diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-10-03 11:09:16 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-10-03 11:09:16 +0200 |
| commit | 0d3c24e936feefeca854073ccb40613cd6eba9a9 (patch) | |
| tree | 1f675397b924846740b0931b066ddce6f3d7eb3d /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | |
| parent | 1af0838de60e723cb02253ecc9b555c30f8f6a6f (diff) | |
| parent | ebec44a2456fbe5fe18aae88f6010f6878f0cb4a (diff) | |
Merge airlied/drm-next into drm-misc-next
Just catching up with upstream.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index b8802a561cbd..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; @@ -60,4 +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 */ |