From 4e2f95b789d8f3b505f52c42b634401dd5f718a2 Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Wed, 16 May 2018 14:56:22 +0200 Subject: device/pci: Add MSI-X helper functions Basic PCI MSI-X table helper functions. Imported from GNU/Linux kernel PCI subsystem. To be used on Cavium to configure MSI-X tables. Change-Id: I94413712e7986efd17e6b11ba59f6eb390384c8c Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/26329 Reviewed-by: Philipp Deppenwiese Tested-by: build bot (Jenkins) --- src/include/device/pci.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src/include/device/pci.h') diff --git a/src/include/device/pci.h b/src/include/device/pci.h index 3cc2c64e4f..f1ab91bbc7 100644 --- a/src/include/device/pci.h +++ b/src/include/device/pci.h @@ -56,6 +56,20 @@ struct pci_driver { const unsigned short *devices; }; +struct msix_entry { + union { + struct { + u32 lower_addr; + u32 upper_addr; + }; + struct { + u64 addr; + }; + }; + u32 data; + u32 vec_control; +}; + #ifdef __SIMPLE_DEVICE__ #define __pci_driver __attribute__((unused)) #else @@ -104,6 +118,10 @@ void pci_assign_irqs(unsigned int bus, unsigned int slot, const char *get_pci_class_name(struct device *dev); const char *get_pci_subclass_name(struct device *dev); +size_t pci_msix_table_size(struct device *dev); +int pci_msix_table_bar(struct device *dev, u32 *offset, u8 *idx); +struct msix_entry *pci_msix_get_table(struct device *dev); + #define PCI_IO_BRIDGE_ALIGN 4096 #define PCI_MEM_BRIDGE_ALIGN (1024*1024) -- cgit v1.2.3