diff options
Diffstat (limited to 'src/panfrost')
| -rw-r--r-- | src/panfrost/midgard/midgard_compile.c | 21 | ||||
| -rw-r--r-- | src/panfrost/midgard/midgard_nir_algebraic.py | 6 |
2 files changed, 21 insertions, 6 deletions
diff --git a/src/panfrost/midgard/midgard_compile.c b/src/panfrost/midgard/midgard_compile.c index 4b97013ebc9..643fe114b0d 100644 --- a/src/panfrost/midgard/midgard_compile.c +++ b/src/panfrost/midgard/midgard_compile.c @@ -561,6 +561,27 @@ reg_mode_for_nir(nir_alu_instr *instr) unsigned dst_bitsize = nir_dest_bit_size(instr->dest.dest); unsigned max_bitsize = MAX2(src_bitsize, dst_bitsize); + /* We don't have fp16 LUTs, so we'll want to emit code like: + * + * vlut.fsinr hr0, hr0 + * + * where both input and output are 16-bit but the operation is carried + * out in 32-bit + */ + + switch (instr->op) { + case nir_op_fsqrt: + case nir_op_frcp: + case nir_op_frsq: + case nir_op_fsin: + case nir_op_fcos: + case nir_op_fexp2: + case nir_op_flog2: + max_bitsize = MAX2(max_bitsize, 32); + default: + break; + } + switch (max_bitsize) { case 8: return midgard_reg_mode_8; diff --git a/src/panfrost/midgard/midgard_nir_algebraic.py b/src/panfrost/midgard/midgard_nir_algebraic.py index 8dc72bcf561..daaaafdd30e 100644 --- a/src/panfrost/midgard/midgard_nir_algebraic.py +++ b/src/panfrost/midgard/midgard_nir_algebraic.py @@ -93,12 +93,6 @@ for op in ('u2u', 'i2i', 'f2f', 'i2f', 'u2f', 'f2i', 'f2u'): srcsz *= 2 dstsz *= 2 -# Midgard outputs fp32 for specials. The f2f32 will be folded in later. -SPECIAL = ['fexp2', 'flog2', 'fsin', 'fcos', 'frcp', 'frsq'] - -for op in SPECIAL: - converts += [((op + '@16', a), ('f2f16', (op, ('f2f32', a))))] - # Try to force constants to the right constant_switch = [ # fge gets flipped to fle, so we invert to keep the order |