Cregit: Linux 7.2: xe_ttm_stolen

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Matthew Brost	53	55.79%	1	16.67%
Maarten Lankhorst	35	36.84%	1	16.67%
Sanjay Yadav	4	4.21%	1	16.67%
Lucas De Marchi	1	1.05%	1	16.67%
Thomas Hellstrom	1	1.05%	1	16.67%
Matthew Auld	1	1.05%	1	16.67%
Total	95		6

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

#ifndef _XE_TTM_STOLEN_MGR_H_
#define _XE_TTM_STOLEN_MGR_H_

#include <linux/types.h>

struct ttm_resource;
struct xe_bo;
struct xe_device;

/**
 * struct xe_ttm_stolen_mgr - Xe TTM stolen memory manager
 */
struct xe_ttm_stolen_mgr {
	/** @io_base: PCI base offset for CPU I/O access */
	resource_size_t io_base;
	/** @stolen_base: GPU base offset */
	resource_size_t stolen_base;
	/** @mapping: I/O memory mapping for CPU access */
	void __iomem *mapping;
};

int xe_ttm_stolen_mgr_init(struct xe_device *xe);
int xe_ttm_stolen_io_mem_reserve(struct xe_device *xe, struct ttm_resource *mem);
bool xe_ttm_stolen_cpu_access_needs_ggtt(struct xe_device *xe);
u64 xe_ttm_stolen_io_offset(struct xe_bo *bo, u32 offset);
u64 xe_ttm_stolen_gpu_offset(struct xe_device *xe);

#endif

xe_ttm_stolen_mgr.h