diff options
| author | Sibi Sankar <sibis@codeaurora.org> | 2018-10-17 19:25:24 +0530 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-10-19 12:53:55 -0700 |
| commit | ab8f873bb90da7bbe40e2f41c92a4971c4f0dc76 (patch) | |
| tree | abfeb259626b278bf5cd7bf2df13e57d9a894a8e /drivers/remoteproc | |
| parent | 3952105df4723abbd36b57e88c8dad42cf6c8b59 (diff) | |
| download | linux-ab8f873bb90da7bbe40e2f41c92a4971c4f0dc76.tar.bz2 | |
remoteproc: Add mechanism for custom dump function assignment
This patch adds a mechanism for assigning each rproc dump segment with
a custom dump function and private data. The dump function is to be
called for each rproc segment during coredump if assigned.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
[bjorn: reordred arguments to rproc_coredump_add_custom_segment()]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 6bed40d01dbf..54ec38fc5dca 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1447,6 +1447,44 @@ int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size) EXPORT_SYMBOL(rproc_coredump_add_segment); /** + * rproc_coredump_add_custom_segment() - add custom coredump segment + * @rproc: handle of a remote processor + * @da: device address + * @size: size of segment + * @dumpfn: custom dump function called for each segment during coredump + * @priv: private data + * + * Add device memory to the list of segments to be included in the coredump + * and associate the segment with the given custom dump function and private + * data. + * + * Return: 0 on success, negative errno on error. + */ +int rproc_coredump_add_custom_segment(struct rproc *rproc, + dma_addr_t da, size_t size, + void (*dumpfn)(struct rproc *rproc, + struct rproc_dump_segment *segment, + void *dest), + void *priv) +{ + struct rproc_dump_segment *segment; + + segment = kzalloc(sizeof(*segment), GFP_KERNEL); + if (!segment) + return -ENOMEM; + + segment->da = da; + segment->size = size; + segment->priv = priv; + segment->dump = dumpfn; + + list_add_tail(&segment->node, &rproc->dump_segments); + + return 0; +} +EXPORT_SYMBOL(rproc_coredump_add_custom_segment); + +/** * rproc_coredump() - perform coredump * @rproc: rproc handle * |