/* SPDX-License-Identifier: GPL-2.0 */#ifndef _ASM_X86_MICROCODE_H#define _ASM_X86_MICROCODE_H #include <asm/msr.h>#include <asm/cpuid/api.h> struct cpu_signature {	unsigned int sig;	unsigned int pf;	unsigned int rev;}; struct ucode_cpu_info {	struct cpu_signature	cpu_sig;	void			*mc;}; #ifdef CONFIG_MICROCODEvoid load_ucode_bsp(void);void load_ucode_ap(void);void microcode_bsp_resume(void);bool __init microcode_loader_disabled(void);#elsestatic inline void load_ucode_bsp(void)	{ }static inline void load_ucode_ap(void) { }static inline void microcode_bsp_resume(void) { }static inline bool __init microcode_loader_disabled(void) { return false; }#endif extern unsigned long initrd_start_early; #ifdef CONFIG_CPU_SUP_INTEL/* Intel specific microcode defines. Public for IFS */struct microcode_header_intel {	unsigned int	hdrver;	unsigned int	rev;	unsigned int	date;	unsigned int	sig;	unsigned int	cksum;	unsigned int	ldrver;	unsigned int	pf;	unsigned int	datasize;	unsigned int	totalsize;	unsigned int	metasize;	unsigned int	min_req_ver;	unsigned int	reserved;}; struct microcode_intel {	struct microcode_header_intel	hdr;	unsigned int			bits[];}; #define DEFAULT_UCODE_DATASIZE		(2000)#define MC_HEADER_SIZE			(sizeof(struct microcode_header_intel))#define MC_HEADER_TYPE_MICROCODE	1#define MC_HEADER_TYPE_IFS		2 static inline int intel_microcode_get_datasize(struct microcode_header_intel *hdr){	return hdr->datasize ? : DEFAULT_UCODE_DATASIZE;} extern u32 intel_get_platform_id(void); static inline u32 intel_get_microcode_revision(void){	u32 rev, dummy; 	native_wrmsrq(MSR_IA32_UCODE_REV, 0); 	/* As documented in the SDM: Do a CPUID 1 here */	native_cpuid_eax(1); 	/* get the current revision from MSR 0x8B */	native_rdmsr(MSR_IA32_UCODE_REV, dummy, rev); 	return rev;}#endif /* !CONFIG_CPU_SUP_INTEL */ bool microcode_nmi_handler(void);void microcode_offline_nmi_handler(void); #ifdef CONFIG_MICROCODE_LATE_LOADINGDECLARE_STATIC_KEY_FALSE(microcode_nmi_handler_enable);static __always_inline bool microcode_nmi_handler_enabled(void){	return static_branch_unlikely(&microcode_nmi_handler_enable);}#elsestatic __always_inline bool microcode_nmi_handler_enabled(void) { return false; }#endif #endif /* _ASM_X86_MICROCODE_H */