1 files changed, 66 insertions, 0 deletions
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
new file mode 100644
index 00000000..4ebe157b
--- /dev/null
+++ b/arch/x86/include/asm/microcode.h
@@ -0,0 +1,66 @@
+#ifndef _ASM_X86_MICROCODE_H
+#define _ASM_X86_MICROCODE_H
+
+struct cpu_signature {
+	unsigned int sig;
+	unsigned int pf;
+	unsigned int rev;
+};
+
+struct device;
+
+enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND };
+
+struct microcode_ops {
+	enum ucode_state (*request_microcode_user) (int cpu,
+				const void __user *buf, size_t size);
+
+	enum ucode_state (*request_microcode_fw) (int cpu,
+				struct device *device);
+
+	void (*microcode_fini_cpu) (int cpu);
+
+	/*
+	 * The generic 'microcode_core' part guarantees that
+	 * the callbacks below run on a target cpu when they
+	 * are being called.
+	 * See also the "Synchronization" section in microcode_core.c.
+	 */
+	int (*apply_microcode) (int cpu);
+	int (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
+};
+
+struct ucode_cpu_info {
+	struct cpu_signature	cpu_sig;
+	int			valid;
+	void			*mc;
+};
+extern struct ucode_cpu_info ucode_cpu_info[];
+
+#ifdef CONFIG_MICROCODE_INTEL
+extern struct microcode_ops * __init init_intel_microcode(void);
+#else
+static inline struct microcode_ops * __init init_intel_microcode(void)
+{
+	return NULL;
+}
+#endif /* CONFIG_MICROCODE_INTEL */
+
+#ifdef CONFIG_MICROCODE_AMD
+extern struct microcode_ops * __init init_amd_microcode(void);
+extern void __exit exit_amd_microcode(void);
+
+static inline void get_ucode_data(void *to, const u8 *from, size_t n)
+{
+	memcpy(to, from, n);
+}
+
+#else
+static inline struct microcode_ops * __init init_amd_microcode(void)
+{
+	return NULL;
+}
+static inline void __exit exit_amd_microcode(void) {}
+#endif
+
+#endif /* _ASM_X86_MICROCODE_H */