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| author | Christian König <christian.koenig@amd.com> | 2018-01-12 17:08:22 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:18:08 -0500 |
| commit | d9a701ccd6dafc30f48ad8c1b7d8ab4477547707 (patch) | |
| tree | a7250386b2bd134940f7bc5e83355c5a6d8d35b9 /drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | |
| parent | 4fef88bd002985908064ea6760623f09ac44355b (diff) | |
| download | op-kernel-dev-d9a701ccd6dafc30f48ad8c1b7d8ab4477547707.zip op-kernel-dev-d9a701ccd6dafc30f48ad8c1b7d8ab4477547707.tar.gz | |
drm/amdgpu: implement gmc_v7_0_emit_flush_gpu_tlb
Unify tlb flushing for gmc v7.
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_v7_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c index 0825002..cd2f834 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -435,6 +435,24 @@ static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid) WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); } +static uint64_t gmc_v7_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_v7_0_set_pte_pde - update the page tables using MMIO * @@ -1305,6 +1323,7 @@ static const struct amd_ip_funcs gmc_v7_0_ip_funcs = { static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = { .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb, + .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb, .set_pte_pde = gmc_v7_0_set_pte_pde, .set_prt = gmc_v7_0_set_prt, .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags, |
