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      1 /* $NetBSD: cpu_ucode.h,v 1.5 2022/09/15 14:34:22 msaitoh Exp $ */
      2 /*
      3  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Christoph Egger.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef _X86_CPU_UCODE_H_
     32 #define _X86_CPU_UCODE_H_
     33 
     34 #define CPU_UCODE_LOADER_AMD 0
     35 struct cpu_ucode_version_amd {
     36 	uint64_t version;
     37 };
     38 
     39 #define CPU_UCODE_LOADER_INTEL1 1
     40 struct cpu_ucode_version_intel1 {
     41 	uint32_t ucodeversion;
     42 	int platformid;
     43 };
     44 
     45 #ifdef _KERNEL
     46 #include <sys/cpu.h>
     47 #include <sys/cpuio.h>
     48 #include <dev/firmload.h>
     49 
     50 int cpu_ucode_amd_get_version(struct cpu_ucode_version *, void *, size_t);
     51 int cpu_ucode_amd_firmware_open(firmware_handle_t *, const char *);
     52 int cpu_ucode_amd_apply(struct cpu_ucode_softc *, int);
     53 
     54 int cpu_ucode_intel_get_version(struct cpu_ucode_version *, void *, size_t);
     55 int cpu_ucode_intel_firmware_open(firmware_handle_t *, const char *);
     56 int cpu_ucode_intel_apply(struct cpu_ucode_softc *, int);
     57 #endif /* _KERNEL */
     58 
     59 struct intel1_ucode_header {
     60 	uint32_t	uh_header_ver;
     61 	uint32_t	uh_rev;
     62 	uint32_t	uh_date;
     63 	uint32_t	uh_signature;
     64 	uint32_t	uh_checksum;
     65 	uint32_t	uh_loader_rev;
     66 	uint32_t	uh_proc_flags;
     67 	uint32_t	uh_data_size;
     68 	uint32_t	uh_total_size;
     69 	uint32_t	uh_reserved[3];
     70 };
     71 
     72 struct intel1_ucode_ext_table {
     73 	uint32_t	uet_count;
     74 	uint32_t	uet_checksum;
     75 	uint32_t	uet_reserved[3];
     76 };
     77 
     78 struct intel1_ucode_proc_signature {
     79 	uint32_t	ups_signature;
     80 	uint32_t	ups_proc_flags;
     81 	uint32_t	ups_checksum;
     82 };
     83 
     84 #endif
     85