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pan/bi: Add pack_format helper

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Packs a single quadword of a clause with a particular format and
parameters.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8723>
This commit is contained in:
Alyssa Rosenzweig 2021-01-06 13:41:06 -05:00 • committed by Marge Bot
parent 0e9a05c004
commit 51f13185c8
2 changed files with 40 additions and 0 deletions
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32
src/panfrost/bifrost/bi_pack.c
View file

@ -758,6 +758,38 @@ bi_pack_subword(enum bi_clause_subword t, unsigned format,
}
}
/* EC0 is 60-bits (bottom 4 already shifted off) */
void
bi_pack_format(struct util_dynarray *emission,
unsigned index,
struct bi_packed_tuple *tuples,
ASSERTED unsigned tuple_count,
uint64_t header, uint64_t ec0,
unsigned m0, bool z)
{
struct bi_clause_format format = bi_clause_formats[index];
uint8_t sync = bi_pack_sync(format.tag_1, format.tag_2, format.tag_3,
tuples, tuple_count, z);
uint64_t s0_s3 = bi_pack_t_ec(format.s0_s3, tuples, tuple_count, ec0);
uint16_t s4 = bi_pack_subword(format.s4, format.format, tuples, tuple_count, header, ec0, m0, 4);
uint32_t s5_s6 = bi_pack_subwords_56(format.s5_s6,
tuples, tuple_count, header, ec0,
(format.format == 2 || format.format == 7) ? 0 : 3);
uint64_t s7 = bi_pack_subword(format.s7, format.format, tuples, tuple_count, header, ec0, m0, 2);
/* Now that subwords are packed, split into 64-bit halves and emit */
uint64_t lo = sync | ((s0_s3 & ((1ull << 56) - 1)) << 8);
uint64_t hi = (s0_s3 >> 56) | ((uint64_t) s4 << 4) | ((uint64_t) s5_s6 << 19) | ((uint64_t) s7 << 49);
util_dynarray_append(emission, uint64_t, lo);
util_dynarray_append(emission, uint64_t, hi);
}
static void
bi_pack_clause(bi_context *ctx, bi_clause *clause,
bi_clause *next_1, bi_clause *next_2,

8
src/panfrost/bifrost/compiler.h
View file

@ -753,6 +753,14 @@ struct bi_packed_tuple {
uint64_t hi;
};
void
bi_pack_format(struct util_dynarray *emission,
unsigned index,
struct bi_packed_tuple *tuples,
ASSERTED unsigned tuple_count,
uint64_t header, uint64_t ec0,
unsigned m0, bool z);
unsigned bi_pack_fma(bi_instr *I,
enum bifrost_packed_src src0,
enum bifrost_packed_src src1,