drm/nouveau/pm: extend profile interface for destroy/init/fini

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>

2 files changed, 25 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 009089e093f3..63e77fc282f2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -487,6 +487,9 @@ struct nouveau_pm_tbl_entry {
 
 struct nouveau_pm_profile;
 struct nouveau_pm_profile_func {
+        void (*destroy)(struct nouveau_pm_profile *);
+        void (*init)(struct nouveau_pm_profile *);
+        void (*fini)(struct nouveau_pm_profile *);
         struct nouveau_pm_level *(*select)(struct nouveau_pm_profile *);
 };
 
@@ -556,6 +559,7 @@ struct nouveau_pm_engine {
 
         struct nouveau_pm_profile *profile_ac;
         struct nouveau_pm_profile *profile_dc;
+        struct nouveau_pm_profile *profile;
         struct list_head profiles;
 
         struct nouveau_pm_level boot;
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
index 4fff09e3f592..dcc16927716f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.c
@@ -183,6 +183,12 @@ nouveau_pm_trigger(struct drm_device *dev)
         else
                 profile = pm->profile_dc;
 
+        if (profile != pm->profile) {
+                pm->profile->func->fini(pm->profile);
+                pm->profile = profile;
+                pm->profile->func->init(pm->profile);
+        }
+
         /* select performance level based on profile */
         perflvl = profile->func->select(profile);
 
@@ -251,6 +257,11 @@ nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
         return 0;
 }
 
+static void
+nouveau_pm_static_dummy(struct nouveau_pm_profile *profile)
+{
+}
+
 static struct nouveau_pm_level *
 nouveau_pm_static_select(struct nouveau_pm_profile *profile)
 {
@@ -258,6 +269,9 @@ nouveau_pm_static_select(struct nouveau_pm_profile *profile)
 }
 
 const struct nouveau_pm_profile_func nouveau_pm_static_profile_func = {
+        .destroy = nouveau_pm_static_dummy,
+        .init = nouveau_pm_static_dummy,
+        .fini = nouveau_pm_static_dummy,
         .select = nouveau_pm_static_select,
 };
 
@@ -856,6 +870,7 @@ nouveau_pm_init(struct drm_device *dev)
 
         pm->profile_ac = &pm->boot.profile;
         pm->profile_dc = &pm->boot.profile;
+        pm->profile = &pm->boot.profile;
         pm->cur = &pm->boot;
 
         /* add performance levels from vbios */
@@ -893,6 +908,12 @@ nouveau_pm_fini(struct drm_device *dev)
 {
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+        struct nouveau_pm_profile *profile, *tmp;
+
+        list_for_each_entry_safe(profile, tmp, &pm->profiles, head) {
+                list_del(&profile->head);
+                profile->func->destroy(profile);
+        }
 
         if (pm->cur != &pm->boot)
                 nouveau_pm_perflvl_set(dev, &pm->boot);