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Add fix for rhbz#1411447

This commit is contained in:
Lyude 2017-06-06 12:21:33 -04:00
parent 4e283e4f9e
commit b72aa83670
2 changed files with 56 additions and 1 deletions
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50
0001-nvc0-Disable-BGRA8-images-on-Fermi.patch Normal file
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@ -0,0 +1,50 @@
From 14a5478a27ccd58855d49d227b0762287fd2cbc2 Mon Sep 17 00:00:00 2001
From: Lyude <lyude@redhat.com>
Date: Fri, 2 Jun 2017 20:27:07 -0400
Subject: [PATCH] nvc0: Disable BGRA8 images on Fermi
For unknown reasons, using BGRA8 images on Fermi results in breaking
reads from PBOs, such that they always return 0x0. Discovered this
through a glamor bug, and confirmed it does indeed break a good number
of piglit tests such as spec/arb_pixel_buffer_object/pbo-read-argb8888
Until we have a proper fix, just disable this functionality on Fermi.
Signed-off-by: Lyude <lyude@redhat.com>
---
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index c636926..f6c5c72 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -87,11 +87,20 @@ nvc0_screen_is_format_supported(struct pipe_screen *pscreen,
bindings &= ~(PIPE_BIND_LINEAR |
PIPE_BIND_SHARED);
- if (bindings & PIPE_BIND_SHADER_IMAGE && sample_count > 1 &&
- nouveau_screen(pscreen)->class_3d >= GM107_3D_CLASS) {
- /* MS images are currently unsupported on Maxwell because they have to
- * be handled explicitly. */
- return false;
+ if (bindings & PIPE_BIND_SHADER_IMAGE) {
+ if (sample_count > 1 &&
+ nouveau_screen(pscreen)->class_3d >= GM107_3D_CLASS) {
+ /* MS images are currently unsupported on Maxwell because they have to
+ * be handled explicitly. */
+ return false;
+ }
+
+ if (format == PIPE_FORMAT_B8G8R8A8_UNORM &&
+ nouveau_screen(pscreen)->class_3d < NVE4_3D_CLASS) {
+ /* This should work on Fermi, but for currently unknown reasons it
+ * does not and results in breaking reads from pbos. */
+ return false;
+ }
}
return (( nvc0_format_table[format].usage |
--
2.9.4

7
mesa.spec
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@ -60,7 +60,7 @@
Name: mesa
Summary: Mesa graphics libraries
Version: 17.0.5
Release: 2%{?rctag:.%{rctag}}%{?dist}
Release: 3%{?rctag:.%{rctag}}%{?dist}
License: MIT
URL: http://www.mesa3d.org
@ -91,6 +91,8 @@ Patch14: 0001-Fix-linkage-against-shared-glapi.patch
Patch15: 0001-glapi-Link-with-glapi-when-built-shared.patch
# submitted upstream
Patch16: 0001-glxglvnddispatch-Add-missing-dispatch-for-GetDriverC.patch
# fix XWayland on fermi with nouveau
Patch17: 0001-nvc0-Disable-BGRA8-images-on-Fermi.patch
BuildRequires: gcc
BuildRequires: gcc-c++
@ -692,6 +694,9 @@ popd
%endif
%changelog
* Tue Jun 06 2017 Lyude Paul <lyude@redhat.com> - 17.0.5-3
- add fix for rhbz#1411447
* Wed May 03 2017 Dave Airlie <airlied@redhat.com> - 17.0.5-2
- enable radv