From: Xiangliang Yu <xiangliang...@amd.com>
two reasons:
1. there is a spinlock around;
2. vm register is pf/vf copy, vf can access via mmio safely.
Signed-off-by: Xiangliang Yu <xiangliang...@amd.com>
Signed-off-by: Monk Liu <monk....@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 5cf0fc3..51a1919 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -198,11 +198,11 @@ static void gmc_v9_0_gart_flush_gpu_tlb(struct
amdgpu_device *adev,
struct amdgpu_vmhub *hub = &adev->vmhub[i];
u32 tmp = hub->get_invalidate_req(vmid);
- WREG32(hub->vm_inv_eng0_req + eng, tmp);
+ WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp);
/* Busy wait for ACK.*/
for (j = 0; j < 100; j++) {
- tmp = RREG32(hub->vm_inv_eng0_ack + eng);
+ tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
tmp &= 1 << vmid;
if (tmp)
break;
@@ -213,7 +213,7 @@ static void gmc_v9_0_gart_flush_gpu_tlb(struct
amdgpu_device *adev,
/* Wait for ACK with a delay.*/
for (j = 0; j < adev->usec_timeout; j++) {
- tmp = RREG32(hub->vm_inv_eng0_ack + eng);
+ tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
tmp &= 1 << vmid;
if (tmp)
break;
--
2.5.5
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