diff options
| author | Huacai Chen <chenhc@lemote.com> | 2016-03-03 02:45:12 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-05-13 14:02:15 +0200 |
| commit | 380cd582c08831217ae693c86411902e6300ba6b (patch) | |
| tree | b7782319903d4af1ceae2e76edd8812b8392ef42 /arch/mips/include/asm/mipsregs.h | |
| parent | MIPS: Loongson: Invalidate special TLBs when needed (diff) | |
| download | linux-380cd582c08831217ae693c86411902e6300ba6b.tar.xz linux-380cd582c08831217ae693c86411902e6300ba6b.zip | |
MIPS: Loongson-3: Fast TLB refill handler
Loongson-3A R2 has pwbase/pwfield/pwsize/pwctl registers in CP0 (this
is very similar to HTW) and lwdir/lwpte/lddir/ldpte instructions which
can be used for fast TLB refill.
[ralf@linux-mips.org: Resolve conflict.]
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J . Hill <sjhill@realitydiluted.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12754/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/mipsregs.h')
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index 0d0bd161fc10..1e9d337fb077 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -1474,6 +1474,12 @@ do { \ #define read_c0_pwctl() __read_32bit_c0_register($6, 6) #define write_c0_pwctl(val) __write_32bit_c0_register($6, 6, val) +#define read_c0_pgd() __read_64bit_c0_register($9, 7) +#define write_c0_pgd(val) __write_64bit_c0_register($9, 7, val) + +#define read_c0_kpgd() __read_64bit_c0_register($31, 7) +#define write_c0_kpgd(val) __write_64bit_c0_register($31, 7, val) + /* Cavium OCTEON (cnMIPS) */ #define read_c0_cvmcount() __read_ulong_c0_register($9, 6) #define write_c0_cvmcount(val) __write_ulong_c0_register($9, 6, val) |