drivers/gpu/drm/radeon/rs780.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include "drmP.h"
  29 #include "radeon_reg.h"
  30 #include "radeon.h"
  31
  32 /* rs780  depends on : */
  33 void rs600_mc_disable_clients(struct radeon_device *rdev);
  34
  35 /* This files gather functions specifics to:
  36  * rs780
  37  *
  38  * Some of these functions might be used by newer ASICs.
  39  */
  40 int rs780_mc_wait_for_idle(struct radeon_device *rdev);
  41 void rs780_gpu_init(struct radeon_device *rdev);
  42
  43
  44 /*
  45  * MC
  46  */
  47 int rs780_mc_init(struct radeon_device *rdev)
  48 {
  49         rs780_gpu_init(rdev);
  50         /* FIXME: implement */
  51
  52         rs600_mc_disable_clients(rdev);
  53         if (rs780_mc_wait_for_idle(rdev)) {
  54                 printk(KERN_WARNING "Failed to wait MC idle while "
  55                        "programming pipes. Bad things might happen.\n");
  56         }
  57         return 0;
  58 }
  59
  60 void rs780_mc_fini(struct radeon_device *rdev)
  61 {
  62         /* FIXME: implement */
  63 }
  64
  65
  66 /*
  67  * Global GPU functions
  68  */
  69 void rs780_errata(struct radeon_device *rdev)
  70 {
  71         rdev->pll_errata = 0;
  72 }
  73
  74 int rs780_mc_wait_for_idle(struct radeon_device *rdev)
  75 {
  76         /* FIXME: implement */
  77         return 0;
  78 }
  79
  80 void rs780_gpu_init(struct radeon_device *rdev)
  81 {
  82         /* FIXME: implement */
  83 }
  84
  85
  86 /*
  87  * VRAM info
  88  */
  89 void rs780_vram_get_type(struct radeon_device *rdev)
  90 {
  91         /* FIXME: implement */
  92 }
  93
  94 void rs780_vram_info(struct radeon_device *rdev)
  95 {
  96         rs780_vram_get_type(rdev);
  97
  98         /* FIXME: implement */
  99         /* Could aper size report 0 ? */
 100         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
 101         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
 102 }