drm/nouveau: pass perflvl struct to clock_pre()

On certain boards, there's BIOS scripts and memory timings that need to
be modified with the memclk.  Just pass in the entire perflvl struct and
let the chipset-specific code decide what to do.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -432,7 +432,8 @@ struct nouveau_pm_engine {
 	struct device *hwmon;
 
 	int (*clock_get)(struct drm_device *, u32 id);
-	void *(*clock_pre)(struct drm_device *, u32 id, int khz);
+	void *(*clock_pre)(struct drm_device *, struct nouveau_pm_level *,
+			   u32 id, int khz);
 	void (*clock_set)(struct drm_device *, void *);
 	int (*voltage_get)(struct drm_device *);
 	int (*voltage_set)(struct drm_device *, int voltage);

drivers/gpu/drm/nouveau/nouveau_pm.c

@@ -31,7 +31,8 @@
 #include <linux/hwmon-sysfs.h>
 
 static int
-nouveau_pm_clock_set(struct drm_device *dev, u8 id, u32 khz)
+nouveau_pm_clock_set(struct drm_device *dev, struct nouveau_pm_level *perflvl,
+		     u8 id, u32 khz)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
@@ -40,7 +41,7 @@ nouveau_pm_clock_set(struct drm_device *dev, u8 id, u32 khz)
 	if (khz == 0)
 		return 0;
 
-	pre_state = pm->clock_pre(dev, id, khz);
+	pre_state = pm->clock_pre(dev, perflvl, id, khz);
 	if (IS_ERR(pre_state))
 		return PTR_ERR(pre_state);
 
@@ -67,10 +68,10 @@ nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 		}
 	}
 
-	nouveau_pm_clock_set(dev, PLL_CORE, perflvl->core);
-	nouveau_pm_clock_set(dev, PLL_SHADER, perflvl->shader);
-	nouveau_pm_clock_set(dev, PLL_MEMORY, perflvl->memory);
-	nouveau_pm_clock_set(dev, PLL_UNK05, perflvl->unk05);
+	nouveau_pm_clock_set(dev, perflvl, PLL_CORE, perflvl->core);
+	nouveau_pm_clock_set(dev, perflvl, PLL_SHADER, perflvl->shader);
+	nouveau_pm_clock_set(dev, perflvl, PLL_MEMORY, perflvl->memory);
+	nouveau_pm_clock_set(dev, perflvl, PLL_UNK05, perflvl->unk05);
 
 	pm->cur = perflvl;
 	return 0;

drivers/gpu/drm/nouveau/nouveau_pm.h

@@ -48,12 +48,14 @@ void nouveau_mem_timing_fini(struct drm_device *);
 
 /* nv04_pm.c */
 int nv04_pm_clock_get(struct drm_device *, u32 id);
-void *nv04_pm_clock_pre(struct drm_device *, u32 id, int khz);
+void *nv04_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *,
+			u32 id, int khz);
 void nv04_pm_clock_set(struct drm_device *, void *);
 
 /* nv50_pm.c */
 int nv50_pm_clock_get(struct drm_device *, u32 id);
-void *nv50_pm_clock_pre(struct drm_device *, u32 id, int khz);
+void *nv50_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *,
+			u32 id, int khz);
 void nv50_pm_clock_set(struct drm_device *, void *);
 
 /* nouveau_temp.c */

drivers/gpu/drm/nouveau/nv04_pm.c

@@ -39,7 +39,8 @@ nv04_pm_clock_get(struct drm_device *dev, u32 id)
 }
 
 void *
-nv04_pm_clock_pre(struct drm_device *dev, u32 id, int khz)
+nv04_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl,
+		  u32 id, int khz)
 {
 	struct nv04_pm_state *state;
 	int ret;

drivers/gpu/drm/nouveau/nv50_pm.c

@@ -67,7 +67,8 @@ nv50_pm_clock_get(struct drm_device *dev, u32 id)
 }
 
 void *
-nv50_pm_clock_pre(struct drm_device *dev, u32 id, int khz)
+nv50_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl,
+		  u32 id, int khz)
 {
 	struct nv50_pm_state *state;
 	int dummy, ret;