diff options
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_gem.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_gem.h | 4 | ||||
| -rw-r--r-- | include/uapi/drm/exynos_drm.h | 17 |
4 files changed, 31 insertions, 1 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 0dcfa04830ea..5344940c8a07 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -370,6 +370,8 @@ static const struct vm_operations_struct exynos_drm_gem_vm_ops = { static const struct drm_ioctl_desc exynos_ioctls[] = { DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, DRM_AUTH | DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl, + DRM_AUTH | DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl, diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 54b639497d23..2914d62d0d80 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -280,6 +280,15 @@ int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, return 0; } +int exynos_drm_gem_map_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_exynos_gem_map *args = data; + + return exynos_drm_gem_dumb_map_offset(file_priv, dev, args->handle, + &args->offset); +} + dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev, unsigned int gem_handle, struct drm_file *filp) diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 9ca5047959ec..00223052b87b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -71,6 +71,10 @@ struct exynos_drm_gem *exynos_drm_gem_create(struct drm_device *dev, int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +/* get fake-offset of gem object that can be used with mmap. */ +int exynos_drm_gem_map_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + /* * get dma address from gem handle and this function could be used for * other drivers such as 2d/3d acceleration drivers. diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h index d2a5bb1c22db..3947c2eb8d69 100644 --- a/include/uapi/drm/exynos_drm.h +++ b/include/uapi/drm/exynos_drm.h @@ -33,6 +33,19 @@ struct drm_exynos_gem_create { }; /** + * A structure for getting a fake-offset that can be used with mmap. + * + * @handle: handle of gem object. + * @reserved: just padding to be 64-bit aligned. + * @offset: a fake-offset of gem object. + */ +struct drm_exynos_gem_map { + __u32 handle; + __u32 reserved; + __u64 offset; +}; + +/** * A structure to gem information. * * @handle: a handle to gem object created. @@ -284,6 +297,7 @@ struct drm_exynos_ipp_cmd_ctrl { }; #define DRM_EXYNOS_GEM_CREATE 0x00 +#define DRM_EXYNOS_GEM_MAP 0x01 /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */ #define DRM_EXYNOS_GEM_GET 0x04 #define DRM_EXYNOS_VIDI_CONNECTION 0x07 @@ -301,7 +315,8 @@ struct drm_exynos_ipp_cmd_ctrl { #define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create) - +#define DRM_IOCTL_EXYNOS_GEM_MAP DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_GEM_MAP, struct drm_exynos_gem_map) #define DRM_IOCTL_EXYNOS_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_GEM_GET, struct drm_exynos_gem_info) |