drm/amdgpu: fix preamble handling

[ Upstream commit d98ff24e8e9be3329eea7c84d5e244d0c1cd0ab3 ]

At this point the command submission can still be interrupted.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 5a196ec49be80c76f155ef18f80bbbaad14dfd4b..7200eea4f91886649c61a4a1c2fddb5f6bb03812 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -975,13 +975,9 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
                if (r)
                        return r;
 
-               if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE) {
-                       parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT;
-                       if (!parser->ctx->preamble_presented) {
-                               parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST;
-                               parser->ctx->preamble_presented = true;
-                       }
-               }
+               if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE)
+                       parser->job->preamble_status |=
+                               AMDGPU_PREAMBLE_IB_PRESENT;
 
                if (parser->job->ring && parser->job->ring != ring)
                        return -EINVAL;
@@ -1206,6 +1202,12 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 
        amdgpu_cs_post_dependencies(p);
 
+       if ((job->preamble_status & AMDGPU_PREAMBLE_IB_PRESENT) &&
+           !p->ctx->preamble_presented) {
+               job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST;
+               p->ctx->preamble_presented = true;
+       }
+
        cs->out.handle = seq;
        job->uf_sequence = seq;