1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2005-2009 Cavium Networks 7 */ 8 9 #ifndef __PCI_OCTEON_H__ 10 #define __PCI_OCTEON_H__ 11 12 #include <linux/pci.h> 13 14 /* 15 * The physical memory base mapped by BAR1. 256MB at the end of the 16 * first 4GB. 17 */ 18 #define CVMX_PCIE_BAR1_PHYS_BASE ((1ull << 32) - (1ull << 28)) 19 #define CVMX_PCIE_BAR1_PHYS_SIZE (1ull << 28) 20 21 /* 22 * The RC base of BAR1. gen1 has a 39-bit BAR2, gen2 has 41-bit BAR2, 23 * place BAR1 so it is the same for both. 24 */ 25 #define CVMX_PCIE_BAR1_RC_BASE (1ull << 41) 26 27 /* 28 * pcibios_map_irq() is defined inside pci-octeon.c. All it does is 29 * call the Octeon specific version pointed to by this variable. This 30 * function needs to change for PCI or PCIe based hosts. 31 */ 32 extern int (*octeon_pcibios_map_irq)(const struct pci_dev *dev, 33 u8 slot, u8 pin); 34 35 /* 36 * For PCI (not PCIe) the BAR2 base address. 37 */ 38 #define OCTEON_BAR2_PCI_ADDRESS 0x8000000000ull 39 40 /* 41 * For PCI (not PCIe) the base of the memory mapped by BAR1 42 */ 43 extern u64 octeon_bar1_pci_phys; 44 45 /* 46 * The following defines are used when octeon_dma_bar_type = 47 * OCTEON_DMA_BAR_TYPE_BIG 48 */ 49 #define OCTEON_PCI_BAR1_HOLE_BITS 5 50 #define OCTEON_PCI_BAR1_HOLE_SIZE (1ul<<(OCTEON_PCI_BAR1_HOLE_BITS+3)) 51 52 enum octeon_dma_bar_type { 53 OCTEON_DMA_BAR_TYPE_INVALID, 54 OCTEON_DMA_BAR_TYPE_SMALL, 55 OCTEON_DMA_BAR_TYPE_BIG, 56 OCTEON_DMA_BAR_TYPE_PCIE, 57 OCTEON_DMA_BAR_TYPE_PCIE2 58 }; 59 60 /* 61 * This tells the DMA mapping system in dma-octeon.c how to map PCI 62 * DMA addresses. 63 */ 64 extern enum octeon_dma_bar_type octeon_dma_bar_type; 65 66 void octeon_pci_dma_init(void); 67 extern char *octeon_swiotlb; 68 69 #endif 70