835aadbef3
It turns out that the display engine signals an interrupt for disconnects too. In order to make it easier to process the display interrupts correctly, we want to ensure we only get one operation per interrupt sequence - this is what this commit achieves. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
314 lines
8.8 KiB
C
314 lines
8.8 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_dac_disconnect(struct drm_encoder *encoder)
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{
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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 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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if (!nv_encoder->crtc)
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return;
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nv50_crtc_blank(nouveau_crtc(nv_encoder->crtc), true);
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NV_DEBUG_KMS(dev, "Disconnecting DAC %d\n", nv_encoder->or);
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ret = RING_SPACE(evo, 4);
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if (ret) {
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NV_ERROR(dev, "no space while disconnecting DAC\n");
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return;
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}
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BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 1);
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OUT_RING (evo, 0);
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BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
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OUT_RING (evo, 0);
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nv_encoder->crtc = NULL;
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}
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static enum drm_connector_status
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nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector)
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{
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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 drm_nouveau_private *dev_priv = dev->dev_private;
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enum drm_connector_status status = connector_status_disconnected;
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uint32_t dpms_state, load_pattern, load_state;
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int or = nv_encoder->or;
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nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(or), 0x00000001);
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dpms_state = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or));
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nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
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0x00150000 | NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
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if (!nv_wait(NV50_PDISPLAY_DAC_DPMS_CTRL(or),
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NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) {
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NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or);
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NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or,
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nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)));
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return status;
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}
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/* Use bios provided value if possible. */
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if (dev_priv->vbios.dactestval) {
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load_pattern = dev_priv->vbios.dactestval;
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NV_DEBUG_KMS(dev, "Using bios provided load_pattern of %d\n",
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load_pattern);
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} else {
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load_pattern = 340;
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NV_DEBUG_KMS(dev, "Using default load_pattern of %d\n",
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load_pattern);
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}
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nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or),
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NV50_PDISPLAY_DAC_LOAD_CTRL_ACTIVE | load_pattern);
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mdelay(45); /* give it some time to process */
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load_state = nv_rd32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or));
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nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or), 0);
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nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), dpms_state |
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NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
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if ((load_state & NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT) ==
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NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT)
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status = connector_status_connected;
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if (status == connector_status_connected)
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NV_DEBUG_KMS(dev, "Load was detected on output with or %d\n", or);
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else
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NV_DEBUG_KMS(dev, "Load was not detected on output with or %d\n", or);
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return status;
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}
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static void
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nv50_dac_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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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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/* wait for it to be done */
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if (!nv_wait(NV50_PDISPLAY_DAC_DPMS_CTRL(or),
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NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) {
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NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or);
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NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or,
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nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)));
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return;
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}
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val = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)) & ~0x7F;
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if (mode != DRM_MODE_DPMS_ON)
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val |= NV50_PDISPLAY_DAC_DPMS_CTRL_BLANKED;
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switch (mode) {
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case DRM_MODE_DPMS_STANDBY:
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val |= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF;
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break;
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case DRM_MODE_DPMS_SUSPEND:
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val |= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF;
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break;
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case DRM_MODE_DPMS_OFF:
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val |= NV50_PDISPLAY_DAC_DPMS_CTRL_OFF;
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val |= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF;
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val |= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF;
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break;
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default:
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break;
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}
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nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), val |
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NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
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}
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static void
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nv50_dac_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_dac_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_dac_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_dac_prepare(struct drm_encoder *encoder)
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{
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}
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static void
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nv50_dac_commit(struct drm_encoder *encoder)
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{
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}
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static void
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nv50_dac_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 nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct drm_device *dev = 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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struct nouveau_crtc *crtc = nouveau_crtc(encoder->crtc);
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uint32_t mode_ctl = 0, mode_ctl2 = 0;
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int ret;
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NV_DEBUG_KMS(dev, "or %d type %d crtc %d\n",
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nv_encoder->or, nv_encoder->dcb->type, crtc->index);
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nv50_dac_dpms(encoder, DRM_MODE_DPMS_ON);
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if (crtc->index == 1)
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mode_ctl |= NV50_EVO_DAC_MODE_CTRL_CRTC1;
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else
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mode_ctl |= NV50_EVO_DAC_MODE_CTRL_CRTC0;
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/* Lacking a working tv-out, this is not a 100% sure. */
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if (nv_encoder->dcb->type == OUTPUT_ANALOG)
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mode_ctl |= 0x40;
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else
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if (nv_encoder->dcb->type == OUTPUT_TV)
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mode_ctl |= 0x100;
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if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
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mode_ctl2 |= NV50_EVO_DAC_MODE_CTRL2_NHSYNC;
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if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
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mode_ctl2 |= NV50_EVO_DAC_MODE_CTRL2_NVSYNC;
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ret = RING_SPACE(evo, 3);
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if (ret) {
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NV_ERROR(dev, "no space while connecting DAC\n");
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return;
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}
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BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 2);
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OUT_RING(evo, mode_ctl);
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OUT_RING(evo, mode_ctl2);
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nv_encoder->crtc = encoder->crtc;
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}
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static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = {
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.dpms = nv50_dac_dpms,
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.save = nv50_dac_save,
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.restore = nv50_dac_restore,
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.mode_fixup = nv50_dac_mode_fixup,
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.prepare = nv50_dac_prepare,
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.commit = nv50_dac_commit,
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.mode_set = nv50_dac_mode_set,
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.detect = nv50_dac_detect,
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.disable = nv50_dac_disconnect
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};
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static void
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nv50_dac_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_dac_encoder_funcs = {
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.destroy = nv50_dac_destroy,
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};
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int
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nv50_dac_create(struct drm_connector *connector, struct dcb_entry *entry)
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{
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struct nouveau_encoder *nv_encoder;
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struct drm_encoder *encoder;
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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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drm_encoder_init(connector->dev, encoder, &nv50_dac_encoder_funcs,
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DRM_MODE_ENCODER_DAC);
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drm_encoder_helper_add(encoder, &nv50_dac_helper_funcs);
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encoder->possible_crtcs = entry->heads;
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encoder->possible_clones = 0;
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drm_mode_connector_attach_encoder(connector, encoder);
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return 0;
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}
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