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msm: kgsl: Add GPU snapshot to minidump

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Add support for dumping GPU snapshot in minidump. Register
snapshot region with minidump table.

Change-Id: I1ccf0a0b7f6f8f57b3e4b034f28ce3575b63001c
Signed-off-by: Rohan Sethi <rohsethi@codeaurora.org>
This commit is contained in:
Rohan Sethi 2021-01-08 14:45:08 +05:30 • committed by Gerrit - the friendly Code Review server
commit 6a62cbaada
1 changed files with 21 additions and 1 deletions
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22
drivers/gpu/msm/kgsl_snapshot.c
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@ -1,11 +1,12 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/utsname.h>
#include <soc/qcom/minidump.h>
#include "adreno_cp_parser.h"
#include "kgsl_device.h"
@ -29,6 +30,23 @@ struct snapshot_obj_itr {
size_t write; /* Bytes written so far */
};
static void add_to_minidump(struct kgsl_device *device)
{
struct md_region md_entry;
int ret;
if (!msm_minidump_enabled())
return;
scnprintf(md_entry.name, sizeof(md_entry.name), "GPU_SNAPSHOT");
md_entry.virt_addr = (u64)(device->snapshot_memory.ptr);
md_entry.phys_addr = __pa(device->snapshot_memory.ptr);
md_entry.size = device->snapshot->size;
ret = msm_minidump_add_region(&md_entry);
if (ret < 0)
dev_err(device->dev, "Failed to register snapshot with minidump: %d\n", ret);
}
static void obj_itr_init(struct snapshot_obj_itr *itr, u8 *buf,
loff_t offset, size_t remain)
{
@ -767,6 +785,8 @@ void kgsl_device_snapshot(struct kgsl_device *device,
dev_err(device->dev, "%s snapshot created at pa %pa++0x%zx\n",
gmu_fault ? "GMU" : "GPU", &pa, snapshot->size);
add_to_minidump(device);
if (device->skip_ib_capture)
BUG_ON(device->force_panic);