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pan/bi: Pack FMA_MSCALE

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Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4615>
This commit is contained in:
Alyssa Rosenzweig 2020-04-14 16:44:44 -04:00
parent 0cb703984e
commit c3eebfeb11
1 changed files with 23 additions and 1 deletions
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24
src/panfrost/bifrost/bi_pack.c
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@ -490,7 +490,29 @@ bi_pack_fma_fma(bi_instruction *ins, struct bi_registers *regs)
/* (-a)(-b) = ab, so we only need one negate bit */
bool negate_mul = ins->src_neg[0] ^ ins->src_neg[1];
if (ins->dest_type == nir_type_float32) {
if (ins->op.mscale) {
assert(!(ins->src_abs[0] && ins->src_abs[1]));
assert(!ins->src_abs[2] || !ins->src_neg[3] || !ins->src_abs[3]);
/* We can have exactly one abs, and can flip the multiplication
* to make it fit if we have to */
bool flip_ab = ins->src_abs[1];
struct bifrost_fma_mscale pack = {
.src0 = bi_get_src(ins, regs, flip_ab ? 1 : 0, true),
.src1 = bi_get_src(ins, regs, flip_ab ? 0 : 1, true),
.src2 = bi_get_src(ins, regs, 2, true),
.src3 = bi_get_src(ins, regs, 3, true),
.mscale_mode = 0,
.mode = ins->outmod,
.src0_abs = ins->src_abs[0] || ins->src_abs[1],
.src1_neg = negate_mul,
.src2_neg = ins->src_neg[2],
.op = BIFROST_FMA_OP_MSCALE,
};
RETURN_PACKED(pack);
} else if (ins->dest_type == nir_type_float32) {
struct bifrost_fma_fma pack = {
.src0 = bi_get_src(ins, regs, 0, true),
.src1 = bi_get_src(ins, regs, 1, true),