From: Daniel Vetter <daniel@ffwll.ch>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: maraeo@gmail.com, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 6/8] drm/amd/display: Set DC options from modifiers.
Date: Mon, 10 Aug 2020 15:09:35 +0200 [thread overview]
Message-ID: <20200810130935.GT2352366@phenom.ffwll.local> (raw)
In-Reply-To: <49e200cd-3df6-8a11-34f4-d1342a79f75e@daenzer.net>
On Mon, Aug 10, 2020 at 02:49:00PM +0200, Michel Dänzer wrote:
> On 2020-08-10 2:28 p.m., Daniel Vetter wrote:
> >
> > Ok just learned that amdgpu hat set/get_tiling, so I'm upgrading my idea
> > here to a very strong recommendation, i.e. please do this except if
> > there's and amd ddx which somehow wants to change tiling mode while a fb
> > exists, and expects this to propagate.
> >
> > In i915 we even disallow the set_tiling ioctl with an error if an fb
> > exists, just to make sure userspace behaves. Even if userspace uses
> > set_tiling, this way we can at least enforce the same semantics of "client
> > can't pull compositor over the table with a set_tiling at the wrong time"
> > of modifiers.
>
> FWIW, xf86-video-amdgpu doesn't have any code to set the tiling
> metadata, only Mesa and presumably AMD's Vulkan/OpenGL UMDs do.
Ah right you do everything with glamour, so this should never show up as a
problem.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: Daniel Vetter <daniel@ffwll.ch>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: maraeo@gmail.com, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, Daniel Vetter <daniel@ffwll.ch>,
daniel@fooishbar.org, harry.wentland@amd.com
Subject: Re: [PATCH 6/8] drm/amd/display: Set DC options from modifiers.
Date: Mon, 10 Aug 2020 15:09:35 +0200 [thread overview]
Message-ID: <20200810130935.GT2352366@phenom.ffwll.local> (raw)
In-Reply-To: <49e200cd-3df6-8a11-34f4-d1342a79f75e@daenzer.net>
On Mon, Aug 10, 2020 at 02:49:00PM +0200, Michel Dänzer wrote:
> On 2020-08-10 2:28 p.m., Daniel Vetter wrote:
> >
> > Ok just learned that amdgpu hat set/get_tiling, so I'm upgrading my idea
> > here to a very strong recommendation, i.e. please do this except if
> > there's and amd ddx which somehow wants to change tiling mode while a fb
> > exists, and expects this to propagate.
> >
> > In i915 we even disallow the set_tiling ioctl with an error if an fb
> > exists, just to make sure userspace behaves. Even if userspace uses
> > set_tiling, this way we can at least enforce the same semantics of "client
> > can't pull compositor over the table with a set_tiling at the wrong time"
> > of modifiers.
>
> FWIW, xf86-video-amdgpu doesn't have any code to set the tiling
> metadata, only Mesa and presumably AMD's Vulkan/OpenGL UMDs do.
Ah right you do everything with glamour, so this should never show up as a
problem.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next prev parent reply other threads:[~2020-08-10 13:09 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-04 21:31 [PATCH 0/8] amd/display: Add GFX9+ modifier support Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-04 21:31 ` [PATCH 1/8] drm/amd/display: Do not silently accept DCC for multiplane formats Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-04 21:31 ` [PATCH 2/8] drm/amd: Init modifier field of helper fb Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-04 21:31 ` [PATCH 3/8] drm/amd/display: Honor the offset for plane 0 Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-05 7:21 ` daniel
2020-08-05 7:21 ` daniel
2020-08-04 21:31 ` [PATCH 4/8] drm/fourcc: Add AMD DRM modifiers Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-04 21:31 ` [PATCH 5/8] drm/amd/display: Refactor surface tiling setup Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-04 21:31 ` [PATCH 6/8] drm/amd/display: Set DC options from modifiers Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-05 7:32 ` daniel
2020-08-05 7:32 ` daniel
2020-08-10 12:28 ` Daniel Vetter
2020-08-10 12:28 ` Daniel Vetter
2020-08-10 12:49 ` Michel Dänzer
2020-08-10 12:49 ` Michel Dänzer
2020-08-10 13:09 ` Daniel Vetter [this message]
2020-08-10 13:09 ` Daniel Vetter
2020-08-10 14:13 ` Bas Nieuwenhuizen
2020-08-10 14:13 ` Bas Nieuwenhuizen
2020-08-10 14:20 ` Daniel Vetter
2020-08-10 14:20 ` Daniel Vetter
2020-08-04 21:31 ` [PATCH 7/8] drm/amd/display: Add formats for DCC with 2/3 planes Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-04 21:31 ` [PATCH 8/8] drm/amd/display: Expose modifiers Bas Nieuwenhuizen
2020-08-04 21:31 ` Bas Nieuwenhuizen
2020-08-07 19:42 ` Marek Olšák
2020-08-07 19:42 ` Marek Olšák
2020-09-02 10:31 ` Bas Nieuwenhuizen
2020-09-02 10:31 ` Bas Nieuwenhuizen
2020-09-03 2:42 ` Marek Olšák
2020-09-03 2:42 ` Marek Olšák
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