Ilia Mirkin
2015-Sep-18 02:31 UTC
[Nouveau] [PATCH] display: allow up to 16k width/height for fermi+
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
mrnuke on IRC reported that 3x 4K monitors (11520 width total) got
rejected for some reason. I'm guessing it's this since a single giant
FB has to be used.
Not sure if the hardware will actually support it, but... who knows.
drm/nouveau/nouveau_display.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c
index 8d0e60d..d3d6438 100644
--- a/drm/nouveau/nouveau_display.c
+++ b/drm/nouveau/nouveau_display.c
@@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev)
if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
dev->mode_config.max_width = 4096;
dev->mode_config.max_height = 4096;
- } else {
+ } else
+ if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
dev->mode_config.max_width = 8192;
dev->mode_config.max_height = 8192;
+ } else {
+ dev->mode_config.max_width = 16384;
+ dev->mode_config.max_height = 16384;
}
dev->mode_config.preferred_depth = 24;
--
2.4.6
Ben Skeggs
2015-Sep-18 13:41 UTC
[Nouveau] [PATCH] display: allow up to 16k width/height for fermi+
On 18 September 2015 at 12:31, Ilia Mirkin <imirkin at alum.mit.edu> wrote:> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> > --- > > mrnuke on IRC reported that 3x 4K monitors (11520 width total) got > rejected for some reason. I'm guessing it's this since a single giant > FB has to be used. > > Not sure if the hardware will actually support it, but... who knows.After looking at the EVO headers, I believe this should be fine. Did the patch get tested to confirm? I'd also make the subject "kms" rather than "display". Ben.> > drm/nouveau/nouveau_display.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c > index 8d0e60d..d3d6438 100644 > --- a/drm/nouveau/nouveau_display.c > +++ b/drm/nouveau/nouveau_display.c > @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev) > if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { > dev->mode_config.max_width = 4096; > dev->mode_config.max_height = 4096; > - } else { > + } else > + if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) { > dev->mode_config.max_width = 8192; > dev->mode_config.max_height = 8192; > + } else { > + dev->mode_config.max_width = 16384; > + dev->mode_config.max_height = 16384; > } > > dev->mode_config.preferred_depth = 24; > -- > 2.4.6 > > _______________________________________________ > Nouveau mailing list > Nouveau at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/nouveau
Ilia Mirkin
2015-Sep-18 17:24 UTC
[Nouveau] [PATCH] display: allow up to 16k width/height for fermi+
On Fri, Sep 18, 2015 at 9:41 AM, Ben Skeggs <skeggsb at gmail.com> wrote:> On 18 September 2015 at 12:31, Ilia Mirkin <imirkin at alum.mit.edu> wrote: >> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> >> --- >> >> mrnuke on IRC reported that 3x 4K monitors (11520 width total) got >> rejected for some reason. I'm guessing it's this since a single giant >> FB has to be used. >> >> Not sure if the hardware will actually support it, but... who knows. > After looking at the EVO headers, I believe this should be fine. Did > the patch get tested to confirm?Not yet. Although in the meanwhile I realized that I don't actually need 3x 4K monitors... I can just run this patch and do something like xrandr --fb 16384x16384. But unfortunately there's no monitor connected in my setup where I can reload nouveau easily, and I reboot rarely where I do have monitors connected.> > I'd also make the subject "kms" rather than "display". > > Ben. > >> >> drm/nouveau/nouveau_display.c | 6 +++++- >> 1 file changed, 5 insertions(+), 1 deletion(-) >> >> diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c >> index 8d0e60d..d3d6438 100644 >> --- a/drm/nouveau/nouveau_display.c >> +++ b/drm/nouveau/nouveau_display.c >> @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev) >> if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { >> dev->mode_config.max_width = 4096; >> dev->mode_config.max_height = 4096; >> - } else { >> + } else >> + if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) { >> dev->mode_config.max_width = 8192; >> dev->mode_config.max_height = 8192; >> + } else { >> + dev->mode_config.max_width = 16384; >> + dev->mode_config.max_height = 16384; >> } >> >> dev->mode_config.preferred_depth = 24; >> -- >> 2.4.6 >> >> _______________________________________________ >> Nouveau mailing list >> Nouveau at lists.freedesktop.org >> http://lists.freedesktop.org/mailman/listinfo/nouveau