Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 45 insertions, 0 deletions

diff --git a/roms/skiboot/libflash/ipmi-hiomap.h b/roms/skiboot/libflash/ipmi-hiomap.h
new file mode 100644
index 000000000..2046a2763
--- /dev/null
+++ b/roms/skiboot/libflash/ipmi-hiomap.h
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+/* Copyright 2018-2019 IBM Corp. */
+
+#ifndef __LIBFLASH_IPMI_HIOMAP_H
+#define __LIBFLASH_IPMI_HIOMAP_H
+
+#include <lock.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "blocklevel.h"
+
+enum lpc_window_state { closed_window, read_window, write_window };
+
+struct lpc_window {
+	uint32_t lpc_addr; /* Offset into LPC space */
+	uint32_t cur_pos;  /* Current position of the window in the flash */
+	uint32_t size;     /* Size of the window into the flash */
+};
+
+struct ipmi_hiomap {
+	/* Members protected by the blocklevel lock */
+	uint8_t seq;
+	uint8_t version;
+	uint8_t block_size_shift;
+	uint16_t timeout;
+	struct blocklevel_device bl;
+	uint32_t total_size;
+	uint32_t erase_granule;
+	struct lpc_window current;
+
+	/*
+	 * update, bmc_state and window_state can be accessed by both calls
+	 * through read/write/erase functions and the IPMI SEL handler. All
+	 * three variables are protected by lock to avoid conflict.
+	 */
+	struct lock lock;
+	uint8_t bmc_state;
+	enum lpc_window_state window_state;
+};
+
+int ipmi_hiomap_init(struct blocklevel_device **bl);
+bool ipmi_hiomap_exit(struct blocklevel_device *bl);
+
+#endif /* __LIBFLASH_IPMI_HIOMAP_H */