/*
* Copyright 2009 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Author: Ben Skeggs
*/
#include <drm/drm_crtc_helper.h>
#include "nouveau_drv.h"
#include "nouveau_reg.h"
#include "hw.h"
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_bo.h"
#include "nouveau_gem.h"
#include "nouveau_chan.h"
#include <nvif/if0004.h>
struct nouveau_connector *
nv04_encoder_get_connector(struct nouveau_encoder *encoder)
{
struct drm_device *dev = to_drm_encoder(encoder)->dev;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
struct nouveau_connector *nv_connector = NULL;
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->encoder == to_drm_encoder(encoder))
nv_connector = nouveau_connector(connector);
}
drm_connector_list_iter_end(&conn_iter);
return nv_connector;
}
static void
nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nv04_display *disp = nv04_display(dev);
struct drm_crtc *crtc;
/* Disable flip completion events. */
nvif_event_block(&disp->flip);
/* Disable vblank interrupts. */
NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
if (nv_two_heads(dev))
NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
if (!runtime && !drm->headless)
cancel_work_sync(&drm->hpd_work);
if (!suspend)
return;
/* Un-pin FB and cursors so they'll be evicted to system memory. */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct drm_framebuffer *fb = crtc->primary->fb;
struct nouveau_bo *nvbo;
if (!fb || !fb->obj[0])
continue;
nvbo = nouveau_gem_object(fb->obj[0]);
nouveau_bo_unpin(nvbo);
}
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (nv_crtc->cursor.nvbo) {
if (nv_crtc->cursor.set_offset)
nouveau_bo_unmap(nv_crtc->cursor.nvbo);
nouveau_bo_unpin(nv_crtc->cursor.nvbo);
}
}
}
static int
nv04_display_init(struct drm_device *dev, bool resume, bool runtime)
{
struct nv04_display *disp = nv04_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_encoder *encoder;
struct drm_crtc *crtc;
int ret;
/* meh.. modeset apparently doesn't setup all the regs and depends
* on pre-existing state, for now load the state of the card *before*
* nouveau was loaded, and then do a modeset.
*
* best thing to do probably is to make save/restore routines not
* save/restore "pre-load" state, but more general so we can save
* on suspend too.
*/
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
nv_crtc->save(&nv_crtc->base);
}
list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)
encoder->enc_save(&encoder->base.base);
/* Enable flip completion events. */
nvif_event_allow(&disp->flip);
if (!resume)
return 0;
/* Re-pin FB/cursors. */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct drm_framebuffer *fb = crtc->primary->fb;
struct nouveau_bo *nvbo;
if (!fb || !fb->obj[0])
continue;
nvbo = nouveau_gem_object(fb->obj[0]);
ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, true);
if (ret)
NV_ERROR(drm, "Could not pin framebuffer\n");
}
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (!nv_crtc->cursor.nvbo)
continue;
ret = nouveau_bo_pin(nv_crtc->cursor.nvbo,
NOUVEAU_GEM_DOMAIN_VRAM, true);
if (!ret && nv_crtc->cursor.set_offset)
ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
if (ret)
NV_ERROR(drm, "Could not pin/map cursor.\n");
}
/* Force CLUT to get re-loaded during modeset. */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
nv_crtc->lut.depth = 0;
}
/* This should ensure we don't hit a locking problem when someone
* wakes us up via a connector. We should never go into suspend
* while the display is on anyways.
*/
if (runtime)
return 0;
/* Restore mode. */
drm_helper_resume_force_mode(dev);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (!nv_crtc->cursor.nvbo)
continue;
if (nv_crtc->cursor.set_offset)
nv_crtc->cursor.set_offset(nv_crtc,
nv_crtc->cursor.nvbo->offset);
nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
nv_crtc->cursor_saved_y);
}
return 0;
}
static void
nv04_display_destroy(struct drm_device *dev)
{
struct nv04_display *disp = nv04_display(dev);
struct nouveau_encoder *encoder;
struct nouveau_crtc *nv_crtc;
/* Restore state */
list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)
encoder->enc_restore(&encoder->base.base);
list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head)
nv_crtc->restore(&nv_crtc->base);
nouveau_hw_save_vga_fonts(dev, 0);
nvif_event_dtor(&disp->flip);
nouveau_display(dev)->priv = NULL;
vfree(disp);
}
int
nv04_display_create(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvkm_i2c *i2c = nvxx_i2c(drm);
struct dcb_table *dcb = &drm->vbios.dcb;
struct drm_connector *connector, *ct;
struct drm_encoder *encoder;
struct nouveau_encoder *nv_encoder;
struct nouveau_crtc *crtc;
struct nv04_display *disp;
int i, ret;
disp = vzalloc(sizeof(*disp));
if (!disp)
return -ENOMEM;
disp->drm = drm;
nouveau_display(dev)->priv = disp;
nouveau_display(dev)->dtor = nv04_display_destroy;
nouveau_display(dev)->init = nv04_display_init;
nouveau_display(dev)->fini = nv04_display_fini;
/* Pre-nv50 doesn't support atomic, so don't expose the ioctls */
dev->driver_features &= ~DRIVER_ATOMIC;
/* Request page flip completion event. */
if (drm->channel) {
ret = nvif_event_ctor(&drm->channel->nvsw, "kmsFlip", 0, nv04_flip_complete,
true, NULL, 0, &disp->flip);
if (ret)
return ret;
}
nouveau_hw_save_vga_fonts(dev, 1);
nv04_crtc_create(dev, 0);
if (nv_two_heads(dev))
nv04_crtc_create(dev, 1);
for (i = 0; i < dcb->entries; i++) {
struct dcb_output *dcbent = &dcb->entry[i];
connector = nouveau_connector_create(dev, dcbent->connector);
if (IS_ERR(connector))
continue;
switch (dcbent->type) {
case DCB_OUTPUT_ANALOG:
ret = nv04_dac_create(connector, dcbent);
break;
case DCB_OUTPUT_LVDS:
case DCB_OUTPUT_TMDS:
ret = nv04_dfp_create(connector, dcbent);
break;
case DCB_OUTPUT_TV:
if (dcbent->location == DCB_LOC_ON_CHIP)
ret = nv17_tv_create(connector, dcbent);
else
ret = nv04_tv_create(connector, dcbent);
break;
default:
NV_WARN(drm, "DCB type %d not known\n", dcbent->type);
continue;
}
if (ret)
continue;
}
list_for_each_entry_safe(connector, ct,
&dev->mode_config.connector_list, head) {
if (!connector->possible_encoders) {
NV_WARN(drm, "%s has no encoders, removing\n",
connector->name);
connector->funcs->destroy(connector);
}
}
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nvkm_i2c_bus *bus =
nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index);
nv_encoder->i2c = bus ? &bus->i2c : NULL;
}
/* Save previous state */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
crtc->save(&crtc->base);
list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head)
nv_encoder->enc_save(&nv_encoder->base.base);
nouveau_overlay_init(dev);
return 0;
}
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