summaryrefslogtreecommitdiff
path: root/drivers/edgetpu/abrolhos-debug-dump.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/edgetpu/abrolhos-debug-dump.c')
-rw-r--r--drivers/edgetpu/abrolhos-debug-dump.c207
1 files changed, 0 insertions, 207 deletions
diff --git a/drivers/edgetpu/abrolhos-debug-dump.c b/drivers/edgetpu/abrolhos-debug-dump.c
index a56808c..92c3e1a 100644
--- a/drivers/edgetpu/abrolhos-debug-dump.c
+++ b/drivers/edgetpu/abrolhos-debug-dump.c
@@ -1,216 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
-/*
- * Implements chip specific details of debug dump memory initialization and SSCD registration.
- *
- * Copyright (C) 2021 Google, Inc.
- */
#if IS_ENABLED(CONFIG_SUBSYSTEM_COREDUMP) || IS_ENABLED(CONFIG_EDGETPU_TEST)
-#include <linux/platform_device.h>
-
-#include "abrolhos-platform.h"
-
#include "mobile-debug-dump.c"
-static void sscd_release(struct device *dev)
-{
- pr_debug(DRIVER_NAME " release\n");
-}
-static struct sscd_platform_data sscd_pdata;
-static struct platform_device sscd_dev = {
- .name = DRIVER_NAME,
- .driver_override = SSCD_NAME,
- .id = -1,
- .dev = {
- .platform_data = &sscd_pdata,
- .release = sscd_release,
- },
-};
-
-static int abrolhos_sscd_generate_coredump(void *p_etdev, void *p_dump_setup)
-{
- struct edgetpu_dev *etdev;
- struct edgetpu_debug_dump_setup *dump_setup;
- struct abrolhos_platform_dev *pdev;
- struct sscd_platform_data *pdata;
- struct platform_device *sscd_dev;
- struct sscd_segment *segs;
- struct edgetpu_debug_dump *debug_dump;
- struct edgetpu_crash_reason *crash_reason;
- struct edgetpu_dump_segment *dump_seg;
- struct edgetpu_device_group *group;
- struct edgetpu_device_group **groups;
- struct edgetpu_list_group *g;
- struct mobile_sscd_mappings_dump *mappings_dump = NULL;
- char crash_info[128];
- int sscd_dump_segments_num;
- int i, ret;
- size_t num_groups = 0, num_queues = 0;
- u64 offset;
-
- if (!p_etdev || !p_dump_setup)
- return -EINVAL;
-
- etdev = (struct edgetpu_dev *)p_etdev;
- dump_setup = (struct edgetpu_debug_dump_setup *)p_dump_setup;
- pdev = to_abrolhos_dev(etdev);
- pdata = (struct sscd_platform_data *)pdev->sscd_info.pdata;
- sscd_dev = (struct platform_device *)pdev->sscd_info.dev;
- if (!pdata->sscd_report) {
- etdev_err(etdev, "failed to generate coredump");
- return -ENOENT;
- }
-
- debug_dump = (struct edgetpu_debug_dump *)(dump_setup + 1);
-
- /* Populate crash reason */
- crash_reason = (struct edgetpu_crash_reason *)((u8 *)dump_setup +
- debug_dump->crash_reason_offset);
- scnprintf(crash_info, sizeof(crash_info),
- "[edgetpu_coredump] error code: %#llx", crash_reason->code);
-
- mutex_lock(&etdev->groups_lock);
- groups = kmalloc_array(etdev->n_groups, sizeof(*groups), GFP_KERNEL);
- if (!groups) {
- mutex_unlock(&etdev->groups_lock);
- return -ENOMEM;
- }
-
- etdev_for_each_group(etdev, g, group) {
- if (edgetpu_device_group_is_disbanded(group))
- continue;
- groups[num_groups++] = edgetpu_device_group_get(group);
- }
- mutex_unlock(&etdev->groups_lock);
-
- /* Allocate memory for dump segments */
- sscd_dump_segments_num = debug_dump->dump_segments_num;
- sscd_dump_segments_num += 2 * num_groups; /* VII cmd and resp queues */
- sscd_dump_segments_num += num_groups ? 1 : 0; /* Mappings info */
- sscd_dump_segments_num += 2; /* KCI cmd and resp queues */
-
- segs = kmalloc_array(sscd_dump_segments_num,
- sizeof(struct sscd_segment),
- GFP_KERNEL);
- if (!segs) {
- ret = -ENOMEM;
- goto out_sscd_generate_coredump;
- }
-
- /* Populate sscd segments */
- dump_seg = (struct edgetpu_dump_segment *)((u8 *)dump_setup +
- debug_dump->dump_segments_offset);
- offset = debug_dump->dump_segments_offset;
- for (i = 0; i < debug_dump->dump_segments_num; i++) {
- segs[i].addr = dump_seg;
- segs[i].size = sizeof(struct edgetpu_dump_segment) + dump_seg->size;
- segs[i].paddr = (void *)(etdev->debug_dump_mem.tpu_addr +
- offset);
- segs[i].vaddr = (void *)(etdev->debug_dump_mem.vaddr +
- offset);
- offset += sizeof(struct edgetpu_dump_segment) + dump_seg->size;
- dump_seg = (struct edgetpu_dump_segment *)
- ((u8 *)dump_setup + ALIGN(offset, sizeof(uint64_t)));
- }
-
- if (num_groups) {
- mappings_dump = mobile_sscd_collect_mappings_segment(groups, num_groups, &segs[i]);
- if (!mappings_dump) {
- ret = -ENOMEM;
- goto out_sscd_generate_coredump;
- }
- i++;
- }
-
- num_queues = mobile_sscd_collect_cmd_resp_queues(etdev, groups, num_groups, &segs[i]);
-
- /* Adjust num of segments as some groups may have a detached mailbox */
- sscd_dump_segments_num -= (2 * num_groups + 2); /* Subtract number of VII and KCI queues
- * according to num_groups.
- */
- sscd_dump_segments_num += num_queues; /* Add actual number of valid VII and KCI queues */
-
- /* Pass dump data to SSCD daemon */
- etdev_dbg(etdev, "report: %d segments", sscd_dump_segments_num);
- ret = pdata->sscd_report(sscd_dev, segs, sscd_dump_segments_num,
- SSCD_FLAGS_ELFARM64HDR, crash_info);
-out_sscd_generate_coredump:
- for (i = 0; i < num_groups; i++)
- edgetpu_device_group_put(groups[i]);
- kfree(mappings_dump);
- kfree(segs);
- kfree(groups);
-
- return ret;
-}
-
-int edgetpu_debug_dump_init(struct edgetpu_dev *etdev)
-{
- size_t size;
- int ret;
- struct edgetpu_debug_dump_setup *dump_setup;
- struct abrolhos_platform_dev *pdev;
-
- pdev = to_abrolhos_dev(etdev);
-
- size = EDGETPU_DEBUG_DUMP_MEM_SIZE;
-
- /* Register SSCD platform device */
- ret = platform_device_register(&sscd_dev);
- if (ret) {
- etdev_err(etdev, "SSCD platform device registration failed: %d", ret);
- return ret;
- }
- /*
- * Allocate a buffer for various dump segments
- */
- ret = edgetpu_alloc_coherent(etdev, size, &etdev->debug_dump_mem,
- EDGETPU_CONTEXT_KCI);
- if (ret) {
- etdev_err(etdev, "Debug dump seg alloc failed");
- etdev->debug_dump_mem.vaddr = NULL;
- goto out_unregister_platform;
- }
- dump_setup =
- (struct edgetpu_debug_dump_setup *)etdev->debug_dump_mem.vaddr;
- memset(dump_setup, 0, size);
- dump_setup->dump_mem_size = size;
-
- /*
- * Allocate memory for debug dump handlers
- */
- etdev->debug_dump_handlers = kcalloc(DUMP_REASON_NUM,
- sizeof(*etdev->debug_dump_handlers),
- GFP_KERNEL);
- if (!etdev->debug_dump_handlers)
- return -ENOMEM;
- etdev->debug_dump_handlers[DUMP_REASON_REQ_BY_USER] =
- abrolhos_sscd_generate_coredump;
-
- pdev->sscd_info.pdata = &sscd_pdata;
- pdev->sscd_info.dev = &sscd_dev;
- return ret;
-out_unregister_platform:
- platform_device_unregister(&sscd_dev);
- return ret;
-}
-
-void edgetpu_debug_dump_exit(struct edgetpu_dev *etdev)
-{
- if (!etdev->debug_dump_mem.vaddr) {
- etdev_dbg(etdev, "Debug dump not allocated");
- return;
- }
- /*
- * Free the memory assigned for debug dump
- */
- edgetpu_free_coherent(etdev, &etdev->debug_dump_mem,
- EDGETPU_CONTEXT_KCI);
- kfree(etdev->debug_dump_handlers);
- platform_device_unregister(&sscd_dev);
-}
-
#else /* IS_ENABLED(CONFIG_SUBSYSTEM_COREDUMP) || IS_ENABLED(CONFIG_EDGETPU_TEST) */
#include "edgetpu-debug-dump.c"
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-24 03:12:06 +0000