diff options
| author | Ingo Molnar <mingo@kernel.org> | 2014-02-02 09:45:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-02-02 09:45:39 +0100 |
| commit | eaa4e4fcf1b5c60e656d93242f7fe422173f25b2 (patch) | |
| tree | c05d5d6ca3f625d72a9d136b4c485d3dc9472089 /drivers/pci/ats.c | |
| parent | be1e4e760d940c14d119bffef5eb007dfdf29046 (diff) | |
| parent | 5cb480f6b488128140c940abff3c36f524a334a8 (diff) | |
Merge branch 'linus' into sched/core, to resolve conflicts
Conflicts:
kernel/sysctl.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/pci/ats.c')
| -rw-r--r-- | drivers/pci/ats.c | 82 |
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 |
