[PATCH] ppc64: add 970MP PVR
Olof Johansson [Wed, 13 Jul 2005 08:11:44 +0000 (01:11 -0700)]
Add PVR value and tests for 970MP.  Also switch to a simpler (but slightly
longer) check at init time for simplicity.

Signed-off-by: Olof Johansson <olof@austin.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/kernel/cpu_setup_power4.S
arch/ppc64/kernel/cputable.c

index 42fc08c..0482c06 100644 (file)
@@ -31,10 +31,13 @@ _GLOBAL(__970_cpu_preinit)
         */
        mfspr   r0,SPRN_PVR
        srwi    r0,r0,16
-       cmpwi   cr0,r0,0x39
-       cmpwi   cr1,r0,0x3c
-       cror    4*cr0+eq,4*cr0+eq,4*cr1+eq
+       cmpwi   r0,0x39
+       beq     1f
+       cmpwi   r0,0x3c
+       beq     1f
+       cmpwi   r0,0x44
        bnelr
+1:
 
        /* Make sure HID4:rm_ci is off before MMU is turned off, that large
         * pages are enabled with HID4:61 and clear HID5:DCBZ_size and
@@ -133,12 +136,14 @@ _GLOBAL(__save_cpu_setup)
        /* We only deal with 970 for now */
        mfspr   r0,SPRN_PVR
        srwi    r0,r0,16
-       cmpwi   cr0,r0,0x39
-       cmpwi   cr1,r0,0x3c
-       cror    4*cr0+eq,4*cr0+eq,4*cr1+eq
-       bne     1f
-
-       /* Save HID0,1,4 and 5 */
+       cmpwi   r0,0x39
+       beq     1f
+       cmpwi   r0,0x3c
+       beq     1f
+       cmpwi   r0,0x44
+       bne     2f
+
+1:     /* Save HID0,1,4 and 5 */
        mfspr   r3,SPRN_HID0
        std     r3,CS_HID0(r5)
        mfspr   r3,SPRN_HID1
@@ -148,7 +153,7 @@ _GLOBAL(__save_cpu_setup)
        mfspr   r3,SPRN_HID5
        std     r3,CS_HID5(r5)
        
-1:
+2:
        mtcr    r7
        blr
 
@@ -165,12 +170,14 @@ _GLOBAL(__restore_cpu_setup)
        /* We only deal with 970 for now */
        mfspr   r0,SPRN_PVR
        srwi    r0,r0,16
-       cmpwi   cr0,r0,0x39
-       cmpwi   cr1,r0,0x3c
-       cror    4*cr0+eq,4*cr0+eq,4*cr1+eq
-       bne     1f
+       cmpwi   r0,0x39
+       beq     1f
+       cmpwi   r0,0x3c
+       beq     1f
+       cmpwi   r0,0x44
+       bnelr
 
-       /* Before accessing memory, we make sure rm_ci is clear */
+1:     /* Before accessing memory, we make sure rm_ci is clear */
        li      r0,0
        mfspr   r3,SPRN_HID4
        rldimi  r3,r0,40,23     /* clear bit 23 (rm_ci) */
@@ -223,6 +230,5 @@ _GLOBAL(__restore_cpu_setup)
        mtspr   SPRN_HID5,r3
        sync
        isync
-1:
        blr
 
index 8d4c46f..77cec42 100644 (file)
@@ -183,6 +183,21 @@ struct cpu_spec    cpu_specs[] = {
                .cpu_setup              = __setup_cpu_ppc970,
                .firmware_features      = COMMON_PPC64_FW,
        },
+       {       /* PPC970MP */
+               .pvr_mask               = 0xffff0000,
+               .pvr_value              = 0x00440000,
+               .cpu_name               = "PPC970MP",
+               .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
+                       CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
+                       CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
+                       CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
+               .cpu_user_features      = COMMON_USER_PPC64 |
+                       PPC_FEATURE_HAS_ALTIVEC_COMP,
+               .icache_bsize           = 128,
+               .dcache_bsize           = 128,
+               .cpu_setup              = __setup_cpu_ppc970,
+               .firmware_features      = COMMON_PPC64_FW,
+       },
        {       /* Power5 */
                .pvr_mask               = 0xffff0000,
                .pvr_value              = 0x003a0000,