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authorBjorn Helgaas <bhelgaas@google.com>2023-04-20 16:19:37 -0500
committerBjorn Helgaas <bhelgaas@google.com>2023-04-20 16:19:37 -0500
commit09a8e5f01dfb30667a8f05e35c1cc073cb4fd134 (patch)
tree1489a273a1e8a37b4a3eff70fc527a9b6b0f3299 /include
parentfe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff)
parentab072a3bfa0e9f3747c22ff869541f11263b636c (diff)
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Merge branch 'pci/controller/kconfig'
- Use uniform language in Kconfig menu entries (Bjorn Helgaas) - Sort controller Kconfig entries by vendor (Bjorn Helgaas) * pci/controller/kconfig: PCI: xilinx: Drop obsolete dependency on COMPILE_TEST PCI: mobiveil: Sort Kconfig entries by vendor PCI: dwc: Sort Kconfig entries by vendor PCI: Sort controller Kconfig entries by vendor PCI: Use consistent controller Kconfig menu entry language PCI: xilinx-nwl: Add 'Xilinx' to Kconfig prompt PCI: hv: Add 'Microsoft' to Kconfig prompt PCI: meson: Add 'Amlogic' to Kconfig prompt PCI: Use of_property_present() for testing DT property presence PCI/PM: Extend D3hot delay for NVIDIA HDA controllers dt-bindings: PCI: qcom: Document msi-map and msi-map-mask properties PCI: qcom: Add SM8550 PCIe support dt-bindings: PCI: qcom: Add SM8550 compatible PCI: qcom: Add support for SDX55 SoC dt-bindings: PCI: qcom-ep: Fix the unit address used in example dt-bindings: PCI: qcom: Add SDX55 SoC dt-bindings: PCI: qcom: Update maintainers entry PCI: qcom: Enable async probe by default PCI: qcom: Add support for system suspend and resume PCI/PM: Drop pci_bridge_wait_for_secondary_bus() timeout parameter PCI/PM: Increase wait time after resume PCI: pciehp: Fix AB-BA deadlock between reset_lock and device_lock PCI: Fix up L1SS capability for Intel Apollo Lake Root Port PCI: qcom: Expose link transition counts via debugfs dt-bindings: PCI: qcom: Add "mhi" register region to supported SoCs PCI: qcom: Rename qcom_pcie_config_sid_sm8250() to reflect IP version PCI: qcom: Use macros for defining total no. of clocks & supplies PCI: qcom: Use bulk reset APIs for handling resets for IP rev 2.4.0 PCI: qcom: Use bulk reset APIs for handling resets for IP rev 2.3.3 PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 2.3.3 PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 2.3.2 PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 1.0.0 PCI: qcom: Use bulk reset APIs for handling resets for IP rev 2.1.0 PCI: qcom: Use lower case for hex PCI: qcom: Add missing macros for register fields PCI: qcom: Use bitfield definitions for register fields PCI: qcom: Sort and group registers and bitfield definitions PCI: qcom: Remove PCIE20_ prefix from register definitions PCI: qcom: Fix the incorrect register usage in v2.7.0 config PCI/EDR: Add edr_handle_event() comments PCI/EDR: Clear Device Status after EDR error recovery efi/cper: Remove unnecessary aer.h include dt-bindings: imx6q-pcie: Restruct i.MX PCIe schema PCI/P2PDMA: Fix pci_p2pmem_find_many() kernel-doc EISA: Drop unused pci_bus_for_each_resource() index argument PCI: Make pci_bus_for_each_resource() index optional PCI: Document pci_bus_for_each_resource() PCI: Introduce pci_dev_for_each_resource() PCI: Introduce pci_resource_n() PCI: ixp4xx: Use PCI_CONF1_ADDRESS() macro PCI: mt7621: Use dev_info() to log PCIe card detection PCI: imx6: Install the fault handler only on compatible match PCI: layerscape: Add EP mode support for ls1028a PCI: rcar: Avoid defines prefixed with CONFIG dt-bindings: PCI: convert amlogic,meson-pcie.txt to dt-schema PCI: kirin: Select REGMAP_MMIO
Diffstat (limited to 'include')
-rw-r--r--include/linux/pci.h71
1 files changed, 59 insertions, 12 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index fafd8020c6d7..c048e70d42b9 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1444,10 +1444,44 @@ int devm_request_pci_bus_resources(struct device *dev,
/* Temporary until new and working PCI SBR API in place */
int pci_bridge_secondary_bus_reset(struct pci_dev *dev);
-#define pci_bus_for_each_resource(bus, res, i) \
- for (i = 0; \
- (res = pci_bus_resource_n(bus, i)) || i < PCI_BRIDGE_RESOURCE_NUM; \
- i++)
+#define __pci_bus_for_each_res0(bus, res, ...) \
+ for (unsigned int __b = 0; \
+ (res = pci_bus_resource_n(bus, __b)) || __b < PCI_BRIDGE_RESOURCE_NUM; \
+ __b++)
+
+#define __pci_bus_for_each_res1(bus, res, __b) \
+ for (__b = 0; \
+ (res = pci_bus_resource_n(bus, __b)) || __b < PCI_BRIDGE_RESOURCE_NUM; \
+ __b++)
+
+/**
+ * pci_bus_for_each_resource - iterate over PCI bus resources
+ * @bus: the PCI bus
+ * @res: pointer to the current resource
+ * @...: optional index of the current resource
+ *
+ * Iterate over PCI bus resources. The first part is to go over PCI bus
+ * resource array, which has at most the %PCI_BRIDGE_RESOURCE_NUM entries.
+ * After that continue with the separate list of the additional resources,
+ * if not empty. That's why the Logical OR is being used.
+ *
+ * Possible usage:
+ *
+ * struct pci_bus *bus = ...;
+ * struct resource *res;
+ * unsigned int i;
+ *
+ * // With optional index
+ * pci_bus_for_each_resource(bus, res, i)
+ * pr_info("PCI bus resource[%u]: %pR\n", i, res);
+ *
+ * // Without index
+ * pci_bus_for_each_resource(bus, res)
+ * _do_something_(res);
+ */
+#define pci_bus_for_each_resource(bus, res, ...) \
+ CONCATENATE(__pci_bus_for_each_res, COUNT_ARGS(__VA_ARGS__)) \
+ (bus, res, __VA_ARGS__)
int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
struct resource *res, resource_size_t size,
@@ -1994,14 +2028,27 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma);
* These helpers provide future and backwards compatibility
* for accessing popular PCI BAR info
*/
-#define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start)
-#define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end)
-#define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags)
-#define pci_resource_len(dev,bar) \
- ((pci_resource_end((dev), (bar)) == 0) ? 0 : \
- \
- (pci_resource_end((dev), (bar)) - \
- pci_resource_start((dev), (bar)) + 1))
+#define pci_resource_n(dev, bar) (&(dev)->resource[(bar)])
+#define pci_resource_start(dev, bar) (pci_resource_n(dev, bar)->start)
+#define pci_resource_end(dev, bar) (pci_resource_n(dev, bar)->end)
+#define pci_resource_flags(dev, bar) (pci_resource_n(dev, bar)->flags)
+#define pci_resource_len(dev,bar) \
+ (pci_resource_end((dev), (bar)) ? \
+ resource_size(pci_resource_n((dev), (bar))) : 0)
+
+#define __pci_dev_for_each_res0(dev, res, ...) \
+ for (unsigned int __b = 0; \
+ res = pci_resource_n(dev, __b), __b < PCI_NUM_RESOURCES; \
+ __b++)
+
+#define __pci_dev_for_each_res1(dev, res, __b) \
+ for (__b = 0; \
+ res = pci_resource_n(dev, __b), __b < PCI_NUM_RESOURCES; \
+ __b++)
+
+#define pci_dev_for_each_resource(dev, res, ...) \
+ CONCATENATE(__pci_dev_for_each_res, COUNT_ARGS(__VA_ARGS__)) \
+ (dev, res, __VA_ARGS__)
/*
* Similar to the helpers above, these manipulate per-pci_dev