diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-08-30 16:06:38 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-08-30 16:06:38 -0700 |
commit | 1ac731c529cd4d6adbce134754b51ff7d822b145 (patch) | |
tree | 143ab3f35ca5f3b69f583c84e6964b17139c2ec1 /drivers/pci/pci.c | |
parent | 07b4c950f27bef0362dc6ad7ee713aab61d58149 (diff) | |
parent | 54116d442e001e1b6bd482122043b1870998a1f3 (diff) |
Merge branch 'next' into for-linus
Prepare input updates for 6.6 merge window.
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r-- | drivers/pci/pci.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 7a67611dc5f48..5ede93222bc12 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -64,6 +64,14 @@ struct pci_pme_device { #define PME_TIMEOUT 1000 /* How long between PME checks */ +/* + * Devices may extend the 1 sec period through Request Retry Status + * completions (PCIe r6.0 sec 2.3.1). The spec does not provide an upper + * limit, but 60 sec ought to be enough for any device to become + * responsive. + */ +#define PCIE_RESET_READY_POLL_MS 60000 /* msec */ + static void pci_dev_d3_sleep(struct pci_dev *dev) { unsigned int delay_ms = max(dev->d3hot_delay, pci_pm_d3hot_delay); @@ -779,9 +787,8 @@ struct resource *pci_find_parent_resource(const struct pci_dev *dev, { const struct pci_bus *bus = dev->bus; struct resource *r; - int i; - pci_bus_for_each_resource(bus, r, i) { + pci_bus_for_each_resource(bus, r) { if (!r) continue; if (resource_contains(r, res)) { @@ -4939,7 +4946,6 @@ static int pci_bus_max_d3cold_delay(const struct pci_bus *bus) * pci_bridge_wait_for_secondary_bus - Wait for secondary bus to be accessible * @dev: PCI bridge * @reset_type: reset type in human-readable form - * @timeout: maximum time to wait for devices on secondary bus (milliseconds) * * Handle necessary delays before access to the devices on the secondary * side of the bridge are permitted after D3cold to D0 transition @@ -4952,8 +4958,7 @@ static int pci_bus_max_d3cold_delay(const struct pci_bus *bus) * Return 0 on success or -ENOTTY if the first device on the secondary bus * failed to become accessible. */ -int pci_bridge_wait_for_secondary_bus(struct pci_dev *dev, char *reset_type, - int timeout) +int pci_bridge_wait_for_secondary_bus(struct pci_dev *dev, char *reset_type) { struct pci_dev *child; int delay; @@ -5031,7 +5036,8 @@ int pci_bridge_wait_for_secondary_bus(struct pci_dev *dev, char *reset_type, } } - return pci_dev_wait(child, reset_type, timeout - delay); + return pci_dev_wait(child, reset_type, + PCIE_RESET_READY_POLL_MS - delay); } void pci_reset_secondary_bus(struct pci_dev *dev) @@ -5068,8 +5074,7 @@ int pci_bridge_secondary_bus_reset(struct pci_dev *dev) { pcibios_reset_secondary_bus(dev); - return pci_bridge_wait_for_secondary_bus(dev, "bus reset", - PCIE_RESET_READY_POLL_MS); + return pci_bridge_wait_for_secondary_bus(dev, "bus reset"); } EXPORT_SYMBOL_GPL(pci_bridge_secondary_bus_reset); @@ -6679,7 +6684,7 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev) } } -static ssize_t resource_alignment_show(struct bus_type *bus, char *buf) +static ssize_t resource_alignment_show(const struct bus_type *bus, char *buf) { size_t count = 0; @@ -6691,7 +6696,7 @@ static ssize_t resource_alignment_show(struct bus_type *bus, char *buf) return count; } -static ssize_t resource_alignment_store(struct bus_type *bus, +static ssize_t resource_alignment_store(const struct bus_type *bus, const char *buf, size_t count) { char *param, *old, *end; |