This flag sets IOMMU_PRIV, which is required for some a6xx GMU objects.
Signed-off-by: Jonathan Marek jonathan@marek.ca Reviewed-by: Jordan Crouse jcrouse@codeauorora.org --- drivers/gpu/drm/msm/msm_gem.c | 3 +++ drivers/gpu/drm/msm/msm_gem.h | 1 + 2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index d8f56a34c117..6277fde13df9 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -428,6 +428,9 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj, if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) prot |= IOMMU_WRITE;
+ if (msm_obj->flags & MSM_BO_MAP_PRIV) + prot |= IOMMU_PRIV; + WARN_ON(!mutex_is_locked(&msm_obj->lock));
if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index 30584eaf8cc8..972490b14ba5 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -13,6 +13,7 @@
/* Additional internal-use only BO flags: */ #define MSM_BO_STOLEN 0x10000000 /* try to use stolen/splash memory */ +#define MSM_BO_MAP_PRIV 0x20000000 /* use IOMMU_PRIV when mapping */
struct msm_gem_address_space { const char *name;