taken from modesetting branch but could be useful outside it.
return drmIoctlTimeout(fd, DRM_IOCTL_MM_UNLOCK, &arg);
}
+int drmMMInfo(int fd, unsigned memType, uint64_t *size)
+{
+ struct drm_mm_info_arg arg;
+
+ memset(&arg, 0, sizeof(arg));
+
+ arg.mem_type = memType;
+
+ if (ioctl(fd, DRM_IOCTL_MM_INFO, &arg))
+ return -errno;
+
+ *size = arg.p_size;
+ return 0;
+}
+
int drmBOVersion(int fd, unsigned int *major,
unsigned int *minor,
unsigned int *patchlevel)
extern int drmMMTakedown(int fd, unsigned memType);
extern int drmMMLock(int fd, unsigned memType, int lockBM, int ignoreNoEvict);
extern int drmMMUnlock(int fd, unsigned memType, int unlockBM);
+extern int drmMMInfo(int fd, unsigned memType, uint64_t *size);
extern int drmBOSetStatus(int fd, drmBO *buf,
uint64_t flags, uint64_t mask,
unsigned int hint,
}
man->has_type = 1;
man->use_type = 1;
+ man->size = p_size;
INIT_LIST_HEAD(&man->lru);
INIT_LIST_HEAD(&man->pinned);
return 0;
}
+int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_mm_info_arg *arg = data;
+ struct drm_buffer_manager *bm = &dev->bm;
+ struct drm_bo_driver *driver = dev->driver->bo_driver;
+ struct drm_mem_type_manager *man;
+ int ret = 0;
+ int mem_type = arg->mem_type;
+
+ if (!driver) {
+ DRM_ERROR("Buffer objects are not supported by this driver\n");
+ return -EINVAL;
+ }
+
+ if (mem_type >= DRM_BO_MEM_TYPES) {
+ DRM_ERROR("Illegal memory type %d\n", arg->mem_type);
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->struct_mutex);
+ if (!bm->initialized) {
+ DRM_ERROR("DRM memory manager was not initialized\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+
+ man = &bm->man[arg->mem_type];
+
+ arg->p_size = man->size;
+
+out:
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
/*
* buffer object vm functions.
*/
DRM_IOCTL_DEF(DRM_IOCTL_BO_INFO, drm_bo_info_ioctl, DRM_AUTH),
DRM_IOCTL_DEF(DRM_IOCTL_BO_WAIT_IDLE, drm_bo_wait_idle_ioctl, DRM_AUTH),
DRM_IOCTL_DEF(DRM_IOCTL_BO_VERSION, drm_bo_version_ioctl, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MM_INFO, drm_mm_info_ioctl, 0),
};
#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
unsigned long io_offset;
unsigned long io_size;
void *io_addr;
+ uint64_t size; /* size of managed area for reporting to userspace */
};
struct drm_bo_lock {
extern int drm_mm_takedown_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int drm_mm_lock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int drm_mm_unlock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv);
+extern int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int drm_bo_version_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int drm_bo_driver_finish(struct drm_device *dev);
extern int drm_bo_driver_init(struct drm_device *dev);
uint64_t p_size;
};
+struct drm_mm_info_arg {
+ unsigned int mem_type;
+ uint64_t p_size;
+};
+
/**
* \name Ioctls Definitions
*/
#define DRM_IOCTL_BO_INFO DRM_IOWR(0xd4, struct drm_bo_reference_info_arg)
#define DRM_IOCTL_BO_WAIT_IDLE DRM_IOWR(0xd5, struct drm_bo_map_wait_idle_arg)
#define DRM_IOCTL_BO_VERSION DRM_IOR(0xd6, struct drm_bo_version_arg)
+#define DRM_IOCTL_MM_INFO DRM_IOWR(0xd7, struct drm_mm_info_arg)
/*@}*/