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| author | Jordan Crouse <jcrouse@codeaurora.org> | 2020-09-03 20:03:11 -0600 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2020-09-04 12:14:07 -0700 |
| commit | 604234f33658cdd72f686be405a99646b397d0b3 (patch) | |
| tree | c1c28be8e8d62aeee20d869dec3a5651dcc18669 /drivers/gpu/drm/msm/msm_gpu.h | |
| parent | 34221545d2069dc947131f42392fd4cebabe1b39 (diff) | |
| download | lwn-604234f33658cdd72f686be405a99646b397d0b3.tar.gz lwn-604234f33658cdd72f686be405a99646b397d0b3.zip | |
drm/msm: Enable expanded apriv support for a650
a650 supports expanded apriv support that allows us to map critical buffers
(ringbuffer and memstore) as as privileged to protect them from corruption.
Cc: stable@vger.kernel.org
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpu.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index 0db117a7339b..37cffac4cbe3 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -15,6 +15,7 @@ #include "msm_drv.h" #include "msm_fence.h" #include "msm_ringbuffer.h" +#include "msm_gem.h" struct msm_gem_submit; struct msm_gpu_perfcntr; @@ -139,6 +140,8 @@ struct msm_gpu { } devfreq; struct msm_gpu_state *crashstate; + /* True if the hardware supports expanded apriv (a650 and newer) */ + bool hw_apriv; }; /* It turns out that all targets use the same ringbuffer size */ @@ -327,4 +330,12 @@ static inline void msm_gpu_crashstate_put(struct msm_gpu *gpu) mutex_unlock(&gpu->dev->struct_mutex); } +/* + * Simple macro to semi-cleanly add the MAP_PRIV flag for targets that can + * support expanded privileges + */ +#define check_apriv(gpu, flags) \ + (((gpu)->hw_apriv ? MSM_BO_MAP_PRIV : 0) | (flags)) + + #endif /* __MSM_GPU_H__ */ |