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24 Mar 2020 09:46:10 -0700 Received: by stinkbox (sSMTP sendmail emulation); Tue, 24 Mar 2020 18:46:10 +0200 Date: Tue, 24 Mar 2020 18:46:10 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: "Laxminarayan Bharadiya, Pankaj" Subject: Re: [PATCH v2 5/5] drm/i915: Enable scaling filter for plane and CRTC Message-ID: <20200324164610.GZ13686@intel.com> References: <20200319102103.28895-1-pankaj.laxminarayan.bharadiya@intel.com> <20200319102103.28895-6-pankaj.laxminarayan.bharadiya@intel.com> <20200323144749.GV13686@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Patchwork-Hint: comment User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Lattannavar, Sameer" , "daniels@collabora.com" , David Airlie , "intel-gfx@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "Shankar, Uma" , "Vivi, Rodrigo" , "Souza, Jose" Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, Mar 24, 2020 at 03:32:09PM +0000, Laxminarayan Bharadiya, Pankaj wr= ote: > = > = > > -----Original Message----- > > From: Ville Syrj=E4l=E4 > > Sent: 23 March 2020 20:18 > > To: Laxminarayan Bharadiya, Pankaj > > > > Cc: Lattannavar, Sameer ; > > jani.nikula@linux.intel.com; daniel@ffwll.ch; intel-gfx@lists.freedeskt= op.org; > > dri-devel@lists.freedesktop.org; daniels@collabora.com; Joonas Lahtinen > > ; Vivi, Rodrigo ; > > David Airlie ; Chris Wilson ; > > Maarten Lankhorst ; Souza, Jose > > ; Deak, Imre ; Shankar, Uma > > > > Subject: Re: [PATCH v2 5/5] drm/i915: Enable scaling filter for plane a= nd CRTC > > = > > On Thu, Mar 19, 2020 at 03:51:03PM +0530, Pankaj Bharadiya wrote: > > > GEN >=3D 10 hardware supports the programmable scaler filter. > > > > > > Attach scaling filter property for CRTC and plane for GEN >=3D 10 > > > hardwares and program scaler filter based on the selected filter type. > > > > > > changes since v1: > > > * None > > > Changes since RFC: > > > * Enable properties for GEN >=3D 10 platforms (Ville) > > > * Do not round off the crtc co-ordinate (Danial Stone, Ville) > > > * Add new functions to handle scaling filter setup (Ville) > > > * Remove coefficient set 0 hardcoding. > > > > > > Signed-off-by: Shashank Sharma > > > Signed-off-by: Ankit Nautiyal > > > Signed-off-by: Pankaj Bharadiya > > > > > > --- > > > drivers/gpu/drm/i915/display/intel_display.c | 32 > > > ++++++++++++++++++-- drivers/gpu/drm/i915/display/intel_sprite.c | > > > 31 ++++++++++++++++++- > > > 2 files changed, 60 insertions(+), 3 deletions(-) > > > > > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c > > > b/drivers/gpu/drm/i915/display/intel_display.c > > > index 791dd908aa89..4b3387ee332e 100644 > > > --- a/drivers/gpu/drm/i915/display/intel_display.c > > > +++ b/drivers/gpu/drm/i915/display/intel_display.c > > > @@ -6309,6 +6309,25 @@ void > > skl_scaler_setup_nearest_neighbor_filter(struct drm_i915_private *dev_p= riv, > > > } > > > } > > > > > > +static u32 > > > +skl_scaler_crtc_setup_filter(struct drm_i915_private *dev_priv, enum= pipe > > pipe, > > > + int id, int set, enum drm_crtc_scaling_filter filter) { > > > + u32 scaler_filter_ctl =3D PS_FILTER_MEDIUM; > > > + > > > + if (filter =3D=3D DRM_CRTC_SCALING_FILTER_NEAREST_NEIGHBOR) { > > > + skl_scaler_setup_nearest_neighbor_filter(dev_priv, pipe, id, > > > + set); > > > + scaler_filter_ctl =3D PS_FILTER_PROGRAMMED | > > > + PS_UV_VERT_FILTER_SELECT(set) | > > > + PS_UV_HORZ_FILTER_SELECT(set) | > > > + PS_Y_VERT_FILTER_SELECT(set) | > > > + PS_Y_HORZ_FILTER_SELECT(set); > > > + > > > + } > > > + return scaler_filter_ctl; > > = > > This function does too many things. > = > I was thinking to have a common function which configures the filter and = also > provides the register bits (ps_ctrl) to select a desired filter so that w= e need > not have extra condition to figure out filter select register bits where = this > function is being called. > How about renaming this function to some better name like = > skl_scaler_set_and_get_filter_select() or something else? = > Or shall I breakdown this function into multiple functions? I'd just inline the PS_CTRL stuff into the current function. > = > Any suggestions? > = > > = > > > +} > > > + > > > static void skl_pfit_enable(const struct intel_crtc_state > > > *crtc_state) { > > > struct intel_crtc *crtc =3D to_intel_crtc(crtc_state->uapi.crtc); > > > @@ -6316,12 +6335,14 @@ static void skl_pfit_enable(const struct > > intel_crtc_state *crtc_state) > > > enum pipe pipe =3D crtc->pipe; > > > const struct intel_crtc_scaler_state *scaler_state =3D > > > &crtc_state->scaler_state; > > > + const struct drm_crtc_state *state =3D &crtc_state->uapi; > > = > > Pls don't add this kind of aliases. We're moving away from using the dr= m_ types > > as much as possible. > = > OK. > = > > = > > > > > > if (crtc_state->pch_pfit.enabled) { > > > u16 uv_rgb_hphase, uv_rgb_vphase; > > > int pfit_w, pfit_h, hscale, vscale; > > > unsigned long irqflags; > > > int id; > > > + int scaler_filter_ctl; > > = > > It's a register value so u32. I'd also > = > Yes, I missed it. Thanks for pointing out. > = > > s/scaler_filter_ctl/filter_select/ or something like that. > > = > > Alternatively we could just call it ps_ctrl and have it contain the ful= l register > > value for that particular register. > = > ps_ctrl sounds better, will use this name. > = > > = > > > > > > if (drm_WARN_ON(&dev_priv->drm, > > > crtc_state->scaler_state.scaler_id < 0)) @@ - > > 6340,8 +6361,12 @@ > > > static void skl_pfit_enable(const struct intel_crtc_state *crtc_state) > > > > > > spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); > > > > > > - intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, id), > > PS_SCALER_EN | > > > - PS_FILTER_MEDIUM | scaler_state- > > >scalers[id].mode); > > > + scaler_filter_ctl =3D > > > + skl_scaler_crtc_setup_filter(dev_priv, pipe, id, 0, > > > + state->scaling_filter); > > > + intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, id), > > > + PS_SCALER_EN | scaler_filter_ctl | > > > + scaler_state->scalers[id].mode); > > > intel_de_write_fw(dev_priv, SKL_PS_VPHASE(pipe, id), > > > PS_Y_PHASE(0) | > > PS_UV_RGB_PHASE(uv_rgb_vphase)); > > > intel_de_write_fw(dev_priv, SKL_PS_HPHASE(pipe, id), @@ - > > 16777,6 > > > +16802,9 @@ static int intel_crtc_init(struct drm_i915_private *dev_p= riv, > > enum pipe pipe) > > > dev_priv->plane_to_crtc_mapping[i9xx_plane] =3D crtc; > > > } > > > > > > + if (INTEL_GEN(dev_priv) >=3D 10) > > > + drm_crtc_enable_scaling_filter(&crtc->base); > > > + > > > intel_color_init(crtc); > > > > > > intel_crtc_crc_init(crtc); > > > diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c > > > b/drivers/gpu/drm/i915/display/intel_sprite.c > > > index deda351719db..ac3fd9843ace 100644 > > > --- a/drivers/gpu/drm/i915/display/intel_sprite.c > > > +++ b/drivers/gpu/drm/i915/display/intel_sprite.c > > > @@ -395,6 +395,26 @@ skl_plane_max_stride(struct intel_plane *plane, > > > return min(8192 * cpp, 32768); > > > } > > > > > > +static u32 > > > +skl_scaler_plane_setup_filter(struct drm_i915_private *dev_priv, enu= m pipe > > pipe, > > > + int id, int set, > > > + enum drm_plane_scaling_filter filter) { > > > + u32 scaler_filter_ctl =3D PS_FILTER_MEDIUM; > > > + > > > + if (filter =3D=3D DRM_PLANE_SCALING_FILTER_NEAREST_NEIGHBOR) { > > > + skl_scaler_setup_nearest_neighbor_filter(dev_priv, pipe, id, > > > + set); > > > + scaler_filter_ctl =3D PS_FILTER_PROGRAMMED | > > > + PS_UV_VERT_FILTER_SELECT(set) | > > > + PS_UV_HORZ_FILTER_SELECT(set) | > > > + PS_Y_VERT_FILTER_SELECT(set) | > > > + PS_Y_HORZ_FILTER_SELECT(set); > > > + > > > + } > > > + return scaler_filter_ctl; > > > +} > > > + > > = > > We don't want such copy pasta between planes and crtcs. > = > Yeah, got it. = > Will add a common enum drm_scaling_filter and use it. > = > Thanks, > Pankaj > = > > = > > > static void > > > skl_program_scaler(struct intel_plane *plane, > > > const struct intel_crtc_state *crtc_state, @@ -406,6 +426,7 > > @@ > > > skl_program_scaler(struct intel_plane *plane, > > > int scaler_id =3D plane_state->scaler_id; > > > const struct intel_scaler *scaler =3D > > > &crtc_state->scaler_state.scalers[scaler_id]; > > > + const struct drm_plane_state *state =3D &plane_state->uapi; > > > int crtc_x =3D plane_state->uapi.dst.x1; > > > int crtc_y =3D plane_state->uapi.dst.y1; > > > u32 crtc_w =3D drm_rect_width(&plane_state->uapi.dst); > > > @@ -413,6 +434,7 @@ skl_program_scaler(struct intel_plane *plane, > > > u16 y_hphase, uv_rgb_hphase; > > > u16 y_vphase, uv_rgb_vphase; > > > int hscale, vscale; > > > + int scaler_filter_ctl; > > > > > > hscale =3D drm_rect_calc_hscale(&plane_state->uapi.src, > > > &plane_state->uapi.dst, > > > @@ -439,8 +461,12 @@ skl_program_scaler(struct intel_plane *plane, > > > uv_rgb_vphase =3D skl_scaler_calc_phase(1, vscale, false); > > > } > > > > > > + scaler_filter_ctl =3D > > > + skl_scaler_plane_setup_filter(dev_priv, pipe, scaler_id, 0, > > > + state->scaling_filter); > > > intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, scaler_id), > > > - PS_SCALER_EN | PS_PLANE_SEL(plane->id) | scaler- > > >mode); > > > + PS_SCALER_EN | PS_PLANE_SEL(plane->id) | > > > + scaler->mode | scaler_filter_ctl); > > > intel_de_write_fw(dev_priv, SKL_PS_VPHASE(pipe, scaler_id), > > > PS_Y_PHASE(y_vphase) | > > PS_UV_RGB_PHASE(uv_rgb_vphase)); > > > intel_de_write_fw(dev_priv, SKL_PS_HPHASE(pipe, scaler_id), @@ > > > -3121,6 +3147,9 @@ skl_universal_plane_create(struct drm_i915_private > > > *dev_priv, > > > > > > drm_plane_create_zpos_immutable_property(&plane->base, plane_id); > > > > > > + if (INTEL_GEN(dev_priv) >=3D 10) > > > + drm_plane_enable_scaling_filter(&plane->base); > > > + > > > drm_plane_helper_add(&plane->base, &intel_plane_helper_funcs); > > > > > > return plane; > > > -- > > > 2.23.0 > > = > > -- > > Ville Syrj=E4l=E4 > > Intel -- = Ville Syrj=E4l=E4 Intel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel