![Linus Torvalds](/assets/img/avatar_default.png)
- Numerous minor fixes, cleanups etc. - More EEH work from Gavin to remove its dependency on device_nodes. - Memory hotplug implemented entirely in the kernel from Nathan Fontenot. - Removal of redundant CONFIG_PPC_OF by Kevin Hao. - Rewrite of VPHN parsing logic & tests from Greg Kurz. - A fix from Nish Aravamudan to reduce memory usage by clamping nodes_possible_map. - Support for pstore on powernv from Hari Bathini. - Removal of old powerpc specific byte swap routines by David Gibson. - Fix from Vasant Hegde to prevent the flash driver telling you it was flashing your firmware when it wasn't. - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver. - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek. - Some fixes for migration from Tyrel Datwyler. - A new syscall to switch the cpu endian by Michael Ellerman. - Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn. - A fix for the OPAL sensor driver from Cédric Le Goater. - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman. - Large series from Daniel Axtens to make our PCI hooks per PHB rather than per machine. - Small patch from Sam Bobroff to explicitly abort non-suspended transactions on syscalls, plus a test to exercise it. - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu. - Small patch to enable the hard lockup detector from Anton Blanchard. - Fix from Dave Olson for missing L2 cache information on some CPUs. - Some fixes from Michael Ellerman to get Cell machines booting again. - Freescale updates from Scott: Highlights include BMan device tree nodes, an MSI erratum workaround, a couple minor performance improvements, config updates, and misc fixes/cleanup. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJVL2cxAAoJEFHr6jzI4aWAR8cP/19VTo/CzCE4ffPSx7qR464n F+WFZcbNjIMXu6+B0YLuJZEsuWtKKrCit/MCg3+mSgE4iqvxmtI+HDD0445Buszj UD4E4HMdPrXQ+KUSUDORvRjv/FFUXIa94LSv/0g2UeMsPz/HeZlhMxEu7AkXw9Nf rTxsmRTsOWME85Y/c9ss7XHuWKXT3DJV7fOoK9roSaN3dJAuWTtG3WaKS0nUu0ok 0M81D6ZczoD6ybwh2DUMPD9K6SGxLdQ4OzQwtW6vWzcQIBDfy5Pdeo0iAFhGPvXf T4LLPkv4cF4AwHsAC4rKDPHQNa+oZBoLlScrHClaebAlDiv+XYKNdMogawUObvSh h7avKmQr0Ygp1OvvZAaXLhuDJI9FJJ8lf6AOIeULgHsDR9SyKMjZWxRzPe11uarO Fyi0qj3oJaQu6LjazZraApu8mo+JBtQuD3z3o5GhLxeFtBBF60JXj6zAXJikufnl kk1/BUF10nKUhtKcDX767AMUCtMH3fp5hx8K/z9T5v+pobJB26Wup1bbdT68pNBT NjdKUppV6QTjZvCsA6U2/ECu6E9KeIaFtFSL2IRRoiI0dWBN5/5eYn3RGkO2ZFoL 1NdwKA2XJcchwTPkpSRrUG70sYH0uM2AldNYyaLfjzrQqza7Y6lF699ilxWmCN/H OplzJAE5cQ8Am078veTW =03Yh -----END PGP SIGNATURE----- Merge tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux Pull powerpc updates from Michael Ellerman: - Numerous minor fixes, cleanups etc. - More EEH work from Gavin to remove its dependency on device_nodes. - Memory hotplug implemented entirely in the kernel from Nathan Fontenot. - Removal of redundant CONFIG_PPC_OF by Kevin Hao. - Rewrite of VPHN parsing logic & tests from Greg Kurz. - A fix from Nish Aravamudan to reduce memory usage by clamping nodes_possible_map. - Support for pstore on powernv from Hari Bathini. - Removal of old powerpc specific byte swap routines by David Gibson. - Fix from Vasant Hegde to prevent the flash driver telling you it was flashing your firmware when it wasn't. - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver. - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek. - Some fixes for migration from Tyrel Datwyler. - A new syscall to switch the cpu endian by Michael Ellerman. - Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn. - A fix for the OPAL sensor driver from Cédric Le Goater. - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman. - Large series from Daniel Axtens to make our PCI hooks per PHB rather than per machine. - Small patch from Sam Bobroff to explicitly abort non-suspended transactions on syscalls, plus a test to exercise it. - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu. - Small patch to enable the hard lockup detector from Anton Blanchard. - Fix from Dave Olson for missing L2 cache information on some CPUs. - Some fixes from Michael Ellerman to get Cell machines booting again. - Freescale updates from Scott: Highlights include BMan device tree nodes, an MSI erratum workaround, a couple minor performance improvements, config updates, and misc fixes/cleanup. * tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits) powerpc/powermac: Fix build error seen with powermac smp builds powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE powerpc: Remove PPC32 code from pseries specific find_and_init_phbs() powerpc/cell: Fix iommu breakage caused by controller_ops change powerpc/eeh: Fix crash in eeh_add_device_early() on Cell powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails powerpc/pseries: Correct memory hotplug locking powerpc: Fix missing L2 cache size in /sys/devices/system/cpu powerpc: Add ppc64 hard lockup detector support oprofile: Disable oprofile NMI timer on ppc64 powerpc/perf/hv-24x7: Add missing put_cpu_var() powerpc/perf/hv-24x7: Break up single_24x7_request powerpc/perf/hv-24x7: Define update_event_count() powerpc/perf/hv-24x7: Whitespace cleanup powerpc/perf/hv-24x7: Define add_event_to_24x7_request() powerpc/perf/hv-24x7: Rename hv_24x7_event_update powerpc/perf/hv-24x7: Move debug prints to separate function powerpc/perf/hv-24x7: Drop event_24x7_request() powerpc/perf/hv-24x7: Use pr_devel() to log message ... Conflicts: tools/testing/selftests/powerpc/Makefile tools/testing/selftests/powerpc/tm/Makefile
329 lines
10 KiB
C
329 lines
10 KiB
C
#ifndef DRIVERS_PCI_H
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#define DRIVERS_PCI_H
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#define PCI_CFG_SPACE_SIZE 256
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#define PCI_CFG_SPACE_EXP_SIZE 4096
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extern const unsigned char pcie_link_speed[];
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bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
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/* Functions internal to the PCI core code */
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int pci_create_sysfs_dev_files(struct pci_dev *pdev);
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void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
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#if !defined(CONFIG_DMI) && !defined(CONFIG_ACPI)
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static inline void pci_create_firmware_label_files(struct pci_dev *pdev)
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{ return; }
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static inline void pci_remove_firmware_label_files(struct pci_dev *pdev)
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{ return; }
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#else
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void pci_create_firmware_label_files(struct pci_dev *pdev);
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void pci_remove_firmware_label_files(struct pci_dev *pdev);
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#endif
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void pci_cleanup_rom(struct pci_dev *dev);
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#ifdef HAVE_PCI_MMAP
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enum pci_mmap_api {
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PCI_MMAP_SYSFS, /* mmap on /sys/bus/pci/devices/<BDF>/resource<N> */
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PCI_MMAP_PROCFS /* mmap on /proc/bus/pci/<BDF> */
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};
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int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vmai,
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enum pci_mmap_api mmap_api);
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#endif
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int pci_probe_reset_function(struct pci_dev *dev);
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/**
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* struct pci_platform_pm_ops - Firmware PM callbacks
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*
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* @is_manageable: returns 'true' if given device is power manageable by the
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* platform firmware
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*
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* @set_state: invokes the platform firmware to set the device's power state
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*
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* @choose_state: returns PCI power state of given device preferred by the
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* platform; to be used during system-wide transitions from a
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* sleeping state to the working state and vice versa
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*
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* @sleep_wake: enables/disables the system wake up capability of given device
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*
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* @run_wake: enables/disables the platform to generate run-time wake-up events
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* for given device (the device's wake-up capability has to be
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* enabled by @sleep_wake for this feature to work)
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*
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* @need_resume: returns 'true' if the given device (which is currently
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* suspended) needs to be resumed to be configured for system
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* wakeup.
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*
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* If given platform is generally capable of power managing PCI devices, all of
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* these callbacks are mandatory.
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*/
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struct pci_platform_pm_ops {
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bool (*is_manageable)(struct pci_dev *dev);
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int (*set_state)(struct pci_dev *dev, pci_power_t state);
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pci_power_t (*choose_state)(struct pci_dev *dev);
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int (*sleep_wake)(struct pci_dev *dev, bool enable);
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int (*run_wake)(struct pci_dev *dev, bool enable);
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bool (*need_resume)(struct pci_dev *dev);
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};
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int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
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void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
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void pci_power_up(struct pci_dev *dev);
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void pci_disable_enabled_device(struct pci_dev *dev);
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int pci_finish_runtime_suspend(struct pci_dev *dev);
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int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
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bool pci_dev_keep_suspended(struct pci_dev *dev);
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void pci_config_pm_runtime_get(struct pci_dev *dev);
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void pci_config_pm_runtime_put(struct pci_dev *dev);
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void pci_pm_init(struct pci_dev *dev);
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void pci_allocate_cap_save_buffers(struct pci_dev *dev);
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void pci_free_cap_save_buffers(struct pci_dev *dev);
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static inline void pci_wakeup_event(struct pci_dev *dev)
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{
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/* Wait 100 ms before the system can be put into a sleep state. */
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pm_wakeup_event(&dev->dev, 100);
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}
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static inline bool pci_has_subordinate(struct pci_dev *pci_dev)
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{
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return !!(pci_dev->subordinate);
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}
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struct pci_vpd_ops {
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ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
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ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);
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void (*release)(struct pci_dev *dev);
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};
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struct pci_vpd {
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unsigned int len;
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const struct pci_vpd_ops *ops;
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struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
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};
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int pci_vpd_pci22_init(struct pci_dev *dev);
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static inline void pci_vpd_release(struct pci_dev *dev)
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{
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if (dev->vpd)
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dev->vpd->ops->release(dev);
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}
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/* PCI /proc functions */
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#ifdef CONFIG_PROC_FS
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int pci_proc_attach_device(struct pci_dev *dev);
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int pci_proc_detach_device(struct pci_dev *dev);
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int pci_proc_detach_bus(struct pci_bus *bus);
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#else
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static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
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static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
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static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
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#endif
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/* Functions for PCI Hotplug drivers to use */
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int pci_hp_add_bridge(struct pci_dev *dev);
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#ifdef HAVE_PCI_LEGACY
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void pci_create_legacy_files(struct pci_bus *bus);
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void pci_remove_legacy_files(struct pci_bus *bus);
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#else
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static inline void pci_create_legacy_files(struct pci_bus *bus) { return; }
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static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; }
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#endif
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/* Lock for read/write access to pci device and bus lists */
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extern struct rw_semaphore pci_bus_sem;
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extern raw_spinlock_t pci_lock;
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extern unsigned int pci_pm_d3_delay;
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#ifdef CONFIG_PCI_MSI
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void pci_no_msi(void);
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void pci_msi_init_pci_dev(struct pci_dev *dev);
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#else
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static inline void pci_no_msi(void) { }
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static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
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#endif
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void pci_realloc_get_opt(char *);
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static inline int pci_no_d1d2(struct pci_dev *dev)
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{
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unsigned int parent_dstates = 0;
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if (dev->bus->self)
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parent_dstates = dev->bus->self->no_d1d2;
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return (dev->no_d1d2 || parent_dstates);
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}
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extern const struct attribute_group *pci_dev_groups[];
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extern const struct attribute_group *pcibus_groups[];
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extern struct device_type pci_dev_type;
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extern const struct attribute_group *pci_bus_groups[];
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/**
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* pci_match_one_device - Tell if a PCI device structure has a matching
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* PCI device id structure
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* @id: single PCI device id structure to match
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* @dev: the PCI device structure to match against
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*
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* Returns the matching pci_device_id structure or %NULL if there is no match.
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*/
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static inline const struct pci_device_id *
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pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
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{
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if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
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(id->device == PCI_ANY_ID || id->device == dev->device) &&
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(id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
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(id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
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!((id->class ^ dev->class) & id->class_mask))
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return id;
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return NULL;
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}
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/* PCI slot sysfs helper code */
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#define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
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extern struct kset *pci_slots_kset;
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struct pci_slot_attribute {
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struct attribute attr;
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ssize_t (*show)(struct pci_slot *, char *);
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ssize_t (*store)(struct pci_slot *, const char *, size_t);
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};
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#define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)
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enum pci_bar_type {
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pci_bar_unknown, /* Standard PCI BAR probe */
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pci_bar_io, /* An io port BAR */
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pci_bar_mem32, /* A 32-bit memory BAR */
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pci_bar_mem64, /* A 64-bit memory BAR */
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};
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bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
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int crs_timeout);
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int pci_setup_device(struct pci_dev *dev);
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int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
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struct resource *res, unsigned int reg);
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int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type);
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void pci_configure_ari(struct pci_dev *dev);
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void __pci_bus_size_bridges(struct pci_bus *bus,
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struct list_head *realloc_head);
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void __pci_bus_assign_resources(const struct pci_bus *bus,
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struct list_head *realloc_head,
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struct list_head *fail_head);
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bool pci_bus_clip_resource(struct pci_dev *dev, int idx);
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/**
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* pci_ari_enabled - query ARI forwarding status
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* @bus: the PCI bus
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*
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* Returns 1 if ARI forwarding is enabled, or 0 if not enabled;
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*/
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static inline int pci_ari_enabled(struct pci_bus *bus)
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{
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return bus->self && bus->self->ari_enabled;
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}
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void pci_reassigndev_resource_alignment(struct pci_dev *dev);
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void pci_disable_bridge_window(struct pci_dev *dev);
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/* Single Root I/O Virtualization */
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struct pci_sriov {
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int pos; /* capability position */
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int nres; /* number of resources */
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u32 cap; /* SR-IOV Capabilities */
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u16 ctrl; /* SR-IOV Control */
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u16 total_VFs; /* total VFs associated with the PF */
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u16 initial_VFs; /* initial VFs associated with the PF */
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u16 num_VFs; /* number of VFs available */
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u16 offset; /* first VF Routing ID offset */
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u16 stride; /* following VF stride */
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u32 pgsz; /* page size for BAR alignment */
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u8 link; /* Function Dependency Link */
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u8 max_VF_buses; /* max buses consumed by VFs */
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u16 driver_max_VFs; /* max num VFs driver supports */
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struct pci_dev *dev; /* lowest numbered PF */
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struct pci_dev *self; /* this PF */
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struct mutex lock; /* lock for VF bus */
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resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */
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};
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#ifdef CONFIG_PCI_ATS
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void pci_restore_ats_state(struct pci_dev *dev);
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#else
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static inline void pci_restore_ats_state(struct pci_dev *dev)
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{
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}
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#endif /* CONFIG_PCI_ATS */
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#ifdef CONFIG_PCI_IOV
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int pci_iov_init(struct pci_dev *dev);
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void pci_iov_release(struct pci_dev *dev);
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int pci_iov_resource_bar(struct pci_dev *dev, int resno);
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resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
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void pci_restore_iov_state(struct pci_dev *dev);
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int pci_iov_bus_range(struct pci_bus *bus);
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#else
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static inline int pci_iov_init(struct pci_dev *dev)
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{
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return -ENODEV;
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}
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static inline void pci_iov_release(struct pci_dev *dev)
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{
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}
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static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno)
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{
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return 0;
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}
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static inline void pci_restore_iov_state(struct pci_dev *dev)
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{
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}
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static inline int pci_iov_bus_range(struct pci_bus *bus)
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{
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return 0;
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}
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#endif /* CONFIG_PCI_IOV */
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unsigned long pci_cardbus_resource_alignment(struct resource *);
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static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
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struct resource *res)
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{
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#ifdef CONFIG_PCI_IOV
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int resno = res - dev->resource;
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if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
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return pci_sriov_resource_alignment(dev, resno);
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#endif
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if (dev->class >> 8 == PCI_CLASS_BRIDGE_CARDBUS)
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return pci_cardbus_resource_alignment(res);
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return resource_alignment(res);
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}
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void pci_enable_acs(struct pci_dev *dev);
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struct pci_dev_reset_methods {
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u16 vendor;
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u16 device;
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int (*reset)(struct pci_dev *dev, int probe);
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};
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#ifdef CONFIG_PCI_QUIRKS
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int pci_dev_specific_reset(struct pci_dev *dev, int probe);
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#else
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static inline int pci_dev_specific_reset(struct pci_dev *dev, int probe)
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{
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return -ENOTTY;
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}
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#endif
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struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus);
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#endif /* DRIVERS_PCI_H */
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