From: "Naveen N Rao (AMD)" <naveen@kernel.org>
To: <x86@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Nikunj A Dadhania <nikunj@amd.com>,
Manali Shukla <manali.shukla@amd.com>,
Bharata B Rao <bharata@amd.com>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 0/3] Support additional AMD EILVT registers
Date: Tue, 12 May 2026 19:49:14 +0530 [thread overview]
Message-ID: <cover.1778594390.git.naveen@kernel.org> (raw)
This is v2 of the series posted at:
http://lore.kernel.org/r/cover.1775019269.git.naveen@kernel.org
Changes since v1:
- Drop the first two patches that were merged
- Call init_eilvt() from apic_bsp_setup(), rather than
setup_local_APIC() so as not to call an __init function from a
non-init function. (Kernel 0-day bot)
- Initialize eilvt count to APIC_EILVT_NR_AMD_10H and allocate
eilvt_offsets array only on AMD processors.
Manali,
I am retaining your Tested-by: tag since the changes are minimal, but
please reply here if you have concerns with the changes.
--
Future AMD processors will be increasing the number of APIC EILVT
registers (*). This series adds support for the same along with some
related cleanups.
(*) https://docs.amd.com/v/u/en-US/69205_1.00_AMD64_IBS_PUB)
- Naveen
Naveen N Rao (AMD) (3):
perf/amd/ibs: Limit the max EILVT register count for AMD family 0x10
x86/apic: Introduce a variable to track the number of EILVT registers
x86/apic: Drop APIC_EILVT_NR_MAX and switch to using apic_eilvt_count
arch/x86/include/asm/apic.h | 2 ++
arch/x86/include/asm/apicdef.h | 2 +-
arch/x86/events/amd/ibs.c | 4 ++--
arch/x86/kernel/apic/apic.c | 19 +++++++++++++++++--
4 files changed, 22 insertions(+), 5 deletions(-)
base-commit: 70e7aca9f7ff4d1bee94c5b04973c3dbca1dba00
--
2.54.0
next reply other threads:[~2026-05-12 14:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 14:19 Naveen N Rao (AMD) [this message]
2026-05-12 14:19 ` [PATCH v2 1/3] perf/amd/ibs: Limit the max EILVT register count for AMD family 0x10 Naveen N Rao (AMD)
2026-05-12 14:19 ` [PATCH v2 2/3] x86/apic: Introduce a variable to track the number of EILVT registers Naveen N Rao (AMD)
2026-05-12 14:19 ` [PATCH v2 3/3] x86/apic: Drop APIC_EILVT_NR_MAX and switch to using apic_eilvt_count Naveen N Rao (AMD)
2026-05-13 6:03 ` [PATCH v2 0/3] Support additional AMD EILVT registers Bharata B Rao
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