On Wed, Dec 16, 2015 at 07:06:20PM -0800, Radhakrishna Sripada wrote: > Original value of 32 blocks is not sufficient when using cursor size of > 256x256 causing FIFO underruns when the reworked wm > caluclations in > > commit 024c9045221fe45482863c47c4b4c47d37f97cbf > Author: Matt Roper <[email protected]> > Date: Thu Sep 24 15:53:11 2015 -0700 > > drm/i915/skl: Eliminate usage of pipe_wm_parameters from SKL-style WM (v4)
Well that commit is obviously incorrect. It's now using the pipe src width as the plane width for all planes. > > are used. Increasing the number of blocks to 52 to make cursor plane tolerate > SAGV block time for the maximum possible cursor size. > > Signed-off-by: Radhakrishna Sripada <[email protected]> > Signed-off-by: Kalyan Kondapally <[email protected]> > --- > drivers/gpu/drm/i915/intel_pm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index d385d99..137fb68 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -2802,7 +2802,7 @@ skl_ddb_get_pipe_allocation_limits(struct drm_device > *dev, > static unsigned int skl_cursor_allocation(const struct intel_wm_config > *config) > { > if (config->num_pipes_active == 1) > - return 32; > + return 52; > > return 8; > } > -- > 1.9.1 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
