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AMD Adds 17 More PCI IDs For RDNA2 GPUs To Their Linux Driver

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  • skeevy420
    replied
    Originally posted by bridgman View Post

    Agreed. I had assumed we would do that as well, but agd5f pointed out that changing the names after up-streaming was a much bigger and riskier effort than I had anticipated because of the impact on stable kernel branches - changes made for the tip of the kernel tree (with new names) are expected to cleanly apply on "stable" source trees with old names. The same applies for all the distro per-release branches

    I still have a nagging feeling that there should be a practical approach to handle that but it's certainly more complicated than I first expected. There are probably other cases where a change targeting the tips of the kernel tree requires modification in order to apply on stable, but I *think* the current kernel processes make the stable maintainer responsible for that modification...

    ... and there seems to be general consensus that annoying the stable maintainer (is it still GregKH ?) would a really bad idea

    Agree that an official decoder ring would be a good start.


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  • bridgman
    replied
    Originally posted by yump View Post
    I really wish AMD would go back after the products have been officially announced, and replace these opaque code names with the marketing names of the chips. Or at least commit an officially blessed decoder ring to the kernel source tree. It's a bear of a time trying to figure out which parts of /drivers/gpu/drm/amd actually pertain to my video card.
    Agreed. I had assumed we would do that as well, but agd5f pointed out that changing the names after up-streaming was a much bigger and riskier effort than I had anticipated because of the impact on stable kernel branches - changes made for the tip of the kernel tree (with new names) are expected to cleanly apply on "stable" source trees with old names. The same applies for all the distro per-release branches

    I still have a nagging feeling that there should be a practical approach to handle that but it's certainly more complicated than I first expected. There are probably other cases where a change targeting the tips of the kernel tree requires modification in order to apply on stable, but I *think* the current kernel processes make the stable maintainer responsible for that modification...

    ... and there seems to be general consensus that annoying the stable maintainer (is it still GregKH ?) would a really bad idea

    Agree that an official decoder ring would be a good start.
    Last edited by bridgman; 28 August 2021, 01:45 PM.

    Leave a comment:


  • jaxa
    replied
    Originally posted by flashmozzg View Post
    It's still weird there is no non-XT 6700 version.
    They are probably getting great yields on the smaller die, and they'll make more profit selling a 6700 XT than a non-XT. And everything they put on the market will sell nearly instantly at this time. Suddenly, it's not so weird.

    Leave a comment:


  • yump
    replied
    "Sienna Chichlid"

    "Dimgrey Cavefish"

    I really wish AMD would go back after the products have been officially announced, and replace these opaque code names with the marketing names of the chips. Or at least commit an officially blessed decoder ring to the kernel source tree. It's a bear of a time trying to figure out which parts of /drivers/gpu/drm/amd actually pertain to my video card.

    Leave a comment:


  • flashmozzg
    replied
    It's still weird there is no non-XT 6700 version.

    Leave a comment:


  • linuxgeex
    replied
    This announcement and the Ubuntu 22.04 timeline announcement landed nearly simultaneously.

    The coming 6000-series APUs will step up to RDNA2, so that will be some of them.

    Put those two things together and it makes sense. AMD needs to get those PCI-IDs into the kernel so that there's a chance of those kernels being in the 1H 2022 Linux OS releases. Then there's a chance that users won't get black screens from the Ubuntu 22.04 installer the way they are from the 21.04 installer with 5600G/5700G today.
    Last edited by linuxgeex; 27 August 2021, 04:36 PM.

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  • jntesteves
    replied
    Originally posted by skeevy420 View Post

    Plus they use RDNA2 in a lot of their current consumer lines like game consoles and automotive as well as industrial lines like SOCs which means they'll be making and refining RDNA2 over the next 5-10 years. Definitely makes no sense to retire it when looked at from that perspective, too.
    Yeah, I wasn't even thinking about all the ramifications of RDNA2. Next Exynos chips by Samsung will use it too. Hopefully this translates into longterm driver improvements. Looks to me like be best line of GPU products to buy right now.

    Leave a comment:


  • skeevy420
    replied
    Originally posted by jntesteves View Post
    I don't remember where I've read about that but I was already expecting RDNA2 as entry- to mid-level products alongside RDNA3, and it makes a lot of sense. RDNA2 is currently miles ahead of any other products in market in terms of efficiency, so there's really no reason to retire them. The new chiplet products will be much bigger and unlikely to reach the same energy efficiency, so RDNA2 is expected to remain the technology leader in it's segments.

    I think RDNA2 was a unexpectedly big step forward for AMD and I'm planning my next (notebook) upgrade to that line of products, either the original or the refresh.
    Plus they use RDNA2 in a lot of their current consumer lines like game consoles and automotive as well as industrial lines like SOCs which means they'll be making and refining RDNA2 over the next 5-10 years. Definitely makes no sense to retire it when looked at from that perspective, too.

    Leave a comment:


  • jaxa
    replied
    Originally posted by [email protected] View Post
    Another possibility is they will make the RDNA2 cards the new low end in place of Polaris, and the rumored chiplet GPUs will be the high end.
    RDNA2 refresh on 6nm, RDNA3 both with or without chiplets on 5nm. More GPUs to sell, hopefully.

    Leave a comment:


  • jntesteves
    replied
    I don't remember where I've read about that but I was already expecting RDNA2 as entry- to mid-level products alongside RDNA3, and it makes a lot of sense. RDNA2 is currently miles ahead of any other products in market in terms of efficiency, so there's really no reason to retire them. The new chiplet products will be much bigger and unlikely to reach the same energy efficiency, so RDNA2 is expected to remain the technology leader in it's segments.

    I think RDNA2 was a unexpectedly big step forward for AMD and I'm planning my next (notebook) upgrade to that line of products, either the original or the refresh.

    Leave a comment:

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