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7d5cdb7675
Pulling DF uniforms from pull constant buffer generates messages like:
send(4) g12<1>DF g12<0,1,0>F
sampler ld SIMD4x2 Surface = 1 Sampler = 0 mlen 1 rlen 1
which produces GPU hangs in Cherryview/Braswell:
"For 64-bit Align1 operation or multiplication of dwords in CHV,
source horizontal stride must be aligned to qword."
This seems to be documented in the Cherryview PRM, Volume 7, Page 843:
"When source or destination datatype is 64b or operation is integer
DWord multiply, regioning in Align1 must follow these rules:
1. Source and Destination horizontal stride must be aligned to the
same qword."
We should set the destination type to UD, D, or F so that
the register stride checker doesn't notice. The destination type of
send messages is basically irrelevant anyway.
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95462
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
(cherry picked from commit
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File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see http://www.mesa3d.org/repository.html - run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.