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[MIPS] local_r4k_flush_cache_page fix

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If dcache_size != icache_size or dcache_size != scache_size, or
set-associative cache, icache/scache does not flushed properly.  Make
blast_?cache_page_indexed() masks its index value correctly.  Also,
use physical address for physically indexed pcache/scache.
    
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto
2006-03-13 18:23:03 +09:00
committed by Ralf Baechle
parent a3c4946db4
commit de62893bc0
5 changed files with 15 additions and 6 deletions
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13
arch/mips/mm/c-r4k.c
View File

@ -375,6 +375,7 @@ static void r4k_flush_cache_mm(struct mm_struct *mm)
struct flush_cache_page_args {
struct vm_area_struct *vma;
unsigned long addr;
unsigned long pfn;
};
static inline void local_r4k_flush_cache_page(void *args)
@ -382,6 +383,7 @@ static inline void local_r4k_flush_cache_page(void *args)
struct flush_cache_page_args *fcp_args = args;
struct vm_area_struct *vma = fcp_args->vma;
unsigned long addr = fcp_args->addr;
unsigned long paddr = fcp_args->pfn << PAGE_SHIFT;
int exec = vma->vm_flags & VM_EXEC;
struct mm_struct *mm = vma->vm_mm;
pgd_t *pgdp;
@ -431,11 +433,12 @@ static inline void local_r4k_flush_cache_page(void *args)
* Do indexed flush, too much work to get the (possible) TLB refills
* to work correctly.
*/
addr = INDEX_BASE + (addr & (dcache_size - 1));
if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) {
r4k_blast_dcache_page_indexed(addr);
if (exec && !cpu_icache_snoops_remote_store)
r4k_blast_scache_page_indexed(addr);
r4k_blast_dcache_page_indexed(cpu_has_pindexed_dcache ?
paddr : addr);
if (exec && !cpu_icache_snoops_remote_store) {
r4k_blast_scache_page_indexed(paddr);
}
}
if (exec) {
if (cpu_has_vtag_icache) {
@ -455,6 +458,7 @@ static void r4k_flush_cache_page(struct vm_area_struct *vma,
args.vma = vma;
args.addr = addr;
args.pfn = pfn;
on_each_cpu(local_r4k_flush_cache_page, &args, 1, 1);
}
@ -956,6 +960,7 @@ static void __init probe_pcache(void)
switch (c->cputype) {
case CPU_20KC:
case CPU_25KF:
c->dcache.flags |= MIPS_CACHE_PINDEX;
case CPU_R10000:
case CPU_R12000:
case CPU_SB1:

1
arch/mips/mm/c-tx39.c
View File

@ -210,7 +210,6 @@ static void tx39_flush_cache_page(struct vm_area_struct *vma, unsigned long page
* Do indexed flush, too much work to get the (possible) TLB refills
* to work correctly.
*/
page = (KSEG0 + (page & (dcache_size - 1)));
if (cpu_has_dc_aliases || exec)
tx39_blast_dcache_page_indexed(page);
if (exec)