diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/dmi_scan.c | 90 | ||||
| -rw-r--r-- | arch/ia64/Kconfig | 4 | ||||
| -rw-r--r-- | arch/ia64/kernel/Makefile | 3 | ||||
| -rw-r--r-- | arch/ia64/kernel/setup.c | 8 |
4 files changed, 72 insertions, 33 deletions
diff --git a/arch/i386/kernel/dmi_scan.c b/arch/i386/kernel/dmi_scan.c index ebc8dc116c43..bfecbd46f22a 100644 --- a/arch/i386/kernel/dmi_scan.c +++ b/arch/i386/kernel/dmi_scan.c @@ -3,6 +3,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/dmi.h> +#include <linux/efi.h> #include <linux/bootmem.h> #include <linux/slab.h> #include <asm/dmi.h> @@ -185,47 +186,72 @@ static void __init dmi_decode(struct dmi_header *dm) } } -void __init dmi_scan_machine(void) +static int __init dmi_present(char __iomem *p) { u8 buf[15]; - char __iomem *p, *q; + memcpy_fromio(buf, p, 15); + if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) { + u16 num = (buf[13] << 8) | buf[12]; + u16 len = (buf[7] << 8) | buf[6]; + u32 base = (buf[11] << 24) | (buf[10] << 16) | + (buf[9] << 8) | buf[8]; - /* - * no iounmap() for that ioremap(); it would be a no-op, but it's - * so early in setup that sucker gets confused into doing what - * it shouldn't if we actually call it. - */ - p = ioremap(0xF0000, 0x10000); - if (p == NULL) - goto out; - - for (q = p; q < p + 0x10000; q += 16) { - memcpy_fromio(buf, q, 15); - if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) { - u16 num = (buf[13] << 8) | buf[12]; - u16 len = (buf[7] << 8) | buf[6]; - u32 base = (buf[11] << 24) | (buf[10] << 16) | - (buf[9] << 8) | buf[8]; - - /* - * DMI version 0.0 means that the real version is taken from - * the SMBIOS version, which we don't know at this point. - */ - if (buf[14] != 0) - printk(KERN_INFO "DMI %d.%d present.\n", - buf[14] >> 4, buf[14] & 0xF); - else - printk(KERN_INFO "DMI present.\n"); + /* + * DMI version 0.0 means that the real version is taken from + * the SMBIOS version, which we don't know at this point. + */ + if (buf[14] != 0) + printk(KERN_INFO "DMI %d.%d present.\n", + buf[14] >> 4, buf[14] & 0xF); + else + printk(KERN_INFO "DMI present.\n"); + if (dmi_table(base,len, num, dmi_decode) == 0) + return 0; + } + return 1; +} - if (dmi_table(base,len, num, dmi_decode) == 0) +void __init dmi_scan_machine(void) +{ + char __iomem *p, *q; + int rc; + + if (efi_enabled) { + if (!efi.smbios) + goto out; + + /* This is called as a core_initcall() because it isn't + * needed during early boot. This also means we can + * iounmap the space when we're done with it. + */ + p = dmi_ioremap((unsigned long)efi.smbios, 0x10000); + if (p == NULL) + goto out; + + rc = dmi_present(p + 0x10); /* offset of _DMI_ string */ + iounmap(p); + if (!rc) + return; + } + else { + /* + * no iounmap() for that ioremap(); it would be a no-op, but + * it's so early in setup that sucker gets confused into doing + * what it shouldn't if we actually call it. + */ + p = dmi_ioremap(0xF0000, 0x10000); + if (p == NULL) + goto out; + + for (q = p; q < p + 0x10000; q += 16) { + rc = dmi_present(q); + if (!rc) return; } } - -out: printk(KERN_INFO "DMI not present or invalid.\n"); + out: printk(KERN_INFO "DMI not present or invalid.\n"); } - /** * dmi_check_system - check system DMI data * @list: array of dmi_system_id structures to match against diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 10b6b9e7716b..d790a6d90261 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -42,6 +42,10 @@ config TIME_INTERPOLATION bool default y +config DMI + bool + default y + config EFI bool default y diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 09a0dbc17fb6..59e871dae742 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds obj-y := acpi.o entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o \ irq_lsapic.o ivt.o machvec.o pal.o patch.o process.o perfmon.o ptrace.o sal.o \ salinfo.o semaphore.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \ - unwind.o mca.o mca_asm.o topology.o + unwind.o mca.o mca_asm.o topology.o dmi_scan.o obj-$(CONFIG_IA64_BRL_EMU) += brl_emu.o obj-$(CONFIG_IA64_GENERIC) += acpi-ext.o @@ -30,6 +30,7 @@ obj-$(CONFIG_IA64_MCA_RECOVERY) += mca_recovery.o obj-$(CONFIG_KPROBES) += kprobes.o jprobes.o obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR) += uncached.o mca_recovery-y += mca_drv.o mca_drv_asm.o +dmi_scan-y += ../../i386/kernel/dmi_scan.o # The gate DSO image is built using a special linker script. targets += gate.so gate-syms.o diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index eb388e271b2b..a4421a66ea5b 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -37,6 +37,7 @@ #include <linux/string.h> #include <linux/threads.h> #include <linux/tty.h> +#include <linux/dmi.h> #include <linux/serial.h> #include <linux/serial_core.h> #include <linux/efi.h> @@ -887,3 +888,10 @@ check_bugs (void) ia64_patch_mckinley_e9((unsigned long) __start___mckinley_e9_bundles, (unsigned long) __end___mckinley_e9_bundles); } + +static int __init run_dmi_scan(void) +{ + dmi_scan_machine(); + return 0; +} +core_initcall(run_dmi_scan); |