From: Andi Kleen <ak@suse.de>
Date: Wed, 11 Jan 2006 21:42:51 +0000 (+0100)
Subject: [PATCH] i386/x86-64: Update AMD CPUID flags
X-Git-Tag: v2.6.16-rc1~371
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f98bc4991df8e7b5972489b4632e1e5c03cd1ee;p=linux-2.6

[PATCH] i386/x86-64: Update AMD CPUID flags

Print bits for RDTSCP, SVM, CR8-LEGACY.

Also now print power flags on i386 like x86-64 always did.
This will add a new line in the 386 cpuinfo, but that shouldn't
be an issue - did that in the past too and I haven't heard
of any breakage.

I shrunk some of the fields in the i386 cpuinfo_x86 to chars
to make up for the new int "x86_power" field. Overall it's
smaller than before.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index 4397f61705..333578a4e9 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -217,8 +217,9 @@ static void __init init_amd(struct cpuinfo_x86 *c)
 	}
 
 	if (cpuid_eax(0x80000000) >= 0x80000007) {
-		if (cpuid_edx(0x80000007) & (1<<8))
-			set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability);
+		c->x86_power = cpuid_edx(0x80000007);
+		if (c->x86_power & (1<<8))
+			set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
 	}
 
 #ifdef CONFIG_X86_HT
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 66592fad2b..89a85af33d 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -29,7 +29,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
-		NULL, "fxsr_opt", NULL, NULL, NULL, "lm", "3dnowext", "3dnow",
+		NULL, "fxsr_opt", "rdtscp", NULL, NULL, "lm", "3dnowext", "3dnow",
 
 		/* Transmeta-defined */
 		"recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
@@ -57,11 +57,21 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
 		/* AMD-defined (#2) */
-		"lahf_lm", "cmp_legacy", NULL, NULL, NULL, NULL, NULL, NULL,
+		"lahf_lm", "cmp_legacy", "svm", NULL, "cr8legacy", NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 	};
+	static char *x86_power_flags[] = {
+		"ts",	/* temperature sensor */
+		"fid",  /* frequency id control */
+		"vid",  /* voltage id control */
+		"ttp",  /* thermal trip */
+		"tm",
+		"stc",
+		NULL,
+		/* nothing */	/* constant_tsc - moved to flags */
+	};
 	struct cpuinfo_x86 *c = v;
 	int i, n = c - cpu_data;
 	int fpu_exception;
@@ -131,6 +141,17 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		     x86_cap_flags[i] != NULL )
 			seq_printf(m, " %s", x86_cap_flags[i]);
 
+	for (i = 0; i < 32; i++)
+		if (c->x86_power & (1 << i)) {
+			if (i < ARRAY_SIZE(x86_power_flags) &&
+			    x86_power_flags[i])
+				seq_printf(m, "%s%s",
+					   x86_power_flags[i][0]?" ":"",
+					   x86_power_flags[i]);
+			else
+				seq_printf(m, " [%d]", i);
+		}
+
 	seq_printf(m, "\nbogomips\t: %lu.%02lu\n\n",
 		     c->loops_per_jiffy/(500000/HZ),
 		     (c->loops_per_jiffy/(5000/HZ)) % 100);
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index d9c1c3bd61..ee3a5cd7d8 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -1233,7 +1233,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, "nx", NULL, "mmxext", NULL,
-		NULL, "fxsr_opt", NULL, NULL, NULL, "lm", "3dnowext", "3dnow",
+		NULL, "fxsr_opt", "rdtscp", NULL, NULL, "lm", "3dnowext", "3dnow",
 
 		/* Transmeta-defined */
 		"recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
@@ -1261,7 +1261,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
 		/* AMD-defined (#2) */
-		"lahf_lm", "cmp_legacy", NULL, NULL, NULL, NULL, NULL, NULL,
+		"lahf_lm", "cmp_legacy", "svm", NULL, "cr8_legacy", NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -1272,8 +1272,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		"vid",  /* voltage id control */
 		"ttp",  /* thermal trip */
 		"tm",
-		"stc"
-		"?",
+		"stc",
+		NULL,
 		/* nothing */	/* constant_tsc - moved to flags */
 	};
 
@@ -1354,8 +1354,11 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		unsigned i;
 		for (i = 0; i < 32; i++) 
 			if (c->x86_power & (1 << i)) {
-				if (i < ARRAY_SIZE(x86_power_flags))
-					seq_printf(m, " %s", x86_power_flags[i]);
+				if (i < ARRAY_SIZE(x86_power_flags) &&
+					x86_power_flags[i])
+					seq_printf(m, "%s%s",
+						x86_power_flags[i][0]?" ":"",
+						x86_power_flags[i]);
 				else
 					seq_printf(m, " [%d]", i);
 			}
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index 5c96cf6dcb..53461f42b6 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -61,9 +61,11 @@ struct cpuinfo_x86 {
 	int 	x86_cache_size;  /* in KB - valid for CPUS which support this
 				    call  */
 	int 	x86_cache_alignment;	/* In bytes */
-	int	fdiv_bug;
-	int	f00f_bug;
-	int	coma_bug;
+	char	fdiv_bug;
+	char	f00f_bug;
+	char	coma_bug;
+	char	pad0;
+	int	x86_power;
 	unsigned long loops_per_jiffy;
 	unsigned char x86_max_cores;	/* cpuid returned max cores value */
 	unsigned char booted_cores;	/* number of cores as seen by OS */