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The initial firmware for hawaii does not support type3 nop packet. Detect the new hawaii firmware with query RADEON_INFO_ACCEL_WORKING2. If the returned value is 3, then the new firmware is used. This patch uses type2 for the old firmware and type3 for the new firmware. It fixes the cases when the old firmware is used and the user wants to manually enable acceleration. The two possible scenarios are: - the kernel has no support for the new firmware. - the kernel has support for the new firmware but only the old firmware is available. Additionaly this patch disables GPU acceleration on hawaii if the kernel returns a value < 2. In this case the kernel hasn't the required fixes for proper acceleration. v2: - Fix indentation - Use private struct radeon_drm_winsys instead of public struct radeon_info - Rename r600_accel_working2 to accel_working2 v3: - Use type2 nop packet for returned value < 3 v4: - Fail to initialize winsys for returned value < 2 Cc: mesa-stable@lists.freedesktop.org Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Marek Olšák <marek.olsak@amd.com> Cc: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@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. - 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.