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authorIngo Molnar <mingo@kernel.org>2017-09-04 11:01:18 +0200
committerIngo Molnar <mingo@kernel.org>2017-09-04 11:01:18 +0200
commitedc2988c548db05e33b921fed15821010bc74895 (patch)
treeb35860428acea35e5866d4cf007519ed943a85de /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
parentd82fed75294229abc9d757f08a4817febae6c4f4 (diff)
parent81a84ad3cb5711cec79f4dd53a4ce026b092c432 (diff)
Merge branch 'linus' into locking/core, to fix up conflicts
Conflicts: mm/page_alloc.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index 73f83a10ae14..8d689ab7e429 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -26,6 +26,7 @@
#define AMDGPU_AMDKFD_H_INCLUDED
#include <linux/types.h>
+#include <linux/mmu_context.h>
#include <kgd_kfd_interface.h>
struct amdgpu_device;
@@ -39,8 +40,6 @@ struct kgd_mem {
int amdgpu_amdkfd_init(void);
void amdgpu_amdkfd_fini(void);
-bool amdgpu_amdkfd_load_interface(struct amdgpu_device *adev);
-
void amdgpu_amdkfd_suspend(struct amdgpu_device *adev);
int amdgpu_amdkfd_resume(struct amdgpu_device *adev);
void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
@@ -62,4 +61,19 @@ uint64_t get_gpu_clock_counter(struct kgd_dev *kgd);
uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd);
+#define read_user_wptr(mmptr, wptr, dst) \
+ ({ \
+ bool valid = false; \
+ if ((mmptr) && (wptr)) { \
+ if ((mmptr) == current->mm) { \
+ valid = !get_user((dst), (wptr)); \
+ } else if (current->mm == NULL) { \
+ use_mm(mmptr); \
+ valid = !get_user((dst), (wptr)); \
+ unuse_mm(mmptr); \
+ } \
+ } \
+ valid; \
+ })
+
#endif /* AMDGPU_AMDKFD_H_INCLUDED */