From: Eunok Jo <eunok25.jo@samsung.com>
Date: Fri, 11 Nov 2016 09:23:34 +0000 (+0900)
Subject: Set CPU Affinity for handling interrupt
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=56cebf1ca151b8e0168149573b209ee0314dce97;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

Set CPU Affinity for handling interrupt

When HMP for exynos series is enabled, cpu affinity for
handling interrupt will be set only for little cores.
Otherwise, all cores can catch interrupt and handle it.

Change-Id: Id6a37fd0e7e97ed240c94f47c91d096b5f5211cd
Signed-off-by: Eunok Jo <eunok25.jo@samsung.com>
---

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 27708c91c5a6..ed3a7d169886 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -27,6 +27,7 @@
 #include <linux/of_dma.h>
 #include <linux/err.h>
 #include <linux/pm_runtime.h>
+#include <linux/cpumask.h>
 
 #include "dmaengine.h"
 #ifdef CONFIG_EXYNOS_PD
@@ -3100,7 +3101,11 @@ static int pl330_resume(struct device *dev)
 		for (i = 0; i < AMBA_NR_IRQS; i++) {
 			int irq = pl330->irqnum_having_multi[i];
 			if (irq)
+#if defined(CONFIG_SCHED_HMP)
+				irq_set_affinity(irq, &hmp_slow_cpu_mask);
+#else
 				irq_set_affinity(irq, cpu_all_mask);
+#endif
 			else
 				break;
 		}
@@ -3182,7 +3187,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 				return ret;
 
 			if(pl330->multi_irq) {
+#if defined(CONFIG_SCHED_HMP)
+				irq_set_affinity(irq, &hmp_slow_cpu_mask);
+#else
 				irq_set_affinity(irq, cpu_all_mask);
+#endif
 				pl330->irqnum_having_multi[count_irq++] = irq;
 			}
 		} else {