/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2005-2009 Cavium Networks */ #ifndef __PCI_OCTEON_H__ #define __PCI_OCTEON_H__ #include <linux/pci.h> /* * The physical memory base mapped by BAR1. 256MB at the end of the * first 4GB. */ #define CVMX_PCIE_BAR1_PHYS_BASE ((1ull << 32) - (1ull << 28)) #define CVMX_PCIE_BAR1_PHYS_SIZE (1ull << 28) /* * The RC base of BAR1. gen1 has a 39-bit BAR2, gen2 has 41-bit BAR2, * place BAR1 so it is the same for both. */ #define CVMX_PCIE_BAR1_RC_BASE (1ull << 41) /* * pcibios_map_irq() is defined inside pci-octeon.c. All it does is * call the Octeon specific version pointed to by this variable. This * function needs to change for PCI or PCIe based hosts. */ extern int (*octeon_pcibios_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); /* * For PCI (not PCIe) the BAR2 base address. */ #define OCTEON_BAR2_PCI_ADDRESS 0x8000000000ull /* * For PCI (not PCIe) the base of the memory mapped by BAR1 */ extern u64 octeon_bar1_pci_phys; /* * The following defines are used when octeon_dma_bar_type = * OCTEON_DMA_BAR_TYPE_BIG */ #define OCTEON_PCI_BAR1_HOLE_BITS 5 #define OCTEON_PCI_BAR1_HOLE_SIZE (1ul<<(OCTEON_PCI_BAR1_HOLE_BITS+3)) enum octeon_dma_bar_type { OCTEON_DMA_BAR_TYPE_INVALID, OCTEON_DMA_BAR_TYPE_SMALL, OCTEON_DMA_BAR_TYPE_BIG, OCTEON_DMA_BAR_TYPE_PCIE, OCTEON_DMA_BAR_TYPE_PCIE2 }; /* * This tells the DMA mapping system in dma-octeon.c how to map PCI * DMA addresses. */ extern enum octeon_dma_bar_type octeon_dma_bar_type; void octeon_pci_dma_init(void); extern char *octeon_swiotlb; #endif