Merge remote-tracking branches 'spi/fix/dw', 'spi/fix/orion', 'spi/fix/pl022', 'spi...

[cascardo/linux.git] / arch / arc / kernel / perf_event.c

diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
index b9a5685..ae1c485 100644 (file)
--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -244,25 +244,23 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
                pr_err("This core does not have performance counters!\n");
                return -ENODEV;
        }
+       BUG_ON(pct_bcr.c > ARC_PMU_MAX_HWEVENTS);
 
-       arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu),
-                              GFP_KERNEL);
+       READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
+       if (!cc_bcr.v) {
+               pr_err("Performance counters exist, but no countable conditions?\n");
+               return -ENODEV;
+       }
+
+       arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu), GFP_KERNEL);
        if (!arc_pmu)
                return -ENOMEM;
 
        arc_pmu->n_counters = pct_bcr.c;
-       BUG_ON(arc_pmu->n_counters > ARC_PMU_MAX_HWEVENTS);
-
        arc_pmu->counter_size = 32 + (pct_bcr.s << 4);
-       pr_info("ARC PMU found with %d counters of size %d bits\n",
-               arc_pmu->n_counters, arc_pmu->counter_size);
-
-       READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
-
-       if (!cc_bcr.v)
-               pr_err("Strange! Performance counters exist, but no countable conditions?\n");
 
-       pr_info("ARC PMU has %d countable conditions\n", cc_bcr.c);
+       pr_info("ARC perf\t: %d counters (%d bits), %d countable conditions\n",
+               arc_pmu->n_counters, arc_pmu->counter_size, cc_bcr.c);
 
        cc_name.str[8] = 0;
        for (i = 0; i < PERF_COUNT_HW_MAX; i++)