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Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h66
1 files changed, 59 insertions, 7 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1d4eb6057..e90eb22de 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -345,6 +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;
@@ -368,7 +369,6 @@ struct pci_dev {
struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */
#ifdef CONFIG_PCI_MSI
- struct list_head msi_list;
const struct attribute_group **msi_irq_groups;
#endif
struct pci_vpd *vpd;
@@ -377,7 +377,9 @@ 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 */
@@ -448,7 +450,8 @@ 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 */
@@ -740,10 +743,11 @@ 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;
@@ -789,6 +793,10 @@ 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);
@@ -799,6 +807,11 @@ 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);
@@ -965,6 +978,23 @@ 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;
@@ -1197,6 +1227,8 @@ int pci_set_vga_state(struct pci_dev *pdev, bool decode,
dma_pool_create(name, &pdev->dev, size, align, allocation)
#define pci_pool_destroy(pool) dma_pool_destroy(pool)
#define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
+#define pci_pool_zalloc(pool, flags, handle) \
+ dma_pool_zalloc(pool, flags, handle)
#define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)
struct msix_entry {
@@ -1297,6 +1329,19 @@ 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);
@@ -1648,6 +1693,8 @@ 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;
@@ -1664,6 +1711,7 @@ static inline void pci_mmcfg_late_init(void) { }
int pci_ext_cfg_avail(void);
void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar);
+void __iomem *pci_ioremap_wc_bar(struct pci_dev *pdev, int bar);
#ifdef CONFIG_PCI_IOV
int pci_iov_virtfn_bus(struct pci_dev *dev, int id);
@@ -1845,10 +1893,12 @@ int pci_vpd_find_info_keyword(const u8 *buf, unsigned int off,
/* PCI <-> OF binding helpers */
#ifdef CONFIG_OF
struct device_node;
+struct irq_domain;
void pci_set_of_node(struct pci_dev *dev);
void pci_release_of_node(struct pci_dev *dev);
void pci_set_bus_of_node(struct pci_bus *bus);
void pci_release_bus_of_node(struct pci_bus *bus);
+struct irq_domain *pci_host_bridge_of_msi_domain(struct pci_bus *bus);
/* Arch may override this (weak) */
struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus);
@@ -1871,6 +1921,8 @@ static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
static inline void pci_release_bus_of_node(struct pci_bus *bus) { }
static inline struct device_node *
pci_device_to_OF_node(const struct pci_dev *pdev) { return NULL; }
+static inline struct irq_domain *
+pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; }
#endif /* CONFIG_OF */
#ifdef CONFIG_EEH
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-05 20:40:25 +0000