On Fri, Sep 19, 2014 at 1:47 AM, Mark yao <mark.yao@xxxxxxxxxxxxxx> wrote: > diff --git a/include/uapi/drm/rockchip_drm.h b/include/uapi/drm/rockchip_drm.h > new file mode 100644 > index 0000000..8f8e60e > --- /dev/null > +++ b/include/uapi/drm/rockchip_drm.h > @@ -0,0 +1,97 @@ > +/* > + * > + * Copyright (c) Fuzhou Rockchip Electronics Co.Ltd > + * Authors: > + * Mark Yao <yzq@xxxxxxxxxxxxxx> > + * > + * base on exynos_drm.h > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; either version 2 of the License, or (at your > + * option) any later version. > + */ > + > +#ifndef _UAPI_ROCKCHIP_DRM_H > +#define _UAPI_ROCKCHIP_DRM_H > + > +#include <drm/drm.h> > + > +/** > + * User-desired buffer creation information structure. > + * > + * @size: user-desired memory allocation size. > + * @flags: user request for setting memory type or cache attributes. > + * @handle: returned a handle to created gem object. > + * - this handle will be set by gem module of kernel side. > + */ > +struct drm_rockchip_gem_create { > + uint64_t size; > + uint32_t flags; > + uint32_t handle; > +}; > + > +/** > + * A structure for getting buffer offset. > + * > + * @handle: a pointer to gem object created. > + * @pad: just padding to be 64-bit aligned. > + * @offset: relatived offset value of the memory region allocated. > + * - this value should be set by user. > + */ > +struct drm_rockchip_gem_map_off { > + uint32_t handle; > + uint32_t pad; > + uint64_t offset; > +}; > + > +/** > + * A structure for mapping buffer. > + * > + * @handle: a handle to gem object created. > + * @pad: just padding to be 64-bit aligned. > + * @size: memory size to be mapped. > + * @mapped: having user virtual address mmaped. > + * - this variable would be filled by rockchip gem module > + * of kernel side with user virtual address which is allocated > + * by do_mmap(). > + */ > +struct drm_rockchip_gem_mmap { > + uint32_t handle; > + uint32_t pad; > + uint64_t size; > + uint64_t mapped; > +}; Could we do without the mmap ioctl? It has been a source of problems in other drivers, and the ioctl to get mmap offset, plus normal mmap() on drm device file should be sufficient BR, -R > +/** > + * A structure to gem information. > + * > + * @handle: a handle to gem object created. > + * @flags: flag value including memory type and cache attribute and > + * this value would be set by driver. > + * @size: size to memory region allocated by gem and this size would > + * be set by driver. > + */ > +struct drm_rockchip_gem_info { > + uint32_t handle; > + uint32_t flags; > + uint64_t size; > +}; > + > +#define DRM_ROCKCHIP_GEM_CREATE 0x00 > +#define DRM_ROCKCHIP_GEM_MAP_OFFSET 0x01 > +#define DRM_ROCKCHIP_GEM_MMAP 0x02 > +#define DRM_ROCKCHIP_GEM_GET 0x04 > + > +#define DRM_IOCTL_ROCKCHIP_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ > + DRM_ROCKCHIP_GEM_CREATE, struct drm_rockchip_gem_create) > + > +#define DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \ > + DRM_ROCKCHIP_GEM_MAP_OFFSET, struct drm_rockchip_gem_map_off) > + > +#define DRM_IOCTL_ROCKCHIP_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \ > + DRM_ROCKCHIP_GEM_MMAP, struct drm_rockchip_gem_mmap) > + > +#define DRM_IOCTL_ROCKCHIP_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \ > + DRM_ROCKCHIP_GEM_GET, struct drm_rockchip_gem_info) > +#endif /* _UAPI_ROCKCHIP_DRM_H */ _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel