On Wed, Nov 12, 2025 at 3:23 AM Thomas Zimmermann <[email protected]> wrote: > > Hi > > Am 07.11.25 um 21:46 schrieb Ian Forbes: > > Sets up VRAM as the scanout buffer then switches to legacy mode. > > Please use make this a bit more elaborate. > > Please also note that you don't set up VRAM, but return the scanout > information for the given plane. That could be a difference if there are > multiple planes. >
"VRAM" is a per device. It's not tied to a plane which is why we check the display unit ID to call this only once. It requires setup by mapping the mmio region and poking a register (CONFIG_DONE = false). I'm not sure how else to describe it other than "setup". > > Usually, you want to look at the plane's current framebuffer for this > information. > The Screen Target (default) mode allows resolutions larger than legacy/register mode can handle. These sizes are guaranteed to be safe for legacy mode.
smime.p7s
Description: S/MIME Cryptographic Signature
