summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRusty Russell <rusty@rustcorp.com.au>2009-11-17 14:39:53 -0800
committerDave Jones <davej@redhat.com>2009-11-24 13:33:34 -0500
commit1cce76c2ac60df40b02bf747982fb3f00e68f50a (patch)
tree1b59d82a0b71f9d9607c66d4294994baecd47dfd
parentbbe237aafeaae37a1088f2a95ebe81ff81d9e646 (diff)
[CPUFREQ] use an enum for speedstep processor identification
The "unsigned int processor" everywhere confused Rusty, leading to breakage when he passed in smp_processor_id(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Jones <davej@redhat.com>
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-ich.c2
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-lib.c6
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-lib.h24
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-smi.c2
4 files changed, 17 insertions, 17 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
index 3ae5a7a3a500..2ce8e0b5cc54 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
@@ -39,7 +39,7 @@ static struct pci_dev *speedstep_chipset_dev;
/* speedstep_processor
*/
-static unsigned int speedstep_processor;
+static enum speedstep_processor speedstep_processor;
static u32 pmbase;
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
index f4c290b8482f..ad0083abfa23 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
@@ -34,7 +34,7 @@ static int relaxed_check;
* GET PROCESSOR CORE SPEED IN KHZ *
*********************************************************************/
-static unsigned int pentium3_get_frequency(unsigned int processor)
+static unsigned int pentium3_get_frequency(enum speedstep_processor processor)
{
/* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */
struct {
@@ -227,7 +227,7 @@ static unsigned int pentium4_get_frequency(void)
/* Warning: may get called from smp_call_function_single. */
-unsigned int speedstep_get_frequency(unsigned int processor)
+unsigned int speedstep_get_frequency(enum speedstep_processor processor)
{
switch (processor) {
case SPEEDSTEP_CPU_PCORE:
@@ -380,7 +380,7 @@ EXPORT_SYMBOL_GPL(speedstep_detect_processor);
* DETECT SPEEDSTEP SPEEDS *
*********************************************************************/
-unsigned int speedstep_get_freqs(unsigned int processor,
+unsigned int speedstep_get_freqs(enum speedstep_processor processor,
unsigned int *low_speed,
unsigned int *high_speed,
unsigned int *transition_latency,
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h
index 2b6c04e5a304..70d9cea1219d 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h
@@ -11,18 +11,18 @@
/* processors */
-
-#define SPEEDSTEP_CPU_PIII_C_EARLY 0x00000001 /* Coppermine core */
-#define SPEEDSTEP_CPU_PIII_C 0x00000002 /* Coppermine core */
-#define SPEEDSTEP_CPU_PIII_T 0x00000003 /* Tualatin core */
-#define SPEEDSTEP_CPU_P4M 0x00000004 /* P4-M */
-
+enum speedstep_processor {
+ SPEEDSTEP_CPU_PIII_C_EARLY = 0x00000001, /* Coppermine core */
+ SPEEDSTEP_CPU_PIII_C = 0x00000002, /* Coppermine core */
+ SPEEDSTEP_CPU_PIII_T = 0x00000003, /* Tualatin core */
+ SPEEDSTEP_CPU_P4M = 0x00000004, /* P4-M */
/* the following processors are not speedstep-capable and are not auto-detected
* in speedstep_detect_processor(). However, their speed can be detected using
* the speedstep_get_frequency() call. */
-#define SPEEDSTEP_CPU_PM 0xFFFFFF03 /* Pentium M */
-#define SPEEDSTEP_CPU_P4D 0xFFFFFF04 /* desktop P4 */
-#define SPEEDSTEP_CPU_PCORE 0xFFFFFF05 /* Core */
+ SPEEDSTEP_CPU_PM = 0xFFFFFF03, /* Pentium M */
+ SPEEDSTEP_CPU_P4D = 0xFFFFFF04, /* desktop P4 */
+ SPEEDSTEP_CPU_PCORE = 0xFFFFFF05, /* Core */
+};
/* speedstep states -- only two of them */
@@ -31,10 +31,10 @@
/* detect a speedstep-capable processor */
-extern unsigned int speedstep_detect_processor (void);
+extern enum speedstep_processor speedstep_detect_processor(void);
/* detect the current speed (in khz) of the processor */
-extern unsigned int speedstep_get_frequency(unsigned int processor);
+extern unsigned int speedstep_get_frequency(enum speedstep_processor processor);
/* detect the low and high speeds of the processor. The callback
@@ -42,7 +42,7 @@ extern unsigned int speedstep_get_frequency(unsigned int processor);
* SPEEDSTEP_LOW; the second argument is zero so that no
* cpufreq_notify_transition calls are initiated.
*/
-extern unsigned int speedstep_get_freqs(unsigned int processor,
+extern unsigned int speedstep_get_freqs(enum speedstep_processor processor,
unsigned int *low_speed,
unsigned int *high_speed,
unsigned int *transition_latency,
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
index befea088e4f5..04d73c114e49 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
@@ -35,7 +35,7 @@ static int smi_cmd;
static unsigned int smi_sig;
/* info about the processor */
-static unsigned int speedstep_processor;
+static enum speedstep_processor speedstep_processor;
/*
* There are only two frequency states for each processor. Values