diff options
| author | shaoyunl <shaoyun.liu@amd.com> | 2020-04-09 15:53:17 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-01 01:59:13 -0400 |
| commit | 8db1015b99b29f4a77639a217cedba669eccd53b (patch) | |
| tree | c06429588f96bed343e49edb846ff2154dd40451 /drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | |
| parent | 80c36f8646ebf0018e3e8bb5de35f7e7be664f54 (diff) | |
drm/amdgpu/sriov : Use kiq to do tlb invalidation for gfx10 on sriov
On SRIOV run time, driver shouldn't directly access invalidation registers through MMIO.
Use kiq to submit wait_reg_mem package for the invalidation
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c index ce2f72430403..061900e8afd3 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c @@ -350,6 +350,24 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid, /* flush hdp cache */ adev->nbio.funcs->hdp_flush(adev, NULL); + /* For SRIOV run time, driver shouldn't access the register through MMIO + * Directly use kiq to do the vm invalidation instead + */ + if (adev->gfx.kiq.ring.sched.ready && + (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) && + !adev->in_gpu_reset) { + + struct amdgpu_vmhub *hub = &adev->vmhub[vmhub]; + const unsigned eng = 17; + u32 inv_req = gmc_v10_0_get_invalidate_req(vmid, flush_type); + u32 req = hub->vm_inv_eng0_req + eng; + u32 ack = hub->vm_inv_eng0_ack + eng; + + amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req, + 1 << vmid); + return; + } + mutex_lock(&adev->mman.gtt_window_lock); if (vmhub == AMDGPU_MMHUB_0) { |