Matthew Auld 4e1572b19c drm/i915/userptr: fix size calculation ... commit ecc4d2a52d upstream. If we create a rather large userptr object(e.g 1ULL << 32) we might shift past the type-width of num_pages: (int)num_pages << PAGE_SHIFT, resulting in a totally bogus sg_table, which fortunately will eventually manifest as: gen8_ppgtt_insert_huge:463 GEM_BUG_ON(iter->sg->length < page_size) kernel BUG at drivers/gpu/drm/i915/gt/gen8_ppgtt.c:463! v2: more unsigned long prefer I915_GTT_PAGE_SIZE Fixes: 5cc9ed4b9a ("drm/i915: Introduce mapping of user pages into video memory (userptr) ioctl") Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20200117132413.1170563-2-matthew.auld@intel.com (cherry picked from commit 8e78871bc1) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-29 16:45:31 +01:00
..
drm	drm/i915/userptr: fix size calculation	2020-01-29 16:45:31 +01:00
host1x	gpu: host1x: Allocate gather copy for host1x	2019-12-31 16:44:29 +01:00
ipu-v3	gpu: ipu-v3: image-convert: only sample into the next tile if necessary	2019-08-19 16:25:30 +02:00
vga
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