Messages in this thread | | | Date | Tue, 22 Feb 2011 23:59:41 +0100 | From | Patrik Jakobsson <> | Subject | Re: [PATCH] gma500: Intel GMA500 staging driver |
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On 02/22/2011 04:40 PM, Matthew Garrett wrote: > On Tue, Feb 22, 2011 at 12:17:46PM +0000, Alan Cox wrote: >> This is an initial staging driver for the GMA500. It's been stripped out >> of the PVR drivers and crunched together from various bits of code and >> different kernels. >> >> Currently it's unaccelerated but still pretty snappy even compositing with >> the frame buffer X server. >> >> Lots of work is needed to rework the ttm and bo interfaces from being >> ripped out and then 2D acceleration wants putting back for framebuffer >> and somehow eventually via DRM.
>> +++ b/drivers/staging/gma500/psb_intel_sdvo.c > Does PSB really support SDVO? I thought by that period the only thing > it'd be used for was plug-in SDVO cards, which doesn't seem so likely > with PSB. > The Fit-PC2 needs SDVO for its DVI/HDMI output. The SDVO chip is likely put directly on the PCB. I tried to write my own driver for the gma500 (called it i500) which had all the SDVO stuff in place, but I never sorted out the TTM stuff so it's been gathering dust for quite some time now. >> diff --git a/drivers/staging/gma500/psb_ttm_fence.c b/drivers/staging/gma500/psb_ttm_fence.c > This really looks like it's intended to be core TTM functionality, so it > should probably go past dri-devel. > > This is definitely the best gma500 driver we've seen yet, but it seems > like there's two directions it can go. If the intention for now is to > provide a kernel-quality unaccelerated 2D driver then there's a *lot* > more code that can just be ripped out. If we want the acceleration to > work then there's an argument that we should be abstracting that into a > more generic SGX layer that other drivers can make use of. Does omapfb > have any acceleration? If so, is there anything we can build on there? From what I can see, omapfb doesn't have any acceleration, and yes, it would be very nice to have a generic SGX layer.
Cheers Patrik Jakobsson
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