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| author | Manikanta Maddireddy <mmaddireddy@nvidia.com> | 2026-03-24 11:08:54 +0300 |
|---|---|---|
| committer | Manivannan Sadhasivam <mani@kernel.org> | 2026-04-04 13:44:37 +0300 |
| commit | 5f352433ea39171e19fbb3a7e18d983510176854 (patch) | |
| tree | be493928c4befd4a8c009b0ec2f4b18c0b1cda99 | |
| parent | 9c55d0eb4e9d1bf229d691363fb0641a9b05d904 (diff) | |
| download | linux-5f352433ea39171e19fbb3a7e18d983510176854.tar.xz | |
PCI: endpoint: Add reserved region type for MSI-X Table and PBA
Add PCI_EPC_BAR_RSVD_MSIX_TBL_RAM and PCI_EPC_BAR_RSVD_MSIX_PBA_RAM to
enum pci_epc_bar_rsvd_region_type so that Endpoint controllers can
describe hardware-owned MSI-X Table and PBA (Pending Bit Array) regions
behind a BAR_RESERVED BAR.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://patch.msgid.link/20260324080857.916263-2-mmaddireddy@nvidia.com
| -rw-r--r-- | include/linux/pci-epc.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index 334c2b7578d0..1eca1264815b 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -211,6 +211,8 @@ enum pci_epc_bar_type { /** * enum pci_epc_bar_rsvd_region_type - type of a fixed subregion behind a BAR * @PCI_EPC_BAR_RSVD_DMA_CTRL_MMIO: Integrated DMA controller MMIO window + * @PCI_EPC_BAR_RSVD_MSIX_TBL_RAM: MSI-X table structure + * @PCI_EPC_BAR_RSVD_MSIX_PBA_RAM: MSI-X PBA structure * * BARs marked BAR_RESERVED are owned by the SoC/EPC hardware and must not be * reprogrammed by EPF drivers. Some of them still expose fixed subregions that @@ -218,6 +220,8 @@ enum pci_epc_bar_type { */ enum pci_epc_bar_rsvd_region_type { PCI_EPC_BAR_RSVD_DMA_CTRL_MMIO = 0, + PCI_EPC_BAR_RSVD_MSIX_TBL_RAM, + PCI_EPC_BAR_RSVD_MSIX_PBA_RAM, }; /** |