diff options
| author | Keith Busch <keith.busch@intel.com> | 2016-09-27 23:23:34 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-09-28 00:01:49 +0300 |
| commit | 66b808099146166c44157600a166c8372172cd76 (patch) | |
| tree | 6dfd3e4ab300a3a3d07a6d546f8a1404c5d0f105 /drivers/pci/pcie/aer/aerdrv.c | |
| parent | 4b202b716e4e282c26c4a95952ea33e318c363ab (diff) | |
| download | linux-66b808099146166c44157600a166c8372172cd76.tar.xz | |
PCI/AER: Cache capability position
Save the position of the error reporting capability so it doesn't need to
be rediscovered during error handling.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Lukas Wunner <lukas@wunner.de>
Diffstat (limited to 'drivers/pci/pcie/aer/aerdrv.c')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index 08ce257077db..e99efaa723d5 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -134,7 +134,7 @@ static void aer_enable_rootport(struct aer_rpc *rpc) pcie_capability_clear_word(pdev, PCI_EXP_RTCTL, SYSTEM_ERROR_INTR_ON_MESG_MASK); - aer_pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR); + aer_pos = pdev->aer_cap; /* Clear error status */ pci_read_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, ®32); pci_write_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, reg32); @@ -173,7 +173,7 @@ static void aer_disable_rootport(struct aer_rpc *rpc) */ set_downstream_devices_error_reporting(pdev, false); - pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR); + pos = pdev->aer_cap; /* Disable Root's interrupt in response to error messages */ pci_read_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, ®32); reg32 &= ~ROOT_PORT_INTR_ON_MESG_MASK; @@ -200,7 +200,7 @@ irqreturn_t aer_irq(int irq, void *context) unsigned long flags; int pos; - pos = pci_find_ext_capability(pdev->port, PCI_EXT_CAP_ID_ERR); + pos = pdev->port->aer_cap; /* * Must lock access to Root Error Status Reg, Root Error ID Reg, * and Root error producer/consumer index @@ -338,7 +338,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev) u32 reg32; int pos; - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + pos = dev->aer_cap; /* Disable Root's interrupt in response to error messages */ pci_read_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, ®32); @@ -391,7 +391,7 @@ static void aer_error_resume(struct pci_dev *dev) pcie_capability_write_word(dev, PCI_EXP_DEVSTA, reg16); /* Clean AER Root Error Status */ - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + pos = dev->aer_cap; pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask); if (dev->error_state == pci_channel_io_normal) |