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mesa: Revert "pan/bi: Require ATEST coverage mask input in R60"

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This commit is contained in:
Rudi Heitbaum 2022-08-11 09:06:50 +00:00
parent 16f075c66f
commit f40ba96901
1 changed files with 52 additions and 0 deletions
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52
packages/graphics/mesa/patches/mesa-0001-22-1-5-Revert-pan-bi-Require-ATEST-coverage-mask-input-in-R60.patch Normal file
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@ -0,0 +1,52 @@
From c69f1dba5c2b51614d69580249d52eb62dddaf62 Mon Sep 17 00:00:00 2001
From: Eric Engestrom <eric@engestrom.ch>
Date: Wed, 10 Aug 2022 16:43:24 +0100
Subject: [PATCH] Revert "pan/bi: Require ATEST coverage mask input in R60"
This reverts commit 7ead256891cec7a301d2fd415405a7f9106b1f46.
See https://gitlab.freedesktop.org/mesa/mesa/-/issues/7025 for the
details, but the short version is that this was causing a segfault.
---
.pick_status.json | 2 +-
src/panfrost/bifrost/bi_ra.c | 11 -----------
2 files changed, 1 insertion(+), 12 deletions(-)
diff --git a/.pick_status.json b/.pick_status.json
index f33cb9b8538a..2dec29fd3e76 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -6349,7 +6349,7 @@
"description": "pan/bi: Require ATEST coverage mask input in R60",
"nominated": true,
"nomination_type": 0,
- "resolution": 1,
+ "resolution": 2,
"main_sha": null,
"because_sha": null
},
diff --git a/src/panfrost/bifrost/bi_ra.c b/src/panfrost/bifrost/bi_ra.c
index 7472c2e550b5..8b14c0ec79a9 100644
--- a/src/panfrost/bifrost/bi_ra.c
+++ b/src/panfrost/bifrost/bi_ra.c
@@ -334,17 +334,6 @@ bi_allocate_registers(bi_context *ctx, bool *success, bool full_regs)
if (node < node_count)
l->solutions[node] = 4;
}
-
- /* Experimentally, it seems coverage masks inputs to ATEST must
- * be in R60. Otherwise coverage mask writes do not work with
- * early-ZS with pixel-frequency-shading (this combination of
- * settings is legal if depth/stencil writes are disabled).
- */
- if (ins->op == BI_OPCODE_ATEST) {
- unsigned node = bi_get_node(ins->src[0]);
- assert(node < node_count);
- l->solutions[node] = 60;
- }
}
bi_compute_interference(ctx, l, full_regs);
--
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