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agx: Add doorbell and stack mapping opcodes

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Signed-off-by: Mary Guillemard <mary@mary.zone>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26056>
This commit is contained in:
Mary Guillemard 2023-10-27 20:27:10 +02:00 • committed by Marge Bot
parent 0aa4148978
commit ee0e7b8347
2 changed files with 42 additions and 0 deletions
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6
src/asahi/compiler/agx_opcodes.py
View file

@ -421,6 +421,12 @@ memory_barrier("image_barrier_4", 3, 1, 10)
memory_barrier("flush_memory_to_texture", 0, 0, 4)
op("doorbell", (0x60020 | 0x28 << 32, (1 << 48) - 1, 6, _), dests = 0,
can_eliminate = False, can_reorder = False, imms = [IMM])
op("stack_unmap", (0x00075, (1 << 24) - 1, 8, _), dests = 1, srcs = 0, can_eliminate = False, can_reorder = False, imms = [IMM])
op("stack_map", (0x10075, (1 << 24) - 1, 8, _), dests = 0, srcs = 1, can_eliminate = False, can_reorder = False, imms = [IMM])
# Convenient aliases.
op("mov", _, srcs = 1)
op("not", _, srcs = 1)

36
src/asahi/compiler/agx_pack.c
View file

@ -967,6 +967,42 @@ agx_pack_instr(struct util_dynarray *emission, struct util_dynarray *fixups,
break;
}
case AGX_OPCODE_DOORBELL: {
assert(I->imm < BITFIELD_MASK(8));
struct agx_opcode_info info = agx_opcodes_info[I->op];
uint64_t raw = info.encoding.exact | (I->imm << 40);
memcpy(util_dynarray_grow_bytes(emission, 1, 6), &raw, 6);
break;
}
case AGX_OPCODE_STACK_UNMAP:
case AGX_OPCODE_STACK_MAP: {
agx_index value = I->op == AGX_OPCODE_STACK_MAP ? I->src[0] : I->dest[0];
assert(value.type == AGX_INDEX_REGISTER);
assert(value.size == AGX_SIZE_32);
assert(I->imm < BITFIELD_MASK(16));
unsigned q1 = 0; // XXX
unsigned q2 = 0; // XXX
unsigned q3 = 0; // XXX
unsigned q4 = 16; // XXX
unsigned q5 = 16; // XXX
struct agx_opcode_info info = agx_opcodes_info[I->op];
uint64_t raw =
info.encoding.exact | (q1 << 8) | ((value.value & 0x1F) << 11) |
((I->imm & 0xF) << 20) | (1UL << 24) | // XXX
(1UL << 26) | // XXX
(q2 << 30) | ((uint64_t)((I->imm >> 4) & 0xF) << 32) |
((uint64_t)q3 << 37) | ((uint64_t)(value.value >> 5) << 40) |
((uint64_t)q4 << 42) | (1UL << 47) | // XXX
((uint64_t)q5 << 48) | ((uint64_t)(I->imm >> 8) << 56);
memcpy(util_dynarray_grow_bytes(emission, 1, 8), &raw, 8);
break;
}
default:
agx_pack_alu(emission, I);
return;