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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2014-01-23 15:54:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 16:36:57 -0800
commitcf0744021c5d5de54d2c66e2020c6de2fe800264 (patch)
tree0d2032c3d04aabe53ac3d9a2963c41d8c0b331c1 /arch/x86
parent3e2a4c183ace8708c69f589505fb82bb63010ade (diff)
firmware/dmi_scan: generalize for use by other archs
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>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/include/asm/dmi.h6
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d3b9186e4c2..5aadc49a762 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -731,6 +731,7 @@ config APB_TIMER
# The code disables itself when not needed.
config DMI
default y
+ select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
bool "Enable DMI scanning" if EXPERT
---help---
Enabled scanning of DMI to identify machine quirks. Say Y
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
index fd8f9e2ca35..535192f6bfa 100644
--- a/arch/x86/include/asm/dmi.h
+++ b/arch/x86/include/asm/dmi.h
@@ -13,7 +13,9 @@ static __always_inline __init void *dmi_alloc(unsigned len)
}
/* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap early_ioremap
-#define dmi_iounmap early_iounmap
+#define dmi_early_remap early_ioremap
+#define dmi_early_unmap early_iounmap
+#define dmi_remap ioremap
+#define dmi_unmap iounmap
#endif /* _ASM_X86_DMI_H */