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drm/radeon: add userptr flag to register MMU notifier v3

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Whenever userspace mapping related to our userptr change
we wait for it to become idle and unmap it from GTT.

v2: rebased, fix mutex unlock in error path
v3: improve commit message

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2014-08-07 09:36:03 +02:00 • committed by Alex Deucher
parent 2a84a4476d
commit 341cb9e426
8 changed files with 298 additions and 2 deletions
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1
include/uapi/drm/radeon_drm.h
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@ -818,6 +818,7 @@ struct drm_radeon_gem_create {
#define RADEON_GEM_USERPTR_READONLY (1 << 0)
#define RADEON_GEM_USERPTR_ANONONLY (1 << 1)
#define RADEON_GEM_USERPTR_VALIDATE (1 << 2)
#define RADEON_GEM_USERPTR_REGISTER (1 << 3)
struct drm_radeon_gem_userptr {
uint64_t addr;