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Diffstat (limited to 'src/sna/brw/brw_eu.c')
| -rw-r--r-- | src/sna/brw/brw_eu.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/sna/brw/brw_eu.c b/src/sna/brw/brw_eu.c new file mode 100644 index 00000000..7c32ea19 --- /dev/null +++ b/src/sna/brw/brw_eu.c @@ -0,0 +1,150 @@ +/* + Copyright (C) Intel Corp. 2006. All Rights Reserved. + Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to + develop this 3D driver. + + 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 COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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. + + **********************************************************************/ + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "brw_eu.h" + +#include <string.h> +#include <stdlib.h> + +/* Returns the corresponding conditional mod for swapping src0 and + * src1 in e.g. CMP. + */ +uint32_t +brw_swap_cmod(uint32_t cmod) +{ + switch (cmod) { + case BRW_CONDITIONAL_Z: + case BRW_CONDITIONAL_NZ: + return cmod; + case BRW_CONDITIONAL_G: + return BRW_CONDITIONAL_LE; + case BRW_CONDITIONAL_GE: + return BRW_CONDITIONAL_L; + case BRW_CONDITIONAL_L: + return BRW_CONDITIONAL_GE; + case BRW_CONDITIONAL_LE: + return BRW_CONDITIONAL_G; + default: + return ~0; + } +} + +/* How does predicate control work when execution_size != 8? Do I + * need to test/set for 0xffff when execution_size is 16? + */ +void brw_set_predicate_control_flag_value( struct brw_compile *p, unsigned value ) +{ + p->current->header.predicate_control = BRW_PREDICATE_NONE; + + if (value != 0xff) { + if (value != p->flag_value) { + brw_MOV(p, brw_flag_reg(), brw_imm_uw(value)); + p->flag_value = value; + } + + p->current->header.predicate_control = BRW_PREDICATE_NORMAL; + } +} + +void brw_set_compression_control(struct brw_compile *p, + enum brw_compression compression_control) +{ + p->compressed = (compression_control == BRW_COMPRESSION_COMPRESSED); + + if (p->gen >= 60) { + /* Since we don't use the 32-wide support in gen6, we translate + * the pre-gen6 compression control here. + */ + switch (compression_control) { + case BRW_COMPRESSION_NONE: + /* This is the "use the first set of bits of dmask/vmask/arf + * according to execsize" option. + */ + p->current->header.compression_control = GEN6_COMPRESSION_1Q; + break; + case BRW_COMPRESSION_2NDHALF: + /* For 8-wide, this is "use the second set of 8 bits." */ + p->current->header.compression_control = GEN6_COMPRESSION_2Q; + break; + case BRW_COMPRESSION_COMPRESSED: + /* For 16-wide instruction compression, use the first set of 16 bits + * since we don't do 32-wide dispatch. + */ + p->current->header.compression_control = GEN6_COMPRESSION_1H; + break; + default: + assert(!"not reached"); + p->current->header.compression_control = GEN6_COMPRESSION_1H; + break; + } + } else { + p->current->header.compression_control = compression_control; + } +} + +void brw_push_insn_state( struct brw_compile *p ) +{ + assert(p->current != &p->stack[BRW_EU_MAX_INSN_STACK-1]); + memcpy(p->current+1, p->current, sizeof(struct brw_instruction)); + p->compressed_stack[p->current - p->stack] = p->compressed; + p->current++; +} + +void brw_pop_insn_state( struct brw_compile *p ) +{ + assert(p->current != p->stack); + p->current--; + p->compressed = p->compressed_stack[p->current - p->stack]; +} + +void brw_compile_init(struct brw_compile *p, int gen, void *store) +{ + assert(gen); + + p->gen = gen; + p->store = store; + + p->nr_insn = 0; + p->current = p->stack; + p->compressed = false; + memset(p->current, 0, sizeof(p->current[0])); + + /* Some defaults? + */ + brw_set_mask_control(p, BRW_MASK_ENABLE); /* what does this do? */ + brw_set_saturate(p, 0); + brw_set_compression_control(p, BRW_COMPRESSION_NONE); + brw_set_predicate_control_flag_value(p, 0xff); + + p->if_stack_depth = 0; + p->if_stack_array_size = 0; + p->if_stack = NULL; +} |