On Thu 16 Jul 15:20 PDT 2020, Rishabh Bhatnagar wrote:
> Change the segment dump API signature to include size and offset
> arguments. Refactor the qcom_q6v5_mss driver to use these
> arguments while copying the segment. Doing this lays the ground
> work for "inline" coredump functionality being added in the next
> patch.
>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Signed-off-by: Rishabh Bhatnagar <rishabhb@xxxxxxxxxxxxxx>
> ---
> drivers/remoteproc/qcom_q6v5_mss.c | 10 +++++-----
> drivers/remoteproc/remoteproc_coredump.c | 5 +++--
> include/linux/remoteproc.h | 5 +++--
> 3 files changed, 11 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
> index 037cd45..6baa3ae 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -1199,7 +1199,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
>
> static void qcom_q6v5_dump_segment(struct rproc *rproc,
> struct rproc_dump_segment *segment,
> - void *dest)
> + void *dest, size_t cp_offset, size_t size)
> {
> int ret = 0;
> struct q6v5 *qproc = rproc->priv;
> @@ -1219,16 +1219,16 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc,
> }
>
> if (!ret)
> - ptr = ioremap_wc(qproc->mpss_phys + offset, segment->size);
> + ptr = ioremap_wc(qproc->mpss_phys + offset + cp_offset, size);
>
> if (ptr) {
> - memcpy(dest, ptr, segment->size);
> + memcpy(dest, ptr, size);
> iounmap(ptr);
> } else {
> - memset(dest, 0xff, segment->size);
> + memset(dest, 0xff, size);
> }
>
> - qproc->current_dump_size += segment->size;
> + qproc->current_dump_size += size;
>
> /* Reclaim mba after copying segments */
> if (qproc->current_dump_size == qproc->total_dump_size) {
> diff --git a/drivers/remoteproc/remoteproc_coredump.c b/drivers/remoteproc/remoteproc_coredump.c
> index ded0244..390f563 100644
> --- a/drivers/remoteproc/remoteproc_coredump.c
> +++ b/drivers/remoteproc/remoteproc_coredump.c
> @@ -72,7 +72,8 @@ 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 *dest, size_t offset,
> + size_t size),
> void *priv)
> {
> struct rproc_dump_segment *segment;
> @@ -183,7 +184,7 @@ void rproc_coredump(struct rproc *rproc)
> elf_phdr_set_p_align(class, phdr, 0);
>
> if (segment->dump) {
> - segment->dump(rproc, segment, data + offset);
> + segment->dump(rproc, segment, data + offset, 0, segment->size);
> } else {
> ptr = rproc_da_to_va(rproc, segment->da, segment->size);
> if (!ptr) {
> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
> index e7b7bab..eb08139 100644
> --- a/include/linux/remoteproc.h
> +++ b/include/linux/remoteproc.h
> @@ -451,7 +451,7 @@ struct rproc_dump_segment {
>
> void *priv;
> void (*dump)(struct rproc *rproc, struct rproc_dump_segment *segment,
> - void *dest);
> + void *dest, size_t offset, size_t size);
> loff_t offset;
> };
>
> @@ -630,7 +630,8 @@ 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 *dest, size_t offset,
> + size_t size),
> void *priv);
> int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine);
>
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
