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r600/sb: add initial support for parsing lds operations.

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This handles parsing the LDS ops and queue accessess.

Acked-By: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2018-01-10 04:20:52 +00:00
parent 795512b235
commit 9f3a1e9b0c
1 changed files with 50 additions and 2 deletions
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52
src/gallium/drivers/r600/sb/sb_bc_parser.cpp
View file

@ -384,7 +384,40 @@ int bc_parser::prepare_alu_group(cf_node* cf, alu_group_node *g) {
unsigned flags = n->bc.op_ptr->flags;
if (flags & AF_PRED) {
if (flags & AF_LDS) {
bool need_rw = false, need_oqa = false, need_oqb = false;
int ndst = 0, ncount = 0;
/* all non-read operations have side effects */
if (n->bc.op != LDS_OP2_LDS_READ2_RET &&
n->bc.op != LDS_OP1_LDS_READ_REL_RET &&
n->bc.op != LDS_OP1_LDS_READ_RET) {
n->flags |= NF_DONT_KILL;
ndst++;
need_rw = true;
}
if (n->bc.op >= LDS_OP2_LDS_ADD_RET && n->bc.op <= LDS_OP1_LDS_USHORT_READ_RET) {
need_oqa = true;
ndst++;
}
if (n->bc.op == LDS_OP2_LDS_READ2_RET || n->bc.op == LDS_OP1_LDS_READ_REL_RET) {
need_oqb = true;
ndst++;
}
n->dst.resize(ndst);
if (need_oqa)
n->dst[ncount++] = sh->get_special_value(SV_LDS_OQA);
if (need_oqb)
n->dst[ncount++] = sh->get_special_value(SV_LDS_OQB);
if (need_rw)
n->dst[ncount++] = sh->get_special_value(SV_LDS_RW);
n->flags |= NF_DONT_MOVE | NF_DONT_HOIST;
} else if (flags & AF_PRED) {
n->dst.resize(3);
if (n->bc.update_pred)
n->dst[1] = sh->get_special_value(SV_ALU_PRED);
@ -417,7 +450,7 @@ int bc_parser::prepare_alu_group(cf_node* cf, alu_group_node *g) {
n->flags |= NF_DONT_HOIST;
} else if (n->bc.op_ptr->src_count == 3 || n->bc.write_mask) {
} else if ((n->bc.op_ptr->src_count == 3 || n->bc.write_mask) && !(flags & AF_LDS)) {
assert(!n->bc.dst_rel || n->bc.index_mode == INDEX_AR_X);
value *v = sh->get_gpr_value(false, n->bc.dst_gpr, n->bc.dst_chan,
@ -487,6 +520,21 @@ int bc_parser::prepare_alu_group(cf_node* cf, alu_group_node *g) {
// param index as equal instructions and leave only one of them
n->src[s] = sh->get_special_ro_value(sel_chan(src.sel,
n->bc.slot));
} else if (ctx.is_lds_oq(src.sel)) {
switch (src.sel) {
case ALU_SRC_LDS_OQ_A:
case ALU_SRC_LDS_OQ_B:
assert(!"Unsupported LDS queue access in SB");
break;
case ALU_SRC_LDS_OQ_A_POP:
n->src[s] = sh->get_special_value(SV_LDS_OQA);
break;
case ALU_SRC_LDS_OQ_B_POP:
n->src[s] = sh->get_special_value(SV_LDS_OQB);
break;
}
n->flags |= NF_DONT_HOIST | NF_DONT_MOVE;
} else {
switch (src.sel) {
case ALU_SRC_0: