pan/bi: Add 32-bit _FAST packing
For frcp/frsq on newer Bifrost. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4470>
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@ -634,6 +634,17 @@ bi_pack_fma_1src(bi_instruction *ins, struct bi_registers *regs, unsigned op)
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RETURN_PACKED(pack);
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}
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static unsigned
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bi_pack_add_1src(bi_instruction *ins, struct bi_registers *regs, unsigned op)
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{
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struct bifrost_add_inst pack = {
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.src0 = bi_get_src(ins, regs, 0, true),
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.op = op
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};
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RETURN_PACKED(pack);
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}
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static enum bifrost_csel_cond
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bi_cond_to_csel(enum bi_cond cond, bool *flip, bool *invert, nir_alu_type T)
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{
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@ -974,6 +985,20 @@ bi_pack_add_blend(bi_instruction *ins, struct bi_registers *regs)
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RETURN_PACKED(pack);
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}
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static unsigned
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bi_pack_add_special(bi_instruction *ins, struct bi_registers *regs)
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{
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unsigned op = 0;
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if (ins->op.special == BI_SPECIAL_FRCP) {
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op = BIFROST_ADD_OP_FRCP_FAST_F32;
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} else {
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op = BIFROST_ADD_OP_FRSQ_FAST_F32;
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}
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return bi_pack_add_1src(ins, regs, op);
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}
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static unsigned
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bi_pack_add(bi_clause *clause, bi_bundle bundle, struct bi_registers *regs)
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{
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@ -1013,6 +1038,7 @@ bi_pack_add(bi_clause *clause, bi_bundle bundle, struct bi_registers *regs)
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case BI_STORE_VAR:
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return bi_pack_add_st_vary(clause, bundle.add, regs);
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case BI_SPECIAL:
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return bi_pack_add_special(bundle.add, regs);
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case BI_SWIZZLE:
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case BI_TEX:
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case BI_ROUND:
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@ -110,6 +110,8 @@ struct bifrost_fma_2src {
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} __attribute__((packed));
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#define BIFROST_ADD_OP_BLEND (0x1952c)
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#define BIFROST_ADD_OP_FRCP_FAST_F32 (0x0cc00)
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#define BIFROST_ADD_OP_FRSQ_FAST_F32 (0x0cc20)
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struct bifrost_add_inst {
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unsigned src0 : 3;
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