drivers/misc/mic/common/mic_dev.h

   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 /**
  25  * struct mic_mw - MIC memory window
  26  *
  27  * @pa: Base physical address.
  28  * @va: Base ioremap'd virtual address.
  29  * @len: Size of the memory window.
  30  */
  31 struct mic_mw {
  32         phys_addr_t pa;
  33         void __iomem *va;
  34         resource_size_t len;
  35 };
  36
  37 /*
  38  * Scratch pad register offsets used by the host to communicate
  39  * device page DMA address to the card.
  40  */
  41 #define MIC_DPLO_SPAD 14
  42 #define MIC_DPHI_SPAD 15
  43
  44 /*
  45  * These values are supposed to be in the config_change field of the
  46  * device page when the host sends a config change interrupt to the card.
  47  */
  48 #define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
  49 #define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
  50
  51 /* Maximum number of DMA channels */
  52 #define MIC_MAX_DMA_CHAN 4
  53
  54 #endif