533 lines
14 KiB
C
533 lines
14 KiB
C
/*
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* This file contains work-arounds for x86 and x86_64 platform bugs.
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*/
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#include <linux/pci.h>
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#include <linux/irq.h>
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#include <asm/hpet.h>
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#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
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static void __devinit quirk_intel_irqbalance(struct pci_dev *dev)
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{
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u8 config, rev;
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u16 word;
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/* BIOS may enable hardware IRQ balancing for
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* E7520/E7320/E7525(revision ID 0x9 and below)
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* based platforms.
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* Disable SW irqbalance/affinity on those platforms.
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*/
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pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev);
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if (rev > 0x9)
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return;
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/* enable access to config space*/
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pci_read_config_byte(dev, 0xf4, &config);
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pci_write_config_byte(dev, 0xf4, config|0x2);
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/*
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* read xTPR register. We may not have a pci_dev for device 8
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* because it might be hidden until the above write.
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*/
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pci_bus_read_config_word(dev->bus, PCI_DEVFN(8, 0), 0x4c, &word);
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if (!(word & (1 << 13))) {
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dev_info(&dev->dev, "Intel E7520/7320/7525 detected; "
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"disabling irq balancing and affinity\n");
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noirqdebug_setup("");
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#ifdef CONFIG_PROC_FS
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no_irq_affinity = 1;
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#endif
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}
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/* put back the original value for config space*/
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if (!(config & 0x2))
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pci_write_config_byte(dev, 0xf4, config);
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH,
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quirk_intel_irqbalance);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH,
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quirk_intel_irqbalance);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH,
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quirk_intel_irqbalance);
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#endif
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#if defined(CONFIG_HPET_TIMER)
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unsigned long force_hpet_address;
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static enum {
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NONE_FORCE_HPET_RESUME,
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OLD_ICH_FORCE_HPET_RESUME,
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ICH_FORCE_HPET_RESUME,
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VT8237_FORCE_HPET_RESUME,
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NVIDIA_FORCE_HPET_RESUME,
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ATI_FORCE_HPET_RESUME,
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} force_hpet_resume_type;
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static void __iomem *rcba_base;
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static void ich_force_hpet_resume(void)
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{
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u32 val;
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if (!force_hpet_address)
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return;
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BUG_ON(rcba_base == NULL);
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/* read the Function Disable register, dword mode only */
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val = readl(rcba_base + 0x3404);
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if (!(val & 0x80)) {
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/* HPET disabled in HPTC. Trying to enable */
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writel(val | 0x80, rcba_base + 0x3404);
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}
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val = readl(rcba_base + 0x3404);
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if (!(val & 0x80))
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BUG();
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else
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printk(KERN_DEBUG "Force enabled HPET at resume\n");
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return;
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}
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static void ich_force_enable_hpet(struct pci_dev *dev)
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{
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u32 val;
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u32 uninitialized_var(rcba);
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int err = 0;
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if (hpet_address || force_hpet_address)
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return;
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pci_read_config_dword(dev, 0xF0, &rcba);
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rcba &= 0xFFFFC000;
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if (rcba == 0) {
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dev_printk(KERN_DEBUG, &dev->dev, "RCBA disabled; "
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"cannot force enable HPET\n");
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return;
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}
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/* use bits 31:14, 16 kB aligned */
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rcba_base = ioremap_nocache(rcba, 0x4000);
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if (rcba_base == NULL) {
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dev_printk(KERN_DEBUG, &dev->dev, "ioremap failed; "
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"cannot force enable HPET\n");
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return;
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}
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/* read the Function Disable register, dword mode only */
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val = readl(rcba_base + 0x3404);
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if (val & 0x80) {
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/* HPET is enabled in HPTC. Just not reported by BIOS */
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val = val & 0x3;
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force_hpet_address = 0xFED00000 | (val << 12);
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dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at "
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"0x%lx\n", force_hpet_address);
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iounmap(rcba_base);
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return;
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}
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/* HPET disabled in HPTC. Trying to enable */
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writel(val | 0x80, rcba_base + 0x3404);
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val = readl(rcba_base + 0x3404);
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if (!(val & 0x80)) {
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err = 1;
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} else {
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val = val & 0x3;
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force_hpet_address = 0xFED00000 | (val << 12);
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}
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if (err) {
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force_hpet_address = 0;
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iounmap(rcba_base);
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dev_printk(KERN_DEBUG, &dev->dev,
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"Failed to force enable HPET\n");
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} else {
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force_hpet_resume_type = ICH_FORCE_HPET_RESUME;
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dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at "
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"0x%lx\n", force_hpet_address);
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}
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7,
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ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x3a16, /* ICH10 */
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ich_force_enable_hpet);
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static struct pci_dev *cached_dev;
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static void hpet_print_force_info(void)
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{
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printk(KERN_INFO "HPET not enabled in BIOS. "
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"You might try hpet=force boot option\n");
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}
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static void old_ich_force_hpet_resume(void)
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{
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u32 val;
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u32 uninitialized_var(gen_cntl);
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if (!force_hpet_address || !cached_dev)
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return;
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pci_read_config_dword(cached_dev, 0xD0, &gen_cntl);
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gen_cntl &= (~(0x7 << 15));
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gen_cntl |= (0x4 << 15);
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pci_write_config_dword(cached_dev, 0xD0, gen_cntl);
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pci_read_config_dword(cached_dev, 0xD0, &gen_cntl);
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val = gen_cntl >> 15;
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val &= 0x7;
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if (val == 0x4)
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printk(KERN_DEBUG "Force enabled HPET at resume\n");
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else
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BUG();
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}
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static void old_ich_force_enable_hpet(struct pci_dev *dev)
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{
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u32 val;
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u32 uninitialized_var(gen_cntl);
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if (hpet_address || force_hpet_address)
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return;
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pci_read_config_dword(dev, 0xD0, &gen_cntl);
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/*
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* Bit 17 is HPET enable bit.
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* Bit 16:15 control the HPET base address.
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*/
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val = gen_cntl >> 15;
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val &= 0x7;
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if (val & 0x4) {
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val &= 0x3;
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force_hpet_address = 0xFED00000 | (val << 12);
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dev_printk(KERN_DEBUG, &dev->dev, "HPET at 0x%lx\n",
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force_hpet_address);
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return;
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}
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/*
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* HPET is disabled. Trying enabling at FED00000 and check
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* whether it sticks
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*/
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gen_cntl &= (~(0x7 << 15));
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gen_cntl |= (0x4 << 15);
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pci_write_config_dword(dev, 0xD0, gen_cntl);
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pci_read_config_dword(dev, 0xD0, &gen_cntl);
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val = gen_cntl >> 15;
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val &= 0x7;
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if (val & 0x4) {
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/* HPET is enabled in HPTC. Just not reported by BIOS */
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val &= 0x3;
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force_hpet_address = 0xFED00000 | (val << 12);
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dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at "
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"0x%lx\n", force_hpet_address);
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cached_dev = dev;
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force_hpet_resume_type = OLD_ICH_FORCE_HPET_RESUME;
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return;
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}
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dev_printk(KERN_DEBUG, &dev->dev, "Failed to force enable HPET\n");
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}
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/*
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* Undocumented chipset features. Make sure that the user enforced
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* this.
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*/
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static void old_ich_force_enable_hpet_user(struct pci_dev *dev)
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{
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if (hpet_force_user)
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old_ich_force_enable_hpet(dev);
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1,
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old_ich_force_enable_hpet_user);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
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old_ich_force_enable_hpet_user);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12,
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old_ich_force_enable_hpet_user);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
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old_ich_force_enable_hpet_user);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12,
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old_ich_force_enable_hpet_user);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0,
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old_ich_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_12,
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old_ich_force_enable_hpet);
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static void vt8237_force_hpet_resume(void)
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{
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u32 val;
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if (!force_hpet_address || !cached_dev)
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return;
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val = 0xfed00000 | 0x80;
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pci_write_config_dword(cached_dev, 0x68, val);
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pci_read_config_dword(cached_dev, 0x68, &val);
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if (val & 0x80)
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printk(KERN_DEBUG "Force enabled HPET at resume\n");
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else
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BUG();
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}
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static void vt8237_force_enable_hpet(struct pci_dev *dev)
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{
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u32 uninitialized_var(val);
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if (hpet_address || force_hpet_address)
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return;
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if (!hpet_force_user) {
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hpet_print_force_info();
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return;
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}
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pci_read_config_dword(dev, 0x68, &val);
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/*
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* Bit 7 is HPET enable bit.
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* Bit 31:10 is HPET base address (contrary to what datasheet claims)
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*/
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if (val & 0x80) {
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force_hpet_address = (val & ~0x3ff);
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dev_printk(KERN_DEBUG, &dev->dev, "HPET at 0x%lx\n",
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force_hpet_address);
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return;
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}
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/*
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* HPET is disabled. Trying enabling at FED00000 and check
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* whether it sticks
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*/
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val = 0xfed00000 | 0x80;
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pci_write_config_dword(dev, 0x68, val);
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pci_read_config_dword(dev, 0x68, &val);
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if (val & 0x80) {
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force_hpet_address = (val & ~0x3ff);
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dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at "
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"0x%lx\n", force_hpet_address);
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cached_dev = dev;
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force_hpet_resume_type = VT8237_FORCE_HPET_RESUME;
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return;
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}
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dev_printk(KERN_DEBUG, &dev->dev, "Failed to force enable HPET\n");
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235,
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vt8237_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
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vt8237_force_enable_hpet);
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static void ati_force_hpet_resume(void)
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{
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pci_write_config_dword(cached_dev, 0x14, 0xfed00000);
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printk(KERN_DEBUG "Force enabled HPET at resume\n");
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}
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static u32 ati_ixp4x0_rev(struct pci_dev *dev)
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{
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u32 d;
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u8 b;
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pci_read_config_byte(dev, 0xac, &b);
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b &= ~(1<<5);
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pci_write_config_byte(dev, 0xac, b);
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pci_read_config_dword(dev, 0x70, &d);
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d |= 1<<8;
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pci_write_config_dword(dev, 0x70, d);
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pci_read_config_dword(dev, 0x8, &d);
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d &= 0xff;
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dev_printk(KERN_DEBUG, &dev->dev, "SB4X0 revision 0x%x\n", d);
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return d;
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}
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static void ati_force_enable_hpet(struct pci_dev *dev)
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{
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u32 d, val;
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u8 b;
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if (hpet_address || force_hpet_address)
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return;
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if (!hpet_force_user) {
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hpet_print_force_info();
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return;
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}
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d = ati_ixp4x0_rev(dev);
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if (d < 0x82)
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return;
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/* base address */
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pci_write_config_dword(dev, 0x14, 0xfed00000);
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pci_read_config_dword(dev, 0x14, &val);
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/* enable interrupt */
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outb(0x72, 0xcd6); b = inb(0xcd7);
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b |= 0x1;
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outb(0x72, 0xcd6); outb(b, 0xcd7);
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outb(0x72, 0xcd6); b = inb(0xcd7);
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if (!(b & 0x1))
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return;
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pci_read_config_dword(dev, 0x64, &d);
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d |= (1<<10);
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pci_write_config_dword(dev, 0x64, d);
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pci_read_config_dword(dev, 0x64, &d);
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if (!(d & (1<<10)))
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return;
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force_hpet_address = val;
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force_hpet_resume_type = ATI_FORCE_HPET_RESUME;
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dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at 0x%lx\n",
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force_hpet_address);
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cached_dev = dev;
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS,
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ati_force_enable_hpet);
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/*
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* Undocumented chipset feature taken from LinuxBIOS.
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*/
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static void nvidia_force_hpet_resume(void)
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{
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pci_write_config_dword(cached_dev, 0x44, 0xfed00001);
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printk(KERN_DEBUG "Force enabled HPET at resume\n");
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}
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static void nvidia_force_enable_hpet(struct pci_dev *dev)
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{
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u32 uninitialized_var(val);
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if (hpet_address || force_hpet_address)
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return;
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if (!hpet_force_user) {
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hpet_print_force_info();
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return;
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}
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pci_write_config_dword(dev, 0x44, 0xfed00001);
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pci_read_config_dword(dev, 0x44, &val);
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force_hpet_address = val & 0xfffffffe;
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force_hpet_resume_type = NVIDIA_FORCE_HPET_RESUME;
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dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at 0x%lx\n",
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force_hpet_address);
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cached_dev = dev;
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return;
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}
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/* ISA Bridges */
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0050,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0051,
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nvidia_force_enable_hpet);
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/* LPC bridges */
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0260,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0360,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0361,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0362,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0363,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0364,
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nvidia_force_enable_hpet);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0365,
|
|
nvidia_force_enable_hpet);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0366,
|
|
nvidia_force_enable_hpet);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0367,
|
|
nvidia_force_enable_hpet);
|
|
|
|
void force_hpet_resume(void)
|
|
{
|
|
switch (force_hpet_resume_type) {
|
|
case ICH_FORCE_HPET_RESUME:
|
|
ich_force_hpet_resume();
|
|
return;
|
|
case OLD_ICH_FORCE_HPET_RESUME:
|
|
old_ich_force_hpet_resume();
|
|
return;
|
|
case VT8237_FORCE_HPET_RESUME:
|
|
vt8237_force_hpet_resume();
|
|
return;
|
|
case NVIDIA_FORCE_HPET_RESUME:
|
|
nvidia_force_hpet_resume();
|
|
return;
|
|
case ATI_FORCE_HPET_RESUME:
|
|
ati_force_hpet_resume();
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_PCI) && defined(CONFIG_NUMA)
|
|
/* Set correct numa_node information for AMD NB functions */
|
|
static void __init quirk_amd_nb_node(struct pci_dev *dev)
|
|
{
|
|
struct pci_dev *nb_ht;
|
|
unsigned int devfn;
|
|
u32 val;
|
|
|
|
devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 0);
|
|
nb_ht = pci_get_slot(dev->bus, devfn);
|
|
if (!nb_ht)
|
|
return;
|
|
|
|
pci_read_config_dword(nb_ht, 0x60, &val);
|
|
set_dev_node(&dev->dev, val & 7);
|
|
pci_dev_put(dev);
|
|
}
|
|
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_ADDRMAP,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MEMCTL,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_HT,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MAP,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_DRAM,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC,
|
|
quirk_amd_nb_node);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_LINK,
|
|
quirk_amd_nb_node);
|
|
#endif
|