diff options
Diffstat (limited to 'drivers/pci/pci-sysfs.c')
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 2c6643fdc0cf..a62acc443d5b 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -221,12 +221,37 @@ static ssize_t enable_show(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR_RW(enable); #ifdef CONFIG_NUMA +static ssize_t numa_node_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct pci_dev *pdev = to_pci_dev(dev); + int node, ret; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + ret = kstrtoint(buf, 0, &node); + if (ret) + return ret; + + if (!node_online(node)) + return -EINVAL; + + add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK); + dev_alert(&pdev->dev, FW_BUG "Overriding NUMA node to %d. Contact your vendor for updates.", + node); + + dev->numa_node = node; + return count; +} + static ssize_t numa_node_show(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%d\n", dev->numa_node); } -static DEVICE_ATTR_RO(numa_node); +static DEVICE_ATTR_RW(numa_node); #endif static ssize_t dma_mask_bits_show(struct device *dev, @@ -385,7 +410,7 @@ static ssize_t dev_bus_rescan_store(struct device *dev, } static DEVICE_ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, dev_bus_rescan_store); -#if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI) +#if defined(CONFIG_PM) && defined(CONFIG_ACPI) static ssize_t d3cold_allowed_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -566,7 +591,7 @@ static struct attribute *pci_dev_attrs[] = { &dev_attr_enable.attr, &dev_attr_broken_parity_status.attr, &dev_attr_msi_bus.attr, -#if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI) +#if defined(CONFIG_PM) && defined(CONFIG_ACPI) &dev_attr_d3cold_allowed.attr, #endif #ifdef CONFIG_OF |