C++ (Cpp) ttm_agp_tt_create 예제들

예제 #1

파일: radeon_ttm.c 프로젝트: laitianli/loongson-linux-2.6.36-3_mips

struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
				    unsigned long size, uint32_t page_flags,
				    struct page *dummy_read_page)
{
	struct radeon_device *rdev;
	struct radeon_ttm_tt *gtt;

	rdev = radeon_get_rdev(bdev);
#if __OS_HAS_AGP
	if (rdev->flags & RADEON_IS_AGP) {
		return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge,
					 size, page_flags, dummy_read_page);
	}
#endif

	gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
	if (gtt == NULL) {
		return NULL;
	}
	gtt->ttm.ttm.func = &radeon_backend_func;
	gtt->rdev = rdev;
	if (ttm_dma_tt_init(&gtt->ttm, bdev, size, page_flags, dummy_read_page)) {
		kfree(gtt);
		return NULL;
	}
	return &gtt->ttm.ttm;
}

예제 #2

파일: radeon_ttm.c 프로젝트: mihaicarabas/dragonfly

static struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
				    unsigned long size, uint32_t page_flags,
				    vm_page_t dummy_read_page)
{
	struct radeon_device *rdev;
	struct radeon_ttm_tt *gtt;

	rdev = radeon_get_rdev(bdev);
#if __OS_HAS_AGP
#ifdef DUMBBELL_WIP
	if (rdev->flags & RADEON_IS_AGP) {
		return ttm_agp_tt_create(bdev, rdev->ddev->agp->agpdev,
					 size, page_flags, dummy_read_page);
	}
#endif /* DUMBBELL_WIP */
#endif

	gtt = kmalloc(sizeof(struct radeon_ttm_tt), DRM_MEM_DRIVER,
		      M_WAITOK | M_ZERO);
	if (gtt == NULL) {
		return NULL;
	}
	gtt->ttm.ttm.func = &radeon_backend_func;
	gtt->rdev = rdev;
	if (ttm_dma_tt_init(&gtt->ttm, bdev, size, page_flags, dummy_read_page)) {
		drm_free(gtt, DRM_MEM_DRIVER);
		return NULL;
	}
	return &gtt->ttm.ttm;
}

예제 #3

파일: radeon_ttm.c 프로젝트: orumin/openbsd-efivars

static struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
				    unsigned long size, uint32_t page_flags,
				    struct vm_page *dummy_read_page)
{
	struct radeon_device *rdev;
	struct radeon_ttm_tt *gtt;

	rdev = radeon_get_rdev(bdev);
#if __OS_HAS_AGP
	if (rdev->flags & RADEON_IS_AGP) {
		return ttm_agp_tt_create(bdev, rdev->ddev->agp,
					 size, page_flags, dummy_read_page);
	}
#endif

	gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
	if (gtt == NULL) {
		return NULL;
	}
	gtt->ttm.ttm.func = &radeon_backend_func;
	gtt->rdev = rdev;
	if (ttm_dma_tt_init(&gtt->ttm, bdev, size, page_flags, dummy_read_page)) {
		kfree(gtt);
		return NULL;
	}

	gtt->segs = mallocarray(gtt->ttm.ttm.num_pages,
	    sizeof(bus_dma_segment_t), M_DRM, M_WAITOK | M_ZERO);
	if (gtt->segs == NULL) {
		ttm_dma_tt_fini(&gtt->ttm);
		free(gtt, M_DRM, 0);
		return NULL;
	}

	if (bus_dmamap_create(rdev->dmat, size, gtt->ttm.ttm.num_pages, size,
			      0, BUS_DMA_WAITOK, &gtt->map)) {
		free(gtt->segs, M_DRM, 0);
		ttm_dma_tt_fini(&gtt->ttm);
		free(gtt, M_DRM, 0);
		return NULL;
	}

	return &gtt->ttm.ttm;
}