1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 37b1deacb5b1..6f1dfac17507 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -33,6 +33,13 @@
 #include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
+
+#if defined(CONFIG_VGA_SWITCHEROO)
+bool radeon_is_px(void);
+#else
+static inline bool radeon_is_px(void) { return false; }
+#endif
+
 /**
  * radeon_driver_unload_kms - Main unload function for KMS.
  *
@@ -130,7 +137,8 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
                                 "Error during ACPI methods call\n");
         }
 
-        if (radeon_runtime_pm != 0) {
+        if ((radeon_runtime_pm == 1) ||
+            ((radeon_runtime_pm == -1) && radeon_is_px())) {
                 pm_runtime_use_autosuspend(dev->dev);
                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
                 pm_runtime_set_active(dev->dev);
@@ -567,6 +575,10 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
                 if (r)
                         return r;
 
+                r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
+                if (r)
+                        return r;
+
                 /* map the ib pool buffer read only into
                  * virtual address space */
                 bo_va = radeon_vm_bo_add(rdev, &fpriv->vm,