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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


             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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