1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2022 Intel Corporation 4 */ 5 6 #ifndef _XE_GUC_PC_TYPES_H_ 7 #define _XE_GUC_PC_TYPES_H_ 8 9 #include <linux/mutex.h> 10 #include <linux/types.h> 11 12 /** 13 * struct xe_guc_pc - GuC Power Conservation (PC) 14 */ 15 struct xe_guc_pc { 16 /** @bo: GGTT buffer object that is shared with GuC PC */ 17 struct xe_bo *bo; 18 /** @flush_freq_limit: 1 when max freq changes are limited by driver */ 19 atomic_t flush_freq_limit; 20 /** @rp0_freq: HW RP0 frequency - The Maximum one */ 21 u32 rp0_freq; 22 /** @rpn_freq: HW RPN frequency - The Minimum one */ 23 u32 rpn_freq; 24 /** @user_requested_min: Stash the minimum requested freq by user */ 25 u32 user_requested_min; 26 /** @user_requested_max: Stash the maximum requested freq by user */ 27 u32 user_requested_max; 28 /** @stashed_min_freq: Stash the current minimum freq */ 29 u32 stashed_min_freq; 30 /** @stashed_max_freq: Stash the current maximum freq */ 31 u32 stashed_max_freq; 32 /** @freq_lock: Let's protect the frequencies */ 33 struct mutex freq_lock; 34 /** @freq_ready: Only handle freq changes, if they are really ready */ 35 bool freq_ready; 36 /** @power_profile: Base or power_saving profile */ 37 u32 power_profile; 38 }; 39 40 #endif /* _XE_GUC_PC_TYPES_H_ */ 41