kernel/linux.git/drivers/pci/host, branch v4.17.1

PCI: hv: Do not wait forever on a device that has disappeared

2018-06-11T20:43:19+00:00

commit c3635da2a336441253c33298b87b3042db100725 upstream. Before the guest finishes the device initialization, the device can be removed anytime by the host, and after that the host won't respond to the guest's request, so the guest should be prepared to handle this case. Add a polling mechanism to detect device presence. Signed-off-by: Dexuan Cui [lorenzo.pieralisi@arm.com: edited commit log] Signed-off-by: Lorenzo Pieralisi Reviewed-by: Haiyang Zhang Cc: Stephen Hemminger Cc: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman

PCI: aardvark: Fix PCIe Max Read Request Size setting

2018-04-16T10:48:45+00:00

There is an obvious typo issue in the definition of the PCIe maximum read request size: a bit shift is directly used as a value, while it should be used to shift the correct value. Fixes: 8c39d710363c1 ("PCI: aardvark: Add Aardvark PCI host controller driver") Cc: Signed-off-by: Evan Wang Reviewed-by: Victor Gu Reviewed-by: Nadav Haklai [Thomas: tweak commit log.] Signed-off-by: Thomas Petazzoni Signed-off-by: Lorenzo Pieralisi

PCI: aardvark: Use ISR1 instead of ISR0 interrupt in legacy irq mode

2018-04-16T10:48:32+00:00

The Aardvark has two interrupts sets: - first set is bit[23:16] of PCIe ISR 0 register(RD0074840h) - second set is bit[11:8] of PCIe ISR 1 register(RD0074848h) Only one set should be used, while another set should be masked. The second set, ISR1, is more advanced, the Legacy INT_X status bit is asserted once Assert_INTX message is received, and de-asserted after Deassert_INTX message is received which matches what the driver is currently doing in the ->irq_mask() and ->irq_unmask() functions. The ISR0 requires additional work to deassert the interrupt, which the driver does not currently implement, therefore it needs fixing. Update the driver to use ISR1 register set, fixing current implementation. Fixes: 8c39d710363c1 ("PCI: aardvark: Add Aardvark PCI host controller driver") Link: https://bugzilla.kernel.org/show_bug.cgi?id=196339 Signed-off-by: Victor Gu [Thomas: tweak commit log.] Signed-off-by: Thomas Petazzoni [lorenzo.pieralisi@arm.com: updated the commit log] Signed-off-by: Lorenzo Pieralisi Reviewed-by: Evan Wang Reviewed-by: Nadav Haklai Cc:

PCI: aardvark: Set PIO_ADDR_LS correctly in advk_pcie_rd_conf()

2018-04-16T10:21:18+00:00

When setting the PIO_ADDR_LS register during a configuration read, we were properly passing the device number, function number and register number, but not the bus number, causing issues when reading the configuration of PCIe devices. Fixes: 8c39d710363c1 ("PCI: aardvark: Add Aardvark PCI host controller driver") Cc: Signed-off-by: Victor Gu Reviewed-by: Wilson Ding Reviewed-by: Nadav Haklai [Thomas: tweak commit log.] Signed-off-by: Thomas Petazzoni Signed-off-by: Lorenzo Pieralisi

PCI: aardvark: Fix logic in advk_pcie_{rd,wr}_conf()

2018-04-16T10:21:00+00:00

The PCI configuration space read/write functions were special casing the situation where PCI_SLOT(devfn) != 0, and returned PCIBIOS_DEVICE_NOT_FOUND in this case. However, while this is what is intended for the root bus, it is not intended for the child busses, as it prevents discovering devices with PCI_SLOT(x) != 0. Therefore, we return PCIBIOS_DEVICE_NOT_FOUND only if we're on the root bus. Fixes: 8c39d710363c1 ("PCI: aardvark: Add Aardvark PCI host controller driver") Cc: Signed-off-by: Victor Gu Reviewed-by: Wilson Ding Reviewed-by: Nadav Haklai [Thomas: tweak commit log.] Signed-off-by: Thomas Petazzoni Signed-off-by: Lorenzo Pieralisi

Merge branch 'lorenzo/pci/xilinx'

2018-04-04T18:28:57+00:00

* lorenzo/pci/xilinx: PCI: pcie-xilinx-nwl: Fix mask value to disable MSIs

Merge branch 'lorenzo/pci/xgene'

2018-04-04T18:28:56+00:00

* lorenzo/pci/xgene: PCI: xgene: Fix the xgene_msi_probe() return code

Merge branch 'lorenzo/pci/tegra'

2018-04-04T18:28:54+00:00

* lorenzo/pci/tegra: PCI: tegra: Add power management support PCI: tegra: Add loadable kernel module support PCI: tegra: Free resources on probe failure

Merge branch 'lorenzo/pci/rcar'

2018-04-04T18:28:52+00:00

* lorenzo/pci/rcar: dt-bindings: PCI: rcar: Add device tree support for r8a7743 PCI: rcar-gen2: Remove duplicated bit-wise or of RCAR_PCI_INT_SIGRETABORT

Merge branch 'lorenzo/pci/hv'

2018-04-04T18:28:50+00:00

* lorenzo/pci/hv: PCI: hv: Only queue new work items in hv_pci_devices_present() if necessary PCI: hv: Remove the bogus test in hv_eject_device_work() PCI: hv: Fix a comment typo in _hv_pcifront_read_config() PCI: hv: Fix 2 hang issues in hv_compose_msi_msg() PCI: hv: Serialize the present and eject work items