drm/amdgpu/powerplay: implement thermal control for tonga.

BugLink: http://bugs.launchpad.net/bugs/1546572

Implement thermal and fan control for tonga.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 1e4854e9)
Signed-off-by: Alberto Milone <alberto.milone@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

drivers/gpu/drm/amd/powerplay/hwmgr/Makefile

@@ -6,7 +6,7 @@ HARDWARE_MGR = hwmgr.o processpptables.o functiontables.o \
 	       hardwaremanager.o pp_acpi.o cz_hwmgr.o \
                cz_clockpowergating.o \
 	       tonga_processpptables.o ppatomctrl.o \
-               tonga_hwmgr.o 	pppcielanes.o \
+               tonga_hwmgr.o pppcielanes.o  tonga_thermal.o\
                fiji_powertune.o fiji_hwmgr.o tonga_clockpowergating.o
 
 AMD_PP_HWMGR = $(addprefix $(AMD_PP_PATH)/hwmgr/,$(HARDWARE_MGR))

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c

@@ -40,6 +40,7 @@
 #include "smumgr.h"
 #include "tonga_smumgr.h"
 #include "tonga_clockpowergating.h"
+#include "tonga_thermal.h"
 
 #include "smu/smu_7_1_2_d.h"
 #include "smu/smu_7_1_2_sh_mask.h"
@@ -50,6 +51,9 @@
 #include "bif/bif_5_0_d.h"
 #include "bif/bif_5_0_sh_mask.h"
 
+#include "cgs_linux.h"
+#include "eventmgr.h"
+
 #define MC_CG_ARB_FREQ_F0           0x0a
 #define MC_CG_ARB_FREQ_F1           0x0b
 #define MC_CG_ARB_FREQ_F2           0x0c
@@ -5721,6 +5725,22 @@ static int tonga_set_power_state_tasks(struct pp_hwmgr *hwmgr, const void *input
 	return result;
 }
 
+/**
+*  Set maximum target operating fan output PWM
+*
+* @param    pHwMgr:  the address of the powerplay hardware manager.
+* @param    usMaxFanPwm:  max operating fan PWM in percents
+* @return   The response that came from the SMC.
+*/
+static int tonga_set_max_fan_pwm_output(struct pp_hwmgr *hwmgr, uint16_t us_max_fan_pwm)
+{
+	hwmgr->thermal_controller.advanceFanControlParameters.usMaxFanPWM = us_max_fan_pwm;
+
+	if (phm_is_hw_access_blocked(hwmgr))
+		return 0;
+
+    return (0 == smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, PPSMC_MSG_SetFanPwmMax, us_max_fan_pwm) ? 0 : -EINVAL);
+}
 
 int tonga_notify_smc_display_config_after_ps_adjustment(struct pp_hwmgr *hwmgr)
 {
@@ -5799,6 +5819,122 @@ int tonga_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
+/**
+*  Set maximum target operating fan output RPM
+*
+* @param    pHwMgr:  the address of the powerplay hardware manager.
+* @param    usMaxFanRpm:  max operating fan RPM value.
+* @return   The response that came from the SMC.
+*/
+static int tonga_set_max_fan_rpm_output(struct pp_hwmgr *hwmgr, uint16_t us_max_fan_pwm)
+{
+	hwmgr->thermal_controller.advanceFanControlParameters.usMaxFanRPM = us_max_fan_pwm;
+
+	if (phm_is_hw_access_blocked(hwmgr))
+		return 0;
+
+	return (0 == smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, PPSMC_MSG_SetFanRpmMax, us_max_fan_pwm) ? 0 : -EINVAL);
+}
+
+uint32_t tonga_get_xclk(struct pp_hwmgr *hwmgr)
+{
+	uint32_t reference_clock;
+	uint32_t tc;
+	uint32_t divide;
+
+	ATOM_FIRMWARE_INFO *fw_info;
+	uint16_t size;
+	uint8_t frev, crev;
+	int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
+
+	tc = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_CLKPIN_CNTL_2, MUX_TCLK_TO_XCLK);
+
+	if (tc)
+		return TCLK;
+
+	fw_info = (ATOM_FIRMWARE_INFO *)cgs_atom_get_data_table(hwmgr->device, index,
+						  &size, &frev, &crev);
+
+	if (!fw_info)
+		return 0;
+
+	reference_clock = le16_to_cpu(fw_info->usMinPixelClockPLL_Output);
+
+	divide = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_CLKPIN_CNTL, XTALIN_DIVIDE);
+
+	if (0 != divide)
+		return reference_clock / 4;
+
+	return reference_clock;
+}
+
+int tonga_dpm_set_interrupt_state(void *private_data,
+					 unsigned src_id, unsigned type,
+					 int enabled)
+{
+	uint32_t cg_thermal_int;
+	struct pp_hwmgr *hwmgr = ((struct pp_eventmgr *)private_data)->hwmgr;
+
+	if (hwmgr == NULL)
+		return -EINVAL;
+
+	switch (type) {
+	case AMD_THERMAL_IRQ_LOW_TO_HIGH:
+		if (enabled) {
+			cg_thermal_int = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT);
+			cg_thermal_int |= CG_THERMAL_INT_CTRL__THERM_INTH_MASK_MASK;
+			cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT, cg_thermal_int);
+		} else {
+			cg_thermal_int = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT);
+			cg_thermal_int &= ~CG_THERMAL_INT_CTRL__THERM_INTH_MASK_MASK;
+			cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT, cg_thermal_int);
+		}
+		break;
+
+	case AMD_THERMAL_IRQ_HIGH_TO_LOW:
+		if (enabled) {
+			cg_thermal_int = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT);
+			cg_thermal_int |= CG_THERMAL_INT_CTRL__THERM_INTL_MASK_MASK;
+			cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT, cg_thermal_int);
+		} else {
+			cg_thermal_int = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT);
+			cg_thermal_int &= ~CG_THERMAL_INT_CTRL__THERM_INTL_MASK_MASK;
+			cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_THERMAL_INT, cg_thermal_int);
+		}
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+int tonga_register_internal_thermal_interrupt(struct pp_hwmgr *hwmgr,
+					const void *thermal_interrupt_info)
+{
+	int result;
+	const struct pp_interrupt_registration_info *info =
+			(const struct pp_interrupt_registration_info *)thermal_interrupt_info;
+
+	if (info == NULL)
+		return -EINVAL;
+
+	result = cgs_add_irq_source(hwmgr->device, 230, AMD_THERMAL_IRQ_LAST,
+				tonga_dpm_set_interrupt_state,
+				info->call_back, info->context);
+
+	if (result)
+		return -EINVAL;
+
+	result = cgs_add_irq_source(hwmgr->device, 231, AMD_THERMAL_IRQ_LAST,
+				tonga_dpm_set_interrupt_state,
+				info->call_back, info->context);
+
+	if (result)
+		return -EINVAL;
+
+	return 0;
+}
+
 static const struct pp_hwmgr_func tonga_hwmgr_funcs = {
 	.backend_init = &tonga_hwmgr_backend_init,
 	.backend_fini = &tonga_hwmgr_backend_fini,
@@ -5820,6 +5956,18 @@ static const struct pp_hwmgr_func tonga_hwmgr_funcs = {
 	.disable_clock_power_gating = tonga_phm_disable_clock_power_gating,
 	.notify_smc_display_config_after_ps_adjustment = tonga_notify_smc_display_config_after_ps_adjustment,
 	.display_config_changed = tonga_display_configuration_changed_task,
+	.set_max_fan_pwm_output = tonga_set_max_fan_pwm_output,
+	.set_max_fan_rpm_output = tonga_set_max_fan_rpm_output,
+	.get_temperature = tonga_thermal_get_temperature,
+	.stop_thermal_controller = tonga_thermal_stop_thermal_controller,
+	.get_fan_speed_info = tonga_fan_ctrl_get_fan_speed_info,
+	.get_fan_speed_percent = tonga_fan_ctrl_get_fan_speed_percent,
+	.set_fan_speed_percent = tonga_fan_ctrl_set_fan_speed_percent,
+	.reset_fan_speed_to_default = tonga_fan_ctrl_reset_fan_speed_to_default,
+	.get_fan_speed_rpm = tonga_fan_ctrl_get_fan_speed_rpm,
+	.set_fan_speed_rpm = tonga_fan_ctrl_set_fan_speed_rpm,
+	.uninitialize_thermal_controller = tonga_thermal_ctrl_uninitialize_thermal_controller,
+	.register_internal_thermal_interrupt = tonga_register_internal_thermal_interrupt,
 };
 
 int tonga_hwmgr_init(struct pp_hwmgr *hwmgr)
@@ -5834,7 +5982,7 @@ int tonga_hwmgr_init(struct pp_hwmgr *hwmgr)
 	hwmgr->backend = data;
 	hwmgr->hwmgr_func = &tonga_hwmgr_funcs;
 	hwmgr->pptable_func = &tonga_pptable_funcs;
-
+	pp_tonga_thermal_initialize(hwmgr);
 	return 0;
 }
 

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.h

@@ -426,6 +426,7 @@ int tonga_update_vce_dpm(struct pp_hwmgr *hwmgr, const void *input);
 int tonga_update_uvd_dpm(struct pp_hwmgr *hwmgr, bool bgate);
 int tonga_enable_disable_uvd_dpm(struct pp_hwmgr *hwmgr, bool enable);
 int tonga_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable);
+uint32_t tonga_get_xclk(struct pp_hwmgr *hwmgr);
 
 #endif
 

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.h

+/*
+ * Copyright 2015 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.
+ *
+ */
+
+#ifndef TONGA_THERMAL_H
+#define TONGA_THERMAL_H
+
+#include "hwmgr.h"
+
+#define TONGA_THERMAL_HIGH_ALERT_MASK         0x1
+#define TONGA_THERMAL_LOW_ALERT_MASK          0x2
+
+#define TONGA_THERMAL_MINIMUM_TEMP_READING    -256
+#define TONGA_THERMAL_MAXIMUM_TEMP_READING    255
+
+#define TONGA_THERMAL_MINIMUM_ALERT_TEMP      0
+#define TONGA_THERMAL_MAXIMUM_ALERT_TEMP      255
+
+#define FDO_PWM_MODE_STATIC  1
+#define FDO_PWM_MODE_STATIC_RPM 5
+
+
+extern int tf_tonga_thermal_initialize(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result);
+extern int tf_tonga_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result);
+extern int tf_tonga_thermal_enable_alert(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result);
+
+extern int tonga_thermal_get_temperature(struct pp_hwmgr *hwmgr);
+extern int tonga_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr);
+extern int tonga_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, struct phm_fan_speed_info *fan_speed_info);
+extern int tonga_fan_ctrl_get_fan_speed_percent(struct pp_hwmgr *hwmgr, uint32_t *speed);
+extern int tonga_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr);
+extern int tonga_fan_ctrl_set_static_mode(struct pp_hwmgr *hwmgr, uint32_t mode);
+extern int tonga_fan_ctrl_set_fan_speed_percent(struct pp_hwmgr *hwmgr, uint32_t speed);
+extern int tonga_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr);
+extern int pp_tonga_thermal_initialize(struct pp_hwmgr *hwmgr);
+extern int tonga_thermal_ctrl_uninitialize_thermal_controller(struct pp_hwmgr *hwmgr);
+extern int tonga_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed);
+extern int tonga_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed);
+
+#endif
+