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| author | Chunming Zhou <David1.Zhou@amd.com> | 2016-08-15 11:46:21 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-22 13:47:20 -0400 |
| commit | 4c7e885506eaefc55c2b45293b52cae9ef797d67 (patch) | |
| tree | 66fcd8ab61dbe51377552b2fd3ff567c7ab34d48 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | 6557e3d29469157f18342cd47e05792271e64e7c (diff) | |
| download | lwn-4c7e885506eaefc55c2b45293b52cae9ef797d67.tar.gz lwn-4c7e885506eaefc55c2b45293b52cae9ef797d67.zip | |
drm/amdgpu: update pt shadow while updating pt V2
V2:
move shadow parameter to amdgpu_pte_update_params.
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: minutemaidpark@hotmail.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 1eae307cdfd4..d2824d97b7e5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -65,6 +65,8 @@ struct amdgpu_pte_update_params { void (*func)(struct amdgpu_pte_update_params *params, uint64_t pe, uint64_t addr, unsigned count, uint32_t incr, uint32_t flags); + /* indicate update pt or its shadow */ + bool shadow; }; /** @@ -761,7 +763,11 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, addr = start; pt_idx = addr >> amdgpu_vm_block_size; pt = vm->page_tables[pt_idx].entry.robj; - + if (params->shadow) { + if (!pt->shadow) + return; + pt = vm->page_tables[pt_idx].entry.robj->shadow; + } if ((addr & ~mask) == (end & ~mask)) nptes = end - addr; else @@ -780,6 +786,11 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, while (addr < end) { pt_idx = addr >> amdgpu_vm_block_size; pt = vm->page_tables[pt_idx].entry.robj; + if (params->shadow) { + if (!pt->shadow) + return; + pt = vm->page_tables[pt_idx].entry.robj->shadow; + } if ((addr & ~mask) == (end & ~mask)) nptes = end - addr; @@ -1004,6 +1015,9 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, if (r) goto error_free; + params.shadow = true; + amdgpu_vm_frag_ptes(¶ms, vm, start, last + 1, addr, flags); + params.shadow = false; amdgpu_vm_frag_ptes(¶ms, vm, start, last + 1, addr, flags); amdgpu_ring_pad_ib(ring, params.ib); |