From: Eric Huang <[email protected]> used for calculating memory clocks in powerplay.
v2: handle endian swapping of atom data (Alex) Signed-off-by: Eric Huang <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c | 31 ++++++++++++++++++++++++ drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h | 10 ++++++++ 2 files changed, 41 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c index d58be7eb8256..cf99c5eaf080 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c @@ -23,6 +23,7 @@ #include "pp_debug.h" #include <linux/module.h> #include <linux/slab.h> +#include <linux/delay.h> #include "atom.h" #include "ppatomctrl.h" #include "atombios.h" @@ -314,6 +315,36 @@ int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr, return result; } +int atomctrl_get_memory_pll_dividers_ai(struct pp_hwmgr *hwmgr, + uint32_t clock_value, + pp_atomctrl_memory_clock_param_ai *mpll_param) +{ + struct amdgpu_device *adev = hwmgr->adev; + COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_3 mpll_parameters = {0}; + int result; + + mpll_parameters.ulClock.ulClock = cpu_to_le32(clock_value); + + result = amdgpu_atom_execute_table(adev->mode_info.atom_context, + GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam), + (uint32_t *)&mpll_parameters); + + /* VEGAM's mpll takes sometime to finish computing */ + udelay(10); + + if (!result) { + mpll_param->ulMclk_fcw_int = + le16_to_cpu(mpll_parameters.usMclk_fcw_int); + mpll_param->ulMclk_fcw_frac = + le16_to_cpu(mpll_parameters.usMclk_fcw_frac); + mpll_param->ulClock = + le32_to_cpu(mpll_parameters.ulClock.ulClock); + mpll_param->ulPostDiv = mpll_parameters.ulClock.ucPostDiv; + } + + return result; +} + int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr, uint32_t clock_value, pp_atomctrl_clock_dividers_kong *dividers) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h index e1b5d6b0b548..3ee54f182943 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h @@ -146,6 +146,14 @@ struct pp_atomctrl_memory_clock_param { }; typedef struct pp_atomctrl_memory_clock_param pp_atomctrl_memory_clock_param; +struct pp_atomctrl_memory_clock_param_ai { + uint32_t ulClock; + uint32_t ulPostDiv; + uint16_t ulMclk_fcw_frac; + uint16_t ulMclk_fcw_int; +}; +typedef struct pp_atomctrl_memory_clock_param_ai pp_atomctrl_memory_clock_param_ai; + struct pp_atomctrl_internal_ss_info { uint32_t speed_spectrum_percentage; /* in 1/100 percentage */ uint32_t speed_spectrum_rate; /* in KHz */ @@ -295,6 +303,8 @@ extern bool atomctrl_is_voltage_controlled_by_gpio_v3(struct pp_hwmgr *hwmgr, ui extern int atomctrl_get_voltage_table_v3(struct pp_hwmgr *hwmgr, uint8_t voltage_type, uint8_t voltage_mode, pp_atomctrl_voltage_table *voltage_table); extern int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr, uint32_t clock_value, pp_atomctrl_memory_clock_param *mpll_param); +extern int atomctrl_get_memory_pll_dividers_ai(struct pp_hwmgr *hwmgr, + uint32_t clock_value, pp_atomctrl_memory_clock_param_ai *mpll_param); extern int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr, uint32_t clock_value, pp_atomctrl_clock_dividers_kong *dividers); -- 2.13.6 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
