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-rw-r--r--arch/i386/kernel/dmi_scan.c90
-rw-r--r--arch/ia64/Kconfig4
-rw-r--r--arch/ia64/kernel/Makefile3
-rw-r--r--arch/ia64/kernel/setup.c8
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);