$ LANG=C grep bm_pte -rn arch/x86/

kernel

$ LANG=C grep bm_pte -rn arch/x86/
Binary file arch/x86/built-in.o matches
Binary file arch/x86/mm/built-in.o matches
arch/x86/mm/ioremap.c:347:static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
arch/x86/mm/ioremap.c:362:      return &bm_pte[pte_index(addr)];
arch/x86/mm/ioremap.c:367:      return ptep >= &bm_pte[0] && ptep < &bm_pte[PAGE_SIZE/sizeof(pte_t)];
arch/x86/mm/ioremap.c:384:      memset(bm_pte, 0, sizeof(bm_pte));
arch/x86/mm/ioremap.c:385:      pmd_populate_kernel(&init_mm, pmd, bm_pte);
Binary file arch/x86/mm/ioremap.o matches