[PATCH] drm/amdgpu: allow write access to mapped userptrs
Christian König
deathsimple at vodafone.de
Fri Mar 11 14:29:27 UTC 2016
From: Christian König <christian.koenig at amd.com>
With the updated MMU notifier we should also be able to
handle the writeback case correctly.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 7f6b4d9..5d280f6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -258,12 +258,10 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
AMDGPU_GEM_USERPTR_REGISTER))
return -EINVAL;
- if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) && (
- !(args->flags & AMDGPU_GEM_USERPTR_ANONONLY) ||
- !(args->flags & AMDGPU_GEM_USERPTR_REGISTER))) {
+ if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) &&
+ !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) {
- /* if we want to write to it we must require anonymous
- memory and install a MMU notifier */
+ /* if we want to write to it we must install a MMU notifier */
return -EACCES;
}
--
2.5.0
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