diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1437-drm-amdgpu-Remove-unnecessary-kmapping-of-HSA-GTT-BO.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1437-drm-amdgpu-Remove-unnecessary-kmapping-of-HSA-GTT-BO.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1437-drm-amdgpu-Remove-unnecessary-kmapping-of-HSA-GTT-BO.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1437-drm-amdgpu-Remove-unnecessary-kmapping-of-HSA-GTT-BO.patch new file mode 100644 index 00000000..0759e148 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1437-drm-amdgpu-Remove-unnecessary-kmapping-of-HSA-GTT-BO.patch @@ -0,0 +1,45 @@ +From f0be1c63c25b658f20a8b144e1c0bc5b14aeb30c Mon Sep 17 00:00:00 2001 +From: Felix Kuehling <Felix.Kuehling@amd.com> +Date: Tue, 24 May 2016 17:07:01 -0400 +Subject: [PATCH 1437/4131] drm/amdgpu: Remove unnecessary kmapping of HSA GTT + BOs + +Kmapping of all HSA GTT BOs is unnecessary and limits the maximum +size of GTT BOs that can be mapped to 4GB. + +Change-Id: I2ed8eb7a4e5e2c9403c8ca2ce0530f0179db2694 +Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 9 --------- + 1 file changed, 9 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +index 6cf2ec2..a094aa4 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +@@ -155,13 +155,6 @@ static int try_pin_bo(struct amdgpu_bo *bo, uint32_t domain) + ret = amdgpu_bo_pin(bo, domain, NULL); + if (ret != 0) + goto error; +- if (domain == AMDGPU_GEM_DOMAIN_GTT) { +- ret = amdgpu_bo_kmap(bo, NULL); +- if (ret != 0) { +- pr_err("amdgpu: failed kmap GTT BO\n"); +- goto error; +- } +- } + } else { + /* amdgpu_bo_pin doesn't support userptr. Therefore we + * can use the bo->pin_count for our version of +@@ -186,8 +179,6 @@ static int unpin_bo(struct amdgpu_bo *bo) + { + int ret = 0; + +- amdgpu_bo_kunmap(bo); +- + if (!amdgpu_ttm_tt_get_usermm(bo->tbo.ttm)) { + ret = amdgpu_bo_unpin(bo); + if (ret != 0) +-- +2.7.4 + |