Chris Wilson 4caf017ee9 drm/i915/gem: Avoid implicit vmap for highmem on x86-32 ... On 32b, highmem using a finite set of indirect PTE (i.e. vmap) to provide virtual mappings of the high pages. As these are finite, map_new_virtual() must wait for some other kmap() to finish when it runs out. If we map a large number of objects, there is no method for it to tell us to release the mappings, and we deadlock. However, if we make an explicit vmap of the page, that uses a larger vmalloc arena, and also has the ability to tell us to release unwanted mappings. Most importantly, it will fail and propagate an error instead of waiting forever. Fixes: fb8621d3be ("drm/i915: Avoid allocating a vmap arena for a single page") #x86-32 References: e87666b52f ("drm/i915/shrinker: Hook up vmap allocation failure notifier") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Cc: <stable@vger.kernel.org> # v4.7+ Link: https://patchwork.freedesktop.org/patch/msgid/20200915091417.4086-1-chris@chris-wilson.co.uk (cherry picked from commit 060bb115c2) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>		2020-09-30 14:24:17 -04:00
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drm	drm/i915/gem: Avoid implicit vmap for highmem on x86-32	2020-09-30 14:24:17 -04:00
host1x	drm: host1x: fix common struct sg_table related issues	2020-09-10 08:18:35 +02:00
ipu-v3	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
trace
vga	vgaarb: mark vga_tryget static	2020-08-01 11:28:17 +02:00
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