x86, efi: Set runtime_version to the EFI spec revision
[linux/fpc-iii.git] / arch / m68k / platform / coldfire / cache.c
blob71beeaf0c5c4663210d8f0dab0a7b4c449187a3b
1 /***************************************************************************/
3 /*
4 * cache.c -- general ColdFire Cache maintenance code
6 * Copyright (C) 2010, Greg Ungerer (gerg@snapgear.com)
7 */
9 /***************************************************************************/
11 #include <linux/kernel.h>
12 #include <asm/coldfire.h>
13 #include <asm/mcfsim.h>
15 /***************************************************************************/
16 #ifdef CACHE_PUSH
17 /***************************************************************************/
20 * Use cpushl to push all dirty cache lines back to memory.
21 * Older versions of GAS don't seem to know how to generate the
22 * ColdFire cpushl instruction... Oh well, bit stuff it for now.
25 void mcf_cache_push(void)
27 __asm__ __volatile__ (
28 "clrl %%d0\n\t"
29 "1:\n\t"
30 "movel %%d0,%%a0\n\t"
31 "2:\n\t"
32 ".word 0xf468\n\t"
33 "addl %0,%%a0\n\t"
34 "cmpl %1,%%a0\n\t"
35 "blt 2b\n\t"
36 "addql #1,%%d0\n\t"
37 "cmpil %2,%%d0\n\t"
38 "bne 1b\n\t"
39 : /* No output */
40 : "i" (CACHE_LINE_SIZE),
41 "i" (DCACHE_SIZE / CACHE_WAYS),
42 "i" (CACHE_WAYS)
43 : "d0", "a0" );
46 /***************************************************************************/
47 #endif /* CACHE_PUSH */
48 /***************************************************************************/