6b5bc77c9b
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
85 lines
1.4 KiB
C
85 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <cpu/cpu.h>
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#ifndef __x86_64__
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/* Standard macro to see if a specific flag is changeable */
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static inline int flag_is_changeable_p(uint32_t flag)
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{
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uint32_t f1, f2;
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asm(
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"pushfl\n\t"
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"pushfl\n\t"
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"popl %0\n\t"
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"movl %0,%1\n\t"
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"xorl %2,%0\n\t"
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"pushl %0\n\t"
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"popfl\n\t"
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"pushfl\n\t"
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"popl %0\n\t"
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"popfl\n\t"
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: "=&r" (f1), "=&r" (f2)
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: "ir" (flag));
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return ((f1^f2) & flag) != 0;
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}
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/* Probe for the CPUID instruction */
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int cpu_have_cpuid(void)
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{
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return flag_is_changeable_p(X86_EFLAGS_ID);
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}
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#else
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int cpu_have_cpuid(void)
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{
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return 1;
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}
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#endif
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unsigned int cpu_cpuid_extended_level(void)
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{
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return cpuid_eax(0x80000000);
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}
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int cpu_phys_address_size(void)
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{
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if (!(cpu_have_cpuid()))
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return 32;
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if (cpu_cpuid_extended_level() >= 0x80000008)
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return cpuid_eax(0x80000008) & 0xff;
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if (cpuid_edx(1) & (CPUID_FEATURE_PAE | CPUID_FEATURE_PSE36))
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return 36;
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return 32;
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}
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/*
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* Get processor id using cpuid eax=1
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* return value in EAX register
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*/
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uint32_t cpu_get_cpuid(void)
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{
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return cpuid_eax(1);
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}
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/*
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* Get processor feature flag using cpuid eax=1
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* return value in ECX register
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*/
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uint32_t cpu_get_feature_flags_ecx(void)
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{
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return cpuid_ecx(1);
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}
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/*
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* Get processor feature flag using cpuid eax=1
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* return value in EDX register
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*/
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uint32_t cpu_get_feature_flags_edx(void)
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{
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return cpuid_edx(1);
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}
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