{
struct page *page = pte_page(pte);
- if (VALID_PAGE(page) && page_mapping(page) &&
+ if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
test_bit(PG_dcache_dirty, &page->flags)) {
flush_kernel_dcache_page(page_address(page));
{
seq_printf(m, "I-cache\t\t: %ld KB\n",
cache_info.ic_size/1024 );
- seq_printf(m, "D-cache\t\t: %ld KB (%s)%s\n",
+ seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %d-way associative)\n",
cache_info.dc_size/1024,
(cache_info.dc_conf.cc_wt ? "WT":"WB"),
- (cache_info.dc_conf.cc_sh ? " - shared I/D":"")
+ (cache_info.dc_conf.cc_sh ? ", shared I/D":""),
+ (cache_info.dc_conf.cc_assoc)
);
seq_printf(m, "ITLB entries\t: %ld\n" "DTLB entries\t: %ld%s\n",
panic("parisc_cache_init: pdc_cache_info failed");
#if 0
- printk(KERN_DEBUG "ic_size %lx dc_size %lx it_size %lx pdc_cache_info %d*long pdc_cache_cf %d\n",
- cache_info.ic_size,
- cache_info.dc_size,
- cache_info.it_size,
- sizeof (struct pdc_cache_info) / sizeof (long),
- sizeof (struct pdc_cache_cf)
- );
-
- printk(KERN_DEBUG "dc base %x dc stride %x dc count %x dc loop %d\n",
- cache_info.dc_base,
- cache_info.dc_stride,
- cache_info.dc_count,
- cache_info.dc_loop);
-
- printk(KERN_DEBUG "dc conf: alias %d block %d line %d wt %d sh %d cst %d assoc %d\n",
- cache_info.dc_conf.cc_alias,
- cache_info.dc_conf.cc_block,
- cache_info.dc_conf.cc_line,
- cache_info.dc_conf.cc_wt,
- cache_info.dc_conf.cc_sh,
- cache_info.dc_conf.cc_cst,
- cache_info.dc_conf.cc_assoc);
-
- printk(KERN_DEBUG "ic conf: alias %d block %d line %d wt %d sh %d cst %d assoc %d\n",
- cache_info.ic_conf.cc_alias,
- cache_info.ic_conf.cc_block,
- cache_info.ic_conf.cc_line,
- cache_info.ic_conf.cc_wt,
- cache_info.ic_conf.cc_sh,
- cache_info.ic_conf.cc_cst,
- cache_info.ic_conf.cc_assoc);
-
- printk(KERN_DEBUG "dt conf: sh %d page %d cst %d aid %d pad1 %d \n",
- cache_info.dt_conf.tc_sh,
- cache_info.dt_conf.tc_page,
- cache_info.dt_conf.tc_cst,
- cache_info.dt_conf.tc_aid,
- cache_info.dt_conf.tc_pad1);
-
- printk(KERN_DEBUG "it conf: sh %d page %d cst %d aid %d pad1 %d \n",
- cache_info.it_conf.tc_sh,
- cache_info.it_conf.tc_page,
- cache_info.it_conf.tc_cst,
- cache_info.it_conf.tc_aid,
- cache_info.it_conf.tc_pad1);
+ printk("ic_size %lx dc_size %lx it_size %lx\n",
+ cache_info.ic_size,
+ cache_info.dc_size,
+ cache_info.it_size);
+
+ printk("DC base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
+ cache_info.dc_base,
+ cache_info.dc_stride,
+ cache_info.dc_count,
+ cache_info.dc_loop);
+
+ printk("dc_conf = 0x%lx alias %d blk %d line %d shift %d\n",
+ *(unsigned long *) (&cache_info.dc_conf),
+ cache_info.dc_conf.cc_alias,
+ cache_info.dc_conf.cc_block,
+ cache_info.dc_conf.cc_line,
+ cache_info.dc_conf.cc_shift);
+ printk(" wt %d sh %d cst %d assoc %d\n",
+ cache_info.dc_conf.cc_wt,
+ cache_info.dc_conf.cc_sh,
+ cache_info.dc_conf.cc_cst,
+ cache_info.dc_conf.cc_assoc);
+
+ printk("IC base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
+ cache_info.ic_base,
+ cache_info.ic_stride,
+ cache_info.ic_count,
+ cache_info.ic_loop);
+
+ printk("ic_conf = 0x%lx alias %d blk %d line %d shift %d\n",
+ *(unsigned long *) (&cache_info.ic_conf),
+ cache_info.ic_conf.cc_alias,
+ cache_info.ic_conf.cc_block,
+ cache_info.ic_conf.cc_line,
+ cache_info.ic_conf.cc_shift);
+ printk(" wt %d sh %d cst %d assoc %d\n",
+ cache_info.ic_conf.cc_wt,
+ cache_info.ic_conf.cc_sh,
+ cache_info.ic_conf.cc_cst,
+ cache_info.ic_conf.cc_assoc);
+
+ printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+ cache_info.dt_conf.tc_sh,
+ cache_info.dt_conf.tc_page,
+ cache_info.dt_conf.tc_cst,
+ cache_info.dt_conf.tc_aid,
+ cache_info.dt_conf.tc_pad1);
+
+ printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+ cache_info.it_conf.tc_sh,
+ cache_info.it_conf.tc_page,
+ cache_info.it_conf.tc_cst,
+ cache_info.it_conf.tc_aid,
+ cache_info.it_conf.tc_pad1);
#endif
split_tlb = 0;
split_tlb = 1;
}
- dcache_stride = (1 << (cache_info.dc_conf.cc_block + 3)) *
- cache_info.dc_conf.cc_line;
- icache_stride = (1 << (cache_info.ic_conf.cc_block + 3)) *
- cache_info.ic_conf.cc_line;
+ /* "New and Improved" version from Jim Hull
+ * (1 << (cc_block-1)) * (cc_line << (4 + cnf.cc_shift))
+ */
+#define CAFL_STRIDE(cnf) (cnf.cc_line << (3 + cnf.cc_block + cnf.cc_shift))
+ dcache_stride = CAFL_STRIDE(cache_info.dc_conf);
+ icache_stride = CAFL_STRIDE(cache_info.ic_conf);
+#undef CAFL_STRIDE
+
#ifndef CONFIG_PA20
if (pdc_btlb_info(&btlb_info) < 0) {
memset(&btlb_info, 0, sizeof btlb_info);
if ((boot_cpu_data.pdc.capabilities & PDC_MODEL_NVA_MASK) ==
PDC_MODEL_NVA_UNSUPPORTED) {
- printk(KERN_WARNING "Only equivalent aliasing supported\n");
-#ifndef CONFIG_SMP
+ printk(KERN_WARNING "parisc_cache_init: Only equivalent aliasing supported!\n");
+#if 0
panic("SMP kernel required to avoid non-equivalent aliasing");
#endif
}
disable_sr_hashing_asm(srhash_type);
}
-void __flush_dcache_page(struct page *page)
+void flush_dcache_page(struct page *page)
{
struct address_space *mapping = page_mapping(page);
struct vm_area_struct *mpnt = NULL;
unsigned long offset;
unsigned long addr;
pgoff_t pgoff;
+ pte_t *pte;
+ unsigned long pfn = page_to_pfn(page);
+
+
+ if (mapping && !mapping_mapped(mapping)) {
+ set_bit(PG_dcache_dirty, &page->flags);
+ return;
+ }
flush_kernel_dcache_page(page_address(page));
* isn't there, there's no point exciting the
* nadtlb handler into a nullification frenzy */
- if (!translation_exists(mpnt, addr))
+
+ if(!(pte = translation_exists(mpnt, addr)))
continue;
+ /* make sure we really have this page: the private
+ * mappings may cover this area but have COW'd this
+ * particular page */
+ if(pte_pfn(*pte) != pfn)
+ continue;
+
__flush_cache_page(mpnt, addr);
break;
}
flush_dcache_mmap_unlock(mapping);
}
-EXPORT_SYMBOL(__flush_dcache_page);
+EXPORT_SYMBOL(flush_dcache_page);
/* Defined in arch/parisc/kernel/pacache.S */
EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
git://git.onelab.eu / linux-2.6.git / blobdiff