diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0913-drm-amdgpu-Account-for-shadow-PTs-in-mapping-update-.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0913-drm-amdgpu-Account-for-shadow-PTs-in-mapping-update-.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0913-drm-amdgpu-Account-for-shadow-PTs-in-mapping-update-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0913-drm-amdgpu-Account-for-shadow-PTs-in-mapping-update-.patch new file mode 100644 index 00000000..90ae2f43 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0913-drm-amdgpu-Account-for-shadow-PTs-in-mapping-update-.patch @@ -0,0 +1,41 @@ +From 5f7db09fea3a1ec2af9c15e7cb4b4d6a683a08ea Mon Sep 17 00:00:00 2001 +From: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> +Date: Thu, 7 Sep 2017 13:23:21 +0200 +Subject: [PATCH 0913/4131] drm/amdgpu: Account for shadow PTs in mapping + update IB size. +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When amdgpu_vm_frag_ptes calls amdgpu_vm_update_ptes and the pt +has a shadow PT we mirror all the write to the shadow PT too, which +results in twice the commands. + +Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> +Reviewed-by: Christian König <christian.koenig@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +index 0c1cbb9..efa8136 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +@@ -1536,10 +1536,12 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, + nptes = last - start + 1; + + /* +- * reserve space for one command every (1 << BLOCK_SIZE) ++ * reserve space for two commands every (1 << BLOCK_SIZE) + * entries or 2k dwords (whatever is smaller) ++ * ++ * The second command is for the shadow pagetables. + */ +- ncmds = (nptes >> min(adev->vm_manager.block_size, 11u)) + 1; ++ ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1) * 2; + + /* padding, etc. */ + ndw = 64; +-- +2.7.4 + |