drm/nouveau/pm: embed timings into perflvl structs

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

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -491,8 +491,11 @@ struct nouveau_pm_level {
 	char name[32];
 	int id;
 
-	u32 core;
 	u32 memory;
+	u16 memscript;
+	struct nouveau_pm_memtiming timing;
+
+	u32 core;
 	u32 shader;
 	u32 rop;
 	u32 copy;
@@ -507,9 +510,6 @@ struct nouveau_pm_level {
 	u32 volt_min; /* microvolts */
 	u32 volt_max;
 	u8  fanspeed;
-
-	u16 memscript;
-	struct nouveau_pm_memtiming *timing;
 };
 
 struct nouveau_pm_temp_sensor_constants {
@@ -542,7 +542,6 @@ struct nouveau_pm_engine {
 	struct nouveau_pm_threshold_temp threshold_temp;
 	struct nouveau_pm_fan fan;
 
-	struct nouveau_pm_memtiming boot_timing;
 	struct nouveau_pm_level boot;
 	struct nouveau_pm_level *cur;
 
@@ -914,10 +913,10 @@ extern int  nouveau_mem_init_agp(struct drm_device *);
 extern int  nouveau_mem_reset_agp(struct drm_device *);
 extern void nouveau_mem_close(struct drm_device *);
 extern bool nouveau_mem_flags_valid(struct drm_device *, u32 tile_flags);
+extern int  nouveau_mem_timing_calc(struct drm_device *, u32 freq,
+				    struct nouveau_pm_memtiming *);
 extern void nouveau_mem_timing_read(struct drm_device *,
 				    struct nouveau_pm_memtiming *);
-extern struct nouveau_pm_memtiming *
-nouveau_mem_timing(struct drm_device *, u32 freq);
 extern int nouveau_mem_vbios_type(struct drm_device *);
 extern struct nouveau_tile_reg *nv10_mem_set_tiling(
 	struct drm_device *dev, uint32_t addr, uint32_t size,

drivers/gpu/drm/nouveau/nouveau_mem.c

@@ -812,24 +812,24 @@ nouveau_mem_gddr5_mr(struct drm_device *dev, u32 freq,
 	return 0;
 }
 
-struct nouveau_pm_memtiming *
+int
-nouveau_mem_timing(struct drm_device *dev, u32 freq)
+nouveau_mem_timing_calc(struct drm_device *dev, u32 freq,
+			struct nouveau_pm_memtiming *t)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_memtiming *boot = &pm->boot_timing;
+	struct nouveau_pm_memtiming *boot = &pm->boot.timing;
-	struct nouveau_pm_memtiming *t;
 	struct nouveau_pm_tbl_entry *e;
 	u8 ver, len, *ptr;
 	int ret;
 
 	ptr = nouveau_perf_timing(dev, freq, &ver, &len);
-	if (!ptr || ptr[0] == 0x00)
+	if (!ptr || ptr[0] == 0x00) {
-		return boot;
+		*t = *boot;
+		return 0;
+	}
 	e = (struct nouveau_pm_tbl_entry *)ptr;
 
-	t = kzalloc(sizeof(*t), GFP_KERNEL);
-	if (t) {
 	t->tCWL = boot->tCWL;
 
 	switch (dev_priv->card_type) {
@@ -860,15 +860,11 @@ nouveau_mem_timing(struct drm_device *dev, u32 freq)
 	case NV_MEM_TYPE_DDR3:
 		ret = nouveau_mem_ddr3_mr(dev, freq, e, len, boot, t);
 		break;
+	default:
+		ret = -EINVAL;
 	}
 
-		if (ret) {
+	return ret;
-			kfree(t);
-			t = NULL;
-		}
-	}
-
-	return t;
 }
 
 void

drivers/gpu/drm/nouveau/nouveau_perf.c

@@ -293,7 +293,7 @@ nouveau_perf_init(struct drm_device *dev)
 	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
 	struct nvbios *bios = &dev_priv->vbios;
 	u8 *perf, ver, hdr, cnt, len;
-	int vid, i = -1;
+	int ret, vid, i = -1;
 
 	if (bios->type == NVBIOS_BMP && bios->data[bios->offset + 6] < 0x25) {
 		legacy_perf_init(dev);
@@ -384,7 +384,12 @@ nouveau_perf_init(struct drm_device *dev)
 		}
 
 		/* get the corresponding memory timings */
-		perflvl->timing = nouveau_mem_timing(dev, perflvl->memory);
+		ret = nouveau_mem_timing_calc(dev, perflvl->memory,
+					          &perflvl->timing);
+		if (ret) {
+			NV_DEBUG(dev, "perflvl %d, bad timing: %d\n", i, ret);
+			continue;
+		}
 
 		snprintf(perflvl->name, sizeof(perflvl->name),
 			 "performance_level_%d", i);

drivers/gpu/drm/nouveau/nouveau_pm.c

@@ -245,7 +245,7 @@ nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 static void
 nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
 {
-	char c[16], s[16], v[32], f[16], t[16], m[16];
+	char c[16], s[16], v[32], f[16], m[16];
 
 	c[0] = '\0';
 	if (perflvl->core)
@@ -273,11 +273,7 @@ nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
 	if (perflvl->fanspeed)
 		snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
 
-	t[0] = '\0';
+	snprintf(ptr, len, "%s%s%s%s%s\n", c, s, m,  v, f);
-	if (perflvl->timing)
-		snprintf(t, sizeof(t), " timing %d", perflvl->timing->id);
-
-	snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f);
 }
 
 static ssize_t