39 lines
1.9 KiB
Plaintext
39 lines
1.9 KiB
Plaintext
TODO
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. check error handling/cleanup paths
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. add drm_plane / overlay support
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. add video decode/encode support (via syslink3 + codec-engine)
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. still some rough edges with flipping.. event back to userspace should
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really come after VSYNC interrupt
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. where should we do eviction (detatch_pages())? We aren't necessarily
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accessing the pages via a GART, so maybe we need some other threshold
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to put a cap on the # of pages that can be pin'd. (It is mostly only
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of interest in case you have a swap partition/file.. which a lot of
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these devices do not.. but it doesn't hurt for the driver to do the
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right thing anyways.)
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. Use mm_shrinker to trigger unpinning pages. Need to figure out how
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to handle next issue first (I think?)
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. Note TTM already has some mm_shrinker stuff.. maybe an argument to
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move to TTM? Or maybe something that could be factored out in common?
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. GEM/shmem backed pages can have existing mappings (kernel linear map,
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etc..), which isn't really ideal.
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. Revisit GEM sync object infrastructure.. TTM has some framework for this
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already. Possibly this could be refactored out and made more common?
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There should be some way to do this with less wheel-reinvention.
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. Review DSS vs KMS mismatches. The omap_dss_device is sort of part encoder,
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part connector. Which results in a bit of duct tape to fwd calls from
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encoder to connector. Possibly this could be done a bit better.
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. Solve PM sequencing on resume. DMM/TILER must be reloaded before any
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access is made from any component in the system. Which means on suspend
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CRTC's should be disabled, and on resume the LUT should be reprogrammed
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before CRTC's are re-enabled, to prevent DSS from trying to DMA from a
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buffer mapped in DMM/TILER before LUT is reloaded.
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. Add debugfs information for DMM/TILER
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Userspace:
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. git://github.com/robclark/xf86-video-omap.git
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Currently tested on
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. OMAP3530 beagleboard
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. OMAP4430 pandaboard
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. OMAP4460 pandaboard
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