diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2018-05-16 14:56:22 +0200 |
|---|---|---|
| committer | Philipp Deppenwiese <zaolin.daisuki@gmail.com> | 2018-07-19 13:52:28 +0000 |
| commit | 4e2f95b789d8f3b505f52c42b634401dd5f718a2 (patch) | |
| tree | 930ee662200f158b5c442c4481df76b276c99a97 /src/include/device | |
| parent | fe98e90671b1ff06e924ae09062814050bdb3996 (diff) | |
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 <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>
Diffstat (limited to 'src/include/device')
| -rw-r--r-- | src/include/device/pci.h | 18 | ||||
| -rw-r--r-- | src/include/device/pci_def.h | 12 |
2 files changed, 30 insertions, 0 deletions
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) diff --git a/src/include/device/pci_def.h b/src/include/device/pci_def.h index 60d913204a..f9ce1a6382 100644 --- a/src/include/device/pci_def.h +++ b/src/include/device/pci_def.h @@ -292,6 +292,18 @@ #define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */ #define PCI_MSI_MASK_BIT 16 /* Mask bits register */ +/* MSI-X registers */ +#define PCI_MSIX_FLAGS 2 +#define PCI_MSIX_FLAGS_QSIZE 0x7FF /* table size */ +#define PCI_MSIX_FLAGS_MASKALL 0x4000 /* Mask all vectors for this function */ +#define PCI_MSIX_FLAGS_ENABLE 0x8000 /* MSI-X enable */ +#define PCI_MSIX_TABLE 4 /* Table offset */ +#define PCI_MSIX_PBA 8 /* Pending Bit Array offset */ +#define PCI_MSIX_PBA_BIR 0x7 /* BAR index */ +#define PCI_MSIX_PBA_OFFSET ~0x7 /* Offset into specified BAR */ +#define PCI_CAP_MSIX_SIZEOF 12 /* size of MSIX registers */ + + /* CompactPCI Hotswap Register */ #define PCI_CHSWP_CSR 2 /* Control and Status Register */ |