Re: [PATCH v7 1/4] remoteproc: core: Add ops to enable custom coredump functionality
From: Bjorn Andersson <hidden>
Date: 2020-11-18 15:39:09
Also in:
linux-arm-msm, linux-doc, linux-remoteproc, lkml
On Tue 03 Nov 03:19 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 <redacted> Regards, Bjorn
quoted hunk ↗ jump to hunk
Signed-off-by: Siddharth Gupta <redacted> --- 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
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