gart tlb may be staled when switch to a new gpu index. this cause gpu
fetchs wrong data from gtt memory. Flush gart tlb at the end of gmc
resume to fix it.
Signed-off-by: Samuel Zhang <guoqing.zh...@amd.com>
Change-Id: If2a3780319f5ecf3dcb0f1c07f85151ed65f522d
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 73ac05b9a1bf..0e7957b4389a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -2543,7 +2543,7 @@ static int gmc_v9_0_resume(struct amdgpu_ip_block
*ip_block)
return r;
amdgpu_vmid_reset_all(ip_block->adev);
-
+ amdgpu_gart_invalidate_tlb(adev);
return 0;
}
--
2.43.5
