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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-28 10:08:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-28 10:08:46 -0700 |
| commit | 8ed575904373d7aaab7f15a8db2edc317a44df43 (patch) | |
| tree | 3b2e92a396a1bbec8e1fb499f25e8aed93ab5692 /arch/parisc/kernel/cache.c | |
| parent | 27d1097d39509494706eaa2620ef3b1e780a3224 (diff) | |
| parent | 210cc679faf0e1cabda9fc5d1279644f5e52aecb (diff) | |
Merge branch 'forlinus' of git://parisc-linux.org/home/kyle/git/parisc-2.6
Diffstat (limited to 'arch/parisc/kernel/cache.c')
| -rw-r--r-- | arch/parisc/kernel/cache.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index f46a07a79218..e15f09eaed12 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -27,6 +27,7 @@ #include <asm/page.h> #include <asm/pgalloc.h> #include <asm/processor.h> +#include <asm/sections.h> int split_tlb; int dcache_stride; @@ -207,6 +208,9 @@ parisc_cache_init(void) /* "New and Improved" version from Jim Hull * (1 << (cc_block-1)) * (cc_line << (4 + cnf.cc_shift)) + * The following CAFL_STRIDE is an optimized version, see + * http://lists.parisc-linux.org/pipermail/parisc-linux/2004-June/023625.html + * http://lists.parisc-linux.org/pipermail/parisc-linux/2004-June/023671.html */ #define CAFL_STRIDE(cnf) (cnf.cc_line << (3 + cnf.cc_block + cnf.cc_shift)) dcache_stride = CAFL_STRIDE(cache_info.dc_conf); @@ -339,17 +343,15 @@ int parisc_cache_flush_threshold = FLUSH_THRESHOLD; void parisc_setup_cache_timing(void) { unsigned long rangetime, alltime; - extern char _text; /* start of kernel code, defined by linker */ - extern char _end; /* end of BSS, defined by linker */ unsigned long size; alltime = mfctl(16); flush_data_cache(); alltime = mfctl(16) - alltime; - size = (unsigned long)(&_end - _text); + size = (unsigned long)(_end - _text); rangetime = mfctl(16); - flush_kernel_dcache_range((unsigned long)&_text, size); + flush_kernel_dcache_range((unsigned long)_text, size); rangetime = mfctl(16) - rangetime; printk(KERN_DEBUG "Whole cache flush %lu cycles, flushing %lu bytes %lu cycles\n", |