26be7cd8aa
Expose new sysfs to program and retrieve media freq factor. Factor values of 0 (dynamic), 0.5 and 1.0 are supported via a u8.8 fixed point representation (corresponding to integer values of 0, 128 and 256 respectively). Media freq factor is converted to media_ratio_mode for GuC. It is programmed into GuC using H2G SLPC interface. It is retrieved from GuC through a register read. A cached media_ratio_mode is maintained to preserve set values across GuC resets. This patch adds the following sysfs files to gt/gtN sysfs: * media_freq_factor * media_freq_factor.scale v2: Minor wording change in drm_warn (Tvrtko) Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by: Dale B Stimson <dale.b.stimson@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/7ad7578335d8af9cba047b4bcf33d1887453d2e1.1653484574.git.ashutosh.dixit@intel.com
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#ifndef _INTEL_GUC_SLPC_H_
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#define _INTEL_GUC_SLPC_H_
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#include "intel_guc_submission.h"
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#include "intel_guc_slpc_types.h"
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struct intel_gt;
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struct drm_printer;
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static inline bool intel_guc_slpc_is_supported(struct intel_guc *guc)
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{
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return guc->slpc.supported;
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}
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static inline bool intel_guc_slpc_is_wanted(struct intel_guc *guc)
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{
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return guc->slpc.selected;
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}
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static inline bool intel_guc_slpc_is_used(struct intel_guc *guc)
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{
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return intel_guc_submission_is_used(guc) && intel_guc_slpc_is_wanted(guc);
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}
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void intel_guc_slpc_init_early(struct intel_guc_slpc *slpc);
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int intel_guc_slpc_init(struct intel_guc_slpc *slpc);
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int intel_guc_slpc_enable(struct intel_guc_slpc *slpc);
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void intel_guc_slpc_fini(struct intel_guc_slpc *slpc);
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int intel_guc_slpc_set_max_freq(struct intel_guc_slpc *slpc, u32 val);
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int intel_guc_slpc_set_min_freq(struct intel_guc_slpc *slpc, u32 val);
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int intel_guc_slpc_set_boost_freq(struct intel_guc_slpc *slpc, u32 val);
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int intel_guc_slpc_get_max_freq(struct intel_guc_slpc *slpc, u32 *val);
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int intel_guc_slpc_get_min_freq(struct intel_guc_slpc *slpc, u32 *val);
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int intel_guc_slpc_print_info(struct intel_guc_slpc *slpc, struct drm_printer *p);
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int intel_guc_slpc_set_media_ratio_mode(struct intel_guc_slpc *slpc, u32 val);
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void intel_guc_pm_intrmsk_enable(struct intel_gt *gt);
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void intel_guc_slpc_boost(struct intel_guc_slpc *slpc);
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void intel_guc_slpc_dec_waiters(struct intel_guc_slpc *slpc);
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#endif
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