i965: Replace reg_type_size[] with a function.
A function is necessary to handle immediate types. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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ada891d472
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df0b7bcdfd
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@ -257,20 +257,6 @@ static const char *const three_source_reg_encoding[] = {
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[BRW_3SRC_TYPE_DF] = "DF",
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};
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const int reg_type_size[] = {
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[BRW_HW_REG_TYPE_UD] = 4,
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[BRW_HW_REG_TYPE_D] = 4,
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[BRW_HW_REG_TYPE_UW] = 2,
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[BRW_HW_REG_TYPE_W] = 2,
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[BRW_HW_REG_NON_IMM_TYPE_UB] = 1,
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[BRW_HW_REG_NON_IMM_TYPE_B] = 1,
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[GEN7_HW_REG_NON_IMM_TYPE_DF] = 8,
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[BRW_HW_REG_TYPE_F] = 4,
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[GEN8_HW_REG_TYPE_UQ] = 8,
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[GEN8_HW_REG_TYPE_Q] = 8,
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[GEN8_HW_REG_NON_IMM_TYPE_HF] = 2,
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};
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static const char *const reg_file[4] = {
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[0] = "A",
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[1] = "g",
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@ -734,6 +720,7 @@ reg(FILE *file, unsigned _reg_file, unsigned _reg_nr)
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static int
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dest(FILE *file, const struct gen_device_info *devinfo, brw_inst *inst)
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{
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unsigned elem_size = brw_element_size(devinfo, inst, dst);
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int err = 0;
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if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
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@ -744,7 +731,7 @@ dest(FILE *file, const struct gen_device_info *devinfo, brw_inst *inst)
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return 0;
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if (brw_inst_dst_da1_subreg_nr(devinfo, inst))
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format(file, ".%"PRIu64, brw_inst_dst_da1_subreg_nr(devinfo, inst) /
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reg_type_size[brw_inst_dst_reg_type(devinfo, inst)]);
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elem_size);
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string(file, "<");
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err |= control(file, "horiz stride", horiz_stride,
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brw_inst_dst_hstride(devinfo, inst), NULL);
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@ -755,7 +742,7 @@ dest(FILE *file, const struct gen_device_info *devinfo, brw_inst *inst)
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string(file, "g[a0");
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if (brw_inst_dst_ia_subreg_nr(devinfo, inst))
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format(file, ".%"PRIu64, brw_inst_dst_ia_subreg_nr(devinfo, inst) /
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reg_type_size[brw_inst_dst_reg_type(devinfo, inst)]);
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elem_size);
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if (brw_inst_dst_ia1_addr_imm(devinfo, inst))
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format(file, " %d", brw_inst_dst_ia1_addr_imm(devinfo, inst));
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string(file, "]<");
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@ -772,8 +759,7 @@ dest(FILE *file, const struct gen_device_info *devinfo, brw_inst *inst)
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if (err == -1)
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return 0;
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if (brw_inst_dst_da16_subreg_nr(devinfo, inst))
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format(file, ".%u", 16 /
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reg_type_size[brw_inst_dst_reg_type(devinfo, inst)]);
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format(file, ".%u", 16 / elem_size);
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string(file, "<1>");
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err |= control(file, "writemask", writemask,
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brw_inst_da16_writemask(devinfo, inst), NULL);
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@ -850,8 +836,10 @@ src_da1(FILE *file,
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err |= reg(file, _reg_file, reg_num);
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if (err == -1)
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return 0;
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if (sub_reg_num)
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format(file, ".%d", sub_reg_num / reg_type_size[type]); /* use formal style like spec */
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if (sub_reg_num) {
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unsigned elem_size = brw_hw_reg_type_to_size(devinfo, type, _reg_file);
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format(file, ".%d", sub_reg_num / elem_size); /* use formal style like spec */
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}
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src_align1_region(file, _vert_stride, _width, _horiz_stride);
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err |= control(file, "src reg encoding", reg_encoding, type, NULL);
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return err;
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@ -936,10 +924,14 @@ src_da16(FILE *file,
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err |= reg(file, _reg_file, _reg_nr);
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if (err == -1)
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return 0;
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if (_subreg_nr)
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if (_subreg_nr) {
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unsigned elem_size =
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brw_hw_reg_type_to_size(devinfo, _reg_type, _reg_file);
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/* bit4 for subreg number byte addressing. Make this same meaning as
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in da1 case, so output looks consistent. */
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format(file, ".%d", 16 / reg_type_size[_reg_type]);
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format(file, ".%d", 16 / elem_size);
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}
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string(file, "<");
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err |= control(file, "vert stride", vert_stride, _vert_stride, NULL);
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string(file, ">");
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@ -141,6 +141,57 @@ brw_reg_type_to_hw_type(const struct gen_device_info *devinfo,
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}
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}
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/**
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* Return the element size given a hardware register type and file.
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*
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* The hardware encoding may depend on whether the value is an immediate.
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*/
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unsigned
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brw_hw_reg_type_to_size(const struct gen_device_info *devinfo,
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unsigned type, enum brw_reg_file file)
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{
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if (file == BRW_IMMEDIATE_VALUE) {
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static const unsigned imm_hw_sizes[] = {
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[BRW_HW_REG_TYPE_UD] = 4,
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[BRW_HW_REG_TYPE_D] = 4,
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[BRW_HW_REG_TYPE_UW] = 2,
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[BRW_HW_REG_TYPE_W] = 2,
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[BRW_HW_REG_IMM_TYPE_UV] = 2,
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[BRW_HW_REG_IMM_TYPE_VF] = 4,
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[BRW_HW_REG_IMM_TYPE_V] = 2,
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[BRW_HW_REG_TYPE_F] = 4,
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[GEN8_HW_REG_TYPE_UQ] = 8,
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[GEN8_HW_REG_TYPE_Q] = 8,
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[GEN8_HW_REG_IMM_TYPE_DF] = 8,
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[GEN8_HW_REG_IMM_TYPE_HF] = 2,
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};
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assert(type < ARRAY_SIZE(imm_hw_sizes));
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assert(devinfo->gen >= 6 || type != BRW_HW_REG_IMM_TYPE_UV);
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assert(devinfo->gen >= 8 || type <= BRW_HW_REG_TYPE_F);
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return imm_hw_sizes[type];
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} else {
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/* Non-immediate registers */
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static const unsigned hw_sizes[] = {
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[BRW_HW_REG_TYPE_UD] = 4,
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[BRW_HW_REG_TYPE_D] = 4,
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[BRW_HW_REG_TYPE_UW] = 2,
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[BRW_HW_REG_TYPE_W] = 2,
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[BRW_HW_REG_NON_IMM_TYPE_UB] = 1,
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[BRW_HW_REG_NON_IMM_TYPE_B] = 1,
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[GEN7_HW_REG_NON_IMM_TYPE_DF] = 8,
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[BRW_HW_REG_TYPE_F] = 4,
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[GEN8_HW_REG_TYPE_UQ] = 8,
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[GEN8_HW_REG_TYPE_Q] = 8,
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[GEN8_HW_REG_NON_IMM_TYPE_HF] = 2,
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};
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assert(type < ARRAY_SIZE(hw_sizes));
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assert(devinfo->gen >= 7 ||
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(type < GEN7_HW_REG_NON_IMM_TYPE_DF || type == BRW_HW_REG_TYPE_F));
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assert(devinfo->gen >= 8 || type <= BRW_HW_REG_TYPE_F);
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return hw_sizes[type];
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}
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}
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void
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brw_set_dest(struct brw_codegen *p, brw_inst *inst, struct brw_reg dest)
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{
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@ -219,8 +270,6 @@ brw_set_dest(struct brw_codegen *p, brw_inst *inst, struct brw_reg dest)
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brw_inst_set_exec_size(devinfo, inst, dest.width);
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}
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extern int reg_type_size[];
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static void
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validate_reg(const struct gen_device_info *devinfo,
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brw_inst *inst, struct brw_reg reg)
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@ -237,8 +286,9 @@ validate_reg(const struct gen_device_info *devinfo,
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* destination horiz stride has to be a word.
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*/
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if (reg.type == BRW_REGISTER_TYPE_V) {
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unsigned elem_size = brw_element_size(devinfo, inst, dst);
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assert(hstride_for_reg[brw_inst_dst_hstride(devinfo, inst)] *
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reg_type_size[brw_inst_dst_reg_type(devinfo, inst)] == 2);
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elem_size == 2);
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}
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return;
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@ -230,6 +230,14 @@ enum PACKED brw_reg_type {
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unsigned brw_reg_type_to_hw_type(const struct gen_device_info *devinfo,
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enum brw_reg_type type, enum brw_reg_file file);
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#define brw_element_size(devinfo, inst, operand) \
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brw_hw_reg_type_to_size(devinfo, \
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brw_inst_ ## operand ## _reg_type(devinfo, inst), \
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brw_inst_ ## operand ## _reg_file(devinfo, inst))
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unsigned brw_hw_reg_type_to_size(const struct gen_device_info *devinfo,
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unsigned type, enum brw_reg_file file);
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const char *brw_reg_type_letters(unsigned brw_reg_type);
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uint32_t brw_swizzle_immediate(enum brw_reg_type type, uint32_t x, unsigned swz);
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