1 files changed, 79 insertions, 0 deletions
diff --git a/include/hw/intc/loongson_ipi_common.h b/include/hw/intc/loongson_ipi_common.h
new file mode 100644
index 0000000..e58ce2a
--- /dev/null
+++ b/include/hw/intc/loongson_ipi_common.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Loongson ipi interrupt header files
+ *
+ * Copyright (C) 2021 Loongson Technology Corporation Limited
+ */
+
+#ifndef HW_LOONGSON_IPI_COMMON_H
+#define HW_LOONGSON_IPI_COMMON_H
+
+#include "qom/object.h"
+#include "hw/sysbus.h"
+#include "exec/memattrs.h"
+
+#define IPI_MBX_NUM           4
+
+#define TYPE_LOONGSON_IPI_COMMON "loongson_ipi_common"
+OBJECT_DECLARE_TYPE(LoongsonIPICommonState,
+                    LoongsonIPICommonClass, LOONGSON_IPI_COMMON)
+
+typedef struct IPICore {
+    LoongsonIPICommonState *ipi;
+    uint32_t status;
+    uint32_t en;
+    uint32_t set;
+    uint32_t clear;
+    /* 64bit buf divide into 2 32-bit buf */
+    uint32_t buf[IPI_MBX_NUM * 2];
+    qemu_irq irq;
+    uint64_t arch_id;
+    CPUState *cpu;
+} IPICore;
+
+struct LoongsonIPICommonState {
+    SysBusDevice parent_obj;
+
+    MemoryRegion ipi_iocsr_mem;
+    MemoryRegion ipi64_iocsr_mem;
+    uint32_t num_cpu;
+    IPICore *cpu;
+};
+
+struct LoongsonIPICommonClass {
+    SysBusDeviceClass parent_class;
+
+    DeviceRealize parent_realize;
+    DeviceUnrealize parent_unrealize;
+    AddressSpace *(*get_iocsr_as)(CPUState *cpu);
+    int (*cpu_by_arch_id)(LoongsonIPICommonState *lics, int64_t id,
+                          int *index, CPUState **pcs);
+    int (*pre_save)(void *opaque);
+    int (*post_load)(void *opaque, int version_id);
+};
+
+MemTxResult loongson_ipi_core_readl(void *opaque, hwaddr addr, uint64_t *data,
+                                    unsigned size, MemTxAttrs attrs);
+MemTxResult loongson_ipi_core_writel(void *opaque, hwaddr addr, uint64_t val,
+                                     unsigned size, MemTxAttrs attrs);
+
+/* Mainy used by iocsr read and write */
+#define SMP_IPI_MAILBOX         0x1000ULL
+
+#define CORE_STATUS_OFF         0x0
+#define CORE_EN_OFF             0x4
+#define CORE_SET_OFF            0x8
+#define CORE_CLEAR_OFF          0xc
+#define CORE_BUF_20             0x20
+#define CORE_BUF_28             0x28
+#define CORE_BUF_30             0x30
+#define CORE_BUF_38             0x38
+#define IOCSR_IPI_SEND          0x40
+#define IOCSR_MAIL_SEND         0x48
+#define IOCSR_ANY_SEND          0x158
+
+#define MAIL_SEND_ADDR          (SMP_IPI_MAILBOX + IOCSR_MAIL_SEND)
+#define MAIL_SEND_OFFSET        0
+#define ANY_SEND_OFFSET         (IOCSR_ANY_SEND - IOCSR_MAIL_SEND)
+
+#endif