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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 23:24:11 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 23:24:11 +0300 |
commit | 57151b502cbc0fa6ff9074a76883fa9d9eda322e (patch) | |
tree | b36196203c00a8a9dba9fcaeeddd8d863fca54d7 /drivers/pci/endpoint | |
parent | 7b9df264f0ab6595eabe367b04c81824a06d9227 (diff) | |
parent | 882862aaacefcb9f723b0f7817ddafc154465d8f (diff) | |
download | linux-57151b502cbc0fa6ff9074a76883fa9d9eda322e.tar.xz |
Merge tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Release OF node when pci_scan_device() fails (Dmitry Baryshkov)
- Add pci_disable_parity() (Bjorn Helgaas)
- Disable Mellanox Tavor parity reporting (Heiner Kallweit)
- Disable N2100 r8169 parity reporting (Heiner Kallweit)
- Fix RCiEP device to RCEC association (Qiuxu Zhuo)
- Convert sysfs "config", "rom", "reset", "label", "index",
"acpi_index" to static attributes to help fix races in device
enumeration (Krzysztof Wilczyński)
- Convert sysfs "vpd" to static attribute (Heiner Kallweit, Krzysztof
Wilczyński)
- Use sysfs_emit() in "show" functions (Krzysztof Wilczyński)
- Remove unused alloc_pci_root_info() return value (Krzysztof
Wilczyński)
PCI device hotplug:
- Fix acpiphp reference count leak (Feilong Lin)
Power management:
- Fix acpi_pci_set_power_state() debug message (Rafael J. Wysocki)
- Fix runtime PM imbalance (Dinghao Liu)
Virtualization:
- Increase delay after FLR to work around Intel DC P4510 NVMe erratum
(Raphael Norwitz)
MSI:
- Convert rcar, tegra, xilinx to MSI domains (Marc Zyngier)
- For rcar, xilinx, use controller address as MSI doorbell (Marc
Zyngier)
- Remove unused hv msi_controller struct (Marc Zyngier)
- Remove unused PCI core msi_controller support (Marc Zyngier)
- Remove struct msi_controller altogether (Marc Zyngier)
- Remove unused default_teardown_msi_irqs() (Marc Zyngier)
- Let host bridges declare their reliance on MSI domains (Marc
Zyngier)
- Make pci_host_common_probe() declare its reliance on MSI domains
(Marc Zyngier)
- Advertise mediatek lack of built-in MSI handling (Thomas Gleixner)
- Document ways of ending up with NO_MSI (Marc Zyngier)
- Refactor HT advertising of NO_MSI flag (Marc Zyngier)
VPD:
- Remove obsolete Broadcom NIC VPD length-limiting quirk (Heiner
Kallweit)
- Remove sysfs VPD size checking dead code (Heiner Kallweit)
- Convert VPF sysfs file to static attribute (Heiner Kallweit)
- Remove unnecessary pci_set_vpd_size() (Heiner Kallweit)
- Tone down "missing VPD" message (Heiner Kallweit)
Endpoint framework:
- Fix NULL pointer dereference when epc_features not implemented
(Shradha Todi)
- Add missing destroy_workqueue() in endpoint test (Yang Yingliang)
Amazon Annapurna Labs PCIe controller driver:
- Fix compile testing without CONFIG_PCI_ECAM (Arnd Bergmann)
- Fix "no symbols" warnings when compile testing with
CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)
APM X-Gene PCIe controller driver:
- Fix cfg resource mapping regression (Dejin Zheng)
Broadcom iProc PCIe controller driver:
- Return zero for success of iproc_msi_irq_domain_alloc() (Pali
Rohár)
Broadcom STB PCIe controller driver:
- Add reset_control_rearm() stub for !CONFIG_RESET_CONTROLLER (Jim
Quinlan)
- Fix use of BCM7216 reset controller (Jim Quinlan)
- Use reset/rearm for Broadcom STB pulse reset instead of
deassert/assert (Jim Quinlan)
- Fix brcm_pcie_probe() error return for unsupported revision (Wei
Yongjun)
Cavium ThunderX PCIe controller driver:
- Fix compile testing (Arnd Bergmann)
- Fix "no symbols" warnings when compile testing with
CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)
Freescale Layerscape PCIe controller driver:
- Fix ls_pcie_ep_probe() syntax error (comma for semicolon)
(Krzysztof Wilczyński)
- Remove layerscape-gen4 dependencies on OF and ARM64, add dependency
on ARCH_LAYERSCAPE (Geert Uytterhoeven)
HiSilicon HIP PCIe controller driver:
- Remove obsolete HiSilicon PCIe DT description (Dongdong Liu)
Intel Gateway PCIe controller driver:
- Remove unused pcie_app_rd() (Jiapeng Chong)
Intel VMD host bridge driver:
- Program IRTE with Requester ID of VMD endpoint, not child device
(Jon Derrick)
- Disable VMD MSI-X remapping when possible so children can use more
MSI-X vectors (Jon Derrick)
MediaTek PCIe controller driver:
- Configure FC and FTS for functions other than 0 (Ryder Lee)
- Add YAML schema for MediaTek (Jianjun Wang)
- Export pci_pio_to_address() for module use (Jianjun Wang)
- Add MediaTek MT8192 PCIe controller driver (Jianjun Wang)
- Add MediaTek MT8192 INTx support (Jianjun Wang)
- Add MediaTek MT8192 MSI support (Jianjun Wang)
- Add MediaTek MT8192 system power management support (Jianjun Wang)
- Add missing MODULE_DEVICE_TABLE (Qiheng Lin)
Microchip PolarFlare PCIe controller driver:
- Make several symbols static (Wei Yongjun)
NVIDIA Tegra PCIe controller driver:
- Add MCFG quirks for Tegra194 ECAM errata (Vidya Sagar)
- Make several symbols const (Rikard Falkeborn)
- Fix Kconfig host/endpoint typo (Wesley Sheng)
SiFive FU740 PCIe controller driver:
- Add pcie_aux clock to prci driver (Greentime Hu)
- Use reset-simple in prci driver for PCIe (Greentime Hu)
- Add SiFive FU740 PCIe host controller driver and DT binding (Paul
Walmsley, Greentime Hu)
Synopsys DesignWare PCIe controller driver:
- Move MSI Receiver init to dw_pcie_host_init() so it is
re-initialized along with the RC in resume (Jisheng Zhang)
- Move iATU detection earlier to fix regression (Hou Zhiqiang)
TI J721E PCIe driver:
- Add DT binding and TI j721e support for refclk to PCIe connector
(Kishon Vijay Abraham I)
- Add host mode and endpoint mode DT bindings for TI AM64 SoC (Kishon
Vijay Abraham I)
TI Keystone PCIe controller driver:
- Use generic config accessors for TI AM65x (K3) to fix regression
(Kishon Vijay Abraham I)
Xilinx NWL PCIe controller driver:
- Add support for coherent PCIe DMA traffic using CCI (Bharat Kumar
Gogada)
- Add optional "dma-coherent" DT property (Bharat Kumar Gogada)
Miscellaneous:
- Fix kernel-doc warnings (Krzysztof Wilczyński)
- Remove unused MicroGate SyncLink device IDs (Jiri Slaby)
- Remove redundant dev_err() for devm_ioremap_resource() failure
(Chen Hui)
- Remove redundant initialization (Colin Ian King)
- Drop redundant dev_err() for platform_get_irq() errors (Krzysztof
Wilczyński)"
* tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (98 commits)
riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC
PCI: fu740: Add SiFive FU740 PCIe host controller driver
dt-bindings: PCI: Add SiFive FU740 PCIe host controller
MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
clk: sifive: Use reset-simple in prci driver for PCIe driver
clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
PCI: brcmstb: Use reset/rearm instead of deassert/assert
ata: ahci_brcm: Fix use of BCM7216 reset controller
reset: add missing empty function reset_control_rearm()
PCI: Allow VPD access for QLogic ISP2722
PCI/VPD: Add helper pci_get_func0_dev()
PCI/VPD: Remove pci_vpd_find_tag() SRDT handling
PCI/VPD: Remove pci_vpd_find_tag() 'offset' argument
PCI/VPD: Change pci_vpd_init() return type to void
PCI/VPD: Make missing VPD message less alarming
PCI/VPD: Remove pci_set_vpd_size()
x86/PCI: Remove unused alloc_pci_root_info() return value
MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer
PCI: mediatek-gen3: Add system PM support
PCI: mediatek-gen3: Add MSI support
...
Diffstat (limited to 'drivers/pci/endpoint')
-rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-ntb.c | 16 | ||||
-rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-test.c | 22 | ||||
-rw-r--r-- | drivers/pci/endpoint/pci-epc-core.c | 2 | ||||
-rw-r--r-- | drivers/pci/endpoint/pci-epf-core.c | 2 |
4 files changed, 28 insertions, 14 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-ntb.c b/drivers/pci/endpoint/functions/pci-epf-ntb.c index 338148cf56f5..bce274d02dcf 100644 --- a/drivers/pci/endpoint/functions/pci-epf-ntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-ntb.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/** +/* * Endpoint Function Driver to implement Non-Transparent Bridge functionality * * Copyright (C) 2020 Texas Instruments @@ -696,7 +696,8 @@ reset_handler: /** * epf_ntb_peer_spad_bar_clear() - Clear Peer Scratchpad BAR - * @ntb: NTB device that facilitates communication between HOST1 and HOST2 + * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound + * address. * *+-----------------+------->+------------------+ +-----------------+ *| BAR0 | | CONFIG REGION | | BAR0 | @@ -740,6 +741,7 @@ static void epf_ntb_peer_spad_bar_clear(struct epf_ntb_epc *ntb_epc) /** * epf_ntb_peer_spad_bar_set() - Set peer scratchpad BAR * @ntb: NTB device that facilitates communication between HOST1 and HOST2 + * @type: PRIMARY interface or SECONDARY interface * *+-----------------+------->+------------------+ +-----------------+ *| BAR0 | | CONFIG REGION | | BAR0 | @@ -808,7 +810,8 @@ static int epf_ntb_peer_spad_bar_set(struct epf_ntb *ntb, /** * epf_ntb_config_sspad_bar_clear() - Clear Config + Self scratchpad BAR - * @ntb: NTB device that facilitates communication between HOST1 and HOST2 + * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound + * address. * * +-----------------+------->+------------------+ +-----------------+ * | BAR0 | | CONFIG REGION | | BAR0 | @@ -851,7 +854,8 @@ static void epf_ntb_config_sspad_bar_clear(struct epf_ntb_epc *ntb_epc) /** * epf_ntb_config_sspad_bar_set() - Set Config + Self scratchpad BAR - * @ntb: NTB device that facilitates communication between HOST1 and HOST2 + * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound + * address. * * +-----------------+------->+------------------+ +-----------------+ * | BAR0 | | CONFIG REGION | | BAR0 | @@ -1312,6 +1316,7 @@ static int epf_ntb_configure_interrupt(struct epf_ntb *ntb, /** * epf_ntb_alloc_peer_mem() - Allocate memory in peer's outbound address space + * @dev: The PCI device. * @ntb_epc: EPC associated with one of the HOST whose BAR holds peer's outbound * address * @bar: BAR of @ntb_epc in for which memory has to be allocated (could be @@ -1660,7 +1665,6 @@ static int epf_ntb_init_epc_bar_interface(struct epf_ntb *ntb, * epf_ntb_init_epc_bar() - Identify BARs to be used for each of the NTB * constructs (scratchpad region, doorbell, memorywindow) * @ntb: NTB device that facilitates communication between HOST1 and HOST2 - * @type: PRIMARY interface or SECONDARY interface * * Wrapper to epf_ntb_init_epc_bar_interface() to identify the free BARs * to be used for each of BAR_CONFIG, BAR_PEER_SPAD, BAR_DB_MW1, BAR_MW2, @@ -2037,6 +2041,8 @@ static const struct config_item_type ntb_group_type = { /** * epf_ntb_add_cfs() - Add configfs directory specific to NTB * @epf: NTB endpoint function device + * @group: A pointer to the config_group structure referencing a group of + * config_items of a specific type that belong to a specific sub-system. * * Add configfs directory specific to NTB. This directory will hold * NTB specific properties like db_count, spad_count, num_mws etc., diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index c0ac4e9cbe72..d2708ca4bece 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/** +/* * Test driver to test endpoint functionality * * Copyright (C) 2017 Texas Instruments @@ -833,15 +833,18 @@ static int pci_epf_test_bind(struct pci_epf *epf) return -EINVAL; epc_features = pci_epc_get_features(epc, epf->func_no); - if (epc_features) { - linkup_notifier = epc_features->linkup_notifier; - core_init_notifier = epc_features->core_init_notifier; - test_reg_bar = pci_epc_get_first_free_bar(epc_features); - if (test_reg_bar < 0) - return -EINVAL; - pci_epf_configure_bar(epf, epc_features); + if (!epc_features) { + dev_err(&epf->dev, "epc_features not implemented\n"); + return -EOPNOTSUPP; } + linkup_notifier = epc_features->linkup_notifier; + core_init_notifier = epc_features->core_init_notifier; + test_reg_bar = pci_epc_get_first_free_bar(epc_features); + if (test_reg_bar < 0) + return -EINVAL; + pci_epf_configure_bar(epf, epc_features); + epf_test->test_reg_bar = test_reg_bar; epf_test->epc_features = epc_features; @@ -922,6 +925,7 @@ static int __init pci_epf_test_init(void) ret = pci_epf_register_driver(&test_driver); if (ret) { + destroy_workqueue(kpcitest_workqueue); pr_err("Failed to register pci epf test driver --> %d\n", ret); return ret; } @@ -932,6 +936,8 @@ module_init(pci_epf_test_init); static void __exit pci_epf_test_exit(void) { + if (kpcitest_workqueue) + destroy_workqueue(kpcitest_workqueue); pci_epf_unregister_driver(&test_driver); } module_exit(pci_epf_test_exit); diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index cc8f9eb2b177..adec9bee72cf 100644 --- a/drivers/pci/endpoint/pci-epc-core.c +++ b/drivers/pci/endpoint/pci-epc-core.c @@ -594,6 +594,8 @@ EXPORT_SYMBOL_GPL(pci_epc_add_epf); * pci_epc_remove_epf() - remove PCI endpoint function from endpoint controller * @epc: the EPC device from which the endpoint function should be removed * @epf: the endpoint function to be removed + * @type: identifies if the EPC is connected to the primary or secondary + * interface of EPF * * Invoke to remove PCI endpoint function from the endpoint controller. */ diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c index 7646c8660d42..e9289d10f822 100644 --- a/drivers/pci/endpoint/pci-epf-core.c +++ b/drivers/pci/endpoint/pci-epf-core.c @@ -113,7 +113,7 @@ EXPORT_SYMBOL_GPL(pci_epf_bind); void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar, enum pci_epc_interface_type type) { - struct device *dev = epf->epc->dev.parent; + struct device *dev; struct pci_epf_bar *epf_bar; struct pci_epc *epc; |