search for: get_tmds_link_bandwidth

From: Hauke Mehrtens <hauke at hauke-m.de> Without this patch a pixel clock rate above 165 MHz on a TMDS link is assumed to be dual link. This is true for DVI, but not for HDMI. HDMI supports no dual link, but it supports pixel clock rates above 165 MHz. Only activate Dual Link mode when it is actually possible and requested. Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>

From: Hauke Mehrtens <hauke at hauke-m.de> Without this patch a pixel clock rate above 165 MHz on a TMDS link is assumed to be dual link. This is true for DVI, but not for HDMI. HDMI supports no dual link, but it supports pixel clock rates above 165 MHz. Only activate Dual Link mode when it is actually possible and requested. Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>

This is the beginnings of HDMI 2.0 support. All of the "extra" features are left out, such as 12/16bpc, YUV420, etc. I've verified that with this code, a GP108 (GT1030) can switch between 4k at 60 and 1920x1080 at 60 on a LG 4K TV. Further, I've verified via i2c tools, that the SCDC writes really do happen. I suspect that the patch for keeping track of the high-speed TMDS

...E_ENCODER_TMDS; > break; > diff --git a/drm/nouveau/nouveau_connector.c b/drm/nouveau/nouveau_connector.c > index 074e6d52..65fac604 100644 > --- a/drm/nouveau/nouveau_connector.c > +++ b/drm/nouveau/nouveau_connector.c > @@ -980,15 +980,20 @@ static unsigned > get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi) > { > struct nouveau_connector *nv_connector = nouveau_connector(connector); > + struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; > struct nouveau_drm *drm = nouveau_drm(connector->dev); >...

...DE_ENCODER_TMDS; > break; > diff --git a/drm/nouveau/nouveau_connector.c b/drm/nouveau/nouveau_connector.c > index 074e6d52..a955f225 100644 > --- a/drm/nouveau/nouveau_connector.c > +++ b/drm/nouveau/nouveau_connector.c > @@ -980,9 +980,14 @@ static unsigned > get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi) > { > struct nouveau_connector *nv_connector = nouveau_connector(connector); > + struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; > struct nouveau_drm *drm = nouveau_drm(connector->dev); >...

...H << 19) / asyh->view.oW; diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 856b3ef5edb8..938832a6af15 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1034,7 +1034,7 @@ get_tmds_link_bandwidth(struct drm_connector *connector) unsigned duallink_scale = nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; - if (drm_detect_hdmi_monitor(nv_connector->edid)) { + if (nv_connector->base.display_info.is_hdmi) { info = &nv_connector->base.display_in...

...;view.oW; > diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c > index 856b3ef5edb8..938832a6af15 100644 > --- a/drivers/gpu/drm/nouveau/nouveau_connector.c > +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c > @@ -1034,7 +1034,7 @@ get_tmds_link_bandwidth(struct drm_connector *connector) > unsigned duallink_scale = > nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; > > - if (drm_detect_hdmi_monitor(nv_connector->edid)) { > + if (nv_connector->base.display_info.is_h...

...changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 6ed9cb053..52b425cdf 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1005,7 +1005,7 @@ get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi) return 112000; } -static int +static enum drm_mode_status nouveau_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { -- 2.17.0

...ODER_TMDS; + break; default: type = DRM_MODE_ENCODER_TMDS; break; diff --git a/drm/nouveau/nouveau_connector.c b/drm/nouveau/nouveau_connector.c index 074e6d52..a955f225 100644 --- a/drm/nouveau/nouveau_connector.c +++ b/drm/nouveau/nouveau_connector.c @@ -980,9 +980,14 @@ static unsigned get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi) { struct nouveau_connector *nv_connector = nouveau_connector(connector); + struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; struct nouveau_drm *drm = nouveau_drm(connector->dev); struct dcb_output *dcb = nv_connector->d...

...DER_TMDS; + break; default: type = DRM_MODE_ENCODER_TMDS; break; diff --git a/drm/nouveau/nouveau_connector.c b/drm/nouveau/nouveau_connector.c index 074e6d52..65fac604 100644 --- a/drm/nouveau/nouveau_connector.c +++ b/drm/nouveau/nouveau_connector.c @@ -980,15 +980,20 @@ static unsigned get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi) { struct nouveau_connector *nv_connector = nouveau_connector(connector); + struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; struct nouveau_drm *drm = nouveau_drm(connector->dev); struct dcb_output *dcb = nv_connector->d...

...break; >> diff --git a/drm/nouveau/nouveau_connector.c b/drm/nouveau/nouveau_connector.c >> index 074e6d52..65fac604 100644 >> --- a/drm/nouveau/nouveau_connector.c >> +++ b/drm/nouveau/nouveau_connector.c >> @@ -980,15 +980,20 @@ static unsigned >> get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi) >> { >> struct nouveau_connector *nv_connector = nouveau_connector(connector); >> + struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; >> struct nouveau_drm *drm = nouveau_drm(connector-&...

...u/drm/nouveau/nouveau_connector.c @@ -38,6 +38,7 @@ #include "nouveau_reg.h" #include "nouveau_drv.h" #include "dispnv04/hw.h" +#include "dispnv50/disp.h" #include "nouveau_acpi.h" #include "nouveau_display.h" @@ -1033,6 +1034,24 @@ get_tmds_link_bandwidth(struct drm_connector *connector) return 112000 * duallink_scale; } +enum drm_mode_status +nouveau_conn_mode_clock_valid(const struct drm_display_mode *mode, + const unsigned min_clock, + const unsigned max_clock, + unsigned *clock) +{ + if ((mode->flags & DRM_MO...

These patches are adding support for outputting 2560x1440 at 56 over HDMI. This needs a pixel clock of 225 MHz which was not supported before. This was tested in a dual monitor setup with a GF114 (GTX 560 TI) and one HDMI monitor running with 2560x1440 at 56 and one DVI monitor running with 1920x1200 at 60. This still needs testing on other graphics cards and with dual link DVI. There is no

...1 insertions(+), 31 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 49dd0cbc332f..6f21f36719fc 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1023,29 +1023,6 @@ get_tmds_link_bandwidth(struct drm_connector *connector) return 112000 * duallink_scale; } -enum drm_mode_status -nouveau_conn_mode_clock_valid(const struct drm_display_mode *mode, - const unsigned min_clock, - const unsigned max_clock, - unsigned int *clock_out) -{ - unsigned int clock = mod...

THIS IS UNTESTED for anything other than i915. Use previously parsed EDID where possible for display audio/hdmi detection. This in turn reduces edid_blob_ptr usage in a number of places. Further reduce edid_blob_ptr usage, and document that it should not be used by drivers directly. BR, Jani. Cc: Alain Volmat <alain.volmat at foss.st.com> Cc: Alex Deucher <alexander.deucher at

Just a backport of the two patches for v5.9 that you'll want to apply. The first one was Cc'd to stable, but I forgot to Cc the second one as well. Lyude Paul (2): drm/nouveau/kms/nv50-: Get rid of bogus nouveau_conn_mode_valid() drm/nouveau/kms/nv50-: Fix clock checking algorithm in nv50_dp_mode_valid() drivers/gpu/drm/nouveau/nouveau_connector.c | 36 ++++++---------------

These patches are adding support for outputting 2560x1440 at 56 over HDMI. This needs a pixel clock of 225 MHz which was not supported before. This was tested in a dual monitor setup with a GF114 (GTX 560 TI) and one HDMI monitor running with 2560x1440 at 56 and one DVI monitor running with 1920x1200 at 60. This still needs testing on other graphics cards and with dual link DVI. There is no

...is worked around the mode is higher than 165 MHz, so the display port connection will enter dual link mode, which must be stopped in this case. We attempted to allow the mode to pass through to see if it might just work. There were two changes: drivers/gpu/drm/nouveau/nouvau_connector.c modified get_tmds_link_bandwidth() to return 340000 (HDMI 1.3 spec) drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c commented out line 1547-1548 to not use dual link mode. The result is a failure. The screen flickers and does not show anything. A full dmesg log with nouveau.debug=trace is attached. I am a C programmer but I hav...

This is mainly for dropping interlaced modes on DP connectors if the GPU would otherwise display garbage or EVO timesout. It also adds experimental detection of the HDMI clock limit we currently hard limit depending on the GPU generation. Starting with GF110 GPUs, we can retrieve the limit directly from the GPU and may make the hdmimhz parameter obsolete. Testing this series with 2560x1440 or

small update to my last version I sent out. Patches 3-6 are optional and should only improve detecting the max clocks for HDMI and DP, but they didn't underwent big testing and I am a bit concerned, that it might break detecting the DP limits on some boards. Karol Herbst (6): kms/nv50: move nv50_mstm out of the dp union in nouveau_encoder kms/nv50: reject interlaced modes if the hardware