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path: root/drivers/gpu/drm/radeon/r300.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/r300.c')
-rw-r--r--drivers/gpu/drm/radeon/r300.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 36b4f7b..23fee54 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -745,6 +745,11 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
break;
case 0x4E00:
/* RB3D_CCTL */
+ if ((idx_value & (1 << 10)) && /* CMASK_ENABLE */
+ p->rdev->cmask_filp != p->filp) {
+ DRM_ERROR("Invalid RB3D_CCTL: Cannot enable CMASK.\n");
+ return -EINVAL;
+ }
track->num_cb = ((idx_value >> 5) & 0x3) + 1;
break;
case 0x4E38:
@@ -1206,6 +1211,10 @@ static int r300_packet3_check(struct radeon_cs_parser *p,
if (p->rdev->hyperz_filp != p->filp)
return -EINVAL;
break;
+ case PACKET3_3D_CLEAR_CMASK:
+ if (p->rdev->cmask_filp != p->filp)
+ return -EINVAL;
+ break;
case PACKET3_NOP:
break;
default: