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[104.57.184.186]) by smtp.gmail.com with ESMTPSA id o63sm2781105ooa.10.2020.11.20.20.03.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Nov 2020 20:03:14 -0800 (PST) Date: Fri, 20 Nov 2020 22:03:12 -0600 From: Bjorn Andersson To: Siddharth Gupta Cc: agross@kernel.org, ohad@wizery.com, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tsoni@codeaurora.org, psodagud@codeaurora.org, rishabhb@codeaurora.org, linux-doc@vger.kernel.org Subject: Re: [PATCH v8 1/4] remoteproc: core: Add ops to enable custom coredump functionality Message-ID: <20201121040312.GJ9177@builder.lan> References: <1605819935-10726-1-git-send-email-sidgup@codeaurora.org> <1605819935-10726-2-git-send-email-sidgup@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1605819935-10726-2-git-send-email-sidgup@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Thu 19 Nov 15:05 CST 2020, Siddharth Gupta wrote: > Each remoteproc might have different requirements for coredumps and might > want to choose the type of dumps it wants to collect. This change allows > remoteproc drivers to specify their own custom dump function to be executed > in place of rproc_coredump. If the coredump op is not specified by the > remoteproc driver it will be set to rproc_coredump by default. > Reviewed-by: Bjorn Andersson Regards, Bjorn > Signed-off-by: Siddharth Gupta > --- > drivers/remoteproc/remoteproc_core.c | 6 +++++- > include/linux/remoteproc.h | 2 ++ > 2 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c > index dab2c0f..eba7543 100644 > --- a/drivers/remoteproc/remoteproc_core.c > +++ b/drivers/remoteproc/remoteproc_core.c > @@ -1704,7 +1704,7 @@ int rproc_trigger_recovery(struct rproc *rproc) > goto unlock_mutex; > > /* generate coredump */ > - rproc_coredump(rproc); > + rproc->ops->coredump(rproc); > > /* load firmware */ > ret = request_firmware(&firmware_p, rproc->firmware, dev); > @@ -2126,6 +2126,10 @@ static int rproc_alloc_ops(struct rproc *rproc, const struct rproc_ops *ops) > if (!rproc->ops) > return -ENOMEM; > > + /* Default to rproc_coredump if no coredump function is specified */ > + if (!rproc->ops->coredump) > + rproc->ops->coredump = rproc_coredump; > + > if (rproc->ops->load) > return 0; > > diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h > index 3fa3ba6..a419878 100644 > --- a/include/linux/remoteproc.h > +++ b/include/linux/remoteproc.h > @@ -375,6 +375,7 @@ enum rsc_handling_status { > * @get_boot_addr: get boot address to entry point specified in firmware > * @panic: optional callback to react to system panic, core will delay > * panic at least the returned number of milliseconds > + * @coredump: collect firmware dump after the subsystem is shutdown > */ > struct rproc_ops { > int (*prepare)(struct rproc *rproc); > @@ -393,6 +394,7 @@ struct rproc_ops { > int (*sanity_check)(struct rproc *rproc, const struct firmware *fw); > u64 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw); > unsigned long (*panic)(struct rproc *rproc); > + void (*coredump)(struct rproc *rproc); > }; > > /** > -- > Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >