From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Sat, 28 Mar 2020 00:08:03 +0000 (-0400)
Subject: pan/bi: Add one-source f32->f16 op
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2fd8b2e6d4ca6fd9276baf4002228de99350e8c5;p=mesa.git

pan/bi: Add one-source f32->f16 op

This really has a second op for vectorization but we don't handle this
quite yet...

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4382>
---

diff --git a/src/panfrost/bifrost/bi_pack.c b/src/panfrost/bifrost/bi_pack.c
index cac1ef5f31f..c53b40fe2b4 100644
--- a/src/panfrost/bifrost/bi_pack.c
+++ b/src/panfrost/bifrost/bi_pack.c
@@ -642,7 +642,14 @@ bi_pack_fma_convert(bi_instruction *ins, struct bi_registers *regs)
                 }
         } else if (from_size == 32 && to_size == 16) {
                 if (from_base == nir_type_float) {
-                        /* float32_to_float16 */
+                        /* TODO: second vectorized source? */
+                        struct bifrost_fma_2src pack = {
+                                .src0 = bi_get_src(ins, regs, 0, true),
+                                .src1 = BIFROST_SRC_STAGE, /* 0 */
+                                .op = BIFROST_FMA_FLOAT32_TO_16
+                        };
+
+                        RETURN_PACKED(pack);
                 } else {
                         /* XXX: No int32_to_int16? */
                 }