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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 03:40:35 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 03:40:35 -0400
commitf0b364a13d7fba001c0571d954f165dfaf5f434a (patch)
tree9cd8bf4e800295e5dbf279e63b9793223fd20577 /arch
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
Diffstat (limited to 'arch')
-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
3 files changed, 41 insertions, 24 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)
396 */ 396 */
397static int bios_with_sw_any_bug; 397static int bios_with_sw_any_bug;
398 398
399static int __init sw_any_bug_found(struct dmi_system_id *d) 399static int sw_any_bug_found(struct dmi_system_id *d)
400{ 400{
401 bios_with_sw_any_bug = 1; 401 bios_with_sw_any_bug = 1;
402 return 0; 402 return 0;
403} 403}
404 404
405static struct dmi_system_id __initdata sw_any_bug_dmi_table[] = { 405static struct dmi_system_id sw_any_bug_dmi_table[] = {
406 { 406 {
407 .callback = sw_any_bug_found, 407 .callback = sw_any_bug_found,
408 .ident = "Supermicro Server X6DLP", 408 .ident = "Supermicro Server X6DLP",
@@ -597,7 +597,6 @@ static struct cpufreq_driver acpi_cpufreq_driver = {
597 .name = "acpi-cpufreq", 597 .name = "acpi-cpufreq",
598 .owner = THIS_MODULE, 598 .owner = THIS_MODULE,
599 .attr = acpi_cpufreq_attr, 599 .attr = acpi_cpufreq_attr,
600 .flags = CPUFREQ_STICKY,
601}; 600};
602 601
603 602
@@ -608,7 +607,7 @@ acpi_cpufreq_init (void)
608 607
609 acpi_cpufreq_early_init_acpi(); 608 acpi_cpufreq_early_init_acpi();
610 609
611 return cpufreq_register_driver(&acpi_cpufreq_driver); 610 return cpufreq_register_driver(&acpi_cpufreq_driver);
612} 611}
613 612
614 613
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)
178 safe_halt(); 178 safe_halt();
179 /* Change frequency on next halt or sleep */ 179 /* Change frequency on next halt or sleep */
180 wrmsrl(MSR_VIA_LONGHAUL, longhaul.val); 180 wrmsrl(MSR_VIA_LONGHAUL, longhaul.val);
181 ACPI_FLUSH_CPU_CACHE(); 181 if (port22_en) {
182 /* Invoke C3 */ 182 ACPI_FLUSH_CPU_CACHE();
183 inb(cx_address); 183 /* Invoke C1 */
184 /* Dummy op - must do something useless after P_LVL3 read */ 184 halt();
185 t = inl(acpi_fadt.xpm_tmr_blk.address); 185 } else {
186 ACPI_FLUSH_CPU_CACHE();
187 /* Invoke C3 */
188 inb(cx_address);
189 /* Dummy op - must do something useless after P_LVL3 read */
190 t = inl(acpi_fadt.xpm_tmr_blk.address);
191 }
186 192
187 /* Disable bus ratio bit */ 193 /* Disable bus ratio bit */
188 local_irq_disable(); 194 local_irq_disable();
@@ -567,16 +573,23 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle,
567static int enable_arbiter_disable(void) 573static int enable_arbiter_disable(void)
568{ 574{
569 struct pci_dev *dev; 575 struct pci_dev *dev;
576 int reg;
570 u8 pci_cmd; 577 u8 pci_cmd;
571 578
572 /* Find PLE133 host bridge */ 579 /* Find PLE133 host bridge */
580 reg = 0x78;
573 dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, NULL); 581 dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, NULL);
582 /* Find CLE266 host bridge */
583 if (dev == NULL) {
584 reg = 0x76;
585 dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_862X_0, NULL);
586 }
574 if (dev != NULL) { 587 if (dev != NULL) {
575 /* Enable access to port 0x22 */ 588 /* Enable access to port 0x22 */
576 pci_read_config_byte(dev, 0x78, &pci_cmd); 589 pci_read_config_byte(dev, reg, &pci_cmd);
577 if ( !(pci_cmd & 1<<7) ) { 590 if ( !(pci_cmd & 1<<7) ) {
578 pci_cmd |= 1<<7; 591 pci_cmd |= 1<<7;
579 pci_write_config_byte(dev, 0x78, pci_cmd); 592 pci_write_config_byte(dev, reg, pci_cmd);
580 } 593 }
581 return 1; 594 return 1;
582 } 595 }
@@ -680,20 +693,25 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
680 if (longhaul_version == TYPE_POWERSAVER) { 693 if (longhaul_version == TYPE_POWERSAVER) {
681 /* Check ACPI support for C3 state */ 694 /* Check ACPI support for C3 state */
682 cx = &pr->power.states[ACPI_STATE_C3]; 695 cx = &pr->power.states[ACPI_STATE_C3];
683 if (cx->address == 0 || 696 if (cx->address > 0 &&
684 (cx->latency > 1000 && ignore_latency == 0) ) 697 (cx->latency <= 1000 || ignore_latency != 0) ) {
698 goto print_support_type;
699 }
700 }
701 /* Check ACPI support for bus master arbiter disable */
702 if (!pr->flags.bm_control) {
703 if (enable_arbiter_disable()) {
704 port22_en = 1;
705 } else {
685 goto err_acpi; 706 goto err_acpi;
686
687 } else {
688 /* Check ACPI support for bus master arbiter disable */
689 if (!pr->flags.bm_control) {
690 if (!enable_arbiter_disable()) {
691 printk(KERN_ERR PFX "No ACPI support. No VT8601 host bridge. Aborting.\n");
692 return -ENODEV;
693 } else
694 port22_en = 1;
695 } 707 }
696 } 708 }
709print_support_type:
710 if (!port22_en) {
711 printk (KERN_INFO PFX "Using ACPI support.\n");
712 } else {
713 printk (KERN_INFO PFX "Using northbridge support.\n");
714 }
697 715
698 ret = longhaul_get_ranges(); 716 ret = longhaul_get_ranges();
699 if (ret != 0) 717 if (ret != 0)
@@ -716,7 +734,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
716 return 0; 734 return 0;
717 735
718err_acpi: 736err_acpi:
719 printk(KERN_ERR PFX "No ACPI support for CPU frequency changes.\n"); 737 printk(KERN_ERR PFX "No ACPI support. No VT8601 or VT8623 northbridge. Aborting.\n");
720 return -ENODEV; 738 return -ENODEV;
721} 739}
722 740
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)
386 * than OS intended it to run at. Detect it and handle it cleanly. 386 * than OS intended it to run at. Detect it and handle it cleanly.
387 */ 387 */
388static int bios_with_sw_any_bug; 388static int bios_with_sw_any_bug;
389static int __init sw_any_bug_found(struct dmi_system_id *d) 389static int sw_any_bug_found(struct dmi_system_id *d)
390{ 390{
391 bios_with_sw_any_bug = 1; 391 bios_with_sw_any_bug = 1;
392 return 0; 392 return 0;