drm/tegra: Add SET/GET_FLAGS IOCTLs

The DRM_TEGRA_GEM_SET_FLAGS IOCTL can be used to set the flags of a
buffer object after it has been allocated or imported. Flags associated
with a buffer object can be queried using the DRM_TEGRA_GEM_GET_FLAGS
IOCTL.

Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/include/uapi/drm/tegra_drm.h b/include/uapi/drm/tegra_drm.h
index 0829f75eb986..c15d781ecc0f 100644
--- a/include/uapi/drm/tegra_drm.h
+++ b/include/uapi/drm/tegra_drm.h
@@ -150,6 +150,23 @@ struct drm_tegra_gem_get_tiling {
         __u32 pad;
 };
 
+#define DRM_TEGRA_GEM_BOTTOM_UP         (1 << 0)
+#define DRM_TEGRA_GEM_FLAGS             (DRM_TEGRA_GEM_BOTTOM_UP)
+
+struct drm_tegra_gem_set_flags {
+        /* input */
+        __u32 handle;
+        /* output */
+        __u32 flags;
+};
+
+struct drm_tegra_gem_get_flags {
+        /* input */
+        __u32 handle;
+        /* output */
+        __u32 flags;
+};
+
 #define DRM_TEGRA_GEM_CREATE            0x00
 #define DRM_TEGRA_GEM_MMAP              0x01
 #define DRM_TEGRA_SYNCPT_READ           0x02
@@ -162,6 +179,8 @@ struct drm_tegra_gem_get_tiling {
 #define DRM_TEGRA_GET_SYNCPT_BASE       0x09
 #define DRM_TEGRA_GEM_SET_TILING        0x0a
 #define DRM_TEGRA_GEM_GET_TILING        0x0b
+#define DRM_TEGRA_GEM_SET_FLAGS         0x0c
+#define DRM_TEGRA_GEM_GET_FLAGS         0x0d
 
 #define DRM_IOCTL_TEGRA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_CREATE, struct drm_tegra_gem_create)
 #define DRM_IOCTL_TEGRA_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_MMAP, struct drm_tegra_gem_mmap)
@@ -175,5 +194,7 @@ struct drm_tegra_gem_get_tiling {
 #define DRM_IOCTL_TEGRA_GET_SYNCPT_BASE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GET_SYNCPT_BASE, struct drm_tegra_get_syncpt_base)
 #define DRM_IOCTL_TEGRA_GEM_SET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_SET_TILING, struct drm_tegra_gem_set_tiling)
 #define DRM_IOCTL_TEGRA_GEM_GET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_GET_TILING, struct drm_tegra_gem_get_tiling)
+#define DRM_IOCTL_TEGRA_GEM_SET_FLAGS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_SET_FLAGS, struct drm_tegra_gem_set_flags)
+#define DRM_IOCTL_TEGRA_GEM_GET_FLAGS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_GET_FLAGS, struct drm_tegra_gem_get_flags)
 
 #endif