diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_reset.h')
-rw-r--r-- | drivers/gpu/drm/i915/gt/intel_reset.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.h b/drivers/gpu/drm/i915/gt/intel_reset.h new file mode 100644 index 0000000000..25c975b6e8 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_reset.h @@ -0,0 +1,81 @@ +/* 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); +int __intel_engine_reset_bh(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); +int __must_check intel_gt_reset_lock_interruptible(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. + * Same thing for unset_wedged_on_fini. + */ +void intel_gt_set_wedged_on_init(struct intel_gt *gt); +void intel_gt_set_wedged_on_fini(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))) + +bool intel_has_gpu_reset(const struct intel_gt *gt); +bool intel_has_reset_engine(const struct intel_gt *gt); + +#endif /* I915_RESET_H */ |