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Aaron Watry 1492237b74 radeon/winsys: Limit max allocation size to 70% of VRAM
The CL CTS queries the max allocation size, and then attempts to
allocate buffers of that size. If not enough contiguous RAM/VRAM is
available, this causes errors in the radeon kernel module due to
inability to allocate the required memory.

It's a bit of a hack, but experimentally on my system, I can use ~3/4
of the card's VRAM for a single global/constant buffer allocation given
current GUI/compositor use.

For a 1GB Pitcairn (HD7850) this gets me from the reported clinfo values of:
Global memory size                              2143076352 (1.996GiB)
Max memory allocation                           1500153446 (1.397GiB)
Max constant buffer size                        1500153446 (1.397GiB)

To:
Global memory size                              2143076352 (1.996GiB)
Max memory allocation                           751619276 (716MiB)
Max constant buffer size                        751619276 (716MiB)

Fixes: OpenCL CTS test/conformance/api/min_max_mem_alloc_size,
       OpenCL CTS test/conformance/api/min_max_constant_buffer_size

Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
(cherry picked from commit e4d06e4c53)
2017-07-08 15:47:58 +03:00
bin cherry-ignore: bin/get-fixes-pick-list.sh: better identify multiple "fixes:" tags 2017-06-28 20:17:13 +03:00
docs docs: add sha256 checksums for 17.1.4 2017-06-30 20:31:52 +03:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include radeonsi: add new polaris12 pci id 2017-06-28 20:15:03 +03:00
m4 build: Remove unused AX_CHECK_COMPILE_FLAG macro 2016-07-25 15:14:12 +02:00
scons scons: update for LLVM 4.0 2017-05-08 11:24:03 +01:00
scripts get_reviewer.pl: fix mesa check 2016-08-30 16:44:00 -04:00
src radeon/winsys: Limit max allocation size to 70% of VRAM 2017-07-08 15:47:58 +03:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Fix up the tab rendering width. 2017-01-03 10:38:53 -08:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore .gitignore: Ignore tags generated by make tags 2016-08-24 11:33:48 +01:00
.mailmap .mailmap: Update my address again 2016-08-25 13:55:52 -07:00
.travis.yml travis: remove workarounds for the Vulkan target 2017-05-31 22:32:04 +02:00
Android.common.mk Android: major/minor/makedev live in <sys/sysmacros.h> 2017-06-28 20:17:13 +03:00
Android.mk Android: drop Android 4.4 (KitKat) support 2017-03-22 17:53:31 +00:00
appveyor.yml appveyor: Update dependencies. 2017-03-29 11:53:03 +01:00
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
CleanSpec.mk android: Depend on gallium_dri from EGL, instead of linking in gallium. 2015-06-09 11:38:45 -07:00
common.py scons: Recognize LLVM_CONFIG environment variable. 2016-11-24 13:37:33 -08:00
configure.ac configure.ac: add -pthread to PTHREAD_LIBS 2017-06-28 20:15:03 +03:00
install-gallium-links.mk gallium: Fix install-gallium-links.mk on non-bash /bin/sh 2016-10-10 08:56:12 -07:00
install-lib-links.mk install-lib-links: remove the .install-lib-links file 2015-02-24 15:33:25 +00:00
Makefile.am configure.ac: deprecate --with-egl-platforms over --with-platforms 2017-04-17 13:37:41 +01:00
REVIEWERS REVIEWERS: add autogen.sh to the autoconf group 2017-03-23 14:50:51 +00:00
SConstruct scons: whitespace cleanup 2016-05-25 12:23:12 -06:00
VERSION Update version to 17.1.4 2017-06-30 20:09:50 +03:00

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.