#include <asm/msr.h>
#include "speedstep-lib.h"
-#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "speedstep-lib", msg)
+
+/* DEBUG
+ * Define it if you want verbose debug output, e.g. for bug reporting
+ */
+//#define SPEEDSTEP_DEBUG
+
+#ifdef SPEEDSTEP_DEBUG
+#define dprintk(msg...) printk(msg)
+#else
+#define dprintk(msg...) do { } while(0)
+#endif
#ifdef CONFIG_X86_SPEEDSTEP_RELAXED_CAP_CHECK
static int relaxed_check = 0;
/* read MSR 0x2a - we only need the low 32 bits */
rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp);
- dprintk("P3 - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp);
+ dprintk(KERN_DEBUG "speedstep-lib: P3 - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp);
msr_tmp = msr_lo;
/* decode the FSB */
}
/* decode the multiplier */
- if (processor == SPEEDSTEP_PROCESSOR_PIII_C_EARLY) {
- dprintk("workaround for early PIIIs\n");
+ if (processor == SPEEDSTEP_PROCESSOR_PIII_C_EARLY)
msr_lo &= 0x03c00000;
- } else
+ else
msr_lo &= 0x0bc00000;
msr_lo >>= 22;
while (msr_lo != msr_decode_mult[j].bitmap) {
j++;
}
- dprintk("speed is %u\n", (msr_decode_mult[j].ratio * msr_decode_fsb[i].value * 100));
-
return (msr_decode_mult[j].ratio * msr_decode_fsb[i].value * 100);
}
u32 msr_lo, msr_tmp;
rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp);
- dprintk("PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp);
+ dprintk(KERN_DEBUG "speedstep-lib: PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp);
/* see table B-2 of 24547212.pdf */
if (msr_lo & 0x00040000) {
}
msr_tmp = (msr_lo >> 22) & 0x1f;
- dprintk("bits 22-26 are 0x%x, speed is %u\n", msr_tmp, (msr_tmp * 100 * 1000));
+ dprintk(KERN_DEBUG "speedstep-lib: bits 22-26 are 0x%x\n", msr_tmp);
return (msr_tmp * 100 * 1000);
}
rdmsr(0x2c, msr_lo, msr_hi);
- dprintk("P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi);
+ dprintk(KERN_DEBUG "speedstep-lib: P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi);
/* decode the FSB: see IA-32 Intel (C) Architecture Software
* Developer's Manual, Volume 3: System Prgramming Guide,
/* Multiplier. */
mult = msr_lo >> 24;
- dprintk("P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n", fsb, mult, (fsb * mult));
+ dprintk(KERN_DEBUG "speedstep-lib: P4 - FSB %u kHz; Multiplier %u\n", fsb, mult);
return (fsb * mult);
}
struct cpuinfo_x86 *c = cpu_data;
u32 ebx, msr_lo, msr_hi;
- dprintk("x86: %x, model: %x\n", c->x86, c->x86_model);
-
if ((c->x86_vendor != X86_VENDOR_INTEL) ||
((c->x86 != 6) && (c->x86 != 0xF)))
return 0;
ebx = cpuid_ebx(0x00000001);
ebx &= 0x000000FF;
- dprintk("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask);
+ dprintk(KERN_INFO "ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask);
switch (c->x86_mask) {
case 4:
/* cpuid_ebx(1) is 0x04 for desktop PIII,
0x06 for mobile PIII-M */
ebx = cpuid_ebx(0x00000001);
- dprintk("ebx is %x\n", ebx);
ebx &= 0x000000FF;
/* all mobile PIII Coppermines have FSB 100 MHz
* ==> sort out a few desktop PIIIs. */
rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_hi);
- dprintk("Coppermine: MSR_IA32_EBL_CR_POWERON is 0x%x, 0x%x\n", msr_lo, msr_hi);
+ dprintk(KERN_DEBUG "cpufreq: Coppermine: MSR_IA32_EBL_CR_POWERON is 0x%x, 0x%x\n", msr_lo, msr_hi);
msr_lo &= 0x00c0000;
if (msr_lo != 0x0080000)
return 0;
* bit 56 or 57 is set
*/
rdmsr(MSR_IA32_PLATFORM_ID, msr_lo, msr_hi);
- dprintk("Coppermine: MSR_IA32_PLATFORM ID is 0x%x, 0x%x\n", msr_lo, msr_hi);
+ dprintk(KERN_DEBUG "cpufreq: Coppermine: MSR_IA32_PLATFORM ID is 0x%x, 0x%x\n", msr_lo, msr_hi);
if ((msr_hi & (1<<18)) && (relaxed_check ? 1 : (msr_hi & (3<<24)))) {
- if (c->x86_mask == 0x01) {
- dprintk("early PIII version\n");
+ if (c->x86_mask == 0x01)
return SPEEDSTEP_PROCESSOR_PIII_C_EARLY;
- } else
+ else
return SPEEDSTEP_PROCESSOR_PIII_C;
}
if ((!processor) || (!low_speed) || (!high_speed) || (!set_state))
return -EINVAL;
- dprintk("trying to determine both speeds\n");
-
/* get current speed */
prev_speed = speedstep_get_processor_frequency(processor);
if (!prev_speed)
return -EIO;
-
- dprintk("previous seped is %u\n", prev_speed);
local_irq_save(flags);
goto out;
}
- dprintk("low seped is %u\n", *low_speed);
-
/* switch to high state */
set_state(SPEEDSTEP_HIGH);
*high_speed = speedstep_get_processor_frequency(processor);
goto out;
}
- dprintk("high seped is %u\n", *high_speed);
-
if (*low_speed == *high_speed) {
ret = -ENODEV;
goto out;