From 418ef2094eb8b0916d6cbda10e2ab857b9f64d97 Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Sun, 7 Oct 2007 07:35:45 +1000 Subject: [PATCH] [POWERPC] PS3: os-area workqueue processing Add a workqueue to the PS3 os-area support. This is needed to support writing updates to flash memory and to update the /proc device tree entries from the timer tick interrupt context. Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/ps3/os-area.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index f5112248802..db311a147c2 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -20,6 +20,7 @@ #include #include +#include #include @@ -186,6 +187,28 @@ static int __init verify_header(const struct os_area_header *header) return 0; } +/** + * os_area_queue_work_handler - Asynchronous write handler. + * + * An asynchronous write for flash memory and the device tree. Do not + * call directly, use os_area_queue_work(). + */ + +static void os_area_queue_work_handler(struct work_struct *work) +{ + pr_debug(" -> %s:%d\n", __func__, __LINE__); + + pr_debug(" <- %s:%d\n", __func__, __LINE__); +} + +static void os_area_queue_work(void) +{ + static DECLARE_WORK(q, os_area_queue_work_handler); + + wmb(); + schedule_work(&q); +} + /** * ps3_os_area_save_params - Copy data from os area mirror to @saved_params. * -- 2.41.0