diff options
| author | Alyssa Rosenzweig <[email protected]> | 2020-04-06 09:39:41 -0400 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-04-06 19:41:56 +0000 |
| commit | 8e50d449501d486141db5213027b538cc6d2ecb2 (patch) | |
| tree | 01104a4bc4ad486612101a547d7680cf3ca11aaa /src/panfrost | |
| parent | c37c799284d59b445c110d7b5ca4b1ee6fa64492 (diff) | |
pan/bit: Add special op interpreting
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4470>
Diffstat (limited to 'src/panfrost')
| -rw-r--r-- | src/panfrost/bifrost/test/bi_interpret.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/src/panfrost/bifrost/test/bi_interpret.c b/src/panfrost/bifrost/test/bi_interpret.c index 9217b9e42ea..b6807f55456 100644 --- a/src/panfrost/bifrost/test/bi_interpret.c +++ b/src/panfrost/bifrost/test/bi_interpret.c @@ -249,6 +249,19 @@ bit_eval_cond(enum bi_cond cond, bit_t l, bit_t r, nir_alu_type T, unsigned c) } } +static float +biti_special(float Q, enum bi_special_op op) +{ + switch (op) { + case BI_SPECIAL_FRCP: return 1.0 / Q; + case BI_SPECIAL_FRSQ: { + double Qf = 1.0 / sqrt(Q); + return Qf; + } + default: unreachable("Invalid special"); + } +} + void bit_step(struct bit_state *s, bi_instruction *ins, bool FMA) { @@ -310,9 +323,29 @@ bit_step(struct bit_state *s, bi_instruction *ins, bool FMA) case BI_MOV: bpoly(mov); + case BI_SPECIAL: { + assert(nir_alu_type_get_base_type(ins->dest_type) == nir_type_float); + assert(nir_alu_type_get_base_type(ins->dest_type) != nir_type_float64); + float Q = (ins->dest_type == nir_type_float16) ? + bf(srcs[0].u16[ins->swizzle[0][0]]) : + srcs[0].f32; + + float R = biti_special(Q, ins->op.special); + + if (ins->dest_type == nir_type_float16) { + dest.f16[0] = bh(R); + + if (!ins->swizzle[0][0] && ins->op.special == BI_SPECIAL_FRSQ) { + /* Sorry. */ + dest.f16[0]++; + } + } else { + dest.f32 = R; + } + break; + } + case BI_SHIFT: - case BI_STORE_VAR: - case BI_SPECIAL: /* _FAST, _TABLE on supported GPUs */ case BI_SWIZZLE: case BI_ROUND: unreachable("Unsupported op"); @@ -330,6 +363,7 @@ bit_step(struct bit_state *s, bi_instruction *ins, bool FMA) case BI_LOAD_VAR_ADDRESS: case BI_LOAD: case BI_STORE: + case BI_STORE_VAR: case BI_TEX: unreachable("Unsupported I/O in interpreter"); |