@@ -128,8 +128,6 @@ static int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, union drm_amdgpu_cs
goto free_chunk;
}
- mutex_lock(&p->ctx->lock);
-
/* skip guilty context job */
if (atomic_read(&p->ctx->guilty) == 1) {
ret = -ECANCELED;
@@ -708,7 +706,6 @@ static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error,
dma_fence_put(parser->fence);
if (parser->ctx) {
- mutex_unlock(&parser->ctx->lock);
amdgpu_ctx_put(parser->ctx);
}
if (parser->bo_list)
@@ -1161,9 +1158,6 @@ static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
{
int i, r;
- /* TODO: Investigate why we still need the context lock */
- mutex_unlock(&p->ctx->lock);
-
for (i = 0; i < p->nchunks; ++i) {
struct amdgpu_cs_chunk *chunk;
@@ -1174,34 +1168,32 @@ static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
case AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES:
r = amdgpu_cs_process_fence_dep(p, chunk);
if (r)
- goto out;
+ return r;
break;
case AMDGPU_CHUNK_ID_SYNCOBJ_IN:
r = amdgpu_cs_process_syncobj_in_dep(p, chunk);
if (r)
- goto out;
+ return r;
break;
case AMDGPU_CHUNK_ID_SYNCOBJ_OUT:
r = amdgpu_cs_process_syncobj_out_dep(p, chunk);
if (r)
- goto out;
+ return r;
break;
case AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_WAIT:
r = amdgpu_cs_process_syncobj_timeline_in_dep(p, chunk);
if (r)
- goto out;
+ return r;
break;
case AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_SIGNAL:
r = amdgpu_cs_process_syncobj_timeline_out_dep(p, chunk);
if (r)
- goto out;
+ return r;
break;
}
}
-out:
- mutex_lock(&p->ctx->lock);
- return r;
+ return 0;
}
static void amdgpu_cs_post_dependencies(struct amdgpu_cs_parser *p)
@@ -1363,7 +1355,6 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
goto out;
r = amdgpu_cs_submit(&parser, cs);
-
out:
amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
@@ -315,7 +315,6 @@ static int amdgpu_ctx_init(struct amdgpu_ctx_mgr *mgr, int32_t priority,
kref_init(&ctx->refcount);
ctx->mgr = mgr;
spin_lock_init(&ctx->ring_lock);
- mutex_init(&ctx->lock);
ctx->reset_counter = atomic_read(&mgr->adev->gpu_reset_counter);
ctx->reset_counter_query = ctx->reset_counter;
@@ -407,7 +406,6 @@ static void amdgpu_ctx_fini(struct kref *ref)
drm_dev_exit(idx);
}
- mutex_destroy(&ctx->lock);
kfree(ctx);
}
@@ -53,7 +53,6 @@ struct amdgpu_ctx {
bool preamble_presented;
int32_t init_priority;
int32_t override_priority;
- struct mutex lock;
atomic_t guilty;
unsigned long ras_counter_ce;
unsigned long ras_counter_ue;
This reverts commit 94f4c4965e5513ba624488f4b601d6b385635aec. We found that the bo_list is missing a protection for its list entries. Since that is fixed now this workaround can be removed again. Signed-off-by: Christian König <christian.koenig@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 21 ++++++--------------- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 2 -- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h | 1 - 3 files changed, 6 insertions(+), 18 deletions(-)