From: Philip Yang Philip.Yang@amd.com
stable inclusion from stable-v6.6.2 commit 03b98d789acba5840e4940b73ac7b137b78bc126 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8IW7G
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit bcfb9cee61207b80f37663ffa08c135657a27ad5 ]
On GFX v9.4.3 dGPU, applications have random timeout failure when XNACK on, dmesg log has "amdgpu: IH soft ring buffer overflow 0x900, 0x900", because dGPU mode has 272 cam entries. After increasing IH soft ring to 512 entries, no more IH soft ring overflow message and application passed.
Fixes: bf80d34b6c58 ("drm/amdgpu: Increase soft IH ring size") Signed-off-by: Philip Yang Philip.Yang@amd.com Reviewed-by: Christian König christian.koenig@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h index 6c6184f0dbc1..508f02eb0cf8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h @@ -28,7 +28,7 @@ #define AMDGPU_IH_MAX_NUM_IVS 32
#define IH_RING_SIZE (256 * 1024) -#define IH_SW_RING_SIZE (8 * 1024) /* enough for 256 CAM entries */ +#define IH_SW_RING_SIZE (16 * 1024) /* enough for 512 CAM entries */
struct amdgpu_device; struct amdgpu_iv_entry;