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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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cf0744021c
This patch makes a couple of changes to the SMBIOS/DMI scanning
code so it can be used on other archs (such as ARM and arm64):
(a) wrap the calls to ioremap()/iounmap(), this allows the use of a
flavor of ioremap() more suitable for random unaligned access;
(b) allow the non-EFI fallback probe into hardcoded physical address
0xF0000 to be disabled.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 lines
475 B
C
22 lines
475 B
C
#ifndef _ASM_X86_DMI_H
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#define _ASM_X86_DMI_H
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#include <linux/compiler.h>
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#include <linux/init.h>
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#include <asm/io.h>
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#include <asm/setup.h>
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static __always_inline __init void *dmi_alloc(unsigned len)
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{
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return extend_brk(len, sizeof(int));
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}
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/* Use early IO mappings for DMI because it's initialized early */
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#define dmi_early_remap early_ioremap
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#define dmi_early_unmap early_iounmap
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#define dmi_remap ioremap
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#define dmi_unmap iounmap
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#endif /* _ASM_X86_DMI_H */
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