linux.git/drivers/pci/endpoint, branch v4.19.259 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git PCI: endpoint: Fix missing destroy_workqueue() 2021-05-22T08:59:43+00:00 Yang Yingliang yangyingliang@huawei.com 2021-03-31T08:40:12+00:00 fb787dcb30987026d1028cf07e7180060fe81fb1 [ Upstream commit acaef7981a218813e3617edb9c01837808de063c ] Add the missing destroy_workqueue() before return from pci_epf_test_init() in the error handling case and add destroy_workqueue() in pci_epf_test_exit(). Link: https://lore.kernel.org/r/20210331084012.2091010-1-yangyingliang@huawei.com Fixes: 349e7a85b25fa ("PCI: endpoint: functions: Add an EP function to test PCI") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit acaef7981a218813e3617edb9c01837808de063c ]

Add the missing destroy_workqueue() before return from
pci_epf_test_init() in the error handling case and add
destroy_workqueue() in pci_epf_test_exit().

Link: https://lore.kernel.org/r/20210331084012.2091010-1-yangyingliang@huawei.com
Fixes: 349e7a85b25fa ("PCI: endpoint: functions: Add an EP function to test PCI")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
PCI: endpoint: Fix for concurrent memory allocation in OB address region 2020-04-17T08:48:46+00:00 Kishon Vijay Abraham I kishon@ti.com 2020-02-24T09:53:36+00:00 9ffaeee7bce48dfd454cdbfc3f9269962fd5a322 commit 04e046ca57ebed3943422dee10eec9e73aec081e upstream. pci-epc-mem uses a bitmap to manage the Endpoint outbound (OB) address region. This address region will be shared by multiple endpoint functions (in the case of multi function endpoint) and it has to be protected from concurrent access to avoid updating an inconsistent state. Use a mutex to protect bitmap updates to prevent the memory allocation API from returning incorrect addresses. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 04e046ca57ebed3943422dee10eec9e73aec081e upstream.

pci-epc-mem uses a bitmap to manage the Endpoint outbound (OB) address
region. This address region will be shared by multiple endpoint
functions (in the case of multi function endpoint) and it has to be
protected from concurrent access to avoid updating an inconsistent state.

Use a mutex to protect bitmap updates to prevent the memory
allocation API from returning incorrect addresses.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio() 2020-01-27T13:50:23+00:00 Wen Yang wen.yang99@zte.com.cn 2019-02-11T09:04:00+00:00 1dfd97f0b1bd1691fc97900806b024bdc0c9f60b [ Upstream commit 726dabfde6aa35a4f1508e235ae37edbbf9fbc65 ] Functions copying from/to IO addresses should use the memcpy_fromio()/memcpy_toio() API rather than plain memcpy(). Fix the issue detected through the sparse tool. Fixes: 349e7a85b25f ("PCI: endpoint: functions: Add an EP function to test PCI") Suggested-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> [lorenzo.pieralisi@arm.com: updated log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> CC: Bjorn Helgaas <bhelgaas@google.com> CC: Gustavo Pimentel <gustavo.pimentel@synopsys.com> CC: Niklas Cassel <niklas.cassel@axis.com> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> CC: Cyrille Pitchen <cyrille.pitchen@free-electrons.com> CC: linux-pci@vger.kernel.org CC: linux-kernel@vger.kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 726dabfde6aa35a4f1508e235ae37edbbf9fbc65 ]

Functions copying from/to IO addresses should use the
memcpy_fromio()/memcpy_toio() API rather than plain memcpy().

Fix the issue detected through the sparse tool.

Fixes: 349e7a85b25f ("PCI: endpoint: functions: Add an EP function to test PCI")
Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
[lorenzo.pieralisi@arm.com: updated log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
CC: Niklas Cassel <niklas.cassel@axis.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
CC: linux-pci@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Merge branch 'remotes/lorenzo/pci/dwc' 2018-08-15T19:59:11+00:00 Bjorn Helgaas bhelgaas@google.com 2018-08-15T19:59:11+00:00 0c38011aba35b2cdca263c0ba4d28e2e727b5acb - Add Kirin MSI support (Xiaowei Song) - Drop unnecessary root_bus_nr setting from exynos, imx6, keystone, armada8k, artpec6, designware-plat, histb, qcom, spear13xx (Shawn Guo) - Move link notification settings from DesignWare core to individual drivers (Gustavo Pimentel) - Add endpoint library MSI-X interfaces (Gustavo Pimentel) - Correct signature of endpoint library IRQ interfaces (Gustavo Pimentel) - Add DesignWare endpoint library MSI-X callbacks (Gustavo Pimentel) - Add endpoint library MSI-X test support (Gustavo Pimentel) * remotes/lorenzo/pci/dwc: PCI: endpoint: Add MSI set maximum restriction tools: PCI: Add MSI-X support pci_endpoint_test: Add 2 ioctl commands pci-epf-test/pci_endpoint_test: Add MSI-X support pci-epf-test/pci_endpoint_test: Use irq_type module parameter pci-epf-test/pci_endpoint_test: Cleanup PCI_ENDPOINT_TEST memspace PCI: dwc: Add legacy interrupt callback handler PCI: dwc: Rework MSI callbacks handler PCI: dwc: Add MSI-X callbacks handler PCI: Update xxx_pcie_ep_raise_irq() and pci_epc_raise_irq() signatures PCI: endpoint: Add MSI-X interfaces PCI: dwc: Fix EP link notification implementation PCI: spear13xx: Drop unnecessary root_bus_nr setting PCI: qcom: Drop unnecessary root_bus_nr setting PCI: histb: Drop unnecessary root_bus_nr setting PCI: designware-plat: Drop unnecessary root_bus_nr setting PCI: artpec6: Drop unnecessary root_bus_nr setting PCI: armada8k: Drop unnecessary root_bus_nr setting PCI: keystone: Drop unnecessary root_bus_nr setting PCI: imx6: Drop unnecessary root_bus_nr setting PCI: exynos: Drop unnecessary root_bus_nr setting PCI: kirin: Add MSI support 
  - Add Kirin MSI support (Xiaowei Song)

  - Drop unnecessary root_bus_nr setting from exynos, imx6, keystone,
    armada8k, artpec6, designware-plat, histb, qcom, spear13xx (Shawn Guo)

  - Move link notification settings from DesignWare core to individual
    drivers (Gustavo Pimentel)

  - Add endpoint library MSI-X interfaces (Gustavo Pimentel)

  - Correct signature of endpoint library IRQ interfaces (Gustavo Pimentel)

  - Add DesignWare endpoint library MSI-X callbacks (Gustavo Pimentel)

  - Add endpoint library MSI-X test support (Gustavo Pimentel)

* remotes/lorenzo/pci/dwc:
  PCI: endpoint: Add MSI set maximum restriction
  tools: PCI: Add MSI-X support
  pci_endpoint_test: Add 2 ioctl commands
  pci-epf-test/pci_endpoint_test: Add MSI-X support
  pci-epf-test/pci_endpoint_test: Use irq_type module parameter
  pci-epf-test/pci_endpoint_test: Cleanup PCI_ENDPOINT_TEST memspace
  PCI: dwc: Add legacy interrupt callback handler
  PCI: dwc: Rework MSI callbacks handler
  PCI: dwc: Add MSI-X callbacks handler
  PCI: Update xxx_pcie_ep_raise_irq() and pci_epc_raise_irq() signatures
  PCI: endpoint: Add MSI-X interfaces
  PCI: dwc: Fix EP link notification implementation
  PCI: spear13xx: Drop unnecessary root_bus_nr setting
  PCI: qcom: Drop unnecessary root_bus_nr setting
  PCI: histb: Drop unnecessary root_bus_nr setting
  PCI: designware-plat: Drop unnecessary root_bus_nr setting
  PCI: artpec6: Drop unnecessary root_bus_nr setting
  PCI: armada8k: Drop unnecessary root_bus_nr setting
  PCI: keystone: Drop unnecessary root_bus_nr setting
  PCI: imx6: Drop unnecessary root_bus_nr setting
  PCI: exynos: Drop unnecessary root_bus_nr setting
  PCI: kirin: Add MSI support
PCI: endpoint: Add MSI set maximum restriction 2018-07-19T10:47:25+00:00 Gustavo Pimentel gustavo.pimentel@synopsys.com 2018-07-19T08:32:22+00:00 15c972dfb3954569e7d17ebadf1b10d0a0c3baa3 Add pci_epc_set_msi() maximum 32 interrupts validation. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> 
Add pci_epc_set_msi() maximum 32 interrupts validation.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
pci-epf-test/pci_endpoint_test: Add MSI-X support 2018-07-19T10:46:45+00:00 Gustavo Pimentel gustavo.pimentel@synopsys.com 2018-07-19T08:32:19+00:00 c2e00e31087e58f6c49b90b4702fc3df4fad6a83 Add MSI-X support and update driver documentation accordingly. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> 
Add MSI-X support and update driver documentation accordingly.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
pci-epf-test/pci_endpoint_test: Cleanup PCI_ENDPOINT_TEST memspace 2018-07-19T10:39:44+00:00 Gustavo Pimentel gustavo.pimentel@synopsys.com 2018-07-19T08:32:17+00:00 e8817de7fbfca407f4f47da050d12b10fece5706 Cleanup PCI_ENDPOINT_TEST memspace (by moving the interrupt number away from command section). Add IRQ_TYPE register to identify the triggered ID interrupt required for the READ/WRITE/COPY tests and raise IRQ test commands. Update documentation accordingly. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> 
Cleanup PCI_ENDPOINT_TEST memspace (by moving the interrupt number away
from command section).

Add IRQ_TYPE register to identify the triggered ID interrupt required
for the READ/WRITE/COPY tests and raise IRQ test commands.

Update documentation accordingly.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
PCI: Update xxx_pcie_ep_raise_irq() and pci_epc_raise_irq() signatures 2018-07-19T10:34:42+00:00 Gustavo Pimentel gustavo.pimentel@synopsys.com 2018-07-19T08:32:13+00:00 d3c70a98d7d63cae02d50ebfafea04264a767401 Change {cdns, dra7xx, artpec6, dw, rockchip}_pcie_ep_raise_irq() and pci_epc_raise_irq() signature, namely the interrupt_num variable type from u8 to u16 to accommodate 2048 maximum MSI-X interrupts. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Alan Douglas <adouglas@cadence.com> Acked-by: Shawn Lin <shawn.lin@rock-chips.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Joao Pinto <jpinto@synopsys.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> 
Change {cdns, dra7xx, artpec6, dw, rockchip}_pcie_ep_raise_irq() and
pci_epc_raise_irq() signature, namely the interrupt_num variable type
from u8 to u16 to accommodate 2048 maximum MSI-X interrupts.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Alan Douglas <adouglas@cadence.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
PCI: endpoint: Add MSI-X interfaces 2018-07-19T10:34:23+00:00 Gustavo Pimentel gustavo.pimentel@synopsys.com 2018-07-19T08:32:12+00:00 8963106eabdc56911e9b65258eb5e9a6b7b3dfda Add PCI_EPC_IRQ_MSIX type. Add MSI-X callbacks signatures to the ops structure. Add sysfs interface for set/get MSI-X capability maximum number. Update documentation accordingly. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> 
Add PCI_EPC_IRQ_MSIX type.

Add MSI-X callbacks signatures to the ops structure.

Add sysfs interface for set/get MSI-X capability maximum number.

Update documentation accordingly.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
PCI: endpoint: Fix NULL pointer dereference error when CONFIGFS is disabled 2018-07-09T20:19:51+00:00 Kishon Vijay Abraham I kishon@ti.com 2018-07-09T20:18:56+00:00 a83a2173441698f7ac9867b93bcca21cf18a032d commit ef1433f717a2 ("PCI: endpoint: Create configfs entry for each pci_epf_device_id table entry") while adding configfs entry for each pci_epf_device_id table entry introduced a NULL pointer dereference error when CONFIG_PCI_ENDPOINT_CONFIGFS is not enabled. Fix it here. Fixes: ef1433f717a2 ("PCI: endpoint: Create configfs entry for each pci_epf_device_id table entry") Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> [lorenzo.pieralisi: updated commit log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 
commit ef1433f717a2 ("PCI: endpoint: Create configfs entry for each
pci_epf_device_id table entry") while adding configfs entry for each
pci_epf_device_id table entry introduced a NULL pointer dereference error
when CONFIG_PCI_ENDPOINT_CONFIGFS is not enabled.

Fix it here.

Fixes: ef1433f717a2 ("PCI: endpoint: Create configfs entry for each
pci_epf_device_id table entry")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[lorenzo.pieralisi: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>