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Commit 8bcd4553 authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter
Browse files

drm/i915: alloc intel_fb in the intel_fbdev struct 



Allocate this struct instead, so we can re-use another allocated
elsewhere if needed.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
[danvet: WARN_ON if there's no backing storage attached to an fb,
that's a bug.]
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent bd9b6a4e

drivers/gpu/drm/i915/intel_display.c

+2 −2
Original line number Diff line number Diff line
@@ -7769,11 +7769,11 @@ mode_fits_in_fbdev(struct drm_device *dev, 
	if (dev_priv->fbdev == NULL)

		return NULL;



	obj = dev_priv->fbdev->ifb.obj;

	obj = dev_priv->fbdev->fb->obj;

	if (obj == NULL)

		return NULL;



	fb = &dev_priv->fbdev->ifb.base;

	fb = &dev_priv->fbdev->fb->base;

	if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,

							       fb->bits_per_pixel))

		return NULL;

drivers/gpu/drm/i915/intel_drv.h

+1 −1
Original line number Diff line number Diff line
@@ -110,7 +110,7 @@ struct intel_framebuffer { 


struct intel_fbdev {

	struct drm_fb_helper helper;

	struct intel_framebuffer ifb;

	struct intel_framebuffer *fb;

	struct list_head fbdev_list;

	struct drm_display_mode *our_mode;

};

drivers/gpu/drm/i915/intel_fbdev.c

+19 −8
Original line number Diff line number Diff line
@@ -62,11 +62,20 @@ static int intelfb_alloc(struct drm_fb_helper *helper, 
{

	struct intel_fbdev *ifbdev =

		container_of(helper, struct intel_fbdev, helper);

	struct intel_framebuffer *fb;

	struct drm_device *dev = helper->dev;

	struct drm_mode_fb_cmd2 mode_cmd = {};

	struct drm_i915_gem_object *obj;

	int size, ret;



	fb = kzalloc(sizeof(*fb), GFP_KERNEL);

	if (!fb) {

		ret = -ENOMEM;

		goto out;

	}



	ifbdev->fb = fb;



	/* we don't do packed 24bpp */

	if (sizes->surface_bpp == 24)

		sizes->surface_bpp = 32;
@@ -97,7 +106,7 @@ static int intelfb_alloc(struct drm_fb_helper *helper, 
		goto out_unref;

	}



	ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);

	ret = intel_framebuffer_init(dev, ifbdev->fb, &mode_cmd, obj);

	if (ret)

		goto out_unpin;
@@ -116,7 +125,7 @@ static int intelfb_create(struct drm_fb_helper *helper, 
{

	struct intel_fbdev *ifbdev =

		container_of(helper, struct intel_fbdev, helper);

	struct intel_framebuffer *intel_fb = &ifbdev->ifb;

	struct intel_framebuffer *intel_fb = ifbdev->fb;

	struct drm_device *dev = helper->dev;

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct fb_info *info;
@@ -126,11 +135,12 @@ static int intelfb_create(struct drm_fb_helper *helper, 


	mutex_lock(&dev->struct_mutex);



	if (!intel_fb->obj) {

	if (!intel_fb || WARN_ON(!intel_fb->obj)) {

		DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n");

		ret = intelfb_alloc(helper, sizes);

		if (ret)

			goto out_unlock;

		intel_fb = ifbdev->fb;

	} else {

		DRM_DEBUG_KMS("re-using BIOS fb\n");

		sizes->fb_width = intel_fb->base.width;
@@ -148,7 +158,7 @@ static int intelfb_create(struct drm_fb_helper *helper, 


	info->par = helper;



	fb = &ifbdev->ifb.base;

	fb = &ifbdev->fb->base;



	ifbdev->helper.fb = fb;

	ifbdev->helper.fbdev = info;
@@ -194,7 +204,7 @@ static int intelfb_create(struct drm_fb_helper *helper, 
	 * If the object is stolen however, it will be full of whatever

	 * garbage was left in there.

	 */

	if (ifbdev->ifb.obj->stolen)

	if (ifbdev->fb->obj->stolen)

		memset_io(info->screen_base, 0, info->screen_size);



	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
@@ -258,8 +268,9 @@ static void intel_fbdev_destroy(struct drm_device *dev, 


	drm_fb_helper_fini(&ifbdev->helper);



	drm_framebuffer_unregister_private(&ifbdev->ifb.base);

	intel_framebuffer_fini(&ifbdev->ifb);

	drm_framebuffer_unregister_private(&ifbdev->fb->base);

	intel_framebuffer_fini(ifbdev->fb);

	kfree(ifbdev->fb);

}



int intel_fbdev_init(struct drm_device *dev)
@@ -322,7 +333,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state) 
	 * been restored from swap. If the object is stolen however, it will be

	 * full of whatever garbage was left in there.

	 */

	if (state == FBINFO_STATE_RUNNING && ifbdev->ifb.obj->stolen)

	if (state == FBINFO_STATE_RUNNING && ifbdev->fb->obj->stolen)

		memset_io(info->screen_base, 0, info->screen_size);



	fb_set_suspend(info, state);