[AMDGPU] Emit s_barrier_signal for s.barrier.signal.var when able (#191028)
When the member count is 0 (which causes the barrier's member count to
be re-used from a previous barrier initialization or
s.barrier.signal.var) and the barrier is constant, we can represent
named barrier signaling with the m0-less form. Enable this behavior.
Assisted by Opus 4.6 which drafted the initial implementation.
[mlir][XeGPUToXeVM][XeVMToLLVM] Update the default cache-control values. (#190954)
In XeGPU, user can provide cache control value for only certain levels,
they do not have to provide cache-control value for all levels. However,
XeVM requires that each cache level must have a cache-control value. To
solve this issue, XeGPUToXeVM conversion pass adds default value to
cache-levels that does not have a user-provided cache-control value.
This PR updates this process in the following way:
- If no cache-control hint is provided for any levels, use system
default (USE_DEFAULT).
- If any of the levels has at least one cache-control value, use certain
default value for other levels.
If system default (USE_DEFAULT) is used, no cache-control metadata
annotation is necessary.
net/ucx: Fix mm signal socket binding on FreeBSD
Replace Linux-style UNIX domain socket autobind logic in the mm
signaling path with explicit pathname-based binding on FreeBSD and
remove the socket path during cleanup.
This fixes FreeBSD runtime failures in the mm shared-memory signaling
path.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
(cherry picked from commit db6d744b60348636c7a87c3c7fc181afd9b71994)
net/ucx: Fix FreeBSD UCM relocation handling
On FreeBSD, dynamic-section pointers observed through dl_iterate_phdr()
for shared objects need to be rebased by dlpi_addr before dereference.
Also fix the PT_LOAD end range calculation to include the object base
address when tracking the library address span.
This fixes runtime failures in UCM relocation patching on FreeBSD.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
(cherry picked from commit 94fc6d9ffebbad5014a7f48ba925b9a39df8478f)
net/ucx: Harden async thread state handling
Avoid dereferencing the global async thread context when startup or
teardown did not complete successfully by returning UCS_ERR_NO_ELEM for
operations that require an active thread and by only publishing thread_p
on successful start.
This prevents invalid access paths during async thread error handling.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
(cherry picked from commit 1ef58f980f422e30804818df7dadd3c1da3dace0)
net/ucx: Fix FreeBSD runtime portability issues
Adjust several Linux-specific runtime assumptions in UCX for FreeBSD:
- use FreeBSD-specific network interface handling where Linux sysfs logic
is not available
- avoid Linux-only IPOIB and bridge detection paths
- improve pthread_create() error reporting
- provide FreeBSD fallbacks for memory remapping and affinity helpers
This fixes multiple runtime failures and device discovery issues on FreeBSD.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
(cherry picked from commit 601e614318cdfbb381bcb7a9841353720feb53a9)
[libc] Remove yet another batch of header template files (#191067)
This follows up on ae63230c23151c16ba68d5213da8bd5459c03a40 and remove
header templates from more C/POSIX standard headers, where templates
only used to `#include` files with macro definitions. We add this logic
to YAML instead - add entries to the `macros` list that point to the
correct `macro_header` to ensure it would be included.
net/ucx: Fix mm signal socket binding on FreeBSD
Replace Linux-style UNIX domain socket autobind logic in the mm
signaling path with explicit pathname-based binding on FreeBSD and
remove the socket path during cleanup.
This fixes FreeBSD runtime failures in the mm shared-memory signaling
path.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
: Update =>
Changelog:
PR:
Sponsored by: UNIS Labs
net/ucx: Fix FreeBSD UCM relocation handling
On FreeBSD, dynamic-section pointers observed through dl_iterate_phdr()
for shared objects need to be rebased by dlpi_addr before dereference.
Also fix the PT_LOAD end range calculation to include the object base
address when tracking the library address span.
This fixes runtime failures in UCM relocation patching on FreeBSD.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
net/ucx: Harden async thread state handling
Avoid dereferencing the global async thread context when startup or
teardown did not complete successfully by returning UCS_ERR_NO_ELEM for
operations that require an active thread and by only publishing thread_p
on successful start.
This prevents invalid access paths during async thread error handling.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
net/ucx: Fix FreeBSD runtime portability issues
Adjust several Linux-specific runtime assumptions in UCX for FreeBSD:
- use FreeBSD-specific network interface handling where Linux sysfs logic
is not available
- avoid Linux-only IPOIB and bridge detection paths
- improve pthread_create() error reporting
- provide FreeBSD fallbacks for memory remapping and affinity helpers
This fixes multiple runtime failures and device discovery issues on FreeBSD.
PR: 293867
Sponsored by: UNIS Labs
MFH: 2026Q2
[libc][MacOS] Enable wchar conversion and rpc_server (#191065)
Originally the wchar conversion was disabled due to MacOS not providing
uchar.h. We only needed it for char32_t so this PR just provides it
directly from our headers on MacOS. This also fixes fwrite_unlocked not
being available on MacOS which is needed for rpc_server.h.
