Meson's compiler.has_header is completely useless, it only checks that a
header exists, not whether it's usable. This creates problems if a
header contains a conditional #error declaration, like so:
> #if __x86_64__
> # error "Doesn't work with x86_64!"
> #endif
Compiler.has_header will return true in this case, even when compiling
for x86_64. This is useless.
Instead, we'll do a compile check so that any #error declarations will
be treated as errors, and compilation will work.
Fixes compilation on x32 architecture.
Gentoo Bugzilla: https://bugs.gentoo.org/show_bug.cgi?id=649746
meson bug: https://github.com/mesonbuild/meson/issues/2246
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
When it is detected that a window could have been flipped
but has been copied because of suboptimal format/modifier.
The Vulkan client should then re-create the swapchain.
Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Adds support for multiple planes and buffer modifiers.
v4: Rename "has_dri3_v1_1" to "has_dri3_modifiers"
v12: Multi-planar/modifier support is now DRI3 v1.2; also update release
versions
Tegra K1 and later use a GPU that can be driven by the Nouveau driver.
But the GPU is a pure render node and has no display engine, hence the
scanout needs to happen on the Tegra display hardware. The GPU and the
display engine each have a separate DRM device node exposed by the
kernel.
To make the setup appear as a single device, this driver instantiates
a Nouveau screen with each instance of a Tegra screen and forwards GPU
requests to the Nouveau screen. For purposes of scanout it will import
buffers created on the GPU into the display driver. Handles that
userspace requests are those of the display driver so that they can be
used to create framebuffers.
This has been tested with some GBM test programs, as well as kmscube and
weston. All of those run without modifications, but I'm sure there is a
lot that can be improved.
Some fixes contributed by Hector Martin <marcan@marcan.st>.
Changes in v2:
- duplicate file descriptor in winsys to avoid potential issues
- require nouveau when building the tegra driver
- check for nouveau driver name on render node
- remove unneeded dependency on libdrm_tegra
- remove zombie references to libudev
- add missing headers to C_SOURCES variable
- drop unneeded tegra/ prefix for includes
- open device files with O_CLOEXEC
- update copyrights
Changes in v3:
- properly unwrap resources in ->resource_copy_region()
- support vertex buffers passed by user pointer
- allocate custom stream and const uploader
- silence error message on pre-Tegra124
- support X without explicit PRIME
Changes in v4:
- ship Meson build files in distribution tarball
- drop duplicate driver_tegra dependency
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
It should be possible to build EGL without GLX, but the meson build
currently doesn't allow that because it too tightly couples glx and dri.
This patch eases dri and glx apart, so that EGL without GLX can be
built.
CC: Daniel Stone <daniels@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
This re-adds the auto option for omx, without it we default to tizonia
and the build fails almost immediately, this is especially obnoxious
those building a driver that doesn't support the OMX state tracker to
begin with.
v2: - Only define OMX_FOO for auto cases if the dependencies are found.
This fixes building tizonia with auto (Julien, Eric)
CC: Gurkirpal Singh <gurkirpal204@gmail.com>
Fixes: bb5e27fab6
("st/omx/bellagio: Rename st and target directories")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Jon Turney <jon.turney@dronecode.org.uk> (v1)
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Julien Isorce <julien.isorce@gmail.com>
Tested-by: Karol Herbst <kherbst@redhat.com> (v1)
Fixes: 26a9321d0a "freedreno: add global_bindings state"
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Allow only bellagio or tizonia to be used at the same time.
Detect tizonia package config file
Generate libomx_mesa.so and install it to libtizcore.pc::pluginsdir
Only compile empty source (target.c) for now.
GSoC Project link: https://summerofcode.withgoogle.com/projects/#4737166321123328
Acked-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Julien Isorce <julien.isorce@gmail.com>
v2: Refactor out screen functions to st/omx
Allows to keep all the code under st/omx (st/omx/tizonia and
st/omx/bellagio).
Reverts targets/omx_bellagio to omx as additions to existing files
is enough to compile for both bellagio and tizonia.
* autotools changes:
--enable-omx -> --enable-omx-bellagio
* meson changes:
-Dgallium-omx=false -> -Dgallium-omx=disabled
-Dgallium-omx=true -> -Dgallium-omx=bellagio
Acked-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Julien Isorce <julien.isorce@gmail.com>
The disk cache implementation uses 64-bit atomic operations. For some
architectures, such as 32-bit ARM, GCC will not be able to translate
these operations into atomic, lock-free instructions and will instead
rely on the external atomics library to provide these operations.
Check at configuration time whether or not linking against libatomic
is necessary and if so, create a dependency that can be used while
linking the mesautil library.
This is the meson equivalent of 2ef7f23820 ("configure: check if
-latomic is needed for __atomic_*").
For some background information on this, see:
https://gcc.gnu.org/wiki/Atomic/GCCMM
Changes in v2:
- clarify meaning of lock-free in commit message
- fix build if -latomic is not necessary
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
3 digits versions in LLVM only started from 3.4.1 on.
Hence, even if you can perfectly build with an old LLVM (< 3.4.1) in
the system while not needing LLVM at all (auto), when passing through
the LLVM version detection code, meson will fail when accessing
"_llvm_version[2]" due to:
"Index 2 out of bounds of array of size 2."
v2: Properly compare LLVM version and set patch version to 0
if < 3.4.1 (Eric).
v3: Improve the commit log explanation (Eric).
Cc: Dylan Baker <dylan@pnwbakers.com>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Inspired-by: a similar patch for libdrm by Heiko Becker
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Since radv and radeonsi removed support for LLVM 3.9 the distcheck
target got broken because SWR distribution needed 3.9.x.
After checking with George Kyriazis, SWR is OK with moving to LLVM 4.0
and above, which will solve this problem.
Fixes: 3bf1e036e8 ("amd: remove support for LLVM 3.9")
Cc: George Kyriazis <george.kyriazis@intel.com>
Cc: Tim Rowley <timothy.o.rowley@intel.com>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: Dylan Baker <dylan@pnwbakers.com>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: George Kyriazis <george.kyriazis@intel.com>
Unlike vdpau this is required.
Fixes: 22a817af8a ("meson: build gallium xvmc state tracker")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Acked-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This state tracker actually needs to link, unlike vdpau.
Fixes: 1d36dc674d ("meson: build gallium omx state tracker")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Acked-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Fixes: 5a785d51a6 ("meson: build gallium va state tracker")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Acked-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Add a build option to control building some of the misc tools we
have. Also set the executables to install, presumably you want
that if you're asking for the build.
v2: set 'install:' to the with_tools value, not true (Jordan)
handle 'all' in a the comma list (Dylan)
Add freedreno's tools (Dylan)
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
set suitable defaults for 'dri-drivers', 'gallium-drivers', 'vulkan-drivers'
and 'platforms' options for osx, windows and cygwin, adding cygwin where
appropriate.
v2: error() for unknown OS
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Currently we always check for 3.9.0, which is pretty safe since
everything except radv work with >= 3.9 and 3.9 is pretty old at this
point. However, radv actually requires 4.0, and there is a patch for
radeonsi to do the same.
Fixes: 673dda8330 ("meson: build "radv" vulkan driver for radeon hardware")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Currently there is not a separate option for setting the search path of
DRI drivers in meson, like there is in scons and autotools. This is an
oversight and needs to be fixed. This adds an extra option
`dri-search-path`, which will default to the value of
`dri-drivers-path`, like autotools does.
v2: - Split input list before joining.
v3: - use : instead of ; as the delimiter. The autotools help string
incorrectly says ; but the code uses :
v4: - Take list in pre : delimited form (Ilia)
- Ensure that the dri-search-path is absolute when using
dri_drivers_path
Fixes: db9788420d ("meson: Add support for configuring dri drivers directory.")
Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net> (v2)
Reviewed-by: Eric Engestrom <eric@engestrom.ch> (v3)
Otherwise, using pkg-config to retrieve flags will fail, e.g.
$ pkg-config gl --cflags
Package libdrm was not found in the pkg-config search path.
Perhaps you should add the directory containing `libdrm.pc'
to the PKG_CONFIG_PATH environment variable
Package 'libdrm', required by 'gl', not found
Fixes: 3218056e0e ("meson: Build i965 and dri stack")
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
When LLVM is built inside of a git repo (even way below, e.g. /usr/ports/.git
exists, and LLVM is built in /usr/ports/devel/llvm50/work), its version
becomes something like 5.0.0git-f8ab206b2176.
New meson versions already handle this, but we support older versions too.
Fixes: 673dda8330 ("meson: build "radv" vulkan driver for radeon hardware")
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
get_pkgconfig_variable('cflags') always returns an empty list, it's a
function for getting *custom* variables.
Meson does not yet support asking for cflags, so explicitly invoke
pkg-config for now.
Fixes: 68076b8747 ("meson: build gallium vdpau state tracker")
Fixes: a817af8a89eb ("meson: build gallium xvmc state tracker")
Fixes: 1d36dc674d ("meson: build gallium omx state tracker")
Fixes: 5a785d51a6 ("meson: build gallium va state tracker")
Reviewed-by: Dylan Baker <dylan.c.baker@intel.com>
LLVM patch level is not included in HAVE_LLVM.
Fixes: e6418ab156 ("meson: build "radv" vulkan driver for radeon hardware")
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan.c.baker@intel.com>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Before we were adding -DHAVE_SSE41 which isn't what the code is
looking for, so some uses of the sse4.1 code were always being
skipped.
v2: Don't add any compile check for the quite old -msse4.1 option (Dylan)
Fixes: 84486f6462 ("meson: Enable SSE4.1 optimizations")
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Defines
- HAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL
- HAVE_FUNC_ATTRIBUTE_VISIBILITY
were misspelled.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Set with_dri from with_gallium when DRI GLX is explicitly configured, as
well as when DRI GLX is chosen automatically.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
The next change wants to use some optional zlib functionality, however
not all platforms currently use zlib. Based on earlier Jordan Justen's
patches and their review feedback.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This has only been compile tested.
v2: - Have a single option for opencl (Eric E)
- fix typo "tgis" -> "tgsi" (Curro)
- Don't add "lib" to pipe loader libraries, which matches the
autotools behavior
v3: - Remove trailing whitespace
- Make PIPE_SEARCH_DIR an absolute path
v4: - add trailing / to LIBCLC defines
Acked-by: Curro Jerez <currojerez@riseup.net>
Tested-by: Jan Vesely <jan.vesely@rutgers.edu>
cc: Aaron Watry <awatry@gmail.com>
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
This enables the SWR driver, but doesn't actually hook it up to any of
the targets yet. I felt like this patch was big and complicated enough
without adding that.
v2: - Fix typo 'delemeited' -> 'delimited' (Eric E)
- Fix type 'errror' -> 'error' (Eric E)
- Use variables to hold files instead of looking above the current
meson build (Eric E)
- Use foreach loops to reduce the number of unique generators
- Add comment about why some generators have names and some are just
added to a list
v3: - Remove trailing whitespace
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
For devices (and kernels) which support different priority ringbuffers,
expose context priority support.
Signed-off-by: Rob Clark <robdclark@gmail.com>
To demonstrate this bug run meson with the options:
-Ddri-drivers= -Dglx=gallium-xlib
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
src/gallium/winsys/pl111/drm/libpl111winsys.a(pl111_drm_winsys.c.o): In function `pl111_drm_screen_create':
pl111_drm_winsys.c:(.text+0x33): undefined reference to `vc4_drm_screen_create_renderonly'
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
v2: - set d3d_drivers_path instead of dri_drivers_path
- Fix nine guard to check for all relavent gallium drivers
- Link with libswdri and libswkmsdri when necessary
- Fix pkg-config generation
- Add missing comma
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This argument is the wrong approach for handling gallium media state
trackers, since it doesn't allow for an auto option. Instead we'll use
tristates, which do allow for auto.
This option has never been wired to anything anyway.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
v2: - Make -Dlmsensors=false work
- Simplify auto and true cases
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
v4: - Ensure inc_amd_common defined when radeonsi is disabled (needed by
r600)
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Tested-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This fixes the windows and macos stubs to be consistent with the *nix
path.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This is still not fully correct (haiku and BSD is notably probably not
correct), but Linux is not regressed and this should be correct for
macOS and Windows.
v2: - set the dri_platform to windows on Cygwin as well (Jon)
v3: - Add a better todo for Hurd (Eric)
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This option has been acting as a strange sort of half-tri state anyway.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This is necessary to support operating systems other than the *nix
family (excluding macOS). For Linux nothing has changed, the defaults
are still the same.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
There is one provided unconditionally, and one guarded by platform ==
linux. Remove the unconditional one.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
These are all either done already, or are autotools specific. The
misspelled gallium G3DVL is the autotools specific bit, meson is
handling that via build_by_default.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This function is required for both the Intel "Anvil" vulkan driver and
the i965 GL driver. Error out if either of those is enabled but this
function isn't found.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This patch allows building asm for x86 on x86_64 platforms, when the
operating system is the same. Previously cross compile always turned off
assembly. This allows using a cross file to cross compile x86 binaries
on x86_64 with asm.
This could probably be relaxed further thanks to meson's "exe_wrapper",
which is way to specify an emulator or compatibility layer (wine) that
can run the foreign binaries on the build system. Since the meson build
at this point only supports building on Linux I can't test this and I
don't want to write/enable code that cannot even be build tested.
v4: - set condition to build == x86_64 and host == x86 and
build.system == host.system
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
This patch checks for an and then enables sse4.1 optimizations if the
host machine will be x86/x86_64.
v2: - Don't compile code, it's unnecessary since we require a compiler
which always has SSE4.1 (Matt)
v3: - x64 -> x86_64 (Matt)
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
I'm not sure of the reason for this. I don't see anything like this in
configure.ac
In include/c11/threads.h the cases are:
1) building for Windows -> threads_win32.h
2) HAVE_PTHREAD -> threads_posix.h
3) Not supported on this platform
So not defining HAVE_PTHREAD for anything not Windows just means we can't
build at all.
When we are building for Windows, I'm not sure if dependency('threads')
would ever find anything, or defining HAVE_PTHREAD has any effect, but avoid
defining it there, just in case.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Tested with Travis and Appveyor.
v2: add HAVE_TIMESPEC_GET for non-Windows Scons builds
v3: use check_functions in Scons (Eric)
Cc: Rob Herring <robh@kernel.org>
Cc: Alexander von Gluck IV <kallisti5@unixzen.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103674
Fixes: f1a3648784 ("threads: update for late C11 changes")
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Jon Turney <jon.turney@dronecode.org.uk> (v2)
It's ok to use an empty list for dependencies:, but it's not ok to try to
use the found() method of it.
See also https://github.com/mesonbuild/meson/issues/2324
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
The window-system auto-detection code (specifically for glx) relies on
with_any_vk being available. This fixes the Vulkan-only build. Also,
this puts it up near the handling of -Ddri-drivers and -Dgallium-drivers
which seems to make a bit more sense.
Fixes: 118a7f0441 "meson: add support for xlib glx"
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
It should be perfectly valid to build a completely headless Vulkan
driver. We don't need to require a platform.
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
There is a bunch of churn in the main meson.build so that we can
correctly set the auto tristate of GLX. In particular, don't build
xlib-based glx when dri and gallium are disabled but vulkan is enabled,
in that case just turn glx off.
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This allows drivers to be set by OS/arch in a sane manner.
v2: - set _drivers to a list of drivers instead of manually assigning
each with_*
v3: - Use "auto" instead of "default", which matches the value of other
automatically configured options.
- Set vulkan drivers as well
- Add error message if no automatic drivers are known for a given
arch/OS combo
- use not(darwin or windows) instead of (linux or *bsd), which is
probably more accurate (that way Solaris and other *nix systems
aren't excluded)
- rename softpipe to swrast, as swrast is the actual option name
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Meson has up until this point set it's version in the root meson.build
script, while the other build systems read the VERSION file. This is
just "one more thing" to duplicate between meson and every other build
system. This script is a simple "read, strip, print" sort of deal to
allow meson to read the VERSION file.
I chose to implement this in python since python is portable, and to
keep the meson.build script clean. This is also complicated by the fact
that the project() call *must* be the first non-comment,non-blank in the
toplevel meson.build script.
v2: - Move from scripts/ to bin/
- use python explicitly to run the scripts to support windows
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
The gallium auxiliary build would link against llvm, for the gallivm code
that it didn't build. This broke the build on my armhf cross, where
libLLVM-3.9.so is not multiarch and thus points to x86-64 libs.
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Tested-by: Timothy Arceri <tarceri@itsqueeze.com>
While modern pthread mutexes are very fast, they still incur a call to an
external DSO and overhead of the generality and features of pthread mutexes.
Most mutexes in mesa only needs lock/unlock, and the idea here is that we can
inline the atomic operation and make the fast case just two intructions.
Mutexes are subtle and finicky to implement, so we carefully copy the
implementation from Ulrich Dreppers well-written and well-reviewed paper:
"Futexes Are Tricky"
http://www.akkadia.org/drepper/futex.pdf
We implement "mutex3", which gives us a mutex that has no syscalls on
uncontended lock or unlock. Further, the uncontended case boils down to a
cmpxchg and an untaken branch and the uncontended unlock is just a locked decr
and an untaken branch. We use __builtin_expect() to indicate that contention
is unlikely so that gcc will put the contention code out of the main code
flow.
A fast mutex only supports lock/unlock, can't be recursive or used with
condition variables. We keep the pthread mutex implementation around as
for the few places where we use condition variables or recursive locking.
For platforms or compilers where futex and atomics aren't available,
simple_mtx_t falls back to the pthread mutex.
The pthread mutex lock/unlock overhead shows up on benchmarks for CPU bound
applications. Most CPU bound cases are helped and some of our internal
bind_buffer_object heavy benchmarks gain up to 10%.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Because meson mirrors the auototools logic, it needs the same changes to
allow building glvnd based egl.
v2: - change if to elif (Eric)
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Dylan Baker
Greg V
Louis-Francis Ratté-Boulianne
Daniel Stone
Thierry Reding
Christian Gmeiner
Gurkirpal Singh
Thierry Reding
Andres Gomez
Eric Engestrom
Marek Olšák
Alexander von Gluck IV
Scott D Phillips
Jon Turney
Marc Dietrich
Grazvydas Ignotas
Rob Clark
Bas Nieuwenhuizen
Jason Ekstrand
Vinson Lee
Nicolai Hähnle
Eric Anholt
Timothy Arceri