From 00731155a73020c8e3c215723be193f96b4fcb1f Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 21 May 2014 12:42:56 +0100 Subject: [PATCH] drm/i915: Fix dynamic allocation of physical handles MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit A single object may be referenced by multiple registers fundamentally breaking the static allotment of ids in the current design. When the object is used the second time, the physical address of the first assignment is relinquished and a second one granted. However, the hardware is still reading (and possibly writing) to the old physical address now returned to the system. Eventually hilarity will ensue, but in the short term, it just means that cursors are broken when using more than one pipe. v2: Fix up leak of pci handle when handling an error during attachment, and avoid a double kmap/kunmap. (Ville) Rebase against -fixes. v3: And fix the error handling added in v2 (Ville) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77351 Signed-off-by: Chris Wilson Cc: Ville Syrjälä Cc: Jani Nikula Cc: stable@vger.kernel.org Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- Reading git-format-patch failed