On Thu, Mar 01, 2018 at 10:47:05PM +0200, Ville Syrjälä wrote:
> On Thu, Mar 01, 2018 at 12:38:58PM -0800, Dhinakaran Pandiyan wrote:
> > In fact, apply the Cannonlake resolution check for all > Gen-9 platforms to
> > be safe.
> >
> > 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 | 11 ++++++-----
> > 1 file changed, 6 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_psr.c
> > b/drivers/gpu/drm/i915/intel_psr.c
> > index 05770790a4e9..2a2c696c4109 100644
> > --- a/drivers/gpu/drm/i915/intel_psr.c
> > +++ b/drivers/gpu/drm/i915/intel_psr.c
> > @@ -451,8 +451,8 @@ 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;
> >
> > /*
> > * FIXME psr2_support is messed up. It's both computed
> > @@ -462,9 +462,10 @@ 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) {
> > + if (crtc_h > 4096 || crtc_v > 2304) {
> > + DRM_DEBUG_KMS("PSR2 not enabled, panel resolution too big\n");
> > + return false;
> > + } else if (IS_GEN9(dev_priv) && (crtc_h > 3640 || crtc_v > 2304)) {
>
> I would suggest introducing max_w/h or something similar so that you
> don't have to duplicate the actual code.
I was going to suggest same thing. So it gets more clear that it is
per platform based and avoid duplication of code
>
> When debugging things from logs one might want to know both the requested
> size and the max. So printing those out might be a good idea.
>
> > DRM_DEBUG_KMS("PSR2 not enabled, panel resolution too big\n");
> > return false;
> > }
> > --
> > 2.14.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > [email protected]
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Ville Syrjälä
> Intel OTC
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