/* SPDX-License-Identifier: MIT */
#ifndef __NOVA_DRM_H__
#define __NOVA_DRM_H__
#include "drm.h"
/* DISCLAIMER: Do not use, this is not a stable uAPI.
*
* This uAPI serves only testing purposes as long as this driver is still in
* development. It is required to implement and test infrastructure which is
* upstreamed in the context of this driver. See also [1].
*
* [1] https://lore.kernel.org/dri-devel/Zfsj0_tb-0-tNrJy@cassiopeiae/T/#u
*/
#if defined(__cplusplus)
extern "C" {
#endif
/*
* NOVA_GETPARAM_VRAM_BAR_SIZE
*
* Query the VRAM BAR size in bytes.
*/
#define NOVA_GETPARAM_VRAM_BAR_SIZE 0x1
/**
* struct drm_nova_getparam - query GPU and driver metadata
*/
struct drm_nova_getparam {
/**
* @param: The identifier of the parameter to query.
*/
__u64 param;
/**
* @value: The value for the specified parameter.
*/
__u64 value;
};
/**
* struct drm_nova_gem_create - create a new DRM GEM object
*/
struct drm_nova_gem_create {
/**
* @handle: The handle of the new DRM GEM object.
*/
__u32 handle;
/**
* @pad: 32 bit padding, should be 0.
*/
__u32 pad;
/**
* @size: The size of the new DRM GEM object.
*/
__u64 size;
};
/**
* struct drm_nova_gem_info - query DRM GEM object metadata
*/
struct drm_nova_gem_info {
/**
* @handle: The handle of the DRM GEM object to query.
*/
__u32 handle;
/**
* @pad: 32 bit padding, should be 0.
*/
__u32 pad;
/**
* @size: The size of the DRM GEM obejct.
*/
__u64 size;
};
#define DRM_NOVA_GETPARAM 0x00
#define DRM_NOVA_GEM_CREATE 0x01
#define DRM_NOVA_GEM_INFO 0x02
/* Note: this is an enum so that it can be resolved by Rust bindgen. */
enum {
DRM_IOCTL_NOVA_GETPARAM = DRM_IOWR(DRM_COMMAND_BASE + DRM_NOVA_GETPARAM,
struct drm_nova_getparam),
DRM_IOCTL_NOVA_GEM_CREATE = DRM_IOWR(DRM_COMMAND_BASE + DRM_NOVA_GEM_CREATE,
struct drm_nova_gem_create),
DRM_IOCTL_NOVA_GEM_INFO = DRM_IOWR(DRM_COMMAND_BASE + DRM_NOVA_GEM_INFO,
struct drm_nova_gem_info),
};
#if defined(__cplusplus)
}
#endif
#endif /* __NOVA_DRM_H__ */
