1 files changed, 59 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index bf5721856f3c..e5449c41cfa1 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -205,6 +205,62 @@ static const struct drm_fb_helper_funcs intel_fb_helper_funcs = {
 	.fb_set_suspend = intelfb_set_suspend,
 };
 
+static void intel_fbdev_fill_mode_cmd(struct drm_fb_helper_surface_size *sizes,
+				      struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	/* we don't do packed 24bpp */
+	if (sizes->surface_bpp == 24)
+		sizes->surface_bpp = 32;
+
+	mode_cmd->flags = DRM_MODE_FB_MODIFIERS;
+	mode_cmd->width = sizes->surface_width;
+	mode_cmd->height = sizes->surface_height;
+
+	mode_cmd->pitches[0] = intel_fbdev_fb_pitch_align(mode_cmd->width * DIV_ROUND_UP(sizes->surface_bpp, 8));
+	mode_cmd->pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							   sizes->surface_depth);
+	mode_cmd->modifier[0] = DRM_FORMAT_MOD_LINEAR;
+}
+
+static struct intel_framebuffer *
+__intel_fbdev_fb_alloc(struct intel_display *display,
+		       struct drm_fb_helper_surface_size *sizes)
+{
+	struct drm_mode_fb_cmd2 mode_cmd = {};
+	struct drm_framebuffer *fb;
+	struct drm_gem_object *obj;
+	int size;
+
+	intel_fbdev_fill_mode_cmd(sizes, &mode_cmd);
+
+	size = mode_cmd.pitches[0] * mode_cmd.height;
+	size = PAGE_ALIGN(size);
+
+	obj = intel_fbdev_fb_bo_create(display->drm, size);
+	if (IS_ERR(obj)) {
+		fb = ERR_CAST(obj);
+		goto err;
+	}
+
+	fb = intel_framebuffer_create(obj,
+				      drm_get_format_info(display->drm,
+							  mode_cmd.pixel_format,
+							  mode_cmd.modifier[0]),
+				      &mode_cmd);
+	if (IS_ERR(fb)) {
+		intel_fbdev_fb_bo_destroy(obj);
+		goto err;
+	}
+
+	drm_gem_object_put(obj);
+
+	return to_intel_framebuffer(fb);
+
+err:
+	return ERR_CAST(fb);
+
+}
+
 int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 				   struct drm_fb_helper_surface_size *sizes)
 {
@@ -235,7 +291,8 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 	if (!fb || drm_WARN_ON(display->drm, !intel_fb_bo(&fb->base))) {
 		drm_dbg_kms(display->drm,
 			    "no BIOS fb, allocating a new one\n");
-		fb = intel_fbdev_fb_alloc(helper, sizes);
+
+		fb = __intel_fbdev_fb_alloc(display, sizes);
 		if (IS_ERR(fb))
 			return PTR_ERR(fb);
 	} else {
@@ -275,7 +332,7 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 
 	obj = intel_fb_bo(&fb->base);
 
-	ret = intel_fbdev_fb_fill_info(display, info, obj, vma);
+	ret = intel_fbdev_fb_fill_info(display->drm, info, obj, vma);
 	if (ret)
 		goto out_unpin;