Commit 3f98bc49 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
Browse files

[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: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 152bf8c5

arch/i386/kernel/cpu/amd.c

+3 −2
Original line number Diff line number Diff line
@@ -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

arch/i386/kernel/cpu/proc.c

+23 −2
Original line number Diff line number Diff line
@@ -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);

arch/x86_64/kernel/setup.c

+9 −6
Original line number Diff line number Diff line
@@ -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);

			}

include/asm-i386/processor.h

+5 −3
Original line number Diff line number Diff line
@@ -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 */

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