drm/xe: Fix the runtime_idle call and d3cold.allowed decision.

According to Documentation/power/runtime_pm.txt:

int pm_runtime_put(struct device *dev);
    - decrement the device's usage counter; if the result is 0 then run
      pm_request_idle(dev) and return its result

int pm_runtime_put_autosuspend(struct device *dev);
    - decrement the device's usage counter; if the result is 0 then run
      pm_request_autosuspend(dev) and return its result

We need to ensure that the idle function is called before suspending
so we take the right d3cold.allowed decision and respect the values
set on vram_d3cold_threshold sysfs. So we need pm_runtime_put()
instead of pm_runtime_put_autosuspend().

Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Tested-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c
index 1c62900d29d88ba5a999ba4d18aa97c76fd12326..310e413c91a4394134942b9df55477709af8309e 100644 (file)
--- a/drivers/gpu/drm/xe/xe_pm.c
+++ b/drivers/gpu/drm/xe/xe_pm.c
@@ -133,7 +133,7 @@ static void xe_pm_runtime_init(struct xe_device *xe)
        pm_runtime_set_active(dev);
        pm_runtime_allow(dev);
        pm_runtime_mark_last_busy(dev);
-       pm_runtime_put_autosuspend(dev);
+       pm_runtime_put(dev);
 }
 
 void xe_pm_init(struct xe_device *xe)
@@ -289,7 +289,7 @@ int xe_pm_runtime_get(struct xe_device *xe)
 int xe_pm_runtime_put(struct xe_device *xe)
 {
        pm_runtime_mark_last_busy(xe->drm.dev);
-       return pm_runtime_put_autosuspend(xe->drm.dev);
+       return pm_runtime_put(xe->drm.dev);
 }
 
 int xe_pm_runtime_get_if_active(struct xe_device *xe)