37f3935029
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> with minor changes to allow 32bit and 64bit compilation and (I hope), Peter's concerns addressed. git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4624 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* This file is part of msrtool.
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*
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* Copyright (c) 2008 Peter Stuge <peter@stuge.se>
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* Copyright (c) 2009 coresystems GmbH
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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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#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) {
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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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