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 01/11] arm_mpam: Move MPAMF_ECR write helpers to allow reuse
Date: Fri, 10 Jul 2026 12:55:35 +0100 [thread overview]
Message-ID: <20260710115546.29644-2-ben.horgan@arm.com> (raw)
In-Reply-To: <20260710115546.29644-1-ben.horgan@arm.com>
In preparation for calling mpam_enable_msc_ecr() from the CPU hotplug
handlers move it higher in the file. Move mpam_disable_msc_ecr() too to
keep them together.
Signed-off-by: Ben Horgan <ben.horgan@arm.com>
---
drivers/resctrl/mpam_devices.c | 38 +++++++++++++++++-----------------
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/resctrl/mpam_devices.c b/drivers/resctrl/mpam_devices.c
index b69f99488111..82966ca2a631 100644
--- a/drivers/resctrl/mpam_devices.c
+++ b/drivers/resctrl/mpam_devices.c
@@ -1813,6 +1813,25 @@ static void mpam_reprogram_msc(struct mpam_msc *msc)
mutex_unlock(&msc->cfg_lock);
}
+static int mpam_enable_msc_ecr(void *_msc)
+{
+ struct mpam_msc *msc = _msc;
+
+ __mpam_write_reg(msc, MPAMF_ECR, MPAMF_ECR_INTEN);
+
+ return 0;
+}
+
+/* This can run in mpam_disable(), and the interrupt handler on the same CPU */
+static int mpam_disable_msc_ecr(void *_msc)
+{
+ struct mpam_msc *msc = _msc;
+
+ __mpam_write_reg(msc, MPAMF_ECR, 0);
+
+ return 0;
+}
+
static void _enable_percpu_irq(void *_irq)
{
int *irq = _irq;
@@ -2435,25 +2454,6 @@ static char *mpam_errcode_names[16] = {
[12 ... 15] = "Reserved"
};
-static int mpam_enable_msc_ecr(void *_msc)
-{
- struct mpam_msc *msc = _msc;
-
- __mpam_write_reg(msc, MPAMF_ECR, MPAMF_ECR_INTEN);
-
- return 0;
-}
-
-/* This can run in mpam_disable(), and the interrupt handler on the same CPU */
-static int mpam_disable_msc_ecr(void *_msc)
-{
- struct mpam_msc *msc = _msc;
-
- __mpam_write_reg(msc, MPAMF_ECR, 0);
-
- return 0;
-}
-
static irqreturn_t __mpam_irq_handler(int irq, struct mpam_msc *msc)
{
u64 reg;
--
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 ` Ben Horgan [this message]
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 ` [PATCH v1 03/11] arm_mpam: Set mpam_feat_msmon_mbwu_31counter when there are bandwidth counters Ben Horgan
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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