You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From 33b7977ba754b6ec4e65aaae34de92d4086ea0bd Mon Sep 17 00:00:00 2001
|
|
From: Roy Pledge <roy.pledge@nxp.com>
|
|
Date: Wed, 13 Sep 2017 17:03:06 -0400
|
|
Subject: [PATCH] soc: fsl: dpio: Prefer the CPU affine DPIO
|
|
|
|
Use the cpu affine DPIO unless there isn't one which can happen
|
|
if less DPIOs than cores are assign to the kernel.
|
|
|
|
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
|
|
---
|
|
drivers/soc/fsl/dpio/dpio-service.c | 6 +++++-
|
|
1 file changed, 5 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/soc/fsl/dpio/dpio-service.c
|
|
+++ b/drivers/soc/fsl/dpio/dpio-service.c
|
|
@@ -58,7 +58,7 @@ static inline struct dpaa2_io *service_s
|
|
* If cpu == -1, choose the current cpu, with no guarantees about
|
|
* potentially being migrated away.
|
|
*/
|
|
- if (unlikely(cpu < 0))
|
|
+ if (cpu < 0)
|
|
cpu = smp_processor_id();
|
|
|
|
/* If a specific cpu was requested, pick it up immediately */
|
|
@@ -70,6 +70,10 @@ static inline struct dpaa2_io *service_s
|
|
if (d)
|
|
return d;
|
|
|
|
+ d = service_select_by_cpu(d, -1);
|
|
+ if (d)
|
|
+ return d;
|
|
+
|
|
spin_lock(&dpio_list_lock);
|
|
d = list_entry(dpio_list.next, struct dpaa2_io, node);
|
|
list_del(&d->node);
|