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target/m68k: consolidate physical translation offset into get_physical_address() 

Since all callers to get_physical_address() now apply the same page offset to
the translation result, move the logic into get_physical_address() itself to
avoid duplication.

Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200701201531.13828-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
master
Mark Cave-Ayland 2020-07-01 21:15:31 +01:00 committed by Laurent Vivier
parent 78318119ee
commit 852002b566
1 changed files with 6 additions and 11 deletions
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17
target/m68k/helper.c
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@ -643,7 +643,7 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical,
/* Transparent Translation Register bit */
env->mmu.mmusr = M68K_MMU_T_040 | M68K_MMU_R_040;
}
*physical = address & TARGET_PAGE_MASK;
*physical = address;
*page_size = TARGET_PAGE_SIZE;
return 0;
}
@ -771,7 +771,7 @@ static int get_physical_address(CPUM68KState *env, hwaddr *physical,
}
*page_size = 1 << page_bits;
page_mask = ~(*page_size - 1);
*physical = next & page_mask;
*physical = (next & page_mask) + (address & (*page_size - 1));
if (access_type & ACCESS_PTEST) {
env->mmu.mmusr |= next & M68K_MMU_SR_MASK_040;
@ -826,8 +826,6 @@ hwaddr m68k_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
return -1;
}
addr &= TARGET_PAGE_MASK;
phys_addr += addr & (page_size - 1);
return phys_addr;
}
@ -891,10 +889,8 @@ bool m68k_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
ret = get_physical_address(&cpu->env, &physical, &prot,
address, access_type, &page_size);
if (likely(ret == 0)) {
address &= TARGET_PAGE_MASK;
physical += address & (page_size - 1);
tlb_set_page(cs, address, physical,
prot, mmu_idx, TARGET_PAGE_SIZE);
tlb_set_page(cs, address & TARGET_PAGE_MASK,
physical & TARGET_PAGE_MASK, prot, mmu_idx, page_size);
return true;
}
@ -1383,9 +1379,8 @@ void HELPER(ptest)(CPUM68KState *env, uint32_t addr, uint32_t is_read)
ret = get_physical_address(env, &physical, &prot, addr,
access_type, &page_size);
if (ret == 0) {
addr &= TARGET_PAGE_MASK;
physical += addr & (page_size - 1);
tlb_set_page(env_cpu(env), addr, physical,
tlb_set_page(env_cpu(env), addr & TARGET_PAGE_MASK,
physical & TARGET_PAGE_MASK,
prot, access_type & ACCESS_SUPER ?
MMU_KERNEL_IDX : MMU_USER_IDX, page_size);
}