Re: [PATCH 5.0 44/89] Revert "drm/i915/fbdev: Actually configure untiled displays"

From: Sasha Levin
Date: Wed May 01 2019 - 09:06:52 EST

On Wed, May 01, 2019 at 09:02:08AM -0400, Sasha Levin wrote:
On Tue, Apr 30, 2019 at 01:38:35PM +0200, Greg Kroah-Hartman wrote:
From: Dave Airlie <airlied@xxxxxxxxxx>

commit 9fa246256e09dc30820524401cdbeeaadee94025 upstream.

This reverts commit d179b88deb3bf6fed4991a31fd6f0f2cad21fab5.

This commit is documented to break userspace modesetting driver in certain configurations.

The modesetting userspace driver is broken. No fixes are available yet. In order for this patch to be applied it either needs a config option or a workaround developed.

This has been reported a few times, saying it's a userspace problem is clearly against the regression rules.

Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v3.19+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

This commit has a follow-up fix as abbc0697d5fbf ("drm/fb: revert the
i915 Actually configure untiled displays from master").

Uh, sorry, ignore that. I mixed stuff up. Not enough coffee.