From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: bjorn.andersson@linaro.org, ohad@wizery.com
Cc: loic.pallardy@st.com, arnaud.pouliquen@st.com, s-anna@ti.com,
linux-remoteproc@vger.kernel.org, corbet@lwn.net,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 03/14] remoteproc: Add new operation and flags for synchronistation
Date: Fri, 24 Apr 2020 14:01:24 -0600 [thread overview]
Message-ID: <20200424200135.28825-4-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20200424200135.28825-1-mathieu.poirier@linaro.org>
Add a new sync_ops to support use cases where the remoteproc
core is synchronising with the remote processor. Exactly when to use
the synchronisation operations is directed by the flags in structure
rproc_sync_flags.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
include/linux/remoteproc.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index ac4082f12e8b..ceb3b2bba824 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -353,6 +353,23 @@ enum rsc_handling_status {
RSC_IGNORED = 1,
};
+/**
+ * struct rproc_sync_flags - platform specific flags indicating which
+ * rproc_ops to use at specific times during
+ * the rproc lifecycle.
+ * @on_init: true if synchronising with the remote processor at
+ * initialisation time
+ * @after_stop: true if synchronising with the remote processor after it was
+ * stopped from the cmmand line
+ * @after_crash: true if synchronising with the remote processor after
+ * it has crashed
+ */
+struct rproc_sync_flags {
+ bool on_init;
+ bool after_stop;
+ bool after_crash;
+};
+
/**
* struct rproc_ops - platform-specific device handlers
* @start: power on the device and boot it
@@ -459,6 +476,9 @@ struct rproc_dump_segment {
* @firmware: name of firmware file to be loaded
* @priv: private data which belongs to the platform-specific rproc module
* @ops: platform-specific start/stop rproc handlers
+ * @sync_ops: platform-specific start/stop rproc handlers when
+ * synchronising with a remote processor.
+ * @sync_flags: Determine the rproc_ops to choose in specific states.
* @dev: virtual device for refcounting and common remoteproc behavior
* @power: refcount of users who need this rproc powered up
* @state: state of the device
@@ -482,6 +502,7 @@ struct rproc_dump_segment {
* @table_sz: size of @cached_table
* @has_iommu: flag to indicate if remote processor is behind an MMU
* @auto_boot: flag to indicate if remote processor should be auto-started
+ * @sync_with_rproc: true if currently synchronising with the rproc
* @dump_segments: list of segments in the firmware
* @nb_vdev: number of vdev currently handled by rproc
*/
@@ -492,6 +513,8 @@ struct rproc {
const char *firmware;
void *priv;
struct rproc_ops *ops;
+ struct rproc_ops *sync_ops;
+ struct rproc_sync_flags sync_flags;
struct device dev;
atomic_t power;
unsigned int state;
@@ -515,6 +538,7 @@ struct rproc {
size_t table_sz;
bool has_iommu;
bool auto_boot;
+ bool sync_with_rproc;
struct list_head dump_segments;
int nb_vdev;
u8 elf_class;
--
2.20.1
next prev parent reply other threads:[~2020-04-24 20:01 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-24 20:01 [PATCH v3 00/14] remoteproc: Add support for synchronisaton with rproc Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 01/14] remoteproc: Make core operations optional Mathieu Poirier
2020-04-28 16:18 ` Arnaud POULIQUEN
2020-04-30 19:39 ` Mathieu Poirier
2020-05-05 22:16 ` Bjorn Andersson
2020-05-08 19:09 ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 02/14] remoteproc: Introduce function rproc_alloc_internals() Mathieu Poirier
2020-05-05 22:31 ` Bjorn Andersson
2020-05-08 19:37 ` Mathieu Poirier
2020-04-24 20:01 ` Mathieu Poirier [this message]
2020-04-28 16:38 ` [PATCH v3 03/14] remoteproc: Add new operation and flags for synchronistation Arnaud POULIQUEN
2020-04-30 19:49 ` Mathieu Poirier
2020-05-06 0:22 ` Bjorn Andersson
2020-05-08 21:01 ` Mathieu Poirier
2020-05-14 1:32 ` Bjorn Andersson
2020-05-15 19:24 ` Mathieu Poirier
2020-05-19 0:55 ` Bjorn Andersson
2020-05-20 22:06 ` Mathieu Poirier
2020-05-21 5:21 ` Bjorn Andersson
2020-05-21 21:55 ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 04/14] remoteproc: Refactor function rproc_boot() Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 05/14] remoteproc: Refactor function rproc_fw_boot() Mathieu Poirier
2020-05-06 0:33 ` Bjorn Andersson
2020-05-08 21:27 ` Mathieu Poirier
2020-05-14 2:10 ` Bjorn Andersson
2020-05-15 19:46 ` Mathieu Poirier
2020-05-19 0:22 ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 06/14] remoteproc: Refactor function rproc_trigger_auto_boot() Mathieu Poirier
2020-04-28 17:00 ` Arnaud POULIQUEN
2020-04-24 20:01 ` [PATCH v3 07/14] remoteproc: Introducting new start and stop functions Mathieu Poirier
2020-05-06 0:42 ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 08/14] remoteproc: Call core functions based on synchronisation flag Mathieu Poirier
2020-04-28 17:27 ` Arnaud POULIQUEN
2020-04-30 19:57 ` Mathieu Poirier
2020-05-04 11:14 ` Arnaud POULIQUEN
2020-05-05 22:10 ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 09/14] remoteproc: Deal with synchronisation when crashing Mathieu Poirier
2020-04-29 7:44 ` Arnaud POULIQUEN
2020-04-30 20:11 ` Mathieu Poirier
2020-05-06 1:01 ` Bjorn Andersson
2020-05-08 21:47 ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 10/14] remoteproc: Deal with synchronisation when shutting down Mathieu Poirier
2020-04-29 8:19 ` Arnaud POULIQUEN
2020-04-30 20:23 ` Mathieu Poirier
2020-05-04 11:34 ` Arnaud POULIQUEN
2020-05-05 22:03 ` Mathieu Poirier
2020-05-06 7:51 ` Arnaud POULIQUEN
2020-05-06 1:10 ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 11/14] remoteproc: Deal with synchronisation when changing FW image Mathieu Poirier
2020-04-29 8:52 ` Arnaud POULIQUEN
2020-04-30 20:32 ` Mathieu Poirier
2020-05-06 1:27 ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 12/14] remoteproc: Introducing function rproc_set_state_machine() Mathieu Poirier
2020-04-29 9:22 ` Arnaud POULIQUEN
2020-04-29 14:38 ` Arnaud POULIQUEN
2020-04-30 20:51 ` Mathieu Poirier
2020-05-04 12:00 ` Arnaud POULIQUEN
2020-04-30 20:42 ` Mathieu Poirier
2020-05-04 11:57 ` Arnaud POULIQUEN
2020-05-05 21:43 ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 13/14] remoteproc: Document " Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 14/14] remoteproc: Expose synchronisation flags via debugfs Mathieu Poirier
2020-05-18 13:28 ` [PATCH v3 00/14] remoteproc: Add support for synchronisaton with rproc Peng Fan
2020-05-18 16:29 ` Mathieu Poirier
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