aco: implement a workaround for the image load DCC hw bug on GFX10.3
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9919>
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@ -5471,6 +5471,29 @@ Temp get_sampler_desc(isel_context *ctx, nir_deref_instr *deref_instr,
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Definition(components[7]),
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desc2);
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res = bld.pseudo(aco_opcode::p_create_vector, bld.def(s8),
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components[0], components[1], components[2], components[3],
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components[4], components[5], components[6], components[7]);
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} else if (desc_type == ACO_DESC_IMAGE &&
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ctx->options->has_image_load_dcc_bug &&
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image && !write) {
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Temp components[8];
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for (unsigned i = 0; i < 8; i++)
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components[i] = bld.tmp(s1);
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bld.pseudo(aco_opcode::p_split_vector,
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Definition(components[0]), Definition(components[1]),
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Definition(components[2]), Definition(components[3]),
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Definition(components[4]), Definition(components[5]),
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Definition(components[6]), Definition(components[7]), res);
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/* WRITE_COMPRESS_ENABLE must be 0 for all image loads to workaround a
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* hardware bug.
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*/
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components[6] = bld.sop2(aco_opcode::s_and_b32, bld.def(s1), bld.def(s1, scc),
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components[6],
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bld.copy(bld.def(s1), Operand((uint32_t)C_00A018_WRITE_COMPRESS_ENABLE)));
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res = bld.pseudo(aco_opcode::p_create_vector, bld.def(s8),
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components[0], components[1], components[2], components[3],
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components[4], components[5], components[6], components[7]);
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@ -1416,6 +1416,7 @@ shader_variant_compile(struct radv_device *device,
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options->enable_mrt_output_nan_fixup = module && !module->nir &&
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device->instance->enable_mrt_output_nan_fixup;
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options->adjust_frag_coord_z = device->adjust_frag_coord_z;
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options->has_image_load_dcc_bug = device->physical_device->rad_info.has_image_load_dcc_bug;
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options->debug.func = radv_compiler_debug;
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options->debug.private_data = &debug_data;
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@ -132,6 +132,7 @@ struct radv_nir_compiler_options {
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bool record_stats;
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bool check_ir;
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bool has_ls_vgpr_init_bug;
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bool has_image_load_dcc_bug;
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bool use_ngg_streamout;
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bool enable_mrt_output_nan_fixup;
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bool disable_optimizations; /* only used by ACO */
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