From: Dave Airlie <airlied@redhat.com>
Date: Thu, 9 Mar 2017 03:45:52 +0000
Subject: amdgpu/cs: split out fence dependency checking (v2)
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Git-commit: 6f0308ebc196f18607f45cc753521eb8448dfdfd
Patch-mainline: v4.13-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
This just splits out the fence depenency checking into it's
own function to make it easier to add semaphore dependencies.
v2: rebase onto other changes.
v1-Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 95 ++++++++++++++++++---------------
1 file changed, 52 insertions(+), 43 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -923,59 +923,68 @@ static int amdgpu_cs_ib_fill(struct amdg
return 0;
}
+static int amdgpu_cs_process_fence_dep(struct amdgpu_cs_parser *p,
+ struct amdgpu_cs_chunk *chunk)
+{
+ struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
+ unsigned num_deps;
+ int i, r;
+ struct drm_amdgpu_cs_chunk_dep *deps;
+
+ deps = (struct drm_amdgpu_cs_chunk_dep *)chunk->kdata;
+ num_deps = chunk->length_dw * 4 /
+ sizeof(struct drm_amdgpu_cs_chunk_dep);
+
+ for (i = 0; i < num_deps; ++i) {
+ struct amdgpu_ring *ring;
+ struct amdgpu_ctx *ctx;
+ struct dma_fence *fence;
+
+ ctx = amdgpu_ctx_get(fpriv, deps[i].ctx_id);
+ if (ctx == NULL)
+ return -EINVAL;
+
+ r = amdgpu_queue_mgr_map(p->adev, &ctx->queue_mgr,
+ deps[i].ip_type,
+ deps[i].ip_instance,
+ deps[i].ring, &ring);
+ if (r) {
+ amdgpu_ctx_put(ctx);
+ return r;
+ }
+
+ fence = amdgpu_ctx_get_fence(ctx, ring,
+ deps[i].handle);
+ if (IS_ERR(fence)) {
+ r = PTR_ERR(fence);
+ amdgpu_ctx_put(ctx);
+ return r;
+ } else if (fence) {
+ r = amdgpu_sync_fence(p->adev, &p->job->sync,
+ fence);
+ dma_fence_put(fence);
+ amdgpu_ctx_put(ctx);
+ if (r)
+ return r;
+ }
+ }
+ return 0;
+}
+
static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
struct amdgpu_cs_parser *p)
{
- struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
- int i, j, r;
+ int i, r;
for (i = 0; i < p->nchunks; ++i) {
- struct drm_amdgpu_cs_chunk_dep *deps;
struct amdgpu_cs_chunk *chunk;
- unsigned num_deps;
chunk = &p->chunks[i];
- if (chunk->chunk_id != AMDGPU_CHUNK_ID_DEPENDENCIES)
- continue;
-
- deps = (struct drm_amdgpu_cs_chunk_dep *)chunk->kdata;
- num_deps = chunk->length_dw * 4 /
- sizeof(struct drm_amdgpu_cs_chunk_dep);
-
- for (j = 0; j < num_deps; ++j) {
- struct amdgpu_ring *ring;
- struct amdgpu_ctx *ctx;
- struct dma_fence *fence;
-
- ctx = amdgpu_ctx_get(fpriv, deps[j].ctx_id);
- if (ctx == NULL)
- return -EINVAL;
-
- r = amdgpu_queue_mgr_map(adev, &ctx->queue_mgr,
- deps[j].ip_type,
- deps[j].ip_instance,
- deps[j].ring, &ring);
- if (r) {
- amdgpu_ctx_put(ctx);
+ if (chunk->chunk_id == AMDGPU_CHUNK_ID_DEPENDENCIES) {
+ r = amdgpu_cs_process_fence_dep(p, chunk);
+ if (r)
return r;
- }
-
- fence = amdgpu_ctx_get_fence(ctx, ring,
- deps[j].handle);
- if (IS_ERR(fence)) {
- r = PTR_ERR(fence);
- amdgpu_ctx_put(ctx);
- return r;
-
- } else if (fence) {
- r = amdgpu_sync_fence(adev, &p->job->sync,
- fence);
- dma_fence_put(fence);
- amdgpu_ctx_put(ctx);
- if (r)
- return r;
- }
}
}