Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
new file mode 100644
index 000000000..5c524d4f7
--- /dev/null
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MICROCODE_AMD_H
+#define _ASM_X86_MICROCODE_AMD_H
+
+#include <asm/microcode.h>
+
+#define UCODE_MAGIC			0x00414d44
+#define UCODE_EQUIV_CPU_TABLE_TYPE	0x00000000
+#define UCODE_UCODE_TYPE		0x00000001
+
+#define SECTION_HDR_SIZE		8
+#define CONTAINER_HDR_SZ		12
+
+struct equiv_cpu_entry {
+	u32	installed_cpu;
+	u32	fixed_errata_mask;
+	u32	fixed_errata_compare;
+	u16	equiv_cpu;
+	u16	res;
+} __attribute__((packed));
+
+struct microcode_header_amd {
+	u32	data_code;
+	u32	patch_id;
+	u16	mc_patch_data_id;
+	u8	mc_patch_data_len;
+	u8	init_flag;
+	u32	mc_patch_data_checksum;
+	u32	nb_dev_id;
+	u32	sb_dev_id;
+	u16	processor_rev_id;
+	u8	nb_rev_id;
+	u8	sb_rev_id;
+	u8	bios_api_rev;
+	u8	reserved1[3];
+	u32	match_reg[8];
+} __attribute__((packed));
+
+struct microcode_amd {
+	struct microcode_header_amd	hdr;
+	unsigned int			mpb[0];
+};
+
+#define PATCH_MAX_SIZE (3 * PAGE_SIZE)
+
+#ifdef CONFIG_MICROCODE_AMD
+extern void __init load_ucode_amd_bsp(unsigned int family);
+extern void load_ucode_amd_ap(unsigned int family);
+extern int __init save_microcode_in_initrd_amd(unsigned int family);
+void reload_ucode_amd(void);
+#else
+static inline void __init load_ucode_amd_bsp(unsigned int family) {}
+static inline void load_ucode_amd_ap(unsigned int family) {}
+static inline int __init
+save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; }
+void reload_ucode_amd(void) {}
+#endif
+#endif /* _ASM_X86_MICROCODE_AMD_H */