4 files changed, 82 insertions, 0 deletions
diff --git a/sys/powerpc/aim/mmu_oea.c b/sys/powerpc/aim/mmu_oea.c
index 740b99d..f919550 100644
--- a/sys/powerpc/aim/mmu_oea.c
+++ b/sys/powerpc/aim/mmu_oea.c
@@ -1897,3 +1897,30 @@ pmap_new_proc(struct proc *p)
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
+
+void *
+pmap_mapdev(vm_offset_t pa, vm_size_t len)
+{
+	vm_offset_t     faddr;
+	vm_offset_t     taddr, va;
+	int             off;
+
+	faddr = trunc_page(pa);
+	off = pa - faddr;
+	len = round_page(off + len);
+
+	GIANT_REQUIRED;
+
+	va = taddr = kmem_alloc_pageable(kernel_map, len);
+
+	if (va == 0)
+		return NULL;
+
+	for (; len > 0; len -= PAGE_SIZE) {
+		pmap_kenter(taddr, faddr);
+		faddr += PAGE_SIZE;
+		taddr += PAGE_SIZE;
+	}
+
+	return (void *)(va + off);
+}
diff --git a/sys/powerpc/include/pmap.h b/sys/powerpc/include/pmap.h
index 26c0d6a..ce744d9 100644
--- a/sys/powerpc/include/pmap.h
+++ b/sys/powerpc/include/pmap.h
@@ -96,6 +96,7 @@ extern vm_offset_t	virtual_avail;
 extern vm_offset_t	virtual_end;
 
 void pmap_bootstrap __P((void));
+void *pmap_mapdev __P((vm_offset_t, vm_size_t));
 void pmap_setavailmem __P((u_int kernelstart, u_int kernelend));
 vm_offset_t pmap_steal_memory __P((vm_size_t));
 boolean_t ptemodify __P((struct vm_page *, u_int, u_int));
diff --git a/sys/powerpc/powerpc/mmu_oea.c b/sys/powerpc/powerpc/mmu_oea.c
index 740b99d..f919550 100644
--- a/sys/powerpc/powerpc/mmu_oea.c
+++ b/sys/powerpc/powerpc/mmu_oea.c
@@ -1897,3 +1897,30 @@ pmap_new_proc(struct proc *p)
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
+
+void *
+pmap_mapdev(vm_offset_t pa, vm_size_t len)
+{
+	vm_offset_t     faddr;
+	vm_offset_t     taddr, va;
+	int             off;
+
+	faddr = trunc_page(pa);
+	off = pa - faddr;
+	len = round_page(off + len);
+
+	GIANT_REQUIRED;
+
+	va = taddr = kmem_alloc_pageable(kernel_map, len);
+
+	if (va == 0)
+		return NULL;
+
+	for (; len > 0; len -= PAGE_SIZE) {
+		pmap_kenter(taddr, faddr);
+		faddr += PAGE_SIZE;
+		taddr += PAGE_SIZE;
+	}
+
+	return (void *)(va + off);
+}
diff --git a/sys/powerpc/powerpc/pmap.c b/sys/powerpc/powerpc/pmap.c
index 740b99d..f919550 100644
--- a/sys/powerpc/powerpc/pmap.c
+++ b/sys/powerpc/powerpc/pmap.c
@@ -1897,3 +1897,30 @@ pmap_new_proc(struct proc *p)
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
+
+void *
+pmap_mapdev(vm_offset_t pa, vm_size_t len)
+{
+	vm_offset_t     faddr;
+	vm_offset_t     taddr, va;
+	int             off;
+
+	faddr = trunc_page(pa);
+	off = pa - faddr;
+	len = round_page(off + len);
+
+	GIANT_REQUIRED;
+
+	va = taddr = kmem_alloc_pageable(kernel_map, len);
+
+	if (va == 0)
+		return NULL;
+
+	for (; len > 0; len -= PAGE_SIZE) {
+		pmap_kenter(taddr, faddr);
+		faddr += PAGE_SIZE;
+		taddr += PAGE_SIZE;
+	}
+
+	return (void *)(va + off);
+}