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1da0702c17
On PVC unloading followed by reloading the module often results in a
completely dead machine (seems to be plaguing CI). Resetting the GuC
like we do at load seems to cure it at least when locally testing this.
v2:
- Move pc_fini into guc_fini. We want to do the GuC reset just after
calling pc_fini, otherwise we encounter communication failures. It
also seems like a good idea to do the reset before we start releasing
the various other GuC resources. In the case of pc_fini there is an
explicit stop, but for other stuff like logs, ads, ctb there is not.
References: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/542
References: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/597
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
21 lines
572 B
C
21 lines
572 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#ifndef _XE_GUC_PC_H_
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#define _XE_GUC_PC_H_
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#include "xe_guc_pc_types.h"
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int xe_guc_pc_init(struct xe_guc_pc *pc);
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void xe_guc_pc_fini(struct xe_guc_pc *pc);
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int xe_guc_pc_start(struct xe_guc_pc *pc);
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int xe_guc_pc_stop(struct xe_guc_pc *pc);
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int xe_guc_pc_gucrc_disable(struct xe_guc_pc *pc);
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enum xe_gt_idle_state xe_guc_pc_c_status(struct xe_guc_pc *pc);
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u64 xe_guc_pc_rc6_residency(struct xe_guc_pc *pc);
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u64 xe_guc_pc_mc6_residency(struct xe_guc_pc *pc);
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#endif /* _XE_GUC_PC_H_ */
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