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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:40:35 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:40:35 -0700
commitf0b364a13d7fba001c0571d954f165dfaf5f434a (patch)
tree9cd8bf4e800295e5dbf279e63b9793223fd20577
parent5a73fdc5ea836d2edc5e02890b51185fe304d7d3 (diff)
parentbfeeb0f57940b143a55dcc7ee88e8842108d9145 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
* 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
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c7
-rw-r--r--arch/i386/kernel/cpu/cpufreq/longhaul.c56
-rw-r--r--arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c2
-rw-r--r--drivers/cpufreq/cpufreq.c2
4 files changed, 42 insertions, 25 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index ea19d091fd41..57c880bf0bd6 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -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);
}
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c
index f5cc9f5c9bab..7233abe5d695 100644
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -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) )
+ 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;
-
- } 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;
}
}
+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;
}
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index 7a9325349e94..e8993baf3d14 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -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;
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index d35a9f06ab7b..2caaf71d80c8 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -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;

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