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amdgpu/cs: split out fence dependency checking (v2)

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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>
This commit is contained in:
Dave Airlie 2017-03-09 03:45:52 +00:00 committed by Alex Deucher
parent 64dab074fe
commit 6f0308ebc1
1 changed files with 52 additions and 43 deletions
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95
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@ -923,59 +923,68 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
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;
}
}
}