Messages in this thread | | | Date | Mon, 22 Jun 2009 12:43:06 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [git pull] drm: previous pull req + 1. |
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On Mon, 22 Jun 2009, Andrew Lutomirski wrote: > > What if we only guaranteed that the framebuffer is mapped when it's > showing on the screen?
I think that works ok. We only care about printk being immediate in that case, and if it gets buffered I don't think we care.
> printk doesn't need to write to the framebuffer immediately when X > isn't running (since the framebuffer isn't shown) and presumably the > framebuffer needs to be pinned somewhere when it's being displayed > anyway. This would involve fbcon knowing how to buffer text to be > shown later so that printk still works in interrupt context.
But doesn't fbcon do that _anyway_ for VC switching?
(I've tried to stay out of fbcon, and have traditionally personally always preferred just regular VGA text mode, so I really have no clue about the internals).
Linus
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