diff options
| author | Christian König <christian.koenig@amd.com> | 2018-01-12 16:58:18 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:18:08 -0500 |
| commit | 4fef88bd002985908064ea6760623f09ac44355b (patch) | |
| tree | 127bdc803df018237f1b4be0fe128e866e2a9238 /drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | |
| parent | 7ef11047c1aedeaf72c8ebe5242dbdcdfbb86fc3 (diff) | |
drm/amdgpu: implement gmc_v6_0_emit_flush_gpu_tlb
Unify tlb flushing for gmc v6.
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_v6_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c index daaad3f8fb17..b99c5cfc0564 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -362,6 +362,25 @@ static void gmc_v6_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid) WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); } +static uint64_t gmc_v6_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, + unsigned vmid, unsigned pasid, + uint64_t pd_addr) +{ + uint32_t reg; + + /* write new base address */ + 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; +} + static int gmc_v6_0_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr, uint32_t gpu_page_idx, uint64_t addr, uint64_t flags) @@ -1126,6 +1145,7 @@ static const struct amd_ip_funcs gmc_v6_0_ip_funcs = { static const struct amdgpu_gmc_funcs gmc_v6_0_gmc_funcs = { .flush_gpu_tlb = gmc_v6_0_flush_gpu_tlb, + .emit_flush_gpu_tlb = gmc_v6_0_emit_flush_gpu_tlb, .set_pte_pde = gmc_v6_0_set_pte_pde, .set_prt = gmc_v6_0_set_prt, .get_vm_pde = gmc_v6_0_get_vm_pde, |