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gpu: host1x: Add debug support

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Add support for host1x debugging. Adds debugfs entries, and dumps
channel state to UART in case of stuck job.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
This commit is contained in:
Terje Bergstrom
2013-03-22 16:34:04 +02:00
committed by Thierry Reding
parent 6579324a41
commit 6236451d83
15 changed files with 807 additions and 0 deletions
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5
drivers/gpu/host1x/syncpt.c
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@@ -25,6 +25,7 @@
#include "syncpt.h"
#include "dev.h"
#include "intr.h"
#include "debug.h"
#define SYNCPT_CHECK_PERIOD (2 * HZ)
#define MAX_STUCK_CHECK_COUNT 15
@@ -231,6 +232,10 @@ int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh, long timeout,
"%s: syncpoint id %d (%s) stuck waiting %d, timeout=%ld\n",
current->comm, sp->id, sp->name,
thresh, timeout);
host1x_debug_dump_syncpts(sp->host);
if (check_count == MAX_STUCK_CHECK_COUNT)
host1x_debug_dump(sp->host);
check_count++;
}
}