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path: root/drivers/pci/ats.c
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Diffstat (limited to 'drivers/pci/ats.c')
-rw-r--r--drivers/pci/ats.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index e52d7ffa38b9..a8099d4d0c9d 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -235,27 +235,6 @@ void pci_disable_pri(struct pci_dev *pdev)
EXPORT_SYMBOL_GPL(pci_disable_pri);
/**
- * pci_pri_enabled - Checks if PRI capability is enabled
- * @pdev: PCI device structure
- *
- * Returns true if PRI is enabled on the device, false otherwise
- */
-bool pci_pri_enabled(struct pci_dev *pdev)
-{
- u16 control;
- int pos;
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
- if (!pos)
- return false;
-
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
-
- return (control & PCI_PRI_CTRL_ENABLE) ? true : false;
-}
-EXPORT_SYMBOL_GPL(pci_pri_enabled);
-
-/**
* pci_reset_pri - Resets device's PRI state
* @pdev: PCI device structure
*
@@ -282,67 +261,6 @@ int pci_reset_pri(struct pci_dev *pdev)
return 0;
}
EXPORT_SYMBOL_GPL(pci_reset_pri);
-
-/**
- * pci_pri_stopped - Checks whether the PRI capability is stopped
- * @pdev: PCI device structure
- *
- * Returns true if the PRI capability on the device is disabled and the
- * device has no outstanding PRI requests, false otherwise. The device
- * indicates this via the STOPPED bit in the status register of the
- * capability.
- * The device internal state can be cleared by resetting the PRI state
- * with pci_reset_pri(). This can force the capability into the STOPPED
- * state.
- */
-bool pci_pri_stopped(struct pci_dev *pdev)
-{
- u16 control, status;
- int pos;
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
- if (!pos)
- return true;
-
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
-
- if (control & PCI_PRI_CTRL_ENABLE)
- return false;
-
- return (status & PCI_PRI_STATUS_STOPPED) ? true : false;
-}
-EXPORT_SYMBOL_GPL(pci_pri_stopped);
-
-/**
- * pci_pri_status - Request PRI status of a device
- * @pdev: PCI device structure
- *
- * Returns negative value on failure, status on success. The status can
- * be checked against status-bits. Supported bits are currently:
- * PCI_PRI_STATUS_RF: Response failure
- * PCI_PRI_STATUS_UPRGI: Unexpected Page Request Group Index
- * PCI_PRI_STATUS_STOPPED: PRI has stopped
- */
-int pci_pri_status(struct pci_dev *pdev)
-{
- u16 status, control;
- int pos;
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
- if (!pos)
- return -EINVAL;
-
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
-
- /* Stopped bit is undefined when enable == 1, so clear it */
- if (control & PCI_PRI_CTRL_ENABLE)
- status &= ~PCI_PRI_STATUS_STOPPED;
-
- return status;
-}
-EXPORT_SYMBOL_GPL(pci_pri_status);
#endif /* CONFIG_PCI_PRI */
#ifdef CONFIG_PCI_PASID