Slightly improve the markup.

svn path=/head/; revision=131642

share/man/man9/pmap.9

@@ -50,9 +50,9 @@ is responsible for managing hardware-dependent objects such as page tables,
 address maps, TLBs, etc.
 .Pp
 Machine-dependent code must provide the header file
-.Em <machine/pmap.h> .
+.In machine/pmap.h .
 This file contains the definition of the
-.Dv pmap
+.Vt pmap
 structure:
 .Bd -literal -offset indent
 struct pmap {
@@ -66,7 +66,7 @@ This header file may also define other data structures used by the
 implementation.
 .Pp
 The header file
-.Em <vm/pmap.h>
+.In vm/pmap.h
 defines a structure for tracking
 .Nm
 statistics (see below).
@@ -79,11 +79,11 @@ struct pmap_statistics {
 .Ed
 .Pp
 The implementation's
-.Vt struct pmap
+.Vt "struct pmap"
 must contain an instance of this structure having the name
 .Va pm_stats ,
 and it must be updated by the implementation after each relevant
-.Nm pmap
+.Nm
 operation.
 .Sh SEE ALSO
 .Xr pmap 9 ,

share/man/man9/pmap_addr_hint.9

@@ -48,7 +48,7 @@ of
 bytes.
 .Sh IMPLEMENTATION NOTES
 This function is typically called on behalf of
-.Fn mmap .
+.Xr mmap 2 .
 .Sh RETURN VALUES
 If the implementation can use the address unchanged, it will simply
 return

share/man/man9/pmap_change_wiring.9

@@ -44,10 +44,11 @@ function changes the wiring attribute for the page at virtual address
 in the physical map
 .Fa pmap .
 A wired page gets its name from being
-.Sq wired
+.Dq wired
 into the system page tables so that it will not be paged out.
 .Pp
-The mapping must already exist in the pmap.
+The mapping must already exist in the
+.Fa pmap .
 If
 .Fa wired
 is

share/man/man9/pmap_clear_modify.9

@@ -43,14 +43,14 @@
 The
 .Fn pmap_clear_modify
 function clears the
-.Sq modified
+.Dq modified
 bit on the physical page
 .Fa m .
 .Pp
 The
 .Fn pmap_clear_reference
 function clears the
-.Sq referenced
+.Dq referenced
 bit on the physical page
 .Fa m .
 .Sh SEE ALSO

share/man/man9/pmap_copy.9

@@ -36,8 +36,10 @@
 .In vm/vm.h
 .In vm/pmap.h
 .Ft void
-.Fn pmap_copy "pmap_t dst_pmap" "pmap_t src_pmap" "vm_offset_t dst_addr" \
-"vm_size_t len" "vm_offset_t src_addr"
+.Fo pmap_copy
+.Fa "pmap_t dst_pmap" "pmap_t src_pmap" "vm_offset_t dst_addr"
+.Fa "vm_size_t len" "vm_offset_t src_addr"
+.Fc
 .Ft void
 .Fn pmap_copy_page "vm_page_t src" "vm_page_t dst"
 .Sh DESCRIPTION

share/man/man9/pmap_enter.9

@@ -35,8 +35,10 @@
 .In vm/vm.h
 .In vm/pmap.h
 .Ft void
-.Fn pmap_enter "pmap_t pmap" "vm_offset_t va" "vm_page_t p" "vm_prot_t prot" \
-"boolean_t wired"
+.Fo pmap_enter
+.Fa "pmap_t pmap" "vm_offset_t va" "vm_page_t p" "vm_prot_t prot"
+.Fa "boolean_t wired"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn pmap_enter

share/man/man9/pmap_extract.9

@@ -58,7 +58,7 @@ Currently, the page protection requested by the caller is not verified.
 In the
 .Fn pmap_extract_and_hold
 function, the
-.Dv Giant
+.Va Giant
 lock is held for the duration of the call to ensure that only a single
 caller is present.
 .Sh RETURN VALUES
@@ -71,7 +71,11 @@ inside the physical map
 .Fa pmap .
 If the mapping does not exist, or if the
 .Fa pmap
-parameter is NULL, then NULL will be returned.
+parameter is
+.Dv NULL ,
+then
+.Dv NULL
+will be returned.
 .Pp
 The
 .Fn pmap_extract_and_hold
@@ -80,7 +84,9 @@ virtual address
 .Fa va
 inside the physical map
 .Fa pmap .
-If the mapping does not exist, the result is a no-op, and NULL will
+If the mapping does not exist, the result is a no-op, and
+.Dv NULL
+will
 be returned.
 .Sh SEE ALSO
 .Xr mutex 9 ,

share/man/man9/pmap_is_modified.9

@@ -49,7 +49,7 @@ functions return information about physical pages.
 The
 .Fn pmap_is_modified
 function returns the status of the
-.Sq "page modified"
+.Dq "page modified"
 bit for the physical page
 .Fa m .
 .Pp

share/man/man9/pmap_is_prefaultable.9

@@ -47,7 +47,7 @@ in the physical map
 may be pre-faulted into main memory.
 .Pp
 This is a helper function which is called by
-.Fn vm_fault_prefault .
+.Xr vm_fault_prefault 9 .
 .Sh SEE ALSO
 .Xr pmap 9 ,
 .Xr vm_fault_prefault 9

share/man/man9/pmap_map.9

@@ -35,8 +35,9 @@
 .In vm/vm.h
 .In vm/pmap.h
 .Ft vm_offset_t
-.Fn pmap_map "vm_offset_t *virt" "vm_paddr_t start" "vm_paddr_t end" \
-"int prot"
+.Fo pmap_map
+.Fa "vm_offset_t *virt" "vm_paddr_t start" "vm_paddr_t end" "int prot"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn pmap_map

share/man/man9/pmap_mincore.9

@@ -44,7 +44,7 @@ function determines if the page at the virtual address
 in the physical map
 .Fa pmap
 is resident in physical memory.
-It is the machine-dependent interface used by
+It is the machine-dependent interface used by the
 .Xr mincore 2
 system call.
 .Sh RETURN VALUES
@@ -53,7 +53,7 @@ a mask of flags is returned,
 whose meaning is documented in
 .Xr mincore 2 ;
 otherwise,
-.Ql 0
+0
 is returned.
 .Pp
 The
@@ -64,7 +64,7 @@ must be mapped into the
 .Fa pmap .
 If any error occurs, the machine-dependent implementation should
 return
-.Ql 0 .
+0.
 .Sh SEE ALSO
 .Xr mincore 2 ,
 .Xr pmap 9

share/man/man9/pmap_object_init_pt.9

@@ -35,8 +35,10 @@
 .In vm/vm.h
 .In vm/pmap.h
 .Ft void
-.Fn pmap_object_init_pt "pmap_t pmap" "vm_offset_t addr" "vm_object_t object" \
-"vm_pindex_t pindex" "vm_size_t size" "int limit"
+.Fo pmap_object_init_pt
+.Fa "pmap_t pmap" "vm_offset_t addr" "vm_object_t object"
+.Fa "vm_pindex_t pindex" "vm_size_t size" "int limit"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn pmap_object_init_pt

share/man/man9/pmap_page_protect.9

@@ -38,8 +38,9 @@
 .Ft void
 .Fn pmap_page_protect "vm_page_t m" "vm_prot_t prot"
 .Ft void
-.Fn pmap_protect "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" \
-"vm_prot_t pr"
+.Fo pmap_protect
+.Fa "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" "vm_prot_t pr"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn pmap_page_protect

share/man/man9/pmap_zero_page.9

@@ -55,10 +55,10 @@ entirely within a single page.
 The
 .Fn pmap_zero_page_idle
 interface is used by the
-.Em vm_pagezero
+.Nm vm_pagezero
 process.
 The system-wide
-.Fa Giant
+.Va Giant
 lock should not be required to be held in order to call this interface.
 .Sh IMPLEMENTATION NOTES
 This function is required to be implemented for each architecture supported by