/* * Copyright (c) 2018 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ #include "isl_gfx9.h" #include "isl_gfx12.h" #include "isl_priv.h" void isl_gfx125_choose_image_alignment_el(const struct isl_device *dev, const struct isl_surf_init_info *restrict info, enum isl_tiling tiling, enum isl_dim_layout dim_layout, enum isl_msaa_layout msaa_layout, struct isl_extent3d *image_align_el) { const struct isl_format_layout *fmtl = isl_format_get_layout(info->format); if (tiling == ISL_TILING_64) { /* From RENDER_SURFACE_STATE::SurfaceHorizontalAlignment, * * This field is ignored for Tile64 surface formats because horizontal * alignment is always to the start of the next tile in that case. * * From RENDER_SURFACE_STATE::SurfaceQPitch, * * Because MSAA is only supported for Tile64, QPitch must also be * programmed to an aligned tile boundary for MSAA surfaces. * * Images in this surface must be tile-aligned. The table on the Bspec * page, "2D/CUBE Alignment Requirement", shows that the vertical * alignment is also a tile height for non-MSAA as well. */ struct isl_tile_info tile_info; isl_tiling_get_info(tiling, info->dim, msaa_layout, fmtl->bpb, info->samples, &tile_info); *image_align_el = isl_extent3d(tile_info.logical_extent_el.w, tile_info.logical_extent_el.h, 1); } else if (isl_surf_usage_is_depth(info->usage)) { /* From RENDER_SURFACE_STATE::SurfaceHorizontalAlignment, * * - 16b Depth Surfaces Must Be HALIGN=16Bytes (8texels) * - 32b Depth Surfaces Must Be HALIGN=32Bytes (8texels) * * From RENDER_SURFACE_STATE::SurfaceVerticalAlignment, * * This field is intended to be set to VALIGN_4 if the surface * was rendered as a depth buffer [...] * * and * * This field should also be set to VALIGN_8 if the surface was * rendered as a D16_UNORM depth buffer [...] */ *image_align_el = info->format != ISL_FORMAT_R16_UNORM ? isl_extent3d(8, 4, 1) : isl_extent3d(8, 8, 1); } else if (isl_surf_usage_is_stencil(info->usage)) { /* From RENDER_SURFACE_STATE::SurfaceHorizontalAlignment, * * - Stencil Surfaces (8b) Must be HALIGN=16Bytes (16texels) * * From RENDER_SURFACE_STATE::SurfaceVerticalAlignment, * * This field is intended to be set to VALIGN_8 only if * the surface was rendered as a stencil buffer, since stencil buffer * surfaces support only alignment of 8. */ *image_align_el = isl_extent3d(16, 8, 1); } else if (!isl_is_pow2(fmtl->bpb)) { /* From RENDER_SURFACE_STATE::SurfaceHorizontalAlignment, * * - Linear Surfaces surfaces must use HALIGN=128, including 1D which * is always Linear. For 24,48 and 96bpp this means 128texels. * - Tiled 24bpp, 48bpp and 96bpp surfaces must use HALIGN=16 */ *image_align_el = tiling == ISL_TILING_LINEAR ? isl_extent3d(128, 4, 1) : isl_extent3d(16, 4, 1); } else { /* From RENDER_SURFACE_STATE::SurfaceHorizontalAlignment, * * - Losslessly Compressed Surfaces Must be HALIGN=128 for all * supported Bpp * - 64bpe and 128bpe Surfaces Must Be HALIGN=64Bytes or 128Bytes (4, * 8 texels or 16 texels) * - Linear Surfaces surfaces must use HALIGN=128, including 1D which * is always Linear. * * Even though we could choose a horizontal alignment of 64B for certain * 64 and 128-bit formats, we want to be able to enable CCS whenever * possible and CCS requires 128B horizontal alignment. */ *image_align_el = isl_extent3d(128 * 8 / fmtl->bpb, 4, 1); } } void isl_gfx12_choose_image_alignment_el(const struct isl_device *dev, const struct isl_surf_init_info *restrict info, enum isl_tiling tiling, enum isl_dim_layout dim_layout, enum isl_msaa_layout msaa_layout, struct isl_extent3d *image_align_el) { /* Handled by isl_choose_image_alignment_el */ assert(info->format != ISL_FORMAT_HIZ); const struct isl_format_layout *fmtl = isl_format_get_layout(info->format); if (fmtl->txc == ISL_TXC_CCS) { /* This CCS compresses a 2D-view of the entire surface. */ assert(info->levels == 1 && info->array_len == 1 && info->depth == 1); *image_align_el = isl_extent3d(1, 1, 1); return; } if (isl_surf_usage_is_depth(info->usage)) { /* The alignment parameters for depth buffers are summarized in the * following table: * * Surface Format | MSAA | Align Width | Align Height * -----------------+-------------+-------------+-------------- * D16_UNORM | 1x, 4x, 16x | 8 | 8 * ----------------+-------------+-------------+-------------- * D16_UNORM | 2x, 8x | 16 | 4 * ----------------+-------------+-------------+-------------- * other | any | 8 | 4 * -----------------+-------------+-------------+-------------- */ assert(isl_is_pow2(info->samples)); *image_align_el = info->format != ISL_FORMAT_R16_UNORM ? isl_extent3d(8, 4, 1) : (info->samples == 2 || info->samples == 8 ? isl_extent3d(16, 4, 1) : isl_extent3d(8, 8, 1)); } else if (isl_surf_usage_is_stencil(info->usage)) { *image_align_el = isl_extent3d(16, 8, 1); } else { isl_gfx9_choose_image_alignment_el(dev, info, tiling, dim_layout, msaa_layout, image_align_el); } }