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/* linux/arch/arm/mach-exynos4/include/mach/sysmmu.h
*
* Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Samsung sysmmu driver for EXYNOS4
*
* 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.
*/
#ifndef __ASM_ARM_ARCH_SYSMMU_H
#define __ASM_ARM_ARCH_SYSMMU_H __FILE__
#define EXYNOS4_SYSMMU_TOTAL_IPNUM 16
#define S5P_SYSMMU_TOTAL_IPNUM EXYNOS4_SYSMMU_TOTAL_IPNUM
enum exynos4_sysmmu_ips {
SYSMMU_MDMA,
SYSMMU_SSS,
SYSMMU_FIMC0,
SYSMMU_FIMC1,
SYSMMU_FIMC2,
SYSMMU_FIMC3,
SYSMMU_JPEG,
SYSMMU_FIMD0,
SYSMMU_FIMD1,
SYSMMU_PCIe,
SYSMMU_G2D,
SYSMMU_ROTATOR,
SYSMMU_MDMA2,
SYSMMU_TV,
SYSMMU_MFC_L,
SYSMMU_MFC_R,
};
static char *sysmmu_ips_name[EXYNOS4_SYSMMU_TOTAL_IPNUM] = {
"SYSMMU_MDMA" ,
"SYSMMU_SSS" ,
"SYSMMU_FIMC0" ,
"SYSMMU_FIMC1" ,
"SYSMMU_FIMC2" ,
"SYSMMU_FIMC3" ,
"SYSMMU_JPEG" ,
"SYSMMU_FIMD0" ,
"SYSMMU_FIMD1" ,
"SYSMMU_PCIe" ,
"SYSMMU_G2D" ,
"SYSMMU_ROTATOR",
"SYSMMU_MDMA2" ,
"SYSMMU_TV" ,
"SYSMMU_MFC_L" ,
"SYSMMU_MFC_R" ,
};
typedef enum exynos4_sysmmu_ips sysmmu_ips;
struct sysmmu_tt_info {
unsigned long *pgd;
unsigned long pgd_paddr;
unsigned long *pte;
};
struct sysmmu_controller {
const char *name;
/* channels registers */
void __iomem *regs;
/* channel irq */
unsigned int irq;
sysmmu_ips ips;
/* Translation Table Info. */
struct sysmmu_tt_info *tt_info;
struct resource *mem;
struct device *dev;
/* SysMMU controller enable - true : enable */
bool enable;
};
/**
* s5p_sysmmu_enable() - enable system mmu of ip
* @ips: The ip connected system mmu.
*
* This function enable system mmu to transfer address
* from virtual address to physical address
*/
int s5p_sysmmu_enable(sysmmu_ips ips);
/**
* s5p_sysmmu_disable() - disable sysmmu mmu of ip
* @ips: The ip connected system mmu.
*
* This function disable system mmu to transfer address
* from virtual address to physical address
*/
int s5p_sysmmu_disable(sysmmu_ips ips);
/**
* s5p_sysmmu_set_tablebase_pgd() - set page table base address to refer page table
* @ips: The ip connected system mmu.
* @pgd: The page table base address.
*
* This function set page table base address
* When system mmu transfer address from virtaul address to physical address,
* system mmu refer address information from page table
*/
int s5p_sysmmu_set_tablebase_pgd(sysmmu_ips ips, unsigned long pgd);
/**
* s5p_sysmmu_tlb_invalidate() - flush all TLB entry in system mmu
* @ips: The ip connected system mmu.
*
* This function flush all TLB entry in system mmu
*/
int s5p_sysmmu_tlb_invalidate(sysmmu_ips ips);
#endif /* __ASM_ARM_ARCH_SYSMMU_H */
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