drm/nouveau: create function for "dealing" with gpu lockup

It's mostly a cleanup, but in nv50_fbcon_accel_init gpu lockup
message was printed, but HWACCEL_DISBALED flag was not set.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_fbcon.c

@@ -64,8 +64,7 @@ nouveau_fbcon_sync(struct fb_info *info)
 		return 0;
 
 	if (RING_SPACE(chan, 4)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 		return 0;
 	}
 
@@ -86,8 +85,7 @@ nouveau_fbcon_sync(struct fb_info *info)
 	}
 
 	if (ret) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 		return 0;
 	}
 
@@ -380,3 +378,12 @@ nouveau_fbcon_remove(struct drm_device *dev, struct drm_framebuffer *fb)
 
 	return 0;
 }
+
+void nouveau_fbcon_gpu_lockup(struct fb_info *info)
+{
+	struct nouveau_fbcon_par *par = info->par;
+	struct drm_device *dev = par->dev;
+
+	NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+	info->flags |= FBINFO_HWACCEL_DISABLED;
+}

drivers/gpu/drm/nouveau/nouveau_fbcon.h

@@ -43,5 +43,6 @@ void nouveau_fbcon_zfill(struct drm_device *dev);
 int nv04_fbcon_accel_init(struct fb_info *info);
 int nv50_fbcon_accel_init(struct fb_info *info);
 
+void nouveau_fbcon_gpu_lockup(struct fb_info *info);
 #endif /* __NV50_FBCON_H__ */
 

drivers/gpu/drm/nouveau/nv04_fbcon.c

@@ -39,8 +39,7 @@ nv04_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
 		return;
 
 	if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 4)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 	}
 
 	if (info->flags & FBINFO_HWACCEL_DISABLED) {
@@ -67,8 +66,7 @@ nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 		return;
 
 	if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 7)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 	}
 
 	if (info->flags & FBINFO_HWACCEL_DISABLED) {
@@ -112,8 +110,7 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 	}
 
 	if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 8)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 	}
 
 	if (info->flags & FBINFO_HWACCEL_DISABLED) {
@@ -147,8 +144,7 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 		int iter_len = dsize > 128 ? 128 : dsize;
 
 		if (RING_SPACE(chan, iter_len + 1)) {
-			NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-			info->flags |= FBINFO_HWACCEL_DISABLED;
+			nouveau_fbcon_gpu_lockup(info);
 			cfb_imageblit(info, image);
 			return;
 		}
@@ -246,8 +242,7 @@ nv04_fbcon_accel_init(struct fb_info *info)
 		return ret;
 
 	if (RING_SPACE(chan, 49)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 		return 0;
 	}
 

drivers/gpu/drm/nouveau/nv50_fbcon.c

@@ -16,9 +16,7 @@ nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 
 	if (!(info->flags & FBINFO_HWACCEL_DISABLED) &&
 	     RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 	}
 
 	if (info->flags & FBINFO_HWACCEL_DISABLED) {
@@ -60,9 +58,7 @@ nv50_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
 		return;
 
 	if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 12)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 	}
 
 	if (info->flags & FBINFO_HWACCEL_DISABLED) {
@@ -105,8 +101,7 @@ nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 	}
 
 	if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 11)) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
-		info->flags |= FBINFO_HWACCEL_DISABLED;
+		nouveau_fbcon_gpu_lockup(info);
 	}
 
 	if (info->flags & FBINFO_HWACCEL_DISABLED) {
@@ -139,9 +134,7 @@ nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 		int push = dwords > 2047 ? 2047 : dwords;
 
 		if (RING_SPACE(chan, push + 1)) {
-			NV_ERROR(dev,
-				 "GPU lockup - switching to software fbcon\n");
-			info->flags |= FBINFO_HWACCEL_DISABLED;
+			nouveau_fbcon_gpu_lockup(info);
 			cfb_imageblit(info, image);
 			return;
 		}
@@ -203,7 +196,7 @@ nv50_fbcon_accel_init(struct fb_info *info)
 
 	ret = RING_SPACE(chan, 59);
 	if (ret) {
-		NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+		nouveau_fbcon_gpu_lockup(info);
 		return ret;
 	}