linux/drivers/gpu/drm/xe/xe_dma_buf.c

// SPDX-License-Identifier: MIT
/*
 * Copyright © 2022 Intel Corporation
 */

#include "xe_dma_buf.h"

#include <kunit/test.h>
#include <linux/dma-buf.h>
#include <linux/pci-p2pdma.h>

#include <drm/drm_device.h>
#include <drm/drm_prime.h>
#include <drm/ttm/ttm_tt.h>

#include "tests/xe_test.h"
#include "xe_bo.h"
#include "xe_device.h"
#include "xe_pm.h"
#include "xe_ttm_vram_mgr.h"
#include "xe_vm.h"

MODULE_IMPORT_NS(…);

static int xe_dma_buf_attach(struct dma_buf *dmabuf,
			     struct dma_buf_attachment *attach)
{ … }

static void xe_dma_buf_detach(struct dma_buf *dmabuf,
			      struct dma_buf_attachment *attach)
{ … }

static int xe_dma_buf_pin(struct dma_buf_attachment *attach)
{ … }

static void xe_dma_buf_unpin(struct dma_buf_attachment *attach)
{ … }

static struct sg_table *xe_dma_buf_map(struct dma_buf_attachment *attach,
				       enum dma_data_direction dir)
{ … }

static void xe_dma_buf_unmap(struct dma_buf_attachment *attach,
			     struct sg_table *sgt,
			     enum dma_data_direction dir)
{ … }

static int xe_dma_buf_begin_cpu_access(struct dma_buf *dma_buf,
				       enum dma_data_direction direction)
{ … }

static const struct dma_buf_ops xe_dmabuf_ops = …;

struct dma_buf *xe_gem_prime_export(struct drm_gem_object *obj, int flags)
{ … }

static struct drm_gem_object *
xe_dma_buf_init_obj(struct drm_device *dev, struct xe_bo *storage,
		    struct dma_buf *dma_buf)
{ … }

static void xe_dma_buf_move_notify(struct dma_buf_attachment *attach)
{ … }

static const struct dma_buf_attach_ops xe_dma_buf_attach_ops = …;

#if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST)

struct dma_buf_test_params { … };

#define to_dma_buf_test_params(_priv) …
#endif

struct drm_gem_object *xe_gem_prime_import(struct drm_device *dev,
					   struct dma_buf *dma_buf)
{ … }

#if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST)
#include "tests/xe_dma_buf.c"
#endif