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remoteproc: qcom_q6v5_mss: Replace mask based tracking with size
In order to land inline coredump support for mss, the dump_segment function would need to support granularities less than the segment size. This is achieved by replacing mask based tracking with size. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org> Link: https://lore.kernel.org/r/1594938035-7327-3-git-send-email-rishabhb@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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2c010cc378
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1 changed files with 8 additions and 9 deletions
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@ -180,8 +180,8 @@ struct q6v5 {
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bool running;
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bool dump_mba_loaded;
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unsigned long dump_segment_mask;
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unsigned long dump_complete_mask;
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size_t current_dump_size;
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size_t total_dump_size;
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phys_addr_t mba_phys;
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void *mba_region;
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@ -1206,7 +1206,6 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc,
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{
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int ret = 0;
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struct q6v5 *qproc = rproc->priv;
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unsigned long mask = BIT((unsigned long)segment->priv);
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int offset = segment->da - qproc->mpss_reloc;
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void *ptr = NULL;
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@ -1232,10 +1231,10 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc,
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memset(dest, 0xff, segment->size);
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}
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qproc->dump_segment_mask |= mask;
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qproc->current_dump_size += segment->size;
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/* Reclaim mba after copying segments */
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if (qproc->dump_segment_mask == qproc->dump_complete_mask) {
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if (qproc->current_dump_size == qproc->total_dump_size) {
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if (qproc->dump_mba_loaded) {
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/* Try to reset ownership back to Q6 */
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q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm,
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@ -1277,7 +1276,7 @@ static int q6v5_start(struct rproc *rproc)
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"Failed to reclaim mba buffer system may become unstable\n");
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/* Reset Dump Segment Mask */
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qproc->dump_segment_mask = 0;
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qproc->current_dump_size = 0;
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qproc->running = true;
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return 0;
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@ -1326,7 +1325,7 @@ static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
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ehdr = (struct elf32_hdr *)fw->data;
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phdrs = (struct elf32_phdr *)(ehdr + 1);
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qproc->dump_complete_mask = 0;
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qproc->total_dump_size = 0;
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for (i = 0; i < ehdr->e_phnum; i++) {
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phdr = &phdrs[i];
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@ -1337,11 +1336,11 @@ static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
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ret = rproc_coredump_add_custom_segment(rproc, phdr->p_paddr,
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phdr->p_memsz,
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qcom_q6v5_dump_segment,
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(void *)i);
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NULL);
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if (ret)
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break;
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qproc->dump_complete_mask |= BIT(i);
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qproc->total_dump_size += phdr->p_memsz;
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}
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release_firmware(fw);
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