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  1. The marketing names are confusing, but the hw...

    The marketing names are confusing, but the hw breaks down like this:

    Southern Islands GPUs (GCN 1.0):
    Tahiti (7xxx, R9 280), Pitcairn (7xxx, R9 270), Cape Verde (7xxx, R7 250), Oland (8xxx, R7...
  2. Not exactly. R7 260 and 260x are sea islands...

    Not exactly. R7 260 and 260x are sea islands parts, same as hawaii.
  3. EXA, UXA, and SNA all use the 3D engine (the same...

    EXA, UXA, and SNA all use the 3D engine (the same hardware OpenGL uses). In fact very few GPUs even have an 2D engine anymore. The main difference between glamor and everything else is that glamor...
  4. My point is that it's still reverse engineering...

    My point is that it's still reverse engineering whether you are trying to figure out how the hw works or how the driver is structured.
  5. I'm not sure what you consider reverse...

    I'm not sure what you consider reverse engineering, but that sounds like the definition of it to me...
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    FUll HSA support requires an APU/CPU/chipset with...

    FUll HSA support requires an APU/CPU/chipset with an iommu that supports ats/pasid. Kabini does not have a compatible iommu.
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    RIght now you are limited to Kaveri.

    RIght now you are limited to Kaveri.
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    The second one is alway very specific; it's to...

    The second one is alway very specific; it's to mazimize internal links for ad revenue. The next time there is an article that mentions 100,000, it can link back to this article.
  9. Try comparing any X acceleration to software...

    Try comparing any X acceleration to software rendering. XAA is basically software rendering.
  10. It's not that the 2D engine is faster or that XAA...

    It's not that the 2D engine is faster or that XAA or EXA accelerates more stuff. 2D and 3D engines have different capabilities. 2D engines can can basically do 3 things:
    1. blit (move rectangles...
  11. glamor is not enabled by default for any asics...

    glamor is not enabled by default for any asics other than SI and newer. The changes mentioned for r3xx-r5xx just allow you to force glamor on via xorg.conf option for users that want to play with it.
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    The problem is the GL versions historically...

    The problem is the GL versions historically tended to lag the DX versions. HW vendors design for DX and what they think will end up in the next OpenGL version plus any vendor specific features they...
  13. vm_size is the size of the GPU's virtual address...

    vm_size is the size of the GPU's virtual address space. It's the amount of virtual address space into which GPU accessible buffers can be mapped. The larger the address space, the more vram is used...
  14. It was enabled by default and the the number of...

    It was enabled by default and the the number of bugs was more than we could deal with which is why it was disabled by default. Others can look into it too. All of the relevant registers are exposed...
  15. 6870 (barts) doesn't support VM. The only NI...

    6870 (barts) doesn't support VM. The only NI parts with VM are cayman and trinity/richland.
  16. The only NI asics that support VM are cayman and...

    The only NI asics that support VM are cayman and trinity/richland and VM is disabled by default on those asics so none of these changes affect pre-SI chips by default.
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    Gallium was designed around the idea (from DX),...

    Gallium was designed around the idea (from DX), that the GPU will be able to support in hardware, all of the features required for the API exposed. If the hardware does not expose enough hardware...
  18. Fewer developers.

    Fewer developers.
  19. That is the nature of AGP. It's an external...

    That is the nature of AGP. It's an external aperture set up the the bios with support from the chipset. You basically just point the GPU at the AGP aperture and the northbridge does the rest.
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    The open source driver has all the features you...

    The open source driver has all the features you want right now and more (video decode via vdpau/openmax, video encode via openmax), it's just that debian chooses not to package it. It should work...
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