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drm/xe: Add GuC CT snapshot to xe_devcoredump.

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Let's start to move our existent logs to devcoredump one by
one. Any format change should come on follow-up work.

v2: Rebase and add the dma_fence locking annotation here.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
This commit is contained in:
Rodrigo Vivi 2023-05-16 10:54:10 -04:00
parent 513260dfd1
commit 5ed5344632
2 changed files with 21 additions and 0 deletions
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17
drivers/gpu/drm/xe/xe_devcoredump.c
View File

@ -11,6 +11,7 @@
#include "xe_engine.h"
#include "xe_gt.h"
#include "xe_guc_ct.h"
/**
* DOC: Xe device coredump
@ -48,6 +49,11 @@ static struct xe_device *coredump_to_xe(const struct xe_devcoredump *coredump)
return container_of(coredump, struct xe_device, devcoredump);
}
static struct xe_guc *engine_to_guc(struct xe_engine *e)
{
return &e->gt->uc.guc;
}
static ssize_t xe_devcoredump_read(char *buffer, loff_t offset,
size_t count, void *data, size_t datalen)
{
@ -78,6 +84,9 @@ static ssize_t xe_devcoredump_read(char *buffer, loff_t offset,
ts = ktime_to_timespec64(ss->boot_time);
drm_printf(&p, "Uptime: %lld.%09ld\n", ts.tv_sec, ts.tv_nsec);
drm_printf(&p, "\n**** GuC CT ****\n");
xe_guc_ct_snapshot_print(coredump->snapshot.ct, &p);
return count - iter.remain;
}
@ -89,6 +98,8 @@ static void xe_devcoredump_free(void *data)
if (!data || !coredump_to_xe(coredump))
return;
xe_guc_ct_snapshot_free(coredump->snapshot.ct);
coredump->captured = false;
drm_info(&coredump_to_xe(coredump)->drm,
"Xe device coredump has been deleted.\n");
@ -98,9 +109,15 @@ static void devcoredump_snapshot(struct xe_devcoredump *coredump,
struct xe_engine *e)
{
struct xe_devcoredump_snapshot *ss = &coredump->snapshot;
struct xe_guc *guc = engine_to_guc(e);
bool cookie;
ss->snapshot_time = ktime_get_real();
ss->boot_time = ktime_get_boottime();
cookie = dma_fence_begin_signalling();
coredump->snapshot.ct = xe_guc_ct_snapshot_capture(&guc->ct, true);
dma_fence_end_signalling(cookie);
}
/**

4
drivers/gpu/drm/xe/xe_devcoredump_types.h
View File

@ -23,6 +23,10 @@ struct xe_devcoredump_snapshot {
ktime_t snapshot_time;
/** @boot_time: Relative boot time so the uptime can be calculated. */
ktime_t boot_time;
/* GuC snapshots */
/** @ct_snapshot: GuC CT snapshot */
struct xe_guc_ct_snapshot *ct;
};
/**