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-rw-r--r--include/linux/pci-ats.h49
-rw-r--r--include/linux/pci.h60
2 files changed, 54 insertions, 55 deletions
diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
index 72031785fe1d..57e0b8250947 100644
--- a/include/linux/pci-ats.h
+++ b/include/linux/pci-ats.h
@@ -3,55 +3,6 @@
#include <linux/pci.h>
-/* Address Translation Service */
-struct pci_ats {
- int pos; /* capability position */
- int stu; /* Smallest Translation Unit */
- int qdep; /* Invalidate Queue Depth */
- int ref_cnt; /* Physical Function reference count */
- unsigned int is_enabled:1; /* Enable bit is set */
-};
-
-#ifdef CONFIG_PCI_ATS
-
-int pci_enable_ats(struct pci_dev *dev, int ps);
-void pci_disable_ats(struct pci_dev *dev);
-int pci_ats_queue_depth(struct pci_dev *dev);
-
-/**
- * pci_ats_enabled - query the ATS status
- * @dev: the PCI device
- *
- * Returns 1 if ATS capability is enabled, or 0 if not.
- */
-static inline int pci_ats_enabled(struct pci_dev *dev)
-{
- return dev->ats && dev->ats->is_enabled;
-}
-
-#else /* CONFIG_PCI_ATS */
-
-static inline int pci_enable_ats(struct pci_dev *dev, int ps)
-{
- return -ENODEV;
-}
-
-static inline void pci_disable_ats(struct pci_dev *dev)
-{
-}
-
-static inline int pci_ats_queue_depth(struct pci_dev *dev)
-{
- return -ENODEV;
-}
-
-static inline int pci_ats_enabled(struct pci_dev *dev)
-{
- return 0;
-}
-
-#endif /* CONFIG_PCI_ATS */
-
#ifdef CONFIG_PCI_PRI
int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 860c751810fc..3c8eb57de620 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -180,6 +180,8 @@ enum pci_dev_flags {
PCI_DEV_FLAGS_NO_BUS_RESET = (__force pci_dev_flags_t) (1 << 6),
/* Do not use PM reset even if device advertises NoSoftRst- */
PCI_DEV_FLAGS_NO_PM_RESET = (__force pci_dev_flags_t) (1 << 7),
+ /* Get VPD from function 0 VPD */
+ PCI_DEV_FLAGS_VPD_REF_F0 = (__force pci_dev_flags_t) (1 << 8),
};
enum pci_irq_reroute_variant {
@@ -343,6 +345,7 @@ struct pci_dev {
unsigned int msi_enabled:1;
unsigned int msix_enabled:1;
unsigned int ari_enabled:1; /* ARI forwarding */
+ unsigned int ats_enabled:1; /* Address Translation Service */
unsigned int is_managed:1;
unsigned int needs_freset:1; /* Dev requires fundamental reset */
unsigned int state_saved:1;
@@ -375,7 +378,9 @@ struct pci_dev {
struct pci_sriov *sriov; /* SR-IOV capability related */
struct pci_dev *physfn; /* the PF this VF is associated with */
};
- struct pci_ats *ats; /* Address Translation Service */
+ u16 ats_cap; /* ATS Capability offset */
+ u8 ats_stu; /* ATS Smallest Translation Unit */
+ atomic_t ats_ref_cnt; /* number of VFs with ATS enabled */
#endif
phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */
size_t romlen; /* Length of ROM if it's not from the BAR */
@@ -446,7 +451,8 @@ struct pci_bus {
struct list_head children; /* list of child buses */
struct list_head devices; /* list of devices on this bus */
struct pci_dev *self; /* bridge device as seen by parent */
- struct list_head slots; /* list of slots on this bus */
+ struct list_head slots; /* list of slots on this bus;
+ protected by pci_slot_mutex */
struct resource *resource[PCI_BRIDGE_RESOURCE_NUM];
struct list_head resources; /* address space routed to this bus */
struct resource busn_res; /* bus numbers routed to this bus */
@@ -738,10 +744,11 @@ struct pci_driver {
void pcie_bus_configure_settings(struct pci_bus *bus);
enum pcie_bus_config_types {
- PCIE_BUS_TUNE_OFF,
- PCIE_BUS_SAFE,
- PCIE_BUS_PERFORMANCE,
- PCIE_BUS_PEER2PEER,
+ PCIE_BUS_TUNE_OFF, /* don't touch MPS at all */
+ PCIE_BUS_DEFAULT, /* ensure MPS matches upstream bridge */
+ PCIE_BUS_SAFE, /* use largest MPS boot-time devices support */
+ PCIE_BUS_PERFORMANCE, /* use MPS and MRRS for best performance */
+ PCIE_BUS_PEER2PEER, /* set MPS = 128 for all devices */
};
extern enum pcie_bus_config_types pcie_bus_config;
@@ -787,6 +794,10 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax);
int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax);
void pci_bus_release_busn_res(struct pci_bus *b);
+struct pci_bus *pci_scan_root_bus_msi(struct device *parent, int bus,
+ struct pci_ops *ops, void *sysdata,
+ struct list_head *resources,
+ struct msi_controller *msi);
struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata,
struct list_head *resources);
@@ -797,6 +808,11 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
const char *name,
struct hotplug_slot *hotplug);
void pci_destroy_slot(struct pci_slot *slot);
+#ifdef CONFIG_SYSFS
+void pci_dev_assign_slot(struct pci_dev *dev);
+#else
+static inline void pci_dev_assign_slot(struct pci_dev *dev) { }
+#endif
int pci_scan_slot(struct pci_bus *bus, int devfn);
struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);
@@ -963,6 +979,23 @@ static inline int pci_is_managed(struct pci_dev *pdev)
return pdev->is_managed;
}
+static inline void pci_set_managed_irq(struct pci_dev *pdev, unsigned int irq)
+{
+ pdev->irq = irq;
+ pdev->irq_managed = 1;
+}
+
+static inline void pci_reset_managed_irq(struct pci_dev *pdev)
+{
+ pdev->irq = 0;
+ pdev->irq_managed = 0;
+}
+
+static inline bool pci_has_managed_irq(struct pci_dev *pdev)
+{
+ return pdev->irq_managed && pdev->irq > 0;
+}
+
void pci_disable_device(struct pci_dev *dev);
extern unsigned int pcibios_max_latency;
@@ -1295,6 +1328,19 @@ int ht_create_irq(struct pci_dev *dev, int idx);
void ht_destroy_irq(unsigned int irq);
#endif /* CONFIG_HT_IRQ */
+#ifdef CONFIG_PCI_ATS
+/* Address Translation Service */
+void pci_ats_init(struct pci_dev *dev);
+int pci_enable_ats(struct pci_dev *dev, int ps);
+void pci_disable_ats(struct pci_dev *dev);
+int pci_ats_queue_depth(struct pci_dev *dev);
+#else
+static inline void pci_ats_init(struct pci_dev *d) { }
+static inline int pci_enable_ats(struct pci_dev *d, int ps) { return -ENODEV; }
+static inline void pci_disable_ats(struct pci_dev *d) { }
+static inline int pci_ats_queue_depth(struct pci_dev *d) { return -ENODEV; }
+#endif
+
void pci_cfg_access_lock(struct pci_dev *dev);
bool pci_cfg_access_trylock(struct pci_dev *dev);
void pci_cfg_access_unlock(struct pci_dev *dev);
@@ -1646,6 +1692,8 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev,
int pcibios_add_device(struct pci_dev *dev);
void pcibios_release_device(struct pci_dev *dev);
void pcibios_penalize_isa_irq(int irq, int active);
+int pcibios_alloc_irq(struct pci_dev *dev);
+void pcibios_free_irq(struct pci_dev *dev);
#ifdef CONFIG_HIBERNATE_CALLBACKS
extern struct dev_pm_ops pcibios_pm_ops;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 17:05:58 +0000