drivers/staging/gma500/psb_pvr_glue.c

   1 /*
   2  * Copyright (c) 2009, Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with
  14  * this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  16  *
  17  */
  18
  19 #include "psb_pvr_glue.h"
  20
  21 /**
  22  * FIXME: should NOT use these file under env/linux directly
  23  */
  24
  25 int psb_get_meminfo_by_handle(void *hKernelMemInfo,
  26                                 void **ppsKernelMemInfo)
  27 {
  28         return -EINVAL;
  29 #if 0
  30         void *psKernelMemInfo = IMG_NULL;
  31         PVRSRV_PER_PROCESS_DATA *psPerProc = IMG_NULL;
  32         PVRSRV_ERROR eError;
  33
  34         psPerProc = PVRSRVPerProcessData(task_tgid_nr(current));
  35         eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
  36                                     (IMG_VOID *)&psKernelMemInfo,
  37                                     hKernelMemInfo,
  38                                     PVRSRV_HANDLE_TYPE_MEM_INFO);
  39         if (eError != PVRSRV_OK) {
  40                 DRM_ERROR("Cannot find kernel meminfo for handle 0x%x\n",
  41                           (u32)hKernelMemInfo);
  42                 return -EINVAL;
  43         }
  44
  45         *ppsKernelMemInfo = psKernelMemInfo;
  46
  47         DRM_DEBUG("Got Kernel MemInfo for handle %lx\n",
  48                   (u32)hKernelMemInfo);
  49         return 0;
  50 #endif
  51 }
  52
  53 int psb_get_pages_by_mem_handle(void *hOSMemHandle, struct page ***pages)
  54 {
  55         return -EINVAL;
  56 #if 0
  57         LinuxMemArea *psLinuxMemArea = (LinuxMemArea *)hOSMemHandle;
  58         struct page **page_list;
  59         if (psLinuxMemArea->eAreaType != LINUX_MEM_AREA_ALLOC_PAGES) {
  60                 DRM_ERROR("MemArea type is not LINUX_MEM_AREA_ALLOC_PAGES\n");
  61                 return -EINVAL;
  62         }
  63
  64         page_list = psLinuxMemArea->uData.sPageList.pvPageList;
  65         if (!page_list) {
  66                 DRM_DEBUG("Page List is NULL\n");
  67                 return -ENOMEM;
  68         }
  69
  70         *pages = page_list;
  71         return 0;
  72 #endif
  73 }