Re: [PATCH] drm/amd/display: Trivial swizzle-related code clean-ups

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Applied.  Thanks!

Alex

On Tue, Jan 31, 2023 at 9:40 AM Harry Wentland <harry.wentland@xxxxxxx> wrote:
>
> On 1/30/23 14:56, Guilherme G. Piccoli wrote:
> > This is a very trivial code clean-up related to commit 5468c36d6285
> > ("drm/amd/display: Filter Invalid 420 Modes for HDMI TMDS"). This commit
> > added a validation on driver probe to prevent invalid TMDS modes, but one
> > of the fake properties (swizzle) ended-up causing a warning on driver
> > probe; was reported here: https://gitlab.freedesktop.org/drm/amd/-/issues/2264.
> >
> > It was fixed by commit 105a8b8698e2 ("drm/amd/display: patch cases with
> > unknown plane state to prevent warning"), but the validation code had
> > a double variable assignment, which we hereby remove. Also, the fix relies
> > in the dcn2{0,1}patch_unknown_plane_state() callbacks, so while at it we
> > took the opportunity to perform a small code clean-up in such routines.
> >
> > Cc: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
> > Cc: Daniel Wheeler <daniel.wheeler@xxxxxxx>
> > Cc: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
> > Cc: Harry Wentland <harry.wentland@xxxxxxx>
> > Cc: Leo Li <sunpeng.li@xxxxxxx>
> > Cc: Mark Broadworth <mark.broadworth@xxxxxxx>
> > Cc: Melissa Wen <mwen@xxxxxxxxxx>
> > Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
> > Cc: Sung Joon Kim <Sungjoon.Kim@xxxxxxx>
> > Cc: Swapnil Patel <Swapnil.Patel@xxxxxxx>
> > Signed-off-by: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxx>
>
> Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
>
> Harry
>
> > ---
> >  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c     | 1 -
> >  drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 8 ++------
> >  drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 6 ++----
> >  3 files changed, 4 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > index 86a2f7f58550..e71e94663d14 100644
> > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > @@ -6336,7 +6336,6 @@ static enum dc_status dm_validate_stream_and_context(struct dc *dc,
> >       dc_plane_state->plane_size.surface_size.width  = stream->src.width;
> >       dc_plane_state->plane_size.chroma_size.height  = stream->src.height;
> >       dc_plane_state->plane_size.chroma_size.width   = stream->src.width;
> > -     dc_plane_state->tiling_info.gfx9.swizzle =  DC_SW_UNKNOWN;
> >       dc_plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
> >       dc_plane_state->tiling_info.gfx9.swizzle = DC_SW_UNKNOWN;
> >       dc_plane_state->rotation = ROTATION_ANGLE_0;
> > 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 531f405d2554..3af24ef9cb2d 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> > @@ -2225,14 +2225,10 @@ enum dc_status dcn20_patch_unknown_plane_state(struct dc_plane_state *plane_stat
> >       enum surface_pixel_format surf_pix_format = plane_state->format;
> >       unsigned int bpp = resource_pixel_format_to_bpp(surf_pix_format);
> >
> > -     enum swizzle_mode_values swizzle = DC_SW_LINEAR;
> > -
> > +     plane_state->tiling_info.gfx9.swizzle = DC_SW_64KB_S;
> >       if (bpp == 64)
> > -             swizzle = DC_SW_64KB_D;
> > -     else
> > -             swizzle = DC_SW_64KB_S;
> > +             plane_state->tiling_info.gfx9.swizzle = DC_SW_64KB_D;
> >
> > -     plane_state->tiling_info.gfx9.swizzle = swizzle;
> >       return DC_OK;
> >  }
> >
> > 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 fbcf0afeae0d..8f9244fe5c86 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
> > @@ -1393,15 +1393,13 @@ static uint32_t read_pipe_fuses(struct dc_context *ctx)
> >
> >  static enum dc_status dcn21_patch_unknown_plane_state(struct dc_plane_state *plane_state)
> >  {
> > -     enum dc_status result = DC_OK;
> > -
> >       if (plane_state->ctx->dc->debug.disable_dcc == DCC_ENABLE) {
> >               plane_state->dcc.enable = 1;
> >               /* align to our worst case block width */
> >               plane_state->dcc.meta_pitch = ((plane_state->src_rect.width + 1023) / 1024) * 1024;
> >       }
> > -     result = dcn20_patch_unknown_plane_state(plane_state);
> > -     return result;
> > +
> > +     return dcn20_patch_unknown_plane_state(plane_state);
> >  }
> >
> >  static const struct resource_funcs dcn21_res_pool_funcs = {
>



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