> -----Original Message-----
> From: Intel-gfx <intel-gfx-boun...@lists.freedesktop.org> On Behalf Of Nemesa
> Garg
> Sent: Monday, July 8, 2024 1:39 PM
> To: intel-...@lists.freedesktop.org; dri-devel@lists.freedesktop.org
> Cc: Garg, Nemesa <nemesa.g...@intel.com>
> Subject: [3/5] drm/i915/display: Enable the second scaler for sharpness
>
> As only second scaler can be used for sharpness check if it is available and
> if
> panel fitting is also not enabled, the set the sharpness. Panel fitting will
> have
> the preference over sharpness property.
Can you reframe the commit message, it's a bit difficult to understand.
>
> v2: Added the panel fitting check before enabling sharpness
>
> Signed-off-by: Nemesa Garg <nemesa.g...@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 10 ++-
> .../drm/i915/display/intel_display_types.h | 1 +
> .../drm/i915/display/intel_modeset_verify.c | 1 +
> drivers/gpu/drm/i915/display/intel_panel.c | 4 +-
> .../drm/i915/display/intel_sharpen_filter.c | 10 +++
> .../drm/i915/display/intel_sharpen_filter.h | 1 +
> drivers/gpu/drm/i915/display/skl_scaler.c | 84 +++++++++++++++++--
> drivers/gpu/drm/i915/display/skl_scaler.h | 1 +
> 8 files changed, 99 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index a62560a0c1a9..385a254528f9 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2028,7 +2028,7 @@ static void get_crtc_power_domains(struct
> intel_crtc_state *crtc_state,
> set_bit(POWER_DOMAIN_PIPE(pipe), mask->bits);
> set_bit(POWER_DOMAIN_TRANSCODER(cpu_transcoder), mask->bits);
> if (crtc_state->pch_pfit.enabled ||
> - crtc_state->pch_pfit.force_thru)
> + crtc_state->pch_pfit.force_thru ||
> +crtc_state->hw.casf_params.need_scaler)
> set_bit(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe), mask-
> >bits);
>
> drm_for_each_encoder_mask(encoder, &dev_priv->drm, @@ -2284,7
> +2284,7 @@ static u32 ilk_pipe_pixel_rate(const struct intel_crtc_state
> *crtc_state)
> * PF-ID we'll need to adjust the pixel_rate here.
> */
>
> - if (!crtc_state->pch_pfit.enabled)
> + if (!crtc_state->pch_pfit.enabled ||
> +crtc_state->hw.casf_params.need_scaler)
> return pixel_rate;
>
> drm_rect_init(&src, 0, 0,
> @@ -4295,7 +4295,8 @@ static int intel_crtc_atomic_check(struct
> intel_atomic_state *state,
>
> if (DISPLAY_VER(dev_priv) >= 9) {
> if (intel_crtc_needs_modeset(crtc_state) ||
> - intel_crtc_needs_fastset(crtc_state)) {
> + intel_crtc_needs_fastset(crtc_state) ||
> + crtc_state->hw.casf_params.need_scaler) {
> ret = skl_update_scaler_crtc(crtc_state);
> if (ret)
> return ret;
> @@ -5481,6 +5482,9 @@ intel_pipe_config_compare(const struct
> intel_crtc_state *current_config,
> PIPE_CONF_CHECK_BOOL(cmrr.enable);
> }
>
> + if (pipe_config->uapi.sharpness_strength > 0)
> + PIPE_CONF_CHECK_BOOL(hw.casf_params.need_scaler);
> +
> #undef PIPE_CONF_CHECK_X
> #undef PIPE_CONF_CHECK_I
> #undef PIPE_CONF_CHECK_LLI
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h
> b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 1c3e031ab369..130740aaaa21 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -834,6 +834,7 @@ struct intel_sharpness_filter {
> u32 scaler_coefficient[119];
> bool strength_changed;
> u8 win_size;
> + bool need_scaler;
Always for sharpness filter scaler is required, so does this need_scaler make
sense?
Rather should we not check for sharpness_filter enabled?
> };
>
> struct intel_crtc_scaler_state {
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_verify.c
> b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
> index 3491db5cad31..ed75934bed6b 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_verify.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
> @@ -177,6 +177,7 @@ verify_crtc_state(struct intel_atomic_state *state,
> crtc->base.name);
>
> hw_crtc_state->hw.enable = sw_crtc_state->hw.enable;
> + hw_crtc_state->hw.casf_params.need_scaler =
> +sw_crtc_state->hw.casf_params.need_scaler;
>
> intel_crtc_get_pipe_config(hw_crtc_state);
>
> diff --git a/drivers/gpu/drm/i915/display/intel_panel.c
> b/drivers/gpu/drm/i915/display/intel_panel.c
> index 71454ddef20f..bfc725d2e178 100644
> --- a/drivers/gpu/drm/i915/display/intel_panel.c
> +++ b/drivers/gpu/drm/i915/display/intel_panel.c
> @@ -451,7 +451,9 @@ static int pch_panel_fitting(struct intel_crtc_state
> *crtc_state,
>
> drm_rect_init(&crtc_state->pch_pfit.dst,
> x, y, width, height);
> - crtc_state->pch_pfit.enabled = true;
> +
> + if (!crtc_state->hw.casf_params.need_scaler)
> + crtc_state->pch_pfit.enabled = true;
>
> return 0;
> }
> diff --git a/drivers/gpu/drm/i915/display/intel_sharpen_filter.c
> b/drivers/gpu/drm/i915/display/intel_sharpen_filter.c
> index b3ebd72b4116..627a0dbd3dfd 100644
> --- a/drivers/gpu/drm/i915/display/intel_sharpen_filter.c
> +++ b/drivers/gpu/drm/i915/display/intel_sharpen_filter.c
> @@ -36,6 +36,16 @@ void intel_sharpness_filter_enable(struct intel_crtc_state
> *crtc_state)
> intel_de_write_fw(dev_priv, GLK_PS_COEF_DATA_SET(crtc-
> >pipe, id, 1),
> crtc_state->hw.casf_params.
> scaler_coefficient[index]);
> }
> +
> + casf_scaler_enable(crtc_state);
> +}
> +
> +int intel_filter_compute_config(struct intel_crtc_state *crtc_state) {
> + if (!crtc_state->pch_pfit.enabled)
> + crtc_state->hw.casf_params.need_scaler = true;
> +
> + return 0;
> }
>
> static void convert_sharpness_coef_binary(struct scaler_filter_coeff *coeff,
> diff
> --git a/drivers/gpu/drm/i915/display/intel_sharpen_filter.h
> b/drivers/gpu/drm/i915/display/intel_sharpen_filter.h
> index 6ab70a635e2f..d20e65971a55 100644
> --- a/drivers/gpu/drm/i915/display/intel_sharpen_filter.h
> +++ b/drivers/gpu/drm/i915/display/intel_sharpen_filter.h
> @@ -23,5 +23,6 @@ struct scaler_filter_coeff {
>
> void intel_sharpness_filter_enable(struct intel_crtc_state *crtc_state);
> void
> intel_sharpness_scaler_compute_config(struct intel_crtc_state *crtc_state);
> +int intel_filter_compute_config(struct intel_crtc_state *crtc_state);
>
> #endif /* __INTEL_SHARPEN_FILTER_H__ */ diff --git
> a/drivers/gpu/drm/i915/display/skl_scaler.c
> b/drivers/gpu/drm/i915/display/skl_scaler.c
> index baa601d27815..9d8bc6c0ab2c 100644
> --- a/drivers/gpu/drm/i915/display/skl_scaler.c
> +++ b/drivers/gpu/drm/i915/display/skl_scaler.c
> @@ -253,7 +253,8 @@ int skl_update_scaler_crtc(struct intel_crtc_state
> *crtc_state)
> drm_rect_width(&crtc_state->pipe_src),
> drm_rect_height(&crtc_state->pipe_src),
> width, height, NULL, 0,
> - crtc_state->pch_pfit.enabled);
> + crtc_state->pch_pfit.enabled ||
> + crtc_state->hw.casf_params.need_scaler);
> }
>
> /**
> @@ -353,9 +354,10 @@ static int intel_atomic_setup_scaler(struct
> intel_crtc_scaler_state *scaler_stat
> int num_scalers_need, struct intel_crtc
> *intel_crtc,
> const char *name, int idx,
> struct intel_plane_state *plane_state,
> - int *scaler_id)
> + int *scaler_id, bool casf_scaler)
> {
> struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
> + struct intel_crtc_state *crtc_state =
> +to_intel_crtc_state(intel_crtc->base.state);
> int j;
> u32 mode;
>
> @@ -365,6 +367,11 @@ static int intel_atomic_setup_scaler(struct
> intel_crtc_scaler_state *scaler_stat
> if (scaler_state->scalers[j].in_use)
> continue;
>
> + if (!strcmp(name, "CRTC")) {
> + if (casf_scaler && j != 1)
Should the scaler id used for sharpness filter be stored and the same be used
here to check if its in use?
> + continue;
> + }
> +
> *scaler_id = j;
> scaler_state->scalers[*scaler_id].in_use = 1;
> break;
> @@ -375,6 +382,10 @@ static int intel_atomic_setup_scaler(struct
> intel_crtc_scaler_state *scaler_stat
> "Cannot find scaler for %s:%d\n", name, idx))
> return -EINVAL;
>
> + if (crtc_state->hw.casf_params.need_scaler) {
> + mode = SKL_PS_SCALER_MODE_HQ;
> + }
> +
> /* set scaler mode */
> if (plane_state && plane_state->hw.fb &&
> plane_state->hw.fb->format->is_yuv && @@ -598,7 +609,8 @@ int
> intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
>
> ret = intel_atomic_setup_scaler(scaler_state,
> num_scalers_need,
> intel_crtc, name, idx,
> - plane_state, scaler_id);
> + plane_state, scaler_id,
> + crtc_state-
> >hw.casf_params.need_scaler);
> if (ret < 0)
> return ret;
> }
> @@ -678,6 +690,15 @@ static void glk_program_nearest_filter_coefs(struct
> drm_i915_private *dev_priv,
> intel_de_write_fw(dev_priv, GLK_PS_COEF_INDEX_SET(pipe, id, set), 0);
> }
>
> +static u32 scaler_filter_select(void)
> +{
> + return (PS_FILTER_PROGRAMMED |
> + PS_Y_VERT_FILTER_SELECT(1) |
> + PS_Y_HORZ_FILTER_SELECT(0) |
> + PS_UV_VERT_FILTER_SELECT(1) |
> + PS_UV_HORZ_FILTER_SELECT(0));
> +}
This looks to be a constant value, can it be a macro?
> +
> static u32 skl_scaler_get_filter_select(enum drm_scaling_filter filter, int
> set) {
> if (filter == DRM_SCALING_FILTER_NEAREST_NEIGHBOR) { @@ -705,6
> +726,48 @@ static void skl_scaler_setup_filter(struct drm_i915_private
> *dev_priv, enum pipe
> }
> }
>
> +void casf_scaler_enable(struct intel_crtc_state *crtc_state) {
> + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
dev_priv => i915
> + struct drm_display_mode *adjusted_mode =
> + &crtc_state->hw.adjusted_mode;
> + struct intel_crtc_scaler_state *scaler_state =
> + &crtc_state->scaler_state;
> + struct drm_rect src, dest;
> + int id, width, height;
> + int x, y;
> + enum pipe pipe = crtc->pipe;
> + u32 ps_ctrl;
> +
> + width = adjusted_mode->crtc_hdisplay;
> + height = adjusted_mode->crtc_vdisplay;
> +
> + x = y = 0;
> + drm_rect_init(&dest, x, y, width, height);
> +
> + struct drm_rect *dst = &dest;
Declaration to be in the beginning of the function.
Also I don't see the value of dst being changed and dest being used elsewhere
in this function. In that case why is a copy of dest made?
> +
> + x = dst->x1;
> + y = dst->y1;
> + width = drm_rect_width(dst);
> + height = drm_rect_height(dst);
> + id = scaler_state->scaler_id;
> +
> + drm_rect_init(&src, 0, 0,
> + drm_rect_width(&crtc_state->pipe_src) << 16,
> + drm_rect_height(&crtc_state->pipe_src) << 16);
> +
> + ps_ctrl = PS_SCALER_EN | PS_BINDING_PIPE | scaler_state-
> >scalers[id].mode |
> + PS_BYPASS_ARMING | PS_DB_STALL | scaler_filter_select();
> +
> + intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, id), ps_ctrl);
> + intel_de_write_fw(dev_priv, SKL_PS_WIN_POS(pipe, id),
> + PS_WIN_XPOS(x) | PS_WIN_YPOS(y));
> + intel_de_write_fw(dev_priv, SKL_PS_WIN_SZ(pipe, id),
> + PS_WIN_XSIZE(width) | PS_WIN_YSIZE(height)); }
> +
> void skl_pfit_enable(const struct intel_crtc_state *crtc_state) {
> struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> @@ -875,16 +938,19 @@ void skl_scaler_get_config(struct intel_crtc_state
> *crtc_state)
> continue;
>
> id = i;
> - crtc_state->pch_pfit.enabled = true;
> +
> + if (!crtc_state->hw.casf_params.need_scaler)
> + crtc_state->pch_pfit.enabled = true;
>
> pos = intel_de_read(dev_priv, SKL_PS_WIN_POS(crtc->pipe, i));
> size = intel_de_read(dev_priv, SKL_PS_WIN_SZ(crtc->pipe, i));
>
> - drm_rect_init(&crtc_state->pch_pfit.dst,
> - REG_FIELD_GET(PS_WIN_XPOS_MASK, pos),
> - REG_FIELD_GET(PS_WIN_YPOS_MASK, pos),
> - REG_FIELD_GET(PS_WIN_XSIZE_MASK, size),
> - REG_FIELD_GET(PS_WIN_YSIZE_MASK, size));
> + if (!crtc_state->hw.casf_params.need_scaler)
> + drm_rect_init(&crtc_state->pch_pfit.dst,
> + REG_FIELD_GET(PS_WIN_XPOS_MASK,
> pos),
> + REG_FIELD_GET(PS_WIN_YPOS_MASK,
> pos),
> + REG_FIELD_GET(PS_WIN_XSIZE_MASK,
> size),
> + REG_FIELD_GET(PS_WIN_YSIZE_MASK,
> size));
>
> scaler_state->scalers[i].in_use = true;
> break;
> diff --git a/drivers/gpu/drm/i915/display/skl_scaler.h
> b/drivers/gpu/drm/i915/display/skl_scaler.h
> index 63f93ca03c89..444527e6a15b 100644
> --- a/drivers/gpu/drm/i915/display/skl_scaler.h
> +++ b/drivers/gpu/drm/i915/display/skl_scaler.h
> @@ -33,5 +33,6 @@ void skl_detach_scalers(const struct intel_crtc_state
> *crtc_state); void skl_scaler_disable(const struct intel_crtc_state
> *old_crtc_state);
>
> void skl_scaler_get_config(struct intel_crtc_state *crtc_state);
> +void casf_scaler_enable(struct intel_crtc_state *crtc_state);
>
> #endif
> --
> 2.25.1
Thanks and Regards,
Arun R Murthy
--------------------
