From: geoffrey.levand@am•sony.com
To: paulus@samba•org
Cc: linuxppc-dev@ozlabs•org
Subject: [patch 3/6] PS3: os-area workqueue processing
Date: Sat, 06 Oct 2007 14:35:45 -0700 [thread overview]
Message-ID: <20071006213542.684568871@am.sony.com> (raw)
In-Reply-To: 20071006213542.311447584@am.sony.com
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 <geoffrey.levand@am•sony.com>
---
arch/powerpc/platforms/ps3/os-area.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -20,6 +20,7 @@
#include <linux/kernel.h>
#include <linux/io.h>
+#include <linux/workqueue.h>
#include <asm/lmb.h>
@@ -187,6 +188,28 @@ static int __init verify_header(const st
}
/**
+ * 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.
*
* For the convenience of the guest, the HV makes a copy of the os area in
--
next prev parent reply other threads:[~2007-10-06 21:38 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-06 21:35 [patch 0/6] PS3 os area patches for 2.6.24 geoffrey.levand
2007-10-06 21:35 ` [patch 1/6] PS3: Cleanup of os-area.c geoffrey.levand
2007-10-06 21:35 ` [patch 2/6] PS3: Remove unused os-area params geoffrey.levand
2007-10-08 14:00 ` Ranulf Doswell
2007-10-08 17:53 ` Geoff Levand
2007-10-08 22:38 ` Ranulf Doswell
2007-10-08 22:50 ` Geoff Levand
2007-10-06 21:35 ` geoffrey.levand [this message]
2007-10-06 21:35 ` [patch 4/6] PS3: Add os-area rtc_diff set/get routines geoffrey.levand
2007-10-06 21:35 ` [patch 5/6] PS3: Save os-area params to device tree geoffrey.levand
2007-10-06 21:35 ` [patch 6/6] PS3: Add os-area database routines geoffrey.levand
2007-10-08 8:27 ` Geert Uytterhoeven
2007-10-09 1:08 ` Geoff Levand
2007-10-08 12:16 ` Geert Uytterhoeven
2007-10-09 1:12 ` Geoff Levand
2007-10-08 13:48 ` Ranulf Doswell
2007-10-08 17:52 ` Geoff Levand
2007-10-08 22:59 ` Ranulf Doswell
2007-10-08 23:36 ` Geoff Levand
2007-10-09 9:35 ` Geert Uytterhoeven
2007-10-09 12:23 ` Ranulf Doswell
2007-10-09 1:07 ` [patch v2] " Geoff Levand
2007-10-09 11:38 ` Geert Uytterhoeven
2007-10-09 17:15 ` Linas Vepstas
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