arch/arm/mach-omap2/mmu.h

   1 #ifndef __MACH_OMAP2_MMU_H
   2 #define __MACH_OMAP2_MMU_H
   3
   4 #include "prcm-regs.h"
   5 #include <asm/arch/mmu.h>
   6 #include <asm/io.h>
   7
   8 #define MMU_LOCK_BASE_MASK              (0x1f << 10)
   9 #define MMU_LOCK_VICTIM_MASK            (0x1f << 4)
  10
  11 #define OMAP_MMU_IRQ_MULTIHITFAULT      0x00000010
  12 #define OMAP_MMU_IRQ_TABLEWALKFAULT     0x00000008
  13 #define OMAP_MMU_IRQ_EMUMISS            0x00000004
  14 #define OMAP_MMU_IRQ_TRANSLATIONFAULT   0x00000002
  15 #define OMAP_MMU_IRQ_TLBMISS            0x00000001
  16
  17 #define OMAP_MMU_CAM_VATAG_MASK         0xfffff000
  18 #define OMAP_MMU_CAM_P                  0x00000008
  19 #define OMAP_MMU_CAM_V                  0x00000004
  20 #define OMAP_MMU_CAM_PAGESIZE_MASK      0x00000003
  21 #define OMAP_MMU_CAM_PAGESIZE_1MB       0x00000000
  22 #define OMAP_MMU_CAM_PAGESIZE_64KB      0x00000001
  23 #define OMAP_MMU_CAM_PAGESIZE_4KB       0x00000002
  24 #define OMAP_MMU_CAM_PAGESIZE_16MB      0x00000003
  25
  26 #define OMAP_MMU_RAM_PADDR_MASK         0xfffff000
  27 #define OMAP_MMU_RAM_ENDIANNESS         0x00000200
  28 #define OMAP_MMU_RAM_ENDIANNESS_BIG     0x00000200
  29 #define OMAP_MMU_RAM_ENDIANNESS_LITTLE  0x00000000
  30 #define OMAP_MMU_RAM_ELEMENTSIZE_MASK   0x00000180
  31 #define OMAP_MMU_RAM_ELEMENTSIZE_8      0x00000000
  32 #define OMAP_MMU_RAM_ELEMENTSIZE_16     0x00000080
  33 #define OMAP_MMU_RAM_ELEMENTSIZE_32     0x00000100
  34 #define OMAP_MMU_RAM_ELEMENTSIZE_NONE   0x00000180
  35 #define OMAP_MMU_RAM_MIXED              0x00000040
  36
  37 #define IOMAP_VAL       0x3f
  38
  39 #define omap_dsp_request_mem()  do { } while (0)
  40 #define omap_dsp_release_mem()  do { } while (0)
  41
  42 #define INIT_TLB_ENTRY(ent,v,p,ps)                              \
  43 do {                                                            \
  44         (ent)->va       = (v);                                  \
  45         (ent)->pa       = (p);                                  \
  46         (ent)->pgsz     = (ps);                                 \
  47         (ent)->prsvd    = 0;                                    \
  48         (ent)->endian   = OMAP_MMU_RAM_ENDIANNESS_LITTLE;       \
  49         (ent)->elsz     = OMAP_MMU_RAM_ELEMENTSIZE_16;          \
  50         (ent)->mixed    = 0;                                    \
  51         (ent)->tlb      = 1;                                    \
  52 } while (0)
  53
  54 #define INIT_TLB_ENTRY_4KB_PRESERVED(ent,v,p) \
  55 do {                                                            \
  56         (ent)->va       = (v);                                  \
  57         (ent)->pa       = (p);                                  \
  58         (ent)->pgsz     = OMAP_MMU_CAM_PAGESIZE_4KB;            \
  59         (ent)->prsvd    = OMAP_MMU_CAM_P;                       \
  60         (ent)->endian   = OMAP_MMU_RAM_ENDIANNESS_LITTLE;       \
  61         (ent)->elsz     = OMAP_MMU_RAM_ELEMENTSIZE_16;          \
  62         (ent)->mixed    = 0;                                    \
  63 } while (0)
  64
  65 #define INIT_TLB_ENTRY_4KB_ES32_PRESERVED(ent,v,p)              \
  66 do {                                                            \
  67         (ent)->va       = (v);                                  \
  68         (ent)->pa       = (p);                                  \
  69         (ent)->pgsz     = OMAP_MMU_CAM_PAGESIZE_4KB;            \
  70         (ent)->prsvd    = OMAP_MMU_CAM_P;                       \
  71         (ent)->endian   = OMAP_MMU_RAM_ENDIANNESS_LITTLE;       \
  72         (ent)->elsz     = OMAP_MMU_RAM_ELEMENTSIZE_32;          \
  73         (ent)->mixed    = 0;                                    \
  74 } while (0)
  75
  76 extern struct omap_mmu_ops omap2_mmu_ops;
  77
  78 struct omap_mmu_tlb_entry {
  79         unsigned long va;
  80         unsigned long pa;
  81         unsigned int pgsz, prsvd, valid;
  82
  83         u32 endian, elsz, mixed;
  84         unsigned int tlb;
  85 };
  86
  87 static inline unsigned long
  88 omap_mmu_read_reg(struct omap_mmu *mmu, unsigned long reg)
  89 {
  90         return __raw_readl(mmu->base + reg);
  91 }
  92
  93 static inline void omap_mmu_write_reg(struct omap_mmu *mmu,
  94                                unsigned long val, unsigned long reg)
  95 {
  96         __raw_writel(val, mmu->base + reg);
  97 }
  98 static inline void omap_mmu_itack(struct omap_mmu *mmu)
  99 {
 100 }
 101 #endif /* __MACH_OMAP2_MMU_H */