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agx: Condition writeout ops on already being emitted

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There's a lot of r/e waiting here, but will be needed for ld_tile. Match
the Metal blob.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10720>
This commit is contained in:
Alyssa Rosenzweig
2021-05-09 21:01:34 -04:00
parent 41d8db33a2
commit 1b9b2f9046
2 changed files with 10 additions and 2 deletions
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9
src/asahi/compiler/agx_compile.c
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@@ -172,9 +172,14 @@ agx_emit_fragment_out(agx_builder *b, nir_intrinsic_instr *instr)
unsigned rt = (loc - FRAG_RESULT_DATA0); unsigned rt = (loc - FRAG_RESULT_DATA0);
/* TODO: Reverse-engineer interactions with MRT */ /* TODO: Reverse-engineer interactions with MRT */
agx_writeout(b, 0xC200); if (b->shader->did_writeout) {
agx_writeout(b, 0x000C); agx_writeout(b, 0x0004);
} else {
agx_writeout(b, 0xC200);
agx_writeout(b, 0x000C);
}
b->shader->did_writeout = true;
return agx_st_tile(b, agx_src_index(&instr->src[0]), return agx_st_tile(b, agx_src_index(&instr->src[0]),
b->shader->key->fs.tib_formats[rt]); b->shader->key->fs.tib_formats[rt]);
} }

3
src/asahi/compiler/agx_compiler.h
View File

@@ -318,6 +318,9 @@ typedef struct {
/* For creating temporaries */ /* For creating temporaries */
unsigned alloc; unsigned alloc;
/* I don't really understand how writeout ops work yet */
bool did_writeout;
/* Stats for shader-db */ /* Stats for shader-db */
unsigned loop_count; unsigned loop_count;
unsigned spills; unsigned spills;