lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

No barrier needed on au1x.

Browse Source 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Pete Popov
2005-02-28 05:15:40 +00:00
committed by Ralf Baechle
parent 13d1d73ea5
commit d437441ef5
1 changed files with 0 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/mips/pci/ops-au1000.c
View File

@@ -50,11 +50,6 @@
int (*board_pci_idsel)(unsigned int devsel, int assert); int (*board_pci_idsel)(unsigned int devsel, int assert);
/* CP0 hazard avoidance. */
#define BARRIER __asm__ __volatile__(".set noreorder\n\t" \
"nop; nop; nop; nop;\t" \
".set reorder\n\t")
void mod_wired_entry(int entry, unsigned long entrylo0, void mod_wired_entry(int entry, unsigned long entrylo0,
unsigned long entrylo1, unsigned long entryhi, unsigned long entrylo1, unsigned long entryhi,
unsigned long pagemask) unsigned long pagemask)
@@ -66,16 +61,12 @@ void mod_wired_entry(int entry, unsigned long entrylo0,
old_ctx = read_c0_entryhi() & 0xff; old_ctx = read_c0_entryhi() & 0xff;
old_pagemask = read_c0_pagemask(); old_pagemask = read_c0_pagemask();
write_c0_index(entry); write_c0_index(entry);
BARRIER;
write_c0_pagemask(pagemask); write_c0_pagemask(pagemask);
write_c0_entryhi(entryhi); write_c0_entryhi(entryhi);
write_c0_entrylo0(entrylo0); write_c0_entrylo0(entrylo0);
write_c0_entrylo1(entrylo1); write_c0_entrylo1(entrylo1);
BARRIER;
tlb_write_indexed(); tlb_write_indexed();
BARRIER;
write_c0_entryhi(old_ctx); write_c0_entryhi(old_ctx);
BARRIER;
write_c0_pagemask(old_pagemask); write_c0_pagemask(old_pagemask);
} }