drm/amd/powerplay: implement power1_cap and power1_cap_max interface for SMU11 (v2)

add get_power_limit and set_power_limit functions
to support hwmon for SMU11.

v2: fix the code style issue.

Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 11 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index d140b3dce676..c3508a7c8bfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1761,7 +1761,10 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
         struct amdgpu_device *adev = dev_get_drvdata(dev);
         uint32_t limit = 0;
 
-        if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
+        if (is_support_sw_smu(adev)) {
+                smu_get_power_limit(&adev->smu, &limit, true);
+                return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
+        } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
                 adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, true);
                 return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
         } else {
@@ -1776,7 +1779,10 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
         struct amdgpu_device *adev = dev_get_drvdata(dev);
         uint32_t limit = 0;
 
-        if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
+        if (is_support_sw_smu(adev)) {
+                smu_get_power_limit(&adev->smu, &limit, false);
+                return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
+        } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
                 adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, false);
                 return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
         } else {
@@ -1799,7 +1805,9 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
                 return err;
 
         value = value / 1000000; /* convert to Watt */
-        if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit) {
+        if (is_support_sw_smu(adev)) {
+                adev->smu.funcs->set_power_limit(&adev->smu, value);
+        } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit) {
                 err = adev->powerplay.pp_funcs->set_power_limit(adev->powerplay.pp_handle, value);
                 if (err)
                         return err;