diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_cs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 345a75a03c9..5c84fca00d3 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -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"); |