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alistair23-linux/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h

150 lines
3.9 KiB
C

/*
* 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
*/
typedef bool BOOLEAN;
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,
PP_SMU_VER_MAX
};
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;
};
enum pp_smu_status {
PP_SMU_RESULT_UNDEFINED = 0,
PP_SMU_RESULT_OK = 1,
PP_SMU_RESULT_FAIL,
PP_SMU_RESULT_UNSUPPORTED
};
#define PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN 0x0
#define PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX 0xFFFF
enum wm_type {
WM_TYPE_PSTATE_CHG = 0,
WM_TYPE_RETRAINING = 1,
};
/* This structure is a copy of WatermarkRowGeneric_t defined by smuxx_driver_if.h*/
struct pp_smu_wm_set_range {
uint16_t min_fill_clk_mhz;
uint16_t max_fill_clk_mhz;
uint16_t min_drain_clk_mhz;
uint16_t max_drain_clk_mhz;
uint8_t wm_inst;
uint8_t wm_type;
};
#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_funcs_rv {
struct pp_smu pp_smu;
/* PPSMC_MSG_SetDisplayCount
* 0 triggers S0i2 optimization
*/
void (*set_display_count)(struct pp_smu *pp, int count);
/* reader and writer WM's are sent together as part of one table*/
/*
* PPSMC_MSG_SetDriverDramAddrHigh
* PPSMC_MSG_SetDriverDramAddrLow
* PPSMC_MSG_TransferTableDram2Smu
*
* */
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 mhz);
/* 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 mhz);
/* PPSMC_MSG_SetHardMinSocclkByFreq
* Needed for DWB support
*/
void (*set_hard_min_socclk_by_freq)(struct pp_smu *pp, int mhz);
/* PME w/a */
void (*set_pme_wa_enable)(struct pp_smu *pp);
};
struct pp_smu_funcs {
struct pp_smu ctx;
union {
struct pp_smu_funcs_rv rv_funcs;
};
};
#endif /* DM_PP_SMU_IF__H */