1 files changed, 73 insertions, 0 deletions
diff --git a/src/arch/riscv/include/spike_util.h b/src/arch/riscv/include/spike_util.h
new file mode 100644
index 0000000000..a9d14cccf1
--- /dev/null
+++ b/src/arch/riscv/include/spike_util.h
@@ -0,0 +1,73 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 The ChromiumOS Authors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef _SPIKE_UTIL_H
+#define _SPIKE_UTIL_H
+
+#include <stdint.h>
+//#include <string.h>
+//#include <errno.h>
+#include <arch/encoding.h>
+#include <atomic.h>
+
+#define LOG_REGBYTES 3
+#define REGBYTES (1 << LOG_REGBYTES)
+#define STORE    sd
+#define HLS_SIZE 64
+#define MENTRY_FRAME_SIZE HLS_SIZE
+
+#define TOHOST_CMD(dev, cmd, payload) \
+    (((uint64_t)(dev) << 56) | ((uint64_t)(cmd) << 48) | (uint64_t)(payload))
+
+#define FROMHOST_DEV(fromhost_value) ((uint64_t)(fromhost_value) >> 56)
+#define FROMHOST_CMD(fromhost_value) ((uint64_t)(fromhost_value) << 8 >> 56)
+#define FROMHOST_DATA(fromhost_value) ((uint64_t)(fromhost_value) << 16 >> 16)
+
+typedef struct {
+  unsigned long dev;
+  unsigned long cmd;
+  unsigned long data;
+  unsigned long sbi_private_data;
+} sbi_device_message;
+
+
+typedef struct {
+  sbi_device_message* device_request_queue_head;
+  unsigned long device_request_queue_size;
+  sbi_device_message* device_response_queue_head;
+  sbi_device_message* device_response_queue_tail;
+
+  int hart_id;
+  int ipi_pending;
+} hls_t;
+
+#define MACHINE_STACK_TOP() ({ \
+  register uintptr_t sp asm ("sp"); \
+  (void*)((sp + RISCV_PGSIZE) & -RISCV_PGSIZE); })
+
+// hart-local storage, at top of stack
+#define HLS() ((hls_t*)(MACHINE_STACK_TOP() - HLS_SIZE))
+
+#define MACHINE_STACK_SIZE RISCV_PGSIZE
+
+uintptr_t htif_interrupt(uintptr_t mcause, uintptr_t* regs);
+uintptr_t mcall_console_putchar(uint8_t ch);
+void testPrint(void);
+
+#endif