[ build_mem_type_table ] arch/arm/mm/mmu.c

CPU 에 따라 Cache Policy, mem_types, protection_map 설정한다.

smdk2410 에서의 설정 내용으로 cache_policies[CPOLICY_WRITEBACK] 을 설정한다.

.policy     = "writeback",

.cr_mask    = 0,

.pmd        = PMD_SECT_WB,

.pte        = PTE_BUFFERABLE|PTE_CACHEABLE,

#define PMD_SECT_WB     (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)

 

protection_map[0]=0x0000000f  L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_CACHEABLE | L_PTE_BUFFERABLE

protection_map[1]=0x0000005f  L_PTE_USER | L_PTE_EXEC | L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_CACHEABLE | L_PTE_BUFFERABLE

protection_map[2]=0x0000005f

protection_map[3]=0x0000005f

protection_map[4]=0x0000005f

protection_map[5]=0x0000005f

protection_map[6]=0x0000005f

protection_map[7]=0x0000005f

protection_map[8]=0x0000000f

protection_map[9]=0x0000005f

protection_map[10]=0x0000007f L_PTE_USER | L_PTE_WRITE | L_PTE_EXEC | L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_CACHEABLE | L_PTE_BUFFERABLE

protection_map[11]=0x0000007f

protection_map[12]=0x0000005f

protection_map[13]=0x0000005f

protection_map[14]=0x0000007f

protection_map[15]=0x0000007f

 

[MT_DEVICE]

prot_pte 0x000000a3 L_PTE_DIRTY | L_PTE_WRITE | L_PTE_YOUNG | L_PTE_PRESENT

prot_l1 0x00000011 PMD_BIT4 | PMD_TYPE_TABLE

prot_sect 0x00000412 PMD_SECT_AP_WRITE | PMD_BIT4 | PMD_TYPE_SECT | PMD_SECT_UNCACHED

domain 0x00000002 DOMAIN_IO

[MT_CACHECLEAN]

prot_pte 0x00000000

prot_l1 0x00000000

prot_sect 0x0000001e PMD_BIT4 | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE | PMD_TYPE_SECT

domain 0x00000000 DOMAIN_KERNEL

[MT_MINICLEAN]

prot_pte 0x00000000

prot_l1 0x00000000

prot_sect 0x0000001a PMD_SECT_TEX(1) | PMD_BIT4 | PMD_SECT_CACHEABLE | PMD_TYPE_SECT

domain 0x00000000 DOMAIN_KERNEL

[MT_LOW_VECTORS]

prot_pte 0x000000cf L_PTE_DIRTY | L_PTE_EXEC | L_PTE_CACHEABLE | L_PTE_BUFFERABLE | L_PTE_YOUNG | L_PTE_PRESENT

prot_l1 0x00000011 PMD_BIT4 | PMD_TYPE_TABLE

prot_sect 0x00000000

domain 0x00000001 DOMAIN_USER

[MT_HIGH_VECTORS]

prot_pte 0x000000df L_PTE_DIRTY | L_PTE_EXEC | L_PTE_USER | L_PTE_CACHEABLE | L_PTE_BUFFERABLE | L_PTE_YOUNG | L_PTE_PRESENT

prot_l1 0x00000011 PMD_BIT4 | PMD_TYPE_TABLE

prot_sect 0x00000000

domain 0x00000001 DOMAIN_USER

[MT_MEMORY]

prot_pte 0x00000000

prot_l1 0x00000000

prot_sect 0x0000041e PMD_SECT_AP_WRITE | PMD_BIT4 | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE | PMD_TYPE_SECT

domain 0x00000000 DOMAIN_KERNEL

[MT_ROM]

prot_pte 0x00000000

prot_l1 0x00000000

prot_sect 0x0000001e PMD_BIT4 | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE | PMD_TYPE_SECT

domain 0x00000000 DOMAIN_KERNEL

[MT_IXP2000_DEVICE]

prot_pte 0x000000a3 L_PTE_DIRTY | L_PTE_WRITE | L_PTE_YOUNG | L_PTE_PRESENT

prot_l1 0x00000011 PMD_BIT4 | PMD_TYPE_TABLE

prot_sect 0x00001416 PMD_SECT_TEX(1) | PMD_SECT_AP_WRITE | PMD_BIT4 | PMD_SECT_BUFFERABLE | PMD_TYPE_SECT | PMD_SECT_UNCACHED

domain 0x00000002 DOMAIN_IO

[MT_NONSHARED_DEVICE]

prot_pte 0x00000000

prot_l1 0x00000011 PMD_BIT4 | PMD_TYPE_TABLE

prot_sect 0x00002412 PMD_SECT_TEX(2) | PMD_SECT_AP_WRITE | PMD_BIT4 | PMD_TYPE_SECT

domain 0x00000002 DOMAIN_IO