From: Tero Kristo <t-kristo@ti.com>
To: <bjorn.andersson@linaro.org>, <ohad@wizery.com>,
<linux-remoteproc@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<s-anna@ti.com>, Tero Kristo <t-kristo@ti.com>
Subject: [PATCH 11/17] remoteproc/omap: Check for undefined mailbox messages
Date: Mon, 28 Oct 2019 14:42:32 +0200 [thread overview]
Message-ID: <20191028124238.19224-12-t-kristo@ti.com> (raw)
In-Reply-To: <20191028124238.19224-1-t-kristo@ti.com>
From: Suman Anna <s-anna@ti.com>
Add some checks in the mailbox callback function to limit
any processing in the mailbox callback function to only
certain currently valid messages, and drop all the remaining
messages. A debug message is added to print any such invalid
messages when the appropriate trace control is enabled.
Signed-off-by: Subramaniam Chanderashekarapuram <subramaniam.ca@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/remoteproc/omap_remoteproc.c | 6 ++++++
drivers/remoteproc/omap_remoteproc.h | 7 +++++++
2 files changed, 13 insertions(+)
diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c
index e46bb4c790d7..016d5beda195 100644
--- a/drivers/remoteproc/omap_remoteproc.c
+++ b/drivers/remoteproc/omap_remoteproc.c
@@ -124,6 +124,12 @@ static void omap_rproc_mbox_callback(struct mbox_client *client, void *data)
dev_info(dev, "received echo reply from %s\n", name);
break;
default:
+ if (msg >= RP_MBOX_READY && msg < RP_MBOX_END_MSG)
+ return;
+ if (msg > oproc->rproc->max_notifyid) {
+ dev_dbg(dev, "dropping unknown message 0x%x", msg);
+ return;
+ }
/* msg contains the index of the triggered vring */
if (rproc_vq_interrupt(oproc->rproc, msg) == IRQ_NONE)
dev_dbg(dev, "no message was found in vqid %d\n", msg);
diff --git a/drivers/remoteproc/omap_remoteproc.h b/drivers/remoteproc/omap_remoteproc.h
index 1e6fef753c4f..18f522617683 100644
--- a/drivers/remoteproc/omap_remoteproc.h
+++ b/drivers/remoteproc/omap_remoteproc.h
@@ -31,6 +31,12 @@
*
* @RP_MBOX_ABORT_REQUEST: a "please crash" request, used for testing the
* recovery mechanism (to some extent).
+ *
+ * Introduce new message definitions if any here.
+ *
+ * @RP_MBOX_END_MSG: Indicates end of known/defined messages from remote core
+ * This should be the last definition.
+ *
*/
enum omap_rp_mbox_messages {
RP_MBOX_READY = 0xFFFFFF00,
@@ -39,6 +45,7 @@ enum omap_rp_mbox_messages {
RP_MBOX_ECHO_REQUEST = 0xFFFFFF03,
RP_MBOX_ECHO_REPLY = 0xFFFFFF04,
RP_MBOX_ABORT_REQUEST = 0xFFFFFF05,
+ RP_MBOX_END_MSG = 0xFFFFFF06,
};
#endif /* _OMAP_RPMSG_H */
--
2.17.1
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2019-10-28 12:43 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 12:42 [PATCH 00/17] remoteproc: omap changes on top of v5.4-rc1 Tero Kristo
2019-10-28 12:42 ` [PATCH 01/17] dt-bindings: remoteproc: Add OMAP remoteproc bindings Tero Kristo
2019-11-06 3:27 ` Rob Herring
2019-11-06 12:44 ` Tero Kristo
2019-11-06 13:27 ` Rob Herring
2019-11-06 13:50 ` Tero Kristo
2019-11-07 14:05 ` [PATCHv2 " Tero Kristo
2019-11-13 14:25 ` Rob Herring
2019-10-28 12:42 ` [PATCH 02/17] remoteproc/omap: Switch to SPDX license identifiers Tero Kristo
2019-11-09 1:03 ` Bjorn Andersson
2019-11-12 8:16 ` Tero Kristo
2019-12-20 3:30 ` Suman Anna
2019-10-28 12:42 ` [PATCH 03/17] remoteproc/omap: Add device tree support Tero Kristo
2019-11-11 23:16 ` Bjorn Andersson
2019-11-12 8:14 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 04/17] remoteproc/omap: Add a sanity check for DSP boot address alignment Tero Kristo
2019-11-11 23:18 ` Bjorn Andersson
2019-10-28 12:42 ` [PATCH 05/17] remoteproc/omap: Add support to parse internal memories from DT Tero Kristo
2019-11-11 23:21 ` Bjorn Andersson
2019-11-12 8:21 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 06/17] remoteproc/omap: Add the rproc ops .da_to_va() implementation Tero Kristo
2019-11-11 23:22 ` Bjorn Andersson
2019-11-12 8:22 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 07/17] remoteproc/omap: Initialize and assign reserved memory node Tero Kristo
2019-11-11 23:23 ` Bjorn Andersson
2019-10-28 12:42 ` [PATCH 08/17] remoteproc/omap: Add support for DRA7xx remote processors Tero Kristo
2019-11-11 23:37 ` Bjorn Andersson
2019-11-12 8:37 ` Tero Kristo
2019-11-12 18:13 ` Bjorn Andersson
2019-11-13 8:08 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 09/17] remoteproc/omap: Remove the unused fields from platform data Tero Kristo
2019-11-11 23:37 ` Bjorn Andersson
2019-10-28 12:42 ` [PATCH 10/17] remoteproc/omap: Remove the omap_rproc_reserve_cma declaration Tero Kristo
2019-11-11 23:37 ` Bjorn Andersson
2019-10-28 12:42 ` Tero Kristo [this message]
2019-11-11 23:39 ` [PATCH 11/17] remoteproc/omap: Check for undefined mailbox messages Bjorn Andersson
2019-11-12 8:38 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 12/17] remoteproc/omap: Request a timer(s) for remoteproc usage Tero Kristo
2019-11-12 4:13 ` Bjorn Andersson
2019-11-12 8:42 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 13/17] remoteproc/omap: add support for system suspend/resume Tero Kristo
2019-11-12 6:15 ` Bjorn Andersson
2019-11-12 8:45 ` Tero Kristo
2019-11-12 18:06 ` Bjorn Andersson
2019-10-28 12:42 ` [PATCH 14/17] remoteproc/omap: add support for runtime auto-suspend/resume Tero Kristo
2019-10-28 12:42 ` [PATCH 15/17] remoteproc/omap: report device exceptions and trigger recovery Tero Kristo
2019-11-12 6:26 ` Bjorn Andersson
2019-11-12 8:46 ` Tero Kristo
2019-10-28 12:42 ` [PATCH 16/17] remoteproc/omap: add watchdog functionality for remote processors Tero Kristo
2019-10-28 12:42 ` [PATCH 17/17] remoteproc/omap: fix auto-suspend failure warning during crashed state Tero Kristo
2019-11-12 6:28 ` Bjorn Andersson
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