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authorYogesh Lal <quic_ylal@quicinc.com>2022-11-02 20:12:09 +0300
committerBjorn Andersson <andersson@kernel.org>2023-02-14 20:04:29 +0300
commita376c10d45a8e6ee5ea55791193f90625b35e156 (patch)
treee0262e04217b44470f3f1531368661d873aa7561 /drivers/remoteproc
parent2554dd0ac362738f588ba073d8333eb9b14f9587 (diff)
downloadlinux-a376c10d45a8e6ee5ea55791193f90625b35e156.tar.xz
remoteproc: qcom: pas: Adjust the phys addr wrt the mem region
The minidump table in the toc contains physical addresses that may lie before the physical address of the first elf segment in relocatable images. This change adds a custom dump function for minidumps which calculates the offset into the carveout region using the start of the physical address instead of the start of the first elf segment. Signed-off-by: Yogesh Lal <quic_ylal@quicinc.com> Reviewed-by: Sibi Sankar <quic_sibis@quicinc.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/1667409129-6254-1-git-send-email-quic_ylal@quicinc.com
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/qcom_common.c13
-rw-r--r--drivers/remoteproc/qcom_common.h5
-rw-r--r--drivers/remoteproc/qcom_q6v5_pas.c20
3 files changed, 32 insertions, 6 deletions
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index abf66c6876df..a0d4238492e9 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -101,7 +101,9 @@ static void qcom_minidump_cleanup(struct rproc *rproc)
}
}
-static int qcom_add_minidump_segments(struct rproc *rproc, struct minidump_subsystem *subsystem)
+static int qcom_add_minidump_segments(struct rproc *rproc, struct minidump_subsystem *subsystem,
+ void (*rproc_dumpfn_t)(struct rproc *rproc, struct rproc_dump_segment *segment,
+ void *dest, size_t offset, size_t size))
{
struct minidump_region __iomem *ptr;
struct minidump_region region;
@@ -131,7 +133,7 @@ static int qcom_add_minidump_segments(struct rproc *rproc, struct minidump_subsy
}
da = le64_to_cpu(region.address);
size = le64_to_cpu(region.size);
- rproc_coredump_add_custom_segment(rproc, da, size, NULL, name);
+ rproc_coredump_add_custom_segment(rproc, da, size, rproc_dumpfn_t, name);
}
}
@@ -139,7 +141,10 @@ static int qcom_add_minidump_segments(struct rproc *rproc, struct minidump_subsy
return 0;
}
-void qcom_minidump(struct rproc *rproc, unsigned int minidump_id)
+void qcom_minidump(struct rproc *rproc, unsigned int minidump_id,
+ void (*rproc_dumpfn_t)(struct rproc *rproc,
+ struct rproc_dump_segment *segment, void *dest, size_t offset,
+ size_t size))
{
int ret;
struct minidump_subsystem *subsystem;
@@ -169,7 +174,7 @@ void qcom_minidump(struct rproc *rproc, unsigned int minidump_id)
return;
}
- ret = qcom_add_minidump_segments(rproc, subsystem);
+ ret = qcom_add_minidump_segments(rproc, subsystem, rproc_dumpfn_t);
if (ret) {
dev_err(&rproc->dev, "Failed with error: %d while adding minidump entries\n", ret);
goto clean_minidump;
diff --git a/drivers/remoteproc/qcom_common.h b/drivers/remoteproc/qcom_common.h
index c35adf730be0..c3cc6194e483 100644
--- a/drivers/remoteproc/qcom_common.h
+++ b/drivers/remoteproc/qcom_common.h
@@ -33,7 +33,10 @@ struct qcom_rproc_ssr {
struct qcom_ssr_subsystem *info;
};
-void qcom_minidump(struct rproc *rproc, unsigned int minidump_id);
+void qcom_minidump(struct rproc *rproc, unsigned int minidump_id,
+ void (*rproc_dumpfn_t)(struct rproc *rproc,
+ struct rproc_dump_segment *segment, void *dest, size_t offset,
+ size_t size));
void qcom_add_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink,
const char *ssr_name);
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 4e1d9b08def4..7418f0e61943 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -105,6 +105,24 @@ struct qcom_adsp {
struct qcom_scm_pas_metadata dtb_pas_metadata;
};
+void adsp_segment_dump(struct rproc *rproc, struct rproc_dump_segment *segment,
+ void *dest, size_t offset, size_t size)
+{
+ struct qcom_adsp *adsp = rproc->priv;
+ int total_offset;
+
+ total_offset = segment->da + segment->offset + offset - adsp->mem_phys;
+ if (total_offset < 0 || total_offset + size > adsp->mem_size) {
+ dev_err(adsp->dev,
+ "invalid copy request for segment %pad with offset %zu and size %zu)\n",
+ &segment->da, offset, size);
+ memset(dest, 0xff, size);
+ return;
+ }
+
+ memcpy_fromio(dest, adsp->mem_region + total_offset, size);
+}
+
static void adsp_minidump(struct rproc *rproc)
{
struct qcom_adsp *adsp = rproc->priv;
@@ -112,7 +130,7 @@ static void adsp_minidump(struct rproc *rproc)
if (rproc->dump_conf == RPROC_COREDUMP_DISABLED)
return;
- qcom_minidump(rproc, adsp->minidump_id);
+ qcom_minidump(rproc, adsp->minidump_id, adsp_segment_dump);
}
static int adsp_pds_enable(struct qcom_adsp *adsp, struct device **pds,