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// SPDX-License-Identifier: MIT
/*
* Copyright © 2022 Intel Corporation
*/
#include "xe_guc_log.h"
#include <drm/drm_managed.h>
#include <linux/vmalloc.h>
#include "xe_bo.h"
#include "xe_devcoredump.h"
#include "xe_gt.h"
#include "xe_gt_printk.h"
#include "xe_map.h"
#include "xe_module.h"
static struct xe_gt *
log_to_gt(struct xe_guc_log *log)
{
return container_of(log, struct xe_gt, uc.guc.log);
}
static struct xe_device *
log_to_xe(struct xe_guc_log *log)
{
return gt_to_xe(log_to_gt(log));
}
static size_t guc_log_size(void)
{
/*
* GuC Log buffer Layout
*
* +===============================+ 00B
* | Crash dump state header |
* +-------------------------------+ 32B
* | Debug state header |
* +-------------------------------+ 64B
* | Capture state header |
* +-------------------------------+ 96B
* | |
* +===============================+ PAGE_SIZE (4KB)
* | Crash Dump logs |
* +===============================+ + CRASH_SIZE
* | Debug logs |
* +===============================+ + DEBUG_SIZE
* | Capture logs |
* +===============================+ + CAPTURE_SIZE
*/
return PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE +
CAPTURE_BUFFER_SIZE;
}
/**
* xe_guc_log_print - dump a copy of the GuC log to some useful location
* @log: GuC log structure
* @p: the printer object to output to
*/
void xe_guc_log_print(struct xe_guc_log *log, struct drm_printer *p)
{
struct xe_device *xe = log_to_xe(log);
size_t size;
void *copy;
if (!log->bo) {
drm_puts(p, "GuC log buffer not allocated");
return;
}
size = log->bo->size;
copy = vmalloc(size);
if (!copy) {
drm_printf(p, "Failed to allocate %zu", size);
return;
}
xe_map_memcpy_from(xe, copy, &log->bo->vmap, 0, size);
xe_print_blob_ascii85(p, "Log data", '\n', copy, 0, size);
vfree(copy);
}
int xe_guc_log_init(struct xe_guc_log *log)
{
struct xe_device *xe = log_to_xe(log);
struct xe_tile *tile = gt_to_tile(log_to_gt(log));
struct xe_bo *bo;
bo = xe_managed_bo_create_pin_map(xe, tile, guc_log_size(),
XE_BO_FLAG_SYSTEM |
XE_BO_FLAG_GGTT |
XE_BO_FLAG_GGTT_INVALIDATE);
if (IS_ERR(bo))
return PTR_ERR(bo);
xe_map_memset(xe, &bo->vmap, 0, 0, guc_log_size());
log->bo = bo;
log->level = xe_modparam.guc_log_level;
return 0;
}
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