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agx: Make signal_pix instructions explicit

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Rather than implicitly packing them with the sample_mask. Again, this is just
changing where they're emitted, no functional changes yet. Bug for bug
compatibility with the old behaviour.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22353>
This commit is contained in:
Alyssa Rosenzweig
2023-03-29 22:17:18 -04:00
committed by Marge Bot
parent bb530760a2
commit 8a6d74d15b
3 changed files with 4 additions and 14 deletions
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4
src/asahi/compiler/agx_compile.c
View File

@@ -423,6 +423,7 @@ agx_write_sample_mask_1(agx_builder *b)
* TODO: interactions with MSAA and gl_SampleMask writes
*/
agx_sample_mask(b, agx_immediate(1));
agx_signal_pix(b, 1);
b->shader->did_sample_mask = true;
assert(!(b->shader->nir->info.outputs_written &
@@ -668,7 +669,8 @@ agx_emit_discard(agx_builder *b)
b->shader->did_writeout = true;
b->shader->out->writes_sample_mask = true;
return agx_sample_mask(b, agx_immediate(0));
agx_sample_mask(b, agx_immediate(0));
return agx_signal_pix(b, 1);
}
static agx_instr *

1
src/asahi/compiler/agx_opcodes.py
View File

@@ -329,6 +329,7 @@ op("no_varyings", (0x80000051, 0xFFFFFFFF, 4, _), dests = 0, can_eliminate = Fal
op("stop", (0x88, 0xFFFF, 2, _), dests = 0, can_eliminate = False)
op("trap", (0x08, 0xFFFF, 2, _), dests = 0, can_eliminate = False)
op("wait_pix", (0x48, 0xFF, 4, _), dests = 0, imms = [WRITEOUT], can_eliminate = False)
op("signal_pix", (0x58, 0xFF, 4, _), dests = 0, imms = [WRITEOUT], can_eliminate = False)
# Sources are the image and the offset within shared memory
# TODO: Do we need the short encoding?

13
src/asahi/compiler/agx_pack.c
View File

@@ -508,19 +508,6 @@ agx_pack_instr(struct util_dynarray *emission, struct util_dynarray *fixups,
unsigned size = 4;
memcpy(util_dynarray_grow_bytes(emission, 1, size), &raw, size);
{
/* This is actually a separate instruction.
*
* signal_pix 1, 0
*
* We don't model this correctly yet, but we should.
*/
uint32_t raw = 0x158;
unsigned size = 4;
memcpy(util_dynarray_grow_bytes(emission, 1, size), &raw, size);
}
break;
}