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arm_mpam: Move MPAMF_ECR write helpers to allow reuse

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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>
Tested-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
This commit is contained in:
Ben Horgan 2026-09-17 15:56:06 +01:00 committed by James Morse
parent eb0fde98fe
commit 63b3495c3d
1 changed files with 19 additions and 19 deletions
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38
drivers/resctrl/mpam_devices.c
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@ -1817,6 +1817,25 @@ 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;
@ -2443,25 +2462,6 @@ 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;