diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2019-10-20 23:01:36 +0800 |
|---|---|---|
| committer | Paul Burton <paulburton@kernel.org> | 2019-11-01 14:31:28 -0700 |
| commit | 6fbde6b492dfc761ad60a68fb2cb32b1eb05b786 (patch) | |
| tree | 34036144cad92b8209ca0e35e79b48c32b797271 /arch/mips/loongson64/smp.h | |
| parent | 1bdb7b76705a38936e9875950587ea91c9ec0a98 (diff) | |
MIPS: Loongson64: Move files to the top-level directory
Current Loongson-3 code can share among all Loongson64 processors.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: chenhc@lemote.com
Cc: paul.burton@mips.com
Diffstat (limited to 'arch/mips/loongson64/smp.h')
| -rw-r--r-- | arch/mips/loongson64/smp.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/mips/loongson64/smp.h b/arch/mips/loongson64/smp.h new file mode 100644 index 000000000000..957bde81e0e4 --- /dev/null +++ b/arch/mips/loongson64/smp.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LOONGSON_SMP_H_ +#define __LOONGSON_SMP_H_ + +/* for Loongson-3 smp support */ +extern unsigned long long smp_group[4]; + +/* 4 groups(nodes) in maximum in numa case */ +#define SMP_CORE_GROUP0_BASE (smp_group[0]) +#define SMP_CORE_GROUP1_BASE (smp_group[1]) +#define SMP_CORE_GROUP2_BASE (smp_group[2]) +#define SMP_CORE_GROUP3_BASE (smp_group[3]) + +/* 4 cores in each group(node) */ +#define SMP_CORE0_OFFSET 0x000 +#define SMP_CORE1_OFFSET 0x100 +#define SMP_CORE2_OFFSET 0x200 +#define SMP_CORE3_OFFSET 0x300 + +/* ipi registers offsets */ +#define STATUS0 0x00 +#define EN0 0x04 +#define SET0 0x08 +#define CLEAR0 0x0c +#define STATUS1 0x10 +#define MASK1 0x14 +#define SET1 0x18 +#define CLEAR1 0x1c +#define BUF 0x20 + +#endif |