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pan/bi: Match CSEL argument order with hw

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It turns out ports need to be in order of the arguments of an
instruction (port 3, that is), which breaks on instructions whose IR
argument order is different from the packed order, like csel. So fix
that.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4458>
This commit is contained in:
Alyssa Rosenzweig 2020-04-05 19:22:01 -04:00 • committed by Marge Bot
parent 9114ebbe79
commit 8eefb2765a
2 changed files with 15 additions and 9 deletions
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8
src/panfrost/bifrost/bi_pack.c
View file

@ -691,10 +691,10 @@ bi_pack_fma_csel(bi_instruction *ins, struct bi_registers *regs)
unsigned size = nir_alu_type_get_type_size(ins->dest_type);
unsigned cmp_0 = (flip ? 3 : 0);
unsigned cmp_1 = (flip ? 0 : 3);
unsigned res_0 = (invert ? 2 : 1);
unsigned res_1 = (invert ? 1 : 2);
unsigned cmp_0 = (flip ? 1 : 0);
unsigned cmp_1 = (flip ? 0 : 1);
unsigned res_0 = (invert ? 3 : 2);
unsigned res_1 = (invert ? 2 : 3);
struct bifrost_csel4 pack = {
.src0 = bi_get_src(ins, regs, cmp_0, true),

16
src/panfrost/bifrost/bifrost_compile.c
View file

@ -520,7 +520,7 @@ bi_fuse_csel_cond(bi_instruction *csel, nir_alu_src cond,
/* We found one, let's fuse it in */
csel->csel_cond = bcond;
bi_copy_src(csel, alu, 0, 0, constants_left, constant_shift);
bi_copy_src(csel, alu, 1, 3, constants_left, constant_shift);
bi_copy_src(csel, alu, 1, 1, constants_left, constant_shift);
}
static void
@ -571,8 +571,14 @@ emit_alu(bi_context *ctx, nir_alu_instr *instr)
unsigned num_inputs = nir_op_infos[instr->op].num_inputs;
assert(num_inputs <= ARRAY_SIZE(alu.src));
for (unsigned i = 0; i < num_inputs; ++i)
bi_copy_src(&alu, instr, i, i, &constants_left, &constant_shift);
for (unsigned i = 0; i < num_inputs; ++i) {
unsigned f = 0;
if (i && alu.type == BI_CSEL)
f++;
bi_copy_src(&alu, instr, i, i + f, &constants_left, &constant_shift);
}
/* Op-specific fixup */
switch (instr->op) {
@ -642,8 +648,8 @@ emit_alu(bi_context *ctx, nir_alu_instr *instr)
if (alu.type == BI_CSEL) {
/* Default to csel3 */
alu.csel_cond = BI_COND_NE;
alu.src[3] = BIR_INDEX_ZERO;
alu.src_types[3] = alu.src_types[0];
alu.src[1] = BIR_INDEX_ZERO;
alu.src_types[1] = alu.src_types[0];
bi_fuse_csel_cond(&alu, instr->src[0],
&constants_left, &constant_shift);