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drm/r600: parse the set predication command. (v2) 

This is required for NV_conditional_render and EXT_transform_feedback.

v2: add evergreen support.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2011-02-28 16:11:48 +10:00
parent af50621a18
commit 2a19cac8f9
2 changed files with 63 additions and 0 deletions
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31
drivers/gpu/drm/radeon/evergreen_cs.c
View File

@ -942,6 +942,37 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p,
idx_value = radeon_get_ib_value(p, idx);
switch (pkt->opcode) {
case PACKET3_SET_PREDICATION:
{
int pred_op;
int tmp;
if (pkt->count != 1) {
DRM_ERROR("bad SET PREDICATION\n");
return -EINVAL;
}
tmp = radeon_get_ib_value(p, idx + 1);
pred_op = (tmp >> 16) & 0x7;
/* for the clear predicate operation */
if (pred_op == 0)
return 0;
if (pred_op > 2) {
DRM_ERROR("bad SET PREDICATION operation %d\n", pred_op);
return -EINVAL;
}
r = evergreen_cs_packet_next_reloc(p, &reloc);
if (r) {
DRM_ERROR("bad SET PREDICATION\n");
return -EINVAL;
}
ib[idx + 0] = idx_value + (u32)(reloc->lobj.gpu_offset & 0xffffffff);
ib[idx + 1] = tmp + (upper_32_bits(reloc->lobj.gpu_offset) & 0xff);
}
break;
case PACKET3_CONTEXT_CONTROL:
if (pkt->count != 1) {
DRM_ERROR("bad CONTEXT_CONTROL\n");

32
drivers/gpu/drm/radeon/r600_cs.c
View File

@ -1415,6 +1415,38 @@ static int r600_packet3_check(struct radeon_cs_parser *p,
idx_value = radeon_get_ib_value(p, idx);
switch (pkt->opcode) {
case PACKET3_SET_PREDICATION:
{
int pred_op;
int tmp;
if (pkt->count != 1) {
DRM_ERROR("bad SET PREDICATION\n");
return -EINVAL;
}
tmp = radeon_get_ib_value(p, idx + 1);
pred_op = (tmp >> 16) & 0x7;
/* for the clear predicate operation */
if (pred_op == 0)
return 0;
if (pred_op > 2) {
DRM_ERROR("bad SET PREDICATION operation %d\n", pred_op);
return -EINVAL;
}
r = r600_cs_packet_next_reloc(p, &reloc);
if (r) {
DRM_ERROR("bad SET PREDICATION\n");
return -EINVAL;
}
ib[idx + 0] = idx_value + (u32)(reloc->lobj.gpu_offset & 0xffffffff);
ib[idx + 1] = tmp + (upper_32_bits(reloc->lobj.gpu_offset) & 0xff);
}
break;
case PACKET3_START_3D_CMDBUF:
if (p->family >= CHIP_RV770 || pkt->count) {
DRM_ERROR("bad START_3D\n");