LXR linux/drivers/misc/mic/common/mic

   1/*
   2 * Intel MIC Platform Software Stack (MPSS)
   3 *
   4 * Copyright(c) 2013 Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License, version 2, as
   8 * published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful, but
  11 * WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13 * General Public License for more details.
  14 *
  15 * The full GNU General Public License is included in this distribution in
  16 * the file called "COPYING".
  17 *
  18 * Intel MIC driver.
  19 *
  20 */
  21#ifndef __MIC_DEV_H__
  22#define __MIC_DEV_H__
  23
  24/* The maximum number of MIC devices supported in a single host system. */
  25#define MIC_MAX_NUM_DEVS 128
  26
  27/**
  28 * enum mic_hw_family - The hardware family to which a device belongs.
  29 */
  30enum mic_hw_family {
  31        MIC_FAMILY_X100 = 0,
  32        MIC_FAMILY_X200,
  33        MIC_FAMILY_UNKNOWN,
  34        MIC_FAMILY_LAST
  35};
  36
  37/**
  38 * struct mic_mw - MIC memory window
  39 *
  40 * @pa: Base physical address.
  41 * @va: Base ioremap'd virtual address.
  42 * @len: Size of the memory window.
  43 */
  44struct mic_mw {
  45        phys_addr_t pa;
  46        void __iomem *va;
  47        resource_size_t len;
  48};
  49
  50/*
  51 * Scratch pad register offsets used by the host to communicate
  52 * device page DMA address to the card.
  53 */
  54#define MIC_DPLO_SPAD 14
  55#define MIC_DPHI_SPAD 15
  56
  57/*
  58 * These values are supposed to be in the config_change field of the
  59 * device page when the host sends a config change interrupt to the card.
  60 */
  61#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
  62#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
  63
  64/* Maximum number of DMA channels */
  65#define MIC_MAX_DMA_CHAN 4
  66
  67#endif
  68