Chris Wilson
ba9b71e56a
Since before the kernel supported I915_EXEC_NO_RELOC, long before our minimum kernel requirement, the kernel unconditionally invalidated all GPU TLBs before a batch and flushed all GPU caches after a batch. At that moment, the only use for read/write domain was for activity tracking, ensuring that future reads waited for the last writer and future writes waited for all reads. This only requires a single bit in the execbuf interface which can be supplied via the NO_RELOC interface, making the use of relocation domains entirely redundant. Trimming the excess writes into the array allows the compiler to be much more frugal: text data bss dec hex filename 8493790 357184 424944 9275918 8d8a0e i965_dri.baseline 8493758 357184 424944 9275886 8d89ee i965_dri.so (This text improvement really does come from dropping domains, not from the new use of C99 initializers.) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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 https://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.