On Thu, 2020-07-02 at 18:37 +0300, Ville Syrjala wrote: > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > Unlike all the other pre-snb desktop platforms i865 actually > supports FBC. Let's enable it. > > Quote from the spec: > "DevSDG provides the same Run-Length Encoded Frame Buffer > Compression (RLEFBC) function as exists in DevMGM." > > As i865 only has the one pipe we want to skip massaging the > plane<->pipe assignment aimed at getting FBC+LVDS working on > the mobile platforms. Reviewed-by: José Roberto de Souza <jose.souza@xxxxxxxxx> > > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_display.c | 3 ++- > drivers/gpu/drm/i915/i915_pci.c | 1 + > 2 files changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c > index 84e2a17b5ecb..653f6617d59a 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -16332,7 +16332,8 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe) > * On gen2/3 only plane A can do FBC, but the panel fitter and LVDS > * port is hooked to pipe B. Hence we want plane A feeding pipe B. > */ > - if (HAS_FBC(dev_priv) && INTEL_GEN(dev_priv) < 4) > + if (HAS_FBC(dev_priv) && INTEL_GEN(dev_priv) < 4 && > + INTEL_NUM_PIPES(dev_priv) == 2) > plane->i9xx_plane = (enum i9xx_plane_id) !pipe; > else > plane->i9xx_plane = (enum i9xx_plane_id) pipe; > diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c > index e5fdf17cd9cd..0be3b66ce666 100644 > --- a/drivers/gpu/drm/i915/i915_pci.c > +++ b/drivers/gpu/drm/i915/i915_pci.c > @@ -217,6 +217,7 @@ static const struct intel_device_info i85x_info = { > static const struct intel_device_info i865g_info = { > I845_FEATURES, > PLATFORM(INTEL_I865G), > + .display.has_fbc = 1, > }; > > #define GEN3_FEATURES \ _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx