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authorRusty Russell <rusty@rustcorp.com.au>2009-11-17 17:39:53 -0500
committerDave Jones <davej@redhat.com>2009-11-24 13:33:34 -0500
commit1cce76c2ac60df40b02bf747982fb3f00e68f50a (patch)
tree1b59d82a0b71f9d9607c66d4294994baecd47dfd /arch
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>
Diffstat (limited to 'arch')
-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;
39 39
40/* speedstep_processor 40/* speedstep_processor
41 */ 41 */
42static unsigned int speedstep_processor; 42static enum speedstep_processor speedstep_processor;
43 43
44static u32 pmbase; 44static u32 pmbase;
45 45
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;
34 * GET PROCESSOR CORE SPEED IN KHZ * 34 * GET PROCESSOR CORE SPEED IN KHZ *
35 *********************************************************************/ 35 *********************************************************************/
36 36
37static unsigned int pentium3_get_frequency(unsigned int processor) 37static unsigned int pentium3_get_frequency(enum speedstep_processor processor)
38{ 38{
39 /* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */ 39 /* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */
40 struct { 40 struct {
@@ -227,7 +227,7 @@ static unsigned int pentium4_get_frequency(void)
227 227
228 228
229/* Warning: may get called from smp_call_function_single. */ 229/* Warning: may get called from smp_call_function_single. */
230unsigned int speedstep_get_frequency(unsigned int processor) 230unsigned int speedstep_get_frequency(enum speedstep_processor processor)
231{ 231{
232 switch (processor) { 232 switch (processor) {
233 case SPEEDSTEP_CPU_PCORE: 233 case SPEEDSTEP_CPU_PCORE:
@@ -380,7 +380,7 @@ EXPORT_SYMBOL_GPL(speedstep_detect_processor);
380 * DETECT SPEEDSTEP SPEEDS * 380 * DETECT SPEEDSTEP SPEEDS *
381 *********************************************************************/ 381 *********************************************************************/
382 382
383unsigned int speedstep_get_freqs(unsigned int processor, 383unsigned int speedstep_get_freqs(enum speedstep_processor processor,
384 unsigned int *low_speed, 384 unsigned int *low_speed,
385 unsigned int *high_speed, 385 unsigned int *high_speed,
386 unsigned int *transition_latency, 386 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 @@
11 11
12 12
13/* processors */ 13/* processors */
14 14enum speedstep_processor {
15#define SPEEDSTEP_CPU_PIII_C_EARLY 0x00000001 /* Coppermine core */ 15 SPEEDSTEP_CPU_PIII_C_EARLY = 0x00000001, /* Coppermine core */
16#define SPEEDSTEP_CPU_PIII_C 0x00000002 /* Coppermine core */ 16 SPEEDSTEP_CPU_PIII_C = 0x00000002, /* Coppermine core */
17#define SPEEDSTEP_CPU_PIII_T 0x00000003 /* Tualatin core */ 17 SPEEDSTEP_CPU_PIII_T = 0x00000003, /* Tualatin core */
18#define SPEEDSTEP_CPU_P4M 0x00000004 /* P4-M */ 18 SPEEDSTEP_CPU_P4M = 0x00000004, /* P4-M */
19
20/* the following processors are not speedstep-capable and are not auto-detected 19/* the following processors are not speedstep-capable and are not auto-detected
21 * in speedstep_detect_processor(). However, their speed can be detected using 20 * in speedstep_detect_processor(). However, their speed can be detected using
22 * the speedstep_get_frequency() call. */ 21 * the speedstep_get_frequency() call. */
23#define SPEEDSTEP_CPU_PM 0xFFFFFF03 /* Pentium M */ 22 SPEEDSTEP_CPU_PM = 0xFFFFFF03, /* Pentium M */
24#define SPEEDSTEP_CPU_P4D 0xFFFFFF04 /* desktop P4 */ 23 SPEEDSTEP_CPU_P4D = 0xFFFFFF04, /* desktop P4 */
25#define SPEEDSTEP_CPU_PCORE 0xFFFFFF05 /* Core */ 24 SPEEDSTEP_CPU_PCORE = 0xFFFFFF05, /* Core */
25};
26 26
27/* speedstep states -- only two of them */ 27/* speedstep states -- only two of them */
28 28
@@ -31,10 +31,10 @@
31 31
32 32
33/* detect a speedstep-capable processor */ 33/* detect a speedstep-capable processor */
34extern unsigned int speedstep_detect_processor (void); 34extern enum speedstep_processor speedstep_detect_processor(void);
35 35
36/* detect the current speed (in khz) of the processor */ 36/* detect the current speed (in khz) of the processor */
37extern unsigned int speedstep_get_frequency(unsigned int processor); 37extern unsigned int speedstep_get_frequency(enum speedstep_processor processor);
38 38
39 39
40/* detect the low and high speeds of the processor. The callback 40/* detect the low and high speeds of the processor. The callback
@@ -42,7 +42,7 @@ extern unsigned int speedstep_get_frequency(unsigned int processor);
42 * SPEEDSTEP_LOW; the second argument is zero so that no 42 * SPEEDSTEP_LOW; the second argument is zero so that no
43 * cpufreq_notify_transition calls are initiated. 43 * cpufreq_notify_transition calls are initiated.
44 */ 44 */
45extern unsigned int speedstep_get_freqs(unsigned int processor, 45extern unsigned int speedstep_get_freqs(enum speedstep_processor processor,
46 unsigned int *low_speed, 46 unsigned int *low_speed,
47 unsigned int *high_speed, 47 unsigned int *high_speed,
48 unsigned int *transition_latency, 48 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;
35static unsigned int smi_sig; 35static unsigned int smi_sig;
36 36
37/* info about the processor */ 37/* info about the processor */
38static unsigned int speedstep_processor; 38static enum speedstep_processor speedstep_processor;
39 39
40/* 40/*
41 * There are only two frequency states for each processor. Values 41 * There are only two frequency states for each processor. Values