From: Jassi Brar <jassisinghbrar@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: gregkh@linuxfoundation.org, s-anna@ti.com, tony@atomide.com,
omar.ramirez@copitl.com, loic.pallardy@st.com,
lftan.linux@gmail.com, slapdau@yahoo.com.au,
courtney.cavin@sonymobile.com, rafael.j.wysocki@intel.com
Subject: [PATCHv3 6/6] mailbox: move the internal definitions into a private file
Date: Sat, 15 Feb 2014 23:57:02 +0530 [thread overview]
Message-ID: <1392488822-18178-1-git-send-email-jaswinder.singh@linaro.org> (raw)
In-Reply-To: <1392488526-17715-1-git-send-email-jaswinder.singh@linaro.org>
From: Suman Anna <s-anna@ti.com>
This is needed for extracting the omap_mbox. The OMAP mailbox
code has a need for exporting some pre-existing API to not
break the current clients.
Signed-off-by: Suman Anna <s-anna@ti.com>
---
drivers/mailbox/mailbox.c | 62 +-----------------------------
drivers/mailbox/mailbox_internal.h | 77 ++++++++++++++++++++++++++++++++++++++
2 files changed, 78 insertions(+), 61 deletions(-)
create mode 100644 drivers/mailbox/mailbox_internal.h
diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index bac767e..b0e7126 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -14,67 +14,7 @@
#include <linux/mailbox_client.h>
#include <linux/mailbox_controller.h>
-/*
- * The length of circular buffer for queuing messages from a client.
- * 'msg_count' tracks the number of buffered messages while 'msg_free'
- * is the index where the next message would be buffered.
- * We shouldn't need it too big because every transferr is interrupt
- * triggered and if we have lots of data to transfer, the interrupt
- * latencies are going to be the bottleneck, not the buffer length.
- * Besides, ipc_send_message could be called from atomic context and
- * the client could also queue another message from the notifier 'txcb'
- * of the last transfer done.
- * REVIST: If too many platforms see the "Try increasing MBOX_TX_QUEUE_LEN"
- * print, it needs to be taken from config option or somesuch.
- */
-#define MBOX_TX_QUEUE_LEN 20
-
-#define TXDONE_BY_IRQ (1 << 0) /* controller has remote RTR irq */
-#define TXDONE_BY_POLL (1 << 1) /* controller can read status of last TX */
-#define TXDONE_BY_ACK (1 << 2) /* S/W ACK recevied by Client ticks the TX */
-
-struct ipc_chan {
- char name[16]; /* link_name */
- struct ipc_con *con; /* Parent Controller */
- unsigned txdone_method;
-
- /* Cached values from controller */
- struct ipc_link *link;
- struct ipc_link_ops *link_ops;
-
- /* Cached values from client */
- void *cl_id;
- void (*rxcb)(void *cl_id, void *mssg);
- void (*txcb)(void *cl_id, void *mssg, enum xfer_result r);
- bool tx_block;
- unsigned long tx_tout;
- struct completion tx_complete;
-
- void *active_req;
- unsigned msg_count, msg_free;
- void *msg_data[MBOX_TX_QUEUE_LEN];
- bool assigned;
- /* Serialize access to the channel */
- spinlock_t lock;
- /* Hook to add to the controller's list of channels */
- struct list_head node;
- /* Notifier to all clients waiting on aquiring this channel */
- struct blocking_notifier_head avail;
-};
-
-/* Internal representation of a controller */
-struct ipc_con {
- char name[16]; /* controller_name */
- struct list_head channels;
- /*
- * If the controller supports only TXDONE_BY_POLL,
- * this timer polls all the links for txdone.
- */
- struct timer_list poll;
- unsigned period;
- /* Hook to add to the global controller list */
- struct list_head node;
-};
+#include "mailbox_internal.h"
static LIST_HEAD(ipc_cons);
static DEFINE_MUTEX(con_mutex);
diff --git a/drivers/mailbox/mailbox_internal.h b/drivers/mailbox/mailbox_internal.h
new file mode 100644
index 0000000..a39dcb7
--- /dev/null
+++ b/drivers/mailbox/mailbox_internal.h
@@ -0,0 +1,77 @@
+/*
+ * mailbox: interprocessor communication module
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef MAILBOX_INTERNAL_H
+#define MAILBOX_INTERNAL_H
+
+#include <linux/device.h>
+#include <linux/mailbox_controller.h>
+
+/*
+ * The length of circular buffer for queuing messages from a client.
+ * 'msg_count' tracks the number of buffered messages while 'msg_free'
+ * is the index where the next message would be buffered.
+ * We shouldn't need it too big because every transferr is interrupt
+ * triggered and if we have lots of data to transfer, the interrupt
+ * latencies are going to be the bottleneck, not the buffer length.
+ * Besides, ipc_send_message could be called from atomic context and
+ * the client could also queue another message from the notifier 'txcb'
+ * of the last transfer done.
+ * REVIST: If too many platforms see the "Try increasing MBOX_TX_QUEUE_LEN"
+ * print, it needs to be taken from config option or somesuch.
+ */
+#define MBOX_TX_QUEUE_LEN 20
+
+#define TXDONE_BY_IRQ (1 << 0) /* controller has remote RTR irq */
+#define TXDONE_BY_POLL (1 << 1) /* controller can read status of last TX */
+#define TXDONE_BY_ACK (1 << 2) /* S/W ACK recevied by Client ticks the TX */
+
+struct ipc_chan {
+ char name[16]; /* link_name */
+ struct ipc_con *con; /* Parent Controller */
+ unsigned txdone_method;
+
+ /* Cached values from controller */
+ struct ipc_link *link;
+ struct ipc_link_ops *link_ops;
+
+ /* Cached values from client */
+ void *cl_id;
+ void (*rxcb)(void *cl_id, void *mssg);
+ void (*txcb)(void *cl_id, void *mssg, enum xfer_result r);
+ bool tx_block;
+ unsigned long tx_tout;
+ struct completion tx_complete;
+
+ void *active_req;
+ unsigned msg_count, msg_free;
+ void *msg_data[MBOX_TX_QUEUE_LEN];
+ bool assigned;
+ /* Serialize access to the channel */
+ spinlock_t lock;
+ /* Hook to add to the controller's list of channels */
+ struct list_head node;
+ /* Notifier to all clients waiting on aquiring this channel */
+ struct blocking_notifier_head avail;
+};
+
+/* Internal representation of a controller */
+struct ipc_con {
+ char name[16]; /* controller_name */
+ struct list_head channels;
+ /*
+ * If the controller supports only TXDONE_BY_POLL,
+ * this timer polls all the links for txdone.
+ */
+ struct timer_list poll;
+ unsigned period;
+ /* Hook to add to the global controller list */
+ struct list_head node;
+};
+
+#endif /* MAILBOX_INTERNAL_H */
--
1.8.1.2
next prev parent reply other threads:[~2014-02-15 18:27 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-15 18:22 [PATCHv3] Generic Mailbox API Jassi Brar
2014-02-15 18:24 ` [PATCHv3 1/6] mailbox: rename pl320-ipc specific mailbox.h Jassi Brar
2014-02-15 18:25 ` [PATCHv3 2/6] mailbox: Introduce a new common API Jassi Brar
2014-02-15 19:03 ` Greg KH
2014-02-15 19:04 ` Greg KH
2014-02-15 19:05 ` Greg KH
2014-02-15 19:15 ` Greg KH
2014-02-16 6:36 ` Jassi Brar
2014-02-16 16:36 ` Greg KH
2014-02-18 0:52 ` Courtney Cavin
2014-02-18 7:06 ` Jassi Brar
2014-02-18 17:30 ` Bjorn Andersson
2014-02-18 18:33 ` Jassi Brar
2014-02-18 19:47 ` Courtney Cavin
2014-02-19 21:43 ` Jassi Brar
2014-02-18 21:32 ` Kumar Gala
2014-02-19 10:53 ` Jassi Brar
2014-02-15 18:25 ` [PATCHv3 3/6] mailbox: pl320: Introduce common API driver Jassi Brar
2014-02-15 18:26 ` [PATCHv3 4/6] mailbox: Fix TX completion init Jassi Brar
2014-02-15 18:26 ` [PATCHv3 5/6] mailbox: Fix deleteing poll timer Jassi Brar
2014-02-15 18:27 ` Jassi Brar [this message]
2014-02-15 19:15 ` [PATCHv3 6/6] mailbox: move the internal definitions into a private file Greg KH
2014-02-15 19:16 ` Greg KH
2014-02-16 6:38 ` Jassi Brar
2014-02-17 5:57 ` [PATCHv3] Generic Mailbox API Craig McGeachie
2014-02-17 6:02 ` Jassi Brar
2014-02-17 6:03 ` Craig McGeachie
2014-02-17 6:12 ` Jassi Brar
2014-03-06 3:55 ` Jassi Brar
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