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From a037838e547bdba915c705838fed8032d715a5d5 Mon Sep 17 00:00:00 2001
From: Eric Huang <JinHuiEric.Huang@amd.com>
Date: Fri, 22 Jan 2016 12:17:41 -0500
Subject: [PATCH 0244/1110] drm/amd/powerplay: add some hwmgr functions for
sysfs interface on Carrizo
These add the interfaces for manual clock control.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/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 cf01177..1e90cbf 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -1718,6 +1718,54 @@ 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,
@@ -1737,6 +1785,9 @@ 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)
--
2.7.4
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