arch/arm/mach-s5pv310/include/mach/sysmmu.h

   1 /* linux/arch/arm/mach-s5pv310/include/mach/sysmmu.h
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com/
   5  *
   6  * Samsung sysmmu driver for S5PV310
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11 */
  12
  13 #ifndef __ASM_ARM_ARCH_SYSMMU_H
  14 #define __ASM_ARM_ARCH_SYSMMU_H __FILE__
  15
  16 #define S5PV310_SYSMMU_TOTAL_IPNUM      16
  17 #define S5P_SYSMMU_TOTAL_IPNUM          S5PV310_SYSMMU_TOTAL_IPNUM
  18
  19 enum s5pv310_sysmmu_ips {
  20         SYSMMU_MDMA,
  21         SYSMMU_SSS,
  22         SYSMMU_FIMC0,
  23         SYSMMU_FIMC1,
  24         SYSMMU_FIMC2,
  25         SYSMMU_FIMC3,
  26         SYSMMU_JPEG,
  27         SYSMMU_FIMD0,
  28         SYSMMU_FIMD1,
  29         SYSMMU_PCIe,
  30         SYSMMU_G2D,
  31         SYSMMU_ROTATOR,
  32         SYSMMU_MDMA2,
  33         SYSMMU_TV,
  34         SYSMMU_MFC_L,
  35         SYSMMU_MFC_R,
  36 };
  37
  38 static char *sysmmu_ips_name[S5PV310_SYSMMU_TOTAL_IPNUM] = {
  39         "SYSMMU_MDMA"   ,
  40         "SYSMMU_SSS"    ,
  41         "SYSMMU_FIMC0"  ,
  42         "SYSMMU_FIMC1"  ,
  43         "SYSMMU_FIMC2"  ,
  44         "SYSMMU_FIMC3"  ,
  45         "SYSMMU_JPEG"   ,
  46         "SYSMMU_FIMD0"  ,
  47         "SYSMMU_FIMD1"  ,
  48         "SYSMMU_PCIe"   ,
  49         "SYSMMU_G2D"    ,
  50         "SYSMMU_ROTATOR",
  51         "SYSMMU_MDMA2"  ,
  52         "SYSMMU_TV"     ,
  53         "SYSMMU_MFC_L"  ,
  54         "SYSMMU_MFC_R"  ,
  55 };
  56
  57 typedef enum s5pv310_sysmmu_ips sysmmu_ips;
  58
  59 struct sysmmu_tt_info {
  60         unsigned long *pgd;
  61         unsigned long pgd_paddr;
  62         unsigned long *pte;
  63 };
  64
  65 struct sysmmu_controller {
  66         const char              *name;
  67
  68         /* channels registers */
  69         void __iomem            *regs;
  70
  71         /* channel irq */
  72         unsigned int            irq;
  73
  74         sysmmu_ips              ips;
  75
  76         /* Translation Table Info. */
  77         struct sysmmu_tt_info   *tt_info;
  78
  79         struct resource         *mem;
  80         struct device           *dev;
  81
  82         /* SysMMU controller enable - true : enable */
  83         bool                    enable;
  84 };
  85
  86 /**
  87  * s5p_sysmmu_enable() - enable system mmu of ip
  88  * @ips: The ip connected system mmu.
  89  *
  90  * This function enable system mmu to transfer address
  91  * from virtual address to physical address
  92  */
  93 int s5p_sysmmu_enable(sysmmu_ips ips);
  94
  95 /**
  96  * s5p_sysmmu_disable() - disable sysmmu mmu of ip
  97  * @ips: The ip connected system mmu.
  98  *
  99  * This function disable system mmu to transfer address
 100  * from virtual address to physical address
 101  */
 102 int s5p_sysmmu_disable(sysmmu_ips ips);
 103
 104 /**
 105  * s5p_sysmmu_set_tablebase_pgd() - set page table base address to refer page table
 106  * @ips: The ip connected system mmu.
 107  * @pgd: The page table base address.
 108  *
 109  * This function set page table base address
 110  * When system mmu transfer address from virtaul address to physical address,
 111  * system mmu refer address information from page table
 112  */
 113 int s5p_sysmmu_set_tablebase_pgd(sysmmu_ips ips, unsigned long pgd);
 114
 115 /**
 116  * s5p_sysmmu_tlb_invalidate() - flush all TLB entry in system mmu
 117  * @ips: The ip connected system mmu.
 118  *
 119  * This function flush all TLB entry in system mmu
 120  */
 121 int s5p_sysmmu_tlb_invalidate(sysmmu_ips ips);
 122 #endif /* __ASM_ARM_ARCH_SYSMMU_H */