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/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2008-2018 Intel Corporation
*/
#ifndef I915_RESET_H
#define I915_RESET_H
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/srcu.h>
#include "intel_engine_types.h"
#include "intel_reset_types.h"
struct i915_request;
struct intel_engine_cs;
struct intel_gt;
struct intel_guc;
void intel_gt_init_reset(struct intel_gt *gt);
void intel_gt_fini_reset(struct intel_gt *gt);
__printf(4, 5)
void intel_gt_handle_error(struct intel_gt *gt,
intel_engine_mask_t engine_mask,
unsigned long flags,
const char *fmt, ...);
#define I915_ERROR_CAPTURE BIT(0)
void intel_gt_reset(struct intel_gt *gt,
intel_engine_mask_t stalled_mask,
const char *reason);
int intel_engine_reset(struct intel_engine_cs *engine,
const char *reason);
void __i915_request_reset(struct i915_request *rq, bool guilty);
int __must_check intel_gt_reset_trylock(struct intel_gt *gt, int *srcu);
void intel_gt_reset_unlock(struct intel_gt *gt, int tag);
void intel_gt_set_wedged(struct intel_gt *gt);
bool intel_gt_unset_wedged(struct intel_gt *gt);
int intel_gt_terminally_wedged(struct intel_gt *gt);
/*
* There's no unset_wedged_on_init paired with this one.
* Once we're wedged on init, there's no going back.
*/
void intel_gt_set_wedged_on_init(struct intel_gt *gt);
int __intel_gt_reset(struct intel_gt *gt, intel_engine_mask_t engine_mask);
int intel_reset_guc(struct intel_gt *gt);
struct intel_wedge_me {
struct delayed_work work;
struct intel_gt *gt;
const char *name;
};
void __intel_init_wedge(struct intel_wedge_me *w,
struct intel_gt *gt,
long timeout,
const char *name);
void __intel_fini_wedge(struct intel_wedge_me *w);
#define intel_wedge_on_timeout(W, GT, TIMEOUT) \
for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__); \
(W)->gt; \
__intel_fini_wedge((W)))
static inline bool __intel_reset_failed(const struct intel_reset *reset)
{
GEM_BUG_ON(test_bit(I915_WEDGED_ON_INIT, &reset->flags) ?
!test_bit(I915_WEDGED, &reset->flags) : false);
return unlikely(test_bit(I915_WEDGED, &reset->flags));
}
bool intel_has_gpu_reset(const struct intel_gt *gt);
bool intel_has_reset_engine(const struct intel_gt *gt);
#endif /* I915_RESET_H */
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