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-rw-r--r--drivers/gpu/drm/i915/intel_fbdev.c62
1 files changed, 46 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 895fcb4fbd94..fdb6dc92a7ab 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -57,18 +57,14 @@ static struct fb_ops intelfb_ops = {
.fb_debug_leave = drm_fb_helper_debug_leave,
};
-static int intelfb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
+static int intelfb_alloc(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev =
container_of(helper, struct intel_fbdev, helper);
struct drm_device *dev = helper->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct fb_info *info;
- struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd = {};
struct drm_i915_gem_object *obj;
- struct device *device = &dev->pdev->dev;
int size, ret;
/* we don't do packed 24bpp */
@@ -94,8 +90,6 @@ static int intelfb_create(struct drm_fb_helper *helper,
goto out;
}
- mutex_lock(&dev->struct_mutex);
-
/* Flush everything out, we'll be doing GTT only from now on */
ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
if (ret) {
@@ -103,7 +97,49 @@ static int intelfb_create(struct drm_fb_helper *helper,
goto out_unref;
}
- info = framebuffer_alloc(0, device);
+ ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
+ if (ret)
+ goto out_unpin;
+
+ return 0;
+
+out_unpin:
+ i915_gem_object_unpin(obj);
+out_unref:
+ drm_gem_object_unreference(&obj->base);
+out:
+ return ret;
+}
+
+static int intelfb_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct intel_fbdev *ifbdev =
+ container_of(helper, struct intel_fbdev, helper);
+ struct intel_framebuffer *intel_fb = &ifbdev->ifb;
+ struct drm_device *dev = helper->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct fb_info *info;
+ struct drm_framebuffer *fb;
+ struct drm_i915_gem_object *obj;
+ int size, ret;
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (!intel_fb->obj) {
+ DRM_ERROR("no BIOS fb, allocating a new one\n");
+ ret = intelfb_alloc(helper, sizes);
+ if (ret)
+ goto out_unlock;
+ } else {
+ sizes->fb_width = intel_fb->base.width;
+ sizes->fb_height = intel_fb->base.height;
+ }
+
+ obj = intel_fb->obj;
+ size = obj->base.size;
+
+ info = framebuffer_alloc(0, &dev->pdev->dev);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
@@ -111,10 +147,6 @@ static int intelfb_create(struct drm_fb_helper *helper,
info->par = helper;
- ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
- if (ret)
- goto out_unpin;
-
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
@@ -170,17 +202,15 @@ static int intelfb_create(struct drm_fb_helper *helper,
fb->width, fb->height,
i915_gem_obj_ggtt_offset(obj), obj);
-
mutex_unlock(&dev->struct_mutex);
vga_switcheroo_client_fb_set(dev->pdev, info);
return 0;
out_unpin:
i915_gem_object_unpin(obj);
-out_unref:
drm_gem_object_unreference(&obj->base);
+out_unlock:
mutex_unlock(&dev->struct_mutex);
-out:
return ret;
}