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msm: camera: icp: Dump patching info in case of page faults

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Currently as part of the page fault handler we only dump the
io_bufs. This change dumps all the patched addresses for
this request as well.

CRs-Fixed: 2579908
Change-Id: If5deec0ad3a8aec82824ef55366084c31a037515
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>
This commit is contained in:
Karthik Anantha Ram
2019-11-08 17:45:22 -08:00
committed by Gerrit - the friendly Code Review server
parent 080bb2339a
commit b2e69c4df0
3 changed files with 71 additions and 2 deletions
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55
drivers/cam_utils/cam_packet_util.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/types.h>
@@ -154,6 +154,59 @@ int cam_packet_util_get_kmd_buffer(struct cam_packet *packet,
return rc;
}
void cam_packet_dump_patch_info(struct cam_packet *packet,
int32_t iommu_hdl, int32_t sec_mmu_hdl)
{
struct cam_patch_desc *patch_desc = NULL;
dma_addr_t iova_addr;
size_t dst_buf_len;
size_t src_buf_size;
int i, rc = 0;
int32_t hdl;
uintptr_t cpu_addr = 0;
uint32_t *dst_cpu_addr;
uint64_t value = 0;
patch_desc = (struct cam_patch_desc *)
((uint32_t *) &packet->payload +
packet->patch_offset/4);
for (i = 0; i < packet->num_patches; i++) {
hdl = cam_mem_is_secure_buf(patch_desc[i].src_buf_hdl) ?
sec_mmu_hdl : iommu_hdl;
rc = cam_mem_get_io_buf(patch_desc[i].src_buf_hdl,
hdl, &iova_addr, &src_buf_size);
if (rc < 0) {
CAM_ERR(CAM_UTIL,
"unable to get src buf address for hdl 0x%x",
hdl);
return;
}
rc = cam_mem_get_cpu_buf(patch_desc[i].dst_buf_hdl,
&cpu_addr, &dst_buf_len);
if (rc < 0 || !cpu_addr || (dst_buf_len == 0)) {
CAM_ERR(CAM_UTIL, "unable to get dst buf address");
return;
}
dst_cpu_addr = (uint32_t *)cpu_addr;
dst_cpu_addr = (uint32_t *)((uint8_t *)dst_cpu_addr +
patch_desc[i].dst_offset);
value = *((uint64_t *)dst_cpu_addr);
CAM_INFO(CAM_UTIL,
"i = %d src_buf 0x%llx src_hdl 0x%x src_buf_with_offset 0x%llx size 0x%llx dst %p dst_offset %u dst_hdl 0x%x value 0x%llx",
i, iova_addr, patch_desc[i].src_buf_hdl,
(iova_addr + patch_desc[i].src_offset),
src_buf_size, dst_cpu_addr,
patch_desc[i].dst_offset,
patch_desc[i].dst_buf_hdl, value);
if (!(*dst_cpu_addr))
CAM_ERR(CAM_ICP, "Null at dst addr %p", dst_cpu_addr);
}
}
int cam_packet_util_process_patches(struct cam_packet *packet,
int32_t iommu_hdl, int32_t sec_mmu_hdl)
{