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From 87e58c3fe984cba183605c37915ab70337c9dc37 Mon Sep 17 00:00:00 2001
From: Likun Gao <Likun.Gao@amd.com>
Date: Fri, 25 Jan 2019 17:45:24 +0800
Subject: [PATCH 1477/2940] drm/amd/powerplay: add fan input interface for
hwmon
Add fan1_input and fan1_target interface to get fan speed info for hwmon.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 12 ++++++++++--
.../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 3 +++
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 19 ++++++++++++++++++-
3 files changed, 31 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index ccdb0f6f1ff9..d140b3dce676 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1503,7 +1503,11 @@ static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
(adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON))
return -EINVAL;
- if (adev->powerplay.pp_funcs->get_fan_speed_rpm) {
+ if (is_support_sw_smu(adev)) {
+ err = smu_get_current_rpm(&adev->smu, &speed);
+ if (err)
+ return err;
+ } else if (adev->powerplay.pp_funcs->get_fan_speed_rpm) {
err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed);
if (err)
return err;
@@ -1559,7 +1563,11 @@ static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
(adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON))
return -EINVAL;
- if (adev->powerplay.pp_funcs->get_fan_speed_rpm) {
+ if (is_support_sw_smu(adev)) {
+ err = smu_get_current_rpm(&adev->smu, &rpm);
+ if (err)
+ return err;
+ } else if (adev->powerplay.pp_funcs->get_fan_speed_rpm) {
err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm);
if (err)
return err;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index d7f26e178839..2cc7129b53aa 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -530,6 +530,7 @@ struct smu_funcs
int (*dpm_set_vce_enable)(struct smu_context *smu, bool enable);
uint32_t (*get_sclk)(struct smu_context *smu, bool low);
uint32_t (*get_mclk)(struct smu_context *smu, bool low);
+ int (*get_current_rpm)(struct smu_context *smu, uint32_t *speed);
};
#define smu_init_microcode(smu) \
@@ -580,6 +581,8 @@ struct smu_funcs
((smu)->funcs->set_od8_default_settings ? (smu)->funcs->set_od8_default_settings((smu)) : 0)
#define smu_update_od8_settings(smu, index, value) \
((smu)->funcs->update_od8_settings ? (smu)->funcs->update_od8_settings((smu), (index), (value)) : 0)
+#define smu_get_current_rpm(smu, speed) \
+ ((smu)->funcs->get_current_rpm ? (smu)->funcs->get_current_rpm((smu), (speed)) : 0)
#define smu_send_smc_msg(smu, msg) \
((smu)->funcs->send_smc_msg? (smu)->funcs->send_smc_msg((smu), (msg)) : 0)
#define smu_send_smc_msg_with_param(smu, msg, param) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 8d2531845fd8..6333c185385c 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1712,6 +1712,23 @@ static int smu_v11_0_dpm_set_vce_enable(struct smu_context *smu, bool enable)
return smu_feature_set_enabled(smu, FEATURE_DPM_UVD_BIT, enable);
}
+static int smu_v11_0_get_current_rpm(struct smu_context *smu,
+ uint32_t *current_rpm)
+{
+ int ret;
+
+ ret = smu_send_smc_msg(smu, SMU_MSG_GetCurrentRpm);
+
+ if (ret) {
+ pr_err("Attempt to get current RPM from SMC Failed!\n");
+ return ret;
+ }
+
+ smu_read_smc_arg(smu, current_rpm);
+
+ return 0;
+}
+
static const struct smu_funcs smu_v11_0_funcs = {
.init_microcode = smu_v11_0_init_microcode,
.load_microcode = smu_v11_0_load_microcode,
@@ -1761,7 +1778,7 @@ static const struct smu_funcs smu_v11_0_funcs = {
.update_od8_settings = smu_v11_0_update_od8_settings,
.dpm_set_uvd_enable = smu_v11_0_dpm_set_uvd_enable,
.dpm_set_vce_enable = smu_v11_0_dpm_set_vce_enable,
-
+ .get_current_rpm = smu_v11_0_get_current_rpm,
};
void smu_v11_0_set_smu_funcs(struct smu_context *smu)
--
2.17.1
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