (latency_ns / line_time_us + 1000) / 1000;
- line_size = hdisplay * pixel_size;
-
- /* Use the minimum of the small and large buffer method for primary */
- small = ((clock * pixel_size / 1000) * latency_ns) / 1000;
- large = line_count * line_size;
-
- entries = DIV_ROUND_UP(min(small, large), display->cacheline_size);
- *display_wm = entries + display->guard_size;
-
- /*
- * Spec says:
- * FBC WM = ((Final Primary WM * 64) / number of bytes per line) + 2
+ /* XXX some encoders set the crtcinfo, others don't.
+ * Obviously we need some form of conflict resolution here...
*/
- *fbc_wm = DIV_ROUND_UP(*display_wm * 64, line_size) + 2;
-
- /* calculate the self-refresh watermark for display cursor */
- entries = line_count * pixel_size * 64;
- entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
- *cursor_wm = entries + cursor->guard_size;
+ if (adjusted_mode->crtc_htotal == 0)
+ drm_mode_set_crtcinfo(adjusted_mode, 0);
- return ironlake_check_srwm(dev, level,
- *fbc_wm, *display_wm, *cursor_wm,
- display, cursor);
+ return true;
}
-static void ironlake_update_wm(struct drm_device *dev,
- int planea_clock, int planeb_clock,
- int hdisplay, int htotal,
- int pixel_size)
+static int i945_get_display_clock_speed(struct drm_device *dev)
+{
+ return 400000;
+}
+
+static int i915_get_display_clock_speed(struct drm_device *dev)
+{
+ return 333000;
+}
+
+static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
+{
+ return 200000;
+}
+
+static int i915gm_get_display_clock_speed(struct drm_device *dev)
+{
+ u16 gcfgc = 0;
+
+ pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
+
+ if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
+ return 133000;
+ else {
+ switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
+ case GC_DISPLAY_CLOCK_333_MHZ:
+ return 333000;
+ default:
+ case GC_DISPLAY_CLOCK_190_200_MHZ:
+ return 190000;
+ }
+ }
+}
+
+static int i865_get_display_clock_speed(struct drm_device *dev)
+{
+ return 266000;
+}
+
+static int i855_get_display_clock_speed(struct drm_device *dev)
+{
+ u16 hpllcc = 0;
+ /* Assume that the hardware is in the high speed state. This
+ * should be the default.
+ */
+ switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
+ case GC_CLOCK_133_200:
+ case GC_CLOCK_100_200:
+ return 200000;
+ case GC_CLOCK_166_250:
+ return 250000;
+ case GC_CLOCK_100_133:
+ return 133000;
+ }
+
+ /* Shouldn't happen */
+ return 0;
+}
+
+static int i830_get_display_clock_speed(struct drm_device *dev)
+{
+ return 133000;
+}
+
+struct fdi_m_n {
+ u32 tu;
+ u32 gmch_m;
+ u32 gmch_n;
+ u32 link_m;
+ u32 link_n;
+};
+
+static void
+fdi_reduce_ratio(u32 *num, u32 *den)
+{
+ while (*num > 0xffffff || *den > 0xffffff) {
+ *num >>= 1;
+ *den >>= 1;
+ }
+}
+
+static void
+ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock,
+ int link_clock, struct fdi_m_n *m_n)
+{
+ m_n->tu = 64; /* default size */
+
+ /* BUG_ON(pixel_clock > INT_MAX / 36); */
+ m_n->gmch_m = bits_per_pixel * pixel_clock;
+ m_n->gmch_n = link_clock * nlanes * 8;
+ fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
+
+ m_n->link_m = pixel_clock;
+ m_n->link_n = link_clock;
+ fdi_reduce_ratio(&m_n->link_m, &m_n->link_n);
+}
+
+
+struct intel_watermark_params {
+ unsigned long fifo_size;
+ unsigned long max_wm;
+ unsigned long default_wm;
+ unsigned long guard_size;
+ unsigned long cacheline_size;
+};
+
+/* Pineview has different values for various configs */
+static const struct intel_watermark_params pineview_display_wm = {
+ PINEVIEW_DISPLAY_FIFO,
+ PINEVIEW_MAX_WM,
+ PINEVIEW_DFT_WM,
+ PINEVIEW_GUARD_WM,
+ PINEVIEW_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params pineview_display_hplloff_wm = {
+ PINEVIEW_DISPLAY_FIFO,
+ PINEVIEW_MAX_WM,
+ PINEVIEW_DFT_HPLLOFF_WM,
+ PINEVIEW_GUARD_WM,
+ PINEVIEW_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params pineview_cursor_wm = {
+ PINEVIEW_CURSOR_FIFO,
+ PINEVIEW_CURSOR_MAX_WM,
+ PINEVIEW_CURSOR_DFT_WM,
+ PINEVIEW_CURSOR_GUARD_WM,
+ PINEVIEW_FIFO_LINE_SIZE,
+};
+static const struct intel_watermark_params pineview_cursor_hplloff_wm = {
+ PINEVIEW_CURSOR_FIFO,
+ PINEVIEW_CURSOR_MAX_WM,
+ PINEVIEW_CURSOR_DFT_WM,
+ PINEVIEW_CURSOR_GUARD_WM,
+ PINEVIEW_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params g4x_wm_info = {
+ G4X_FIFO_SIZE,
+ G4X_MAX_WM,
+ G4X_MAX_WM,
+ 2,
+ G4X_FIFO_LINE_SIZE,
+};
+static const struct intel_watermark_params g4x_cursor_wm_info = {
+ I965_CURSOR_FIFO,
+ I965_CURSOR_MAX_WM,
+ I965_CURSOR_DFT_WM,
+ 2,
+ G4X_FIFO_LINE_SIZE,
+};
+static const struct intel_watermark_params i965_cursor_wm_info = {
+ I965_CURSOR_FIFO,
+ I965_CURSOR_MAX_WM,
+ I965_CURSOR_DFT_WM,
+ 2,
+ I915_FIFO_LINE_SIZE,
+};
+static const struct intel_watermark_params i945_wm_info = {
+ I945_FIFO_SIZE,
+ I915_MAX_WM,
+ 1,
+ 2,
+ I915_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params i915_wm_info = {
+ I915_FIFO_SIZE,
+ I915_MAX_WM,
+ 1,
+ 2,
+ I915_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params i855_wm_info = {
+ I855GM_FIFO_SIZE,
+ I915_MAX_WM,
+ 1,
+ 2,
+ I830_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params i830_wm_info = {
+ I830_FIFO_SIZE,
+ I915_MAX_WM,
+ 1,
+ 2,
+ I830_FIFO_LINE_SIZE
+};
+
+static const struct intel_watermark_params ironlake_display_wm_info = {
+ ILK_DISPLAY_FIFO,
+ ILK_DISPLAY_MAXWM,
+ ILK_DISPLAY_DFTWM,
+ 2,
+ ILK_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params ironlake_cursor_wm_info = {
+ ILK_CURSOR_FIFO,
+ ILK_CURSOR_MAXWM,
+ ILK_CURSOR_DFTWM,
+ 2,
+ ILK_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params ironlake_display_srwm_info = {
+ ILK_DISPLAY_SR_FIFO,
+ ILK_DISPLAY_MAX_SRWM,
+ ILK_DISPLAY_DFT_SRWM,
+ 2,
+ ILK_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params ironlake_cursor_srwm_info = {
+ ILK_CURSOR_SR_FIFO,
+ ILK_CURSOR_MAX_SRWM,
+ ILK_CURSOR_DFT_SRWM,
+ 2,
+ ILK_FIFO_LINE_SIZE
+};
+
+static const struct intel_watermark_params sandybridge_display_wm_info = {
+ SNB_DISPLAY_FIFO,
+ SNB_DISPLAY_MAXWM,
+ SNB_DISPLAY_DFTWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params sandybridge_cursor_wm_info = {
+ SNB_CURSOR_FIFO,
+ SNB_CURSOR_MAXWM,
+ SNB_CURSOR_DFTWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params sandybridge_display_srwm_info = {
+ SNB_DISPLAY_SR_FIFO,
+ SNB_DISPLAY_MAX_SRWM,
+ SNB_DISPLAY_DFT_SRWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+static const struct intel_watermark_params sandybridge_cursor_srwm_info = {
+ SNB_CURSOR_SR_FIFO,
+ SNB_CURSOR_MAX_SRWM,
+ SNB_CURSOR_DFT_SRWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+
+
+/**
+ * intel_calculate_wm - calculate watermark level
+ * @clock_in_khz: pixel clock
+ * @wm: chip FIFO params
+ * @pixel_size: display pixel size
+ * @latency_ns: memory latency for the platform
+ *
+ * Calculate the watermark level (the level at which the display plane will
+ * start fetching from memory again). Each chip has a different display
+ * FIFO size and allocation, so the caller needs to figure that out and pass
+ * in the correct intel_watermark_params structure.
+ *
+ * As the pixel clock runs, the FIFO will be drained at a rate that depends
+ * on the pixel size. When it reaches the watermark level, it'll start
+ * fetching FIFO line sized based chunks from memory until the FIFO fills
+ * past the watermark point. If the FIFO drains completely, a FIFO underrun
+ * will occur, and a display engine hang could result.
+ */
+static unsigned long intel_calculate_wm(unsigned long clock_in_khz,
+ const struct intel_watermark_params *wm,
+ int fifo_size,
+ int pixel_size,
+ unsigned long latency_ns)
+{
+ long entries_required, wm_size;
+
+ /*
+ * Note: we need to make sure we don't overflow for various clock &
+ * latency values.
+ * clocks go from a few thousand to several hundred thousand.
+ * latency is usually a few thousand
+ */
+ entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) /
+ 1000;
+ entries_required = DIV_ROUND_UP(entries_required, wm->cacheline_size);
+
+ DRM_DEBUG_KMS("FIFO entries required for mode: %ld\n", entries_required);
+
+ wm_size = fifo_size - (entries_required + wm->guard_size);
+
+ DRM_DEBUG_KMS("FIFO watermark level: %ld\n", wm_size);
+
+ /* Don't promote wm_size to unsigned... */
+ if (wm_size > (long)wm->max_wm)
+ wm_size = wm->max_wm;
+ if (wm_size <= 0)
+ wm_size = wm->default_wm;
+ return wm_size;
+}
+
+struct cxsr_latency {
+ int is_desktop;
+ int is_ddr3;
+ unsigned long fsb_freq;
+ unsigned long mem_freq;
+ unsigned long display_sr;
+ unsigned long display_hpll_disable;
+ unsigned long cursor_sr;
+ unsigned long cursor_hpll_disable;
+};
+
+static const struct cxsr_latency cxsr_latency_table[] = {
+ {1, 0, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */
+ {1, 0, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */
+ {1, 0, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */
+ {1, 1, 800, 667, 6420, 36420, 6873, 36873}, /* DDR3-667 SC */
+ {1, 1, 800, 800, 5902, 35902, 6318, 36318}, /* DDR3-800 SC */
+
+ {1, 0, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */
+ {1, 0, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */
+ {1, 0, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */
+ {1, 1, 667, 667, 6438, 36438, 6911, 36911}, /* DDR3-667 SC */
+ {1, 1, 667, 800, 5941, 35941, 6377, 36377}, /* DDR3-800 SC */
+
+ {1, 0, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */
+ {1, 0, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */
+ {1, 0, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */
+ {1, 1, 400, 667, 6509, 36509, 7062, 37062}, /* DDR3-667 SC */
+ {1, 1, 400, 800, 5985, 35985, 6501, 36501}, /* DDR3-800 SC */
+
+ {0, 0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */
+ {0, 0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */
+ {0, 0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */
+ {0, 1, 800, 667, 6476, 36476, 6955, 36955}, /* DDR3-667 SC */
+ {0, 1, 800, 800, 5958, 35958, 6400, 36400}, /* DDR3-800 SC */
+
+ {0, 0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */
+ {0, 0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */
+ {0, 0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */
+ {0, 1, 667, 667, 6494, 36494, 6993, 36993}, /* DDR3-667 SC */
+ {0, 1, 667, 800, 5998, 35998, 6460, 36460}, /* DDR3-800 SC */
+
+ {0, 0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */
+ {0, 0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */
+ {0, 0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */
+ {0, 1, 400, 667, 6566, 36566, 7145, 37145}, /* DDR3-667 SC */
+ {0, 1, 400, 800, 6042, 36042, 6584, 36584}, /* DDR3-800 SC */
+};
+
+static const struct cxsr_latency *intel_get_cxsr_latency(int is_desktop,
+ int is_ddr3,
+ int fsb,
+ int mem)
+{
+ const struct cxsr_latency *latency;
+ int i;
+
+ if (fsb == 0 || mem == 0)
+ return NULL;
+
+ for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) {
+ latency = &cxsr_latency_table[i];
+ if (is_desktop == latency->is_desktop &&
+ is_ddr3 == latency->is_ddr3 &&
+ fsb == latency->fsb_freq && mem == latency->mem_freq)
+ return latency;
+ }
+
+ DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n");
+
+ return NULL;
+}
+
+static void pineview_disable_cxsr(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /* deactivate cxsr */
+ I915_WRITE(DSPFW3, I915_READ(DSPFW3) & ~PINEVIEW_SELF_REFRESH_EN);
+}
+
+/*
+ * Latency for FIFO fetches is dependent on several factors:
+ * - memory configuration (speed, channels)
+ * - chipset
+ * - current MCH state
+ * It can be fairly high in some situations, so here we assume a fairly
+ * pessimal value. It's a tradeoff between extra memory fetches (if we
+ * set this value too high, the FIFO will fetch frequently to stay full)
+ * and power consumption (set it too low to save power and we might see
+ * FIFO underruns and display "flicker").
+ *
+ * A value of 5us seems to be a good balance; safe for very low end
+ * platforms but not overly aggressive on lower latency configs.
+ */
+static const int latency_ns = 5000;
+
+static int i9xx_get_fifo_size(struct drm_device *dev, int plane)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t dsparb = I915_READ(DSPARB);
+ int size;
+
+ size = dsparb & 0x7f;
+ if (plane)
+ size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - size;
+
+ DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
+ plane ? "B" : "A", size);
+
+ return size;
+}
+
+static int i85x_get_fifo_size(struct drm_device *dev, int plane)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t dsparb = I915_READ(DSPARB);
+ int size;
+
+ size = dsparb & 0x1ff;
+ if (plane)
+ size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - size;
+ size >>= 1; /* Convert to cachelines */
+
+ DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
+ plane ? "B" : "A", size);
+
+ return size;
+}
+
+static int i845_get_fifo_size(struct drm_device *dev, int plane)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t dsparb = I915_READ(DSPARB);
+ int size;
+
+ size = dsparb & 0x7f;
+ size >>= 2; /* Convert to cachelines */
+
+ DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
+ plane ? "B" : "A",
+ size);
+
+ return size;
+}
+
+static int i830_get_fifo_size(struct drm_device *dev, int plane)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t dsparb = I915_READ(DSPARB);
+ int size;
+
+ size = dsparb & 0x7f;
+ size >>= 1; /* Convert to cachelines */
+
+ DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
+ plane ? "B" : "A", size);
+
+ return size;
+}
+
+static struct drm_crtc *single_enabled_crtc(struct drm_device *dev)
+{
+ struct drm_crtc *crtc, *enabled = NULL;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc->enabled && crtc->fb) {
+ if (enabled)
+ return NULL;
+ enabled = crtc;
+ }
+ }
+
+ return enabled;
+}
+
+static void pineview_update_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_crtc *crtc;
+ const struct cxsr_latency *latency;
+ u32 reg;
+ unsigned long wm;
+
+ latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->is_ddr3,
+ dev_priv->fsb_freq, dev_priv->mem_freq);
+ if (!latency) {
+ DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n");
+ pineview_disable_cxsr(dev);
+ return;
+ }
+
+ crtc = single_enabled_crtc(dev);
+ if (crtc) {
+ int clock = crtc->mode.clock;
+ int pixel_size = crtc->fb->bits_per_pixel / 8;
+
+ /* Display SR */
+ wm = intel_calculate_wm(clock, &pineview_display_wm,
+ pineview_display_wm.fifo_size,
+ pixel_size, latency->display_sr);
+ reg = I915_READ(DSPFW1);
+ reg &= ~DSPFW_SR_MASK;
+ reg |= wm << DSPFW_SR_SHIFT;
+ I915_WRITE(DSPFW1, reg);
+ DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg);
+
+ /* cursor SR */
+ wm = intel_calculate_wm(clock, &pineview_cursor_wm,
+ pineview_display_wm.fifo_size,
+ pixel_size, latency->cursor_sr);
+ reg = I915_READ(DSPFW3);
+ reg &= ~DSPFW_CURSOR_SR_MASK;
+ reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT;
+ I915_WRITE(DSPFW3, reg);
+
+ /* Display HPLL off SR */
+ wm = intel_calculate_wm(clock, &pineview_display_hplloff_wm,
+ pineview_display_hplloff_wm.fifo_size,
+ pixel_size, latency->display_hpll_disable);
+ reg = I915_READ(DSPFW3);
+ reg &= ~DSPFW_HPLL_SR_MASK;
+ reg |= wm & DSPFW_HPLL_SR_MASK;
+ I915_WRITE(DSPFW3, reg);
+
+ /* cursor HPLL off SR */
+ wm = intel_calculate_wm(clock, &pineview_cursor_hplloff_wm,
+ pineview_display_hplloff_wm.fifo_size,
+ pixel_size, latency->cursor_hpll_disable);
+ reg = I915_READ(DSPFW3);
+ reg &= ~DSPFW_HPLL_CURSOR_MASK;
+ reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT;
+ I915_WRITE(DSPFW3, reg);
+ DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg);
+
+ /* activate cxsr */
+ I915_WRITE(DSPFW3,
+ I915_READ(DSPFW3) | PINEVIEW_SELF_REFRESH_EN);
+ DRM_DEBUG_KMS("Self-refresh is enabled\n");
+ } else {
+ pineview_disable_cxsr(dev);
+ DRM_DEBUG_KMS("Self-refresh is disabled\n");
+ }
+}
+
+static bool g4x_compute_wm0(struct drm_device *dev,
+ int plane,
+ const struct intel_watermark_params *display,
+ int display_latency_ns,
+ const struct intel_watermark_params *cursor,
+ int cursor_latency_ns,
+ int *plane_wm,
+ int *cursor_wm)
+{
+ struct drm_crtc *crtc;
+ int htotal, hdisplay, clock, pixel_size;
+ int line_time_us, line_count;
+ int entries, tlb_miss;
+
+ crtc = intel_get_crtc_for_plane(dev, plane);
+ if (crtc->fb == NULL || !crtc->enabled) {
+ *cursor_wm = cursor->guard_size;
+ *plane_wm = display->guard_size;
+ return false;
+ }
+
+ htotal = crtc->mode.htotal;
+ hdisplay = crtc->mode.hdisplay;
+ clock = crtc->mode.clock;
+ pixel_size = crtc->fb->bits_per_pixel / 8;
+
+ /* Use the small buffer method to calculate plane watermark */
+ entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000;
+ tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8;
+ if (tlb_miss > 0)
+ entries += tlb_miss;
+ entries = DIV_ROUND_UP(entries, display->cacheline_size);
+ *plane_wm = entries + display->guard_size;
+ if (*plane_wm > (int)display->max_wm)
+ *plane_wm = display->max_wm;
+
+ /* Use the large buffer method to calculate cursor watermark */
+ line_time_us = ((htotal * 1000) / clock);
+ line_count = (cursor_latency_ns / line_time_us + 1000) / 1000;
+ entries = line_count * 64 * pixel_size;
+ tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8;
+ if (tlb_miss > 0)
+ entries += tlb_miss;
+ entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
+ *cursor_wm = entries + cursor->guard_size;
+ if (*cursor_wm > (int)cursor->max_wm)
+ *cursor_wm = (int)cursor->max_wm;
+
+ return true;
+}
+
+/*
+ * Check the wm result.
+ *
+ * If any calculated watermark values is larger than the maximum value that
+ * can be programmed into the associated watermark register, that watermark
+ * must be disabled.
+ */
+static bool g4x_check_srwm(struct drm_device *dev,
+ int display_wm, int cursor_wm,
+ const struct intel_watermark_params *display,
+ const struct intel_watermark_params *cursor)
+{
+ DRM_DEBUG_KMS("SR watermark: display plane %d, cursor %d\n",
+ display_wm, cursor_wm);
+
+ if (display_wm > display->max_wm) {
+ DRM_DEBUG_KMS("display watermark is too large(%d/%ld), disabling\n",
+ display_wm, display->max_wm);
+ return false;
+ }
+
+ if (cursor_wm > cursor->max_wm) {
+ DRM_DEBUG_KMS("cursor watermark is too large(%d/%ld), disabling\n",
+ cursor_wm, cursor->max_wm);
+ return false;
+ }
+
+ if (!(display_wm || cursor_wm)) {
+ DRM_DEBUG_KMS("SR latency is 0, disabling\n");
+ return false;
+ }
+
+ return true;
+}
+
+static bool g4x_compute_srwm(struct drm_device *dev,
+ int plane,
+ int latency_ns,
+ const struct intel_watermark_params *display,
+ const struct intel_watermark_params *cursor,
+ int *display_wm, int *cursor_wm)
+{
+ struct drm_crtc *crtc;
+ int hdisplay, htotal, pixel_size, clock;
+ unsigned long line_time_us;
+ int line_count, line_size;
+ int small, large;
+ int entries;
+
+ if (!latency_ns) {
+ *display_wm = *cursor_wm = 0;
+ return false;
+ }
+
+ crtc = intel_get_crtc_for_plane(dev, plane);
+ hdisplay = crtc->mode.hdisplay;
+ htotal = crtc->mode.htotal;
+ clock = crtc->mode.clock;
+ pixel_size = crtc->fb->bits_per_pixel / 8;
+
+ line_time_us = (htotal * 1000) / clock;
+ line_count = (latency_ns / line_time_us + 1000) / 1000;
+ line_size = hdisplay * pixel_size;
+
+ /* Use the minimum of the small and large buffer method for primary */
+ small = ((clock * pixel_size / 1000) * latency_ns) / 1000;
+ large = line_count * line_size;
+
+ entries = DIV_ROUND_UP(min(small, large), display->cacheline_size);
+ *display_wm = entries + display->guard_size;
+
+ /* calculate the self-refresh watermark for display cursor */
+ entries = line_count * pixel_size * 64;
+ entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
+ *cursor_wm = entries + cursor->guard_size;
+
+ return g4x_check_srwm(dev,
+ *display_wm, *cursor_wm,
+ display, cursor);
+}
+
+#define single_plane_enabled(mask) is_power_of_2(mask)
+
+static void g4x_update_wm(struct drm_device *dev)
+{
+ static const int sr_latency_ns = 12000;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int planea_wm, planeb_wm, cursora_wm, cursorb_wm;
+ int plane_sr, cursor_sr;
+ unsigned int enabled = 0;
+
+ if (g4x_compute_wm0(dev, 0,
+ &g4x_wm_info, latency_ns,
+ &g4x_cursor_wm_info, latency_ns,
+ &planea_wm, &cursora_wm))
+ enabled |= 1;
+
+ if (g4x_compute_wm0(dev, 1,
+ &g4x_wm_info, latency_ns,
+ &g4x_cursor_wm_info, latency_ns,
+ &planeb_wm, &cursorb_wm))
+ enabled |= 2;
+
+ plane_sr = cursor_sr = 0;
+ if (single_plane_enabled(enabled) &&
+ g4x_compute_srwm(dev, ffs(enabled) - 1,
+ sr_latency_ns,
+ &g4x_wm_info,
+ &g4x_cursor_wm_info,
+ &plane_sr, &cursor_sr))
+ I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
+ else
+ I915_WRITE(FW_BLC_SELF,
+ I915_READ(FW_BLC_SELF) & ~FW_BLC_SELF_EN);
+
+ DRM_DEBUG_KMS("Setting FIFO watermarks - A: plane=%d, cursor=%d, B: plane=%d, cursor=%d, SR: plane=%d, cursor=%d\n",
+ planea_wm, cursora_wm,
+ planeb_wm, cursorb_wm,
+ plane_sr, cursor_sr);
+
+ I915_WRITE(DSPFW1,
+ (plane_sr << DSPFW_SR_SHIFT) |
+ (cursorb_wm << DSPFW_CURSORB_SHIFT) |
+ (planeb_wm << DSPFW_PLANEB_SHIFT) |
+ planea_wm);
+ I915_WRITE(DSPFW2,
+ (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) |
+ (cursora_wm << DSPFW_CURSORA_SHIFT));
+ /* HPLL off in SR has some issues on G4x... disable it */
+ I915_WRITE(DSPFW3,
+ (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) |
+ (cursor_sr << DSPFW_CURSOR_SR_SHIFT));
+}
+
+static void i965_update_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_crtc *crtc;
+ int srwm = 1;
+ int cursor_sr = 16;
+
+ /* Calc sr entries for one plane configs */
+ crtc = single_enabled_crtc(dev);
+ if (crtc) {
+ /* self-refresh has much higher latency */
+ static const int sr_latency_ns = 12000;
+ int clock = crtc->mode.clock;
+ int htotal = crtc->mode.htotal;
+ int hdisplay = crtc->mode.hdisplay;
+ int pixel_size = crtc->fb->bits_per_pixel / 8;
+ unsigned long line_time_us;
+ int entries;
+
+ line_time_us = ((htotal * 1000) / clock);
+
+ /* Use ns/us then divide to preserve precision */
+ entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
+ pixel_size * hdisplay;
+ entries = DIV_ROUND_UP(entries, I915_FIFO_LINE_SIZE);
+ srwm = I965_FIFO_SIZE - entries;
+ if (srwm < 0)
+ srwm = 1;
+ srwm &= 0x1ff;
+ DRM_DEBUG_KMS("self-refresh entries: %d, wm: %d\n",
+ entries, srwm);
+
+ entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
+ pixel_size * 64;
+ entries = DIV_ROUND_UP(entries,
+ i965_cursor_wm_info.cacheline_size);
+ cursor_sr = i965_cursor_wm_info.fifo_size -
+ (entries + i965_cursor_wm_info.guard_size);
+
+ if (cursor_sr > i965_cursor_wm_info.max_wm)
+ cursor_sr = i965_cursor_wm_info.max_wm;
+
+ DRM_DEBUG_KMS("self-refresh watermark: display plane %d "
+ "cursor %d\n", srwm, cursor_sr);
+
+ if (IS_CRESTLINE(dev))
+ I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
+ } else {
+ /* Turn off self refresh if both pipes are enabled */
+ if (IS_CRESTLINE(dev))
+ I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF)
+ & ~FW_BLC_SELF_EN);
+ }
+
+ DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n",
+ srwm);
+
+ /* 965 has limitations... */
+ I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) |
+ (8 << 16) | (8 << 8) | (8 << 0));
+ I915_WRITE(DSPFW2, (8 << 8) | (8 << 0));
+ /* update cursor SR watermark */
+ I915_WRITE(DSPFW3, (cursor_sr << DSPFW_CURSOR_SR_SHIFT));
+}
+
+static void i9xx_update_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ const struct intel_watermark_params *wm_info;
+ uint32_t fwater_lo;
+ uint32_t fwater_hi;
+ int cwm, srwm = 1;
+ int fifo_size;
+ int planea_wm, planeb_wm;
+ struct drm_crtc *crtc, *enabled = NULL;
+
+ if (IS_I945GM(dev))
+ wm_info = &i945_wm_info;
+ else if (!IS_GEN2(dev))
+ wm_info = &i915_wm_info;
+ else
+ wm_info = &i855_wm_info;
+
+ fifo_size = dev_priv->display.get_fifo_size(dev, 0);
+ crtc = intel_get_crtc_for_plane(dev, 0);
+ if (crtc->enabled && crtc->fb) {
+ planea_wm = intel_calculate_wm(crtc->mode.clock,
+ wm_info, fifo_size,
+ crtc->fb->bits_per_pixel / 8,
+ latency_ns);
+ enabled = crtc;
+ } else
+ planea_wm = fifo_size - wm_info->guard_size;
+
+ fifo_size = dev_priv->display.get_fifo_size(dev, 1);
+ crtc = intel_get_crtc_for_plane(dev, 1);
+ if (crtc->enabled && crtc->fb) {
+ planeb_wm = intel_calculate_wm(crtc->mode.clock,
+ wm_info, fifo_size,
+ crtc->fb->bits_per_pixel / 8,
+ latency_ns);
+ if (enabled == NULL)
+ enabled = crtc;
+ else
+ enabled = NULL;
+ } else
+ planeb_wm = fifo_size - wm_info->guard_size;
+
+ DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm);
+
+ /*
+ * Overlay gets an aggressive default since video jitter is bad.
+ */
+ cwm = 2;
+
+ /* Play safe and disable self-refresh before adjusting watermarks. */
+ if (IS_I945G(dev) || IS_I945GM(dev))
+ I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | 0);
+ else if (IS_I915GM(dev))
+ I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN);
+
+ /* Calc sr entries for one plane configs */
+ if (HAS_FW_BLC(dev) && enabled) {
+ /* self-refresh has much higher latency */
+ static const int sr_latency_ns = 6000;
+ int clock = enabled->mode.clock;
+ int htotal = enabled->mode.htotal;
+ int hdisplay = enabled->mode.hdisplay;
+ int pixel_size = enabled->fb->bits_per_pixel / 8;
+ unsigned long line_time_us;
+ int entries;
+
+ line_time_us = (htotal * 1000) / clock;
+
+ /* Use ns/us then divide to preserve precision */
+ entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) *
+ pixel_size * hdisplay;
+ entries = DIV_ROUND_UP(entries, wm_info->cacheline_size);
+ DRM_DEBUG_KMS("self-refresh entries: %d\n", entries);
+ srwm = wm_info->fifo_size - entries;
+ if (srwm < 0)
+ srwm = 1;
+
+ if (IS_I945G(dev) || IS_I945GM(dev))
+ I915_WRITE(FW_BLC_SELF,
+ FW_BLC_SELF_FIFO_MASK | (srwm & 0xff));
+ else if (IS_I915GM(dev))
+ I915_WRITE(FW_BLC_SELF, srwm & 0x3f);
+ }
+
+ DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n",
+ planea_wm, planeb_wm, cwm, srwm);
+
+ fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f);
+ fwater_hi = (cwm & 0x1f);
+
+ /* Set request length to 8 cachelines per fetch */
+ fwater_lo = fwater_lo | (1 << 24) | (1 << 8);
+ fwater_hi = fwater_hi | (1 << 8);
+
+ I915_WRITE(FW_BLC, fwater_lo);
+ I915_WRITE(FW_BLC2, fwater_hi);
+
+ if (HAS_FW_BLC(dev)) {
+ if (enabled) {
+ if (IS_I945G(dev) || IS_I945GM(dev))
+ I915_WRITE(FW_BLC_SELF,
+ FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
+ else if (IS_I915GM(dev))
+ I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN);
+ DRM_DEBUG_KMS("memory self refresh enabled\n");
+ } else
+ DRM_DEBUG_KMS("memory self refresh disabled\n");
+ }
+}
+
+static void i830_update_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_crtc *crtc;
+ uint32_t fwater_lo;
+ int planea_wm;
+
+ crtc = single_enabled_crtc(dev);
+ if (crtc == NULL)
+ return;
+
+ planea_wm = intel_calculate_wm(crtc->mode.clock, &i830_wm_info,
+ dev_priv->display.get_fifo_size(dev, 0),
+ crtc->fb->bits_per_pixel / 8,
+ latency_ns);
+ fwater_lo = I915_READ(FW_BLC) & ~0xfff;
+ fwater_lo |= (3<<8) | planea_wm;
+
+ DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm);
+
+ I915_WRITE(FW_BLC, fwater_lo);
+}
+
+#define ILK_LP0_PLANE_LATENCY 700
+#define ILK_LP0_CURSOR_LATENCY 1300
+
+static bool ironlake_compute_wm0(struct drm_device *dev,
+ int pipe,
+ const struct intel_watermark_params *display,
+ int display_latency_ns,
+ const struct intel_watermark_params *cursor,
+ int cursor_latency_ns,
+ int *plane_wm,
+ int *cursor_wm)
+{
+ struct drm_crtc *crtc;
+ int htotal, hdisplay, clock, pixel_size;
+ int line_time_us, line_count;
+ int entries, tlb_miss;
+
+ crtc = intel_get_crtc_for_pipe(dev, pipe);
+ if (crtc->fb == NULL || !crtc->enabled)
+ return false;
+
+ htotal = crtc->mode.htotal;
+ hdisplay = crtc->mode.hdisplay;
+ clock = crtc->mode.clock;
+ pixel_size = crtc->fb->bits_per_pixel / 8;
+
+ /* Use the small buffer method to calculate plane watermark */
+ entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000;
+ tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8;
+ if (tlb_miss > 0)
+ entries += tlb_miss;
+ entries = DIV_ROUND_UP(entries, display->cacheline_size);
+ *plane_wm = entries + display->guard_size;
+ if (*plane_wm > (int)display->max_wm)
+ *plane_wm = display->max_wm;
+
+ /* Use the large buffer method to calculate cursor watermark */
+ line_time_us = ((htotal * 1000) / clock);
+ line_count = (cursor_latency_ns / line_time_us + 1000) / 1000;
+ entries = line_count * 64 * pixel_size;
+ tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8;
+ if (tlb_miss > 0)
+ entries += tlb_miss;
+ entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
+ *cursor_wm = entries + cursor->guard_size;
+ if (*cursor_wm > (int)cursor->max_wm)
+ *cursor_wm = (int)cursor->max_wm;
+
+ return true;
+}
+
+/*
+ * Check the wm result.
+ *
+ * If any calculated watermark values is larger than the maximum value that
+ * can be programmed into the associated watermark register, that watermark
+ * must be disabled.
+ */
+static bool ironlake_check_srwm(struct drm_device *dev, int level,
+ int fbc_wm, int display_wm, int cursor_wm,
+ const struct intel_watermark_params *display,
+ const struct intel_watermark_params *cursor)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ DRM_DEBUG_KMS("watermark %d: display plane %d, fbc lines %d,"
+ " cursor %d\n", level, display_wm, fbc_wm, cursor_wm);
+
+ if (fbc_wm > SNB_FBC_MAX_SRWM) {
+ DRM_DEBUG_KMS("fbc watermark(%d) is too large(%d), disabling wm%d+\n",
+ fbc_wm, SNB_FBC_MAX_SRWM, level);
+
+ /* fbc has it's own way to disable FBC WM */
+ I915_WRITE(DISP_ARB_CTL,
+ I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS);
+ return false;
+ }
+
+ if (display_wm > display->max_wm) {
+ DRM_DEBUG_KMS("display watermark(%d) is too large(%d), disabling wm%d+\n",
+ display_wm, SNB_DISPLAY_MAX_SRWM, level);
+ return false;
+ }
+
+ if (cursor_wm > cursor->max_wm) {
+ DRM_DEBUG_KMS("cursor watermark(%d) is too large(%d), disabling wm%d+\n",
+ cursor_wm, SNB_CURSOR_MAX_SRWM, level);
+ return false;
+ }
+
+ if (!(fbc_wm || display_wm || cursor_wm)) {
+ DRM_DEBUG_KMS("latency %d is 0, disabling wm%d+\n", level, level);
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * Compute watermark values of WM[1-3],
+ */
+static bool ironlake_compute_srwm(struct drm_device *dev, int level, int plane,
+ int latency_ns,
+ const struct intel_watermark_params *display,
+ const struct intel_watermark_params *cursor,
+ int *fbc_wm, int *display_wm, int *cursor_wm)
+{
+ struct drm_crtc *crtc;
+ unsigned long line_time_us;
+ int hdisplay, htotal, pixel_size, clock;
+ int line_count, line_size;
+ int small, large;
+ int entries;
+
+ if (!latency_ns) {
+ *fbc_wm = *display_wm = *cursor_wm = 0;
+ return false;
+ }
+
+ crtc = intel_get_crtc_for_plane(dev, plane);
+ hdisplay = crtc->mode.hdisplay;
+ htotal = crtc->mode.htotal;
+ clock = crtc->mode.clock;
+ pixel_size = crtc->fb->bits_per_pixel / 8;
+
+ line_time_us = (htotal * 1000) / clock;
+ line_count = (latency_ns / line_time_us + 1000) / 1000;
+ line_size = hdisplay * pixel_size;
+
+ /* Use the minimum of the small and large buffer method for primary */
+ small = ((clock * pixel_size / 1000) * latency_ns) / 1000;
+ large = line_count * line_size;
+
+ entries = DIV_ROUND_UP(min(small, large), display->cacheline_size);
+ *display_wm = entries + display->guard_size;
+
+ /*
+ * Spec says:
+ * FBC WM = ((Final Primary WM * 64) / number of bytes per line) + 2
+ */
+ *fbc_wm = DIV_ROUND_UP(*display_wm * 64, line_size) + 2;
+
+ /* calculate the self-refresh watermark for display cursor */
+ entries = line_count * pixel_size * 64;
+ entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
+ *cursor_wm = entries + cursor->guard_size;
+
+ return ironlake_check_srwm(dev, level,
+ *fbc_wm, *display_wm, *cursor_wm,
+ display, cursor);
+}
+
+static void ironlake_update_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int fbc_wm, plane_wm, cursor_wm;
+ unsigned int enabled;
+
+ enabled = 0;
+ if (ironlake_compute_wm0(dev, 0,
+ &ironlake_display_wm_info,
+ ILK_LP0_PLANE_LATENCY,
+ &ironlake_cursor_wm_info,
+ ILK_LP0_CURSOR_LATENCY,
+ &plane_wm, &cursor_wm)) {
+ I915_WRITE(WM0_PIPEA_ILK,
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
+ " plane %d, " "cursor: %d\n",
+ plane_wm, cursor_wm);
+ enabled |= 1;
+ }
+
+ if (ironlake_compute_wm0(dev, 1,
+ &ironlake_display_wm_info,
+ ILK_LP0_PLANE_LATENCY,
+ &ironlake_cursor_wm_info,
+ ILK_LP0_CURSOR_LATENCY,
+ &plane_wm, &cursor_wm)) {
+ I915_WRITE(WM0_PIPEB_ILK,
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
+ " plane %d, cursor: %d\n",
+ plane_wm, cursor_wm);
+ enabled |= 2;
+ }
+
+ /*
+ * Calculate and update the self-refresh watermark only when one
+ * display plane is used.
+ */
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
+
+ if (!single_plane_enabled(enabled))
+ return;
+ enabled = ffs(enabled) - 1;
+
+ /* WM1 */
+ if (!ironlake_compute_srwm(dev, 1, enabled,
+ ILK_READ_WM1_LATENCY() * 500,
+ &ironlake_display_srwm_info,
+ &ironlake_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM1_LP_ILK,
+ WM1_LP_SR_EN |
+ (ILK_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /* WM2 */
+ if (!ironlake_compute_srwm(dev, 2, enabled,
+ ILK_READ_WM2_LATENCY() * 500,
+ &ironlake_display_srwm_info,
+ &ironlake_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM2_LP_ILK,
+ WM2_LP_EN |
+ (ILK_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /*
+ * WM3 is unsupported on ILK, probably because we don't have latency
+ * data for that power state
+ */
+}
+
+static void sandybridge_update_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */
+ int fbc_wm, plane_wm, cursor_wm;
+ unsigned int enabled;
+
+ enabled = 0;
+ if (ironlake_compute_wm0(dev, 0,
+ &sandybridge_display_wm_info, latency,
+ &sandybridge_cursor_wm_info, latency,
+ &plane_wm, &cursor_wm)) {
+ I915_WRITE(WM0_PIPEA_ILK,
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
+ " plane %d, " "cursor: %d\n",
+ plane_wm, cursor_wm);
+ enabled |= 1;
+ }
+
+ if (ironlake_compute_wm0(dev, 1,
+ &sandybridge_display_wm_info, latency,
+ &sandybridge_cursor_wm_info, latency,
+ &plane_wm, &cursor_wm)) {
+ I915_WRITE(WM0_PIPEB_ILK,
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
+ " plane %d, cursor: %d\n",
+ plane_wm, cursor_wm);
+ enabled |= 2;
+ }
+
+ /*
+ * Calculate and update the self-refresh watermark only when one
+ * display plane is used.
+ *
+ * SNB support 3 levels of watermark.
+ *
+ * WM1/WM2/WM2 watermarks have to be enabled in the ascending order,
+ * and disabled in the descending order
+ *
+ */
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
+
+ if (!single_plane_enabled(enabled))
+ return;
+ enabled = ffs(enabled) - 1;
+
+ /* WM1 */
+ if (!ironlake_compute_srwm(dev, 1, enabled,
+ SNB_READ_WM1_LATENCY() * 500,
+ &sandybridge_display_srwm_info,
+ &sandybridge_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM1_LP_ILK,
+ WM1_LP_SR_EN |
+ (SNB_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /* WM2 */
+ if (!ironlake_compute_srwm(dev, 2, enabled,
+ SNB_READ_WM2_LATENCY() * 500,
+ &sandybridge_display_srwm_info,
+ &sandybridge_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM2_LP_ILK,
+ WM2_LP_EN |
+ (SNB_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /* WM3 */
+ if (!ironlake_compute_srwm(dev, 3, enabled,
+ SNB_READ_WM3_LATENCY() * 500,
+ &sandybridge_display_srwm_info,
+ &sandybridge_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM3_LP_ILK,
+ WM3_LP_EN |
+ (SNB_READ_WM3_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+}
+
+/**
+ * intel_update_watermarks - update FIFO watermark values based on current modes
+ *
+ * Calculate watermark values for the various WM regs based on current mode
+ * and plane configuration.
+ *
+ * There are several cases to deal with here:
+ * - normal (i.e. non-self-refresh)
+ * - self-refresh (SR) mode
+ * - lines are large relative to FIFO size (buffer can hold up to 2)
+ * - lines are small relative to FIFO size (buffer can hold more than 2
+ * lines), so need to account for TLB latency
+ *
+ * The normal calculation is:
+ * watermark = dotclock * bytes per pixel * latency
+ * where latency is platform & configuration dependent (we assume pessimal
+ * values here).
+ *
+ * The SR calculation is:
+ * watermark = (trunc(latency/line time)+1) * surface width *
+ * bytes per pixel
+ * where
+ * line time = htotal / dotclock
+ * surface width = hdisplay for normal plane and 64 for cursor
+ * and latency is assumed to be high, as above.
+ *
+ * The final value programmed to the register should always be rounded up,
+ * and include an extra 2 entries to account for clock crossings.
+ *
+ * We don't use the sprite, so we can ignore that. And on Crestline we have
+ * to set the non-SR watermarks to 8.
+ */
+static void intel_update_watermarks(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (dev_priv->display.update_wm)
+ dev_priv->display.update_wm(dev);
+}
+
+static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
{
+ return dev_priv->lvds_use_ssc && i915_panel_use_ssc;
+}
+
+static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- int fbc_wm, plane_wm, cursor_wm, enabled;
- int clock;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int plane = intel_crtc->plane;
+ int refclk, num_connectors = 0;
+ intel_clock_t clock, reduced_clock;
+ u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf;
+ bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false;
+ bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false;
+ struct drm_mode_config *mode_config = &dev->mode_config;
+ struct intel_encoder *encoder;
+ const intel_limit_t *limit;
+ int ret;
+ u32 temp;
+ u32 lvds_sync = 0;
- enabled = 0;
- if (ironlake_compute_wm0(dev, 0,
- &ironlake_display_wm_info,
- ILK_LP0_PLANE_LATENCY,
- &ironlake_cursor_wm_info,
- ILK_LP0_CURSOR_LATENCY,
- &plane_wm, &cursor_wm)) {
- I915_WRITE(WM0_PIPEA_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
- DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
- " plane %d, " "cursor: %d\n",
- plane_wm, cursor_wm);
- enabled++;
+ list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
+ if (encoder->base.crtc != crtc)
+ continue;
+
+ switch (encoder->type) {
+ case INTEL_OUTPUT_LVDS:
+ is_lvds = true;
+ break;
+ case INTEL_OUTPUT_SDVO:
+ case INTEL_OUTPUT_HDMI:
+ is_sdvo = true;
+ if (encoder->needs_tv_clock)
+ is_tv = true;
+ break;
+ case INTEL_OUTPUT_DVO:
+ is_dvo = true;
+ break;
+ case INTEL_OUTPUT_TVOUT:
+ is_tv = true;
+ break;
+ case INTEL_OUTPUT_ANALOG:
+ is_crt = true;
+ break;
+ case INTEL_OUTPUT_DISPLAYPORT:
+ is_dp = true;
+ break;
+ }
+
+ num_connectors++;
}
- if (ironlake_compute_wm0(dev, 1,
- &ironlake_display_wm_info,
- ILK_LP0_PLANE_LATENCY,
- &ironlake_cursor_wm_info,
- ILK_LP0_CURSOR_LATENCY,
- &plane_wm, &cursor_wm)) {
- I915_WRITE(WM0_PIPEB_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
- DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
- " plane %d, cursor: %d\n",
- plane_wm, cursor_wm);
- enabled++;
+ if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
+ refclk = dev_priv->lvds_ssc_freq * 1000;
+ DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
+ refclk / 1000);
+ } else if (!IS_GEN2(dev)) {
+ refclk = 96000;
+ } else {
+ refclk = 48000;
}
/*
- * Calculate and update the self-refresh watermark only when one
- * display plane is used.
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE. The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
*/
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ limit = intel_limit(crtc, refclk);
+ ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock);
+ if (!ok) {
+ DRM_ERROR("Couldn't find PLL settings for mode!\n");
+ return -EINVAL;
+ }
- if (enabled != 1)
- return;
+ /* Ensure that the cursor is valid for the new mode before changing... */
+ intel_crtc_update_cursor(crtc, true);
- clock = planea_clock ? planea_clock : planeb_clock;
+ if (is_lvds && dev_priv->lvds_downclock_avail) {
+ has_reduced_clock = limit->find_pll(limit, crtc,
+ dev_priv->lvds_downclock,
+ refclk,
+ &reduced_clock);
+ if (has_reduced_clock && (clock.p != reduced_clock.p)) {
+ /*
+ * If the different P is found, it means that we can't
+ * switch the display clock by using the FP0/FP1.
+ * In such case we will disable the LVDS downclock
+ * feature.
+ */
+ DRM_DEBUG_KMS("Different P is found for "
+ "LVDS clock/downclock\n");
+ has_reduced_clock = 0;
+ }
+ }
+ /* SDVO TV has fixed PLL values depend on its clock range,
+ this mirrors vbios setting. */
+ if (is_sdvo && is_tv) {
+ if (adjusted_mode->clock >= 100000
+ && adjusted_mode->clock < 140500) {
+ clock.p1 = 2;
+ clock.p2 = 10;
+ clock.n = 3;
+ clock.m1 = 16;
+ clock.m2 = 8;
+ } else if (adjusted_mode->clock >= 140500
+ && adjusted_mode->clock <= 200000) {
+ clock.p1 = 1;
+ clock.p2 = 10;
+ clock.n = 6;
+ clock.m1 = 12;
+ clock.m2 = 8;
+ }
+ }
- /* WM1 */
- if (!ironlake_compute_srwm(dev, 1, hdisplay, htotal, pixel_size,
- clock, ILK_READ_WM1_LATENCY() * 500,
- &ironlake_display_srwm_info,
- &ironlake_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
+ if (IS_PINEVIEW(dev)) {
+ fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2;
+ if (has_reduced_clock)
+ fp2 = (1 << reduced_clock.n) << 16 |
+ reduced_clock.m1 << 8 | reduced_clock.m2;
+ } else {
+ fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
+ if (has_reduced_clock)
+ fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 |
+ reduced_clock.m2;
+ }
- I915_WRITE(WM1_LP_ILK,
- WM1_LP_SR_EN |
- (ILK_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
+ dpll = DPLL_VGA_MODE_DIS;
- /* WM2 */
- if (!ironlake_compute_srwm(dev, 2, hdisplay, htotal, pixel_size,
- clock, ILK_READ_WM2_LATENCY() * 500,
- &ironlake_display_srwm_info,
- &ironlake_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
+ if (!IS_GEN2(dev)) {
+ if (is_lvds)
+ dpll |= DPLLB_MODE_LVDS;
+ else
+ dpll |= DPLLB_MODE_DAC_SERIAL;
+ if (is_sdvo) {
+ int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
+ if (pixel_multiplier > 1) {
+ if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
+ dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES;
+ }
+ dpll |= DPLL_DVO_HIGH_SPEED;
+ }
+ if (is_dp)
+ dpll |= DPLL_DVO_HIGH_SPEED;
- I915_WRITE(WM2_LP_ILK,
- WM2_LP_EN |
- (ILK_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
+ /* compute bitmask from p1 value */
+ if (IS_PINEVIEW(dev))
+ dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
+ else {
+ dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ if (IS_G4X(dev) && has_reduced_clock)
+ dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
+ }
+ switch (clock.p2) {
+ case 5:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
+ break;
+ case 7:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
+ break;
+ case 10:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
+ break;
+ case 14:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
+ break;
+ }
+ if (INTEL_INFO(dev)->gen >= 4)
+ dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
+ } else {
+ if (is_lvds) {
+ dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ } else {
+ if (clock.p1 == 2)
+ dpll |= PLL_P1_DIVIDE_BY_TWO;
+ else
+ dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ if (clock.p2 == 4)
+ dpll |= PLL_P2_DIVIDE_BY_4;
+ }
+ }
- /*
- * WM3 is unsupported on ILK, probably because we don't have latency
- * data for that power state
- */
-}
+ if (is_sdvo && is_tv)
+ dpll |= PLL_REF_INPUT_TVCLKINBC;
+ else if (is_tv)
+ /* XXX: just matching BIOS for now */
+ /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
+ dpll |= 3;
+ else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
+ dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
+ else
+ dpll |= PLL_REF_INPUT_DREFCLK;
-static void sandybridge_update_wm(struct drm_device *dev,
- int planea_clock, int planeb_clock,
- int hdisplay, int htotal,
- int pixel_size)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */
- int fbc_wm, plane_wm, cursor_wm, enabled;
- int clock;
+ /* setup pipeconf */
+ pipeconf = I915_READ(PIPECONF(pipe));
+
+ /* Set up the display plane register */
+ dspcntr = DISPPLANE_GAMMA_ENABLE;
+
+ /* Ironlake's plane is forced to pipe, bit 24 is to
+ enable color space conversion */
+ if (pipe == 0)
+ dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
+ else
+ dspcntr |= DISPPLANE_SEL_PIPE_B;
+
+ if (pipe == 0 && INTEL_INFO(dev)->gen < 4) {
+ /* Enable pixel doubling when the dot clock is > 90% of the (display)
+ * core speed.
+ *
+ * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
+ * pipe == 0 check?
+ */
+ if (mode->clock >
+ dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
+ pipeconf |= PIPECONF_DOUBLE_WIDE;
+ else
+ pipeconf &= ~PIPECONF_DOUBLE_WIDE;
+ }
+
+ dpll |= DPLL_VCO_ENABLE;
+
+ DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
+ drm_mode_debug_printmodeline(mode);
+
+ I915_WRITE(FP0(pipe), fp);
+ I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
+
+ POSTING_READ(DPLL(pipe));
+ udelay(150);
+
+ /* The LVDS pin pair needs to be on before the DPLLs are enabled.
+ * This is an exception to the general rule that mode_set doesn't turn
+ * things on.
+ */
+ if (is_lvds) {
+ temp = I915_READ(LVDS);
+ temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
+ if (pipe == 1) {
+ temp |= LVDS_PIPEB_SELECT;
+ } else {
+ temp &= ~LVDS_PIPEB_SELECT;
+ }
+ /* set the corresponsding LVDS_BORDER bit */
+ temp |= dev_priv->lvds_border_bits;
+ /* Set the B0-B3 data pairs corresponding to whether we're going to
+ * set the DPLLs for dual-channel mode or not.
+ */
+ if (clock.p2 == 7)
+ temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
+ else
+ temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
- enabled = 0;
- if (ironlake_compute_wm0(dev, 0,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- I915_WRITE(WM0_PIPEA_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
- DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
- " plane %d, " "cursor: %d\n",
- plane_wm, cursor_wm);
- enabled++;
+ /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
+ * appropriately here, but we need to look more thoroughly into how
+ * panels behave in the two modes.
+ */
+ /* set the dithering flag on LVDS as needed */
+ if (INTEL_INFO(dev)->gen >= 4) {
+ if (dev_priv->lvds_dither)
+ temp |= LVDS_ENABLE_DITHER;
+ else
+ temp &= ~LVDS_ENABLE_DITHER;
+ }
+ if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
+ lvds_sync |= LVDS_HSYNC_POLARITY;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
+ lvds_sync |= LVDS_VSYNC_POLARITY;
+ if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY))
+ != lvds_sync) {
+ char flags[2] = "-+";
+ DRM_INFO("Changing LVDS panel from "
+ "(%chsync, %cvsync) to (%chsync, %cvsync)\n",
+ flags[!(temp & LVDS_HSYNC_POLARITY)],
+ flags[!(temp & LVDS_VSYNC_POLARITY)],
+ flags[!(lvds_sync & LVDS_HSYNC_POLARITY)],
+ flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]);
+ temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
+ temp |= lvds_sync;
+ }
+ I915_WRITE(LVDS, temp);
}
- if (ironlake_compute_wm0(dev, 1,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- I915_WRITE(WM0_PIPEB_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
- DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
- " plane %d, cursor: %d\n",
- plane_wm, cursor_wm);
- enabled++;
+ if (is_dp) {
+ intel_dp_set_m_n(crtc, mode, adjusted_mode);
}
- /*
- * Calculate and update the self-refresh watermark only when one
- * display plane is used.
- *
- * SNB support 3 levels of watermark.
- *
- * WM1/WM2/WM2 watermarks have to be enabled in the ascending order,
- * and disabled in the descending order
- *
- */
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ I915_WRITE(DPLL(pipe), dpll);
- if (enabled != 1)
- return;
+ /* Wait for the clocks to stabilize. */
+ POSTING_READ(DPLL(pipe));
+ udelay(150);
- clock = planea_clock ? planea_clock : planeb_clock;
+ if (INTEL_INFO(dev)->gen >= 4) {
+ temp = 0;
+ if (is_sdvo) {
+ temp = intel_mode_get_pixel_multiplier(adjusted_mode);
+ if (temp > 1)
+ temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
+ else
+ temp = 0;
+ }
+ I915_WRITE(DPLL_MD(pipe), temp);
+ } else {
+ /* The pixel multiplier can only be updated once the
+ * DPLL is enabled and the clocks are stable.
+ *
+ * So write it again.
+ */
+ I915_WRITE(DPLL(pipe), dpll);
+ }
- /* WM1 */
- if (!ironlake_compute_srwm(dev, 1, hdisplay, htotal, pixel_size,
- clock, SNB_READ_WM1_LATENCY() * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
+ intel_crtc->lowfreq_avail = false;
+ if (is_lvds && has_reduced_clock && i915_powersave) {
+ I915_WRITE(FP1(pipe), fp2);
+ intel_crtc->lowfreq_avail = true;
+ if (HAS_PIPE_CXSR(dev)) {
+ DRM_DEBUG_KMS("enabling CxSR downclocking\n");
+ pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
+ }
+ } else {
+ I915_WRITE(FP1(pipe), fp);
+ if (HAS_PIPE_CXSR(dev)) {
+ DRM_DEBUG_KMS("disabling CxSR downclocking\n");
+ pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
+ }
+ }
- I915_WRITE(WM1_LP_ILK,
- WM1_LP_SR_EN |
- (SNB_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
+ if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
+ pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
+ /* the chip adds 2 halflines automatically */
+ adjusted_mode->crtc_vdisplay -= 1;
+ adjusted_mode->crtc_vtotal -= 1;
+ adjusted_mode->crtc_vblank_start -= 1;
+ adjusted_mode->crtc_vblank_end -= 1;
+ adjusted_mode->crtc_vsync_end -= 1;
+ adjusted_mode->crtc_vsync_start -= 1;
+ } else
+ pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */
- /* WM2 */
- if (!ironlake_compute_srwm(dev, 2,
- hdisplay, htotal, pixel_size,
- clock, SNB_READ_WM2_LATENCY() * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
+ I915_WRITE(HTOTAL(pipe),
+ (adjusted_mode->crtc_hdisplay - 1) |
+ ((adjusted_mode->crtc_htotal - 1) << 16));
+ I915_WRITE(HBLANK(pipe),
+ (adjusted_mode->crtc_hblank_start - 1) |
+ ((adjusted_mode->crtc_hblank_end - 1) << 16));
+ I915_WRITE(HSYNC(pipe),
+ (adjusted_mode->crtc_hsync_start - 1) |
+ ((adjusted_mode->crtc_hsync_end - 1) << 16));
- I915_WRITE(WM2_LP_ILK,
- WM2_LP_EN |
- (SNB_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
+ I915_WRITE(VTOTAL(pipe),
+ (adjusted_mode->crtc_vdisplay - 1) |
+ ((adjusted_mode->crtc_vtotal - 1) << 16));
+ I915_WRITE(VBLANK(pipe),
+ (adjusted_mode->crtc_vblank_start - 1) |
+ ((adjusted_mode->crtc_vblank_end - 1) << 16));
+ I915_WRITE(VSYNC(pipe),
+ (adjusted_mode->crtc_vsync_start - 1) |
+ ((adjusted_mode->crtc_vsync_end - 1) << 16));
- /* WM3 */
- if (!ironlake_compute_srwm(dev, 3,
- hdisplay, htotal, pixel_size,
- clock, SNB_READ_WM3_LATENCY() * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
+ /* pipesrc and dspsize control the size that is scaled from,
+ * which should always be the user's requested size.
+ */
+ I915_WRITE(DSPSIZE(plane),
+ ((mode->vdisplay - 1) << 16) |
+ (mode->hdisplay - 1));
+ I915_WRITE(DSPPOS(plane), 0);
+ I915_WRITE(PIPESRC(pipe),
+ ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
- I915_WRITE(WM3_LP_ILK,
- WM3_LP_EN |
- (SNB_READ_WM3_LATENCY() << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
-}
+ I915_WRITE(PIPECONF(pipe), pipeconf);
+ POSTING_READ(PIPECONF(pipe));
+ intel_enable_pipe(dev_priv, pipe, false);
-/**
- * intel_update_watermarks - update FIFO watermark values based on current modes
- *
- * Calculate watermark values for the various WM regs based on current mode
- * and plane configuration.
- *
- * There are several cases to deal with here:
- * - normal (i.e. non-self-refresh)
- * - self-refresh (SR) mode
- * - lines are large relative to FIFO size (buffer can hold up to 2)
- * - lines are small relative to FIFO size (buffer can hold more than 2
- * lines), so need to account for TLB latency
- *
- * The normal calculation is:
- * watermark = dotclock * bytes per pixel * latency
- * where latency is platform & configuration dependent (we assume pessimal
- * values here).
- *
- * The SR calculation is:
- * watermark = (trunc(latency/line time)+1) * surface width *
- * bytes per pixel
- * where
- * line time = htotal / dotclock
- * surface width = hdisplay for normal plane and 64 for cursor
- * and latency is assumed to be high, as above.
- *
- * The final value programmed to the register should always be rounded up,
- * and include an extra 2 entries to account for clock crossings.
- *
- * We don't use the sprite, so we can ignore that. And on Crestline we have
- * to set the non-SR watermarks to 8.
- */
-static void intel_update_watermarks(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_crtc *crtc;
- int sr_hdisplay = 0;
- unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0;
- int enabled = 0, pixel_size = 0;
- int sr_htotal = 0;
+ intel_wait_for_vblank(dev, pipe);
- if (!dev_priv->display.update_wm)
- return;
+ I915_WRITE(DSPCNTR(plane), dspcntr);
+ POSTING_READ(DSPCNTR(plane));
- /* Get the clock config from both planes */
- list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- if (intel_crtc->active) {
- enabled++;
- if (intel_crtc->plane == 0) {
- DRM_DEBUG_KMS("plane A (pipe %d) clock: %d\n",
- intel_crtc->pipe, crtc->mode.clock);
- planea_clock = crtc->mode.clock;
- } else {
- DRM_DEBUG_KMS("plane B (pipe %d) clock: %d\n",
- intel_crtc->pipe, crtc->mode.clock);
- planeb_clock = crtc->mode.clock;
- }
- sr_hdisplay = crtc->mode.hdisplay;
- sr_clock = crtc->mode.clock;
- sr_htotal = crtc->mode.htotal;
- if (crtc->fb)
- pixel_size = crtc->fb->bits_per_pixel / 8;
- else
- pixel_size = 4; /* by default */
- }
- }
+ ret = intel_pipe_set_base(crtc, x, y, old_fb);
- if (enabled <= 0)
- return;
+ intel_update_watermarks(dev);
- dev_priv->display.update_wm(dev, planea_clock, planeb_clock,
- sr_hdisplay, sr_htotal, pixel_size);
+ return ret;
}
-static int intel_crtc_mode_set(struct drm_crtc *crtc,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode,
- int x, int y,
- struct drm_framebuffer *old_fb)
+static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
int plane = intel_crtc->plane;
- u32 fp_reg, dpll_reg;
int refclk, num_connectors = 0;
intel_clock_t clock, reduced_clock;
u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf;
- bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false;
+ bool ok, has_reduced_clock = false, is_sdvo = false;
bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false;
struct intel_encoder *has_edp_encoder = NULL;
struct drm_mode_config *mode_config = &dev->mode_config;
const intel_limit_t *limit;
int ret;
struct fdi_m_n m_n = {0};
- u32 reg, temp;
- int target_clock;
-
- drm_vblank_pre_modeset(dev, pipe);
+ u32 temp;
+ u32 lvds_sync = 0;
+ int target_clock, pixel_multiplier, lane, link_bw, bpp, factor;
list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
if (encoder->base.crtc != crtc)
if (encoder->needs_tv_clock)
is_tv = true;
break;
- case INTEL_OUTPUT_DVO:
- is_dvo = true;
- break;
case INTEL_OUTPUT_TVOUT:
is_tv = true;
break;
num_connectors++;
}
- if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) {
+ if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
refclk = dev_priv->lvds_ssc_freq * 1000;
DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
refclk / 1000);
- } else if (!IS_GEN2(dev)) {
+ } else {
refclk = 96000;
- if (HAS_PCH_SPLIT(dev) &&
- (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)))
+ if (!has_edp_encoder ||
+ intel_encoder_is_pch_edp(&has_edp_encoder->base))
refclk = 120000; /* 120Mhz refclk */
- } else {
- refclk = 48000;
}
/*
ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock);
if (!ok) {
DRM_ERROR("Couldn't find PLL settings for mode!\n");
- drm_vblank_post_modeset(dev, pipe);
return -EINVAL;
}
}
/* FDI link */
- if (HAS_PCH_SPLIT(dev)) {
- int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
- int lane = 0, link_bw, bpp;
- /* CPU eDP doesn't require FDI link, so just set DP M/N
- according to current link config */
- if (has_edp_encoder && !intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+ pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
+ lane = 0;
+ /* CPU eDP doesn't require FDI link, so just set DP M/N
+ according to current link config */
+ if (has_edp_encoder &&
+ !intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+ target_clock = mode->clock;
+ intel_edp_link_config(has_edp_encoder,
+ &lane, &link_bw);
+ } else {
+ /* [e]DP over FDI requires target mode clock
+ instead of link clock */
+ if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base))
target_clock = mode->clock;
- intel_edp_link_config(has_edp_encoder,
- &lane, &link_bw);
- } else {
- /* [e]DP over FDI requires target mode clock
- instead of link clock */
- if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base))
- target_clock = mode->clock;
- else
- target_clock = adjusted_mode->clock;
-
- /* FDI is a binary signal running at ~2.7GHz, encoding
- * each output octet as 10 bits. The actual frequency
- * is stored as a divider into a 100MHz clock, and the
- * mode pixel clock is stored in units of 1KHz.
- * Hence the bw of each lane in terms of the mode signal
- * is:
- */
- link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
- }
+ else
+ target_clock = adjusted_mode->clock;
+
+ /* FDI is a binary signal running at ~2.7GHz, encoding
+ * each output octet as 10 bits. The actual frequency
+ * is stored as a divider into a 100MHz clock, and the
+ * mode pixel clock is stored in units of 1KHz.
+ * Hence the bw of each lane in terms of the mode signal
+ * is:
+ */
+ link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
+ }
- /* determine panel color depth */
- temp = I915_READ(PIPECONF(pipe));
- temp &= ~PIPE_BPC_MASK;
- if (is_lvds) {
- /* the BPC will be 6 if it is 18-bit LVDS panel */
- if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP)
- temp |= PIPE_8BPC;
- else
- temp |= PIPE_6BPC;
- } else if (has_edp_encoder) {
- switch (dev_priv->edp.bpp/3) {
- case 8:
- temp |= PIPE_8BPC;
- break;
- case 10:
- temp |= PIPE_10BPC;
- break;
- case 6:
- temp |= PIPE_6BPC;
- break;
- case 12:
- temp |= PIPE_12BPC;
- break;
- }
- } else
+ /* determine panel color depth */
+ temp = I915_READ(PIPECONF(pipe));
+ temp &= ~PIPE_BPC_MASK;
+ if (is_lvds) {
+ /* the BPC will be 6 if it is 18-bit LVDS panel */
+ if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP)
+ temp |= PIPE_8BPC;
+ else
+ temp |= PIPE_6BPC;
+ } else if (has_edp_encoder) {
+ switch (dev_priv->edp.bpp/3) {
+ case 8:
temp |= PIPE_8BPC;
- I915_WRITE(PIPECONF(pipe), temp);
-
- switch (temp & PIPE_BPC_MASK) {
- case PIPE_8BPC:
- bpp = 24;
break;
- case PIPE_10BPC:
- bpp = 30;
+ case 10:
+ temp |= PIPE_10BPC;
break;
- case PIPE_6BPC:
- bpp = 18;
+ case 6:
+ temp |= PIPE_6BPC;
break;
- case PIPE_12BPC:
- bpp = 36;
+ case 12:
+ temp |= PIPE_12BPC;
break;
- default:
- DRM_ERROR("unknown pipe bpc value\n");
- bpp = 24;
- }
-
- if (!lane) {
- /*
- * Account for spread spectrum to avoid
- * oversubscribing the link. Max center spread
- * is 2.5%; use 5% for safety's sake.
- */
- u32 bps = target_clock * bpp * 21 / 20;
- lane = bps / (link_bw * 8) + 1;
}
+ } else
+ temp |= PIPE_8BPC;
+ I915_WRITE(PIPECONF(pipe), temp);
- intel_crtc->fdi_lanes = lane;
+ switch (temp & PIPE_BPC_MASK) {
+ case PIPE_8BPC:
+ bpp = 24;
+ break;
+ case PIPE_10BPC:
+ bpp = 30;
+ break;
+ case PIPE_6BPC:
+ bpp = 18;
+ break;
+ case PIPE_12BPC:
+ bpp = 36;
+ break;
+ default:
+ DRM_ERROR("unknown pipe bpc value\n");
+ bpp = 24;
+ }
- if (pixel_multiplier > 1)
- link_bw *= pixel_multiplier;
- ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n);
+ if (!lane) {
+ /*
+ * Account for spread spectrum to avoid
+ * oversubscribing the link. Max center spread
+ * is 2.5%; use 5% for safety's sake.
+ */
+ u32 bps = target_clock * bpp * 21 / 20;
+ lane = bps / (link_bw * 8) + 1;
}
+ intel_crtc->fdi_lanes = lane;
+
+ if (pixel_multiplier > 1)
+ link_bw *= pixel_multiplier;
+ ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n);
+
/* Ironlake: try to setup display ref clock before DPLL
* enabling. This is only under driver's control after
* PCH B stepping, previous chipset stepping should be
- * ignoring this setting.
- */
- if (HAS_PCH_SPLIT(dev)) {
- temp = I915_READ(PCH_DREF_CONTROL);
- /* Always enable nonspread source */
- temp &= ~DREF_NONSPREAD_SOURCE_MASK;
- temp |= DREF_NONSPREAD_SOURCE_ENABLE;
- temp &= ~DREF_SSC_SOURCE_MASK;
- temp |= DREF_SSC_SOURCE_ENABLE;
- I915_WRITE(PCH_DREF_CONTROL, temp);
-
- POSTING_READ(PCH_DREF_CONTROL);
- udelay(200);
-
- if (has_edp_encoder) {
- if (dev_priv->lvds_use_ssc) {
- temp |= DREF_SSC1_ENABLE;
- I915_WRITE(PCH_DREF_CONTROL, temp);
+ * ignoring this setting.
+ */
+ temp = I915_READ(PCH_DREF_CONTROL);
+ /* Always enable nonspread source */
+ temp &= ~DREF_NONSPREAD_SOURCE_MASK;
+ temp |= DREF_NONSPREAD_SOURCE_ENABLE;
+ temp &= ~DREF_SSC_SOURCE_MASK;
+ temp |= DREF_SSC_SOURCE_ENABLE;
+ I915_WRITE(PCH_DREF_CONTROL, temp);
+
+ POSTING_READ(PCH_DREF_CONTROL);
+ udelay(200);
- POSTING_READ(PCH_DREF_CONTROL);
- udelay(200);
- }
- temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
-
- /* Enable CPU source on CPU attached eDP */
- if (!intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
- if (dev_priv->lvds_use_ssc)
- temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
- else
- temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
- } else {
- /* Enable SSC on PCH eDP if needed */
- if (dev_priv->lvds_use_ssc) {
- DRM_ERROR("enabling SSC on PCH\n");
- temp |= DREF_SUPERSPREAD_SOURCE_ENABLE;
- }
- }
+ if (has_edp_encoder) {
+ if (intel_panel_use_ssc(dev_priv)) {
+ temp |= DREF_SSC1_ENABLE;
I915_WRITE(PCH_DREF_CONTROL, temp);
+
POSTING_READ(PCH_DREF_CONTROL);
udelay(200);
}
- }
+ temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
- if (IS_PINEVIEW(dev)) {
- fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2;
- if (has_reduced_clock)
- fp2 = (1 << reduced_clock.n) << 16 |
- reduced_clock.m1 << 8 | reduced_clock.m2;
- } else {
- fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
- if (has_reduced_clock)
- fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 |
- reduced_clock.m2;
+ /* Enable CPU source on CPU attached eDP */
+ if (!intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+ if (intel_panel_use_ssc(dev_priv))
+ temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
+ else
+ temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
+ } else {
+ /* Enable SSC on PCH eDP if needed */
+ if (intel_panel_use_ssc(dev_priv)) {
+ DRM_ERROR("enabling SSC on PCH\n");
+ temp |= DREF_SUPERSPREAD_SOURCE_ENABLE;
+ }
+ }
+ I915_WRITE(PCH_DREF_CONTROL, temp);
+ POSTING_READ(PCH_DREF_CONTROL);
+ udelay(200);
}
- /* Enable autotuning of the PLL clock (if permissible) */
- if (HAS_PCH_SPLIT(dev)) {
- int factor = 21;
+ fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
+ if (has_reduced_clock)
+ fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 |
+ reduced_clock.m2;
- if (is_lvds) {
- if ((dev_priv->lvds_use_ssc &&
- dev_priv->lvds_ssc_freq == 100) ||
- (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP)
- factor = 25;
- } else if (is_sdvo && is_tv)
- factor = 20;
+ /* Enable autotuning of the PLL clock (if permissible) */
+ factor = 21;
+ if (is_lvds) {
+ if ((intel_panel_use_ssc(dev_priv) &&
+ dev_priv->lvds_ssc_freq == 100) ||
+ (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP)
+ factor = 25;
+ } else if (is_sdvo && is_tv)
+ factor = 20;
- if (clock.m1 < factor * clock.n)
- fp |= FP_CB_TUNE;
- }
+ if (clock.m1 < factor * clock.n)
+ fp |= FP_CB_TUNE;
dpll = 0;
- if (!HAS_PCH_SPLIT(dev))
- dpll = DPLL_VGA_MODE_DIS;
- if (!IS_GEN2(dev)) {
- if (is_lvds)
- dpll |= DPLLB_MODE_LVDS;
- else
- dpll |= DPLLB_MODE_DAC_SERIAL;
- if (is_sdvo) {
- int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
- if (pixel_multiplier > 1) {
- if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
- dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES;
- else if (HAS_PCH_SPLIT(dev))
- dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
- }
- dpll |= DPLL_DVO_HIGH_SPEED;
+ if (is_lvds)
+ dpll |= DPLLB_MODE_LVDS;
+ else
+ dpll |= DPLLB_MODE_DAC_SERIAL;
+ if (is_sdvo) {
+ int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
+ if (pixel_multiplier > 1) {
+ dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
}
- if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base))
- dpll |= DPLL_DVO_HIGH_SPEED;
+ dpll |= DPLL_DVO_HIGH_SPEED;
+ }
+ if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base))
+ dpll |= DPLL_DVO_HIGH_SPEED;
- /* compute bitmask from p1 value */
- if (IS_PINEVIEW(dev))
- dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
- else {
- dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- /* also FPA1 */
- if (HAS_PCH_SPLIT(dev))
- dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
- if (IS_G4X(dev) && has_reduced_clock)
- dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
- }
- switch (clock.p2) {
- case 5:
- dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
- break;
- case 7:
- dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
- break;
- case 10:
- dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
- break;
- case 14:
- dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
- break;
- }
- if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev))
- dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
- } else {
- if (is_lvds) {
- dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- } else {
- if (clock.p1 == 2)
- dpll |= PLL_P1_DIVIDE_BY_TWO;
- else
- dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
- if (clock.p2 == 4)
- dpll |= PLL_P2_DIVIDE_BY_4;
- }
+ /* compute bitmask from p1 value */
+ dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
+ /* also FPA1 */
+ dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
+
+ switch (clock.p2) {
+ case 5:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
+ break;
+ case 7:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
+ break;
+ case 10:
+ dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
+ break;
+ case 14:
+ dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
+ break;
}
if (is_sdvo && is_tv)
/* XXX: just matching BIOS for now */
/* dpll |= PLL_REF_INPUT_TVCLKINBC; */
dpll |= 3;
- else if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2)
+ else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
else
dpll |= PLL_REF_INPUT_DREFCLK;
/* Set up the display plane register */
dspcntr = DISPPLANE_GAMMA_ENABLE;
- /* Ironlake's plane is forced to pipe, bit 24 is to
- enable color space conversion */
- if (!HAS_PCH_SPLIT(dev)) {
- if (pipe == 0)
- dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
- else
- dspcntr |= DISPPLANE_SEL_PIPE_B;
- }
-
- if (pipe == 0 && INTEL_INFO(dev)->gen < 4) {
- /* Enable pixel doubling when the dot clock is > 90% of the (display)
- * core speed.
- *
- * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
- * pipe == 0 check?
- */
- if (mode->clock >
- dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
- pipeconf |= PIPECONF_DOUBLE_WIDE;
- else
- pipeconf &= ~PIPECONF_DOUBLE_WIDE;
- }
-
- dspcntr |= DISPLAY_PLANE_ENABLE;
- pipeconf |= PIPECONF_ENABLE;
- dpll |= DPLL_VCO_ENABLE;
-
DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
drm_mode_debug_printmodeline(mode);
- /* assign to Ironlake registers */
- if (HAS_PCH_SPLIT(dev)) {
- fp_reg = PCH_FP0(pipe);
- dpll_reg = PCH_DPLL(pipe);
- } else {
- fp_reg = FP0(pipe);
- dpll_reg = DPLL(pipe);
- }
-
/* PCH eDP needs FDI, but CPU eDP does not */
if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
- I915_WRITE(fp_reg, fp);
- I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE);
+ I915_WRITE(PCH_FP0(pipe), fp);
+ I915_WRITE(PCH_DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
- POSTING_READ(dpll_reg);
+ POSTING_READ(PCH_DPLL(pipe));
udelay(150);
}
/* enable transcoder DPLL */
if (HAS_PCH_CPT(dev)) {
temp = I915_READ(PCH_DPLL_SEL);
- if (pipe == 0)
+ switch (pipe) {
+ case 0:
temp |= TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL;
- else
+ break;
+ case 1:
temp |= TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL;
+ break;
+ case 2:
+ /* FIXME: manage transcoder PLLs? */
+ temp |= TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL;
+ break;
+ default:
+ BUG();
+ }
I915_WRITE(PCH_DPLL_SEL, temp);
POSTING_READ(PCH_DPLL_SEL);
* things on.
*/
if (is_lvds) {
- reg = LVDS;
- if (HAS_PCH_SPLIT(dev))
- reg = PCH_LVDS;
-
- temp = I915_READ(reg);
+ temp = I915_READ(PCH_LVDS);
temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
if (pipe == 1) {
if (HAS_PCH_CPT(dev))
* appropriately here, but we need to look more thoroughly into how
* panels behave in the two modes.
*/
- /* set the dithering flag on non-PCH LVDS as needed */
- if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) {
- if (dev_priv->lvds_dither)
- temp |= LVDS_ENABLE_DITHER;
- else
- temp &= ~LVDS_ENABLE_DITHER;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
+ lvds_sync |= LVDS_HSYNC_POLARITY;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
+ lvds_sync |= LVDS_VSYNC_POLARITY;
+ if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY))
+ != lvds_sync) {
+ char flags[2] = "-+";
+ DRM_INFO("Changing LVDS panel from "
+ "(%chsync, %cvsync) to (%chsync, %cvsync)\n",
+ flags[!(temp & LVDS_HSYNC_POLARITY)],
+ flags[!(temp & LVDS_VSYNC_POLARITY)],
+ flags[!(lvds_sync & LVDS_HSYNC_POLARITY)],
+ flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]);
+ temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
+ temp |= lvds_sync;
}
- I915_WRITE(reg, temp);
+ I915_WRITE(PCH_LVDS, temp);
}
/* set the dithering flag and clear for anything other than a panel. */
- if (HAS_PCH_SPLIT(dev)) {
- pipeconf &= ~PIPECONF_DITHER_EN;
- pipeconf &= ~PIPECONF_DITHER_TYPE_MASK;
- if (dev_priv->lvds_dither && (is_lvds || has_edp_encoder)) {
- pipeconf |= PIPECONF_DITHER_EN;
- pipeconf |= PIPECONF_DITHER_TYPE_ST1;
- }
+ pipeconf &= ~PIPECONF_DITHER_EN;
+ pipeconf &= ~PIPECONF_DITHER_TYPE_MASK;
+ if (dev_priv->lvds_dither && (is_lvds || has_edp_encoder)) {
+ pipeconf |= PIPECONF_DITHER_EN;
+ pipeconf |= PIPECONF_DITHER_TYPE_ST1;
}
if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
intel_dp_set_m_n(crtc, mode, adjusted_mode);
- } else if (HAS_PCH_SPLIT(dev)) {
+ } else {
/* For non-DP output, clear any trans DP clock recovery setting.*/
- if (pipe == 0) {
- I915_WRITE(TRANSA_DATA_M1, 0);
- I915_WRITE(TRANSA_DATA_N1, 0);
- I915_WRITE(TRANSA_DP_LINK_M1, 0);
- I915_WRITE(TRANSA_DP_LINK_N1, 0);
- } else {
- I915_WRITE(TRANSB_DATA_M1, 0);
- I915_WRITE(TRANSB_DATA_N1, 0);
- I915_WRITE(TRANSB_DP_LINK_M1, 0);
- I915_WRITE(TRANSB_DP_LINK_N1, 0);
- }
+ I915_WRITE(TRANSDATA_M1(pipe), 0);
+ I915_WRITE(TRANSDATA_N1(pipe), 0);
+ I915_WRITE(TRANSDPLINK_M1(pipe), 0);
+ I915_WRITE(TRANSDPLINK_N1(pipe), 0);
}
- if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
- I915_WRITE(dpll_reg, dpll);
+ if (!has_edp_encoder ||
+ intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+ I915_WRITE(PCH_DPLL(pipe), dpll);
/* Wait for the clocks to stabilize. */
- POSTING_READ(dpll_reg);
+ POSTING_READ(PCH_DPLL(pipe));
udelay(150);
- if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) {
- temp = 0;
- if (is_sdvo) {
- temp = intel_mode_get_pixel_multiplier(adjusted_mode);
- if (temp > 1)
- temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
- else
- temp = 0;
- }
- I915_WRITE(DPLL_MD(pipe), temp);
- } else {
- /* The pixel multiplier can only be updated once the
- * DPLL is enabled and the clocks are stable.
- *
- * So write it again.
- */
- I915_WRITE(dpll_reg, dpll);
- }
+ /* The pixel multiplier can only be updated once the
+ * DPLL is enabled and the clocks are stable.
+ *
+ * So write it again.
+ */
+ I915_WRITE(PCH_DPLL(pipe), dpll);
}
intel_crtc->lowfreq_avail = false;
if (is_lvds && has_reduced_clock && i915_powersave) {
- I915_WRITE(fp_reg + 4, fp2);
+ I915_WRITE(PCH_FP1(pipe), fp2);
intel_crtc->lowfreq_avail = true;
if (HAS_PIPE_CXSR(dev)) {
DRM_DEBUG_KMS("enabling CxSR downclocking\n");
pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
}
} else {
- I915_WRITE(fp_reg + 4, fp);
+ I915_WRITE(PCH_FP1(pipe), fp);
if (HAS_PIPE_CXSR(dev)) {
DRM_DEBUG_KMS("disabling CxSR downclocking\n");
pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
(adjusted_mode->crtc_vsync_start - 1) |
((adjusted_mode->crtc_vsync_end - 1) << 16));
- /* pipesrc and dspsize control the size that is scaled from,
- * which should always be the user's requested size.
+ /* pipesrc controls the size that is scaled from, which should
+ * always be the user's requested size.
*/
- if (!HAS_PCH_SPLIT(dev)) {
- I915_WRITE(DSPSIZE(plane),
- ((mode->vdisplay - 1) << 16) |
- (mode->hdisplay - 1));
- I915_WRITE(DSPPOS(plane), 0);
- }
I915_WRITE(PIPESRC(pipe),
((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
- if (HAS_PCH_SPLIT(dev)) {
- I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m);
- I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n);
- I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m);
- I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n);
+ I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m);
+ I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n);
+ I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m);
+ I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n);
- if (has_edp_encoder && !intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
- ironlake_set_pll_edp(crtc, adjusted_mode->clock);
- }
+ if (has_edp_encoder &&
+ !intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
+ ironlake_set_pll_edp(crtc, adjusted_mode->clock);
}
I915_WRITE(PIPECONF(pipe), pipeconf);
}
I915_WRITE(DSPCNTR(plane), dspcntr);
+ POSTING_READ(DSPCNTR(plane));
ret = intel_pipe_set_base(crtc, x, y, old_fb);
intel_update_watermarks(dev);
+ return ret;
+}
+
+static int intel_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int pipe = intel_crtc->pipe;
+ int ret;
+
+ drm_vblank_pre_modeset(dev, pipe);
+
+ ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode,
+ x, y, old_fb);
+
drm_vblank_post_modeset(dev, pipe);
return ret;
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int palreg = (intel_crtc->pipe == 0) ? PALETTE_A : PALETTE_B;
+ int palreg = PALETTE(intel_crtc->pipe);
int i;
/* The clocks have to be on to load the palette. */
/* use legacy palette for Ironlake */
if (HAS_PCH_SPLIT(dev))
- palreg = (intel_crtc->pipe == 0) ? LGC_PALETTE_A :
- LGC_PALETTE_B;
+ palreg = LGC_PALETTE(intel_crtc->pipe);
for (i = 0; i < 256; i++) {
I915_WRITE(palreg + 4 * i,
if (intel_crtc->cursor_visible == visible)
return;
- cntl = I915_READ(CURACNTR);
+ cntl = I915_READ(_CURACNTR);
if (visible) {
/* On these chipsets we can only modify the base whilst
* the cursor is disabled.
*/
- I915_WRITE(CURABASE, base);
+ I915_WRITE(_CURABASE, base);
cntl &= ~(CURSOR_FORMAT_MASK);
/* XXX width must be 64, stride 256 => 0x00 << 28 */
CURSOR_FORMAT_ARGB;
} else
cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
- I915_WRITE(CURACNTR, cntl);
+ I915_WRITE(_CURACNTR, cntl);
intel_crtc->cursor_visible = visible;
}
bool visible = base != 0;
if (intel_crtc->cursor_visible != visible) {
- uint32_t cntl = I915_READ(pipe == 0 ? CURACNTR : CURBCNTR);
+ uint32_t cntl = I915_READ(CURCNTR(pipe));
if (base) {
cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
cntl |= CURSOR_MODE_DISABLE;
}
- I915_WRITE(pipe == 0 ? CURACNTR : CURBCNTR, cntl);
+ I915_WRITE(CURCNTR(pipe), cntl);
intel_crtc->cursor_visible = visible;
}
/* and commit changes on next vblank */
- I915_WRITE(pipe == 0 ? CURABASE : CURBBASE, base);
+ I915_WRITE(CURBASE(pipe), base);
}
/* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
if (!visible && !intel_crtc->cursor_visible)
return;
- I915_WRITE(pipe == 0 ? CURAPOS : CURBPOS, pos);
+ I915_WRITE(CURPOS(pipe), pos);
if (IS_845G(dev) || IS_I865G(dev))
i845_update_cursor(crtc, base);
else
}
obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
- if (!obj)
+ if (&obj->base == NULL)
return -ENOENT;
if (obj->base.size < width * height * 4) {
704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
};
-struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
- struct drm_connector *connector,
- struct drm_display_mode *mode,
- int *dpms_mode)
+static struct drm_framebuffer *
+intel_framebuffer_create(struct drm_device *dev,
+ struct drm_mode_fb_cmd *mode_cmd,
+ struct drm_i915_gem_object *obj)
+{
+ struct intel_framebuffer *intel_fb;
+ int ret;
+
+ intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
+ if (!intel_fb) {
+ drm_gem_object_unreference_unlocked(&obj->base);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
+ if (ret) {
+ drm_gem_object_unreference_unlocked(&obj->base);
+ kfree(intel_fb);
+ return ERR_PTR(ret);
+ }
+
+ return &intel_fb->base;
+}
+
+static u32
+intel_framebuffer_pitch_for_width(int width, int bpp)
+{
+ u32 pitch = DIV_ROUND_UP(width * bpp, 8);
+ return ALIGN(pitch, 64);
+}
+
+static u32
+intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
+{
+ u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
+ return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
+}
+
+static struct drm_framebuffer *
+intel_framebuffer_create_for_mode(struct drm_device *dev,
+ struct drm_display_mode *mode,
+ int depth, int bpp)
+{
+ struct drm_i915_gem_object *obj;
+ struct drm_mode_fb_cmd mode_cmd;
+
+ obj = i915_gem_alloc_object(dev,
+ intel_framebuffer_size_for_mode(mode, bpp));
+ if (obj == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ mode_cmd.width = mode->hdisplay;
+ mode_cmd.height = mode->vdisplay;
+ mode_cmd.depth = depth;
+ mode_cmd.bpp = bpp;
+ mode_cmd.pitch = intel_framebuffer_pitch_for_width(mode_cmd.width, bpp);
+
+ return intel_framebuffer_create(dev, &mode_cmd, obj);
+}
+
+static struct drm_framebuffer *
+mode_fits_in_fbdev(struct drm_device *dev,
+ struct drm_display_mode *mode)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_gem_object *obj;
+ struct drm_framebuffer *fb;
+
+ if (dev_priv->fbdev == NULL)
+ return NULL;
+
+ obj = dev_priv->fbdev->ifb.obj;
+ if (obj == NULL)
+ return NULL;
+
+ fb = &dev_priv->fbdev->ifb.base;
+ if (fb->pitch < intel_framebuffer_pitch_for_width(mode->hdisplay,
+ fb->bits_per_pixel))
+ return NULL;
+
+ if (obj->base.size < mode->vdisplay * fb->pitch)
+ return NULL;
+
+ return fb;
+}
+
+bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode,
+ struct intel_load_detect_pipe *old)
{
struct intel_crtc *intel_crtc;
struct drm_crtc *possible_crtc;
- struct drm_crtc *supported_crtc =NULL;
struct drm_encoder *encoder = &intel_encoder->base;
struct drm_crtc *crtc = NULL;
struct drm_device *dev = encoder->dev;
- struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
- struct drm_crtc_helper_funcs *crtc_funcs;
+ struct drm_framebuffer *old_fb;
int i = -1;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector),
+ encoder->base.id, drm_get_encoder_name(encoder));
+
/*
* Algorithm gets a little messy:
+ *
* - if the connector already has an assigned crtc, use it (but make
* sure it's on first)
+ *
* - try to find the first unused crtc that can drive this connector,
* and use that if we find one
- * - if there are no unused crtcs available, try to use the first
- * one we found that supports the connector
*/
/* See if we already have a CRTC for this connector */
if (encoder->crtc) {
crtc = encoder->crtc;
- /* Make sure the crtc and connector are running */
+
intel_crtc = to_intel_crtc(crtc);
- *dpms_mode = intel_crtc->dpms_mode;
+ old->dpms_mode = intel_crtc->dpms_mode;
+ old->load_detect_temp = false;
+
+ /* Make sure the crtc and connector are running */
if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) {
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+
crtc_funcs = crtc->helper_private;
crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+
+ encoder_funcs = encoder->helper_private;
encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
}
- return crtc;
+
+ return true;
}
/* Find an unused one (if possible) */
crtc = possible_crtc;
break;
}
- if (!supported_crtc)
- supported_crtc = possible_crtc;
}
/*
* If we didn't find an unused CRTC, don't use any.
*/
if (!crtc) {
- return NULL;
+ DRM_DEBUG_KMS("no pipe available for load-detect\n");
+ return false;
}
encoder->crtc = crtc;
connector->encoder = encoder;
- intel_encoder->load_detect_temp = true;
intel_crtc = to_intel_crtc(crtc);
- *dpms_mode = intel_crtc->dpms_mode;
+ old->dpms_mode = intel_crtc->dpms_mode;
+ old->load_detect_temp = true;
+ old->release_fb = NULL;
- if (!crtc->enabled) {
- if (!mode)
- mode = &load_detect_mode;
- drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb);
- } else {
- if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) {
- crtc_funcs = crtc->helper_private;
- crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
- }
+ if (!mode)
+ mode = &load_detect_mode;
+
+ old_fb = crtc->fb;
+
+ /* We need a framebuffer large enough to accommodate all accesses
+ * that the plane may generate whilst we perform load detection.
+ * We can not rely on the fbcon either being present (we get called
+ * during its initialisation to detect all boot displays, or it may
+ * not even exist) or that it is large enough to satisfy the
+ * requested mode.
+ */
+ crtc->fb = mode_fits_in_fbdev(dev, mode);
+ if (crtc->fb == NULL) {
+ DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
+ crtc->fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
+ old->release_fb = crtc->fb;
+ } else
+ DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
+ if (IS_ERR(crtc->fb)) {
+ DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
+ crtc->fb = old_fb;
+ return false;
+ }
- /* Add this connector to the crtc */
- encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->mode);
- encoder_funcs->commit(encoder);
+ if (!drm_crtc_helper_set_mode(crtc, mode, 0, 0, old_fb)) {
+ DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
+ if (old->release_fb)
+ old->release_fb->funcs->destroy(old->release_fb);
+ crtc->fb = old_fb;
+ return false;
}
+
/* let the connector get through one full cycle before testing */
intel_wait_for_vblank(dev, intel_crtc->pipe);
- return crtc;
+ return true;
}
void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
- struct drm_connector *connector, int dpms_mode)
+ struct drm_connector *connector,
+ struct intel_load_detect_pipe *old)
{
struct drm_encoder *encoder = &intel_encoder->base;
struct drm_device *dev = encoder->dev;
struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
- if (intel_encoder->load_detect_temp) {
- encoder->crtc = NULL;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector),
+ encoder->base.id, drm_get_encoder_name(encoder));
+
+ if (old->load_detect_temp) {
connector->encoder = NULL;
- intel_encoder->load_detect_temp = false;
- crtc->enabled = drm_helper_crtc_in_use(crtc);
drm_helper_disable_unused_functions(dev);
+
+ if (old->release_fb)
+ old->release_fb->funcs->destroy(old->release_fb);
+
+ return;
}
/* Switch crtc and encoder back off if necessary */
- if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) {
- if (encoder->crtc == crtc)
- encoder_funcs->dpms(encoder, dpms_mode);
- crtc_funcs->dpms(crtc, dpms_mode);
+ if (old->dpms_mode != DRM_MODE_DPMS_ON) {
+ encoder_funcs->dpms(encoder, old->dpms_mode);
+ crtc_funcs->dpms(crtc, old->dpms_mode);
}
}
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- u32 dpll = I915_READ((pipe == 0) ? DPLL_A : DPLL_B);
+ u32 dpll = I915_READ(DPLL(pipe));
u32 fp;
intel_clock_t clock;
if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
- fp = I915_READ((pipe == 0) ? FPA0 : FPB0);
+ fp = I915_READ(FP0(pipe));
else
- fp = I915_READ((pipe == 0) ? FPA1 : FPB1);
+ fp = I915_READ(FP1(pipe));
clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
if (IS_PINEVIEW(dev)) {
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
struct drm_display_mode *mode;
- int htot = I915_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B);
- int hsync = I915_READ((pipe == 0) ? HSYNC_A : HSYNC_B);
- int vtot = I915_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B);
- int vsync = I915_READ((pipe == 0) ? VSYNC_A : VSYNC_B);
+ int htot = I915_READ(HTOTAL(pipe));
+ int hsync = I915_READ(HSYNC(pipe));
+ int vtot = I915_READ(VTOTAL(pipe));
+ int vsync = I915_READ(VSYNC(pipe));
mode = kzalloc(sizeof(*mode), GFP_KERNEL);
if (!mode)
dpll &= ~DISPLAY_RATE_SELECT_FPA1;
I915_WRITE(dpll_reg, dpll);
- POSTING_READ(dpll_reg);
intel_wait_for_vblank(dev, pipe);
dpll = I915_READ(dpll_reg);
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
+ int dpll_reg = DPLL(pipe);
int dpll = I915_READ(dpll_reg);
if (HAS_PCH_SPLIT(dev))
dpll |= DISPLAY_RATE_SELECT_FPA1;
I915_WRITE(dpll_reg, dpll);
- dpll = I915_READ(dpll_reg);
intel_wait_for_vblank(dev, pipe);
dpll = I915_READ(dpll_reg);
if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
struct drm_device *dev = dev_priv->dev;
struct drm_crtc *crtc;
struct intel_crtc *intel_crtc;
- int enabled = 0;
if (!i915_powersave)
return;
if (!crtc->fb)
continue;
- enabled++;
intel_crtc = to_intel_crtc(crtc);
if (!intel_crtc->busy)
intel_decrease_pllclock(crtc);
}
- if ((enabled == 1) && (IS_I945G(dev) || IS_I945GM(dev))) {
- DRM_DEBUG_DRIVER("enable memory self refresh on 945\n");
- I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
- }
mutex_unlock(&dev->struct_mutex);
}
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return;
- if (!dev_priv->busy) {
- if (IS_I945G(dev) || IS_I945GM(dev)) {
- u32 fw_blc_self;
-
- DRM_DEBUG_DRIVER("disable memory self refresh on 945\n");
- fw_blc_self = I915_READ(FW_BLC_SELF);
- fw_blc_self &= ~FW_BLC_SELF_EN;
- I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK);
- }
+ if (!dev_priv->busy)
dev_priv->busy = true;
- } else
+ else
mod_timer(&dev_priv->idle_timer, jiffies +
msecs_to_jiffies(GPU_IDLE_TIMEOUT));
intel_fb = to_intel_framebuffer(crtc->fb);
if (intel_fb->obj == obj) {
if (!intel_crtc->busy) {
- if (IS_I945G(dev) || IS_I945GM(dev)) {
- u32 fw_blc_self;
-
- DRM_DEBUG_DRIVER("disable memory self refresh on 945\n");
- fw_blc_self = I915_READ(FW_BLC_SELF);
- fw_blc_self &= ~FW_BLC_SELF_EN;
- I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK);
- }
/* Non-busy -> busy, upclock */
intel_increase_pllclock(crtc);
intel_crtc->busy = true;
* pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
*/
pf = 0;
- pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff;
+ pipesrc = I915_READ(PIPESRC(pipe)) & 0x0fff0fff;
OUT_RING(pf | pipesrc);
break;
case 6:
+ case 7:
OUT_RING(MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
OUT_RING(fb->pitch | obj->tiling_mode);
OUT_RING(obj->gtt_offset);
- pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
- pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff;
+ pf = I915_READ(PF_CTL(pipe)) & PF_ENABLE;
+ pipesrc = I915_READ(PIPESRC(pipe)) & 0x0fff0fff;
OUT_RING(pf | pipesrc);
break;
}
return ret;
}
-static struct drm_crtc_helper_funcs intel_helper_funcs = {
- .dpms = intel_crtc_dpms,
- .mode_fixup = intel_crtc_mode_fixup,
- .mode_set = intel_crtc_mode_set,
- .mode_set_base = intel_pipe_set_base,
- .mode_set_base_atomic = intel_pipe_set_base_atomic,
- .load_lut = intel_crtc_load_lut,
- .disable = intel_crtc_disable,
-};
-
-static const struct drm_crtc_funcs intel_crtc_funcs = {
- .cursor_set = intel_crtc_cursor_set,
- .cursor_move = intel_crtc_cursor_move,
- .gamma_set = intel_crtc_gamma_set,
- .set_config = drm_crtc_helper_set_config,
- .destroy = intel_crtc_destroy,
- .page_flip = intel_crtc_page_flip,
-};
-
static void intel_sanitize_modesetting(struct drm_device *dev,
int pipe, int plane)
{
pipe = !pipe;
/* Disable the plane and wait for it to stop reading from the pipe. */
- I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
- intel_flush_display_plane(dev, plane);
+ intel_disable_plane(dev_priv, plane, pipe);
+ intel_disable_pipe(dev_priv, pipe);
+}
- if (IS_GEN2(dev))
- intel_wait_for_vblank(dev, pipe);
+static void intel_crtc_reset(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- if (pipe == 0 && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
- return;
+ /* Reset flags back to the 'unknown' status so that they
+ * will be correctly set on the initial modeset.
+ */
+ intel_crtc->dpms_mode = -1;
- /* Switch off the pipe. */
- reg = PIPECONF(pipe);
- val = I915_READ(reg);
- if (val & PIPECONF_ENABLE) {
- I915_WRITE(reg, val & ~PIPECONF_ENABLE);
- intel_wait_for_pipe_off(dev, pipe);
- }
+ /* We need to fix up any BIOS configuration that conflicts with
+ * our expectations.
+ */
+ intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane);
}
+static struct drm_crtc_helper_funcs intel_helper_funcs = {
+ .dpms = intel_crtc_dpms,
+ .mode_fixup = intel_crtc_mode_fixup,
+ .mode_set = intel_crtc_mode_set,
+ .mode_set_base = intel_pipe_set_base,
+ .mode_set_base_atomic = intel_pipe_set_base_atomic,
+ .load_lut = intel_crtc_load_lut,
+ .disable = intel_crtc_disable,
+};
+
+static const struct drm_crtc_funcs intel_crtc_funcs = {
+ .reset = intel_crtc_reset,
+ .cursor_set = intel_crtc_cursor_set,
+ .cursor_move = intel_crtc_cursor_move,
+ .gamma_set = intel_crtc_gamma_set,
+ .set_config = drm_crtc_helper_set_config,
+ .destroy = intel_crtc_destroy,
+ .page_flip = intel_crtc_page_flip,
+};
+
static void intel_crtc_init(struct drm_device *dev, int pipe)
{
drm_i915_private_t *dev_priv = dev->dev_private;
dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
- intel_crtc->cursor_addr = 0;
- intel_crtc->dpms_mode = -1;
+ intel_crtc_reset(&intel_crtc->base);
intel_crtc->active = true; /* force the pipe off on setup_init_config */
if (HAS_PCH_SPLIT(dev)) {
setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer,
(unsigned long)intel_crtc);
-
- intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane);
}
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
}
intel_panel_setup_backlight(dev);
+
+ /* disable all the possible outputs/crtcs before entering KMS mode */
+ drm_helper_disable_unused_functions(dev);
}
static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
struct drm_mode_fb_cmd *mode_cmd)
{
struct drm_i915_gem_object *obj;
- struct intel_framebuffer *intel_fb;
- int ret;
obj = to_intel_bo(drm_gem_object_lookup(dev, filp, mode_cmd->handle));
- if (!obj)
+ if (&obj->base == NULL)
return ERR_PTR(-ENOENT);
- intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
- if (!intel_fb)
- return ERR_PTR(-ENOMEM);
-
- ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
- if (ret) {
- drm_gem_object_unreference_unlocked(&obj->base);
- kfree(intel_fb);
- return ERR_PTR(ret);
- }
-
- return &intel_fb->base;
+ return intel_framebuffer_create(dev, mode_cmd, obj);
}
static const struct drm_mode_config_funcs intel_mode_funcs = {
struct drm_i915_gem_object *ctx;
int ret;
+ WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+
ctx = i915_gem_alloc_object(dev, 4096);
if (!ctx) {
DRM_DEBUG("failed to alloc power context, RC6 disabled\n");
return NULL;
}
- mutex_lock(&dev->struct_mutex);
ret = i915_gem_object_pin(ctx, 4096, true);
if (ret) {
DRM_ERROR("failed to pin power context: %d\n", ret);
DRM_ERROR("failed to set-domain on power context: %d\n", ret);
goto err_unpin;
}
- mutex_unlock(&dev->struct_mutex);
return ctx;
I915_WRITE(GEN6_RPNSWREQ, 1 << 31);
I915_WRITE(GEN6_PMINTRMSK, 0xffffffff);
I915_WRITE(GEN6_PMIER, 0);
+
+ spin_lock_irq(&dev_priv->rps_lock);
+ dev_priv->pm_iir = 0;
+ spin_unlock_irq(&dev_priv->rps_lock);
+
I915_WRITE(GEN6_PMIIR, I915_READ(GEN6_PMIIR));
}
{
u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
- u32 pcu_mbox;
+ u32 pcu_mbox, rc6_mask = 0;
int cur_freq, min_freq, max_freq;
int i;
* userspace...
*/
I915_WRITE(GEN6_RC_STATE, 0);
- __gen6_force_wake_get(dev_priv);
+ mutex_lock(&dev_priv->dev->struct_mutex);
+ gen6_gt_force_wake_get(dev_priv);
/* disable the counters and set deterministic thresholds */
I915_WRITE(GEN6_RC_CONTROL, 0);
I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
+ if (i915_enable_rc6)
+ rc6_mask = GEN6_RC_CTL_RC6p_ENABLE |
+ GEN6_RC_CTL_RC6_ENABLE;
+
I915_WRITE(GEN6_RC_CONTROL,
- GEN6_RC_CTL_RC6p_ENABLE |
- GEN6_RC_CTL_RC6_ENABLE |
+ rc6_mask |
GEN6_RC_CTL_EI_MODE(1) |
GEN6_RC_CTL_HW_ENABLE);
I915_WRITE(GEN6_RP_INTERRUPT_LIMITS,
18 << 24 |
6 << 16);
- I915_WRITE(GEN6_RP_UP_THRESHOLD, 90000);
- I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 100000);
+ I915_WRITE(GEN6_RP_UP_THRESHOLD, 10000);
+ I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 1000000);
I915_WRITE(GEN6_RP_UP_EI, 100000);
- I915_WRITE(GEN6_RP_DOWN_EI, 300000);
+ I915_WRITE(GEN6_RP_DOWN_EI, 5000000);
I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
I915_WRITE(GEN6_RP_CONTROL,
GEN6_RP_MEDIA_TURBO |
GEN6_RP_USE_NORMAL_FREQ |
GEN6_RP_MEDIA_IS_GFX |
GEN6_RP_ENABLE |
- GEN6_RP_UP_BUSY_MAX |
- GEN6_RP_DOWN_BUSY_MIN);
+ GEN6_RP_UP_BUSY_AVG |
+ GEN6_RP_DOWN_IDLE_CONT);
if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0,
500))
DRM_ERROR("timeout waiting for pcode mailbox to finish\n");
if (pcu_mbox & (1<<31)) { /* OC supported */
max_freq = pcu_mbox & 0xff;
- DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 100);
+ DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 50);
}
/* In units of 100MHz */
GEN6_PM_RP_DOWN_THRESHOLD |
GEN6_PM_RP_UP_EI_EXPIRED |
GEN6_PM_RP_DOWN_EI_EXPIRED);
+ spin_lock_irq(&dev_priv->rps_lock);
+ WARN_ON(dev_priv->pm_iir != 0);
I915_WRITE(GEN6_PMIMR, 0);
+ spin_unlock_irq(&dev_priv->rps_lock);
/* enable all PM interrupts */
I915_WRITE(GEN6_PMINTRMSK, 0);
- __gen6_force_wake_put(dev_priv);
+ gen6_gt_force_wake_put(dev_priv);
+ mutex_unlock(&dev_priv->dev->struct_mutex);
}
-void intel_enable_clock_gating(struct drm_device *dev)
+static void ironlake_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE;
+
+ /* Required for FBC */
+ dspclk_gate |= DPFCUNIT_CLOCK_GATE_DISABLE |
+ DPFCRUNIT_CLOCK_GATE_DISABLE |
+ DPFDUNIT_CLOCK_GATE_DISABLE;
+ /* Required for CxSR */
+ dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE;
+
+ I915_WRITE(PCH_3DCGDIS0,
+ MARIUNIT_CLOCK_GATE_DISABLE |
+ SVSMUNIT_CLOCK_GATE_DISABLE);
+ I915_WRITE(PCH_3DCGDIS1,
+ VFMUNIT_CLOCK_GATE_DISABLE);
+
+ I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate);
/*
- * Disable clock gating reported to work incorrectly according to the
- * specs, but enable as much else as we can.
+ * According to the spec the following bits should be set in
+ * order to enable memory self-refresh
+ * The bit 22/21 of 0x42004
+ * The bit 5 of 0x42020
+ * The bit 15 of 0x45000
*/
- if (HAS_PCH_SPLIT(dev)) {
- uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE;
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ (I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_DPARB_GATE | ILK_VSDPFD_FULL));
+ I915_WRITE(ILK_DSPCLK_GATE,
+ (I915_READ(ILK_DSPCLK_GATE) |
+ ILK_DPARB_CLK_GATE));
+ I915_WRITE(DISP_ARB_CTL,
+ (I915_READ(DISP_ARB_CTL) |
+ DISP_FBC_WM_DIS));
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
- if (IS_GEN5(dev)) {
- /* Required for FBC */
- dspclk_gate |= DPFDUNIT_CLOCK_GATE_DISABLE;
- /* Required for CxSR */
- dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE;
-
- I915_WRITE(PCH_3DCGDIS0,
- MARIUNIT_CLOCK_GATE_DISABLE |
- SVSMUNIT_CLOCK_GATE_DISABLE);
- I915_WRITE(PCH_3DCGDIS1,
- VFMUNIT_CLOCK_GATE_DISABLE);
- }
+ /*
+ * Based on the document from hardware guys the following bits
+ * should be set unconditionally in order to enable FBC.
+ * The bit 22 of 0x42000
+ * The bit 22 of 0x42004
+ * The bit 7,8,9 of 0x42020.
+ */
+ if (IS_IRONLAKE_M(dev)) {
+ I915_WRITE(ILK_DISPLAY_CHICKEN1,
+ I915_READ(ILK_DISPLAY_CHICKEN1) |
+ ILK_FBCQ_DIS);
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_DPARB_GATE);
+ I915_WRITE(ILK_DSPCLK_GATE,
+ I915_READ(ILK_DSPCLK_GATE) |
+ ILK_DPFC_DIS1 |
+ ILK_DPFC_DIS2 |
+ ILK_CLK_FBC);
+ }
- I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate);
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_ELPIN_409_SELECT);
+ I915_WRITE(_3D_CHICKEN2,
+ _3D_CHICKEN2_WM_READ_PIPELINED << 16 |
+ _3D_CHICKEN2_WM_READ_PIPELINED);
+}
- /*
- * On Ibex Peak and Cougar Point, we need to disable clock
- * gating for the panel power sequencer or it will fail to
- * start up when no ports are active.
- */
- I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE);
+static void gen6_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int pipe;
+ uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE;
- /*
- * According to the spec the following bits should be set in
- * order to enable memory self-refresh
- * The bit 22/21 of 0x42004
- * The bit 5 of 0x42020
- * The bit 15 of 0x45000
- */
- if (IS_GEN5(dev)) {
- I915_WRITE(ILK_DISPLAY_CHICKEN2,
- (I915_READ(ILK_DISPLAY_CHICKEN2) |
- ILK_DPARB_GATE | ILK_VSDPFD_FULL));
- I915_WRITE(ILK_DSPCLK_GATE,
- (I915_READ(ILK_DSPCLK_GATE) |
- ILK_DPARB_CLK_GATE));
- I915_WRITE(DISP_ARB_CTL,
- (I915_READ(DISP_ARB_CTL) |
- DISP_FBC_WM_DIS));
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
- }
- /*
- * Based on the document from hardware guys the following bits
- * should be set unconditionally in order to enable FBC.
- * The bit 22 of 0x42000
- * The bit 22 of 0x42004
- * The bit 7,8,9 of 0x42020.
- */
- if (IS_IRONLAKE_M(dev)) {
- I915_WRITE(ILK_DISPLAY_CHICKEN1,
- I915_READ(ILK_DISPLAY_CHICKEN1) |
- ILK_FBCQ_DIS);
- I915_WRITE(ILK_DISPLAY_CHICKEN2,
- I915_READ(ILK_DISPLAY_CHICKEN2) |
- ILK_DPARB_GATE);
- I915_WRITE(ILK_DSPCLK_GATE,
- I915_READ(ILK_DSPCLK_GATE) |
- ILK_DPFC_DIS1 |
- ILK_DPFC_DIS2 |
- ILK_CLK_FBC);
- }
+ I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate);
- I915_WRITE(ILK_DISPLAY_CHICKEN2,
- I915_READ(ILK_DISPLAY_CHICKEN2) |
- ILK_ELPIN_409_SELECT);
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_ELPIN_409_SELECT);
- if (IS_GEN5(dev)) {
- I915_WRITE(_3D_CHICKEN2,
- _3D_CHICKEN2_WM_READ_PIPELINED << 16 |
- _3D_CHICKEN2_WM_READ_PIPELINED);
- }
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
- if (IS_GEN6(dev)) {
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ /*
+ * According to the spec the following bits should be
+ * set in order to enable memory self-refresh and fbc:
+ * The bit21 and bit22 of 0x42000
+ * The bit21 and bit22 of 0x42004
+ * The bit5 and bit7 of 0x42020
+ * The bit14 of 0x70180
+ * The bit14 of 0x71180
+ */
+ I915_WRITE(ILK_DISPLAY_CHICKEN1,
+ I915_READ(ILK_DISPLAY_CHICKEN1) |
+ ILK_FBCQ_DIS | ILK_PABSTRETCH_DIS);
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_DPARB_GATE | ILK_VSDPFD_FULL);
+ I915_WRITE(ILK_DSPCLK_GATE,
+ I915_READ(ILK_DSPCLK_GATE) |
+ ILK_DPARB_CLK_GATE |
+ ILK_DPFD_CLK_GATE);
- /*
- * According to the spec the following bits should be
- * set in order to enable memory self-refresh and fbc:
- * The bit21 and bit22 of 0x42000
- * The bit21 and bit22 of 0x42004
- * The bit5 and bit7 of 0x42020
- * The bit14 of 0x70180
- * The bit14 of 0x71180
- */
- I915_WRITE(ILK_DISPLAY_CHICKEN1,
- I915_READ(ILK_DISPLAY_CHICKEN1) |
- ILK_FBCQ_DIS | ILK_PABSTRETCH_DIS);
- I915_WRITE(ILK_DISPLAY_CHICKEN2,
- I915_READ(ILK_DISPLAY_CHICKEN2) |
- ILK_DPARB_GATE | ILK_VSDPFD_FULL);
- I915_WRITE(ILK_DSPCLK_GATE,
- I915_READ(ILK_DSPCLK_GATE) |
- ILK_DPARB_CLK_GATE |
- ILK_DPFD_CLK_GATE);
-
- I915_WRITE(DSPACNTR,
- I915_READ(DSPACNTR) |
- DISPPLANE_TRICKLE_FEED_DISABLE);
- I915_WRITE(DSPBCNTR,
- I915_READ(DSPBCNTR) |
- DISPPLANE_TRICKLE_FEED_DISABLE);
- }
- } else if (IS_G4X(dev)) {
- uint32_t dspclk_gate;
- I915_WRITE(RENCLK_GATE_D1, 0);
- I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE |
- GS_UNIT_CLOCK_GATE_DISABLE |
- CL_UNIT_CLOCK_GATE_DISABLE);
- I915_WRITE(RAMCLK_GATE_D, 0);
- dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE |
- OVRUNIT_CLOCK_GATE_DISABLE |
- OVCUNIT_CLOCK_GATE_DISABLE;
- if (IS_GM45(dev))
- dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE;
- I915_WRITE(DSPCLK_GATE_D, dspclk_gate);
- } else if (IS_CRESTLINE(dev)) {
- I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE);
- I915_WRITE(RENCLK_GATE_D2, 0);
- I915_WRITE(DSPCLK_GATE_D, 0);
- I915_WRITE(RAMCLK_GATE_D, 0);
- I915_WRITE16(DEUC, 0);
- } else if (IS_BROADWATER(dev)) {
- I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE |
- I965_RCC_CLOCK_GATE_DISABLE |
- I965_RCPB_CLOCK_GATE_DISABLE |
- I965_ISC_CLOCK_GATE_DISABLE |
- I965_FBC_CLOCK_GATE_DISABLE);
- I915_WRITE(RENCLK_GATE_D2, 0);
- } else if (IS_GEN3(dev)) {
- u32 dstate = I915_READ(D_STATE);
+ for_each_pipe(pipe)
+ I915_WRITE(DSPCNTR(pipe),
+ I915_READ(DSPCNTR(pipe)) |
+ DISPPLANE_TRICKLE_FEED_DISABLE);
+}
- dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING |
- DSTATE_DOT_CLOCK_GATING;
- I915_WRITE(D_STATE, dstate);
- } else if (IS_I85X(dev) || IS_I865G(dev)) {
- I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE);
- } else if (IS_I830(dev)) {
- I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE);
- }
+static void ivybridge_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int pipe;
+ uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE;
+
+ I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate);
+
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
+
+ I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
+
+ for_each_pipe(pipe)
+ I915_WRITE(DSPCNTR(pipe),
+ I915_READ(DSPCNTR(pipe)) |
+ DISPPLANE_TRICKLE_FEED_DISABLE);
}
-void intel_disable_clock_gating(struct drm_device *dev)
+static void g4x_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ uint32_t dspclk_gate;
- if (dev_priv->renderctx) {
- struct drm_i915_gem_object *obj = dev_priv->renderctx;
+ I915_WRITE(RENCLK_GATE_D1, 0);
+ I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE |
+ GS_UNIT_CLOCK_GATE_DISABLE |
+ CL_UNIT_CLOCK_GATE_DISABLE);
+ I915_WRITE(RAMCLK_GATE_D, 0);
+ dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE |
+ OVRUNIT_CLOCK_GATE_DISABLE |
+ OVCUNIT_CLOCK_GATE_DISABLE;
+ if (IS_GM45(dev))
+ dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE;
+ I915_WRITE(DSPCLK_GATE_D, dspclk_gate);
+}
+
+static void crestline_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE);
+ I915_WRITE(RENCLK_GATE_D2, 0);
+ I915_WRITE(DSPCLK_GATE_D, 0);
+ I915_WRITE(RAMCLK_GATE_D, 0);
+ I915_WRITE16(DEUC, 0);
+}
+
+static void broadwater_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE |
+ I965_RCC_CLOCK_GATE_DISABLE |
+ I965_RCPB_CLOCK_GATE_DISABLE |
+ I965_ISC_CLOCK_GATE_DISABLE |
+ I965_FBC_CLOCK_GATE_DISABLE);
+ I915_WRITE(RENCLK_GATE_D2, 0);
+}
+
+static void gen3_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 dstate = I915_READ(D_STATE);
+
+ dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING |
+ DSTATE_DOT_CLOCK_GATING;
+ I915_WRITE(D_STATE, dstate);
+}
+
+static void i85x_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE);
+}
+
+static void i830_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE);
+}
+
+static void ibx_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
- I915_WRITE(CCID, 0);
- POSTING_READ(CCID);
+ /*
+ * On Ibex Peak and Cougar Point, we need to disable clock
+ * gating for the panel power sequencer or it will fail to
+ * start up when no ports are active.
+ */
+ I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE);
+}
+
+static void cpt_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /*
+ * On Ibex Peak and Cougar Point, we need to disable clock
+ * gating for the panel power sequencer or it will fail to
+ * start up when no ports are active.
+ */
+ I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE);
+ I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) |
+ DPLS_EDP_PPS_FIX_DIS);
+}
+
+static void ironlake_teardown_rc6(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
- i915_gem_object_unpin(obj);
- drm_gem_object_unreference(&obj->base);
+ if (dev_priv->renderctx) {
+ i915_gem_object_unpin(dev_priv->renderctx);
+ drm_gem_object_unreference(&dev_priv->renderctx->base);
dev_priv->renderctx = NULL;
}
if (dev_priv->pwrctx) {
- struct drm_i915_gem_object *obj = dev_priv->pwrctx;
+ i915_gem_object_unpin(dev_priv->pwrctx);
+ drm_gem_object_unreference(&dev_priv->pwrctx->base);
+ dev_priv->pwrctx = NULL;
+ }
+}
+
+static void ironlake_disable_rc6(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (I915_READ(PWRCTXA)) {
+ /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */
+ I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT);
+ wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON),
+ 50);
I915_WRITE(PWRCTXA, 0);
POSTING_READ(PWRCTXA);
- i915_gem_object_unpin(obj);
- drm_gem_object_unreference(&obj->base);
- dev_priv->pwrctx = NULL;
+ I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT);
+ POSTING_READ(RSTDBYCTL);
}
+
+ ironlake_teardown_rc6(dev);
}
-static void ironlake_disable_rc6(struct drm_device *dev)
+static int ironlake_setup_rc6(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */
- I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT);
- wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON),
- 10);
- POSTING_READ(CCID);
- I915_WRITE(PWRCTXA, 0);
- POSTING_READ(PWRCTXA);
- I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT);
- POSTING_READ(RSTDBYCTL);
- i915_gem_object_unpin(dev_priv->renderctx);
- drm_gem_object_unreference(&dev_priv->renderctx->base);
- dev_priv->renderctx = NULL;
- i915_gem_object_unpin(dev_priv->pwrctx);
- drm_gem_object_unreference(&dev_priv->pwrctx->base);
- dev_priv->pwrctx = NULL;
+ if (dev_priv->renderctx == NULL)
+ dev_priv->renderctx = intel_alloc_context_page(dev);
+ if (!dev_priv->renderctx)
+ return -ENOMEM;
+
+ if (dev_priv->pwrctx == NULL)
+ dev_priv->pwrctx = intel_alloc_context_page(dev);
+ if (!dev_priv->pwrctx) {
+ ironlake_teardown_rc6(dev);
+ return -ENOMEM;
+ }
+
+ return 0;
}
void ironlake_enable_rc6(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
+ /* rc6 disabled by default due to repeated reports of hanging during
+ * boot and resume.
+ */
+ if (!i915_enable_rc6)
+ return;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = ironlake_setup_rc6(dev);
+ if (ret) {
+ mutex_unlock(&dev->struct_mutex);
+ return;
+ }
+
/*
* GPU can automatically power down the render unit if given a page
* to save state.
*/
ret = BEGIN_LP_RING(6);
if (ret) {
- ironlake_disable_rc6(dev);
+ ironlake_teardown_rc6(dev);
+ mutex_unlock(&dev->struct_mutex);
return;
}
+
OUT_RING(MI_SUSPEND_FLUSH | MI_SUSPEND_FLUSH_EN);
OUT_RING(MI_SET_CONTEXT);
OUT_RING(dev_priv->renderctx->gtt_offset |
OUT_RING(MI_FLUSH);
ADVANCE_LP_RING();
+ /*
+ * Wait for the command parser to advance past MI_SET_CONTEXT. The HW
+ * does an implicit flush, combined with MI_FLUSH above, it should be
+ * safe to assume that renderctx is valid
+ */
+ ret = intel_wait_ring_idle(LP_RING(dev_priv));
+ if (ret) {
+ DRM_ERROR("failed to enable ironlake power power savings\n");
+ ironlake_teardown_rc6(dev);
+ mutex_unlock(&dev->struct_mutex);
+ return;
+ }
+
I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN);
I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+void intel_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ dev_priv->display.init_clock_gating(dev);
+
+ if (dev_priv->display.init_pch_clock_gating)
+ dev_priv->display.init_pch_clock_gating(dev);
}
/* Set up chip specific display functions */
struct drm_i915_private *dev_priv = dev->dev_private;
/* We always want a DPMS function */
- if (HAS_PCH_SPLIT(dev))
+ if (HAS_PCH_SPLIT(dev)) {
dev_priv->display.dpms = ironlake_crtc_dpms;
- else
+ dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
+ } else {
dev_priv->display.dpms = i9xx_crtc_dpms;
+ dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
+ }
if (I915_HAS_FBC(dev)) {
if (HAS_PCH_SPLIT(dev)) {
/* For FIFO watermark updates */
if (HAS_PCH_SPLIT(dev)) {
+ if (HAS_PCH_IBX(dev))
+ dev_priv->display.init_pch_clock_gating = ibx_init_clock_gating;
+ else if (HAS_PCH_CPT(dev))
+ dev_priv->display.init_pch_clock_gating = cpt_init_clock_gating;
+
if (IS_GEN5(dev)) {
if (I915_READ(MLTR_ILK) & ILK_SRLT_MASK)
dev_priv->display.update_wm = ironlake_update_wm;
"Disable CxSR\n");
dev_priv->display.update_wm = NULL;
}
+ dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
+ dev_priv->display.init_clock_gating = ironlake_init_clock_gating;
} else if (IS_GEN6(dev)) {
if (SNB_READ_WM0_LATENCY()) {
dev_priv->display.update_wm = sandybridge_update_wm;
"Disable CxSR\n");
dev_priv->display.update_wm = NULL;
}
+ dev_priv->display.fdi_link_train = gen6_fdi_link_train;
+ dev_priv->display.init_clock_gating = gen6_init_clock_gating;
+ } else if (IS_IVYBRIDGE(dev)) {
+ /* FIXME: detect B0+ stepping and use auto training */
+ dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
+ if (SNB_READ_WM0_LATENCY()) {
+ dev_priv->display.update_wm = sandybridge_update_wm;
+ } else {
+ DRM_DEBUG_KMS("Failed to read display plane latency. "
+ "Disable CxSR\n");
+ dev_priv->display.update_wm = NULL;
+ }
+ dev_priv->display.init_clock_gating = ivybridge_init_clock_gating;
+
} else
dev_priv->display.update_wm = NULL;
} else if (IS_PINEVIEW(dev)) {
dev_priv->display.update_wm = NULL;
} else
dev_priv->display.update_wm = pineview_update_wm;
- } else if (IS_G4X(dev))
+ } else if (IS_G4X(dev)) {
dev_priv->display.update_wm = g4x_update_wm;
- else if (IS_GEN4(dev))
+ dev_priv->display.init_clock_gating = g4x_init_clock_gating;
+ } else if (IS_GEN4(dev)) {
dev_priv->display.update_wm = i965_update_wm;
- else if (IS_GEN3(dev)) {
+ if (IS_CRESTLINE(dev))
+ dev_priv->display.init_clock_gating = crestline_init_clock_gating;
+ else if (IS_BROADWATER(dev))
+ dev_priv->display.init_clock_gating = broadwater_init_clock_gating;
+ } else if (IS_GEN3(dev)) {
dev_priv->display.update_wm = i9xx_update_wm;
dev_priv->display.get_fifo_size = i9xx_get_fifo_size;
+ dev_priv->display.init_clock_gating = gen3_init_clock_gating;
+ } else if (IS_I865G(dev)) {
+ dev_priv->display.update_wm = i830_update_wm;
+ dev_priv->display.init_clock_gating = i85x_init_clock_gating;
+ dev_priv->display.get_fifo_size = i830_get_fifo_size;
} else if (IS_I85X(dev)) {
dev_priv->display.update_wm = i9xx_update_wm;
dev_priv->display.get_fifo_size = i85x_get_fifo_size;
+ dev_priv->display.init_clock_gating = i85x_init_clock_gating;
} else {
dev_priv->display.update_wm = i830_update_wm;
+ dev_priv->display.init_clock_gating = i830_init_clock_gating;
if (IS_845G(dev))
dev_priv->display.get_fifo_size = i845_get_fifo_size;
else
}
dev->mode_config.fb_base = dev->agp->base;
- if (IS_MOBILE(dev) || !IS_GEN2(dev))
- dev_priv->num_pipe = 2;
- else
- dev_priv->num_pipe = 1;
DRM_DEBUG_KMS("%d display pipe%s available.\n",
dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : "");
intel_crtc_init(dev, i);
}
- intel_setup_outputs(dev);
-
- intel_enable_clock_gating(dev);
-
/* Just disable it once at startup */
i915_disable_vga(dev);
+ intel_setup_outputs(dev);
+
+ intel_init_clock_gating(dev);
if (IS_IRONLAKE_M(dev)) {
ironlake_enable_drps(dev);
if (IS_GEN6(dev))
gen6_enable_rps(dev_priv);
- if (IS_IRONLAKE_M(dev)) {
- dev_priv->renderctx = intel_alloc_context_page(dev);
- if (!dev_priv->renderctx)
- goto skip_rc6;
- dev_priv->pwrctx = intel_alloc_context_page(dev);
- if (!dev_priv->pwrctx) {
- i915_gem_object_unpin(dev_priv->renderctx);
- drm_gem_object_unreference(&dev_priv->renderctx->base);
- dev_priv->renderctx = NULL;
- goto skip_rc6;
- }
- ironlake_enable_rc6(dev);
- }
-
-skip_rc6:
INIT_WORK(&dev_priv->idle_work, intel_idle_update);
setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer,
(unsigned long)dev);
+}
+
+void intel_modeset_gem_init(struct drm_device *dev)
+{
+ if (IS_IRONLAKE_M(dev))
+ ironlake_enable_rc6(dev);
intel_setup_overlay(dev);
}