Pileus Git - ~andy/linux/blob - drivers/gpu/drm/nouveau/nv04_display.c

   1 /*
   2  * Copyright 2009 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Author: Ben Skeggs
  23  */
  24
  25 #include "drmP.h"
  26 #include "drm.h"
  27 #include "drm_crtc_helper.h"
  28
  29 #include "nouveau_drv.h"
  30 #include "nouveau_fb.h"
  31 #include "nouveau_hw.h"
  32 #include "nouveau_encoder.h"
  33 #include "nouveau_connector.h"
  34
  35 static void nv04_vblank_crtc0_isr(struct drm_device *);
  36 static void nv04_vblank_crtc1_isr(struct drm_device *);
  37
  38 int
  39 nv04_display_early_init(struct drm_device *dev)
  40 {
  41         /* ensure vblank interrupts are off, they can't be enabled until
  42          * drm_vblank has been initialised
  43          */
  44         NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
  45         if (nv_two_heads(dev))
  46                 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
  47
  48         return 0;
  49 }
  50
  51 void
  52 nv04_display_late_takedown(struct drm_device *dev)
  53 {
  54 }
  55
  56 int
  57 nv04_display_create(struct drm_device *dev)
  58 {
  59         struct drm_nouveau_private *dev_priv = dev->dev_private;
  60         struct dcb_table *dcb = &dev_priv->vbios.dcb;
  61         struct drm_connector *connector, *ct;
  62         struct drm_encoder *encoder;
  63         struct drm_crtc *crtc;
  64         int i, ret;
  65
  66         NV_DEBUG_KMS(dev, "\n");
  67
  68         nouveau_hw_save_vga_fonts(dev, 1);
  69
  70         nv04_crtc_create(dev, 0);
  71         if (nv_two_heads(dev))
  72                 nv04_crtc_create(dev, 1);
  73
  74         for (i = 0; i < dcb->entries; i++) {
  75                 struct dcb_output *dcbent = &dcb->entry[i];
  76
  77                 connector = nouveau_connector_create(dev, dcbent->connector);
  78                 if (IS_ERR(connector))
  79                         continue;
  80
  81                 switch (dcbent->type) {
  82                 case DCB_OUTPUT_ANALOG:
  83                         ret = nv04_dac_create(connector, dcbent);
  84                         break;
  85                 case DCB_OUTPUT_LVDS:
  86                 case DCB_OUTPUT_TMDS:
  87                         ret = nv04_dfp_create(connector, dcbent);
  88                         break;
  89                 case DCB_OUTPUT_TV:
  90                         if (dcbent->location == DCB_LOC_ON_CHIP)
  91                                 ret = nv17_tv_create(connector, dcbent);
  92                         else
  93                                 ret = nv04_tv_create(connector, dcbent);
  94                         break;
  95                 default:
  96                         NV_WARN(dev, "DCB type %d not known\n", dcbent->type);
  97                         continue;
  98                 }
  99
 100                 if (ret)
 101                         continue;
 102         }
 103
 104         list_for_each_entry_safe(connector, ct,
 105                                  &dev->mode_config.connector_list, head) {
 106                 if (!connector->encoder_ids[0]) {
 107                         NV_WARN(dev, "%s has no encoders, removing\n",
 108                                 drm_get_connector_name(connector));
 109                         connector->funcs->destroy(connector);
 110                 }
 111         }
 112
 113         /* Save previous state */
 114         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 115                 crtc->funcs->save(crtc);
 116
 117         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 118                 struct drm_encoder_helper_funcs *func = encoder->helper_private;
 119
 120                 func->save(encoder);
 121         }
 122
 123         nouveau_irq_register(dev, 24, nv04_vblank_crtc0_isr);
 124         nouveau_irq_register(dev, 25, nv04_vblank_crtc1_isr);
 125         return 0;
 126 }
 127
 128 void
 129 nv04_display_destroy(struct drm_device *dev)
 130 {
 131         struct drm_encoder *encoder;
 132         struct drm_crtc *crtc;
 133
 134         NV_DEBUG_KMS(dev, "\n");
 135
 136         nouveau_irq_unregister(dev, 24);
 137         nouveau_irq_unregister(dev, 25);
 138
 139         /* Turn every CRTC off. */
 140         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 141                 struct drm_mode_set modeset = {
 142                         .crtc = crtc,
 143                 };
 144
 145                 crtc->funcs->set_config(&modeset);
 146         }
 147
 148         /* Restore state */
 149         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 150                 struct drm_encoder_helper_funcs *func = encoder->helper_private;
 151
 152                 func->restore(encoder);
 153         }
 154
 155         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 156                 crtc->funcs->restore(crtc);
 157
 158         nouveau_hw_save_vga_fonts(dev, 0);
 159 }
 160
 161 int
 162 nv04_display_init(struct drm_device *dev)
 163 {
 164         struct drm_encoder *encoder;
 165         struct drm_crtc *crtc;
 166
 167         /* meh.. modeset apparently doesn't setup all the regs and depends
 168          * on pre-existing state, for now load the state of the card *before*
 169          * nouveau was loaded, and then do a modeset.
 170          *
 171          * best thing to do probably is to make save/restore routines not
 172          * save/restore "pre-load" state, but more general so we can save
 173          * on suspend too.
 174          */
 175         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 176                 struct drm_encoder_helper_funcs *func = encoder->helper_private;
 177
 178                 func->restore(encoder);
 179         }
 180
 181         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 182                 crtc->funcs->restore(crtc);
 183
 184         return 0;
 185 }
 186
 187 void
 188 nv04_display_fini(struct drm_device *dev)
 189 {
 190         /* disable vblank interrupts */
 191         NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
 192         if (nv_two_heads(dev))
 193                 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
 194 }
 195
 196 static void
 197 nv04_vblank_crtc0_isr(struct drm_device *dev)
 198 {
 199         nv_wr32(dev, NV_CRTC0_INTSTAT, NV_CRTC_INTR_VBLANK);
 200         drm_handle_vblank(dev, 0);
 201 }
 202
 203 static void
 204 nv04_vblank_crtc1_isr(struct drm_device *dev)
 205 {
 206         nv_wr32(dev, NV_CRTC1_INTSTAT, NV_CRTC_INTR_VBLANK);
 207         drm_handle_vblank(dev, 1);
 208 }