LXR linux/drivers/staging/media/atomisp/pci/atomisp2/hrt/hive_isp_css_mm

   1/*
   2 * Support for Medfield PNW Camera Imaging ISP subsystem.
   3 *
   4 * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
   5 *
   6 * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License version
  10 * 2 as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 *
  18 */
  19
  20#ifndef _hive_isp_css_mm_hrt_h_
  21#define _hive_isp_css_mm_hrt_h_
  22
  23#include <hmm/hmm.h>
  24#include <hrt/hive_isp_css_custom_host_hrt.h>
  25
  26#define HRT_BUF_FLAG_CACHED (1 << 0)
  27
  28enum hrt_userptr_type {
  29        HRT_USR_PTR = 0,
  30#ifdef CONFIG_ION
  31        HRT_USR_ION,
  32#endif
  33};
  34
  35struct hrt_userbuffer_attr {
  36        enum hrt_userptr_type   type;
  37        unsigned int            pgnr;
  38};
  39
  40void hrt_isp_css_mm_set_user_ptr(void *userptr,
  41                                unsigned int num_pages, enum hrt_userptr_type);
  42
  43/* Allocate memory, returns a virtual address */
  44ia_css_ptr hrt_isp_css_mm_alloc(size_t bytes);
  45ia_css_ptr hrt_isp_css_mm_alloc_user_ptr(size_t bytes, void *userptr,
  46                                    unsigned int num_pages,
  47                                    enum hrt_userptr_type,
  48                                    bool cached);
  49ia_css_ptr hrt_isp_css_mm_alloc_cached(size_t bytes);
  50
  51/* allocate memory and initialize with zeros,
  52   returns a virtual address */
  53ia_css_ptr hrt_isp_css_mm_calloc(size_t bytes);
  54ia_css_ptr hrt_isp_css_mm_calloc_cached(size_t bytes);
  55
  56#endif /* _hive_isp_css_mm_hrt_h_ */
  57