Since synchronising the PTE after assignment is a manual step, use the newly exported interface to flush the PTE after assigning via alloc_vm_area().
Reported-by: Pavel Machek <[email protected]> References: 2ba3e6947aed ("mm/vmalloc: track which page-table levels were modified") Signed-off-by: Chris Wilson <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Joerg Roedel <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Dave Airlie <[email protected]> Cc: Joonas Lahtinen <[email protected]> Cc: Rodrigo Vivi <[email protected]> Cc: Pavel Machek <[email protected]> Cc: <[email protected]> # v5.8+ --- drivers/gpu/drm/i915/gem/i915_gem_pages.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c index 7050519c87a4..0fee67f34d74 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c @@ -304,6 +304,7 @@ static void *i915_gem_object_map(struct drm_i915_gem_object *obj, for_each_sgt_daddr(addr, iter, sgt) **ptes++ = iomap_pte(iomap, addr, pgprot); } + flush_vm_area(area); if (mem != stack) kvfree(mem); -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
