On Tue, 18 Apr 2023, Ville Syrjala <[email protected]> wrote:
> From: Ville Syrjälä <[email protected]>
>
> Modernize the gmch pfit register definitions using REG_BIT/etc.
>
> Signed-off-by: Ville Syrjälä <[email protected]>

Reviewed-by: Jani Nikula <[email protected]>

> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 15 +++---
>  drivers/gpu/drm/i915/display/intel_overlay.c | 16 +++---
>  drivers/gpu/drm/i915/display/intel_panel.c   |  8 +--
>  drivers/gpu/drm/i915/i915_reg.h              | 54 ++++++++++----------
>  4 files changed, 48 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
> b/drivers/gpu/drm/i915/display/intel_display.c
> index a450d62e431c..ea1b0e87ae35 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2749,6 +2749,7 @@ static void i9xx_get_pfit_config(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);
> +     enum pipe pipe;
>       u32 tmp;
>  
>       if (!i9xx_has_pfit(dev_priv))
> @@ -2759,13 +2760,13 @@ static void i9xx_get_pfit_config(struct 
> intel_crtc_state *crtc_state)
>               return;
>  
>       /* Check whether the pfit is attached to our pipe. */
> -     if (DISPLAY_VER(dev_priv) < 4) {
> -             if (crtc->pipe != PIPE_B)
> -                     return;
> -     } else {
> -             if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
> -                     return;
> -     }
> +     if (DISPLAY_VER(dev_priv) >= 4)
> +             pipe = REG_FIELD_GET(PFIT_PIPE_MASK, tmp);
> +     else
> +             pipe = PIPE_B;
> +
> +     if (pipe != crtc->pipe)
> +             return;
>  
>       crtc_state->gmch_pfit.control = tmp;
>       crtc_state->gmch_pfit.pgm_ratios =
> diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c 
> b/drivers/gpu/drm/i915/display/intel_overlay.c
> index c12bdca8da9b..1813ab5056a1 100644
> --- a/drivers/gpu/drm/i915/display/intel_overlay.c
> +++ b/drivers/gpu/drm/i915/display/intel_overlay.c
> @@ -935,21 +935,25 @@ static int check_overlay_possible_on_crtc(struct 
> intel_overlay *overlay,
>  static void update_pfit_vscale_ratio(struct intel_overlay *overlay)
>  {
>       struct drm_i915_private *dev_priv = overlay->i915;
> -     u32 pfit_control = intel_de_read(dev_priv, PFIT_CONTROL);
>       u32 ratio;
>  
>       /* XXX: This is not the same logic as in the xorg driver, but more in
>        * line with the intel documentation for the i965
>        */
>       if (DISPLAY_VER(dev_priv) >= 4) {
> +             u32 tmp = intel_de_read(dev_priv, PFIT_PGM_RATIOS);
> +
>               /* on i965 use the PGM reg to read out the autoscaler values */
> -             ratio = intel_de_read(dev_priv, PFIT_PGM_RATIOS) >> 
> PFIT_VERT_SCALE_SHIFT_965;
> +             ratio = REG_FIELD_GET(PFIT_VERT_SCALE_MASK_965, tmp);
>       } else {
> -             if (pfit_control & VERT_AUTO_SCALE)
> -                     ratio = intel_de_read(dev_priv, PFIT_AUTO_RATIOS);
> +             u32 tmp;
> +
> +             if (intel_de_read(dev_priv, PFIT_CONTROL) & VERT_AUTO_SCALE)
> +                     tmp = intel_de_read(dev_priv, PFIT_AUTO_RATIOS);
>               else
> -                     ratio = intel_de_read(dev_priv, PFIT_PGM_RATIOS);
> -             ratio >>= PFIT_VERT_SCALE_SHIFT;
> +                     tmp = intel_de_read(dev_priv, PFIT_PGM_RATIOS);
> +
> +             ratio = REG_FIELD_GET(PFIT_VERT_SCALE_MASK, tmp);
>       }
>  
>       overlay->pfit_vscale_ratio = ratio;
> diff --git a/drivers/gpu/drm/i915/display/intel_panel.c 
> b/drivers/gpu/drm/i915/display/intel_panel.c
> index 9acdd68b2dbc..71cd08f44ed0 100644
> --- a/drivers/gpu/drm/i915/display/intel_panel.c
> +++ b/drivers/gpu/drm/i915/display/intel_panel.c
> @@ -564,8 +564,8 @@ static void i9xx_scale_aspect(struct intel_crtc_state 
> *crtc_state,
>                       bits = panel_fitter_scaling(pipe_src_h,
>                                                   
> adjusted_mode->crtc_vdisplay);
>  
> -                     *pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
> -                                          bits << PFIT_VERT_SCALE_SHIFT);
> +                     *pfit_pgm_ratios |= (PFIT_HORIZ_SCALE(bits) |
> +                                          PFIT_VERT_SCALE(bits));
>                       *pfit_control |= (PFIT_ENABLE |
>                                         VERT_INTERP_BILINEAR |
>                                         HORIZ_INTERP_BILINEAR);
> @@ -579,8 +579,8 @@ static void i9xx_scale_aspect(struct intel_crtc_state 
> *crtc_state,
>                       bits = panel_fitter_scaling(pipe_src_w,
>                                                   
> adjusted_mode->crtc_hdisplay);
>  
> -                     *pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
> -                                          bits << PFIT_VERT_SCALE_SHIFT);
> +                     *pfit_pgm_ratios |= (PFIT_HORIZ_SCALE(bits) |
> +                                          PFIT_VERT_SCALE(bits));
>                       *pfit_control |= (PFIT_ENABLE |
>                                         VERT_INTERP_BILINEAR |
>                                         HORIZ_INTERP_BILINEAR);
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index f472baf242dc..cb8611aaaa5e 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -2337,35 +2337,33 @@
>  
>  /* Panel fitting */
>  #define PFIT_CONTROL _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61230)
> -#define   PFIT_ENABLE                (1 << 31)
> -#define   PFIT_PIPE_MASK     (3 << 29)
> -#define   PFIT_PIPE_SHIFT    29
> -#define   PFIT_PIPE(pipe)    ((pipe) << 29)
> -#define   VERT_INTERP_DISABLE        (0 << 10)
> -#define   VERT_INTERP_BILINEAR       (1 << 10)
> -#define   VERT_INTERP_MASK   (3 << 10)
> -#define   VERT_AUTO_SCALE    (1 << 9)
> -#define   HORIZ_INTERP_DISABLE       (0 << 6)
> -#define   HORIZ_INTERP_BILINEAR      (1 << 6)
> -#define   HORIZ_INTERP_MASK  (3 << 6)
> -#define   HORIZ_AUTO_SCALE   (1 << 5)
> -#define   PANEL_8TO6_DITHER_ENABLE (1 << 3)
> -#define   PFIT_FILTER_FUZZY  (0 << 24)
> -#define   PFIT_SCALING_AUTO  (0 << 26)
> -#define   PFIT_SCALING_PROGRAMMED (1 << 26)
> -#define   PFIT_SCALING_PILLAR        (2 << 26)
> -#define   PFIT_SCALING_LETTER        (3 << 26)
> +#define   PFIT_ENABLE                        REG_BIT(31)
> +#define   PFIT_PIPE_MASK             REG_GENMASK(30, 29) /* 965+ */
> +#define   PFIT_PIPE(pipe)            REG_FIELD_PREP(PFIT_PIPE_MASK, (pipe))
> +#define   PFIT_SCALING_MASK          REG_GENMASK(28, 26) /* 965+ */
> +#define   PFIT_SCALING_AUTO          REG_FIELD_PREP(PFIT_SCALING_MASK, 0)
> +#define   PFIT_SCALING_PROGRAMMED    REG_FIELD_PREP(PFIT_SCALING_MASK, 1)
> +#define   PFIT_SCALING_PILLAR                
> REG_FIELD_PREP(PFIT_SCALING_MASK, 2)
> +#define   PFIT_SCALING_LETTER                
> REG_FIELD_PREP(PFIT_SCALING_MASK, 3)
> +#define   PFIT_FILTER_MASK           REG_GENMASK(25, 24) /* 965+ */
> +#define   PFIT_FILTER_FUZZY          REG_FIELD_PREP(PFIT_FILTER_MASK, 0)
> +#define   PFIT_FILTER_CRISP          REG_FIELD_PREP(PFIT_FILTER_MASK, 1)
> +#define   PFIT_FILTER_MEDIAN         REG_FIELD_PREP(PFIT_FILTER_MASK, 2)
> +#define   VERT_INTERP_MASK           REG_GENMASK(11, 10) /* pre-965 */
> +#define   VERT_INTERP_BILINEAR               
> REG_FIELD_PREP(VERT_INTERP_MASK, 1)
> +#define   VERT_AUTO_SCALE            REG_BIT(9) /* pre-965 */
> +#define   HORIZ_INTERP_MASK          REG_GENMASK(7, 6) /* pre-965 */
> +#define   HORIZ_INTERP_BILINEAR              
> REG_FIELD_PREP(HORIZ_INTERP_MASK, 1)
> +#define   HORIZ_AUTO_SCALE           REG_BIT(5) /* pre-965 */
> +#define   PANEL_8TO6_DITHER_ENABLE   REG_BIT(3) /* pre-965 */
> +
>  #define PFIT_PGM_RATIOS _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61234)
> -/* Pre-965 */
> -#define              PFIT_VERT_SCALE_SHIFT           20
> -#define              PFIT_VERT_SCALE_MASK            0xfff00000
> -#define              PFIT_HORIZ_SCALE_SHIFT          4
> -#define              PFIT_HORIZ_SCALE_MASK           0x0000fff0
> -/* 965+ */
> -#define              PFIT_VERT_SCALE_SHIFT_965       16
> -#define              PFIT_VERT_SCALE_MASK_965        0x1fff0000
> -#define              PFIT_HORIZ_SCALE_SHIFT_965      0
> -#define              PFIT_HORIZ_SCALE_MASK_965       0x00001fff
> +#define   PFIT_VERT_SCALE_MASK               REG_GENMASK(31, 20) /* pre-965 
> */
> +#define   PFIT_VERT_SCALE(x)         REG_FIELD_PREP(PFIT_VERT_SCALE_MASK, 
> (x))
> +#define   PFIT_HORIZ_SCALE_MASK              REG_GENMASK(15, 4) /* pre-965 */
> +#define   PFIT_HORIZ_SCALE(x)                
> REG_FIELD_PREP(PFIT_HORIZ_SCALE_MASK, (x))
> +#define   PFIT_VERT_SCALE_MASK_965   REG_GENMASK(28, 16) /* 965+ */
> +#define   PFIT_HORIZ_SCALE_MASK_965  REG_GENMASK(12, 0) /* 965+ */
>  
>  #define PFIT_AUTO_RATIOS _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61238)

-- 
Jani Nikula, Intel Open Source Graphics Center

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