| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 |