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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/mips/loongson64/loongson-3/smp.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/loongson64/loongson-3/smp.h')
| -rw-r--r-- | arch/mips/loongson64/loongson-3/smp.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/mips/loongson64/loongson-3/smp.h b/arch/mips/loongson64/loongson-3/smp.h new file mode 100644 index 000000000..957bde81e --- /dev/null +++ b/arch/mips/loongson64/loongson-3/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 |