git: e19bdeccc89a - stable/13 - Split out pmap_map_delete on arm64

The branch stable/13 has been updated by andrew:

URL: https://cgit.FreeBSD.org/src/commit/?id=e19bdeccc89a76727ddb56c9c2dbfc66daf9003a

commit e19bdeccc89a76727ddb56c9c2dbfc66daf9003a
Author:     Andrew Turner <andrew@FreeBSD.org>
AuthorDate: 2023-04-28 10:54:19 +0000
Commit:     Andrew Turner <andrew@FreeBSD.org>
CommitDate: 2023-09-25 08:41:16 +0000

    Split out pmap_map_delete on arm64
    
    This will be used when supporting some extensions, e.g. Branch Target
    Identification (BTI).
    
    Sponsored by:   Arm Ltd
    
    (cherry picked from commit 020edaea2ab05c9cea7d83872f28a4e5e65407e2)
---
 sys/arm64/arm64/pmap.c   | 12 ++++++++++++
 sys/arm64/include/pmap.h |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c
index edd34bcd5e68..037f1d5a805f 100644
--- a/sys/arm64/arm64/pmap.c
+++ b/sys/arm64/arm64/pmap.c
@@ -3294,6 +3294,18 @@ pmap_remove(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
 	vm_page_free_pages_toq(&free, true);
 }
 
+/*
+ *	Remove the given range of addresses as part of a logical unmap
+ *	operation. This has the effect of calling pmap_remove(), but
+ *	also clears any metadata that should persist for the lifetime
+ *	of a logical mapping.
+ */
+void
+pmap_map_delete(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
+{
+	pmap_remove(pmap, sva, eva);
+}
+
 /*
  *	Routine:	pmap_remove_all
  *	Function:
diff --git a/sys/arm64/include/pmap.h b/sys/arm64/include/pmap.h
index 95e43eada9cc..7305b8d32e87 100644
--- a/sys/arm64/include/pmap.h
+++ b/sys/arm64/include/pmap.h
@@ -177,7 +177,7 @@ int	pmap_pinit_stage(pmap_t, enum pmap_stage, int);
 bool	pmap_ps_enabled(pmap_t pmap);
 uint64_t pmap_to_ttbr0(pmap_t pmap);
 void	pmap_disable_promotion(vm_offset_t sva, vm_size_t size);
-#define	pmap_map_delete(pmap, sva, eva)	pmap_remove(pmap, sva, eva)
+void	pmap_map_delete(pmap_t, vm_offset_t, vm_offset_t);
 
 void	*pmap_mapdev(vm_offset_t, vm_size_t);
 void	*pmap_mapbios(vm_paddr_t, vm_size_t);