[PATCH v2 0/2] lib: sbi_pmu: propagate hardware counter errors

From: Sebastian Alba Vives <sebasjosue84@gmail.com>
To: opensbi@lists.infradead.org
Cc: anup.patel@oss.qualcomm.com, pengpeng@iscas.ac.cn,
	hppiscas@163.com, Sebastian Alba Vives <sebasjosue84@gmail.com>
Subject: [PATCH v2 0/2] lib: sbi_pmu: propagate hardware counter errors
Date: Sun, 25 Oct 2026 08:53:36 -0600	[thread overview]
Message-ID: <20261025145338.2569358-1-sebasjosue84@gmail.com> (raw)

The two patches Anup asked for in the thread for Pengpeng Hou's
SKIP_MATCH class check. v1 is at

  https://lore.kernel.org/r/20261025062836.2445655-1-sebasjosue84@gmail.com

Changes in v2:
 - patch 1: propagate SBI_EALREADY_STARTED as well, per Anup's review.
   An already running counter may have been configured for a different
   event previously, so the configure must not report success. The
   commit message was reworked around that and the special case is gone.
 - patch 2: unchanged except for the context line that patch 1 touches.
   Picked up Anup's Reviewed-by.

They stay a series because both touch the same if block in
sbi_pmu_ctr_cfg_match() and the second does not apply without the first.

Built clean for rv64 and rv32, PLATFORM=generic, no new warnings.

Sebastian Alba Vives (2):
  lib: sbi_pmu: do not ignore pmu_ctr_start_hw() error in cfg_match
  lib: sbi_pmu: reject out-of-bounds counter index in pmu_ctr_write_hw()

 lib/sbi/sbi_pmu.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

-- 
2.43.0

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