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6648e0ebd3
Either replace the BRW prefix with ELK or add an extra ELK prefix. Used
the following sed script to perform the renames in this patch:
```
# Simple prefix changes.
s/\<BRW_/ELK_/g
s/\<brw_/elk_/g
s/nir_to_brw/nir_to_elk/g
s/\<as_brw_reg\>/as_elk_reg/g
s/\<_brw_/_elk_/g
# Add prefix to various symbols.
#
# Initially I've considered using C++ namespaces here, but in various
# cases the structs or functions had to be also visible from C code.
# So added explicit prefix instead.
s/\<backend_instruction/elk_\0/g
s/\<backend_reg/elk_\0/g
s/\<backend_shader/elk_\0/g
s/\<bblock_t\>/elk_\0/g
s/\<bblock_link\>/elk_\0/g
s/\<cfg_t\>/elk_\0/g
s/\<fs_visitor\>/elk_\0/g
s/\<fs_reg\>/elk_\0/g
s/\<fs_instruction_scheduler\>/elk_\0/g
s/\<vec4_instruction_scheduler\>/elk_\0/g
s/\<instruction_scheduler\>/elk_\0/g
s/\<schedule_node\>/elk_\0/g
s/\<schedule_node_child\>/elk_\0/g
s/\<\([a-z]*_\)\?thread_payload\>/elk_\1thread_payload/g
s/\<fs_generator\>/elk_\0/g
s/\<fs_inst\>/elk_\0/g
s/\<fs_reg_alloc\>/elk_\0/g
s/\<disasm_info\>/elk_\0/g
s/\<gfx._math\>/elk_\0/g
s/\<gfx7_block_read_scratch\>/elk_\0/g
s/\<gfx6_IF\>/elk_\0/g
s/\<gfx9_fb_READ\>/elk_\0/g
s/\<gfx6_resolve_implied_move\>/elk_\0/g
# Opcodes.
s/\<opcode op\>/elk_\0/g
s/\<opcode mov_op\>/elk_\0/g
s/\<opcode opcode\>/elk_\0/g
s/enum opcode\>/enum elk_opcode/g
s/static opcode\>/static elk_opcode/g
s/\<opcode elk_op/elk_opcode elk_op/g
s/struct opcode_desc/struct elk_opcode_desc/g
s/NUM_BRW_OPCODES/NUM_ELK_OPCODES/g
s/\<.._OPCODE_/ELK_\0/g
s/\<T.._OPCODE_/ELK_\0/g
s/\<VEC4_OPCODE_/ELK_\0/g
s/\<VEC4_...\?_OPCODE_/ELK_\0/g
s/\<SHADER_OPCODE_/ELK_\0/g
# Remaining specific cases.
s/\<wm_prog_data_barycentric_modes\>/elk_\0/g
s/\<encode_slm_size\>/elk_\0/g
s/\<intel_calculate_slm_size\>/elk_\0/g
s/\<gfx6_gather_sampler_wa\>/elk_\0/g
s/\<is_3src\>/elk_\0/g
s/\<WA_/ELK_\0/g
s/\<conditional_modifier\>/elk_\0/g
s/\<pred_ctrl_align16\>/elk_\0/g
s/\<shuffle_from_32bit_read\>/elk_\0/g
s/\<shuffle_src_to_dst\>/elk_\0/g
s/\<setup_imm_..\?\>/elk_\0/g
s/\<opt_predicated_break\>/elk_\0/g
s/\<has_bank_conflict\>/elk_\0/g
s/\<dead_control_flow_eliminate\>/elk_\0/g
s/\<disasm_new_inst_group\>/elk_\0/g
s/\<disasm_initialize\>/elk_\0/g
s/\<dump_assembly\>/elk_\0/g
s/\<disasm_insert_error\>/elk_\0/g
s/\<disasm_annotate\>/elk_\0/g
s/\<enum lsc_opcode\>/enum elk_lsc_opcode/g
s/\<lsc_opcode_/elk_lsc_opcode_/g
s/\<lsc_aop_[a-z_]\+\>/elk_\0/g
s/\<type_size_vec4\>/elk_\0/g
s/\<type_size_dvec4\>/elk_\0/g
s/\<type_size_xvec4\>/elk_\0/g
s/\<type_size_[a-z4]\+_bytes\>/elk_\0/g
s/\<gfx12_systolic_depth\>/elk_\0/g
```
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27563>
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "elk_reg.h"
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union fu {
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float f;
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unsigned u;
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struct {
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unsigned mantissa:23;
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unsigned exponent:8;
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unsigned sign:1;
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} s;
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};
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int
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elk_float_to_vf(float f)
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{
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union fu fu = { .f = f };
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/* ±0.0f is special cased. */
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if (f == 0.0f)
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return fu.s.sign << 7;
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unsigned mantissa = fu.s.mantissa >> (23 - 4);
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unsigned exponent = fu.s.exponent - (127 - 3);
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unsigned vf = (fu.s.sign << 7) | (exponent << 4) | mantissa;
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/* 0.125 would have had the same representation as 0.0, so reject it. */
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if ((vf & 0x7f) == 0)
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return -1;
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/* Make sure the mantissa fits in 4-bits and the exponent in 3-bits. */
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if (fu.u & 0x7ffff || exponent > 7)
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return -1;
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return vf;
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}
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float
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elk_vf_to_float(unsigned char vf)
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{
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union fu fu;
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/* ±0.0f is special cased. */
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if (vf == 0x00 || vf == 0x80) {
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fu.u = (unsigned)vf << 24;
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return fu.f;
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}
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fu.s.sign = vf >> 7;
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fu.s.exponent = ((vf & 0x70) >> 4) + (127 - 3);
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fu.s.mantissa = (vf & 0xf) << (23 - 4);
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return fu.f;
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}
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