diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/lib/cache.S | |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/frv/lib/cache.S')
| -rw-r--r-- | arch/frv/lib/cache.S | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/frv/lib/cache.S b/arch/frv/lib/cache.S new file mode 100644 index 00000000000..0e10ad8dc46 --- /dev/null +++ b/arch/frv/lib/cache.S @@ -0,0 +1,98 @@ +/* cache.S: cache managment routines + * + * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <asm/spr-regs.h> +#include <asm/cache.h> + + .text + .p2align 4 + +############################################################################### +# +# Write back a range of dcache +# - void frv_dcache_writeback(unsigned long start [GR8], unsigned long size [GR9]) +# +############################################################################### + .globl frv_dcache_writeback + .type frv_dcache_writeback,@function +frv_dcache_writeback: + andi gr8,~(L1_CACHE_BYTES-1),gr8 + +2: dcf @(gr8,gr0) + addi gr8,#L1_CACHE_BYTES,gr8 + cmp gr9,gr8,icc0 + bhi icc0,#2,2b + + membar + bralr + .size frv_dcache_writeback, .-frv_dcache_writeback + +############################################################################## +# +# Invalidate a range of dcache and icache +# - void frv_cache_invalidate(unsigned long start [GR8], unsigned long end [GR9]); +# +############################################################################### + .globl frv_cache_invalidate + .type frv_cache_invalidate,@function +frv_cache_invalidate: + andi gr8,~(L1_CACHE_BYTES-1),gr8 + +2: dci @(gr8,gr0) + ici @(gr8,gr0) + addi gr8,#L1_CACHE_BYTES,gr8 + cmp gr9,gr8,icc0 + bhi icc0,#2,2b + + membar + bralr + .size frv_cache_invalidate, .-frv_cache_invalidate + +############################################################################## +# +# Invalidate a range of icache +# - void frv_icache_invalidate(unsigned long start [GR8], unsigned long end [GR9]); +# +############################################################################### + .globl frv_icache_invalidate + .type frv_icache_invalidate,@function +frv_icache_invalidate: + andi gr8,~(L1_CACHE_BYTES-1),gr8 + +2: ici @(gr8,gr0) + addi gr8,#L1_CACHE_BYTES,gr8 + cmp gr9,gr8,icc0 + bhi icc0,#2,2b + + membar + bralr + .size frv_icache_invalidate, .-frv_icache_invalidate + +############################################################################### +# +# Write back and invalidate a range of dcache and icache +# - void frv_cache_wback_inv(unsigned long start [GR8], unsigned long end [GR9]) +# +############################################################################### + .globl frv_cache_wback_inv + .type frv_cache_wback_inv,@function +frv_cache_wback_inv: + andi gr8,~(L1_CACHE_BYTES-1),gr8 + +2: dcf @(gr8,gr0) + ici @(gr8,gr0) + addi gr8,#L1_CACHE_BYTES,gr8 + cmp gr9,gr8,icc0 + bhi icc0,#2,2b + + membar + bralr + .size frv_cache_wback_inv, .-frv_cache_wback_inv |