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From: Daniel Vetter <daniel@ffwll.ch>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Sebastian Reichel <sebastian.reichel@collabora.co.uk>,
	dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 11/13] drm/omapdrm: Nuke omap_framebuffer_get_next_connector()
Date: Mon, 9 Apr 2018 10:41:15 +0200	[thread overview]
Message-ID: <20180409084115.GP31310@phenom.ffwll.local> (raw)
In-Reply-To: <08573017-0b7f-38e7-b08b-82de353c3204@ti.com>

On Fri, Apr 06, 2018 at 09:10:43AM +0300, Tomi Valkeinen wrote:
> On 05/04/18 19:50, Daniel Vetter wrote:
> > On Thu, Apr 05, 2018 at 06:13:58PM +0300, Ville Syrjala wrote:
> >> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >>
> >> omap_framebuffer_get_next_connector() uses plane->fb which we want to
> >> deprecate for atomic drivers. As omap_framebuffer_get_next_connector()
> >> is unused just nuke the entire function.
> >>
> >> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> >> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > 
> > Yeah was slightly worried how to fix up this one, but we're lucky!
> > 
> > Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> 
> I tried to remove it just a week ago, but Sebastian said that it's used
> by a unmerged series about DSI command mode displays, so I dropped the
> patch.
> 
> In the unmerged series, it's used by omap_framebuffer_dirty() ([PATCHv3
> 3/8] drm/omap: add support for manually updated displays). So we have a
> framebuffer, and we want to know which crtcs need to be flushed.

You can't do that in atomic drivers.

You need to take appropriate locks and do the full ->state->fb deref.
Also, there's a gazillion of copies for generic framebuffer_dirty
implementations floating around, pleas try to coordinate with those.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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  reply	other threads:[~2018-04-09  8:41 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-05 15:13 [PATCH 01/13] drm/msm: Stop consulting plane->fb/crtc Ville Syrjala
2018-04-05 15:13 ` [PATCH 02/13] drm/sti: Stop consulting plane->crtc Ville Syrjala
2018-04-05 16:34   ` Daniel Vetter
2018-04-05 15:13 ` [PATCH 03/13] drm/atmel-hlcdc: " Ville Syrjala
2018-04-05 16:35   ` Daniel Vetter
2018-04-05 15:13 ` [PATCH 04/13] drm/amdgpu/dc: Stop updating plane->fb Ville Syrjala
2018-04-05 16:41   ` Daniel Vetter
2018-04-05 18:25     ` Harry Wentland
2018-04-05 15:13 ` [PATCH 05/13] drm/i915: Stop updating plane->fb/crtc Ville Syrjala
2018-04-05 16:44   ` Daniel Vetter
2018-04-05 17:02   ` [PATCH v2 " Ville Syrjala
2018-04-05 20:00     ` Daniel Vetter
2018-04-05 15:13 ` [PATCH 06/13] drm/exynos: Stop updating plane->crtc Ville Syrjala
2018-04-05 16:45   ` Daniel Vetter
2018-04-06  2:03     ` Inki Dae
     [not found] ` <20180405151400.11326-1-ville.syrjala-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2018-04-05 15:13   ` [PATCH 07/13] drm/msm: Stop updating plane->fb/crtc Ville Syrjala
2018-04-05 16:32     ` Daniel Vetter
2018-04-05 15:13 ` [PATCH 08/13] drm/virtio: Stop updating plane->crtc Ville Syrjala
2018-04-05 16:46   ` [Intel-gfx] " Daniel Vetter
2018-04-05 15:13 ` [PATCH 09/13] drm/vc4: Stop updating plane->fb/crtc Ville Syrjala
2018-04-05 16:46   ` Daniel Vetter
2018-04-05 15:13 ` [PATCH 10/13] drm/atmel-hlcdc: Stop using plane->fb Ville Syrjala
2018-04-05 16:38   ` Daniel Vetter
2018-04-05 15:13 ` [PATCH 11/13] drm/omapdrm: Nuke omap_framebuffer_get_next_connector() Ville Syrjala
2018-04-05 16:50   ` Daniel Vetter
2018-04-06  6:10     ` [Intel-gfx] " Tomi Valkeinen
2018-04-09  8:41       ` Daniel Vetter [this message]
2018-04-16 13:29         ` Tomi Valkeinen
2018-04-05 15:13 ` [PATCH 12/13] drm: Stop updating plane->crtc/fb/old_fb on atomic drivers Ville Syrjala
2018-04-05 16:58   ` Daniel Vetter
2018-04-05 15:14 ` [PATCH 13/13] drm: Add local 'plane' variable for tmp->primary Ville Syrjala
2018-04-05 16:59   ` Daniel Vetter
2018-04-05 16:33 ` [PATCH 01/13] drm/msm: Stop consulting plane->fb/crtc Daniel Vetter

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