Arch Linux User Repository

removed obsolete options, build now works again.

building opencl clover is disabled for now, see https://gitlab.freedesktop.org/mesa/mesa/-/issues/11863

Those that need opencl should use rusticl instead. Note that rusticl at runtime is disabled by default, see https://docs.mesa3d.org/envvars.html#rusticl-environment-variables for info about enabling it.

Mesa and llvm are closely tied together. Everytime the llvm mesa is built against changes/updates , mesa needs to be rebuilt.

I expect anyone building mesa-git against one of the llvm trunk variants to be able to do that themselves, but atleast some of the people that built against repo llvm don't understand how to deal with such a rebuild.

The rest of this post is meant for those people.

• Verify if latest PKGBUILD requirements match llvm repo versions.
• If they don't , post to alert the maintainer of this.
• DELAY the update of llvm/clang suite and their lib32- counterparts
• Once the PKGBUILD does match, download it.

Option A - best one

• run pacman -Syu to ensure your system is in sync with your mirrror server
• build mesa-git in a clean chroot

see https://wiki.archlinux.org/index.php/DeveloperWiki:Building_in_a_clean_chroot for the official way or https://aur.archlinux.org/packages/clean-chroot-manager for an alternative method.

• install the newly built mesa-git
• run pacman -Syu
• ready

Option B - 2nd best

• revert to repo mesa
• pacman -Syu
• build mesa-git
• switch from mesa to mesa-git
• ready

• choosing which llvm variant to build against

WARNING : aur helpers don't support this method at all. They check .SRCINFO and that doesn't include this variable so it will use the default which is hardcoded to build against repo llvm.

Why would I want to use llvm development versions ?

For full functionality and latest features mesa trunk master needs to be build against llvm trunk master.
If you build against stable llvm things MAY work, but you're likely to lack some features and face stability issues.

Mesa-git uses a custom environment variable MESA_WHICH_LLVM for flexibility.
It has 4 values.
1 : aur llvm-minimal-git
2 : aur llvm-git
3: llvm-git from LordHeavy' unofficial repo
4: llvm from extra repo

I use value 1 95% of the time and set this in ~/.bash_rc .
If MESA_WHICH_LLVM is unset or empty, the default value of 4 (extra llvm) is used.

• main difference with stable repo package

[extra]mesa is a split package, but aur mesa-git isn't.
Basically with aur mesa-git you get everything in one package, while [extra]/mesa allows you to leave out some parts if you don't want/need them.
Having a single package reduces maintenance and makes switching from stable to mesa-git rather easy, though reverting back to stable can be tricky.

• meson settings

Those who compare PKGBUILDs will notice I don't use arch-meson, but meson setup.
I disagree with some of the settings made by arch-meson (especially the buildtype and enabling LTO by default) and feel using meson setup is cleaner.

• how to update

run pacman Syu update non-repo packages for llvm if you use them

build mesa-git, log out , update mesa-git and restart X .

run glxinfo -B to verify basic OpenGL functionality

build lib32-mesa-git

run glxinfo32 -B to verify basic OpenGL functionality for multilib programs

Hi, I have the problem that it supposedly cannot find the directx headers. But I have installed them. What could be the reason?

/bin/bash -c "yay -S --aur mesa-git;echo 'PAKtC'"
AUR Explicit (1): mesa-git-24.0.0_devel.179925.0e481bf4632.d41d8cd-1
:: (1/1) Downloaded PKGBUILD: mesa-git
  1 mesa-git                                 (Build Files Exist)
==> Packages to cleanBuild?
==> [N]one [A]ll [Ab]ort [I]nstalled [No]tInstalled or (1 2 3, 1-3, ^4)
==> 
  1 mesa-git                                 (Build Files Exist)
==> Diffs to show?
==> [N]one [A]ll [Ab]ort [I]nstalled [No]tInstalled or (1 2 3, 1-3, ^4)
==> 
==> Making package: mesa-git 24.0.0_devel.179925.0e481bf4632.d41d8cd-1 (Mi 08 Nov 2023 11:16:35 CET)
==> Retrieving sources...
  -> Cloning mesa git repo...
Cloning into bare repository '/home/deadfire/.cache/yay/mesa-git/mesa'...
remote: Enumerating objects: 2390847, done.
remote: Counting objects: 100% (114833/114833), done.
remote: Compressing objects: 100% (24614/24614), done.
remote: Total 2390847 (delta 108825), reused 91275 (delta 90216), pack-reused 2276014
Receiving objects: 100% (2390847/2390847), 547.76 MiB | 23.84 MiB/s, done.
Resolving deltas: 100% (2072884/2072884), done.
  -> Found LICENSE
==> WARNING: Skipping verification of source file PGP signatures.
==> Validating source files with md5sums...
    mesa ... Skipped
    LICENSE ... Passed
==> Validating source files with sha512sums...
    mesa ... Skipped
    LICENSE ... Passed
:: (1/1) Parsing SRCINFO: mesa-git
==> Making package: mesa-git 24.0.0_devel.179925.0e481bf4632.d41d8cd-1 (Mi 08 Nov 2023 11:17:44 CET)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Updating mesa git repo...
  -> Found LICENSE
==> Validating source files with md5sums...
    mesa ... Skipped
    LICENSE ... Passed
==> Validating source files with sha512sums...
    mesa ... Skipped
    LICENSE ... Passed
==> Removing existing $srcdir/ directory...
==> Extracting sources...
  -> Creating working copy of mesa git repo...
Cloning into 'mesa'...
done.
Switched to a new branch 'makepkg'
==> Starting prepare()...
==> Starting pkgver()...
==> Updated version: mesa-git 24.0.0_devel.180127.9f7e57ce98a.d41d8cd-1
==> Sources are ready.
==> Making package: mesa-git 24.0.0_devel.180127.9f7e57ce98a.d41d8cd-1 (Mi 08 Nov 2023 11:17:51 CET)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> WARNING: Using existing $srcdir/ tree
==> Starting pkgver()...
==> Starting build()...
The Meson build system
Version: 1.2.3
Source dir: /home/deadfire/.cache/yay/mesa-git/src/mesa
Build dir: /home/deadfire/.cache/yay/mesa-git/src/_build
Build type: native build
Project name: mesa
Project version: 24.0.0-devel
C compiler for the host machine: cc (gcc 13.2.1 "cc (GCC) 13.2.1 20230801")
C linker for the host machine: cc ld.bfd 2.41.0
C++ compiler for the host machine: c++ (gcc 13.2.1 "c++ (GCC) 13.2.1 20230801")
C++ linker for the host machine: c++ ld.bfd 2.41.0
Host machine cpu family: x86_64
Host machine cpu: x86_64
Checking if "-mtls-dialect=gnu2" runs: YES
Checking if "split TLSDESC" : links: YES 
Did not find pkg-config by name 'pkg-config'
Found Pkg-config: NO
Found CMake: /usr/bin/cmake (3.27.7)
Run-time dependency directx-headers found: NO (tried pkgconfig and cmake)
Run-time dependency directx-headers found: NO (tried pkgconfig and cmake)
Not looking for a fallback subproject for the dependency DirectX-Headers because:
Use of fallback dependencies is disabled.

mesa/meson.build:542:20: ERROR: Dependency 'DirectX-Headers' is required but not found.

A full log can be found at /home/deadfire/.cache/yay/mesa-git/src/_build/meson-logs/meson-log.txt
==> ERROR: A failure occurred in build().
    Aborting...
 -> error making: mesa-git-exit status 4
 -> Failed to install the following packages. Manual intervention is required:
mesa-git - exit status 4
PAKtC

Still fails to build with vulkan_intel.h': No such file or directory. Using mesa-git instead.

@rjahanbakhshi

Hello,

I would like to propose a modification to the PKGBUILD file. This modification would allow any user to suggest a git commit for reverting, particularly for issues that do not have a patch or for problematic commits.

Given that this is a -git package, I have personally used this patch to revert the commit "28ebe62af2cb38f73790f31dce4b0448268eb2e1". This commit was problematic as it prevented me from playing games such as Alan Wake 2.

This change would be beneficial as it would provide a way for users to contribute to the improvement of the package by suggesting problematic commits for reverting. It would also make the package more adaptable and user-friendly.

Let me know your thoughts.

@@ -14,6 +14,7 @@
 pkgdesc="an open-source implementation of the OpenGL specification, git version"
 pkgver=24.0.0_devel.179925.0e481bf4632.d41d8cd
 pkgrel=1
+_localdir="mesa"
 arch=('x86_64')
 makedepends=('git' 'python-mako' 'xorgproto'
               'libxml2' 'libvdpau' 'libva' 'elfutils' 'libxrandr'
@@ -29,14 +30,14 @@
 conflicts=('mesa' 'opencl-clover-mesa' 'opencl-rusticl-mesa' 'vulkan-intel' 'vulkan-radeon' 'vulkan-mesa-layers' 'libva-mesa-driver' 'mesa-vdpau' 'vulkan-swrast' 'mesa-libgl')
 url="https://www.mesa3d.org"
 license=('custom')
-source=('mesa::git+https://gitlab.freedesktop.org/mesa/mesa.git#branch=main'
+source=("${_localdir}::git+https://gitlab.freedesktop.org/mesa/mesa.git#branch=main"
              'LICENSE'
 )
 md5sums=('SKIP'
          '5c65a0fe315dd347e09b1f2826a1df5a')
 sha512sums=('SKIP'
             '25da77914dded10c1f432ebcbf29941124138824ceecaf1367b3deedafaecabc082d463abcfa3d15abff59f177491472b505bcb5ba0c4a51bb6b93b4721a23c2')
-
+revert_commits=()
 # NINJAFLAGS is an env var used to pass commandline options to ninja
 # NOTE: It's your responbility to validate the value of $NINJAFLAGS. If unsure, don't set it.

@@ -116,6 +117,13 @@
         echo "Applying patch $_patchfile..."
         patch --directory=mesa --forward --strip=1 --input="${srcdir}/${_patchfile}"
     done
+    pushd "${srcdir}/${_localdir}"
+    for commit_id in "${revert_commits[@]}"
+    do
+        echo "Reverting commit: ${commit_id}"
+        git revert --no-commit "${commit_id}"
+    done
+    popd
 }

 build () {

I did some checking and confirmed clover & rusticl now both need spirv-llvm-translator support to build / work .

So we have 2 choices to include rusticl/clover :

• A someone steps up and creates spirv-llvm-translator & libclc packages that work with aur llvm-git

• B drop support for aur llvm-git from this package

Until the time when A or B happen, the only sane approach is to disable both opencl & rusticl.

Yeaah... this completely broke my jellyfin server :-( Not even sure how to fix it myself (what and how to compile the missing components), so swapping back to mainstream repo mesa for time being.

tl;dr : neither rusticl nor opencl are currently possible with this package unless we drop aur llvm-git support.

I don't need llvm-git, so I would personally be fine with using spirv-llvm-translator and libclc from the repos.

If you want that changed : create & maintain spirv-llvm-translator & libclc varaints for llvm-git . I am available for help through email, but am not going to create or maintain them.

I wouldn't be able to maintain it because I use this sporadically to test certain commits/branches. I think the easiest option for me would be to hack the official mesa PKGBUILD to build from git. I need to test a recently merged MR with rusticl and then I will probably switch back to 23.3.0-rc2 unless it fixes my issue.

Both spirv-llvm-translator and libclc need to be build against the same llvm version as mesa-git .

Currently we have

• for repo llvm: spirv-llvm-translator / libclc

• for llvm-minimal-git: spirv-llvm-translator-minimal-git and libclc-minimal-git from AUR

• for Lordheavy versions: libclc-git & spirv-llvm-translor-git from his repo

• for aur llvm-git : no one has created these packages sofar

clover didn't require spirv-llvm-translator last time it was enabled, but that seems to have changed.

tl;dr : neither rusticl nor opencl are currently possible with this package unless we drop aur llvm-git support .

If you want that changed : create & maintain spirv-llvm-translator & libclc varaints for llvm-git . I am available for help through email, but am not going to create or maintain them.

Those that want to use rusticl with mesa trunk & llvm trunk can switch to mesa-minimal-git or lordheavy's versions.

Apparently rusticl doesn't work at all with this package because I can't see a single platform in clinfo (clover):

$ clinfo
Number of platforms                               1
  Platform Name                                   Clover
  Platform Vendor                                 Mesa
  Platform Version                                OpenCL 1.1 Mesa 24.0.0-devel (git-47398c65ee)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd
  Platform Extensions function suffix             MESA

  Platform Name                                   Clover
Number of devices                                 1
  Device Name                                     AMD Radeon Graphics (radeonsi, gfx1103_r1, LLVM 16.0.6, DRM 3.54, 6.6.0-1-mainline)
  Device Vendor                                   AMD
  Device Vendor ID                                0x1002
  Device Version                                  OpenCL 1.1 Mesa 24.0.0-devel (git-47398c65ee)
  Device Numeric Version                          0x401000 (1.1.0)
  Driver Version                                  24.0.0-devel
  Device OpenCL C Version                         OpenCL C 1.1 
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Device Available                                Yes
  Compiler Available                              Yes
  Max compute units                               12
  Max clock frequency                             2799MHz
  Max work item dimensions                        3
  Max work item sizes                             256x256x256
  Max work group size                             256
=== CL_PROGRAM_BUILD_LOG ===
fatal error: cannot open file '/usr/share/clc/gfx1103-amdgcn-mesa-mesa3d.bc': No such file or directory
  Preferred work group size multiple (kernel)     <getWGsizes:1504: create kernel : error -46>
  Preferred / native vector sizes                 
    char                                                16 / 16      
    short                                                8 / 8       
    int                                                  4 / 4       
    long                                                 2 / 2       
    half                                                 0 / 0        (n/a)
    float                                                4 / 4       
    double                                               2 / 2        (cl_khr_fp64)
  Half-precision Floating-point support           (n/a)
  Single-precision Floating-point support         (core)
    Denormals                                     No
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 No
    Round to infinity                             No
    IEEE754-2008 fused multiply-add               No
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  No
  Double-precision Floating-point support         (cl_khr_fp64)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
  Address bits                                    64, Little-Endian
  Global memory size                              33332936704 (31.04GiB)
  Error Correction support                        No
  Max memory allocation                           8333234176 (7.761GiB)
  Unified memory for Host and Device              No
  Minimum alignment for any data type             128 bytes
  Alignment of base address                       32768 bits (4096 bytes)
  Global Memory cache type                        None
  Image support                                   No
  Local memory type                               Local
  Local memory size                               65536 (64KiB)
  Max number of constant args                     16
  Max constant buffer size                        67108864 (64MiB)
  Max size of kernel argument                     1024
  Queue properties                                
    Out-of-order execution                        No
    Profiling                                     Yes
  Profiling timer resolution                      0ns
  Execution capabilities                          
    Run OpenCL kernels                            Yes
    Run native kernels                            No
    ILs with version                              SPIR-V                                                           0x400000 (1.0.0)
  Built-in kernels with version                   (n/a)
  Device Extensions                               cl_khr_byte_addressable_store cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp64 cl_khr_extended_versioning
  Device Extensions with Version                  cl_khr_byte_addressable_store                                    0x400000 (1.0.0)
                                                  cl_khr_global_int32_base_atomics                                 0x400000 (1.0.0)
                                                  cl_khr_global_int32_extended_atomics                             0x400000 (1.0.0)
                                                  cl_khr_local_int32_base_atomics                                  0x400000 (1.0.0)
                                                  cl_khr_local_int32_extended_atomics                              0x400000 (1.0.0)
                                                  cl_khr_int64_base_atomics                                        0x400000 (1.0.0)
                                                  cl_khr_int64_extended_atomics                                    0x400000 (1.0.0)
                                                  cl_khr_fp64                                                      0x400000 (1.0.0)
                                                  cl_khr_extended_versioning                                       0x400000 (1.0.0)

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  Clover
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   Success [MESA]
  clCreateContext(NULL, ...) [default]            Success [MESA]
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  Success (1)
    Platform Name                                 Clover
    Device Name                                   AMD Radeon Graphics (radeonsi, gfx1103_r1, LLVM 16.0.6, DRM 3.54, 6.6.0-1-mainline)
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  Success (1)
    Platform Name                                 Clover
    Device Name                                   AMD Radeon Graphics (radeonsi, gfx1103_r1, LLVM 16.0.6, DRM 3.54, 6.6.0-1-mainline)
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  Success (1)
    Platform Name                                 Clover
    Device Name                                   AMD Radeon Graphics (radeonsi, gfx1103_r1, LLVM 16.0.6, DRM 3.54, 6.6.0-1-mainline)

ICD loader properties
  ICD loader Name                                 OpenCL ICD Loader
  ICD loader Vendor                               OCL Icd free software
  ICD loader Version                              2.3.2
  ICD loader Profile                              OpenCL 3.0

I use RUSTICL_ENABLE=radeonsi and it did work with repo mesa.

Had to uninstall lib32-opencl-rusticl-mesa:

looking for conflicting packages...
:: mesa-git and mesa are in conflict. Remove mesa? [y/N] y
:: mesa-git and vulkan-radeon are in conflict. Remove vulkan-radeon? [y/N] y
:: mesa-git and libva-mesa-driver are in conflict. Remove libva-mesa-driver? [y/N] y
:: mesa-git and mesa-vdpau are in conflict. Remove mesa-vdpau? [y/N] y
:: mesa-git and opencl-rusticl-mesa are in conflict (opencl-mesa). Remove opencl-rusticl-mesa? [y/N] y
error: failed to prepare transaction (could not satisfy dependencies)
:: removing opencl-rusticl-mesa breaks dependency 'opencl-rusticl-mesa' required by lib32-opencl-rusticl-mesa
 -> exit status 1

@maintuner, @deemon,

Added, thanks.