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kernel/linux-rt-4.4.41/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h 4.05 KB
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  /*
   * Copyright (c) 2003-2012 Broadcom Corporation
   * All Rights Reserved
   *
   * This software is available to you under a choice of one of two
   * licenses.  You may choose to be licensed under the terms of the GNU
   * General Public License (GPL) Version 2, available from the file
   * COPYING in the main directory of this source tree, or the Broadcom
   * license below:
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
   * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
   * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef __NLM_HAL_PCIBUS_H__
  #define __NLM_HAL_PCIBUS_H__
  
  /* PCIE Memory and IO regions */
  #define PCIE_MEM_BASE			0xd0000000ULL
  #define PCIE_MEM_LIMIT			0xdfffffffULL
  #define PCIE_IO_BASE			0x14000000ULL
  #define PCIE_IO_LIMIT			0x15ffffffULL
  
  #define PCIE_BRIDGE_CMD			0x1
  #define PCIE_BRIDGE_MSI_CAP		0x14
  #define PCIE_BRIDGE_MSI_ADDRL		0x15
  #define PCIE_BRIDGE_MSI_ADDRH		0x16
  #define PCIE_BRIDGE_MSI_DATA		0x17
  
  /* XLP Global PCIE configuration space registers */
  #define PCIE_BYTE_SWAP_MEM_BASE		0x247
  #define PCIE_BYTE_SWAP_MEM_LIM		0x248
  #define PCIE_BYTE_SWAP_IO_BASE		0x249
  #define PCIE_BYTE_SWAP_IO_LIM		0x24A
  
  #define PCIE_BRIDGE_MSIX_ADDR_BASE	0x24F
  #define PCIE_BRIDGE_MSIX_ADDR_LIMIT	0x250
  #define PCIE_MSI_STATUS			0x25A
  #define PCIE_MSI_EN			0x25B
  #define PCIE_MSIX_STATUS		0x25D
  #define PCIE_INT_STATUS0		0x25F
  #define PCIE_INT_STATUS1		0x260
  #define PCIE_INT_EN0			0x261
  #define PCIE_INT_EN1			0x262
  
  /* XLP9XX has basic changes */
  #define PCIE_9XX_BYTE_SWAP_MEM_BASE	0x25c
  #define PCIE_9XX_BYTE_SWAP_MEM_LIM	0x25d
  #define PCIE_9XX_BYTE_SWAP_IO_BASE	0x25e
  #define PCIE_9XX_BYTE_SWAP_IO_LIM	0x25f
  
  #define PCIE_9XX_BRIDGE_MSIX_ADDR_BASE	0x264
  #define PCIE_9XX_BRIDGE_MSIX_ADDR_LIMIT	0x265
  #define PCIE_9XX_MSI_STATUS		0x283
  #define PCIE_9XX_MSI_EN			0x284
  /* 128 MSIX vectors available in 9xx */
  #define PCIE_9XX_MSIX_STATUS0		0x286
  #define PCIE_9XX_MSIX_STATUSX(n)	(n + 0x286)
  #define PCIE_9XX_MSIX_VEC		0x296
  #define PCIE_9XX_MSIX_VECX(n)		(n + 0x296)
  #define PCIE_9XX_INT_STATUS0		0x397
  #define PCIE_9XX_INT_STATUS1		0x398
  #define PCIE_9XX_INT_EN0		0x399
  #define PCIE_9XX_INT_EN1		0x39a
  
  /* other */
  #define PCIE_NLINKS			4
  
  /* MSI addresses */
  #define MSI_ADDR_BASE			0xfffee00000ULL
  #define MSI_ADDR_SZ			0x10000
  #define MSI_LINK_ADDR(n, l)		(MSI_ADDR_BASE + \
  				(PCIE_NLINKS * (n) + (l)) * MSI_ADDR_SZ)
  #define MSIX_ADDR_BASE			0xfffef00000ULL
  #define MSIX_LINK_ADDR(n, l)		(MSIX_ADDR_BASE + \
  				(PCIE_NLINKS * (n) + (l)) * MSI_ADDR_SZ)
  #ifndef __ASSEMBLY__
  
  #define nlm_read_pcie_reg(b, r)		nlm_read_reg(b, r)
  #define nlm_write_pcie_reg(b, r, v)	nlm_write_reg(b, r, v)
  #define nlm_get_pcie_base(node, inst)	nlm_pcicfg_base(cpu_is_xlp9xx() ? \
  	XLP9XX_IO_PCIE_OFFSET(node, inst) : XLP_IO_PCIE_OFFSET(node, inst))
  
  #ifdef CONFIG_PCI_MSI
  void xlp_init_node_msi_irqs(int node, int link);
  #else
  static inline void xlp_init_node_msi_irqs(int node, int link) {}
  #endif
  
  struct pci_dev *xlp_get_pcie_link(const struct pci_dev *dev);
  
  #endif
  #endif /* __NLM_HAL_PCIBUS_H__ */