diff options
author | Jiri Kosina <jkosina@suse.cz> | 2010-06-16 18:08:13 +0200 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2010-06-16 18:08:13 +0200 |
commit | f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b (patch) | |
tree | c2c130a74be25b0b2dff992e1a195e2728bdaadd /drivers/pci/access.c | |
parent | fd0961ff67727482bb20ca7e8ea97b83e9de2ddb (diff) | |
parent | 7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff) |
Merge branch 'master' into for-next
Diffstat (limited to 'drivers/pci/access.c')
-rw-r--r-- | drivers/pci/access.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/drivers/pci/access.c b/drivers/pci/access.c index 2f646fe1260..531bc697d80 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -13,7 +13,7 @@ * configuration space. */ -static DEFINE_SPINLOCK(pci_lock); +static DEFINE_RAW_SPINLOCK(pci_lock); /* * Wrappers for all PCI configuration access functions. They just check @@ -33,10 +33,10 @@ int pci_bus_read_config_##size \ unsigned long flags; \ u32 data = 0; \ if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER; \ - spin_lock_irqsave(&pci_lock, flags); \ + raw_spin_lock_irqsave(&pci_lock, flags); \ res = bus->ops->read(bus, devfn, pos, len, &data); \ *value = (type)data; \ - spin_unlock_irqrestore(&pci_lock, flags); \ + raw_spin_unlock_irqrestore(&pci_lock, flags); \ return res; \ } @@ -47,9 +47,9 @@ int pci_bus_write_config_##size \ int res; \ unsigned long flags; \ if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER; \ - spin_lock_irqsave(&pci_lock, flags); \ + raw_spin_lock_irqsave(&pci_lock, flags); \ res = bus->ops->write(bus, devfn, pos, len, value); \ - spin_unlock_irqrestore(&pci_lock, flags); \ + raw_spin_unlock_irqrestore(&pci_lock, flags); \ return res; \ } @@ -79,10 +79,10 @@ struct pci_ops *pci_bus_set_ops(struct pci_bus *bus, struct pci_ops *ops) struct pci_ops *old_ops; unsigned long flags; - spin_lock_irqsave(&pci_lock, flags); + raw_spin_lock_irqsave(&pci_lock, flags); old_ops = bus->ops; bus->ops = ops; - spin_unlock_irqrestore(&pci_lock, flags); + raw_spin_unlock_irqrestore(&pci_lock, flags); return old_ops; } EXPORT_SYMBOL(pci_bus_set_ops); @@ -136,9 +136,9 @@ static noinline void pci_wait_ucfg(struct pci_dev *dev) __add_wait_queue(&pci_ucfg_wait, &wait); do { set_current_state(TASK_UNINTERRUPTIBLE); - spin_unlock_irq(&pci_lock); + raw_spin_unlock_irq(&pci_lock); schedule(); - spin_lock_irq(&pci_lock); + raw_spin_lock_irq(&pci_lock); } while (dev->block_ucfg_access); __remove_wait_queue(&pci_ucfg_wait, &wait); } @@ -150,11 +150,11 @@ int pci_user_read_config_##size \ int ret = 0; \ u32 data = -1; \ if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER; \ - spin_lock_irq(&pci_lock); \ + raw_spin_lock_irq(&pci_lock); \ if (unlikely(dev->block_ucfg_access)) pci_wait_ucfg(dev); \ ret = dev->bus->ops->read(dev->bus, dev->devfn, \ pos, sizeof(type), &data); \ - spin_unlock_irq(&pci_lock); \ + raw_spin_unlock_irq(&pci_lock); \ *val = (type)data; \ return ret; \ } @@ -165,11 +165,11 @@ int pci_user_write_config_##size \ { \ int ret = -EIO; \ if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER; \ - spin_lock_irq(&pci_lock); \ + raw_spin_lock_irq(&pci_lock); \ if (unlikely(dev->block_ucfg_access)) pci_wait_ucfg(dev); \ ret = dev->bus->ops->write(dev->bus, dev->devfn, \ pos, sizeof(type), val); \ - spin_unlock_irq(&pci_lock); \ + raw_spin_unlock_irq(&pci_lock); \ return ret; \ } @@ -220,8 +220,13 @@ static int pci_vpd_pci22_wait(struct pci_dev *dev) return 0; } - if (time_after(jiffies, timeout)) + if (time_after(jiffies, timeout)) { + dev_printk(KERN_DEBUG, &dev->dev, + "vpd r/w failed. This is likely a firmware " + "bug on this device. Contact the card " + "vendor for a firmware update."); return -ETIMEDOUT; + } if (fatal_signal_pending(current)) return -EINTR; if (!cond_resched()) @@ -396,10 +401,10 @@ void pci_block_user_cfg_access(struct pci_dev *dev) unsigned long flags; int was_blocked; - spin_lock_irqsave(&pci_lock, flags); + raw_spin_lock_irqsave(&pci_lock, flags); was_blocked = dev->block_ucfg_access; dev->block_ucfg_access = 1; - spin_unlock_irqrestore(&pci_lock, flags); + raw_spin_unlock_irqrestore(&pci_lock, flags); /* If we BUG() inside the pci_lock, we're guaranteed to hose * the machine */ @@ -417,7 +422,7 @@ void pci_unblock_user_cfg_access(struct pci_dev *dev) { unsigned long flags; - spin_lock_irqsave(&pci_lock, flags); + raw_spin_lock_irqsave(&pci_lock, flags); /* This indicates a problem in the caller, but we don't need * to kill them, unlike a double-block above. */ @@ -425,6 +430,6 @@ void pci_unblock_user_cfg_access(struct pci_dev *dev) dev->block_ucfg_access = 0; wake_up_all(&pci_ucfg_wait); - spin_unlock_irqrestore(&pci_lock, flags); + raw_spin_unlock_irqrestore(&pci_lock, flags); } EXPORT_SYMBOL_GPL(pci_unblock_user_cfg_access); |