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msm: ADSPRPC: Register CMA region for minidump

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Add CMA region to minidump entry during region
region create. Remove the entry when region is
unmapped.

Change-Id: I9b56b0a7a31347087e17702c50620a3f23f973fc
Acked-by: Ekansh Gupta <ekangupt@qti.qualcomm.com>
Signed-off-by: Jeya R <jeyr@codeaurora.org>
This commit is contained in:
Jeya R 2020-11-24 12:38:10 +05:30 • committed by Gerrit - the friendly Code Review server
commit 4d758b1561
1 changed files with 25 additions and 0 deletions
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25
drivers/char/adsprpc.c
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@ -45,6 +45,7 @@
#include "adsprpc_compat.h"
#include "adsprpc_shared.h"
#include <soc/qcom/ramdump.h>
#include <soc/qcom/minidump.h>
#include <linux/delay.h>
#include <linux/debugfs.h>
#include <linux/pm_qos.h>
@ -1118,6 +1119,7 @@ static void fastrpc_mmap_free(struct fastrpc_mmap *map, uint32_t flags)
struct fastrpc_file *fl;
int vmid, cid = -1, err = 0;
struct fastrpc_session_ctx *sess;
struct md_region md_entry;
if (!map)
return;
@ -1161,6 +1163,17 @@ static void fastrpc_mmap_free(struct fastrpc_mmap *map, uint32_t flags)
"failed to free remote heap allocation, device is not initialized\n");
return;
}
if (msm_minidump_enabled()) {
scnprintf(md_entry.name, sizeof(md_entry.name), "CMA_%d", fl->tgid);
md_entry.virt_addr = map->va;
md_entry.phys_addr = map->phys;
md_entry.size = map->size;
if (msm_minidump_remove_region(&md_entry) < 0) {
ADSPRPC_ERR(
"Failed to remove CMA from Minidump for tgid: %d, phys: 0x%llx, size: %zu\n",
fl->tgid, map->phys, map->size);
}
}
trace_fastrpc_dma_free(-1, map->phys, map->size);
if (map->phys) {
dma_free_attrs(me->dev, map->size, (void *)map->va,
@ -1228,6 +1241,7 @@ static int fastrpc_mmap_create(struct fastrpc_file *fl, int fd,
unsigned long flags;
int err = 0, vmid, sgl_index = 0;
struct scatterlist *sgl = NULL;
struct md_region md_entry;
VERIFY(err, cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS);
if (err) {
@ -1265,6 +1279,17 @@ static int fastrpc_mmap_create(struct fastrpc_file *fl, int fd,
map->phys = (uintptr_t)region_phys;
map->size = len;
map->va = (uintptr_t)region_vaddr;
if (msm_minidump_enabled()) {
scnprintf(md_entry.name, sizeof(md_entry.name), "CMA_%d", fl->tgid);
md_entry.virt_addr = map->va;
md_entry.phys_addr = map->phys;
md_entry.size = map->size;
if (msm_minidump_add_region(&md_entry) >= 0) {
ADSPRPC_ERR(
"Failed to add CMA to Minidump for tgid: %d, phys: 0x%llx, size: %zu\n",
fl->tgid, map->phys, map->size);
}
}
} else if (mflags == FASTRPC_DMAHANDLE_NOMAP) {
VERIFY(err, !IS_ERR_OR_NULL(map->buf = dma_buf_get(fd)));
if (err) {