pan/bi: Add log2_help packing

Signed-off-by: Alyssa Rosenzweig <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4615>

2 files changed, 12 insertions, 0 deletions

diff --git a/src/panfrost/bifrost/bi_pack.c b/src/panfrost/bifrost/bi_pack.c
index db753f16671..1b968942cd1 100644
--- a/src/panfrost/bifrost/bi_pack.c
+++ b/src/panfrost/bifrost/bi_pack.c
@@ -1130,6 +1130,16 @@ bi_pack_add_special(bi_instruction *ins, struct bi_registers *regs)
 }
 
 static unsigned
+bi_pack_add_table(bi_instruction *ins, struct bi_registers *regs)
+{
+        unsigned op = 0;
+        assert(ins->dest_type == nir_type_float32);
+
+        op = BIFROST_ADD_OP_LOG2_HELP;
+        return bi_pack_add_1src(ins, regs, op);
+}
+
+static unsigned
 bi_pack_add(bi_clause *clause, bi_bundle bundle, struct bi_registers *regs)
 {
         if (!bundle.add)
@@ -1173,6 +1183,7 @@ bi_pack_add(bi_clause *clause, bi_bundle bundle, struct bi_registers *regs)
         case BI_SPECIAL:
                 return bi_pack_add_special(bundle.add, regs);
         case BI_TABLE:
+                return bi_pack_add_table(bundle.add, regs);
         case BI_SWIZZLE:
         case BI_TEX:
         case BI_ROUND:
diff --git a/src/panfrost/bifrost/bifrost.h b/src/panfrost/bifrost/bifrost.h
index 3b08eac6df6..7cdc39b7771 100644
--- a/src/panfrost/bifrost/bifrost.h
+++ b/src/panfrost/bifrost/bifrost.h
@@ -118,6 +118,7 @@ struct bifrost_fma_2src {
 #define BIFROST_ADD_OP_FRSQ_FAST_F32 (0x0cc20)
 #define BIFROST_ADD_OP_FRSQ_FAST_F16_X (0x0ce50)
 #define BIFROST_ADD_OP_FRSQ_FAST_F16_Y (0x0ce70)
+#define BIFROST_ADD_OP_LOG2_HELP  (0x0cc68)
 
 struct bifrost_add_inst {
         unsigned src0 : 3;