hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Sync c-tx39.c with c-r4k.c. 

tx39_flush_cache_range() does nothing if !cpu_has_dc_aliases.  It should
flush d-cache and invalidate i-cache since the TX39(H2) has separate I/D
cache.
    
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 2005-09-28 20:24:58 +09:00 committed by Ralf Baechle
parent 9d58f302ca
commit 9043f7e95d
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/mips/mm/c-tx39.c
View File

@ -167,15 +167,16 @@ static void tx39_flush_cache_mm(struct mm_struct *mm)
static void tx39_flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
struct mm_struct *mm = vma->vm_mm;
int exec;
if (!cpu_has_dc_aliases)
if (!(cpu_context(smp_processor_id(), vma->vm_mm)))
return;
if (cpu_context(smp_processor_id(), mm) != 0) {
exec = vma->vm_flags & VM_EXEC;
if (cpu_has_dc_aliases || exec)
tx39_blast_dcache();
if (exec)
tx39_blast_icache();
}
}
static void tx39_flush_cache_page(struct vm_area_struct *vma, unsigned long page, unsigned long pfn)