@@ -1183,14 +1183,18 @@ static void rproc_coredump(struct rproc *rproc)
phdr->p_flags = PF_R | PF_W | PF_X;
phdr->p_align = 0;
- ptr = rproc_da_to_va(rproc, segment->da, segment->size);
- if (!ptr) {
- dev_err(&rproc->dev,
+ if (segment->dump) {
+ segment->dump(rproc, segment, data + offset);
+ } else {
+ ptr = rproc_da_to_va(rproc, segment->da, segment->size);
+ if (!ptr) {
+ dev_err(&rproc->dev,
"invalid coredump segment (%pad, %zu)\n",
&segment->da, segment->size);
- memset(data + offset, 0xff, segment->size);
- } else {
- memcpy(data + offset, ptr, segment->size);
+ memset(data + offset, 0xff, segment->size);
+ } else {
+ memcpy(data + offset, ptr, segment->size);
+ }
}
offset += phdr->p_filesz;
@@ -399,6 +399,9 @@ enum rproc_crash_type {
* @node: list node related to the rproc segment list
* @da: device address of the segment
* @size: size of the segment
+ * @priv: private data associated with the dump_segment
+ * @dump: custom dump function to fill device memory segment associated
+ * with coredump
*/
struct rproc_dump_segment {
struct list_head node;
@@ -406,6 +409,9 @@ struct rproc_dump_segment {
dma_addr_t da;
size_t size;
+ void *priv;
+ void (*dump)(struct rproc *rproc, struct rproc_dump_segment *segment,
+ void *dest);
loff_t offset;
};
Introduce custom dump function and private data per remoteproc dump segment. The dump function is responsible for filling the device memory segment associated with coredump Signed-off-by: Sibi Sankar <sibis@codeaurora.org> --- drivers/remoteproc/remoteproc_core.c | 16 ++++++++++------ include/linux/remoteproc.h | 6 ++++++ 2 files changed, 16 insertions(+), 6 deletions(-)