[src/riastradh-drm2]: src/sys/external/bsd/drm2/include/asm Partially impleme...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/32c38afaccda
branches:  riastradh-drm2
changeset: 788063:32c38afaccda
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Wed Jul 24 02:03:46 2013 +0000

description:
Partially implement Linux <asm/mtrr.h>.

diffstat:

 sys/external/bsd/drm2/include/asm/mtrr.h |  49 +++++++++++++++++++++++++++++++-
 1 files changed, 48 insertions(+), 1 deletions(-)

diffs (61 lines):

diff -r 516a1538119b -r 32c38afaccda sys/external/bsd/drm2/include/asm/mtrr.h
--- a/sys/external/bsd/drm2/include/asm/mtrr.h  Wed Jul 24 02:03:32 2013 +0000
+++ b/sys/external/bsd/drm2/include/asm/mtrr.h  Wed Jul 24 02:03:46 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: mtrr.h,v 1.1.2.1 2013/07/24 00:33:11 riastradh Exp $   */
+/*     $NetBSD: mtrr.h,v 1.1.2.2 2013/07/24 02:03:46 riastradh Exp $   */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -32,4 +32,51 @@
 #ifndef _ASM_MTRR_H_
 #define _ASM_MTRR_H_
 
+#ifdef _KERNEL_OPT
+#include "opt_mtrr.h"
+#endif
+
+#include <machine/mtrr.h>
+
+#define        MTRR_TYPE_WRCOMB        MTRR_TYPE_WC
+
+static inline int
+mtrr_add(unsigned long base, unsigned long size, int type,
+    bool increment __unused)
+{
+#ifdef MTRR
+       struct mtrr mtrr;
+       int n = 1;
+
+       mtrr.base = base;
+       mtrr.len = size;
+       mtrr.type = type;
+       mtrr.flags = MTRR_VALID;
+
+       /* XXX errno NetBSD->Linux */
+       return -mtrr_set(&mtrr, &n, NULL, MTRR_GETSET_KERNEL);
+#else
+       return 0;
+#endif
+}
+
+static inline int
+mtrr_del(int handle __unused, unsigned long base, unsigned long size)
+{
+#ifdef MTRR
+       struct mtrr mtrr;
+       int n = 1;
+
+       mtrr.base = base;
+       mtrr.len = size;
+       mtrr.type = 0;
+       mtrr.flags = 0;         /* not MTRR_VALID */
+
+       /* XXX errno NetBSD->Linux */
+       return -mtrr_set(&mtrr, &n, NULL, MTRR_GETSET_KERNEL);
+#else
+       return 0;
+#endif
+}
+
 #endif  /* _ASM_MTRR_H_ */