linux/drivers/gpu/drm/gma500/mmu.h

/* SPDX-License-Identifier: GPL-2.0-only */
/**************************************************************************
 * Copyright (c) 2007-2011, Intel Corporation.
 * All Rights Reserved.
 *
 **************************************************************************/

#ifndef __MMU_H
#define __MMU_H

struct psb_mmu_driver { … };

struct psb_mmu_pd;

struct psb_mmu_pt { … };

struct psb_mmu_pd { … };

extern struct psb_mmu_driver *psb_mmu_driver_init(struct drm_device *dev,
						  int trap_pagefaults,
						  int invalid_type,
						  atomic_t *msvdx_mmu_invaldc);
extern void psb_mmu_driver_takedown(struct psb_mmu_driver *driver);
extern struct psb_mmu_pd *psb_mmu_get_default_pd(struct psb_mmu_driver
						 *driver);
extern struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,
					   int trap_pagefaults,
					   int invalid_type);
extern void psb_mmu_free_pagedir(struct psb_mmu_pd *pd);
extern void psb_mmu_flush(struct psb_mmu_driver *driver);
extern void psb_mmu_remove_pfn_sequence(struct psb_mmu_pd *pd,
					unsigned long address,
					uint32_t num_pages);
extern int psb_mmu_insert_pfn_sequence(struct psb_mmu_pd *pd,
				       uint32_t start_pfn,
				       unsigned long address,
				       uint32_t num_pages, int type);
extern int psb_mmu_virtual_to_pfn(struct psb_mmu_pd *pd, uint32_t virtual,
				  unsigned long *pfn);
extern void psb_mmu_set_pd_context(struct psb_mmu_pd *pd, int hw_context);
extern int psb_mmu_insert_pages(struct psb_mmu_pd *pd, struct page **pages,
				unsigned long address, uint32_t num_pages,
				uint32_t desired_tile_stride,
				uint32_t hw_tile_stride, int type);
extern void psb_mmu_remove_pages(struct psb_mmu_pd *pd,
				 unsigned long address, uint32_t num_pages,
				 uint32_t desired_tile_stride,
				 uint32_t hw_tile_stride);

#endif