Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
[PATCH] Patch for nvidia divide by zero error for 7600 pci-express card
The following patch resolves the divide by zero error I encountered on my
system:
http://marc.10east.com/?l=linux-fbdev-devel&m=116058257024413&w=2
I accomplished this by merging what I thought was appropriate from:
http://webcvs.freedesktop.org/xorg/driver/xf86-video-nv/src/
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
authored by Wink Saville and committed by Linus Torvalds e40c6759 7947d2cc
+9
-3
drivers/video/nvidia/nv_hw.c
+9
-3
drivers/video/nvidia/nv_hw.c
···
145
146
if (par->Architecture >= NV_ARCH_40) {
147
pll = NV_RD32(par->PMC, 0x4020);
148
-
P = (pll >> 16) & 0x03;
149
pll = NV_RD32(par->PMC, 0x4024);
150
M = pll & 0xFF;
151
N = (pll >> 8) & 0xFF;
152
-
MB = (pll >> 16) & 0xFF;
153
-
NB = (pll >> 24) & 0xFF;
154
*MClk = ((N * NB * par->CrystalFreqKHz) / (M * MB)) >> P;
155
156
pll = NV_RD32(par->PMC, 0x4000);
···
145
146
if (par->Architecture >= NV_ARCH_40) {
147
pll = NV_RD32(par->PMC, 0x4020);
148
+
P = (pll >> 16) & 0x07;
149
pll = NV_RD32(par->PMC, 0x4024);
150
M = pll & 0xFF;
151
N = (pll >> 8) & 0xFF;
152
+
if (((par->Chipset & 0xfff0) == 0x0290) ||
153
+
((par->Chipset & 0xfff0) == 0x0390)) {
154
+
MB = 1;
155
+
NB = 1;
156
+
} else {
157
+
MB = (pll >> 16) & 0xFF;
158
+
NB = (pll >> 24) & 0xFF;
159
+
}
160
*MClk = ((N * NB * par->CrystalFreqKHz) / (M * MB)) >> P;
161
162
pll = NV_RD32(par->PMC, 0x4000);
+17
-1
drivers/video/nvidia/nv_setup.c
+17
-1
drivers/video/nvidia/nv_setup.c
···
359
case 0x0186:
360
case 0x0187:
361
case 0x018D:
362
case 0x0286:
363
case 0x028C:
364
case 0x0316:
···
383
case 0x034C:
384
case 0x0160:
385
case 0x0166:
386
case 0x00C8:
387
case 0x00CC:
388
case 0x0144:
···
644
par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
645
par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
646
647
-
printk("Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
648
}
649
650
if (monA)
651
info->monspecs = *monA;
652
653
kfree(edidA);
654
kfree(edidB);
···
359
case 0x0186:
360
case 0x0187:
361
case 0x018D:
362
+
case 0x0228:
363
case 0x0286:
364
case 0x028C:
365
case 0x0316:
···
382
case 0x034C:
383
case 0x0160:
384
case 0x0166:
385
+
case 0x0169:
386
+
case 0x016B:
387
+
case 0x016C:
388
+
case 0x016D:
389
case 0x00C8:
390
case 0x00CC:
391
case 0x0144:
···
639
par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
640
par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
641
642
+
printk("nvidiafb: Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
643
}
644
645
if (monA)
646
info->monspecs = *monA;
647
+
648
+
if (!par->FlatPanel || !par->twoHeads)
649
+
par->FPDither = 0;
650
+
651
+
par->LVDS = 0;
652
+
if (par->FlatPanel && par->twoHeads) {
653
+
NV_WR32(par->PRAMDAC0, 0x08B0, 0x00010004);
654
+
if (par->PRAMDAC0[0x08b4] & 1)
655
+
par->LVDS = 1;
656
+
printk("nvidiafb: Panel is %s\n", par->LVDS ? "LVDS" : "TMDS");
657
+
}
658
659
kfree(edidA);
660
kfree(edidB);
+1
drivers/video/nvidia/nv_type.h
+1
drivers/video/nvidia/nv_type.h
+12
-12
drivers/video/nvidia/nvidia.c
+12
-12
drivers/video/nvidia/nvidia.c
···
1160
case 0x0340: /* GeForceFX 5700 */
1161
arch = NV_ARCH_30;
1162
break;
1163
-
case 0x0040:
1164
-
case 0x00C0:
1165
-
case 0x0120:
1166
case 0x0130:
1167
-
case 0x0140:
1168
-
case 0x0160:
1169
-
case 0x01D0:
1170
-
case 0x0090:
1171
-
case 0x0210:
1172
-
case 0x0220:
1173
case 0x0230:
1174
-
case 0x0240:
1175
-
case 0x0290:
1176
-
case 0x0390:
1177
arch = NV_ARCH_40;
1178
break;
1179
case 0x0020: /* TNT, TNT2 */
···
1160
case 0x0340: /* GeForceFX 5700 */
1161
arch = NV_ARCH_30;
1162
break;
1163
+
case 0x0040: /* GeForce 6800 */
1164
+
case 0x00C0: /* GeForce 6800 */
1165
+
case 0x0120: /* GeForce 6800 */
1166
case 0x0130:
1167
+
case 0x0140: /* GeForce 6600 */
1168
+
case 0x0160: /* GeForce 6200 */
1169
+
case 0x01D0: /* GeForce 7200, 7300, 7400 */
1170
+
case 0x0090: /* GeForce 7800 */
1171
+
case 0x0210: /* GeForce 6800 */
1172
+
case 0x0220: /* GeForce 6200 */
1173
case 0x0230:
1174
+
case 0x0240: /* GeForce 6100 */
1175
+
case 0x0290: /* GeForce 7900 */
1176
+
case 0x0390: /* GeForce 7600 */
1177
arch = NV_ARCH_40;
1178
break;
1179
case 0x0020: /* TNT, TNT2 */