On Wed, Oct 27, 2021 at 07:56:25PM +0300, Imre Deak wrote:
> On Wed, Oct 27, 2021 at 06:46:53PM +0300, Stanislav Lisovskiy wrote:
> > TileF(Tile4 in bspec) format is 4K tile organized into
> > 64B subtiles with same basic shape as for legacy TileY
> > which will be supported by Display13.
> 
> Is it supported on all D13 or only on DG2? Could you point to the bspec
> page describing this?

Yes, it is supported on all D13 to my undertanding.
Check with BSpec 44917

Stan

> 
> > 
> > v2: - Fixed wrong case condition(Jani Nikula)
> >     - Increased I915_FORMAT_MOD_F_TILED up to 12(Imre Deak)
> > 
> > v3: - s/I915_TILING_F/TILING_4/g
> >     - s/I915_FORMAT_MOD_F_TILED/I915_FORMAT_MOD_4_TILED/g
> >     - Removed unneeded fencing code
> > 
> > v4: - Rebased, fixed merge conflict with new table-oriented
> >       format modifier checking(Stan)
> >     - Replaced the rest of "Tile F" mentions to "Tile 4"(Stan)
> > 
> > Cc: Imre Deak <[email protected]>
> > Cc: Matt Roper <[email protected]>
> > Cc: Maarten Lankhorst <[email protected]>
> > Signed-off-by: Stanislav Lisovskiy <[email protected]>
> > Signed-off-by: Matt Roper <[email protected]>
> > Signed-off-by: Juha-Pekka Heikkilä <[email protected]>
> > ---
> >  drivers/gpu/drm/i915/display/intel_display.c  |  1 +
> >  drivers/gpu/drm/i915/display/intel_fb.c       | 11 ++++++++++
> >  drivers/gpu/drm/i915/display/intel_fbc.c      |  1 +
> >  .../drm/i915/display/intel_plane_initial.c    |  1 +
> >  .../drm/i915/display/skl_universal_plane.c    | 20 +++++++++++--------
> >  drivers/gpu/drm/i915/i915_drv.h               |  1 +
> >  drivers/gpu/drm/i915/i915_pci.c               |  1 +
> >  drivers/gpu/drm/i915/i915_reg.h               |  1 +
> >  drivers/gpu/drm/i915/intel_device_info.h      |  1 +
> >  drivers/gpu/drm/i915/intel_pm.c               |  1 +
> >  include/uapi/drm/drm_fourcc.h                 |  8 ++++++++
> >  11 files changed, 39 insertions(+), 8 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
> > b/drivers/gpu/drm/i915/display/intel_display.c
> > index 79cd158503b3..9b3913d73213 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -7755,6 +7755,7 @@ static int intel_atomic_check_async(struct 
> > intel_atomic_state *state)
> >             case I915_FORMAT_MOD_X_TILED:
> >             case I915_FORMAT_MOD_Y_TILED:
> >             case I915_FORMAT_MOD_Yf_TILED:
> > +           case I915_FORMAT_MOD_4_TILED:
> >                     break;
> >             default:
> >                     drm_dbg_kms(&i915->drm,
> > diff --git a/drivers/gpu/drm/i915/display/intel_fb.c 
> > b/drivers/gpu/drm/i915/display/intel_fb.c
> > index 9ce1d273dc7e..d3dec51285f7 100644
> > --- a/drivers/gpu/drm/i915/display/intel_fb.c
> > +++ b/drivers/gpu/drm/i915/display/intel_fb.c
> > @@ -188,6 +188,10 @@ static const struct intel_modifier_desc 
> > intel_modifiers[] = {
> >             .modifier = I915_FORMAT_MOD_Yf_TILED,
> >             .display_ver = { 9, 11 },
> >             .tiling = I915_TILING_NONE,
> > +   }, {
> > +           .modifier = I915_FORMAT_MOD_4_TILED,
> > +           .display_ver = { 12, 13 },
> 
> From display_ver 13.
> 
> > +           .tiling = I915_TILING_NONE,
> >     }, {
> >             .modifier = I915_FORMAT_MOD_Y_TILED,
> >             .display_ver = { 9, 13 },
> > @@ -575,6 +579,12 @@ intel_tile_width_bytes(const struct drm_framebuffer 
> > *fb, int color_plane)
> >                     return 128;
> >             else
> >                     return 512;
> > +   case I915_FORMAT_MOD_4_TILED:
> > +           /*
> > +            * Each 4K tile consists of 64B(8*8) subtiles, with
> > +            * same shape as Y Tile(i.e 4*16B OWords)
> > +            */
> > +           return 128;
> >     case I915_FORMAT_MOD_Y_TILED_CCS:
> >             if (intel_fb_is_ccs_aux_plane(fb, color_plane))
> >                     return 128;
> > @@ -743,6 +753,7 @@ unsigned int intel_surf_alignment(const struct 
> > drm_framebuffer *fb,
> >     case I915_FORMAT_MOD_Y_TILED_CCS:
> >     case I915_FORMAT_MOD_Yf_TILED_CCS:
> >     case I915_FORMAT_MOD_Y_TILED:
> > +   case I915_FORMAT_MOD_4_TILED:
> >     case I915_FORMAT_MOD_Yf_TILED:
> >             return 1 * 1024 * 1024;
> >     default:
> > diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c 
> > b/drivers/gpu/drm/i915/display/intel_fbc.c
> > index 1f66de77a6b1..f079a771f802 100644
> > --- a/drivers/gpu/drm/i915/display/intel_fbc.c
> > +++ b/drivers/gpu/drm/i915/display/intel_fbc.c
> > @@ -747,6 +747,7 @@ static bool tiling_is_valid(struct drm_i915_private 
> > *dev_priv,
> >     case DRM_FORMAT_MOD_LINEAR:
> >     case I915_FORMAT_MOD_Y_TILED:
> >     case I915_FORMAT_MOD_Yf_TILED:
> > +   case I915_FORMAT_MOD_4_TILED:
> >             return DISPLAY_VER(dev_priv) >= 9;
> >     case I915_FORMAT_MOD_X_TILED:
> >             return true;
> > diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c 
> > b/drivers/gpu/drm/i915/display/intel_plane_initial.c
> > index dcd698a02da2..d80855ee9b96 100644
> > --- a/drivers/gpu/drm/i915/display/intel_plane_initial.c
> > +++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c
> > @@ -125,6 +125,7 @@ intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
> >     case DRM_FORMAT_MOD_LINEAR:
> >     case I915_FORMAT_MOD_X_TILED:
> >     case I915_FORMAT_MOD_Y_TILED:
> > +   case I915_FORMAT_MOD_4_TILED:
> >             break;
> >     default:
> >             drm_dbg(&dev_priv->drm,
> > diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c 
> > b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> > index 69fd56de83a7..aeca96925feb 100644
> > --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> > +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> > @@ -751,6 +751,8 @@ static u32 skl_plane_ctl_tiling(u64 fb_modifier)
> >             return PLANE_CTL_TILED_X;
> >     case I915_FORMAT_MOD_Y_TILED:
> >             return PLANE_CTL_TILED_Y;
> > +   case I915_FORMAT_MOD_4_TILED:
> > +           return PLANE_CTL_TILED_4;
> >     case I915_FORMAT_MOD_Y_TILED_CCS:
> >     case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
> >             return PLANE_CTL_TILED_Y | 
> > PLANE_CTL_RENDER_DECOMPRESSION_ENABLE;
> > @@ -1930,9 +1932,7 @@ static bool gen12_plane_format_mod_supported(struct 
> > drm_plane *_plane,
> >     case DRM_FORMAT_Y216:
> >     case DRM_FORMAT_XVYU12_16161616:
> >     case DRM_FORMAT_XVYU16161616:
> > -           if (modifier == DRM_FORMAT_MOD_LINEAR ||
> > -               modifier == I915_FORMAT_MOD_X_TILED ||
> > -               modifier == I915_FORMAT_MOD_Y_TILED)
> > +           if (!intel_fb_is_ccs_modifier(modifier))
> >                     return true;
> >             fallthrough;
> >     default:
> > @@ -2241,11 +2241,15 @@ skl_get_initial_plane_config(struct intel_crtc 
> > *crtc,
> >             else
> >                     fb->modifier = I915_FORMAT_MOD_Y_TILED;
> >             break;
> > -   case PLANE_CTL_TILED_YF:
> > -           if (val & PLANE_CTL_RENDER_DECOMPRESSION_ENABLE)
> > -                   fb->modifier = I915_FORMAT_MOD_Yf_TILED_CCS;
> > -           else
> > -                   fb->modifier = I915_FORMAT_MOD_Yf_TILED;
> > +   case PLANE_CTL_TILED_YF: /* aka PLANE_CTL_TILED_4 on XE_LPD+ */
> > +           if (DISPLAY_VER(dev_priv) >= 13) {
> > +                   fb->modifier = I915_FORMAT_MOD_4_TILED;
> > +           } else {
> > +                   if (val & PLANE_CTL_RENDER_DECOMPRESSION_ENABLE)
> > +                           fb->modifier = I915_FORMAT_MOD_Yf_TILED_CCS;
> > +                   else
> > +                           fb->modifier = I915_FORMAT_MOD_Yf_TILED;
> > +           }
> >             break;
> >     default:
> >             MISSING_CASE(tiling);
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h 
> > b/drivers/gpu/drm/i915/i915_drv.h
> > index 19e6700a4315..0a32ce800677 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -1627,6 +1627,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
> >  #define CMDPARSER_USES_GGTT(dev_priv) (GRAPHICS_VER(dev_priv) == 7)
> >  
> >  #define HAS_LLC(dev_priv)  (INTEL_INFO(dev_priv)->has_llc)
> > +#define HAS_FTILE(dev_priv)    (INTEL_INFO(dev_priv)->has_4tile)
> >  #define HAS_SNOOP(dev_priv)        (INTEL_INFO(dev_priv)->has_snoop)
> >  #define HAS_EDRAM(dev_priv)        ((dev_priv)->edram_size_mb)
> >  #define HAS_SECURE_BATCHES(dev_priv) (GRAPHICS_VER(dev_priv) < 6)
> > diff --git a/drivers/gpu/drm/i915/i915_pci.c 
> > b/drivers/gpu/drm/i915/i915_pci.c
> > index 169837de395d..8831b1885934 100644
> > --- a/drivers/gpu/drm/i915/i915_pci.c
> > +++ b/drivers/gpu/drm/i915/i915_pci.c
> > @@ -972,6 +972,7 @@ static const struct intel_device_info adl_p_info = {
> >     .display.has_cdclk_crawl = 1,
> >     .display.has_modular_fia = 1,
> >     .display.has_psr_hw_tracking = 0,
> > +   .has_4tile = 1, \
> 
> If it's only on DG2 then it should be added there.
> 
> >     .platform_engine_mask =
> >             BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2),
> >     .ppgtt_size = 48,
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h 
> > b/drivers/gpu/drm/i915/i915_reg.h
> > index 7c97bc352497..b70b72b032ef 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -7195,6 +7195,7 @@ enum {
> >  #define   PLANE_CTL_TILED_X                        (1 << 10)
> >  #define   PLANE_CTL_TILED_Y                        (4 << 10)
> >  #define   PLANE_CTL_TILED_YF                       (5 << 10)
> > +#define   PLANE_CTL_TILED_4                        (5 << 10)
> >  #define   PLANE_CTL_ASYNC_FLIP                     (1 << 9)
> >  #define   PLANE_CTL_FLIP_HORIZONTAL                (1 << 8)
> >  #define   PLANE_CTL_MEDIA_DECOMPRESSION_ENABLE     (1 << 4) /* TGL+ */
> > diff --git a/drivers/gpu/drm/i915/intel_device_info.h 
> > b/drivers/gpu/drm/i915/intel_device_info.h
> > index 8e6f48d1eb7b..6c543a152250 100644
> > --- a/drivers/gpu/drm/i915/intel_device_info.h
> > +++ b/drivers/gpu/drm/i915/intel_device_info.h
> > @@ -125,6 +125,7 @@ enum intel_ppgtt_type {
> >     func(has_64bit_reloc); \
> >     func(gpu_reset_clobbers_display); \
> >     func(has_reset_engine); \
> > +   func(has_4tile); \
> >     func(has_global_mocs); \
> >     func(has_gt_uc); \
> >     func(has_l3_dpf); \
> > diff --git a/drivers/gpu/drm/i915/intel_pm.c 
> > b/drivers/gpu/drm/i915/intel_pm.c
> > index cffb3df35a63..1ac1af0a7f2d 100644
> > --- a/drivers/gpu/drm/i915/intel_pm.c
> > +++ b/drivers/gpu/drm/i915/intel_pm.c
> > @@ -5378,6 +5378,7 @@ skl_compute_wm_params(const struct intel_crtc_state 
> > *crtc_state,
> >     }
> >  
> >     wp->y_tiled = modifier == I915_FORMAT_MOD_Y_TILED ||
> > +                 modifier == I915_FORMAT_MOD_4_TILED ||
> >                   modifier == I915_FORMAT_MOD_Yf_TILED ||
> >                   modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
> >                   modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
> > diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> > index 45a914850be0..982b0a9fa78b 100644
> > --- a/include/uapi/drm/drm_fourcc.h
> > +++ b/include/uapi/drm/drm_fourcc.h
> > @@ -558,6 +558,14 @@ extern "C" {
> >   * pitch is required to be a multiple of 4 tile widths.
> >   */
> >  #define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC fourcc_mod_code(INTEL, 8)
> > +/*
> > + * Intel F-tiling(aka Tile4) layout
> > + *
> > + * This is a tiled layout using 4Kb tiles in row-major layout.
> > + * Within the tile pixels are laid out in 64 byte units / sub-tiles in 
> > OWORD
> > + * (16 bytes) chunks column-major..
> > + */
> > +#define I915_FORMAT_MOD_4_TILED         fourcc_mod_code(INTEL, 12)
> >  
> >  /*
> >   * Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
> > -- 
> > 2.24.1.485.gad05a3d8e5
> > 

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