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1/*2 * Copyright 2009 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Author: Ben Skeggs23 */24 25#include <drm/drm_crtc_helper.h>26 27#include "nouveau_drv.h"28#include "nouveau_reg.h"29#include "hw.h"30#include "nouveau_encoder.h"31#include "nouveau_connector.h"32#include "nouveau_bo.h"33#include "nouveau_gem.h"34#include "nouveau_chan.h"35 36#include <nvif/if0004.h>37 38struct nouveau_connector *39nv04_encoder_get_connector(struct nouveau_encoder *encoder)40{41 struct drm_device *dev = to_drm_encoder(encoder)->dev;42 struct drm_connector *connector;43 struct drm_connector_list_iter conn_iter;44 struct nouveau_connector *nv_connector = NULL;45 46 drm_connector_list_iter_begin(dev, &conn_iter);47 drm_for_each_connector_iter(connector, &conn_iter) {48 if (connector->encoder == to_drm_encoder(encoder))49 nv_connector = nouveau_connector(connector);50 }51 drm_connector_list_iter_end(&conn_iter);52 53 return nv_connector;54}55 56static void57nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend)58{59 struct nouveau_drm *drm = nouveau_drm(dev);60 struct nv04_display *disp = nv04_display(dev);61 struct drm_crtc *crtc;62 63 /* Disable flip completion events. */64 nvif_event_block(&disp->flip);65 66 /* Disable vblank interrupts. */67 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);68 if (nv_two_heads(dev))69 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);70 71 if (!runtime && !drm->headless)72 cancel_work_sync(&drm->hpd_work);73 74 if (!suspend)75 return;76 77 /* Un-pin FB and cursors so they'll be evicted to system memory. */78 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {79 struct drm_framebuffer *fb = crtc->primary->fb;80 struct nouveau_bo *nvbo;81 82 if (!fb || !fb->obj[0])83 continue;84 nvbo = nouveau_gem_object(fb->obj[0]);85 nouveau_bo_unpin(nvbo);86 }87 88 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {89 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);90 if (nv_crtc->cursor.nvbo) {91 if (nv_crtc->cursor.set_offset)92 nouveau_bo_unmap(nv_crtc->cursor.nvbo);93 nouveau_bo_unpin(nv_crtc->cursor.nvbo);94 }95 }96}97 98static int99nv04_display_init(struct drm_device *dev, bool resume, bool runtime)100{101 struct nv04_display *disp = nv04_display(dev);102 struct nouveau_drm *drm = nouveau_drm(dev);103 struct nouveau_encoder *encoder;104 struct drm_crtc *crtc;105 int ret;106 107 /* meh.. modeset apparently doesn't setup all the regs and depends108 * on pre-existing state, for now load the state of the card *before*109 * nouveau was loaded, and then do a modeset.110 *111 * best thing to do probably is to make save/restore routines not112 * save/restore "pre-load" state, but more general so we can save113 * on suspend too.114 */115 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {116 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);117 nv_crtc->save(&nv_crtc->base);118 }119 120 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)121 encoder->enc_save(&encoder->base.base);122 123 /* Enable flip completion events. */124 nvif_event_allow(&disp->flip);125 126 if (!resume)127 return 0;128 129 /* Re-pin FB/cursors. */130 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {131 struct drm_framebuffer *fb = crtc->primary->fb;132 struct nouveau_bo *nvbo;133 134 if (!fb || !fb->obj[0])135 continue;136 nvbo = nouveau_gem_object(fb->obj[0]);137 ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, true);138 if (ret)139 NV_ERROR(drm, "Could not pin framebuffer\n");140 }141 142 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {143 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);144 if (!nv_crtc->cursor.nvbo)145 continue;146 147 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo,148 NOUVEAU_GEM_DOMAIN_VRAM, true);149 if (!ret && nv_crtc->cursor.set_offset)150 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);151 if (ret)152 NV_ERROR(drm, "Could not pin/map cursor.\n");153 }154 155 /* Force CLUT to get re-loaded during modeset. */156 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {157 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);158 159 nv_crtc->lut.depth = 0;160 }161 162 /* This should ensure we don't hit a locking problem when someone163 * wakes us up via a connector. We should never go into suspend164 * while the display is on anyways.165 */166 if (runtime)167 return 0;168 169 /* Restore mode. */170 drm_helper_resume_force_mode(dev);171 172 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {173 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);174 175 if (!nv_crtc->cursor.nvbo)176 continue;177 178 if (nv_crtc->cursor.set_offset)179 nv_crtc->cursor.set_offset(nv_crtc,180 nv_crtc->cursor.nvbo->offset);181 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,182 nv_crtc->cursor_saved_y);183 }184 185 return 0;186}187 188static void189nv04_display_destroy(struct drm_device *dev)190{191 struct nv04_display *disp = nv04_display(dev);192 struct nouveau_encoder *encoder;193 struct nouveau_crtc *nv_crtc;194 195 /* Restore state */196 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)197 encoder->enc_restore(&encoder->base.base);198 199 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head)200 nv_crtc->restore(&nv_crtc->base);201 202 nouveau_hw_save_vga_fonts(dev, 0);203 204 nvif_event_dtor(&disp->flip);205 206 nouveau_display(dev)->priv = NULL;207 vfree(disp);208}209 210int211nv04_display_create(struct drm_device *dev)212{213 struct nouveau_drm *drm = nouveau_drm(dev);214 struct nvkm_i2c *i2c = nvxx_i2c(drm);215 struct dcb_table *dcb = &drm->vbios.dcb;216 struct drm_connector *connector, *ct;217 struct drm_encoder *encoder;218 struct nouveau_encoder *nv_encoder;219 struct nouveau_crtc *crtc;220 struct nv04_display *disp;221 int i, ret;222 223 disp = vzalloc(sizeof(*disp));224 if (!disp)225 return -ENOMEM;226 227 disp->drm = drm;228 229 nouveau_display(dev)->priv = disp;230 nouveau_display(dev)->dtor = nv04_display_destroy;231 nouveau_display(dev)->init = nv04_display_init;232 nouveau_display(dev)->fini = nv04_display_fini;233 234 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */235 dev->driver_features &= ~DRIVER_ATOMIC;236 237 /* Request page flip completion event. */238 if (drm->channel) {239 ret = nvif_event_ctor(&drm->channel->nvsw, "kmsFlip", 0, nv04_flip_complete,240 true, NULL, 0, &disp->flip);241 if (ret)242 return ret;243 }244 245 nouveau_hw_save_vga_fonts(dev, 1);246 247 nv04_crtc_create(dev, 0);248 if (nv_two_heads(dev))249 nv04_crtc_create(dev, 1);250 251 for (i = 0; i < dcb->entries; i++) {252 struct dcb_output *dcbent = &dcb->entry[i];253 254 connector = nouveau_connector_create(dev, dcbent->connector);255 if (IS_ERR(connector))256 continue;257 258 switch (dcbent->type) {259 case DCB_OUTPUT_ANALOG:260 ret = nv04_dac_create(connector, dcbent);261 break;262 case DCB_OUTPUT_LVDS:263 case DCB_OUTPUT_TMDS:264 ret = nv04_dfp_create(connector, dcbent);265 break;266 case DCB_OUTPUT_TV:267 if (dcbent->location == DCB_LOC_ON_CHIP)268 ret = nv17_tv_create(connector, dcbent);269 else270 ret = nv04_tv_create(connector, dcbent);271 break;272 default:273 NV_WARN(drm, "DCB type %d not known\n", dcbent->type);274 continue;275 }276 277 if (ret)278 continue;279 }280 281 list_for_each_entry_safe(connector, ct,282 &dev->mode_config.connector_list, head) {283 if (!connector->possible_encoders) {284 NV_WARN(drm, "%s has no encoders, removing\n",285 connector->name);286 connector->funcs->destroy(connector);287 }288 }289 290 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {291 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);292 struct nvkm_i2c_bus *bus =293 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index);294 nv_encoder->i2c = bus ? &bus->i2c : NULL;295 }296 297 /* Save previous state */298 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)299 crtc->save(&crtc->base);300 301 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head)302 nv_encoder->enc_save(&nv_encoder->base.base);303 304 nouveau_overlay_init(dev);305 306 return 0;307}308