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Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

Browse source 
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Make acpi-cpufreq unsticky again.
  [CPUFREQ] longhaul: remove duplicated code.
  [CPUFREQ] Longhaul - Disable arbiter CLE266
  [CPUFREQ] Fix section mismatch warning
  [CPUFREQ] Fix cut-n-paste bug in suspend printk
This commit is contained in:
Linus Torvalds 2006-10-01 00:40:35 -07:00
commit f0b364a13d
4 changed files with 43 additions and 26 deletions
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7
arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
View file

@ -396,13 +396,13 @@ static int acpi_cpufreq_early_init_acpi(void)
*/
static int bios_with_sw_any_bug;
static int __init sw_any_bug_found(struct dmi_system_id *d)
static int sw_any_bug_found(struct dmi_system_id *d)
{
bios_with_sw_any_bug = 1;
return 0;
}
static struct dmi_system_id __initdata sw_any_bug_dmi_table[] = {
static struct dmi_system_id sw_any_bug_dmi_table[] = {
{
.callback = sw_any_bug_found,
.ident = "Supermicro Server X6DLP",
@ -597,7 +597,6 @@ static struct cpufreq_driver acpi_cpufreq_driver = {
.name = "acpi-cpufreq",
.owner = THIS_MODULE,
.attr = acpi_cpufreq_attr,
.flags = CPUFREQ_STICKY,
};
@ -608,7 +607,7 @@ acpi_cpufreq_init (void)
acpi_cpufreq_early_init_acpi();
return cpufreq_register_driver(&acpi_cpufreq_driver);
return cpufreq_register_driver(&acpi_cpufreq_driver);
}

58
arch/i386/kernel/cpu/cpufreq/longhaul.c
View file

@ -178,11 +178,17 @@ static void do_powersaver(int cx_address, unsigned int clock_ratio_index)
safe_halt();
/* Change frequency on next halt or sleep */
wrmsrl(MSR_VIA_LONGHAUL, longhaul.val);
ACPI_FLUSH_CPU_CACHE();
/* Invoke C3 */
inb(cx_address);
/* Dummy op - must do something useless after P_LVL3 read */
t = inl(acpi_fadt.xpm_tmr_blk.address);
if (port22_en) {
ACPI_FLUSH_CPU_CACHE();
/* Invoke C1 */
halt();
} else {
ACPI_FLUSH_CPU_CACHE();
/* Invoke C3 */
inb(cx_address);
/* Dummy op - must do something useless after P_LVL3 read */
t = inl(acpi_fadt.xpm_tmr_blk.address);
}
/* Disable bus ratio bit */
local_irq_disable();
@ -567,16 +573,23 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle,
static int enable_arbiter_disable(void)
{
struct pci_dev *dev;
int reg;
u8 pci_cmd;
/* Find PLE133 host bridge */
reg = 0x78;
dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, NULL);
/* Find CLE266 host bridge */
if (dev == NULL) {
reg = 0x76;
dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_862X_0, NULL);
}
if (dev != NULL) {
/* Enable access to port 0x22 */
pci_read_config_byte(dev, 0x78, &pci_cmd);
pci_read_config_byte(dev, reg, &pci_cmd);
if ( !(pci_cmd & 1<<7) ) {
pci_cmd |= 1<<7;
pci_write_config_byte(dev, 0x78, pci_cmd);
pci_write_config_byte(dev, reg, pci_cmd);
}
return 1;
}
@ -680,20 +693,25 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
if (longhaul_version == TYPE_POWERSAVER) {
/* Check ACPI support for C3 state */
cx = &pr->power.states[ACPI_STATE_C3];
if (cx->address == 0 ||
(cx->latency > 1000 && ignore_latency == 0) )
goto err_acpi;
} else {
/* Check ACPI support for bus master arbiter disable */
if (!pr->flags.bm_control) {
if (!enable_arbiter_disable()) {
printk(KERN_ERR PFX "No ACPI support. No VT8601 host bridge. Aborting.\n");
return -ENODEV;
} else
port22_en = 1;
if (cx->address > 0 &&
(cx->latency <= 1000 || ignore_latency != 0) ) {
goto print_support_type;
}
}
/* Check ACPI support for bus master arbiter disable */
if (!pr->flags.bm_control) {
if (enable_arbiter_disable()) {
port22_en = 1;
} else {
goto err_acpi;
}
}
print_support_type:
if (!port22_en) {
printk (KERN_INFO PFX "Using ACPI support.\n");
} else {
printk (KERN_INFO PFX "Using northbridge support.\n");
}
ret = longhaul_get_ranges();
if (ret != 0)
@ -716,7 +734,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
return 0;
err_acpi:
printk(KERN_ERR PFX "No ACPI support for CPU frequency changes.\n");
printk(KERN_ERR PFX "No ACPI support. No VT8601 or VT8623 northbridge. Aborting.\n");
return -ENODEV;
}

2
arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
View file

@ -386,7 +386,7 @@ static int centrino_cpu_early_init_acpi(void)
* than OS intended it to run at. Detect it and handle it cleanly.
*/
static int bios_with_sw_any_bug;
static int __init sw_any_bug_found(struct dmi_system_id *d)
static int sw_any_bug_found(struct dmi_system_id *d)
{
bios_with_sw_any_bug = 1;
return 0;

2
drivers/cpufreq/cpufreq.c
View file

@ -994,7 +994,7 @@ static int cpufreq_suspend(struct sys_device * sysdev, pm_message_t pmsg)
unsigned int cur_freq = 0;
struct cpufreq_policy *cpu_policy;
dprintk("resuming cpu %u\n", cpu);
dprintk("suspending cpu %u\n", cpu);
if (!cpu_online(cpu))
return 0;