Marek Olšák
a77ee8b548
This mimics r600g. The R600_CONTEXT_xxx flags are added to rctx->b.flags and si_emit_cache_flush emits the packets. That's it. The shared radeon code tells us when the streamout cache should be flushed, so we have to check the flags anyway. There is a new atom "cache_flush", because caches must be flushed *after* resource descriptors are changed in memory. Functional changes: * Write caches are flushed at the end of CS and read caches are flushed at its beginning. * Sampler view states are removed from si_state, they only held the flush flags. * Everytime a shader is changed, the I cache is flushed. Is this needed? Due to a hw bug, this also flushes the K cache. * The WRITE_DATA packet is changed to use TC, which fixes a rendering issue in openarena. I'm not sure how TC interacts with CP DMA, but for now it seems to work better than any other solution I tried. (BTW CIK allows us to use TC for CP DMA.) * Flush the K cache instead of the texture cache when updating resource descriptors (due to a hw bug, this also flushes the I cache). I think the K cache flush is correct here, but I'm not sure if the texture cache should be flushed too (probably not considering we use TC for WRITE_DATA, but we don't use TC for CP DMA). * The number of resource contexts is decreased to 16. With all of these cache changes, 4 doesn't work, but 8 works, which suggests I'm actually doing the right thing here and the pipeline isn't drained during flushes. Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Tested-by: Tom Stellard <thomas.stellard@amd.com>
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 osmesa mesagdi to build classic mesa Windows GDI drivers; or 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. 1) install python 2.7 2) install scons (latest) 3) install mingw, flex, and bison 4) install libxml2 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get libxml2-python-2.9.1.win-amd64-py2.7.exe 5) install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe 6) install git 7) download mesa from git see http://www.mesa3d.org/repository.html 8) 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.