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| author | Christian König <christian.koenig@amd.com> | 2018-01-12 21:14:42 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 22:18:09 +0300 |
| commit | 5518625d6a50c1724b2b2a796fc2fb1a8f1a9c21 (patch) | |
| tree | 13ce65f4878081221fbaa1bf1a5fff58cba7bb4b /drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | |
| parent | d9a701ccd6dafc30f48ad8c1b7d8ab4477547707 (diff) | |
| download | linux-5518625d6a50c1724b2b2a796fc2fb1a8f1a9c21.tar.xz | |
drm/amdgpu: implement gmc_v8_0_emit_flush_gpu_tlb
Unify tlb flushing for gmc v8.
v2: handle UVD v6 as well
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index ac73b2c60fc3..267ff3d4872a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -611,6 +611,24 @@ static void gmc_v8_0_flush_gpu_tlb(struct amdgpu_device *adev, WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); } +static uint64_t gmc_v8_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, + unsigned vmid, unsigned pasid, + uint64_t pd_addr) +{ + uint32_t reg; + + if (vmid < 8) + reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid; + else + reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8; + amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12); + + /* bits 0-15 are the VM contexts0-15 */ + amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid); + + return pd_addr; +} + /** * gmc_v8_0_set_pte_pde - update the page tables using MMIO * @@ -1640,6 +1658,7 @@ static const struct amd_ip_funcs gmc_v8_0_ip_funcs = { static const struct amdgpu_gmc_funcs gmc_v8_0_gmc_funcs = { .flush_gpu_tlb = gmc_v8_0_flush_gpu_tlb, + .emit_flush_gpu_tlb = gmc_v8_0_emit_flush_gpu_tlb, .set_pte_pde = gmc_v8_0_set_pte_pde, .set_prt = gmc_v8_0_set_prt, .get_vm_pte_flags = gmc_v8_0_get_vm_pte_flags, |