diff options
| author | Christian König <christian.koenig@amd.com> | 2016-02-08 13:08:35 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-02-10 22:17:16 +0300 |
| commit | cc325d1913475655b81c0417ba04c84f168ac78c (patch) | |
| tree | 6dcc586983e753988a4b2713678f78bbb49ded6e /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 04db4caf5c836c211977a54c9218f2cdee14897f (diff) | |
| download | linux-cc325d1913475655b81c0417ba04c84f168ac78c.tar.xz | |
drm/amdgpu: check userptrs mm earlier
Instead of when we try to bind it check the usermm when
we try to use it in the IOCTLs.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-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 | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 100bfd4a0707..cdb393db11a5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -499,9 +499,6 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_tt *ttm) enum dma_data_direction direction = write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE; - if (current->mm != gtt->usermm) - return -EPERM; - if (gtt->userflags & AMDGPU_GEM_USERPTR_ANONONLY) { /* check that we only pin down anonymous memory to prevent problems with writeback */ @@ -773,14 +770,14 @@ int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr, return 0; } -bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm) +struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm) { struct amdgpu_ttm_tt *gtt = (void *)ttm; if (gtt == NULL) - return false; + return NULL; - return !!gtt->userptr; + return gtt->usermm; } bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start, |