Index: head/sys/amd64/amd64/pmap.c
===================================================================
--- head/sys/amd64/amd64/pmap.c
+++ head/sys/amd64/amd64/pmap.c
@@ -604,8 +604,10 @@
 		    struct rwlock **lockp);
 static bool	pmap_pv_insert_pde(pmap_t pmap, vm_offset_t va, pd_entry_t pde,
 		    u_int flags, struct rwlock **lockp);
+#if VM_NRESERVLEVEL > 0
 static void	pmap_pv_promote_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa,
 		    struct rwlock **lockp);
+#endif
 static void	pmap_pvh_free(struct md_page *pvh, pmap_t pmap, vm_offset_t va);
 static pv_entry_t pmap_pvh_remove(struct md_page *pvh, pmap_t pmap,
 		    vm_offset_t va);
@@ -628,8 +630,10 @@
 		    pd_entry_t pde);
 static void pmap_kenter_attr(vm_offset_t va, vm_paddr_t pa, int mode);
 static void pmap_pde_attr(pd_entry_t *pde, int cache_bits, int mask);
+#if VM_NRESERVLEVEL > 0
 static void pmap_promote_pde(pmap_t pmap, pd_entry_t *pde, vm_offset_t va,
     struct rwlock **lockp);
+#endif
 static boolean_t pmap_protect_pde(pmap_t pmap, pd_entry_t *pde, vm_offset_t sva,
     vm_prot_t prot);
 static void pmap_pte_attr(pt_entry_t *pte, int cache_bits, int mask);
@@ -3359,6 +3363,7 @@
 	PV_STAT(atomic_subtract_int(&pv_entry_spare, NPTEPG - 1));
 }
 
+#if VM_NRESERVLEVEL > 0
 /*
  * After promotion from 512 4KB page mappings to a single 2MB page mapping,
  * replace the many pv entries for the 4KB page mappings by a single pv entry
@@ -3399,6 +3404,7 @@
 		pmap_pvh_free(&m->md, pmap, va);
 	} while (va < va_last);
 }
+#endif /* VM_NRESERVLEVEL > 0 */
 
 /*
  * First find and then destroy the pv entry for the specified pmap and virtual
@@ -4243,6 +4249,7 @@
 	PMAP_UNLOCK(pmap);
 }
 
+#if VM_NRESERVLEVEL > 0
 /*
  * Tries to promote the 512, contiguous 4KB page mappings that are within a
  * single page table page (PTP) to a single 2MB page mapping.  For promotion
@@ -4371,6 +4378,7 @@
 	CTR2(KTR_PMAP, "pmap_promote_pde: success for va %#lx"
 	    " in pmap %p", va, pmap);
 }
+#endif /* VM_NRESERVLEVEL > 0 */
 
 /*
  *	Insert the given physical page (p) at
@@ -4599,6 +4607,7 @@
 
 unchanged:
 
+#if VM_NRESERVLEVEL > 0
 	/*
 	 * If both the page table page and the reservation are fully
 	 * populated, then attempt promotion.
@@ -4608,6 +4617,7 @@
 	    (m->flags & PG_FICTITIOUS) == 0 &&
 	    vm_reserv_level_iffullpop(m) == 0)
 		pmap_promote_pde(pmap, pde, va, &lock);
+#endif
 
 	rv = KERN_SUCCESS;
 out:
@@ -7171,7 +7181,9 @@
 {
 	int rv;
 	struct rwlock *lock;
+#if VM_NRESERVLEVEL > 0
 	vm_page_t m, mpte;
+#endif
 	pd_entry_t *pde;
 	pt_entry_t *pte, PG_A, PG_M, PG_RW, PG_V;
 
@@ -7226,6 +7238,7 @@
 		*pte |= PG_A;
 	}
 
+#if VM_NRESERVLEVEL > 0
 	/* try to promote the mapping */
 	if (va < VM_MAXUSER_ADDRESS)
 		mpte = PHYS_TO_VM_PAGE(*pde & PG_FRAME);
@@ -7243,6 +7256,8 @@
 		atomic_add_long(&ad_emulation_superpage_promotions, 1);
 #endif
 	}
+#endif
+
 #ifdef INVARIANTS
 	if (ftype == VM_PROT_WRITE)
 		atomic_add_long(&num_dirty_emulations, 1);
Index: head/sys/arm/arm/pmap-v6.c
===================================================================
--- head/sys/arm/arm/pmap-v6.c
+++ head/sys/arm/arm/pmap-v6.c
@@ -3165,6 +3165,7 @@
 	} while (va < va_last);
 }
 
+#if VM_NRESERVLEVEL > 0
 static void
 pmap_pv_promote_pte1(pmap_t pmap, vm_offset_t va, vm_paddr_t pa)
 {
@@ -3198,6 +3199,7 @@
 		pmap_pvh_free(&m->md, pmap, va);
 	} while (va < va_last);
 }
+#endif
 
 /*
  *  Conditionally create a pv entry.
@@ -3405,6 +3407,7 @@
 }
 #endif
 
+#if VM_NRESERVLEVEL > 0
 /*
  *  Tries to promote the NPTE2_IN_PT2, contiguous 4KB page mappings that are
  *  within a single page table page (PT2) to a single 1MB page mapping.
@@ -3532,6 +3535,7 @@
 	PDEBUG(6, printf("%s(%p): success for va %#x pte1 %#x(%#x) at %p\n",
 	    __func__, pmap, va, npte1, pte1_load(pte1p), pte1p));
 }
+#endif /* VM_NRESERVLEVEL > 0 */
 
 /*
  *  Zero L2 page table page.
@@ -4053,6 +4057,8 @@
 		    va, opte2, npte2);
 	}
 #endif
+
+#if VM_NRESERVLEVEL > 0
 	/*
 	 * If both the L2 page table page and the reservation are fully
 	 * populated, then attempt promotion.
@@ -4061,6 +4067,7 @@
 	    sp_enabled && (m->flags & PG_FICTITIOUS) == 0 &&
 	    vm_reserv_level_iffullpop(m) == 0)
 		pmap_promote_pte1(pmap, pte1p, va);
+#endif
 	sched_unpin();
 	rw_wunlock(&pvh_global_lock);
 	PMAP_UNLOCK(pmap);
Index: head/sys/arm64/arm64/pmap.c
===================================================================
--- head/sys/arm64/arm64/pmap.c
+++ head/sys/arm64/arm64/pmap.c
@@ -105,6 +105,8 @@
  *	and to when physical maps must be made correct.
  */
 
+#include "opt_vm.h"
+
 #include <sys/param.h>
 #include <sys/bitstring.h>
 #include <sys/bus.h>
@@ -2677,6 +2679,7 @@
 	intr_restore(intr);
 }
 
+#if VM_NRESERVLEVEL > 0
 /*
  * After promotion from 512 4KB page mappings to a single 2MB page mapping,
  * replace the many pv entries for the 4KB page mappings by a single pv entry
@@ -2790,6 +2793,7 @@
 	CTR2(KTR_PMAP, "pmap_promote_l2: success for va %#lx in pmap %p", va,
 		    pmap);
 }
+#endif /* VM_NRESERVLEVEL > 0 */
 
 /*
  *	Insert the given physical page (p) at
@@ -3045,12 +3049,14 @@
 		    (prot & VM_PROT_EXECUTE) != 0)
 			cpu_icache_sync_range(va, PAGE_SIZE);
 
+#if VM_NRESERVLEVEL > 0
 		if ((mpte == NULL || mpte->wire_count == NL3PG) &&
 		    pmap_superpages_enabled() &&
 		    (m->flags & PG_FICTITIOUS) == 0 &&
 		    vm_reserv_level_iffullpop(m) == 0) {
 			pmap_promote_l2(pmap, pde, va, &lock);
 		}
+#endif
 	}
 
 	if (lock != NULL)
Index: head/sys/i386/i386/pmap.c
===================================================================
--- head/sys/i386/i386/pmap.c
+++ head/sys/i386/i386/pmap.c
@@ -100,6 +100,7 @@
 #include "opt_cpu.h"
 #include "opt_pmap.h"
 #include "opt_smp.h"
+#include "opt_vm.h"
 #include "opt_xbox.h"
 
 #include <sys/param.h>
@@ -288,7 +289,9 @@
 static pv_entry_t get_pv_entry(pmap_t pmap, boolean_t try);
 static void	pmap_pv_demote_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa);
 static boolean_t pmap_pv_insert_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa);
+#if VM_NRESERVLEVEL > 0
 static void	pmap_pv_promote_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa);
+#endif
 static void	pmap_pvh_free(struct md_page *pvh, pmap_t pmap, vm_offset_t va);
 static pv_entry_t pmap_pvh_remove(struct md_page *pvh, pmap_t pmap,
 		    vm_offset_t va);
@@ -309,7 +312,9 @@
 static void pmap_kenter_attr(vm_offset_t va, vm_paddr_t pa, int mode);
 static void pmap_kenter_pde(vm_offset_t va, pd_entry_t newpde);
 static void pmap_pde_attr(pd_entry_t *pde, int cache_bits);
+#if VM_NRESERVLEVEL > 0
 static void pmap_promote_pde(pmap_t pmap, pd_entry_t *pde, vm_offset_t va);
+#endif
 static boolean_t pmap_protect_pde(pmap_t pmap, pd_entry_t *pde, vm_offset_t sva,
     vm_prot_t prot);
 static void pmap_pte_attr(pt_entry_t *pte, int cache_bits);
@@ -2504,6 +2509,7 @@
 	} while (va < va_last);
 }
 
+#if VM_NRESERVLEVEL > 0
 static void
 pmap_pv_promote_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa)
 {
@@ -2537,6 +2543,7 @@
 		pmap_pvh_free(&m->md, pmap, va);
 	} while (va < va_last);
 }
+#endif /* VM_NRESERVLEVEL > 0 */
 
 static void
 pmap_pvh_free(struct md_page *pvh, pmap_t pmap, vm_offset_t va)
@@ -3312,6 +3319,7 @@
 	PMAP_UNLOCK(pmap);
 }
 
+#if VM_NRESERVLEVEL > 0
 /*
  * Tries to promote the 512 or 1024, contiguous 4KB page mappings that are
  * within a single page table page (PTP) to a single 2- or 4MB page mapping.
@@ -3448,6 +3456,7 @@
 	CTR2(KTR_PMAP, "pmap_promote_pde: success for va %#x"
 	    " in pmap %p", va, pmap);
 }
+#endif /* VM_NRESERVLEVEL > 0 */
 
 /*
  *	Insert the given physical page (p) at
@@ -3664,6 +3673,7 @@
 			pte_store(pte, newpte);
 	}
 
+#if VM_NRESERVLEVEL > 0
 	/*
 	 * If both the page table page and the reservation are fully
 	 * populated, then attempt promotion.
@@ -3672,6 +3682,7 @@
 	    pg_ps_enabled && (m->flags & PG_FICTITIOUS) == 0 &&
 	    vm_reserv_level_iffullpop(m) == 0)
 		pmap_promote_pde(pmap, pde, va);
+#endif
 
 	sched_unpin();
 	rw_wunlock(&pvh_global_lock);