<div dir="ltr"> <div class="gmail_extra"> <div class="gmail_quote">On Thu, Jul 14, 2016 at 3:45 PM, Nanley Chery <<a href="mailto:nanleychery@gmail.com" target="_blank">nanleychery@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Sat, Jul 09, 2016 at 12:17:28PM -0700, Jason Ekstrand wrote: <div><div class="h5">> --- > src/intel/isl/isl.c | 11 +++++++++++ > src/intel/isl/isl.h | 17 +++++++++++++++++ > src/intel/isl/isl_format_layout.csv | 1 + > src/intel/isl/isl_gen6.c | 8 ++++++++ > src/intel/isl/isl_gen7.c | 10 +++++++++- > src/intel/isl/isl_gen8.c | 3 ++- > 6 files changed, 48 insertions(+), 2 deletions(-) > > diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c > index 8c114a2..9ccdea2 100644 > --- a/src/intel/isl/isl.c > +++ b/src/intel/isl/isl.c > @@ -167,6 +167,16 @@ isl_tiling_get_info(const struct isl_device *dev, > break; > } > > + case ISL_TILING_HIZ: > + /* HiZ buffers are required to have ISL_FORMAT_HIZ which is an 8x4 > + * 128bpb format. The tiling has the same physical dimensions as > + * Y-tiling but actually has two HiZ columns per Y-tiled column. > + */ > + assert(bs == 16); > + logical_el = isl_extent2d(16, 16); > + phys_B = isl_extent2d(128, 32); > + break; > + > default: > unreachable("not reached"); > } /* end switch */ > @@ -221,6 +231,7 @@ isl_surf_choose_tiling(const struct isl_device *dev, > CHOOSE(ISL_TILING_LINEAR); > } > > + CHOOSE(ISL_TILING_HIZ); > CHOOSE(ISL_TILING_Ys); > CHOOSE(ISL_TILING_Yf); > CHOOSE(ISL_TILING_Y0); > diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h > index 85af2d1..9a60bbd 100644 > --- a/src/intel/isl/isl.h > +++ b/src/intel/isl/isl.h > @@ -345,6 +345,14 @@ enum isl_format { > ISL_FORMAT_ASTC_LDR_2D_12X10_FLT16 = 638, > ISL_FORMAT_ASTC_LDR_2D_12X12_FLT16 = 639, > > + /* The formats that follow are internal to ISL and as such don't have an > + * explicit number. We'll just let the C compiler assign it for us. Any > + * actual hardware formats *must* come before these in the list. > + */ > + > + /* Formats for color compression surfaces */ > + ISL_FORMAT_HIZ, </div></div>Why is HiZ a color compression surface instead of a depth compression surface? </blockquote><div> </div><div>Aux surfaces then? It's not really "color" compression... </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div><div class="h5"> > + > /* Hardware doesn't understand this out-of-band value */ > ISL_FORMAT_UNSUPPORTED = UINT16_MAX, > }; > @@ -392,6 +400,9 @@ enum isl_txc { > ISL_TXC_ETC1, > ISL_TXC_ETC2, > ISL_TXC_ASTC, > + > + /* Used for auxiliary surface formats */ > + ISL_TXC_HIZ, > }; > > /** > @@ -410,6 +421,7 @@ enum isl_tiling { > ISL_TILING_Y0, /**< Legacy Y tiling */ > ISL_TILING_Yf, /**< Standard 4K tiling. The 'f' means "four". */ > ISL_TILING_Ys, /**< Standard 64K tiling. The 's' means "sixty-four". */ > + ISL_TILING_HIZ, /**< Tiling format for HiZ surfaces */ > }; > > /** > @@ -423,6 +435,7 @@ typedef uint32_t isl_tiling_flags_t; > #define ISL_TILING_Y0_BIT (1u << ISL_TILING_Y0) > #define ISL_TILING_Yf_BIT (1u << ISL_TILING_Yf) > #define ISL_TILING_Ys_BIT (1u << ISL_TILING_Ys) > +#define ISL_TILING_HIZ_BIT (1u << ISL_TILING_HIZ) > #define ISL_TILING_ANY_MASK (~0u) > #define ISL_TILING_NON_LINEAR_MASK (~ISL_TILING_LINEAR_BIT) > > @@ -505,6 +518,7 @@ typedef uint64_t isl_surf_usage_flags_t; > #define ISL_SURF_USAGE_DISPLAY_FLIP_X_BIT (1u << 10) > #define ISL_SURF_USAGE_DISPLAY_FLIP_Y_BIT (1u << 11) > #define ISL_SURF_USAGE_STORAGE_BIT (1u << 12) > +#define ISL_SURF_USAGE_HIZ_BIT (1u << 13) > /** @} */ > > /** > @@ -966,6 +980,9 @@ isl_format_has_bc_compression(enum isl_format fmt) > case ISL_TXC_ETC2: > case ISL_TXC_ASTC: > return false; > + > + case ISL_TXC_HIZ: > + unreachable("Should not be called on an aux surface"); > } > > unreachable("bad texture compression mode"); > diff --git a/src/intel/isl/isl_format_layout.csv b/src/intel/isl/isl_format_layout.csv > index f90fbe0..3e681e8 100644 > --- a/src/intel/isl/isl_format_layout.csv > +++ b/src/intel/isl/isl_format_layout.csv > @@ -314,3 +314,4 @@ ASTC_LDR_2D_10X8_FLT16 , 128, 10, 8, 1, sf16, sf16, sf16, sf16, , > ASTC_LDR_2D_10X10_FLT16 , 128, 10, 10, 1, sf16, sf16, sf16, sf16, , , , linear, astc > ASTC_LDR_2D_12X10_FLT16 , 128, 12, 10, 1, sf16, sf16, sf16, sf16, , , , linear, astc > ASTC_LDR_2D_12X12_FLT16 , 128, 12, 12, 1, sf16, sf16, sf16, sf16, , , , linear, astc > +HIZ , 128, 8, 4, 1, , , , , , , , , hiz > diff --git a/src/intel/isl/isl_gen6.c b/src/intel/isl/isl_gen6.c > index 699aa41..b5050ed 100644 > --- a/src/intel/isl/isl_gen6.c > +++ b/src/intel/isl/isl_gen6.c > @@ -89,6 +89,14 @@ gen6_choose_image_alignment_el(const struct isl_device *dev, > enum isl_msaa_layout msaa_layout, > struct isl_extent3d *image_align_el) > { > + if (info->format == ISL_FORMAT_HIZ) { > + /* HiZ surfaces are always aligned to 8x16 pixels in the primary surface > + * which works out to 2x2 HiZ elments. > + */ > + *image_align_el = isl_extent3d(2, 2, 1); > + return; > + } > + > /* Note that the surface's horizontal image alignment is not programmable > * on Sandybridge. > * > diff --git a/src/intel/isl/isl_gen7.c b/src/intel/isl/isl_gen7.c > index d9b0c08..349875f 100644 > --- a/src/intel/isl/isl_gen7.c > +++ b/src/intel/isl/isl_gen7.c > @@ -111,7 +111,8 @@ gen7_choose_msaa_layout(const struct isl_device *dev, > * In the table above, MSFMT_MSS refers to ISL_MSAA_LAYOUT_ARRAY, and > * MSFMT_DEPTH_STENCIL refers to ISL_MSAA_LAYOUT_INTERLEAVED. > */ > - if (isl_surf_usage_is_depth_or_stencil(info->usage)) > + if (isl_surf_usage_is_depth_or_stencil(info->usage) || > + (info->usage & ISL_SURF_USAGE_HIZ_BIT)) > require_interleaved = true; > </div></div>Higher up in this function, HiZ will be recognized as an compressed texture, and the msaa_layout function will bail. The recognition occurs because in isl_format_layout.csv, HIZ has the txc field set. I'll send a patch that moves the compressed texture check below this hunk. </blockquote><div> </div><div>I've been thinking about this and I think we want make is_compressed return false for aux surfaces. I'm not sure exactly how we want to do this. One option would be to add a ISL_TXC_FIRST_AUX enum and check for txc != ISL_TXC_NONE && txc < ISL_TXC_FIRST_AUX. </div><div>--Jason </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> - Nanley <div class="HOEnZb"><div class="h5"> > /* From the Ivybridge PRM, Volume 4 Part 1 p72, SURFACE_STATE, Multisampled > @@ -230,6 +231,13 @@ gen7_filter_tiling(const struct isl_device *dev, > *flags &= ~ISL_TILING_W_BIT; > } > > + /* The HiZ format and tiling always go together */ > + if (info->format == ISL_FORMAT_HIZ) { > + *flags &= ISL_TILING_HIZ_BIT; > + } else { > + *flags &= ~ISL_TILING_HIZ_BIT; > + } > + > if (info->usage & (ISL_SURF_USAGE_DISPLAY_ROTATE_90_BIT | > ISL_SURF_USAGE_DISPLAY_ROTATE_180_BIT | > ISL_SURF_USAGE_DISPLAY_ROTATE_270_BIT)) { > diff --git a/src/intel/isl/isl_gen8.c b/src/intel/isl/isl_gen8.c > index a46427a..62c331c 100644 > --- a/src/intel/isl/isl_gen8.c > +++ b/src/intel/isl/isl_gen8.c > @@ -84,7 +84,8 @@ gen8_choose_msaa_layout(const struct isl_device *dev, > if (isl_format_is_yuv(info->format)) > return false; > > - if (isl_surf_usage_is_depth_or_stencil(info->usage)) > + if (isl_surf_usage_is_depth_or_stencil(info->usage) || > + (info->usage & ISL_SURF_USAGE_HIZ_BIT)) > require_interleaved = true; > > if (require_array && require_interleaved) > -- > 2.5.0.400.gff86faf > </div></div><div class="HOEnZb"><div class="h5">> _______________________________________________ > mesa-dev mailing list > <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> > <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </div></div></blockquote></div> </div></div>