diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/intel/isl/isl.c | 119 |
1 files changed, 2 insertions, 117 deletions
diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index 5e3d279b0b6..d3124debfaa 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -1374,116 +1374,6 @@ isl_calc_row_pitch(const struct isl_device *dev, return true; } -/** - * Calculate and apply any padding required for the surface. - * - * @param[inout] total_h_el is updated with the new height - * @param[out] pad_bytes is overwritten with additional padding requirements. - */ -static void -isl_apply_surface_padding(const struct isl_device *dev, - const struct isl_surf_init_info *restrict info, - const struct isl_tile_info *tile_info, - uint32_t *total_h_el, - uint32_t *pad_bytes) -{ - const struct isl_format_layout *fmtl = isl_format_get_layout(info->format); - - *pad_bytes = 0; - - /* From the Broadwell PRM >> Volume 5: Memory Views >> Common Surface - * Formats >> Surface Padding Requirements >> Render Target and Media - * Surfaces: - * - * The data port accesses data (pixels) outside of the surface if they - * are contained in the same cache request as pixels that are within the - * surface. These pixels will not be returned by the requesting message, - * however if these pixels lie outside of defined pages in the GTT, - * a GTT error will result when the cache request is processed. In - * order to avoid these GTT errors, “padding” at the bottom of the - * surface is sometimes necessary. - * - * From the Broadwell PRM >> Volume 5: Memory Views >> Common Surface - * Formats >> Surface Padding Requirements >> Sampling Engine Surfaces: - * - * ... Lots of padding requirements, all listed separately below. - */ - - /* We can safely ignore the first padding requirement, quoted below, - * because isl doesn't do buffers. - * - * - [pre-BDW] For buffers, which have no inherent “height,” padding - * requirements are different. A buffer must be padded to the next - * multiple of 256 array elements, with an additional 16 bytes added - * beyond that to account for the L1 cache line. - */ - - /* - * - For compressed textures [...], padding at the bottom of the surface - * is to an even compressed row. - */ - if (isl_format_is_compressed(info->format)) - *total_h_el = isl_align(*total_h_el, 2); - - /* - * - For cube surfaces, an additional two rows of padding are required - * at the bottom of the surface. - */ - if (info->usage & ISL_SURF_USAGE_CUBE_BIT) - *total_h_el += 2; - - /* - * - For packed YUV, 96 bpt, 48 bpt, and 24 bpt surface formats, - * additional padding is required. These surfaces require an extra row - * plus 16 bytes of padding at the bottom in addition to the general - * padding requirements. - */ - if (isl_format_is_yuv(info->format) && - (fmtl->bpb == 96 || fmtl->bpb == 48|| fmtl->bpb == 24)) { - *total_h_el += 1; - *pad_bytes += 16; - } - - /* - * - For linear surfaces, additional padding of 64 bytes is required at - * the bottom of the surface. This is in addition to the padding - * required above. - */ - if (tile_info->tiling == ISL_TILING_LINEAR) - *pad_bytes += 64; - - /* The below text weakens, not strengthens, the padding requirements for - * linear surfaces. Therefore we can safely ignore it. - * - * - [BDW+] For SURFTYPE_BUFFER, SURFTYPE_1D, and SURFTYPE_2D non-array, - * non-MSAA, non-mip-mapped surfaces in linear memory, the only - * padding requirement is to the next aligned 64-byte boundary beyond - * the end of the surface. The rest of the padding requirements - * documented above do not apply to these surfaces. - */ - - /* - * - [SKL+] For SURFTYPE_2D and SURFTYPE_3D with linear mode and - * height % 4 != 0, the surface must be padded with - * 4-(height % 4)*Surface Pitch # of bytes. - */ - if (ISL_DEV_GEN(dev) >= 9 && - tile_info->tiling == ISL_TILING_LINEAR && - (info->dim == ISL_SURF_DIM_2D || info->dim == ISL_SURF_DIM_3D)) { - *total_h_el = isl_align(*total_h_el, 4); - } - - /* - * - [SKL+] For SURFTYPE_1D with linear mode, the surface must be padded - * to 4 times the Surface Pitch # of bytes - */ - if (ISL_DEV_GEN(dev) >= 9 && - tile_info->tiling == ISL_TILING_LINEAR && - info->dim == ISL_SURF_DIM_1D) { - *total_h_el += 4; - } -} - bool isl_surf_init_s(const struct isl_device *dev, struct isl_surf *surf, @@ -1536,10 +1426,6 @@ isl_surf_init_s(const struct isl_device *dev, array_pitch_span, &array_pitch_el_rows, &phys_total_el); - uint32_t padded_h_el = phys_total_el.h; - uint32_t pad_bytes; - isl_apply_surface_padding(dev, info, &tile_info, &padded_h_el, &pad_bytes); - uint32_t row_pitch; if (!isl_calc_row_pitch(dev, info, &tile_info, dim_layout, &phys_total_el, &row_pitch)) @@ -1548,7 +1434,7 @@ isl_surf_init_s(const struct isl_device *dev, uint32_t base_alignment; uint64_t size; if (tiling == ISL_TILING_LINEAR) { - size = (uint64_t) row_pitch * padded_h_el + pad_bytes; + size = (uint64_t) row_pitch * phys_total_el.h; /* From the Broadwell PRM Vol 2d, RENDER_SURFACE_STATE::SurfaceBaseAddress: * @@ -1569,9 +1455,8 @@ isl_surf_init_s(const struct isl_device *dev, } base_alignment = isl_round_up_to_power_of_two(base_alignment); } else { - padded_h_el += isl_align_div_npot(pad_bytes, row_pitch); const uint32_t total_h_tl = - isl_align_div(padded_h_el, tile_info.logical_extent_el.height); + isl_align_div(phys_total_el.h, tile_info.logical_extent_el.height); size = (uint64_t) total_h_tl * tile_info.phys_extent_B.height * row_pitch; |