Hi Punit,
On 06/20/2016 11:37 AM, Punit Agrawal wrote:
Jeremy Linton <jeremy.linton@xxxxxxx> writes:
Its possible that an ACPI system has multiple CPU types in it
with differing PMU counters. Use the newly provided acpi_pmu routines
to detect that case, and instantiate more than one set of counters.
Signed-off-by: Jeremy Linton <jeremy.linton@xxxxxxx>
---
drivers/perf/arm_pmu.c | 7 +++-
drivers/perf/arm_pmu_acpi.c | 98 ++++++++++++++++++++-------------------------
2 files changed, 50 insertions(+), 55 deletions(-)
[...]
diff --git a/drivers/perf/arm_pmu_acpi.c b/drivers/perf/arm_pmu_acpi.c
index a257fc0..8f9bea3 100644
--- a/drivers/perf/arm_pmu_acpi.c
+++ b/drivers/perf/arm_pmu_acpi.c
@@ -35,6 +35,11 @@ struct pmu_types {
static struct pmu_irq pmu_irqs[NR_CPUS] __initdata;
+/*
+ * Called from acpi_map_gic_cpu_interface()'s MADT parsing during boot.
+ * This routine saves off the GSI's and their trigger state for use when we are
+ * ready to build the PMU platform device.
+*/
void __init arm_pmu_parse_acpi(int cpu, struct acpi_madt_generic_interrupt *gic)
{
pmu_irqs[cpu].gsi = gic->performance_interrupt;
This hunk should be in Patch 3.
Ok...
@@ -47,7 +52,7 @@ void __init arm_pmu_parse_acpi(int cpu, struct acpi_madt_generic_interrupt *gic)
}
/* Count number and type of CPU cores in the system. */
-void __init arm_pmu_acpi_determine_cpu_types(struct pmu_types *pmus)
+static void __init arm_pmu_acpi_determine_cpu_types(struct pmu_types *pmus)
{
int i, j;
Please move this and the following two hunks to the previous patch where you
introduce the functions.
Oh, I did this on purpose to avoid:
"warning: 'xxx' defined but not used" messages.
@@ -74,7 +79,7 @@ void __init arm_pmu_acpi_determine_cpu_types(struct pmu_types *pmus)
* Registers the group of PMU interfaces which corrispond to the 'last_cpu_id'.
* This group utlizes 'count' resources in the 'res'.
*/
-int __init arm_pmu_acpi_register_pmu(int count, struct resource *res,
+static int __init arm_pmu_acpi_register_pmu(int count, struct resource *res,
--
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