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| author | Leslie Shi <Yuliang.Shi@amd.com> | 2022-01-05 10:57:20 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-01-11 15:44:26 -0500 |
| commit | 62d5f9f7110ad374db67ab4820f4ff2d916c3cdb (patch) | |
| tree | abf5a5281628893894dd0a8bf4ecc6790fe43ffc /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 6638391b9f78abaa41f05fe4e0d2ee6f6390c398 (diff) | |
| download | linux-62d5f9f7110ad374db67ab4820f4ff2d916c3cdb.tar.gz linux-62d5f9f7110ad374db67ab4820f4ff2d916c3cdb.tar.bz2 linux-62d5f9f7110ad374db67ab4820f4ff2d916c3cdb.zip | |
drm/amdgpu: Unmap MMIO mappings when device is not unplugged
Patch: 3efb17ae7e92 ("drm/amdgpu: Call amdgpu_device_unmap_mmio() if device
is unplugged to prevent crash in GPU initialization failure") makes call to
amdgpu_device_unmap_mmio() conditioned on device unplugged. This patch unmaps
MMIO mappings even when device is not unplugged.
v2: Add condition of drm_dev_enter() to deleted unmaps in patch
"drm/amdgpu: Unmap all MMIO mappings"
Signed-off-by: Leslie Shi <Yuliang.Shi@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index fb0d8bffdce2..5c3f24069f2a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -43,6 +43,7 @@ #include <linux/sizes.h> #include <linux/module.h> +#include <drm/drm_drv.h> #include <drm/ttm/ttm_bo_api.h> #include <drm/ttm/ttm_bo_driver.h> #include <drm/ttm/ttm_placement.h> @@ -1804,6 +1805,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) */ void amdgpu_ttm_fini(struct amdgpu_device *adev) { + int idx; if (!adev->mman.initialized) return; @@ -1818,6 +1820,15 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev) NULL, NULL); amdgpu_ttm_fw_reserve_vram_fini(adev); + if (drm_dev_enter(adev_to_drm(adev), &idx)) { + + if (adev->mman.aper_base_kaddr) + iounmap(adev->mman.aper_base_kaddr); + adev->mman.aper_base_kaddr = NULL; + + drm_dev_exit(idx); + } + amdgpu_vram_mgr_fini(adev); amdgpu_gtt_mgr_fini(adev); amdgpu_preempt_mgr_fini(adev); |