This ioctl can be used to turn some knobs in a DRM driver. This is the counterpart of GET_CAP and serves a similar role than the various SETPARAM ioctls that are driver specific, but for DRM core.
Signed-off-by: Damien Lespiau damien.lespiau@intel.com --- drivers/gpu/drm/drm_drv.c | 1 + drivers/gpu/drm/drm_ioctl.c | 8 ++++++++ include/drm/drmP.h | 2 ++ include/uapi/drm/drm.h | 8 ++++++++ 4 files changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 288da3d..7fce2fb 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -69,6 +69,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = { DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_SET_CAP, drm_setcap, DRM_MASTER), DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index cffc7c0..e471cd9 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -300,6 +300,14 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) }
/** + * Set device/driver capabilities + */ +int drm_setcap(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + return -EINVAL; +} + +/** * Setversion ioctl. * * \param inode device inode. diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 39911dc..b9c321b 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1273,6 +1273,8 @@ extern int drm_getstats(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int drm_setcap(struct drm_device *dev, void *data, + struct drm_file *file_priv); extern int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_noop(struct drm_device *dev, void *data, diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 0430fab..d400e6f 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -627,6 +627,12 @@ struct drm_get_cap { __u64 value; };
+/** DRM_IOCTL_SET_CAP ioctl argument type */ +struct drm_set_cap { + __u64 capability; + __u64 value; +}; + #define DRM_CLOEXEC O_CLOEXEC struct drm_prime_handle { __u32 handle; @@ -659,6 +665,7 @@ struct drm_prime_handle { #define DRM_IOCTL_GEM_FLINK DRM_IOWR(0x0a, struct drm_gem_flink) #define DRM_IOCTL_GEM_OPEN DRM_IOWR(0x0b, struct drm_gem_open) #define DRM_IOCTL_GET_CAP DRM_IOWR(0x0c, struct drm_get_cap) +#define DRM_IOCTL_SET_CAP DRM_IOW( 0x0d, struct drm_set_cap)
#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, struct drm_unique) #define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, struct drm_auth) @@ -804,6 +811,7 @@ typedef struct drm_gem_close drm_gem_close_t; typedef struct drm_gem_flink drm_gem_flink_t; typedef struct drm_gem_open drm_gem_open_t; typedef struct drm_get_cap drm_get_cap_t; +typedef struct drm_set_cap drm_set_cap_t; typedef struct drm_block drm_block_t; typedef struct drm_control drm_control_t; typedef struct drm_buf_desc drm_buf_desc_t;