Alexandre Courbot
f22406837f
Some GPUs (e.g. GK20A, GM20B) do not embed VRAM of their own and use the system memory as a backend instead. For such systems, allocating objects in VRAM results in errors since the kernel will not allow VRAM objects allocations. This patch adds a vram_domain member to struct nouveau_screen that can optionally be initialized to an alternative domain to use for VRAM allocations. If left untouched, NOUVEAU_BO_VRAM will be used for systems that embed VRAM, and NOUVEAU_BO_GART will be used for VRAM-less systems. Code that uses GPU objects is then expected to use the NV_VRAM_DOMAIN() macro in place of NOUVEAU_BO_VRAM to ensure correct behavior on VRAM-less chips. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> Reviewed-by: Martin Peres <martin.peres@free.fr>
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.