drivers/staging/media/atomisp/pci/atomisp2/hrt/hive_isp_css_mm_hrt.h

   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  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20  * 02110-1301, USA.
  21  *
  22  */
  23
  24 #ifndef _hive_isp_css_mm_hrt_h_
  25 #define _hive_isp_css_mm_hrt_h_
  26
  27 #include <hmm/hmm.h>
  28 #include <hrt/hive_isp_css_custom_host_hrt.h>
  29
  30 #define HRT_BUF_FLAG_CACHED (1 << 0)
  31
  32 enum hrt_userptr_type {
  33         HRT_USR_PTR = 0,
  34 #ifdef CONFIG_ION
  35         HRT_USR_ION,
  36 #endif
  37 };
  38
  39 struct hrt_userbuffer_attr {
  40         enum hrt_userptr_type   type;
  41         unsigned int            pgnr;
  42 };
  43
  44 void hrt_isp_css_mm_set_user_ptr(void *userptr,
  45                                 unsigned int num_pages, enum hrt_userptr_type);
  46
  47 /* Allocate memory, returns a virtual address */
  48 ia_css_ptr hrt_isp_css_mm_alloc(size_t bytes);
  49 ia_css_ptr hrt_isp_css_mm_alloc_user_ptr(size_t bytes, void *userptr,
  50                                     unsigned int num_pages,
  51                                     enum hrt_userptr_type,
  52                                     bool cached);
  53 ia_css_ptr hrt_isp_css_mm_alloc_cached(size_t bytes);
  54
  55 /* allocate memory and initialize with zeros,
  56    returns a virtual address */
  57 ia_css_ptr hrt_isp_css_mm_calloc(size_t bytes);
  58 ia_css_ptr hrt_isp_css_mm_calloc_cached(size_t bytes);
  59
  60 #endif /* _hive_isp_css_mm_hrt_h_ */