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/*
* 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