drivers/gpu/drm/qxl/qxl_prime.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/qxl/qxl_prime.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/qxl/qxl_prime.c
Extension
.c
Size
2209 bytes
Lines
76
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#include "qxl_drv.h"
#include "qxl_object.h"

/* Empty Implementations as there should not be any other driver for a virtual
 * device that might share buffers with qxl */

int qxl_gem_prime_pin(struct drm_gem_object *obj)
{
	struct qxl_bo *bo = gem_to_qxl_bo(obj);

	return qxl_bo_pin_locked(bo);
}

void qxl_gem_prime_unpin(struct drm_gem_object *obj)
{
	struct qxl_bo *bo = gem_to_qxl_bo(obj);

	qxl_bo_unpin_locked(bo);
}

struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
	return ERR_PTR(-ENOSYS);
}

struct drm_gem_object *qxl_gem_prime_import_sg_table(
	struct drm_device *dev, struct dma_buf_attachment *attach,
	struct sg_table *table)
{
	return ERR_PTR(-ENOSYS);
}

int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
{
	struct qxl_bo *bo = gem_to_qxl_bo(obj);
	int ret;

	ret = qxl_bo_vmap_locked(bo, map);
	if (ret < 0)
		return ret;

	return 0;
}

void qxl_gem_prime_vunmap(struct drm_gem_object *obj,
			  struct iosys_map *map)
{
	struct qxl_bo *bo = gem_to_qxl_bo(obj);

	qxl_bo_vunmap_locked(bo);
}

Annotation

Implementation Notes