--- /dev/null
+/*
+ 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 <string.h>
+
+#include "gen4asm.h"
+#include "brw_context.h"
+#include "brw_defines.h"
+#include "brw_eu.h"
+
+#include "ralloc.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_L;
+ case BRW_CONDITIONAL_GE:
+ return BRW_CONDITIONAL_LE;
+ case BRW_CONDITIONAL_L:
+ return BRW_CONDITIONAL_G;
+ case BRW_CONDITIONAL_LE:
+ return BRW_CONDITIONAL_GE;
+ 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, GLuint value )
+{
+ p->current->header.predicate_control = BRW_PREDICATE_NONE;
+
+ if (value != 0xff) {
+ if (value != p->flag_value) {
+ brw_push_insn_state(p);
+ brw_MOV(p, brw_flag_reg(0, 0), brw_imm_uw(value));
+ p->flag_value = value;
+ brw_pop_insn_state(p);
+ }
+
+ p->current->header.predicate_control = BRW_PREDICATE_NORMAL;
+ }
+}
+
+void brw_set_predicate_control( struct brw_compile *p, GLuint pc )
+{
+ p->current->header.predicate_control = pc;
+}
+
+void brw_set_predicate_inverse(struct brw_compile *p, bool predicate_inverse)
+{
+ p->current->header.predicate_inverse = predicate_inverse;
+}
+
+void brw_set_conditionalmod( struct brw_compile *p, GLuint conditional )
+{
+ p->current->header.destreg__conditionalmod = conditional;
+}
+
+void brw_set_flag_reg(struct brw_compile *p, int reg, int subreg)
+{
+ p->current->bits2.da1.flag_reg_nr = reg;
+ p->current->bits2.da1.flag_subreg_nr = subreg;
+}
+
+void brw_set_access_mode( struct brw_compile *p, GLuint access_mode )
+{
+ p->current->header.access_mode = access_mode;
+}
+
+void
+brw_set_compression_control(struct brw_compile *p,
+ enum brw_compression compression_control)
+{
+ p->compressed = (compression_control == BRW_COMPRESSION_COMPRESSED);
+
+ if (p->brw->intel.gen >= 6) {
+ /* 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_set_mask_control( struct brw_compile *p, GLuint value )
+{
+ p->current->header.mask_control = value;
+}
+
+void brw_set_saturate( struct brw_compile *p, bool enable )
+{
+ p->current->header.saturate = enable;
+}
+
+void brw_set_acc_write_control(struct brw_compile *p, GLuint value)
+{
+ if (p->brw->intel.gen >= 6)
+ p->current->header.acc_wr_control = value;
+}
+
+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_init_compile(struct brw_context *brw, struct brw_compile *p, void *mem_ctx)
+{
+ memset(p, 0, sizeof(*p));
+
+ p->brw = brw;
+ /*
+ * Set the initial instruction store array size to 1024, if found that
+ * isn't enough, then it will double the store size at brw_next_insn()
+ * until out of memory.
+ */
+ p->store_size = 1024;
+ p->store = rzalloc_array(mem_ctx, struct brw_instruction, p->store_size);
+ p->nr_insn = 0;
+ p->current = p->stack;
+ p->compressed = false;
+ memset(p->current, 0, sizeof(p->current[0]));
+
+ p->mem_ctx = mem_ctx;
+
+ /* 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);
+
+ /* Set up control flow stack */
+ p->if_stack_depth = 0;
+ p->if_stack_array_size = 16;
+ p->if_stack = rzalloc_array(mem_ctx, int, p->if_stack_array_size);
+
+ p->loop_stack_depth = 0;
+ p->loop_stack_array_size = 16;
+ p->loop_stack = rzalloc_array(mem_ctx, int, p->loop_stack_array_size);
+ p->if_depth_in_loop = rzalloc_array(mem_ctx, int, p->loop_stack_array_size);
+
+ brw_init_compaction_tables(&brw->intel);
+}
+
+
+const GLuint *brw_get_program( struct brw_compile *p,
+ GLuint *sz )
+{
+ brw_compact_instructions(p);
+
+ *sz = p->next_insn_offset;
+ return (const GLuint *)p->store;
+}
+
+void
+brw_dump_compile(struct brw_compile *p, FILE *out, int start, int end)
+{
+ struct brw_context *brw = p->brw;
+ struct intel_context *intel = &brw->intel;
+ void *store = p->store;
+ bool dump_hex = false;
+
+ for (int offset = start; offset < end;) {
+ struct brw_instruction *insn = store + offset;
+ struct brw_instruction uncompacted;
+ printf("0x%08x: ", offset);
+
+ if (insn->header.cmpt_control) {
+ struct brw_compact_instruction *compacted = (void *)insn;
+ if (dump_hex) {
+ printf("0x%08x 0x%08x ",
+ ((uint32_t *)insn)[1],
+ ((uint32_t *)insn)[0]);
+ }
+
+ brw_uncompact_instruction(intel, &uncompacted, compacted);
+ insn = &uncompacted;
+ offset += 8;
+ } else {
+ if (dump_hex) {
+ printf("0x%08x 0x%08x 0x%08x 0x%08x ",
+ ((uint32_t *)insn)[3],
+ ((uint32_t *)insn)[2],
+ ((uint32_t *)insn)[1],
+ ((uint32_t *)insn)[0]);
+ }
+ offset += 16;
+ }
+
+ brw_disasm(stdout, insn, p->brw->intel.gen);
+ }
+}
projects / profile / extras / intel-gpu-tools.git / commitdiff