From c0bd419732945b38268d56d2e924995fc53c8f7c Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 22 Feb 2022 16:50:20 +0100 Subject: PCI: pci-bridge-emul: Add support for PCIe extended capabilities MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add support for PCIe extended capabilities, which we just redirect to the emulating driver. [pali: Fix writing new value with W1C bits] Link: https://lore.kernel.org/r/20220222155030.988-3-pali@kernel.org Signed-off-by: Russell King Signed-off-by: Pali Rohár Signed-off-by: Marek Behún Signed-off-by: Lorenzo Pieralisi --- drivers/pci/pci-bridge-emul.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/pci/pci-bridge-emul.h') diff --git a/drivers/pci/pci-bridge-emul.h b/drivers/pci/pci-bridge-emul.h index 4953274cac18..6b5f75b2ad02 100644 --- a/drivers/pci/pci-bridge-emul.h +++ b/drivers/pci/pci-bridge-emul.h @@ -90,6 +90,14 @@ struct pci_bridge_emul_ops { */ pci_bridge_emul_read_status_t (*read_pcie)(struct pci_bridge_emul *bridge, int reg, u32 *value); + + /* + * Same as ->read_base(), except it is for reading from the + * PCIe extended capability configuration space. + */ + pci_bridge_emul_read_status_t (*read_ext)(struct pci_bridge_emul *bridge, + int reg, u32 *value); + /* * Called when writing to the regular PCI bridge configuration * space. old is the current value, new is the new value being @@ -105,6 +113,13 @@ struct pci_bridge_emul_ops { */ void (*write_pcie)(struct pci_bridge_emul *bridge, int reg, u32 old, u32 new, u32 mask); + + /* + * Same as ->write_base(), except it is for writing from the + * PCIe extended capability configuration space. + */ + void (*write_ext)(struct pci_bridge_emul *bridge, int reg, + u32 old, u32 new, u32 mask); }; struct pci_bridge_reg_behavior; -- cgit v1.2.3