Symbol: PAGE_KERNEL_IO
sys/dev/pci/drm/i915/gem/i915_gem_pages.c
311
pgprot = pgprot_writecombine(PAGE_KERNEL_IO);
sys/dev/pci/drm/i915/gem/i915_gem_pages.c
355
vaddr = vmap_pfn(pfns, n_pfn, pgprot_writecombine(PAGE_KERNEL_IO));