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Open ATI R600/700 Driver Gains Tiling Support

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  • #16
    Any performance boosts for the R500 cards? My ATI Radeon X1950 has been horridly slow ever since Catalyst dropped suppport for my card.

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    • #17
      aliendude, are you running with the classic Mesa HW drivers or the new Gallium3D-based ("300g") stack ? The classic HW drivers are still the default but 300g is getting close enough to becoming the default that it's probably worth giving it a try.

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      • #18
        Originally posted by LiquidAcid View Post
        I consider UMS deprecated and I strongly suggest to use KMS, which works fairly well - even when using stable (vs. experimental) kernels.
        Well KMS still causes my screen to go black when I boot as soon as the radeon module loads. After I login and start x blind it comes up but my screen on my laptop flickers for about 5 minutes before it solidifies. Every benchmark I run with KMS shows a performance hit.

        I don't think I'm going to switch to KMS anytime soon.

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        • #19
          Originally posted by Obscene_CNN View Post
          Well KMS still causes my screen to go black when I boot as soon as the radeon module loads.
          You need to have fbcon loaded or built into your kernel in order to get a console on the fbdev interface provided by the drm.

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          • #20
            Are these patches (tiling) in any of the git branches? I don't see them in drm-next or drm-radeon-testing

            I'd like to test these along with the voltage setting patches, but I don't want to mess around with applying these patches manually I'm too lazy to modify my shiny PKGBUILD

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            • #21
              Just as you say yourself: No, they aren't in any of the usual branches.

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              • #22
                Originally posted by Obscene_CNN View Post
                Well KMS still causes my screen to go black when I boot as soon as the radeon module loads.
                Have you tried adding the nosplash option to the kernel?

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                • #23
                  Yet again, I'm impressed. Devs seem to keep being awesome. :3

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                  • #24
                    Originally posted by Neuro View Post
                    Are these patches (tiling) in any of the git branches? I don't see them in drm-next or drm-radeon-testing

                    I'd like to test these along with the voltage setting patches, but I don't want to mess around with applying these patches manually I'm too lazy to modify my shiny PKGBUILD
                    There were some new commits in drm-radeon-testing this morning. I think this are the patches for voltage and tiling support.

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                    • #25
                      Can confirm this, the new commits are indeed the 'missing' tiling patches and the r6xx+ voltage stuff. Now updating...

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                      • #26
                        The new commits also include Alex's initial CS checker for Evergreen, allowing the submission of acceleration commands :

                        http://git.kernel.org/?p=linux/kerne...38780badf13ecd

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                        • #27
                          I updated the drm-radeon-testing branch. But Xorg.0.log shows me:
                          (WW) RADEON(0): Color tiling is not yet supported on R600/R700
                          Is xorg 1.8 required?

                          And how can i check if voltage setting is enabled?

                          Thanks

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                          • #28
                            Originally posted by bridgman View Post
                            The new commits also include Alex's initial CS checker for Evergreen, allowing the submission of acceleration commands :

                            http://git.kernel.org/?p=linux/kerne...38780badf13ecd
                            Yeah. I noticed that too. Especially this part:

                            The mesa code that uses this will be released soon.

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                            • #29
                              Originally posted by Perry3D View Post
                              I updated the drm-radeon-testing branch. But Xorg.0.log shows me:
                              I think you'll also need patches for the ddx. Which are to be found in the dri-devel mailing-list.

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                              • #30
                                There are patches required for the xf86-video-ati and mesa drivers as well as for drm. The patches are all on the dri-devel mailing list in the same batch of emails.

                                mesa :

                                http://lists.freedesktop.org/archive...ay/000841.html

                                http://lists.freedesktop.org/archive...ay/000842.html

                                http://lists.freedesktop.org/archive...ay/000843.html

                                ddx :

                                http://lists.freedesktop.org/archive...ay/000845.html

                                http://lists.freedesktop.org/archive...ay/000846.html

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