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authorMaxime Ripard <maxime@cerno.tech>2021-05-11 13:35:52 +0200
committerMaxime Ripard <maxime@cerno.tech>2021-05-11 13:35:52 +0200
commitc55b44c9386f3ee1b08752638559f19deaf6040d (patch)
treec843a21f45180387fcd9eb2625cc9d1f166a3156 /drivers/perf/arm_pmu_platform.c
parentMAINTAINERS: Update my e-mail (diff)
parentLinux 5.13-rc1 (diff)
downloadlinux-c55b44c9386f3ee1b08752638559f19deaf6040d.tar.xz
linux-c55b44c9386f3ee1b08752638559f19deaf6040d.zip
Merge drm/drm-fixes into drm-misc-fixes
Start this new release drm-misc-fixes branch Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/perf/arm_pmu_platform.c')
-rw-r--r--drivers/perf/arm_pmu_platform.c54
1 files changed, 25 insertions, 29 deletions
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 933bd8410fc2..513de1f54e2d 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -6,6 +6,7 @@
* Copyright (C) 2010 ARM Ltd., Will Deacon <will.deacon@arm.com>
*/
#define pr_fmt(fmt) "hw perfevents: " fmt
+#define dev_fmt pr_fmt
#include <linux/bug.h>
#include <linux/cpumask.h>
@@ -62,7 +63,7 @@ static bool pmu_has_irq_affinity(struct device_node *node)
return !!of_find_property(node, "interrupt-affinity", NULL);
}
-static int pmu_parse_irq_affinity(struct device_node *node, int i)
+static int pmu_parse_irq_affinity(struct device *dev, int i)
{
struct device_node *dn;
int cpu;
@@ -72,19 +73,18 @@ static int pmu_parse_irq_affinity(struct device_node *node, int i)
* affinity matches our logical CPU order, as we used to assume.
* This is fragile, so we'll warn in pmu_parse_irqs().
*/
- if (!pmu_has_irq_affinity(node))
+ if (!pmu_has_irq_affinity(dev->of_node))
return i;
- dn = of_parse_phandle(node, "interrupt-affinity", i);
+ dn = of_parse_phandle(dev->of_node, "interrupt-affinity", i);
if (!dn) {
- pr_warn("failed to parse interrupt-affinity[%d] for %pOFn\n",
- i, node);
+ dev_warn(dev, "failed to parse interrupt-affinity[%d]\n", i);
return -EINVAL;
}
cpu = of_cpu_node_to_id(dn);
if (cpu < 0) {
- pr_warn("failed to find logical CPU for %pOFn\n", dn);
+ dev_warn(dev, "failed to find logical CPU for %pOFn\n", dn);
cpu = nr_cpu_ids;
}
@@ -98,19 +98,18 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
int i = 0, num_irqs;
struct platform_device *pdev = pmu->plat_device;
struct pmu_hw_events __percpu *hw_events = pmu->hw_events;
+ struct device *dev = &pdev->dev;
num_irqs = platform_irq_count(pdev);
- if (num_irqs < 0) {
- pr_err("unable to count PMU IRQs\n");
- return num_irqs;
- }
+ if (num_irqs < 0)
+ return dev_err_probe(dev, num_irqs, "unable to count PMU IRQs\n");
/*
* In this case we have no idea which CPUs are covered by the PMU.
* To match our prior behaviour, we assume all CPUs in this case.
*/
if (num_irqs == 0) {
- pr_warn("no irqs for PMU, sampling events not supported\n");
+ dev_warn(dev, "no irqs for PMU, sampling events not supported\n");
pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
cpumask_setall(&pmu->supported_cpus);
return 0;
@@ -122,10 +121,8 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
return pmu_parse_percpu_irq(pmu, irq);
}
- if (nr_cpu_ids != 1 && !pmu_has_irq_affinity(pdev->dev.of_node)) {
- pr_warn("no interrupt-affinity property for %pOF, guessing.\n",
- pdev->dev.of_node);
- }
+ if (nr_cpu_ids != 1 && !pmu_has_irq_affinity(dev->of_node))
+ dev_warn(dev, "no interrupt-affinity property, guessing.\n");
for (i = 0; i < num_irqs; i++) {
int cpu, irq;
@@ -135,18 +132,18 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
continue;
if (irq_is_percpu_devid(irq)) {
- pr_warn("multiple PPIs or mismatched SPI/PPI detected\n");
+ dev_warn(dev, "multiple PPIs or mismatched SPI/PPI detected\n");
return -EINVAL;
}
- cpu = pmu_parse_irq_affinity(pdev->dev.of_node, i);
+ cpu = pmu_parse_irq_affinity(dev, i);
if (cpu < 0)
return cpu;
if (cpu >= nr_cpu_ids)
continue;
if (per_cpu(hw_events->irq, cpu)) {
- pr_warn("multiple PMU IRQs for the same CPU detected\n");
+ dev_warn(dev, "multiple PMU IRQs for the same CPU detected\n");
return -EINVAL;
}
@@ -191,9 +188,8 @@ int arm_pmu_device_probe(struct platform_device *pdev,
const struct of_device_id *of_table,
const struct pmu_probe_info *probe_table)
{
- const struct of_device_id *of_id;
armpmu_init_fn init_fn;
- struct device_node *node = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
struct arm_pmu *pmu;
int ret = -ENODEV;
@@ -207,15 +203,14 @@ int arm_pmu_device_probe(struct platform_device *pdev,
if (ret)
goto out_free;
- if (node && (of_id = of_match_node(of_table, pdev->dev.of_node))) {
- init_fn = of_id->data;
-
- pmu->secure_access = of_property_read_bool(pdev->dev.of_node,
+ init_fn = of_device_get_match_data(dev);
+ if (init_fn) {
+ pmu->secure_access = of_property_read_bool(dev->of_node,
"secure-reg-access");
/* arm64 systems boot only as non-secure */
if (IS_ENABLED(CONFIG_ARM64) && pmu->secure_access) {
- pr_warn("ignoring \"secure-reg-access\" property for arm64\n");
+ dev_warn(dev, "ignoring \"secure-reg-access\" property for arm64\n");
pmu->secure_access = false;
}
@@ -226,7 +221,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
}
if (ret) {
- pr_info("%pOF: failed to probe PMU!\n", node);
+ dev_err(dev, "failed to probe PMU!\n");
goto out_free;
}
@@ -235,15 +230,16 @@ int arm_pmu_device_probe(struct platform_device *pdev,
goto out_free_irqs;
ret = armpmu_register(pmu);
- if (ret)
- goto out_free;
+ if (ret) {
+ dev_err(dev, "failed to register PMU devices!\n");
+ goto out_free_irqs;
+ }
return 0;
out_free_irqs:
armpmu_free_irqs(pmu);
out_free:
- pr_info("%pOF: failed to register PMU devices!\n", node);
armpmu_free(pmu);
return ret;
}