sysinfo: Add sysinfo driver and data structure for smbios

Add sysinfo driver to retrieve smbios information (Type 4 and 7).
So that the smbios library can use it for getting values from the
hardware platform instead of device tree.

Signed-off-by: Raymond Mao <[email protected]>

1 files changed, 79 insertions, 0 deletions

diff --git a/include/smbios_plat.h b/include/smbios_plat.h
new file mode 100644
index 00000000000..70089d5a2ba
--- /dev/null
+++ b/include/smbios_plat.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2024 Linaro Limited
+ * Author: Raymond Mao <[email protected]>
+ */
+#ifndef __SMBIOS_PLAT_H
+#define __SMBIOS_PLAT_H
+
+#include <smbios.h>
+
+struct cache_info {
+	union cache_config config;
+	union cache_sram_type supp_sram_type;
+	union cache_sram_type curr_sram_type;
+	u32 line_size;
+	u32 associativity;
+	u32 max_size;
+	u32 inst_size;
+	u8 cache_type;
+	u8 speed;
+	u8 err_corr_type;
+	char *socket_design;
+};
+
+struct processor_info {
+	u32 id[2];
+	u16 ext_clock;
+	u16 max_speed;
+	u16 curr_speed;
+	u16 characteristics;
+	u16 family2;
+	u16 core_count2;
+	u16 core_enabled2;
+	u16 thread_count2;
+	u16 thread_enabled;
+	u8 type;
+	u8 family;
+	u8 voltage;
+	u8 status;
+	u8 upgrade;
+	u8 core_count;
+	u8 core_enabled;
+	u8 thread_count;
+	char *socket_design;
+	char *manufacturer;
+	char *version;
+	char *sn;
+	char *asset_tag;
+	char *pn;
+};
+
+struct sysinfo_plat {
+	struct processor_info *processor;
+	struct cache_info *cache;
+	/* add other sysinfo structure here */
+};
+
+#if defined CONFIG_SYSINFO_SMBIOS
+int sysinfo_get_cache_info(u8 level, struct cache_info *cache_info);
+void sysinfo_cache_info_default(struct cache_info *ci);
+int sysinfo_get_processor_info(struct processor_info *pinfo);
+#else
+static inline int sysinfo_get_cache_info(u8 level,
+					 struct cache_info *cache_info)
+{
+	return -ENOSYS;
+}
+
+static inline void sysinfo_cache_info_default(struct cache_info *ci)
+{
+}
+
+static inline int sysinfo_get_processor_info(struct processor_info *pinfo)
+{
+	return -ENOSYS;
+}
+#endif
+
+#endif	/* __SMBIOS_PLAT_H */