On Thu, 2018-03-01 at 23:47 +0200, Ville Syrjälä wrote:
> On Thu, Mar 01, 2018 at 01:27:09PM -0800, Dhinakaran Pandiyan wrote:
> > In fact, apply the Cannonlake resolution check for all >= Gen-10 platforms
> > to be safe.
> >
> > v2: Use local variables for resolution limits and print them (Ville)
> >
> > Cc: Ville Syrjälä <[email protected]>
> > Cc: Rodrigo Vivi <[email protected]>
> > Cc: Elio Martinez Monroy <[email protected]>
> > Signed-off-by: Dhinakaran Pandiyan <[email protected]>
> > ---
> > drivers/gpu/drm/i915/intel_psr.c | 14 ++++++++------
> > 1 file changed, 8 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_psr.c
> > b/drivers/gpu/drm/i915/intel_psr.c
> > index 05770790a4e9..66d04a8dd99e 100644
> > --- a/drivers/gpu/drm/i915/intel_psr.c
> > +++ b/drivers/gpu/drm/i915/intel_psr.c
> > @@ -451,8 +451,9 @@ static bool intel_psr2_config_valid(struct intel_dp
> > *intel_dp,
> > {
> > struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> > struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
> > - const struct drm_display_mode *adjusted_mode =
> > - &crtc_state->base.adjusted_mode;
> > + int crtc_h = crtc_state->base.adjusted_mode.crtc_hdisplay;
> > + int crtc_v = crtc_state->base.adjusted_mode.crtc_vdisplay;
>
> I'd probably call these hdisp/vdisp or something like that. "crtc_h" makes
> me think it's a height of a plane in crtc (pipe source) coordinates.
and h/vdisplay are specifically related to the mode?
>
> > + int max_h, max_v;
I guess this is okay then?
> >
> > /*
> > * FIXME psr2_support is messed up. It's both computed
> > @@ -462,10 +463,11 @@ static bool intel_psr2_config_valid(struct intel_dp
> > *intel_dp,
> > if (!dev_priv->psr.psr2_support)
> > return false;
> >
> > - /* PSR2 is restricted to work with panel resolutions up to 3640x2304 */
> > - if (adjusted_mode->crtc_hdisplay > 3640 ||
> > - adjusted_mode->crtc_vdisplay > 2304) {
> > - DRM_DEBUG_KMS("PSR2 not enabled, panel resolution too big\n");
> > + max_h = INTEL_GEN(dev_priv) >= 10 ? 4096 : 3640;
> > + max_v = 2304;
>
> GLK should use the higher limit too no?
Yeah, I just checked and it makes sense to update GLK too.
>
> Looking at the *future* stuff for this it looks like we'll be getting
> different limits again soon. So I'd prep for that day by making this
> a full blown if ladder from the start.
>
> > + if (crtc_h > max_h || crtc_v > max_v) {
> > + DRM_DEBUG_KMS("PSR2 not enabled, resolution %dx%d > max
> > supported %dx%d\n",
> > + crtc_h, crtc_v, max_h, max_v);
> > return false;
> > }
> >
> > --
> > 2.14.1
>
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