On 3 June 2014 11:30, Yi Li yi.li@linaro.org wrote:
Add smbios/dmi support on arm64 system, it depends on EFI boot.
Signed-off-by: Yi Li yi.li@linaro.org
Acked-by: Ard Biesheuvel ard.biesheuvel@linaro.org
Changes since v1: -Followed Ard Biesheuvel's suggestion to rebase the patch on Matt Fleming's arm64-efi branch.
arch/arm64/Kconfig | 10 ++++++++++ arch/arm64/include/asm/dmi.h | 28 ++++++++++++++++++++++++++++ arch/arm64/kernel/setup.c | 2 ++ 3 files changed, 40 insertions(+) create mode 100644 arch/arm64/include/asm/dmi.h
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 6c71f12..13ee261 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -294,6 +294,16 @@ config EFI allow the kernel to be booted as an EFI application. This is only useful on systems that have UEFI firmware.
+config DMI
bool "Enable support for SMBIOS (DMI) tables"depends on EFIdefault yhelpThis enables SMBIOS/DMI feature for systems.This option is only useful on systems that have UEFI firmware.However, even with this option, the resultant kernel shouldcontinue to boot on existing non-UEFI platforms.endmenu
menu "Userspace binary formats" diff --git a/arch/arm64/include/asm/dmi.h b/arch/arm64/include/asm/dmi.h new file mode 100644 index 0000000..f2198bf --- /dev/null +++ b/arch/arm64/include/asm/dmi.h @@ -0,0 +1,28 @@ +/*
- arch/arm64/include/asm/dmi.h
- Copyright (C) 2013 Linaro Limited.
- Written by: Yi Li (yi.li@linaro.org)
- based on arch/ia64/include/asm/dmi.h
- This file is subject to the terms and conditions of the GNU General Public
- License. See the file "COPYING" in the main directory of this archive
- for more details.
- */
+#ifndef _ASM_DMI_H +#define _ASM_DMI_H 1
+#include <linux/slab.h> +#include <asm/io.h>
+/* Use efi mappings for DMI */ +#define dmi_early_remap(x, l) efi_lookup_mapped_addr(x) +#define dmi_early_unmap(x, l) +#define dmi_remap(x, l) efi_lookup_mapped_addr(x) +#define dmi_unmap(x) +#define dmi_alloc(l) kzalloc(l, GFP_ATOMIC)
+#endif diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 0a14aaf..7622561 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -42,6 +42,7 @@ #include <linux/of_fdt.h> #include <linux/of_platform.h> #include <linux/efi.h> +#include <linux/dmi.h>
#include <asm/fixmap.h> #include <asm/cputype.h> @@ -400,6 +401,7 @@ static int __init arm64_device_init(void) { of_clk_init(NULL); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
dmi_scan_machine(); return 0;} arch_initcall(arm64_device_init); -- 1.7.9.5
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