Re: [PATCH 10/19] drm/amd/display: Changed pipe split policy to allow for multi-display pipe split

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On Fri, Dec 17, 2021 at 4:51 PM Rodrigo Siqueira Jordao
<rjordrigo@xxxxxxx> wrote:
>
>
>
> On 2021-12-17 4:36 p.m., Deucher, Alexander wrote:
> > [AMD Official Use Only]
> >
> >
> > Maybe add Bug links for:
> > https://gitlab.freedesktop.org/drm/amd/-/issues/1522
> > <https://gitlab.freedesktop.org/drm/amd/-/issues/1522>
> > https://gitlab.freedesktop.org/drm/amd/-/issues/1709
> > <https://gitlab.freedesktop.org/drm/amd/-/issues/1709>
> > https://gitlab.freedesktop.org/drm/amd/-/issues/1655
> > <https://gitlab.freedesktop.org/drm/amd/-/issues/1655>
> > https://gitlab.freedesktop.org/drm/amd/-/issues/1403
> > <https://gitlab.freedesktop.org/drm/amd/-/issues/1403>
>
> Sure, I'll update the commit message before apply this patch.
>
> Thanks.
>
> >
> >
> >
> > ------------------------------------------------------------------------
> > *From:* amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of
> > Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
> > *Sent:* Friday, December 17, 2021 4:23 PM
> > *To:* amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>
> > *Cc:* Wang, Chao-kai (Stylon) <Stylon.Wang@xxxxxxx>; Cyr, Aric
> > <Aric.Cyr@xxxxxxx>; Li, Sun peng (Leo) <Sunpeng.Li@xxxxxxx>; Wentland,
> > Harry <Harry.Wentland@xxxxxxx>; Zhuo, Qingqing (Lillian)
> > <Qingqing.Zhuo@xxxxxxx>; Siqueira, Rodrigo <Rodrigo.Siqueira@xxxxxxx>;
> > Li, Roman <Roman.Li@xxxxxxx>; Chiu, Solomon <Solomon.Chiu@xxxxxxx>;
> > Pillai, Aurabindo <Aurabindo.Pillai@xxxxxxx>; Wang, Angus
> > <Angus.Wang@xxxxxxx>; Lin, Wayne <Wayne.Lin@xxxxxxx>; Lipski, Mikita
> > <Mikita.Lipski@xxxxxxx>; Lakha, Bhawanpreet <Bhawanpreet.Lakha@xxxxxxx>;
> > Gutierrez, Agustin <Agustin.Gutierrez@xxxxxxx>; Kotarac, Pavle
> > <Pavle.Kotarac@xxxxxxx>
> > *Subject:* [PATCH 10/19] drm/amd/display: Changed pipe split policy to
> > allow for multi-display pipe split
> > From: Angus Wang <angus.wang@xxxxxxx>
> >
> > [WHY]
> > Current implementation of pipe split policy prevents pipe split with
> > multiple displays connected, which caused the MCLK speed to be stuck at
> > max
> >
> > [HOW]
> > Changed the pipe split policies so that pipe split is allowed for
> > multi-display configurations
> >
> > Reviewed-by: Aric Cyr <Aric.Cyr@xxxxxxx>
> > Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
> > Signed-off-by: Angus Wang <angus.wang@xxxxxxx>
> > ---
> >   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c   | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c   | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c   | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c | 2 +-
> >   drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c   | 2 +-

Also, it looks like dcn10_resource.c was missed.  Was that intentional?

Alex


> >   8 files changed, 8 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> > index 2a72517e2b28..2bc93df023ad 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> > @@ -1069,7 +1069,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >                   .timing_trace = false,
> >                   .clock_trace = true,
> >                   .disable_pplib_clock_request = true,
> > -               .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
> > +               .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >                   .force_single_disp_pipe_split = false,
> >                   .disable_dcc = DCC_ENABLE,
> >                   .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> > index d6acf9a8590a..0bb7d3dd53fa 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> > @@ -603,7 +603,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >                   .timing_trace = false,
> >                   .clock_trace = true,
> >                   .disable_pplib_clock_request = true,
> > -               .pipe_split_policy = MPC_SPLIT_AVOID,
> > +               .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >                   .force_single_disp_pipe_split = false,
> >                   .disable_dcc = DCC_ENABLE,
> >                   .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
> > index ca1bbc942fd4..e5cc6bf45743 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
> > @@ -873,7 +873,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >                   .clock_trace = true,
> >                   .disable_pplib_clock_request = true,
> >                   .min_disp_clk_khz = 100000,
> > -               .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
> > +               .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >                   .force_single_disp_pipe_split = false,
> >                   .disable_dcc = DCC_ENABLE,
> >                   .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
> > index 369ceeeddc7e..e12660c609ee 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
> > @@ -840,7 +840,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >           .timing_trace = false,
> >           .clock_trace = true,
> >           .disable_pplib_clock_request = true,
> > -       .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
> > +       .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >           .force_single_disp_pipe_split = false,
> >           .disable_dcc = DCC_ENABLE,
> >           .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
> > index b4001233867c..c1c6e602b06c 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
> > @@ -686,7 +686,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >           .disable_clock_gate = true,
> >           .disable_pplib_clock_request = true,
> >           .disable_pplib_wm_range = true,
> > -       .pipe_split_policy = MPC_SPLIT_AVOID,
> > +       .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >           .force_single_disp_pipe_split = false,
> >           .disable_dcc = DCC_ENABLE,
> >           .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
> > index 003e95368672..2e9cbfa7663b 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
> > @@ -211,7 +211,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >                   .timing_trace = false,
> >                   .clock_trace = true,
> >                   .disable_pplib_clock_request = true,
> > -               .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
> > +               .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >                   .force_single_disp_pipe_split = false,
> >                   .disable_dcc = DCC_ENABLE,
> >                   .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
> > index 01ba9d656c72..2de687f64cf6 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
> > @@ -193,7 +193,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >                   .timing_trace = false,
> >                   .clock_trace = true,
> >                   .disable_pplib_clock_request = true,
> > -               .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
> > +               .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >                   .force_single_disp_pipe_split = false,
> >                   .disable_dcc = DCC_ENABLE,
> >                   .vsr_support = true,
> > diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
> > b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
> > index 6d07dcecc953..7c64317a56f7 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
> > @@ -1003,7 +1003,7 @@ static const struct dc_debug_options
> > debug_defaults_drv = {
> >           .timing_trace = false,
> >           .clock_trace = true,
> >           .disable_pplib_clock_request = false,
> > -       .pipe_split_policy = MPC_SPLIT_AVOID,
> > +       .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> >           .force_single_disp_pipe_split = false,
> >           .disable_dcc = DCC_ENABLE,
> >           .vsr_support = true,
> > --
> > 2.25.1
> >
>



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