From: Javier Martinez Canillas <javierm@redhat.com>
To: Thomas Zimmermann <tzimmermann@suse.de>,
simona@ffwll.ch, airlied@gmail.com,
maarten.lankhorst@linux.intel.com, mripard@kernel.org
Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann <tzimmermann@suse.de>
Subject: Re: [PATCH 14/18] drm/sysfb: Add efidrm for EFI displays
Date: Mon, 31 Mar 2025 11:35:28 +0200 [thread overview]
Message-ID: <8734eth7a7.fsf@minerva.mail-host-address-is-not-set> (raw)
In-Reply-To: <20250319083021.6472-15-tzimmermann@suse.de>
Thomas Zimmermann <tzimmermann@suse.de> writes:
> Add support for screen_info setups with VIDEO_TYPE_EFI. Provide the
> minimum functionality of reading modes, updating and clearing the display.
>
> There is existing support for these displays provided by simpledrm with
> CONFIG_SYSFB_SIMPLEFB=y. Using efidrm over simpledrm will allows for the
> mapping of video memory with correct caching. Simpledrm always assumes WC
> caching, while fully cached memory is possible with efidrm. Efidrm will
> also allow for the use of additional functionality provided by EFI, such
> as EDID information.
>
> In addition to efidrm, add struct pixel_format plus initializer macros.
> The type and macros describe pixel formats in a generic way on order to
> find the DRM format from the screen_info settings. Similar existing code
> in SIMPLEFB_FORMATS and fbdev is not really what is needed in efidrm,
> but SIMPLEFB_FORMATS can later be converted to struct pixel_format.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
next prev parent reply other threads:[~2025-03-31 9:35 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-19 7:44 [PATCH 00/18] drm: Provide helpers for system framebuffers and add efidrm/vesadrm Thomas Zimmermann
2025-03-19 7:45 ` [PATCH 01/18] drm/ofdrm: Remove struct ofdrm_device.pdev Thomas Zimmermann
2025-03-23 10:10 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 02/18] drm/ofdrm: Open-code drm_simple_encoder_init() Thomas Zimmermann
2025-03-23 10:12 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 03/18] drm/simpledrm: Remove struct simpledrm_device.nformats Thomas Zimmermann
2025-03-23 10:17 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 04/18] drm: Move sysfb drivers into separate subdirectory Thomas Zimmermann
2025-03-23 10:21 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 05/18] drm/sysfb: Add struct drm_sysfb_device Thomas Zimmermann
2025-03-23 10:39 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 06/18] drm/sysfb: Provide single mode-init helper Thomas Zimmermann
2025-03-23 10:41 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 07/18] drm/sysfb: Merge mode-config functions Thomas Zimmermann
2025-03-23 10:47 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 08/18] drm/sysfb: Merge connector functions Thomas Zimmermann
2025-03-23 10:57 ` Javier Martinez Canillas
2025-03-24 7:37 ` Thomas Zimmermann
2025-03-24 8:53 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 09/18] drm/sysfb: Maintain CRTC state in struct drm_sysfb_crtc_state Thomas Zimmermann
2025-03-31 8:08 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 10/18] drm/sysfb: Merge CRTC functions Thomas Zimmermann
2025-03-31 9:00 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 11/18] drm/sysfb: Merge primary-plane functions Thomas Zimmermann
2025-03-31 9:12 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 12/18] drm/sysfb: ofdrm: Add EDID support Thomas Zimmermann
2025-03-20 12:50 ` Jani Nikula
2025-03-20 13:08 ` Thomas Zimmermann
2025-03-31 9:26 ` Maxime Ripard
2025-03-31 9:32 ` Thomas Zimmermann
2025-03-31 9:15 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 13/18] firmware: sysfb: Move bpp-depth calculation into screen_info helper Thomas Zimmermann
2025-03-31 9:24 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 14/18] drm/sysfb: Add efidrm for EFI displays Thomas Zimmermann
2025-03-31 9:35 ` Javier Martinez Canillas [this message]
2025-03-19 7:45 ` [PATCH 15/18] drm/sysfb: efidrm: Add EDID support Thomas Zimmermann
2025-03-31 9:37 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 16/18] drm/sysfb: Add vesadrm for VESA displays Thomas Zimmermann
2025-03-31 9:42 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 17/18] drm/sysfb: vesadrm: Add EDID support Thomas Zimmermann
2025-03-31 9:44 ` Javier Martinez Canillas
2025-03-19 7:45 ` [PATCH 18/18] drm/sysfb: vesadrm: Add gamma correction Thomas Zimmermann
2025-03-31 9:47 ` Javier Martinez Canillas
2025-03-19 12:50 ` [PATCH 00/18] drm: Provide helpers for system framebuffers and add efidrm/vesadrm nerdopolis
2025-03-19 12:59 ` Thomas Zimmermann
2025-03-31 13:39 ` Thomas Zimmermann
2025-04-02 2:44 ` nerdopolis
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