Ralf,
I've done more testing with your patch. When I use it with my non-SMP
kernel, disk access will cause a panic with a cache error message. Is this
patch only intended for SMP, or is this a legitimate problem?
Bryan
Index: include/asm-mips/mach-generic/ide.h
===================================================================
RCS file: /home/cvs/linux/include/asm-mips/mach-generic/ide.h,v
retrieving revision 1.9
diff -u -r1.9 ide.h
--- include/asm-mips/mach-generic/ide.h 19 Apr 2005 12:26:59 -0000 1.9
+++ include/asm-mips/mach-generic/ide.h 26 Aug 2005 14:04:38 -0000
@@ -19,6 +19,7 @@
#include <linux/pci.h>
#include <linux/stddef.h>
#include <asm/processor.h>
+#include <asm/cacheflush.h>
#ifndef MAX_HWIFS
# ifdef CONFIG_BLK_DEV_IDEPCI
@@ -105,12 +106,14 @@
/* MIPS port and memory-mapped I/O string operations. */
-static inline void __ide_flush_dcache_range(unsigned long addr, unsigned
long size)
+static inline void __ide_flush_dcache_range(unsigned long addr,
+ unsigned long size)
{
- if (cpu_has_dc_aliases) {
- unsigned long end = addr + size;
- for (; addr < end; addr += PAGE_SIZE)
- flush_dcache_page(virt_to_page(addr));
+ unsigned long end = addr + size;
+
+ while (addr < end) {
+ SetPageDcacheDirty(virt_to_page(addr));
+ addr += PAGE_SIZE;
}
}
