diff options
Diffstat (limited to 'nixos/modules/omnia-kernel-patches/0044-PCI-pciehp-Enable-Command-Completed-Interrupt-only-i.patch')
| -rw-r--r-- | nixos/modules/omnia-kernel-patches/0044-PCI-pciehp-Enable-Command-Completed-Interrupt-only-i.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/nixos/modules/omnia-kernel-patches/0044-PCI-pciehp-Enable-Command-Completed-Interrupt-only-i.patch b/nixos/modules/omnia-kernel-patches/0044-PCI-pciehp-Enable-Command-Completed-Interrupt-only-i.patch new file mode 100644 index 0000000..5a658e7 --- /dev/null +++ b/nixos/modules/omnia-kernel-patches/0044-PCI-pciehp-Enable-Command-Completed-Interrupt-only-i.patch @@ -0,0 +1,38 @@ +From 37248c705254f050fb67b107eb389a378ab0428e Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org> +Date: Wed, 31 Mar 2021 15:14:29 +0200 +Subject: [PATCH 44/53] PCI: pciehp: Enable Command Completed Interrupt only if + supported +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The No Command Completed Support bit in the Slot Capabilities register +indicates whether Command Completed Interrupt Enable is unsupported. + +Enable this interrupt only in the case it is supported. + +Signed-off-by: Pali Rohár <pali@kernel.org> +Signed-off-by: Marek Behún <kabel@kernel.org> +--- + drivers/pci/hotplug/pciehp_hpc.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c +index ef807c79b1b1..a5199b312e74 100644 +--- a/drivers/pci/hotplug/pciehp_hpc.c ++++ b/drivers/pci/hotplug/pciehp_hpc.c +@@ -817,7 +817,9 @@ static void pcie_enable_notification(struct controller *ctrl) + else + cmd |= PCI_EXP_SLTCTL_PDCE; + if (!pciehp_poll_mode) +- cmd |= PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE; ++ cmd |= PCI_EXP_SLTCTL_HPIE; ++ if (!pciehp_poll_mode && !NO_CMD_CMPL(ctrl)) ++ cmd |= PCI_EXP_SLTCTL_CCIE; + + mask = (PCI_EXP_SLTCTL_PDCE | PCI_EXP_SLTCTL_ABPE | + PCI_EXP_SLTCTL_PFDE | +-- +2.37.3 + |