afd4c876a9
Also split "this is part of" line from copyright notices. Change-Id: Ibc2446410bcb3104ead458b40a9ce7819c61a8eb Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41067 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/* This file is part of msrtool. */
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/*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <pci/pci.h>
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#include "msrtool.h"
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static struct cpuid_t id;
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struct cpuid_t *cpuid(void) {
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uint32_t outeax;
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uint32_t outebx;
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/* First, we need determine which vendor we have */
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#if defined(__DARWIN__) && !defined(__LP64__)
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asm volatile (
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"pushl %%ebx \n"
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"cpuid \n"
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"popl %%ebx \n"
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: "=b" (outebx) : "a" (0) : "%ecx", "%edx"
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);
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#else
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asm ("cpuid" : "=b" (outebx) : "a" (0) : "%ecx", "%edx");
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#endif
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id.vendor = outebx;
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/* Then, identificate CPU itself */
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#if defined(__DARWIN__) && !defined(__LP64__)
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asm volatile (
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"pushl %%ebx \n"
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"cpuid \n"
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"popl %%ebx \n"
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: "=a" (outeax) : "a" (1) : "%ecx", "%edx"
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);
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#else
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asm ("cpuid" : "=a" (outeax) : "a" (1) : "%ebx", "%ecx", "%edx");
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#endif
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id.stepping = outeax & 0xf;
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outeax >>= 4;
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id.model = outeax & 0xf;
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outeax >>= 4;
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id.family = outeax & 0xf;
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outeax >>= 8;
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id.ext_model = outeax & 0xf;
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outeax >>= 4;
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id.ext_family = outeax & 0xff;
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if ((0xf == id.family) || ((VENDOR_INTEL == id.vendor)
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&& (0x6 == id.family))) {
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/* Intel says always do this, AMD says only for family f */
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id.model |= (id.ext_model << 4);
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id.family += id.ext_family;
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}
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printf_verbose("CPU: family %x, model %x, stepping %x\n",
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id.family, id.model, id.stepping);
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return &id;
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}
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struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device) {
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struct pci_dev *temp;
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struct pci_filter filter;
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pci_filter_init(NULL, &filter);
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filter.vendor = vendor;
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filter.device = device;
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for (temp = pacc->devices; temp; temp = temp->next)
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if (pci_filter_match(&filter, temp))
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return temp;
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return NULL;
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}
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