--- np2/i386c/ia32/paging.c 2005/03/12 12:32:54 1.28 +++ np2/i386c/ia32/paging.c 2011/01/15 17:17:23 1.31 @@ -1,5 +1,3 @@ -/* $Id: paging.c,v 1.28 2005/03/12 12:32:54 monaka Exp $ */ - /* * Copyright (c) 2003-2004 NONAKA Kimihiro * All rights reserved. @@ -182,15 +180,18 @@ static const UINT8 page_access_bit[32] = * +- CR3(物理アドレス) */ -static UINT32 MEMCALL paging(const UINT32 laddr, const int ucrw) GCC_ATTR_REGPARM; +static UINT32 MEMCALL paging(const UINT32 laddr, const int ucrw); #if defined(IA32_SUPPORT_TLB) -static void MEMCALL tlb_update(const UINT32 laddr, const UINT entry, const int ucrw) GCC_ATTR_REGPARM; +static void MEMCALL tlb_update(const UINT32 laddr, const UINT entry, const int ucrw); #endif +#define PAGE_SIZE 0x1000 +#define PAGE_MASK (PAGE_SIZE - 1) + UINT8 MEMCALL cpu_memory_access_la_RMW_b(UINT32 laddr, UINT32 (*func)(UINT32, void *), void *arg) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE; + const int ucrw = CPU_PAGE_WRITE_DATA|CPU_STAT_USER_MODE; UINT32 result, value; UINT32 paddr; @@ -205,12 +206,12 @@ cpu_memory_access_la_RMW_b(UINT32 laddr, UINT16 MEMCALL cpu_memory_access_la_RMW_w(UINT32 laddr, UINT32 (*func)(UINT32, void *), void *arg) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE; + const int ucrw = CPU_PAGE_WRITE_DATA|CPU_STAT_USER_MODE; UINT32 result, value; UINT32 paddr[2]; paddr[0] = paging(laddr, ucrw); - if ((laddr + 1) & 0x00000fff) { + if ((laddr + 1) & PAGE_MASK) { value = cpu_memoryread_w(paddr[0]); result = (*func)(value, arg); cpu_memorywrite_w(paddr[0], (UINT16)result); @@ -228,13 +229,13 @@ cpu_memory_access_la_RMW_w(UINT32 laddr, UINT32 MEMCALL cpu_memory_access_la_RMW_d(UINT32 laddr, UINT32 (*func)(UINT32, void *), void *arg) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE; + const int ucrw = CPU_PAGE_WRITE_DATA|CPU_STAT_USER_MODE; UINT32 result, value; UINT32 paddr[2]; UINT remain; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 4) { value = cpu_memoryread_d(paddr[0]); result = (*func)(value, arg); @@ -294,7 +295,7 @@ cpu_linear_memory_read_w(UINT32 laddr, c UINT16 value; paddr[0] = paging(laddr, ucrw); - if ((laddr + 1) & 0x00000fff) { + if ((laddr + 1) & PAGE_MASK) { return cpu_memoryread_w(paddr[0]); } else { paddr[1] = paging(laddr + 1, ucrw); @@ -312,7 +313,7 @@ cpu_linear_memory_read_d(UINT32 laddr, c UINT remain; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 4) { return cpu_memoryread_d(paddr[0]); } else { @@ -352,7 +353,7 @@ cpu_linear_memory_read_q(UINT32 laddr, c UINT remain; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 8) { return cpu_memoryread_q(paddr[0]); } else { @@ -375,7 +376,7 @@ cpu_linear_memory_read_q(UINT32 laddr, c value = cpu_memoryread(paddr[0]); value += (UINT64)cpu_memoryread_d(paddr[0] + 1) << 8; value += (UINT64)cpu_memoryread_w(paddr[1]) << 40; - value += (UINT64)cpu_memoryread(paddr[1] + 1) << 56; + value += (UINT64)cpu_memoryread(paddr[1] + 2) << 56; break; case 4: @@ -421,7 +422,7 @@ cpu_linear_memory_read_f(UINT32 laddr, c UINT i, j; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 10) { return cpu_memoryread_f(paddr[0]); } else { @@ -439,7 +440,7 @@ cpu_linear_memory_read_f(UINT32 laddr, c void MEMCALL cpu_linear_memory_write_b(UINT32 laddr, UINT8 value, const int user_mode) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode; + const int ucrw = CPU_PAGE_WRITE_DATA|user_mode; UINT32 paddr; paddr = paging(laddr, ucrw); @@ -449,11 +450,11 @@ cpu_linear_memory_write_b(UINT32 laddr, void MEMCALL cpu_linear_memory_write_w(UINT32 laddr, UINT16 value, const int user_mode) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode; + const int ucrw = CPU_PAGE_WRITE_DATA|user_mode; UINT32 paddr[2]; paddr[0] = paging(laddr, ucrw); - if ((laddr + 1) & 0x00000fff) { + if ((laddr + 1) & PAGE_MASK) { cpu_memorywrite_w(paddr[0], value); } else { paddr[1] = paging(laddr + 1, ucrw); @@ -465,12 +466,12 @@ cpu_linear_memory_write_w(UINT32 laddr, void MEMCALL cpu_linear_memory_write_d(UINT32 laddr, UINT32 value, const int user_mode) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode; + const int ucrw = CPU_PAGE_WRITE_DATA|user_mode; UINT32 paddr[2]; UINT remain; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 4) { cpu_memorywrite_d(paddr[0], value); } else { @@ -499,12 +500,12 @@ cpu_linear_memory_write_d(UINT32 laddr, void MEMCALL cpu_linear_memory_write_q(UINT32 laddr, UINT64 value, const int user_mode) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode; + const int ucrw = CPU_PAGE_WRITE_DATA|user_mode; UINT32 paddr[2]; UINT remain; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 8) { cpu_memorywrite_q(paddr[0], value); } else { @@ -518,6 +519,7 @@ cpu_linear_memory_write_q(UINT32 laddr, break; case 6: + cpu_memorywrite_w(paddr[0], (UINT16)value); cpu_memorywrite_d(paddr[0] + 2, (UINT32)(value >> 16)); cpu_memorywrite_w(paddr[1], (UINT16)(value >> 48)); break; @@ -560,13 +562,13 @@ cpu_linear_memory_write_q(UINT32 laddr, void MEMCALL cpu_linear_memory_write_f(UINT32 laddr, const REG80 *value, const int user_mode) { - const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode; + const int ucrw = CPU_PAGE_WRITE_DATA|user_mode; UINT32 paddr[2]; UINT remain; UINT i, j; paddr[0] = paging(laddr, ucrw); - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); if (remain >= 10) { cpu_memorywrite_f(paddr[0], value); } else { @@ -582,7 +584,7 @@ cpu_linear_memory_write_f(UINT32 laddr, void MEMCALL -cpu_memory_access_la_region(UINT32 laddr, UINT length, const int ucrw, BYTE *data) +cpu_memory_access_la_region(UINT32 laddr, UINT length, const int ucrw, UINT8 *data) { UINT32 paddr; UINT remain; /* page remain */ @@ -591,7 +593,7 @@ cpu_memory_access_la_region(UINT32 laddr if (length == 0) return; - remain = 0x1000 - (laddr & 0x00000fff); + remain = PAGE_SIZE - (laddr & PAGE_MASK); for (;;) { if (!CPU_STAT_PAGING) { paddr = laddr; @@ -615,35 +617,16 @@ cpu_memory_access_la_region(UINT32 laddr remain -= r; if (remain <= 0) { /* next page */ - remain += 0x1000; + remain += PAGE_SIZE; } } } -void MEMCALL -paging_check(UINT32 laddr, UINT length, const int ucrw) +UINT32 MEMCALL +laddr2paddr(const UINT32 laddr, const int ucrw) { - UINT32 paddr; - UINT remain; /* page remain */ - UINT r; - - remain = 0x1000 - (laddr & 0x00000fff); - for (;;) { - paddr = paging(laddr, ucrw); - - r = (remain > length) ? length : remain; - - length -= r; - if (length == 0) - break; - laddr += r; - remain -= r; - if (remain <= 0) { - /* next page */ - remain += 0x1000; - } - } + return paging(laddr, ucrw); } static UINT32 MEMCALL @@ -661,7 +644,7 @@ paging(const UINT32 laddr, const int ucr ep = tlb_lookup(laddr, ucrw); if (ep != NULL) - return ep->paddr + (laddr & 0xfff); + return ep->paddr + (laddr & PAGE_MASK); #endif pde_addr = CPU_STAT_PDE_BASE + ((laddr >> 20) & 0xffc); @@ -693,7 +676,7 @@ paging(const UINT32 laddr, const int ucr } /* make physical address */ - paddr = (pte & CPU_PTE_BASEADDR_MASK) + (laddr & 0x00000fff); + paddr = (pte & CPU_PTE_BASEADDR_MASK) + (laddr & PAGE_MASK); bit = ucrw & (CPU_PAGE_WRITE|CPU_PAGE_USER_MODE); bit |= (pde & pte & (CPU_PTE_WRITABLE|CPU_PTE_USER_MODE)); @@ -758,7 +741,7 @@ do { \ #if (CPU_FEATURES & CPU_FEATURE_PGE) == CPU_FEATURE_PGE #define TLB_IS_GLOBAL(ep) ((ep)->tag & TLB_ENTRY_TAG_GLOBAL) #else -#define TLB_IS_GLOBAL(ep) FALSE +#define TLB_IS_GLOBAL(ep) 0 #endif #define TLB_SET_TAG_FLAGS(ep, entry, bit) \