From: sathyanarayanan.kuppuswamy@linux.intel.com To: bhelgaas@google.com Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, ashok.raj@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com Subject: [PATCH v9 0/5] Simplify PCIe native ownership detection logic Date: Tue, 22 Sep 2020 13:54:27 -0700 [thread overview] Message-ID: <cover.1600457297.git.sathyanarayanan.kuppuswamy@linux.intel.com> (raw) From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Currently, PCIe capabilities ownership status is detected by verifying the status of pcie_ports_native, pcie_ports_dpc_native and _OSC negotiated results (cached in struct pci_host_bridge ->native_* members). But this logic can be simplified, and we can use only struct pci_host_bridge ->native_* members to detect it. This patchset removes the distributed checks for pcie_ports_native, pcie_ports_dpc_native parameters. Changes since v8: * Simplified setting _OSC ownwership logic * Moved bridge->native_ltr out of #ifdef CONFIG_PCIEPORTBUS. Changes since v7: * Fixed "fix array_size.cocci warnings". Changes since v6: * Created new patch for CONFIG_PCIEPORTBUS check in pci_init_host_bridge(). * Added warning message for a case when pcie_ports_native overrides _OSC negotiation result. Changes since v5: * Rebased on top of v5.8-rc1 Changes since v4: * Changed the patch set title (Original link: https://lkml.org/lkml/2020/5/26/1710) * Added AER/DPC dependency logic cleanup fixes. Kuppuswamy Sathyanarayanan (5): PCI: Conditionally initialize host bridge native_* members ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set. ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native is set. PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic PCI/DPC: Move AER/DPC dependency checks out of DPC driver drivers/acpi/pci_root.c | 37 ++++++++++++++++++++++--------- drivers/pci/hotplug/pciehp_core.c | 2 +- drivers/pci/pci-acpi.c | 3 --- drivers/pci/pcie/aer.c | 2 +- drivers/pci/pcie/dpc.c | 3 --- drivers/pci/pcie/portdrv.h | 2 -- drivers/pci/pcie/portdrv_core.c | 13 +++++------ drivers/pci/probe.c | 6 +++-- include/linux/acpi.h | 2 ++ include/linux/pci.h | 2 ++ 10 files changed, 42 insertions(+), 30 deletions(-) -- 2.17.1
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From: Kuppuswamy Sathyanarayanan <sathyanarayanan.nkuppuswamy@gmail.com> To: bhelgaas@google.com Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, ashok.raj@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com Subject: [PATCH v9 0/5] Simplify PCIe native ownership detection logic Date: Sun, 27 Sep 2020 18:11:31 -0700 [thread overview] Message-ID: <cover.1600457297.git.sathyanarayanan.kuppuswamy@linux.intel.com> (raw) Message-ID: <20200928011131.MI-pJpJNRQw6c35j_O6019flLWHe08C4WvKPmKEbnik@z> (raw) Currently, PCIe capabilities ownership status is detected by verifying the status of pcie_ports_native, pcie_ports_dpc_native and _OSC negotiated results (cached in struct pci_host_bridge ->native_* members). But this logic can be simplified, and we can use only struct pci_host_bridge ->native_* members to detect it. This patchset removes the distributed checks for pcie_ports_native, pcie_ports_dpc_native parameters. Changes since v8: * Simplified setting _OSC ownwership logic * Moved bridge->native_ltr out of #ifdef CONFIG_PCIEPORTBUS. Changes since v7: * Fixed "fix array_size.cocci warnings". Changes since v6: * Created new patch for CONFIG_PCIEPORTBUS check in pci_init_host_bridge(). * Added warning message for a case when pcie_ports_native overrides _OSC negotiation result. Changes since v5: * Rebased on top of v5.8-rc1 Changes since v4: * Changed the patch set title (Original link: https://lkml.org/lkml/2020/5/26/1710) * Added AER/DPC dependency logic cleanup fixes. Kuppuswamy Sathyanarayanan (5): PCI: Conditionally initialize host bridge native_* members ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set. ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native is set. PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic PCI/DPC: Move AER/DPC dependency checks out of DPC driver drivers/acpi/pci_root.c | 37 ++++++++++++++++++++++--------- drivers/pci/hotplug/pciehp_core.c | 2 +- drivers/pci/pci-acpi.c | 3 --- drivers/pci/pcie/aer.c | 2 +- drivers/pci/pcie/dpc.c | 3 --- drivers/pci/pcie/portdrv.h | 2 -- drivers/pci/pcie/portdrv_core.c | 13 +++++------ drivers/pci/probe.c | 6 +++-- include/linux/acpi.h | 2 ++ include/linux/pci.h | 2 ++ 10 files changed, 42 insertions(+), 30 deletions(-) -- 2.17.1
next reply other threads:[~2020-09-22 20:54 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-22 20:54 sathyanarayanan.kuppuswamy [this message] 2020-09-18 19:58 ` [PATCH v9 1/5] PCI: Conditionally initialize host bridge native_* members sathyanarayanan.kuppuswamy 2020-09-22 20:39 ` Bjorn Helgaas 2020-09-22 20:50 ` Kuppuswamy, Sathyanarayanan 2020-09-22 20:56 ` Bjorn Helgaas 2020-09-22 20:54 ` sathyanarayanan.kuppuswamy 2020-09-28 1:11 ` Kuppuswamy Sathyanarayanan 2020-09-18 19:58 ` [PATCH v9 3/5] ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native is set sathyanarayanan.kuppuswamy 2020-09-22 20:54 ` sathyanarayanan.kuppuswamy 2020-09-28 1:11 ` Kuppuswamy Sathyanarayanan 2020-09-18 19:58 ` [PATCH v9 5/5] PCI/DPC: Move AER/DPC dependency checks out of DPC driver sathyanarayanan.kuppuswamy 2020-09-22 20:54 ` sathyanarayanan.kuppuswamy 2020-09-28 1:11 ` Kuppuswamy Sathyanarayanan 2020-09-22 20:54 ` [PATCH v9 4/5] PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic sathyanarayanan.kuppuswamy 2020-09-28 1:11 ` Kuppuswamy Sathyanarayanan 2020-09-28 1:11 ` [PATCH v9 0/5] Simplify PCIe native ownership detection logic Kuppuswamy Sathyanarayanan 2020-09-28 1:11 ` [PATCH v9 2/5] ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set Kuppuswamy Sathyanarayanan 2020-09-29 20:58 ` [PATCH v9 0/5] Simplify PCIe native ownership detection logic Kuppuswamy, Sathyanarayanan 2020-09-29 21:04 ` Bjorn Helgaas 2020-09-29 21:23 ` Kuppuswamy, Sathyanarayanan
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