diff --git a/sys/dev/hwpmc/hwpmc_amd.c b/sys/dev/hwpmc/hwpmc_amd.c
--- a/sys/dev/hwpmc/hwpmc_amd.c
+++ b/sys/dev/hwpmc/hwpmc_amd.c
@@ -1175,8 +1175,6 @@
 	pcd->pcd_stop_pmc	= amd_stop_pmc;
 	pcd->pcd_write_pmc	= amd_write_pmc;
 
-	pmc_mdep->pmd_pcpu_init = NULL;
-	pmc_mdep->pmd_pcpu_fini = NULL;
 	pmc_mdep->pmd_intr	= amd_intr;
 	pmc_mdep->pmd_switch_in = amd_switch_in;
 	pmc_mdep->pmd_switch_out = amd_switch_out;
diff --git a/sys/dev/hwpmc/hwpmc_core.c b/sys/dev/hwpmc/hwpmc_core.c
--- a/sys/dev/hwpmc/hwpmc_core.c
+++ b/sys/dev/hwpmc/hwpmc_core.c
@@ -1294,9 +1294,6 @@
 	else
 		md->pmd_intr = core_intr;
 
-	md->pmd_pcpu_fini = NULL;
-	md->pmd_pcpu_init = NULL;
-
 	return (0);
 }
 
diff --git a/sys/dev/hwpmc/hwpmc_mod.c b/sys/dev/hwpmc/hwpmc_mod.c
--- a/sys/dev/hwpmc/hwpmc_mod.c
+++ b/sys/dev/hwpmc/hwpmc_mod.c
@@ -5490,8 +5490,6 @@
 
 	md->pmd_cputype    = PMC_CPU_GENERIC;
 
-	md->pmd_pcpu_init  = NULL;
-	md->pmd_pcpu_fini  = NULL;
 	md->pmd_switch_in  = generic_switch_in;
 	md->pmd_switch_out = generic_switch_out;
 
@@ -5634,8 +5632,6 @@
 		pmc_pcpu[cpu] = malloc(sizeof(struct pmc_cpu) +
 		    md->pmd_npmc * sizeof(struct pmc_hw *), M_PMC,
 		    M_WAITOK|M_ZERO);
-		if (md->pmd_pcpu_init)
-			error = md->pmd_pcpu_init(md, cpu);
 		for (n = 0; error == 0 && n < md->pmd_nclass; n++)
 			if (md->pmd_classdep[n].pcd_num > 0)
 				error = md->pmd_classdep[n].pcd_pcpu_init(md,
@@ -5879,8 +5875,6 @@
 				if (md->pmd_classdep[c].pcd_num > 0)
 					md->pmd_classdep[c].pcd_pcpu_fini(md,
 					    cpu);
-			if (md->pmd_pcpu_fini)
-				md->pmd_pcpu_fini(md, cpu);
 		}
 
 		if (md->pmd_cputype == PMC_CPU_GENERIC)
diff --git a/sys/sys/pmc.h b/sys/sys/pmc.h
--- a/sys/sys/pmc.h
+++ b/sys/sys/pmc.h
@@ -1043,10 +1043,6 @@
 	 * Machine dependent methods.
 	 */
 
-	/* per-cpu initialization and finalization */
-	int (*pmd_pcpu_init)(struct pmc_mdep *_md, int _cpu);
-	int (*pmd_pcpu_fini)(struct pmc_mdep *_md, int _cpu);
-
 	/* thread context switch in/out */
 	int (*pmd_switch_in)(struct pmc_cpu *_p, struct pmc_process *_pp);
 	int (*pmd_switch_out)(struct pmc_cpu *_p, struct pmc_process *_pp);