From d7341ef66870fc85361d6c66edd8aee58a7a9a9b Mon Sep 17 00:00:00 2001 From: Eric Huang Date: Fri, 22 Jan 2016 12:17:41 -0500 Subject: [PATCH] drm/amd/powerplay: add some hwmgr functions for sysfs interface on Carrizo These add the interfaces for manual clock control. Reviewed-by: Alex Deucher Signed-off-by: Eric Huang Signed-off-by: Alex Deucher --- .../gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c index 0874ab42ee95..99c3d1c6ee4d 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c @@ -1700,6 +1700,54 @@ static void cz_hw_print_display_cfg( return -EINVAL; } +static int cz_force_clock_level(struct pp_hwmgr *hwmgr, + enum pp_clock_type type, int level) +{ + if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) + return -EINVAL; + + switch (type) { + case PP_SCLK: + smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, + PPSMC_MSG_SetSclkSoftMin, + (1 << level)); + smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, + PPSMC_MSG_SetSclkSoftMax, + (1 << level)); + break; + default: + break; + } + + return 0; +} + +static int cz_print_clock_levels(struct pp_hwmgr *hwmgr, + enum pp_clock_type type, char *buf) +{ + struct phm_clock_voltage_dependency_table *sclk_table = + hwmgr->dyn_state.vddc_dependency_on_sclk; + int i, now, size = 0; + + switch (type) { + case PP_SCLK: + now = PHM_GET_FIELD(cgs_read_ind_register(hwmgr->device, + CGS_IND_REG__SMC, + ixTARGET_AND_CURRENT_PROFILE_INDEX), + TARGET_AND_CURRENT_PROFILE_INDEX, + CURR_SCLK_INDEX); + + for (i = 0; i < sclk_table->count; i++) + size += sprintf(buf + size, "%d: %uMhz %s\n", + i, sclk_table->entries[i].clk / 100, + (i == now) ? "*" : ""); + break; + default: + break; + } + return size; +} + static const struct pp_hwmgr_func cz_hwmgr_funcs = { .backend_init = cz_hwmgr_backend_init, .backend_fini = cz_hwmgr_backend_fini, @@ -1719,6 +1767,9 @@ static const struct pp_hwmgr_func cz_hwmgr_funcs = { .set_cpu_power_state = cz_set_cpu_power_state, .store_cc6_data = cz_store_cc6_data, .get_dal_power_level= cz_get_dal_power_level, + .force_clock_level = cz_force_clock_level, + .print_clock_levels = cz_print_clock_levels, + }; int cz_hwmgr_init(struct pp_hwmgr *hwmgr)