e60a9df3a8
Allows *some* DP cards to keep working in some corner cases that most people shouldn't hit. I hit it all the time with development, so this can stay for now. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
346 lines
9.1 KiB
C
346 lines
9.1 KiB
C
/*
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* Copyright (C) 2008 Maarten Maathuis.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "drmP.h"
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#include "drm_crtc_helper.h"
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#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
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#include "nouveau_reg.h"
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#include "nouveau_drv.h"
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#include "nouveau_dma.h"
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#include "nouveau_encoder.h"
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#include "nouveau_connector.h"
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#include "nouveau_crtc.h"
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#include "nv50_display.h"
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static void
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nv50_sor_disconnect(struct nouveau_encoder *nv_encoder)
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{
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struct drm_device *dev = to_drm_encoder(nv_encoder)->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_channel *evo = dev_priv->evo;
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int ret;
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NV_DEBUG_KMS(dev, "Disconnecting SOR %d\n", nv_encoder->or);
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ret = RING_SPACE(evo, 2);
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if (ret) {
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NV_ERROR(dev, "no space while disconnecting SOR\n");
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return;
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}
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BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
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OUT_RING(evo, 0);
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}
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static void
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nv50_sor_dp_link_train(struct drm_encoder *encoder)
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{
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struct drm_device *dev = encoder->dev;
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct bit_displayport_encoder_table *dpe;
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int dpe_headerlen;
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dpe = nouveau_bios_dp_table(dev, nv_encoder->dcb, &dpe_headerlen);
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if (!dpe) {
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NV_ERROR(dev, "SOR-%d: no DP encoder table!\n", nv_encoder->or);
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return;
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}
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if (dpe->script0) {
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NV_DEBUG_KMS(dev, "SOR-%d: running DP script 0\n", nv_encoder->or);
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nouveau_bios_run_init_table(dev, le16_to_cpu(dpe->script0),
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nv_encoder->dcb);
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}
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if (!nouveau_dp_link_train(encoder))
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NV_ERROR(dev, "SOR-%d: link training failed\n", nv_encoder->or);
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if (dpe->script1) {
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NV_DEBUG_KMS(dev, "SOR-%d: running DP script 1\n", nv_encoder->or);
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nouveau_bios_run_init_table(dev, le16_to_cpu(dpe->script1),
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nv_encoder->dcb);
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}
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}
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static void
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nv50_sor_dpms(struct drm_encoder *encoder, int mode)
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{
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struct drm_device *dev = encoder->dev;
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct drm_encoder *enc;
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uint32_t val;
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int or = nv_encoder->or;
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NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode);
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nv_encoder->last_dpms = mode;
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list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
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struct nouveau_encoder *nvenc = nouveau_encoder(enc);
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if (nvenc == nv_encoder ||
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nvenc->disconnect != nv50_sor_disconnect ||
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nvenc->dcb->or != nv_encoder->dcb->or)
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continue;
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if (nvenc->last_dpms == DRM_MODE_DPMS_ON)
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return;
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}
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/* wait for it to be done */
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if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_CTRL(or),
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NV50_PDISPLAY_SOR_DPMS_CTRL_PENDING, 0)) {
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NV_ERROR(dev, "timeout: SOR_DPMS_CTRL_PENDING(%d) == 0\n", or);
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NV_ERROR(dev, "SOR_DPMS_CTRL(%d) = 0x%08x\n", or,
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nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_CTRL(or)));
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}
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val = nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_CTRL(or));
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if (mode == DRM_MODE_DPMS_ON)
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val |= NV50_PDISPLAY_SOR_DPMS_CTRL_ON;
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else
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val &= ~NV50_PDISPLAY_SOR_DPMS_CTRL_ON;
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nv_wr32(dev, NV50_PDISPLAY_SOR_DPMS_CTRL(or), val |
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NV50_PDISPLAY_SOR_DPMS_CTRL_PENDING);
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if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_STATE(or),
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NV50_PDISPLAY_SOR_DPMS_STATE_WAIT, 0)) {
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NV_ERROR(dev, "timeout: SOR_DPMS_STATE_WAIT(%d) == 0\n", or);
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NV_ERROR(dev, "SOR_DPMS_STATE(%d) = 0x%08x\n", or,
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nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(or)));
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}
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if (nv_encoder->dcb->type == OUTPUT_DP && mode == DRM_MODE_DPMS_ON)
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nv50_sor_dp_link_train(encoder);
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}
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static void
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nv50_sor_save(struct drm_encoder *encoder)
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{
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NV_ERROR(encoder->dev, "!!\n");
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}
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static void
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nv50_sor_restore(struct drm_encoder *encoder)
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{
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NV_ERROR(encoder->dev, "!!\n");
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}
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static bool
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nv50_sor_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct nouveau_connector *connector;
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NV_DEBUG_KMS(encoder->dev, "or %d\n", nv_encoder->or);
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connector = nouveau_encoder_connector_get(nv_encoder);
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if (!connector) {
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NV_ERROR(encoder->dev, "Encoder has no connector\n");
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return false;
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}
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if (connector->scaling_mode != DRM_MODE_SCALE_NONE &&
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connector->native_mode) {
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int id = adjusted_mode->base.id;
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*adjusted_mode = *connector->native_mode;
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adjusted_mode->base.id = id;
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}
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return true;
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}
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static void
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nv50_sor_prepare(struct drm_encoder *encoder)
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{
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}
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static void
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nv50_sor_commit(struct drm_encoder *encoder)
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{
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}
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static void
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nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
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struct nouveau_channel *evo = dev_priv->evo;
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct drm_device *dev = encoder->dev;
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struct nouveau_crtc *crtc = nouveau_crtc(encoder->crtc);
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uint32_t mode_ctl = 0;
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int ret;
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NV_DEBUG_KMS(dev, "or %d\n", nv_encoder->or);
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nv50_sor_dpms(encoder, DRM_MODE_DPMS_ON);
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switch (nv_encoder->dcb->type) {
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case OUTPUT_TMDS:
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if (nv_encoder->dcb->sorconf.link & 1) {
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if (adjusted_mode->clock < 165000)
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mode_ctl = 0x0100;
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else
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mode_ctl = 0x0500;
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} else
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mode_ctl = 0x0200;
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break;
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case OUTPUT_DP:
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mode_ctl |= (nv_encoder->dp.mc_unknown << 16);
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if (nv_encoder->dcb->sorconf.link & 1)
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mode_ctl |= 0x00000800;
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else
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mode_ctl |= 0x00000900;
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break;
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default:
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break;
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}
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if (crtc->index == 1)
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mode_ctl |= NV50_EVO_SOR_MODE_CTRL_CRTC1;
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else
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mode_ctl |= NV50_EVO_SOR_MODE_CTRL_CRTC0;
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if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
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mode_ctl |= NV50_EVO_SOR_MODE_CTRL_NHSYNC;
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if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
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mode_ctl |= NV50_EVO_SOR_MODE_CTRL_NVSYNC;
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ret = RING_SPACE(evo, 2);
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if (ret) {
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NV_ERROR(dev, "no space while connecting SOR\n");
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return;
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}
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BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
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OUT_RING(evo, mode_ctl);
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}
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static const struct drm_encoder_helper_funcs nv50_sor_helper_funcs = {
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.dpms = nv50_sor_dpms,
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.save = nv50_sor_save,
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.restore = nv50_sor_restore,
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.mode_fixup = nv50_sor_mode_fixup,
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.prepare = nv50_sor_prepare,
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.commit = nv50_sor_commit,
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.mode_set = nv50_sor_mode_set,
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.detect = NULL
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};
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static void
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nv50_sor_destroy(struct drm_encoder *encoder)
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{
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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if (!encoder)
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return;
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NV_DEBUG_KMS(encoder->dev, "\n");
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drm_encoder_cleanup(encoder);
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kfree(nv_encoder);
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}
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static const struct drm_encoder_funcs nv50_sor_encoder_funcs = {
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.destroy = nv50_sor_destroy,
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};
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int
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nv50_sor_create(struct drm_device *dev, struct dcb_entry *entry)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_encoder *nv_encoder = NULL;
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struct drm_encoder *encoder;
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bool dum;
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int type;
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NV_DEBUG_KMS(dev, "\n");
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switch (entry->type) {
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case OUTPUT_TMDS:
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NV_INFO(dev, "Detected a TMDS output\n");
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type = DRM_MODE_ENCODER_TMDS;
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break;
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case OUTPUT_LVDS:
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NV_INFO(dev, "Detected a LVDS output\n");
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type = DRM_MODE_ENCODER_LVDS;
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if (nouveau_bios_parse_lvds_table(dev, 0, &dum, &dum)) {
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NV_ERROR(dev, "Failed parsing LVDS table\n");
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return -EINVAL;
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}
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break;
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case OUTPUT_DP:
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NV_INFO(dev, "Detected a DP output\n");
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type = DRM_MODE_ENCODER_TMDS;
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break;
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default:
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return -EINVAL;
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}
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nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
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if (!nv_encoder)
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return -ENOMEM;
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encoder = to_drm_encoder(nv_encoder);
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nv_encoder->dcb = entry;
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nv_encoder->or = ffs(entry->or) - 1;
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nv_encoder->disconnect = nv50_sor_disconnect;
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drm_encoder_init(dev, encoder, &nv50_sor_encoder_funcs, type);
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drm_encoder_helper_add(encoder, &nv50_sor_helper_funcs);
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encoder->possible_crtcs = entry->heads;
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encoder->possible_clones = 0;
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if (nv_encoder->dcb->type == OUTPUT_DP) {
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uint32_t mc, or = nv_encoder->or;
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if (dev_priv->chipset < 0x90 ||
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dev_priv->chipset == 0x92 || dev_priv->chipset == 0xa0)
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mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_C(or));
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else
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mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_C(or));
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switch ((mc & 0x00000f00) >> 8) {
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case 8:
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case 9:
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nv_encoder->dp.mc_unknown = (mc & 0x000f0000) >> 16;
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break;
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default:
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break;
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}
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if (!nv_encoder->dp.mc_unknown)
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nv_encoder->dp.mc_unknown = 5;
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}
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return 0;
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}
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