diff options
| author | Olof Johansson <olof@lixom.net> | 2007-11-20 04:24:45 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-11-20 05:56:31 +0300 |
| commit | fbe481756df57673b6acbcd2e139d0d2658f2188 (patch) | |
| tree | f1981a79330e1eeaa2294516587bf338f4a6476e /arch/powerpc/kernel/vdso.c | |
| parent | 92e21e79a85924ddda00f4678d60bbd8f891a553 (diff) | |
| download | linux-fbe481756df57673b6acbcd2e139d0d2658f2188.tar.xz | |
[POWERPC] vdso: Fixes for cache block sizes
The current VDSO implementation is hardcoded to 128 byte cache blocks,
which are only used on IBM's 64-bit processors.
Convert it to get the cache block sizes out of vdso_data instead,
similar to how the ppc64 in-kernel cache flush does it.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/vdso.c')
| -rw-r--r-- | arch/powerpc/kernel/vdso.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 2322ba5cce4c..3702df7dc567 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -699,11 +699,22 @@ static int __init vdso_init(void) vdso_data->icache_size = ppc64_caches.isize; vdso_data->icache_line_size = ppc64_caches.iline_size; + /* XXXOJN: Blocks should be added to ppc64_caches and used instead */ + vdso_data->dcache_block_size = ppc64_caches.dline_size; + vdso_data->icache_block_size = ppc64_caches.iline_size; + vdso_data->dcache_log_block_size = ppc64_caches.log_dline_size; + vdso_data->icache_log_block_size = ppc64_caches.log_iline_size; + /* * Calculate the size of the 64 bits vDSO */ vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT; DBG("vdso64_kbase: %p, 0x%x pages\n", vdso64_kbase, vdso64_pages); +#else + vdso_data->dcache_block_size = L1_CACHE_BYTES; + vdso_data->dcache_log_block_size = L1_CACHE_SHIFT; + vdso_data->icache_block_size = L1_CACHE_BYTES; + vdso_data->icache_log_block_size = L1_CACHE_SHIFT; #endif /* CONFIG_PPC64 */ |