From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 arch/i386/mach-generic/probe.c | 102 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 arch/i386/mach-generic/probe.c

(limited to 'arch/i386/mach-generic/probe.c')

diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c
new file mode 100644
index 000000000000..5497c65a8790
--- /dev/null
+++ b/arch/i386/mach-generic/probe.c
@@ -0,0 +1,102 @@
+/* Copyright 2003 Andi Kleen, SuSE Labs. 
+ * Subject to the GNU Public License, v.2 
+ * 
+ * Generic x86 APIC driver probe layer.
+ */  
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <asm/fixmap.h>
+#include <asm/mpspec.h>
+#include <asm/apicdef.h>
+#include <asm/genapic.h>
+
+extern struct genapic apic_summit;
+extern struct genapic apic_bigsmp;
+extern struct genapic apic_es7000;
+extern struct genapic apic_default;
+
+struct genapic *genapic = &apic_default;
+
+struct genapic *apic_probe[] __initdata = { 
+	&apic_summit,
+	&apic_bigsmp, 
+	&apic_es7000,
+	&apic_default,	/* must be last */
+	NULL,
+};
+
+void __init generic_apic_probe(char *command_line) 
+{ 
+	char *s;
+	int i;
+	int changed = 0;
+
+	s = strstr(command_line, "apic=");
+	if (s && (s == command_line || isspace(s[-1]))) { 
+		char *p = strchr(s, ' '), old; 
+		if (!p)
+			p = strchr(s, '\0'); 
+		old = *p; 
+		*p = 0; 
+		for (i = 0; !changed && apic_probe[i]; i++) {
+			if (!strcmp(apic_probe[i]->name, s+5)) { 
+				changed = 1;
+				genapic = apic_probe[i];
+			}
+		}
+		if (!changed)
+			printk(KERN_ERR "Unknown genapic `%s' specified.\n", s);
+		*p = old;
+	} 
+	for (i = 0; !changed && apic_probe[i]; i++) { 
+		if (apic_probe[i]->probe()) {
+			changed = 1;
+			genapic = apic_probe[i]; 
+		} 
+	}
+	/* Not visible without early console */ 
+	if (!changed) 
+		panic("Didn't find an APIC driver"); 
+
+	printk(KERN_INFO "Using APIC driver %s\n", genapic->name);
+} 
+
+/* These functions can switch the APIC even after the initial ->probe() */
+
+int __init mps_oem_check(struct mp_config_table *mpc, char *oem, char *productid)
+{ 
+	int i;
+	for (i = 0; apic_probe[i]; ++i) { 
+		if (apic_probe[i]->mps_oem_check(mpc,oem,productid)) { 
+			genapic = apic_probe[i];
+			printk(KERN_INFO "Switched to APIC driver `%s'.\n", 
+			       genapic->name);
+			return 1;
+		} 
+	} 
+	return 0;
+} 
+
+int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+	int i;
+	for (i = 0; apic_probe[i]; ++i) { 
+		if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) { 
+			genapic = apic_probe[i];
+			printk(KERN_INFO "Switched to APIC driver `%s'.\n", 
+			       genapic->name);
+			return 1;
+		} 
+	} 
+	return 0;	
+}
+
+int hard_smp_processor_id(void)
+{
+	return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID));
+}
-- 
cgit v1.2.3-59-g8ed1b