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/*
* Copyright 2017 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: AMD
*
*/
#ifndef DM_PP_SMU_IF__H
#define DM_PP_SMU_IF__H
/*
* interface to PPLIB/SMU to setup clocks and pstate requirements on SoC
*/
enum pp_smu_ver {
/*
* PP_SMU_INTERFACE_X should be interpreted as the interface defined
* starting from X, where X is some family of ASICs. This is as
* opposed to interfaces used only for X. There will be some degree
* of interface sharing between families of ASIcs.
*/
PP_SMU_UNSUPPORTED,
PP_SMU_VER_RV
};
struct pp_smu {
enum pp_smu_ver ver;
const void *pp;
/*
* interim extra handle for backwards compatibility
* as some existing functionality not yet implemented
* by ppsmu
*/
const void *dm;
};
struct pp_smu_wm_set_range {
unsigned int wm_inst;
uint32_t min_fill_clk_khz;
uint32_t max_fill_clk_khz;
uint32_t min_drain_clk_khz;
uint32_t max_drain_clk_khz;
};
#define MAX_WATERMARK_SETS 4
struct pp_smu_wm_range_sets {
unsigned int num_reader_wm_sets;
struct pp_smu_wm_set_range reader_wm_sets[MAX_WATERMARK_SETS];
unsigned int num_writer_wm_sets;
struct pp_smu_wm_set_range writer_wm_sets[MAX_WATERMARK_SETS];
};
struct pp_smu_display_requirement_rv {
/* PPSMC_MSG_SetDisplayCount: count
* 0 triggers S0i2 optimization
*/
unsigned int display_count;
/* PPSMC_MSG_SetHardMinFclkByFreq: khz
* FCLK will vary with DPM, but never below requested hard min
*/
unsigned int hard_min_fclk_khz;
/* PPSMC_MSG_SetHardMinDcefclkByFreq: khz
* fixed clock at requested freq, either from FCH bypass or DFS
*/
unsigned int hard_min_dcefclk_khz;
/* PPSMC_MSG_SetMinDeepSleepDcefclk: mhz
* when DF is in cstate, dcf clock is further divided down
* to just above given frequency
*/
unsigned int min_deep_sleep_dcefclk_mhz;
};
struct pp_smu_funcs_rv {
struct pp_smu pp_smu;
/* PPSMC_MSG_SetDisplayCount
* 0 triggers S0i2 optimization
*/
void (*set_display_count)(struct pp_smu *pp, int count);
/* which SMU message? are reader and writer WM separate SMU msg? */
void (*set_wm_ranges)(struct pp_smu *pp,
struct pp_smu_wm_range_sets *ranges);
/* PPSMC_MSG_SetHardMinDcfclkByFreq
* fixed clock at requested freq, either from FCH bypass or DFS
*/
void (*set_hard_min_dcfclk_by_freq)(struct pp_smu *pp, int khz);
/* PPSMC_MSG_SetMinDeepSleepDcfclk
* when DF is in cstate, dcf clock is further divided down
* to just above given frequency
*/
void (*set_min_deep_sleep_dcfclk)(struct pp_smu *pp, int mhz);
/* PPSMC_MSG_SetHardMinFclkByFreq
* FCLK will vary with DPM, but never below requested hard min
*/
void (*set_hard_min_fclk_by_freq)(struct pp_smu *pp, int khz);
/* PPSMC_MSG_SetHardMinSocclkByFreq
* Needed for DWB support
*/
void (*set_hard_min_socclk_by_freq)(struct pp_smu *pp, int khz);
/* PME w/a */
void (*set_pme_wa_enable)(struct pp_smu *pp);
/*
* Legacy functions. Used for backwards comp. with existing
* PPlib code.
*/
void (*set_display_requirement)(struct pp_smu *pp,
struct pp_smu_display_requirement_rv *req);
};
struct pp_smu_funcs {
struct pp_smu ctx;
union {
struct pp_smu_funcs_rv rv_funcs;
};
};
#endif /* DM_PP_SMU_IF__H */
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