* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1999 Helge Deller (07-13-1999)
+ * Copyright (C) 1999-2006 Helge Deller <deller@gmx.de> (07-13-1999)
* Copyright (C) 1999 SuSE GmbH Nuernberg
* Copyright (C) 2000 Philipp Rumpf (prumpf@tux.org)
*
EXPORT_SYMBOL(dcache_stride);
-#if defined(CONFIG_SMP)
/* On some machines (e.g. ones with the Merced bus), there can be
* only a single PxTLB broadcast at a time; this must be guaranteed
* by software. We put a spinlock around all TLB flushes to
* ensure this.
*/
DEFINE_SPINLOCK(pa_tlb_lock);
-EXPORT_SYMBOL(pa_tlb_lock);
-#endif
struct pdc_cache_info cache_info __read_mostly;
#ifndef CONFIG_PA20
if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
test_bit(PG_dcache_dirty, &page->flags)) {
- flush_kernel_dcache_page(page_address(page));
+ flush_kernel_dcache_page(page);
clear_bit(PG_dcache_dirty, &page->flags);
- }
+ } else if (parisc_requires_coherency())
+ flush_kernel_dcache_page(page);
}
void
show_cache_info(struct seq_file *m)
{
+ char buf[32];
+
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, %d-way associative)\n",
+ if (cache_info.dc_loop == 1)
+ snprintf(buf, 32, "%lu-way associative", cache_info.dc_loop);
+ seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %s)\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_assoc)
- );
-
+ ((cache_info.dc_loop == 1) ? "direct mapped" : buf));
seq_printf(m, "ITLB entries\t: %ld\n" "DTLB entries\t: %ld%s\n",
cache_info.it_size,
cache_info.dt_size,
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",
+ printk(" wt %d sh %d cst %d hv %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);
+ cache_info.dc_conf.cc_hv);
printk("IC base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
cache_info.ic_base,
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",
+ printk(" wt %d sh %d cst %d hv %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);
+ cache_info.ic_conf.cc_hv);
printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
cache_info.dt_conf.tc_sh,
void disable_sr_hashing(void)
{
- int srhash_type;
+ int srhash_type, retval;
+ unsigned long space_bits;
switch (boot_cpu_data.cpu_type) {
case pcx: /* We shouldn't get this far. setup.c should prevent it. */
}
disable_sr_hashing_asm(srhash_type);
+
+ retval = pdc_spaceid_bits(&space_bits);
+ /* If this procedure isn't implemented, don't panic. */
+ if (retval < 0 && retval != PDC_BAD_OPTION)
+ panic("pdc_spaceid_bits call failed.\n");
+ if (space_bits != 0)
+ panic("SpaceID hashing is still on!\n");
}
void flush_dcache_page(struct page *page)
return;
}
- flush_kernel_dcache_page(page_address(page));
+ flush_kernel_dcache_page(page);
if (!mapping)
return;
/* Defined in arch/parisc/kernel/pacache.S */
EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
-EXPORT_SYMBOL(flush_kernel_dcache_page);
+EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
EXPORT_SYMBOL(flush_data_cache_local);
EXPORT_SYMBOL(flush_kernel_icache_range_asm);
if (!parisc_cache_flush_threshold)
parisc_cache_flush_threshold = FLUSH_THRESHOLD;
- printk("Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
+ printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
}
+
+extern void purge_kernel_dcache_page(unsigned long);
+extern void clear_user_page_asm(void *page, unsigned long vaddr);
+
+void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
+{
+ purge_kernel_dcache_page((unsigned long)page);
+ purge_tlb_start();
+ pdtlb_kernel(page);
+ purge_tlb_end();
+ clear_user_page_asm(page, vaddr);
+}
+EXPORT_SYMBOL(clear_user_page);
+
+void flush_kernel_dcache_page_addr(void *addr)
+{
+ flush_kernel_dcache_page_asm(addr);
+ purge_tlb_start();
+ pdtlb_kernel(addr);
+ purge_tlb_end();
+}
+EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
+
+void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
+ struct page *pg)
+{
+ /* no coherency needed (all in kmap/kunmap) */
+ copy_user_page_asm(vto, vfrom);
+ if (!parisc_requires_coherency())
+ flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(copy_user_page);
+
+#ifdef CONFIG_PA8X00
+
+void kunmap_parisc(void *addr)
+{
+ if (parisc_requires_coherency())
+ flush_kernel_dcache_page_addr(addr);
+}
+EXPORT_SYMBOL(kunmap_parisc);
+#endif