3735040978
If BIOS enables/disables C6, i915 should do the same. Also, retain this value across driver reloads. This is needed only for MTL as of now due to an existing bug in OA which needs C6 disabled for it to function. BIOS behavior is also different across platforms in terms of how C6 is enabled. Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230323225901.3743681-3-umesh.nerlige.ramappa@intel.com
32 lines
881 B
C
32 lines
881 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef INTEL_RC6_H
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#define INTEL_RC6_H
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#include <linux/types.h>
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enum intel_rc6_res_type;
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struct intel_rc6;
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struct seq_file;
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void intel_rc6_init(struct intel_rc6 *rc6);
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void intel_rc6_fini(struct intel_rc6 *rc6);
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void intel_rc6_unpark(struct intel_rc6 *rc6);
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void intel_rc6_park(struct intel_rc6 *rc6);
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void intel_rc6_sanitize(struct intel_rc6 *rc6);
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void intel_rc6_enable(struct intel_rc6 *rc6);
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void intel_rc6_disable(struct intel_rc6 *rc6);
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u64 intel_rc6_residency_ns(struct intel_rc6 *rc6, enum intel_rc6_res_type id);
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u64 intel_rc6_residency_us(struct intel_rc6 *rc6, enum intel_rc6_res_type id);
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void intel_rc6_print_residency(struct seq_file *m, const char *title,
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enum intel_rc6_res_type id);
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bool intel_check_bios_c6_setup(struct intel_rc6 *rc6);
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#endif /* INTEL_RC6_H */
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