git: ad97b9bbfccd - main - amd64 pmap.h: make it easier to use the header for other consumers
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Date: Thu, 05 Jan 2023 23:31:37 UTC
The branch main has been updated by kib:
URL: https://cgit.FreeBSD.org/src/commit/?id=ad97b9bbfccdb36f17788033903b1dbf508fcb96
commit ad97b9bbfccdb36f17788033903b1dbf508fcb96
Author: Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2023-01-04 10:31:16 +0000
Commit: Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2023-01-05 23:30:29 +0000
amd64 pmap.h: make it easier to use the header for other consumers
Guard pmap_invlpg() definition with checks that only provide it when
both sys/pcpu.h and machine/cpufunc.h were already included.
Requested by: Elliott Mitchell
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
---
sys/amd64/include/pmap.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sys/amd64/include/pmap.h b/sys/amd64/include/pmap.h
index e7497c2f8b4b..a7e456d80fcf 100644
--- a/sys/amd64/include/pmap.h
+++ b/sys/amd64/include/pmap.h
@@ -516,6 +516,7 @@ pmap_invalidate_cpu_mask(pmap_t pmap)
return (&pmap->pm_active);
}
+#if defined(_SYS_PCPU_H_) && defined(_MACHINE_CPUFUNC_H_)
/*
* It seems that AlderLake+ small cores have some microarchitectural
* bug, which results in the INVLPG instruction failing to flush all
@@ -533,6 +534,7 @@ pmap_invlpg(pmap_t pmap, vm_offset_t va)
invlpg(va);
}
}
+#endif /* sys/pcpu.h && machine/cpufunc.h */
#endif /* _KERNEL */