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Merge "pstore: Register pstore reserved memory into Minidump"

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qctecmdr 2020-09-09 15:28:46 -07:00 • committed by Gerrit - the friendly Code Review server
commit 5765b29efd
1 changed files with 51 additions and 0 deletions
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51
fs/pstore/ram.c
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@ -21,6 +21,7 @@
#include <linux/pstore_ram.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <soc/qcom/minidump.h>
#define RAMOOPS_KERNMSG_HDR "===="
#define MIN_MEM_SIZE 4096UL
@ -97,6 +98,54 @@ struct ramoops_context {
static struct platform_device *dummy;
static void register_minidump(struct ramoops_context *cxt)
{
int i;
struct md_region pstore_entry;
struct persistent_ram_zone *prz;
for (i = 0; i < cxt->max_dump_cnt; i++) {
prz = cxt->dprzs[i];
scnprintf(pstore_entry.name, sizeof(pstore_entry.name),
"KDMESG%d", i);
pstore_entry.virt_addr = (u64)(prz->vaddr);
pstore_entry.phys_addr = prz->paddr;
pstore_entry.size = prz->size;
if (msm_minidump_add_region(&pstore_entry) < 0)
pr_err("failed to add dmesg in minidump\n");
}
if (cxt->console_size) {
prz = cxt->cprz;
strlcpy(pstore_entry.name, "KCONSOLE",
sizeof(pstore_entry.name));
pstore_entry.virt_addr = (u64)(prz->vaddr);
pstore_entry.phys_addr = prz->paddr;
pstore_entry.size = prz->size;
if (msm_minidump_add_region(&pstore_entry) < 0)
pr_err("failed to add console in minidump\n");
}
for (i = 0; i < cxt->max_ftrace_cnt; i++) {
prz = cxt->fprzs[i];
scnprintf(pstore_entry.name, sizeof(pstore_entry.name),
"KFTRACE%d", i);
pstore_entry.virt_addr = (u64)(prz->vaddr);
pstore_entry.phys_addr = prz->paddr;
pstore_entry.size = prz->size;
if (msm_minidump_add_region(&pstore_entry) < 0)
pr_err("failed to add ftrace in minidump\n");
}
if (cxt->pmsg_size) {
prz = cxt->mprz;
strlcpy(pstore_entry.name, "KPMSG",
sizeof(pstore_entry.name));
pstore_entry.virt_addr = (u64)(prz->vaddr);
pstore_entry.phys_addr = prz->paddr;
pstore_entry.size = prz->size;
if (msm_minidump_add_region(&pstore_entry) < 0)
pr_err("failed to add pmsg in minidump\n");
}
}
static int ramoops_pstore_open(struct pstore_info *psi)
{
struct ramoops_context *cxt = psi->data;
@ -875,6 +924,8 @@ static int ramoops_probe(struct platform_device *pdev)
cxt->size, (unsigned long long)cxt->phys_addr,
cxt->ecc_info.ecc_size);
register_minidump(cxt);
return 0;
fail_buf: