Re: [PATCH] drm/amdgpu: reject secure submission on rings which don't support it

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Am 14.03.22 um 03:46 schrieb Lang Yu:
Only ring GFX, SDMA and VCN_DEC support secure submission at the moment.

Signed-off-by: Lang Yu <Lang.Yu@xxxxxxx>

it would be nicer if we have that as flag in ring->funcs, but that way works for now as well.

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

Thanks,
Christian.

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c   | 4 ++--
  drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 8 ++++++++
  2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index bc1297dcdf97..840304691b92 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -166,8 +166,8 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
  	}
if ((ib->flags & AMDGPU_IB_FLAGS_SECURE) &&
-	    (ring->funcs->type == AMDGPU_RING_TYPE_COMPUTE)) {
-		dev_err(adev->dev, "secure submissions not supported on compute rings\n");
+	    !amdgpu_ring_secure_submission_supported(ring)) {
+		dev_err(adev->dev, "secure submissions not supported on ring <%s>\n", ring->name);
  		return -EINVAL;
  	}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index a8bed1b47899..3afe3d60e194 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -363,6 +363,14 @@ static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring,
  	ring->count_dw -= count_dw;
  }
+static inline
+bool amdgpu_ring_secure_submission_supported(struct amdgpu_ring *ring)
+{
+	return (ring->funcs->type == AMDGPU_RING_TYPE_GFX ||
+		ring->funcs->type == AMDGPU_RING_TYPE_SDMA ||
+		ring->funcs->type == AMDGPU_RING_TYPE_VCN_DEC);
+}
+
  int amdgpu_ring_test_helper(struct amdgpu_ring *ring);
void amdgpu_debugfs_ring_init(struct amdgpu_device *adev,




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