Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86

* ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (33 commits)
  x86: convert cpuinfo_x86 array to a per_cpu array
  x86: introduce frame_pointer() and stack_pointer()
  x86 & generic: change to __builtin_prefetch()
  i386: do not BUG_ON() when MSR is unknown
  x86: acpi use cpu_physical_id
  x86: convert cpu_llc_id to be a per cpu variable
  x86: convert cpu_to_apicid to be a per cpu variable
  i386: introduce "used_vectors" bitmap which can be used to reserve vectors.
  x86: use raw locks during oopses
  x86: honor _PAGE_PSE bit on page walks
  i386: do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE.
  x86: implement missing x86_64 function smp_call_function_mask()
  x86: use descriptor's functions instead of inline assembly
  i386: consolidate show_regs and show_registers for i386
  i386: make callgraph use dump_trace() on i386/x86_64
  x86: enable iommu_merge by default
  i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.h
  x86: Unify i386 and x86-64 early quirks
  x86: enable HPET on ICH3 and ICH4
  x86: force enable HPET on VT8235/8237 chipsets
  ...

Manually fix trivial conflict with task pid container helper changes in
arch/x86/kernel/process_32.c

1 files changed, 100 insertions, 12 deletions

diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index d769e204f94..a4ce1911efd 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -45,9 +45,12 @@ static void __devinit quirk_intel_irqbalance(struct pci_dev *dev)
 	if (!(config & 0x2))
 		pci_write_config_byte(dev, 0xf4, config);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_E7320_MCH,	quirk_intel_irqbalance);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_E7525_MCH,	quirk_intel_irqbalance);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_E7520_MCH,	quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH,
+			quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH,
+			quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH,
+			quirk_intel_irqbalance);
 #endif
 
 #if defined(CONFIG_HPET_TIMER)
@@ -56,7 +59,8 @@ unsigned long force_hpet_address;
 static enum {
 	NONE_FORCE_HPET_RESUME,
 	OLD_ICH_FORCE_HPET_RESUME,
-	ICH_FORCE_HPET_RESUME
+	ICH_FORCE_HPET_RESUME,
+	VT8237_FORCE_HPET_RESUME
 } force_hpet_resume_type;
 
 static void __iomem *rcba_base;
@@ -146,17 +150,17 @@ static void ich_force_enable_hpet(struct pci_dev *dev)
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0,
-                         ich_force_enable_hpet);
+			 ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1,
-                         ich_force_enable_hpet);
+			 ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0,
-                         ich_force_enable_hpet);
+			 ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1,
-                         ich_force_enable_hpet);
+			 ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31,
-                         ich_force_enable_hpet);
+			 ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1,
-                         ich_force_enable_hpet);
+			 ich_force_enable_hpet);
 
 
 static struct pci_dev *cached_dev;
@@ -232,10 +236,91 @@ static void old_ich_force_enable_hpet(struct pci_dev *dev)
 	printk(KERN_DEBUG "Failed to force enable HPET\n");
 }
 
+/*
+ * Undocumented chipset features. Make sure that the user enforced
+ * this.
+ */
+static void old_ich_force_enable_hpet_user(struct pci_dev *dev)
+{
+	if (hpet_force_user)
+		old_ich_force_enable_hpet(dev);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
+			 old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12,
+			 old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
+			 old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12,
+			 old_ich_force_enable_hpet_user);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0,
-                         old_ich_force_enable_hpet);
+			 old_ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_12,
-                         old_ich_force_enable_hpet);
+			 old_ich_force_enable_hpet);
+
+
+static void vt8237_force_hpet_resume(void)
+{
+	u32 val;
+
+	if (!force_hpet_address || !cached_dev)
+		return;
+
+	val = 0xfed00000 | 0x80;
+	pci_write_config_dword(cached_dev, 0x68, val);
+
+	pci_read_config_dword(cached_dev, 0x68, &val);
+	if (val & 0x80)
+		printk(KERN_DEBUG "Force enabled HPET at resume\n");
+	else
+		BUG();
+}
+
+static void vt8237_force_enable_hpet(struct pci_dev *dev)
+{
+	u32 uninitialized_var(val);
+
+	if (!hpet_force_user || hpet_address || force_hpet_address)
+		return;
+
+	pci_read_config_dword(dev, 0x68, &val);
+	/*
+	 * Bit 7 is HPET enable bit.
+	 * Bit 31:10 is HPET base address (contrary to what datasheet claims)
+	 */
+	if (val & 0x80) {
+		force_hpet_address = (val & ~0x3ff);
+		printk(KERN_DEBUG "HPET at base address 0x%lx\n",
+			       force_hpet_address);
+		return;
+	}
+
+	/*
+	 * HPET is disabled. Trying enabling at FED00000 and check
+	 * whether it sticks
+	 */
+	val = 0xfed00000 | 0x80;
+	pci_write_config_dword(dev, 0x68, val);
+
+	pci_read_config_dword(dev, 0x68, &val);
+	if (val & 0x80) {
+		force_hpet_address = (val & ~0x3ff);
+		printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+			       force_hpet_address);
+		cached_dev = dev;
+		force_hpet_resume_type = VT8237_FORCE_HPET_RESUME;
+		return;
+	}
+
+	printk(KERN_DEBUG "Failed to force enable HPET\n");
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235,
+			 vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
+			 vt8237_force_enable_hpet);
+
 
 void force_hpet_resume(void)
 {
@@ -246,6 +331,9 @@ void force_hpet_resume(void)
 	    case OLD_ICH_FORCE_HPET_RESUME:
 		return old_ich_force_hpet_resume();
 
+	    case VT8237_FORCE_HPET_RESUME:
+		return vt8237_force_hpet_resume();
+
 	    default:
 		break;
 	}