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メモリのクリアタイミングの変更(最適化)

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git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/TwlIPL/trunk@553 b08762b0-b915-fc4b-9d8c-17b2551a87ff
This commit is contained in:
yutaka 2008-01-31 05:37:43 +00:00
parent 3b8494b315
commit 56e4ee24da
2 changed files with 3 additions and 2 deletions
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2
build/libraries/fs/ARM9/src/fs_loader.c
View File

@ -194,13 +194,11 @@ BOOL FS_LoadBuffer( u8* dest, u32 size, SVCSHA1Context *ctx )
u32 u = unit - done < HASH_UNIT ? unit - done : HASH_UNIT;
SVC_SHA1Update( ctx, s, u );
MI_CpuCopyFast( s, d, u );
MI_CpuClearFast( s, u ); // OS_Bootでのクリアと比較する
}
}
else
{
MI_CpuCopyFast( src, dest, unit );
MI_CpuClearFast( src, unit ); // OS_Bootでのクリアと比較する
}
DC_FlushRange( src, unit );
size -= unit;

3
build/libraries/os/common/os_boot.c
View File

@ -65,6 +65,9 @@ void OS_BootWithRomHeaderFromFIRM( ROM_Header* rom_header )
mem_list[i++] = (u32)OSi_GetFromFirmAddr()->rsa_pubkey[4];
mem_list[i++] = ACS_PUBKEY_LEN;
#else // SDK_ARM7
/* FS_Loader用バッファのクリア */
mem_list[i++] = HW_FIRM_LOAD_BUFFER_BASE;
mem_list[i++] = HW_FIRM_LOAD_BUFFER_UNIT_SIZE * HW_FIRM_LOAD_BUFFER_UNIT_NUMS;
{ /* REBOOT_ExecuteのCODEとSTACKの隙間をクリア */
u32 stack_bottom = (u32)stack_top - OS_BOOT_STACK_SIZE_MIN - sizeof(mem_list);
u32 code_buf_end = OS_BOOT_CODE_BUF + OS_BOOT_CODE_SIZE;