From: Daniel Vetter <daniel@ffwll.ch>
To: Neil Armstrong <narmstrong@baylibre.com>
Cc: Kevin Hilman <khilman@baylibre.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
Daniel Vetter <daniel@ffwll.ch>,
linux-amlogic@lists.infradead.org,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v5 1/8] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression
Date: Tue, 21 Apr 2020 14:16:41 +0200 [thread overview]
Message-ID: <20200421121641.GU3456981@phenom.ffwll.local> (raw)
In-Reply-To: <25f5ed14-2caf-6b2b-2cd4-3dbf0dd9a03c@baylibre.com>
On Mon, Apr 20, 2020 at 12:21:24PM +0200, Neil Armstrong wrote:
> On 17/04/2020 20:14, Daniel Vetter wrote:
> > On Fri, Apr 17, 2020 at 6:05 PM Neil Armstrong <narmstrong@baylibre.com> wrote:
> >>
> >> On 17/04/2020 17:07, Daniel Vetter wrote:
>
> [...]
>
> >
> > Yup there's a number of parametried modifiers. As long as the stuff
> > you get from a DRM_FORMAT_MOD_ ... macro is a full modifier with
> > everything it should be all fine.
>
> Would something like that be ok ?
>
> #define __fourcc_mod_amlogic_layout_mask 0xf
> #define __fourcc_mod_amlogic_options_shift 8
> #define __fourcc_mod_amlogic_options_mask 0xf
>
> #define DRM_FORMAT_MOD_AMLOGIC_FBC(__layout, __options) \
> fourcc_mod_code(AMLOGIC, \
> ((__layout) & __fourcc_mod_amlogic_layout_mask) | \
> ((options) & __fourcc_mod_amlogic_options_mask \
> << __fourcc_mod_amlogic_options_shift))
>
> /* Amlogic FBC Layouts */
>
> /* bla */
> #define AMLOGIC_FBC_LAYOUT_BASIC (1ULL)
>
> /* bla */
> #define AMLOGIC_FBC_LAYOUT_SCATTER (2ULL)
>
> /* Amlogic FBC Layout Options Bit Mask */
>
> /* bla */
> #define AMLOGIC_FBC_OPTION_MEM_SAVING (1ULL << 0)
lgtm.
-Daniel
>
> Neil
>
> > -Daniel
> >
> >> Neil
> >>
> >>> -Daniel
> >>>
> >>>> +
> >>>> #if defined(__cplusplus)
> >>>> }
> >>>> #endif
> >>>> --
> >>>> 2.22.0
> >>>>
> >>>
> >>
> >> _______________________________________________
> >> dri-devel mailing list
> >> dri-devel@lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> >
> >
> >
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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next prev parent reply other threads:[~2020-04-21 12:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-16 15:24 [PATCH v5 0/8] drm/meson: add support for Amlogic Video FBC Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 1/8] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression Neil Armstrong
2020-04-17 15:07 ` Daniel Vetter
2020-04-17 16:05 ` Neil Armstrong
2020-04-17 16:11 ` Neil Armstrong
2020-04-17 18:14 ` Daniel Vetter
2020-04-20 10:21 ` Neil Armstrong
2020-04-21 12:16 ` Daniel Vetter [this message]
2020-04-21 13:14 ` Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 2/8] drm/meson: add Amlogic Video FBC registers Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 3/8] drm/meson: overlay: setup overlay for Amlogic FBC Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 4/8] drm/meson: crtc: handle commit of Amlogic FBC frames Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 5/8] drm/fourcc: amlogic: Add modifier definitions for Memory Saving option Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 6/8] drm/meson: overlay: setup overlay for Amlogic FBC Memory Saving mode Neil Armstrong
2020-04-16 15:24 ` [PATCH v5 7/8] drm/fourcc: amlogic: Add modifier definitions for the Scatter layout Neil Armstrong
2020-04-16 15:25 ` [PATCH v5 8/8] drm/meson: overlay: setup overlay for Amlogic FBC Scatter Memory layout Neil Armstrong
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