From: Chunming Zhou Date: Mon, 15 Aug 2016 03:46:21 +0000 (+0800) Subject: drm/amdgpu: update pt shadow while updating pt V2 X-Git-Tag: v4.9-rc1~41^2~35^2~26 X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-linux.git;a=commitdiff_plain;h=4c7e885506eaefc55c2b45293b52cae9ef797d67 drm/amdgpu: update pt shadow while updating pt V2 V2: move shadow parameter to amdgpu_pte_update_params. Signed-off-by: Chunming Zhou Reviewed-by: Christian König Cc: minutemaidpark@hotmail.com Signed-off-by: Alex Deucher --- 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);