Changes in ibs.h

33c66eb5e9844429911bf5478c96c60f9f8af9d0 - Merge tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Tue, 14 Apr 2026 22:22:40 +0200

Merge tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull performance events updates from Ingo Molnar: "Core updates: - Try to allocate task_ctx_data quickly, to optimize O(N^2) algorithm on large systems with O(100k) threads (Namhyung Kim) AMD PMU driver IBS support updates and fixes, by Ravi Bangoria: - Fix interrupt accounting for discarded samples - Fix a Zen5-specific quirk - Fix PhyAddrVal handling - Fix NMI-safety with perf_allow_kernel() - Fix a race between event add and NMIs Intel PMU driver updates: - Only check GP counters for PEBS constraints validation (Dapeng Mi) MSR driver: - Turn SMI_COUNT and PPERF on by default, instead of a long list of CPU models to enable them on (Kan Liang) ... and misc cleanups and fixes by Aldf Conte, Anshuman Khandual, Namhyung Kim, Ravi Bangoria and Yen-Hsiang Hsu"* tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/events: Replace READ_ONCE() with standard pgtable accessors perf/x86/msr: Make SMI and PPERF on by default perf/x86/intel/p4: Fix unused variable warning in p4_pmu_init() perf/x86/intel: Only check GP counters for PEBS constraints validation perf/x86/amd/ibs: Fix comment typo in ibs_op_data perf/amd/ibs: Advertise remote socket capability perf/amd/ibs: Enable streaming store filter perf/amd/ibs: Enable RIP bit63 hardware filtering perf/amd/ibs: Enable fetch latency filtering perf/amd/ibs: Support IBS_{FETCH|OP}_CTL2[Dis] to eliminate RMW race perf/amd/ibs: Add new MSRs and CPUID bits definitions perf/amd/ibs: Define macro for ldlat mask and shift perf/amd/ibs: Avoid race between event add and NMI perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler perf/amd/ibs: Preserve PhyAddrVal bit when clearing PhyAddr MSR perf/amd/ibs: Limit ldlat->l3missonly dependency to Zen5 perf/amd/ibs: Account interrupt for discarded samples perf/core: Simplify __detach_global_ctx_data() perf/core: Try to allocate task_ctx_data quickly perf/core: Pass GFP flags to attach_task_ctx_data() List of files: /linux/tools/arch/x86/include/asm/amd/ibs.h

73cee0aad1ee2479fde2c9b753a1b66acb7d1b9a - perf/x86/amd/ibs: Fix comment typo in ibs_op_data

Tue, 13 Jan 2026 15:18:30 +0100

perf/x86/amd/ibs: Fix comment typo in ibs_op_dataThe comment for tag_to_ret_ctr in ibs_op_data says "15-31"but it should be "16-31".Fix the misleading comment. No functional changes.Signed-off-by: Yen-Hsiang Hsu Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Borislav Petkov (AMD) Link: https://patch.msgid.link/20260113141830.3204114-1-rrrrr4413@gmail.com List of files: /linux/tools/arch/x86/include/asm/amd/ibs.h

0693907ffaca001036009bc82dc334fb8e11540f - tools headers UAPI: Update tools' copy of linux/coresight-pmu.h

Thu, 05 Mar 2026 21:28:44 +0100

tools headers UAPI: Update tools' copy of linux/coresight-pmu.hTo get the comment changes in this commit: 171efc70097a9f5f ("x86/ibs: Fix typo in dc_l2tlb_miss comment")This silences this perf build warning: Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/amd/ibs.h arch/x86/include/asm/amd/ibs.hSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux/tools/arch/x86/include/asm/amd/ibs.h

bb6b4143503750318a3f85975186db899a3caaf2 - tools arch amd ibs: Sync ibs.h with the kernel sources

Thu, 12 Jun 2025 23:08:40 +0200

tools arch amd ibs: Sync ibs.h with the kernel sourcesTo pick up the changes from: 861c6b1185fbb2e3 ("x86/platform/amd: Add standard header guards to ")A small change to tools/perf/check-headers.sh was made to cope with themove of this header done in: 3846389c03a85188 ("x86/platform/amd: Move the header to ")That don't result in any changes in the tools, just address this perfbuild warning:Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/amd/ibs.h arch/x86/include/asm/amd/ibs.hCc: Adrian Hunter Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Link: https://lore.kernel.org/r/aEtCi0pup5FEwnzn@x1Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux/tools/arch/x86/include/asm/amd/ibs.h

c1ab4ce3cb759f69fb9085a060e568b73e8f5cd8 - tools/arch/x86: Move the header to

Tue, 06 May 2025 13:41:43 +0200

tools/arch/x86: Move the header to Synchronize with what we did with the kernel side header in: 3846389c03a8 ("x86/platform/amd: Move the header to ")Reported-by: Stephen Rothwell Signed-off-by: Ingo Molnar Cc: linux-kernel@vger.kernel.org List of files: /linux/tools/arch/x86/include/asm/amd/ibs.h