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Commit 4d758b15 authored by Jeya R's avatar Jeya R Committed by Gerrit - the friendly Code Review server
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msm: ADSPRPC: Register CMA region for minidump 



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

Change-Id: I9b56b0a7a31347087e17702c50620a3f23f973fc
Acked-by: default avatarEkansh Gupta <ekangupt@qti.qualcomm.com>
Signed-off-by: default avatarJeya R <jeyr@codeaurora.org>
parent e8b3c550

drivers/char/adsprpc.c

+25 −0
Original line number Diff line number Diff line
@@ -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) {