Jason Ekstrand
651ec926fc
This commit adds support for using the full 48-bit address space on Broadwell and newer hardware. Thanks to certain limitations, not all objects can be placed above the 32-bit boundary. In particular, general and state base address need to live within 32 bits. (See also Wa32bitGeneralStateOffset and Wa32bitInstructionBaseOffset.) In order to handle this, we add a supports_48bit_address field to anv_bo and only set EXEC_OBJECT_SUPPORTS_48B_ADDRESS if that bit is set. We set the bit for all client-allocated memory objects but leave it false for driver-allocated objects. While this is more conservative than needed, all driver allocations should easily fit in the first 32 bits of address space and keeps things simple because we don't have to think about whether or not any given one of our allocation data structures will be used in a 48-bit-unsafe way. Reviewed-by: Kristian H. Kristensen <krh@bitplanet.net>
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.