651b93c8ab5dc5d8223a0185aebb531f919d7b2c
[linux-2.6.git] / drivers / gpu / drm / mga / mga_warp.c
1 /* mga_warp.c -- Matrox G200/G400 WARP engine management -*- linux-c -*-
2  * Created: Thu Jan 11 21:29:32 2001 by gareth@valinux.com
3  *
4  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
5  * All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the next
15  * paragraph) shall be included in all copies or substantial portions of the
16  * Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24  * OTHER DEALINGS IN THE SOFTWARE.
25  *
26  * Authors:
27  *    Gareth Hughes <gareth@valinux.com>
28  */
29
30 #include "drmP.h"
31 #include "drm.h"
32 #include "mga_drm.h"
33 #include "mga_drv.h"
34 #include "mga_ucode.h"
35
36 #define MGA_WARP_CODE_ALIGN             256     /* in bytes */
37
38 #define WARP_UCODE_SIZE( which )                                        \
39         ((sizeof(which) / MGA_WARP_CODE_ALIGN + 1) * MGA_WARP_CODE_ALIGN)
40
41 #define WARP_UCODE_INSTALL( which, where )                              \
42 do {                                                                    \
43         DRM_DEBUG( " pcbase = 0x%08lx  vcbase = %p\n", pcbase, vcbase );\
44         dev_priv->warp_pipe_phys[where] = pcbase;                       \
45         memcpy( vcbase, which, sizeof(which) );                         \
46         pcbase += WARP_UCODE_SIZE( which );                             \
47         vcbase += WARP_UCODE_SIZE( which );                             \
48 } while (0)
49
50 static const unsigned int mga_warp_g400_microcode_size =
51     (WARP_UCODE_SIZE(warp_g400_tgz) +
52      WARP_UCODE_SIZE(warp_g400_tgza) +
53      WARP_UCODE_SIZE(warp_g400_tgzaf) +
54      WARP_UCODE_SIZE(warp_g400_tgzf) +
55      WARP_UCODE_SIZE(warp_g400_tgzs) +
56      WARP_UCODE_SIZE(warp_g400_tgzsa) +
57      WARP_UCODE_SIZE(warp_g400_tgzsaf) +
58      WARP_UCODE_SIZE(warp_g400_tgzsf) +
59      WARP_UCODE_SIZE(warp_g400_t2gz) +
60      WARP_UCODE_SIZE(warp_g400_t2gza) +
61      WARP_UCODE_SIZE(warp_g400_t2gzaf) +
62      WARP_UCODE_SIZE(warp_g400_t2gzf) +
63      WARP_UCODE_SIZE(warp_g400_t2gzs) +
64      WARP_UCODE_SIZE(warp_g400_t2gzsa) +
65      WARP_UCODE_SIZE(warp_g400_t2gzsaf) + WARP_UCODE_SIZE(warp_g400_t2gzsf));
66
67 static const unsigned int mga_warp_g200_microcode_size =
68     (WARP_UCODE_SIZE(warp_g200_tgz) +
69      WARP_UCODE_SIZE(warp_g200_tgza) +
70      WARP_UCODE_SIZE(warp_g200_tgzaf) +
71      WARP_UCODE_SIZE(warp_g200_tgzf) +
72      WARP_UCODE_SIZE(warp_g200_tgzs) +
73      WARP_UCODE_SIZE(warp_g200_tgzsa) +
74      WARP_UCODE_SIZE(warp_g200_tgzsaf) + WARP_UCODE_SIZE(warp_g200_tgzsf));
75
76 unsigned int mga_warp_microcode_size(const drm_mga_private_t * dev_priv)
77 {
78         switch (dev_priv->chipset) {
79         case MGA_CARD_TYPE_G400:
80         case MGA_CARD_TYPE_G550:
81                 return PAGE_ALIGN(mga_warp_g400_microcode_size);
82         case MGA_CARD_TYPE_G200:
83                 return PAGE_ALIGN(mga_warp_g200_microcode_size);
84         default:
85                 return 0;
86         }
87 }
88
89 static int mga_warp_install_g400_microcode(drm_mga_private_t * dev_priv)
90 {
91         unsigned char *vcbase = dev_priv->warp->handle;
92         unsigned long pcbase = dev_priv->warp->offset;
93
94         memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys));
95
96         WARP_UCODE_INSTALL(warp_g400_tgz, MGA_WARP_TGZ);
97         WARP_UCODE_INSTALL(warp_g400_tgzf, MGA_WARP_TGZF);
98         WARP_UCODE_INSTALL(warp_g400_tgza, MGA_WARP_TGZA);
99         WARP_UCODE_INSTALL(warp_g400_tgzaf, MGA_WARP_TGZAF);
100         WARP_UCODE_INSTALL(warp_g400_tgzs, MGA_WARP_TGZS);
101         WARP_UCODE_INSTALL(warp_g400_tgzsf, MGA_WARP_TGZSF);
102         WARP_UCODE_INSTALL(warp_g400_tgzsa, MGA_WARP_TGZSA);
103         WARP_UCODE_INSTALL(warp_g400_tgzsaf, MGA_WARP_TGZSAF);
104
105         WARP_UCODE_INSTALL(warp_g400_t2gz, MGA_WARP_T2GZ);
106         WARP_UCODE_INSTALL(warp_g400_t2gzf, MGA_WARP_T2GZF);
107         WARP_UCODE_INSTALL(warp_g400_t2gza, MGA_WARP_T2GZA);
108         WARP_UCODE_INSTALL(warp_g400_t2gzaf, MGA_WARP_T2GZAF);
109         WARP_UCODE_INSTALL(warp_g400_t2gzs, MGA_WARP_T2GZS);
110         WARP_UCODE_INSTALL(warp_g400_t2gzsf, MGA_WARP_T2GZSF);
111         WARP_UCODE_INSTALL(warp_g400_t2gzsa, MGA_WARP_T2GZSA);
112         WARP_UCODE_INSTALL(warp_g400_t2gzsaf, MGA_WARP_T2GZSAF);
113
114         return 0;
115 }
116
117 static int mga_warp_install_g200_microcode(drm_mga_private_t * dev_priv)
118 {
119         unsigned char *vcbase = dev_priv->warp->handle;
120         unsigned long pcbase = dev_priv->warp->offset;
121
122         memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys));
123
124         WARP_UCODE_INSTALL(warp_g200_tgz, MGA_WARP_TGZ);
125         WARP_UCODE_INSTALL(warp_g200_tgzf, MGA_WARP_TGZF);
126         WARP_UCODE_INSTALL(warp_g200_tgza, MGA_WARP_TGZA);
127         WARP_UCODE_INSTALL(warp_g200_tgzaf, MGA_WARP_TGZAF);
128         WARP_UCODE_INSTALL(warp_g200_tgzs, MGA_WARP_TGZS);
129         WARP_UCODE_INSTALL(warp_g200_tgzsf, MGA_WARP_TGZSF);
130         WARP_UCODE_INSTALL(warp_g200_tgzsa, MGA_WARP_TGZSA);
131         WARP_UCODE_INSTALL(warp_g200_tgzsaf, MGA_WARP_TGZSAF);
132
133         return 0;
134 }
135
136 int mga_warp_install_microcode(drm_mga_private_t * dev_priv)
137 {
138         const unsigned int size = mga_warp_microcode_size(dev_priv);
139
140         DRM_DEBUG("MGA ucode size = %d bytes\n", size);
141         if (size > dev_priv->warp->size) {
142                 DRM_ERROR("microcode too large! (%u > %lu)\n",
143                           size, dev_priv->warp->size);
144                 return -ENOMEM;
145         }
146
147         switch (dev_priv->chipset) {
148         case MGA_CARD_TYPE_G400:
149         case MGA_CARD_TYPE_G550:
150                 return mga_warp_install_g400_microcode(dev_priv);
151         case MGA_CARD_TYPE_G200:
152                 return mga_warp_install_g200_microcode(dev_priv);
153         default:
154                 return -EINVAL;
155         }
156 }
157
158 #define WMISC_EXPECTED          (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE)
159
160 int mga_warp_init(drm_mga_private_t * dev_priv)
161 {
162         u32 wmisc;
163
164         /* FIXME: Get rid of these damned magic numbers...
165          */
166         switch (dev_priv->chipset) {
167         case MGA_CARD_TYPE_G400:
168         case MGA_CARD_TYPE_G550:
169                 MGA_WRITE(MGA_WIADDR2, MGA_WMODE_SUSPEND);
170                 MGA_WRITE(MGA_WGETMSB, 0x00000E00);
171                 MGA_WRITE(MGA_WVRTXSZ, 0x00001807);
172                 MGA_WRITE(MGA_WACCEPTSEQ, 0x18000000);
173                 break;
174         case MGA_CARD_TYPE_G200:
175                 MGA_WRITE(MGA_WIADDR, MGA_WMODE_SUSPEND);
176                 MGA_WRITE(MGA_WGETMSB, 0x1606);
177                 MGA_WRITE(MGA_WVRTXSZ, 7);
178                 break;
179         default:
180                 return -EINVAL;
181         }
182
183         MGA_WRITE(MGA_WMISC, (MGA_WUCODECACHE_ENABLE |
184                               MGA_WMASTER_ENABLE | MGA_WCACHEFLUSH_ENABLE));
185         wmisc = MGA_READ(MGA_WMISC);
186         if (wmisc != WMISC_EXPECTED) {
187                 DRM_ERROR("WARP engine config failed! 0x%x != 0x%x\n",
188                           wmisc, WMISC_EXPECTED);
189                 return -EINVAL;
190         }
191
192         return 0;
193 }