linux/drivers/staging/media/atomisp/pci/mmu/sh_mmu_mrfld.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Merrifield PNW Camera Imaging ISP subsystem.
 *
 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
 *
 * Copyright (c) 2012 Silicon Hive www.siliconhive.com.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *
 */
#include "type_support.h"
#include "mmu/isp_mmu.h"
#include "mmu/sh_mmu_mrfld.h"
#include "atomisp_compat.h"

#define MERR_VALID_PTE_MASK …

/*
 * include SH header file here
 */

static unsigned int sh_phys_to_pte(struct isp_mmu *mmu,
				   phys_addr_t phys)
{ … }

static phys_addr_t sh_pte_to_phys(struct isp_mmu *mmu,
				  unsigned int pte)
{ … }

static unsigned int sh_get_pd_base(struct isp_mmu *mmu,
				   phys_addr_t phys)
{ … }

/*
 * callback to flush tlb.
 *
 * tlb_flush_range will at least flush TLBs containing
 * address mapping from addr to addr + size.
 *
 * tlb_flush_all will flush all TLBs.
 *
 * tlb_flush_all is must be provided. if tlb_flush_range is
 * not valid, it will set to tlb_flush_all by default.
 */
static void sh_tlb_flush(struct isp_mmu *mmu)
{ … }

struct isp_mmu_client sh_mmu_mrfld = …;