MSM_PREP_WRITE 765 drivers/gpu/drm/msm/msm_gem.c bool write = !!(op & MSM_PREP_WRITE); MSM_PREP_WRITE 134 include/uapi/drm/msm_drm.h #define MSM_PREP_FLAGS (MSM_PREP_READ | MSM_PREP_WRITE | MSM_PREP_NOSYNC)