From: Ben Horgan <ben.horgan@arm.com>
To: ben.horgan@arm.com
Cc: james.morse@arm.com, reinette.chatre@intel.com,
fenghuay@nvidia.com, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, dave.martin@arm.com,
andre.przywara@arm.com
Subject: [PATCH v1 03/11] arm_mpam: Set mpam_feat_msmon_mbwu_31counter when there are bandwidth counters
Date: Fri, 10 Jul 2026 12:55:37 +0100 [thread overview]
Message-ID: <20260710115546.29644-4-ben.horgan@arm.com> (raw)
In-Reply-To: <20260710115546.29644-1-ben.horgan@arm.com>
If there are memory bandwidth counters then there are 31 bit counters even
if there are also 44 bit counters or 63 bit counters.
Set the 31 bit bandwidth counter feature bit whenever there are bandwidth
counters.
Fixes: fdc29a141d63 ("arm_mpam: Probe for long/lwd mbwu counters")
Signed-off-by: Ben Horgan <ben.horgan@arm.com>
---
drivers/resctrl/mpam_devices.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/resctrl/mpam_devices.c b/drivers/resctrl/mpam_devices.c
index acfa9a4dc2fc..11b10c3bc334 100644
--- a/drivers/resctrl/mpam_devices.c
+++ b/drivers/resctrl/mpam_devices.c
@@ -930,9 +930,9 @@ static void mpam_ris_hw_probe(struct mpam_msc_ris *ris)
mpam_set_feature(mpam_feat_msmon_mbwu_63counter, props);
else
mpam_set_feature(mpam_feat_msmon_mbwu_44counter, props);
- } else {
- mpam_set_feature(mpam_feat_msmon_mbwu_31counter, props);
}
+
+ mpam_set_feature(mpam_feat_msmon_mbwu_31counter, props);
}
}
}
--
2.43.0
next prev parent reply other threads:[~2026-07-10 11:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-10 11:55 [PATCH v1 00/11] arm_mpam: minor fixes at v7.2 Ben Horgan
2026-07-10 11:55 ` [PATCH v1 01/11] arm_mpam: Move MPAMF_ECR write helpers to allow reuse Ben Horgan
2026-07-10 11:55 ` [PATCH v1 02/11] arm_mpam: Restore the error interrupt enable from mpam_cpu_online() Ben Horgan
2026-07-10 11:55 ` Ben Horgan [this message]
2026-07-10 11:55 ` [PATCH v1 04/11] arm_mpam: Add missing mon_sel locking in MBWU restore Ben Horgan
2026-07-10 11:55 ` [PATCH v1 05/11] arm_mpam: Ensure MBWU counters are reset on restore Ben Horgan
2026-07-10 11:55 ` [PATCH v1 06/11] arm_mpam: Use __ris_msmon_read() for saving MBWU state Ben Horgan
2026-07-10 11:55 ` [PATCH v1 07/11] arm_mpam: Initialize all of struct mon_read in mpam_restore_mbwu_state() Ben Horgan
2026-07-10 11:55 ` [PATCH v1 08/11] arm_mpam: resctrl: Correct check that existing class is L3 Ben Horgan
2026-07-10 11:55 ` [PATCH v1 09/11] arm_mpam: resctrl: Make read_mon_cdp_safe() self consistent Ben Horgan
2026-07-10 11:55 ` [PATCH v1 10/11] arm_mpam: Don't loop forever if there is the maximum possible amount of PARTIDs Ben Horgan
2026-07-10 11:55 ` [PATCH v1 11/11] arm_mpam: Switch to kvzmalloc_objs() for allocation of component cfg Ben Horgan
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