diff options
| author | Xiangliang Yu <Xiangliang.Yu@amd.com> | 2017-02-28 17:06:36 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-29 23:55:04 -0400 |
| commit | c7a7266b7d143565364ac9b3b48b6fc58a3e2ea1 (patch) | |
| tree | f247d76da61c807b928fd1dd6791e69a2afee892 /drivers/gpu | |
| parent | drm/amdgpu/soc15: bypass PSP for VF (diff) | |
| download | linux-c7a7266b7d143565364ac9b3b48b6fc58a3e2ea1.tar.gz linux-c7a7266b7d143565364ac9b3b48b6fc58a3e2ea1.zip | |
drm/amdgpu/gmc9: no need use kiq in vega10 tlb flush
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.Yu@amd.com>
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 6 |
1 files 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 c069db71afae..232c20808b55 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -197,11 +197,11 @@ 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; @@ -212,7 +212,7 @@ 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; |