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Diffstat (limited to 'src/gallium/drivers/freedreno/ir3/ir3_ra.c')
-rw-r--r--src/gallium/drivers/freedreno/ir3/ir3_ra.c153
1 files changed, 1 insertions, 152 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_ra.c b/src/gallium/drivers/freedreno/ir3/ir3_ra.c
index b0ce6c5..53b3274 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_ra.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_ra.c
@@ -56,9 +56,7 @@ struct ir3_ra_ctx {
bool half_precision;
bool frag_coord;
bool frag_face;
- bool has_samp;
int cnt;
- int max_bary;
bool error;
};
@@ -603,149 +601,6 @@ static void ir3_instr_ra(struct ir3_ra_ctx *ctx,
ra_assign(ctx, instr, num);
}
-/* flatten into shader: */
-// XXX this should probably be somewhere else:
-static void legalize(struct ir3_ra_ctx *ctx, struct ir3_block *block)
-{
- struct ir3_instruction *n;
- struct ir3 *shader = block->shader;
- struct ir3_instruction *end =
- ir3_instr_create(block, 0, OPC_END);
- struct ir3_instruction *last_input = NULL;
- struct ir3_instruction *last_rel = NULL;
- regmask_t needs_ss_war; /* write after read */
- regmask_t needs_ss;
- regmask_t needs_sy;
-
- regmask_init(&needs_ss_war);
- regmask_init(&needs_ss);
- regmask_init(&needs_sy);
-
- shader->instrs_count = 0;
-
- for (n = block->head; n; n = n->next) {
- struct ir3_register *reg;
- unsigned i;
-
- if (is_meta(n))
- continue;
-
- if (is_input(n)) {
- struct ir3_register *inloc = n->regs[1];
- assert(inloc->flags & IR3_REG_IMMED);
- ctx->max_bary = MAX2(ctx->max_bary, inloc->iim_val);
- }
-
- for (i = 1; i < n->regs_count; i++) {
- reg = n->regs[i];
-
- if (reg_gpr(reg)) {
-
- /* TODO: we probably only need (ss) for alu
- * instr consuming sfu result.. need to make
- * some tests for both this and (sy)..
- */
- if (regmask_get(&needs_ss, reg)) {
- n->flags |= IR3_INSTR_SS;
- regmask_init(&needs_ss);
- }
-
- if (regmask_get(&needs_sy, reg)) {
- n->flags |= IR3_INSTR_SY;
- regmask_init(&needs_sy);
- }
- }
-
- /* TODO: is it valid to have address reg loaded from a
- * relative src (ie. mova a0, c<a0.x+4>)? If so, the
- * last_rel check below should be moved ahead of this:
- */
- if (reg->flags & IR3_REG_RELATIV)
- last_rel = n;
- }
-
- if (n->regs_count > 0) {
- reg = n->regs[0];
- if (regmask_get(&needs_ss_war, reg)) {
- n->flags |= IR3_INSTR_SS;
- regmask_init(&needs_ss_war); // ??? I assume?
- }
-
- if (last_rel && (reg->num == regid(REG_A0, 0))) {
- last_rel->flags |= IR3_INSTR_UL;
- last_rel = NULL;
- }
- }
-
- /* cat5+ does not have an (ss) bit, if needed we need to
- * insert a nop to carry the sync flag. Would be kinda
- * clever if we were aware of this during scheduling, but
- * this should be a pretty rare case:
- */
- if ((n->flags & IR3_INSTR_SS) && (n->category >= 5)) {
- struct ir3_instruction *nop;
- nop = ir3_instr_create(block, 0, OPC_NOP);
- nop->flags |= IR3_INSTR_SS;
- n->flags &= ~IR3_INSTR_SS;
- }
-
- /* need to be able to set (ss) on first instruction: */
- if ((shader->instrs_count == 0) && (n->category >= 5))
- ir3_instr_create(block, 0, OPC_NOP);
-
- if (is_nop(n) && shader->instrs_count) {
- struct ir3_instruction *last =
- shader->instrs[shader->instrs_count-1];
- if (is_nop(last) && (last->repeat < 5)) {
- last->repeat++;
- last->flags |= n->flags;
- continue;
- }
- }
-
- shader->instrs[shader->instrs_count++] = n;
-
- if (is_sfu(n))
- regmask_set(&needs_ss, n->regs[0]);
-
- if (is_tex(n)) {
- /* this ends up being the # of samp instructions.. but that
- * is ok, everything else only cares whether it is zero or
- * not. We do this here, rather than when we encounter a
- * SAMP decl, because (especially in binning pass shader)
- * the samp instruction(s) could get eliminated if the
- * result is not used.
- */
- ctx->has_samp = true;
- regmask_set(&needs_sy, n->regs[0]);
- }
-
- /* both tex/sfu appear to not always immediately consume
- * their src register(s):
- */
- if (is_tex(n) || is_sfu(n)) {
- for (i = 1; i < n->regs_count; i++) {
- reg = n->regs[i];
- if (reg_gpr(reg))
- regmask_set(&needs_ss_war, reg);
- }
- }
-
- if (is_input(n))
- last_input = n;
- }
-
- if (last_input)
- last_input->regs[0]->flags |= IR3_REG_EI;
-
- if (last_rel)
- last_rel->flags |= IR3_INSTR_UL;
-
- shader->instrs[shader->instrs_count++] = end;
-
- shader->instrs[0]->flags |= IR3_INSTR_SS | IR3_INSTR_SY;
-}
-
static int block_ra(struct ir3_ra_ctx *ctx, struct ir3_block *block)
{
struct ir3_instruction *n;
@@ -794,14 +649,11 @@ static int block_ra(struct ir3_ra_ctx *ctx, struct ir3_block *block)
ra_dump_list("-------", block->head);
}
- legalize(ctx, block);
-
return 0;
}
int ir3_block_ra(struct ir3_block *block, enum shader_t type,
- bool half_precision, bool frag_coord, bool frag_face,
- bool *has_samp, int *max_bary)
+ bool half_precision, bool frag_coord, bool frag_face)
{
struct ir3_instruction *n;
struct ir3_ra_ctx ctx = {
@@ -810,7 +662,6 @@ int ir3_block_ra(struct ir3_block *block, enum shader_t type,
.half_precision = half_precision,
.frag_coord = frag_coord,
.frag_face = frag_face,
- .max_bary = -1,
};
int ret;
@@ -823,8 +674,6 @@ int ir3_block_ra(struct ir3_block *block, enum shader_t type,
ir3_clear_mark(block->shader);
ret = block_ra(&ctx, block);
- *has_samp = ctx.has_samp;
- *max_bary = ctx.max_bary;
return ret;
}