From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- arch/mips/loongson64/loongson-3/smp.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 arch/mips/loongson64/loongson-3/smp.h (limited to 'arch/mips/loongson64/loongson-3/smp.h') 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 -- cgit v1.2.3