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device/pci: Add MSI-X helper functions

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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 <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/26329
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Patrick Rudolph
2018-05-16 14:56:22 +02:00
committed by Philipp Deppenwiese
parent fe98e90671
commit 4e2f95b789
3 changed files with 98 additions and 0 deletions
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18
src/include/device/pci.h
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@ -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)