Chris Wilson 0e53656ad8 drm/i915: Fix mismatch between misplaced vma check and vma insert ... When inserting a VMA, we restrict the placement to the low 4G unless the caller opts into using the full range. This was done to allow usersapce the opportunity to transition slowly from a 32b address space, and to avoid breaking inherent 32b assumptions of some commands. However, for insert we limited ourselves to 4G-4K, but on verification we allowed the full 4G. This causes some attempts to bind a new buffer to sporadically fail with -ENOSPC, but at other times be bound successfully. commit 48ea1e32c3 ("drm/i915/gen9: Set PIN_ZONE_4G end to 4GB - 1 page") suggests that there is a genuine problem with stateless addressing that cannot utilize the last page in 4G and so we purposefully excluded it. This means that the quick pin pass may cause us to utilize a buggy placement. Reported-by: CQ Tang <cq.tang@intel.com> Testcase: igt/gem_exec_params/larger-than-life-batch Fixes: 48ea1e32c3 ("drm/i915/gen9: Set PIN_ZONE_4G end to 4GB - 1 page") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: CQ Tang <cq.tang@intel.com> Reviewed-by: CQ Tang <cq.tang@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Cc: <stable@vger.kernel.org> # v4.5+ Link: https://patchwork.freedesktop.org/patch/msgid/20201216092951.7124-1-chris@chris-wilson.co.uk (cherry picked from commit 5f22cc0b13) Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2020-12-18 12:30:10 +02:00
..
drm	drm/i915: Fix mismatch between misplaced vma check and vma insert	2020-12-18 12:30:10 +02:00
host1x	gpu/host1x: bus: Add missing description for 'driver'	2020-11-05 22:12:55 +01:00
ipu-v3	gpu: ipu-v3: remove unused functions	2020-10-26 10:42:38 +01:00
trace
vga	vga_switcheroo: simplify the return expression of vga_switcheroo_runtime_resume	2020-09-22 15:20:29 +02:00
Makefile