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airlied
airlied
:.:..:.

May 2017
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airlied [userpic]
Initial KMS support for radeons merged to Linus tree.

Okay radeon TTM/KMS has landed in Linus tree under staging.

To enable it you need to enable CONFIG_DRM_RADEON_KMS, which relies on CONFIG_STAGING being set.

please read the CONFIG_STAGING warnings, esp the
"Please note that these drivers are under heavy
development, may or may not work, and may contain userspace
interfaces that most likely will be changed in the near
future."

Now to get a userspace that can use this code you need to get

git://git.freedesktop.org/git/mesa/libdrm master branch
and build it with --enable-radeon-experimental-api and install that.

git://git.freedesktop.org/git/xorg/driver/xf86-video-ati kms-support branch
build that second

git://git.freedesktop.org/git/mesa/mesa.git master branch
build this with libdrm_radeon somewhere that pkgconfig can find it.

You should either have KMS + DRI2, or a pile of smoking trash.

Please report any mode type issues on #radeon or dri-devel mailing list.

If you can't compile or configure your system to use this please wait until you have a distro do it for you.

If you are using Fedora 11, grab the latest xf86-video-ati from koji and all you need is the new kernel bits.

Known issues:
My DDX reports something about DRM 2.0.0 and wanting 1.2.x or something like that, you messed up setting up the DDX or are
still using the system DDX.
Xv might be broken on resize (or normally)
r600/r700 doesn't work (no surprise its not ready yet)

Comments
Re: Strange

Oh yes and the extract from my xorg log:

(II) [drm] DRM interface version 1.3
(II) [drm] Could not create SAREA for DRM lock.
(EE) RADEON(0): [dri] DRIGetVersion failed to open the DRM
[dri] Disabling DRI.
(EE) RADEON(0): Kernel modesetting setup failed
(II) UnloadModule: "radeon"
(EE) Screen(s) found, but none have a usable configuration.

And as I said KMS and Xorg is working fine with other kernels

(Anonymous)
Re: Strange

See the comments on the previous post, you probably need the following patch:
xxxxx@gentoo-node1 .../kernel/kernel_patches $ cat 2700-reapply-6c51d1-do-not-associate_DRM_DRIVER-maps-with-a-master.patch
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index 80a2575..0411d91 100644 (file)
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -371,8 +371,7 @@ static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
list->user_token = list->hash.key << PAGE_SHIFT;
mutex_unlock(&dev->struct_mutex);

- if (!(map->flags & _DRM_DRIVER))
- list->master = dev->primary->master;
+ list->master = dev->primary->master;
*maplist = list;
return 0;
}
Thanks goes to the user that posted it (Christophe?).

Cheers,
Neo2

Re: Strange

Yip that did the trick

Cheers