2008-08-08 16:26:53 +00:00
|
|
|
/*-
|
2023-05-10 15:40:58 +00:00
|
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
2017-11-27 15:37:16 +00:00
|
|
|
*
|
2008-08-08 16:26:53 +00:00
|
|
|
* Copyright (c) 2006, 2008 Stanislav Sedov <stas@FreeBSD.org>.
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
|
|
#include <assert.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <fcntl.h>
|
|
|
|
#include <err.h>
|
|
|
|
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <sys/stat.h>
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
|
|
#include <sys/ioccom.h>
|
|
|
|
#include <sys/cpuctl.h>
|
|
|
|
|
|
|
|
#include <machine/cpufunc.h>
|
|
|
|
#include <machine/specialreg.h>
|
|
|
|
|
|
|
|
#include "cpucontrol.h"
|
|
|
|
#include "amd.h"
|
|
|
|
|
|
|
|
int
|
|
|
|
amd_probe(int fd)
|
|
|
|
{
|
|
|
|
char vendor[13];
|
|
|
|
int error;
|
|
|
|
cpuctl_cpuid_args_t idargs = {
|
|
|
|
.level = 0,
|
|
|
|
};
|
|
|
|
|
|
|
|
error = ioctl(fd, CPUCTL_CPUID, &idargs);
|
|
|
|
if (error < 0) {
|
|
|
|
WARN(0, "ioctl()");
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
((uint32_t *)vendor)[0] = idargs.data[1];
|
|
|
|
((uint32_t *)vendor)[1] = idargs.data[3];
|
|
|
|
((uint32_t *)vendor)[2] = idargs.data[2];
|
|
|
|
vendor[12] = '\0';
|
|
|
|
if (strncmp(vendor, AMD_VENDOR_ID, sizeof(AMD_VENDOR_ID)) != 0)
|
|
|
|
return (1);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2018-11-14 00:21:49 +00:00
|
|
|
amd_update(const struct ucode_update_params *params)
|
2008-08-08 16:26:53 +00:00
|
|
|
{
|
2018-11-14 00:21:49 +00:00
|
|
|
int devfd;
|
2008-08-08 16:26:53 +00:00
|
|
|
unsigned int i;
|
2018-11-14 00:21:49 +00:00
|
|
|
const char *dev, *path;
|
|
|
|
const uint32_t *fw_image;
|
|
|
|
const amd_fw_header_t *fw_header;
|
2008-08-08 16:26:53 +00:00
|
|
|
uint32_t sum;
|
|
|
|
uint32_t signature;
|
2018-11-14 00:21:49 +00:00
|
|
|
const uint32_t *fw_data;
|
2008-08-08 16:26:53 +00:00
|
|
|
size_t fw_size;
|
|
|
|
cpuctl_cpuid_args_t idargs = {
|
|
|
|
.level = 1, /* Request signature. */
|
|
|
|
};
|
|
|
|
cpuctl_update_args_t args;
|
|
|
|
int error;
|
|
|
|
|
2018-11-14 00:21:49 +00:00
|
|
|
dev = params->dev_path;
|
|
|
|
path = params->fw_path;
|
|
|
|
devfd = params->devfd;
|
|
|
|
fw_image = params->fwimage;
|
|
|
|
|
2008-08-08 16:26:53 +00:00
|
|
|
assert(path);
|
|
|
|
assert(dev);
|
|
|
|
|
|
|
|
error = ioctl(devfd, CPUCTL_CPUID, &idargs);
|
|
|
|
if (error < 0) {
|
|
|
|
WARN(0, "ioctl()");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
signature = idargs.data[0];
|
|
|
|
WARNX(2, "found cpu family %#x model %#x "
|
|
|
|
"stepping %#x extfamily %#x extmodel %#x.",
|
|
|
|
(signature >> 8) & 0x0f, (signature >> 4) & 0x0f,
|
|
|
|
(signature >> 0) & 0x0f, (signature >> 20) & 0xff,
|
|
|
|
(signature >> 16) & 0x0f);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Open the firmware file.
|
|
|
|
*/
|
2018-11-14 00:21:49 +00:00
|
|
|
if (params->fwsize < sizeof(*fw_header)) {
|
2008-08-08 16:26:53 +00:00
|
|
|
WARNX(2, "file too short: %s", path);
|
|
|
|
goto fail;
|
|
|
|
}
|
2018-11-14 00:21:49 +00:00
|
|
|
fw_header = (const amd_fw_header_t *)fw_image;
|
2008-08-08 16:26:53 +00:00
|
|
|
if ((fw_header->magic >> 8) != AMD_MAGIC) {
|
|
|
|
WARNX(2, "%s is not a valid amd firmware: version mismatch",
|
|
|
|
path);
|
|
|
|
goto fail;
|
|
|
|
}
|
2018-11-14 00:21:49 +00:00
|
|
|
fw_data = (const uint32_t *)(fw_header + 1);
|
|
|
|
fw_size = (params->fwsize - sizeof(*fw_header)) / sizeof(uint32_t);
|
2008-08-08 16:26:53 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Check the primary checksum.
|
|
|
|
*/
|
|
|
|
sum = 0;
|
|
|
|
for (i = 0; i < fw_size; i++)
|
|
|
|
sum += fw_data[i];
|
|
|
|
if (sum != fw_header->checksum) {
|
|
|
|
WARNX(2, "%s: update data checksum invalid", path);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
if (signature == fw_header->signature) {
|
|
|
|
fprintf(stderr, "%s: updating cpu %s... ", path, dev);
|
|
|
|
|
2018-11-14 00:21:49 +00:00
|
|
|
args.data = __DECONST(void *, fw_image);
|
|
|
|
args.size = params->fwsize;
|
2012-06-03 08:30:00 +00:00
|
|
|
error = ioctl(devfd, CPUCTL_UPDATE, &args);
|
2008-08-08 16:26:53 +00:00
|
|
|
if (error < 0) {
|
|
|
|
fprintf(stderr, "failed.\n");
|
|
|
|
warn("ioctl()");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
fprintf(stderr, "done.\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
fail:
|
|
|
|
return;
|
|
|
|
}
|