[mirror_ubuntu-bionic-kernel.git] / arch / x86 / include / asm / microcode_amd.h

#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];
};

static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
				unsigned int sig)
{
	int i = 0;

	if (!equiv_cpu_table)
		return 0;

	while (equiv_cpu_table[i].installed_cpu != 0) {
		if (sig == equiv_cpu_table[i].installed_cpu)
			return equiv_cpu_table[i].equiv_cpu;

		i++;
	}
	return 0;
}

extern int __apply_microcode_amd(struct microcode_amd *mc_amd);
extern int apply_microcode_amd(int cpu);
extern enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size);

#ifdef CONFIG_MICROCODE_AMD_EARLY
#ifdef CONFIG_X86_32
#define MPB_MAX_SIZE PAGE_SIZE
extern u8 amd_bsp_mpb[MPB_MAX_SIZE];
#endif
extern void __init load_ucode_amd_bsp(void);
extern void load_ucode_amd_ap(void);
extern int __init save_microcode_in_initrd_amd(void);
#else
static inline void __init load_ucode_amd_bsp(void) {}
static inline void load_ucode_amd_ap(void) {}
static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; }
#endif

#endif /* _ASM_X86_MICROCODE_AMD_H */
Commit	Line	Data
a76096a6 JS	1	#ifndef _ASM_X86_MICROCODE_AMD_H
	2	#define _ASM_X86_MICROCODE_AMD_H
	3
	4	#include <asm/microcode.h>
	5
	6	#define UCODE_MAGIC 0x00414d44
	7	#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
	8	#define UCODE_UCODE_TYPE 0x00000001
	9
	10	#define SECTION_HDR_SIZE 8
	11	#define CONTAINER_HDR_SZ 12
	12
	13	struct equiv_cpu_entry {
	14	u32 installed_cpu;
	15	u32 fixed_errata_mask;
	16	u32 fixed_errata_compare;
	17	u16 equiv_cpu;
	18	u16 res;
	19	} __attribute__((packed));
	20
	21	struct microcode_header_amd {
	22	u32 data_code;
	23	u32 patch_id;
	24	u16 mc_patch_data_id;
	25	u8 mc_patch_data_len;
	26	u8 init_flag;
	27	u32 mc_patch_data_checksum;
	28	u32 nb_dev_id;
	29	u32 sb_dev_id;
	30	u16 processor_rev_id;
	31	u8 nb_rev_id;
	32	u8 sb_rev_id;
	33	u8 bios_api_rev;
	34	u8 reserved1[3];
	35	u32 match_reg[8];
	36	} __attribute__((packed));
	37
	38	struct microcode_amd {
	39	struct microcode_header_amd hdr;
	40	unsigned int mpb[0];
	41	};
	42
	43	static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
	44	unsigned int sig)
	45	{
	46	int i = 0;
	47
	48	if (!equiv_cpu_table)
	49	return 0;
	50
	51	while (equiv_cpu_table[i].installed_cpu != 0) {
	52	if (sig == equiv_cpu_table[i].installed_cpu)
	53	return equiv_cpu_table[i].equiv_cpu;
	54
	55	i++;
	56	}
	57	return 0;
	58	}
	59
	60	extern int __apply_microcode_amd(struct microcode_amd *mc_amd);
	61	extern int apply_microcode_amd(int cpu);
84516098	62	extern enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size);
a76096a6	63
757885e9 JS	64	#ifdef CONFIG_MICROCODE_AMD_EARLY
	65	#ifdef CONFIG_X86_32
	66	#define MPB_MAX_SIZE PAGE_SIZE
6b3389ac	67	extern u8 amd_bsp_mpb[MPB_MAX_SIZE];
757885e9 JS	68	#endif
757885e9 JS	69	extern void __init load_ucode_amd_bsp(void);
148f9bb8	70	extern void load_ucode_amd_ap(void);
757885e9 JS	71	extern int __init save_microcode_in_initrd_amd(void);
	72	#else
	73	static inline void __init load_ucode_amd_bsp(void) {}
148f9bb8	74	static inline void load_ucode_amd_ap(void) {}
757885e9 JS	75	static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; }
	76	#endif
	77
a76096a6	78	#endif /* _ASM_X86_MICROCODE_AMD_H */