diff options
| author | Rob Clark <robdclark@gmail.com> | 2014-03-03 09:42:33 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-03-31 10:27:46 -0400 |
| commit | 93ddb0d3b022dfbd963f243bd01741643cebfb28 (patch) | |
| tree | c8493b496943e3f6329847229a75a1d1a82db293 /include/uapi | |
| parent | 060530f1ea6740eb767085008d183f89ccdd289c (diff) | |
| download | linux-93ddb0d3b022dfbd963f243bd01741643cebfb28.tar.gz linux-93ddb0d3b022dfbd963f243bd01741643cebfb28.tar.bz2 linux-93ddb0d3b022dfbd963f243bd01741643cebfb28.zip | |
drm/msm: validate flags, etc
After reading a nice article on LWN[1], I went back and double checked
my handling of invalid-input checking. Turns out there were a couple
places I had missed.
Since the driver is fairly young, and the devices it supports are really
only just barely usable for basic stuff (serial console) with an
upstream kernel, I think we should fix this now and revert specific
parts of this patch later in the unlikely event that a regression is
reported.
[1] https://lwn.net/Articles/588444/
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/msm_drm.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index bf91a78a0b0e..0664c31f010c 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -70,6 +70,12 @@ struct drm_msm_param { #define MSM_BO_WC 0x00020000 #define MSM_BO_UNCACHED 0x00040000 +#define MSM_BO_FLAGS (MSM_BO_SCANOUT | \ + MSM_BO_GPU_READONLY | \ + MSM_BO_CACHED | \ + MSM_BO_WC | \ + MSM_BO_UNCACHED) + struct drm_msm_gem_new { uint64_t size; /* in */ uint32_t flags; /* in, mask of MSM_BO_x */ @@ -86,6 +92,8 @@ struct drm_msm_gem_info { #define MSM_PREP_WRITE 0x02 #define MSM_PREP_NOSYNC 0x04 +#define MSM_PREP_FLAGS (MSM_PREP_READ | MSM_PREP_WRITE | MSM_PREP_NOSYNC) + struct drm_msm_gem_cpu_prep { uint32_t handle; /* in */ uint32_t op; /* in, mask of MSM_PREP_x */ @@ -153,6 +161,9 @@ struct drm_msm_gem_submit_cmd { */ #define MSM_SUBMIT_BO_READ 0x0001 #define MSM_SUBMIT_BO_WRITE 0x0002 + +#define MSM_SUBMIT_BO_FLAGS (MSM_SUBMIT_BO_READ | MSM_SUBMIT_BO_WRITE) + struct drm_msm_gem_submit_bo { uint32_t flags; /* in, mask of MSM_SUBMIT_BO_x */ uint32_t handle; /* in, GEM handle */ |