summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
diff options
context:
space:
mode:
authorChristian König <christian.koenig@amd.com>2016-05-06 14:52:57 +0200
committerAlex Deucher <alexander.deucher@amd.com>2016-05-11 13:30:30 -0400
commit9f8fb5a2b339ba83493991ca8f1173a939a696d3 (patch)
tree7a2e13996140d08ee2df803442e43c7e0dcbc529 /drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
parent914f9e18c859d9413058c3632aba54d348a6527e (diff)
downloadlinux-9f8fb5a2b339ba83493991ca8f1173a939a696d3.tar.bz2
drm/amdgpu: move preamble IB handling into common code
This fixes the handling which was completely broken when you ad more than one preamble IB. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index f670519efbbc..d6f85923edcd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -125,6 +125,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
struct fence *hwf;
struct amdgpu_vm *vm = NULL;
unsigned i, patch_offset = ~0;
+ bool skip_preamble;
int r = 0;
@@ -172,9 +173,14 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
/* always set cond_exec_polling to CONTINUE */
*ring->cond_exe_cpu_addr = 1;
+ skip_preamble = ring->current_ctx == ctx;
old_ctx = ring->current_ctx;
for (i = 0; i < num_ibs; ++i) {
- ib = &ibs[i];
+
+ /* drop preamble IBs if we don't have a context switch */
+ if ((ib->flags & AMDGPU_IB_FLAG_PREAMBLE) && skip_preamble)
+ continue;
+
amdgpu_ring_emit_ib(ring, ib);
ring->current_ctx = ctx;
}