Initial commit: OpenHarmony-v4.0-ReleaseOpenHarmony-v4.0-Release

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 000000000..957bde81e
--- /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