diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2017-02-13 10:14:34 -0700 |
|---|---|---|
| committer | Jordan Crouse <jcrouse@codeaurora.org> | 2017-02-22 09:52:34 -0700 |
| commit | 97c202c6d7b417aa52bc9b98d252db916aafdf76 (patch) | |
| tree | c35dc5121761d5d1302bd5d960f720db2f4ef360 /drivers/gpu | |
| parent | e5de360e6f33eaa30f1c1d1016e54a6720d919ac (diff) | |
drm/msm: Mark the microcode buffers as read-only
The PFP/ME and GPMU memory needs to be GPU accessible but it
does not need to be written by the GPU. Mark them as read-only
to avoid corruption.
Change-Id: Ic0dedbadc848f0a6693a4e57567077bbab38e9a5
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_power.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 9049bf2aa68b..f5847bc60c49 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -410,7 +410,8 @@ static struct drm_gem_object *a5xx_ucode_load_bo(struct msm_gpu *gpu, void *ptr; mutex_lock(&drm->struct_mutex); - bo = msm_gem_new(drm, fw->size - 4, MSM_BO_UNCACHED); + bo = msm_gem_new(drm, fw->size - 4, + MSM_BO_UNCACHED | MSM_BO_GPU_READONLY); mutex_unlock(&drm->struct_mutex); if (IS_ERR(bo)) diff --git a/drivers/gpu/drm/msm/adreno/a5xx_power.c b/drivers/gpu/drm/msm/adreno/a5xx_power.c index e77592e2272b..e04feaadefb9 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_power.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c @@ -459,7 +459,8 @@ void a5xx_gpmu_ucode_init(struct msm_gpu *gpu) bosize = (cmds_size + (cmds_size / TYPE4_MAX_PAYLOAD) + 1) << 2; mutex_lock(&drm->struct_mutex); - a5xx_gpu->gpmu_bo = msm_gem_new(drm, bosize, MSM_BO_UNCACHED); + a5xx_gpu->gpmu_bo = msm_gem_new(drm, bosize, + MSM_BO_UNCACHED | MSM_BO_GPU_READONLY); mutex_unlock(&drm->struct_mutex); if (IS_ERR(a5xx_gpu->gpmu_bo)) |