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#ifndef QXL_DRM_H
#define QXL_DRM_H
#include "drm.h"
/* Please note that modifications to all structs defined here are
* subject to backwards-compatibility constraints.
*/
#define QXL_GEM_DOMAIN_CPU 0
#define QXL_GEM_DOMAIN_VRAM 1
#define DRM_QXL_ALLOC 0x00
#define DRM_QXL_INCREF 0x01
#define DRM_QXL_DECREF 0x02
#define DRM_QXL_MAP 0x03
#define DRM_QXL_UNMAP 0x04
#define DRM_QXL_EXECBUFFER 0x05
enum {
QXL_ALLOC_TYPE_DATA,
QXL_ALLOC_TYPE_SURFACE,
QXL_ALLOC_TYPE_SURFACE_PRIMARY,
};
struct drm_qxl_alloc {
uint32_t type;
uint32_t size;
uint64_t handle; // output // 0 is an invalid handle
};
struct drm_qxl_incref {
uint64_t handle;
};
struct drm_qxl_decref {
uint64_t handle;
};
struct drm_qxl_map {
uint64_t handle;
uint64_t addr; // output // cast to pointer
};
struct drm_qxl_unmap {
uint64_t handle;
};
struct drm_qxl_reloc { // 32?
uint64_t offset;
uint64_t handle;
uint64_t delta;
};
struct drm_qxl_command {
uint32_t type;
uint32_t command_size;
uint8_t *command;
uint32_t relocs_num;
struct drm_qxl_reloc* relocs;
};
/* XXX: call it drm_qxl_commands? */
struct drm_qxl_execbuffer {
uint32_t flags; // for future
uint32_t comands_num;
struct drm_qxl_command* commands;
uint8_t spare[16]; // spare for future
};
// TODO: why have a seperate mmap and alloc ioctl? also, why not just unmmap on the last
// decref, i.e. when destroyed? is there a huge performance gain to unmapping stuff before
// destroying? and can anyone use an allocated but not mapped memory from userspace??
#define DRM_IOCTL_QXL_ALLOC DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_ALLOC, struct drm_qxl_alloc)
#define DRM_IOCTL_QXL_INCREF DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_INCREF, struct drm_qxl_incref)
#define DRM_IOCTL_QXL_DECREF DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_DECREF, struct drm_qxl_decref)
#define DRM_IOCTL_QXL_MAP DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_MAP, struct drm_qxl_map)
#define DRM_IOCTL_QXL_UNMAP DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_UNMAP, struct drm_qxl_unmap)
#define DRM_IOCTL_QXL_EXECBUFFER DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_EXECBUFFER, struct drm_qxl_execbuffer)
#endif
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