Am 08.08.2017 um 13:13 schrieb Liu, Monk:
+ /* Not to finish a ring which is not initialized */
Just write "don't finish the ring if not initialized"
With that comment addressed,
Reviewed-by: Monk Liu
Additional to that the commit message is to long. Please break it after
80 chars.
With that fixed the patch is Reviewed-by: Christian König
-Original Message-
From: Trigger Huang [mailto:trigger.hu...@amd.com]
Sent: Tuesday, August 8, 2017 6:56 PM
To: amd-gfx@lists.freedesktop.org
Cc: Liu, Monk ; Yu, Xiangliang ; Huang,
Trigger
Subject: [PATCH] drm/amdgpu: Not to finish an uninitialized ring
If a ring is not initialized, it also should not be finished.
For example, in Vega10's SR-IOV environment, UVD's decode ring is not
initialized, but will be finnished in amdgpu_uvd_sw_fini, because UVD driver
put all the uvd decode ring's finish operation into amdgpu_uvd_sw_fini
function, while not uvd_vXXX_0_sw_fini. This will lead to amdgpu module
unloading failure.
Signed-off-by: Trigger Huang
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 704475674..6c5646b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -261,6 +261,10 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring) {
ring->ready = false;
+ /* Not to finish a ring which is not initialized */
+ if (!(ring->adev) || !(ring->adev->rings[ring->idx]))
+ return;
+
amdgpu_wb_free(ring->adev, ring->rptr_offs);
amdgpu_wb_free(ring->adev, ring->wptr_offs);
--
2.7.4
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