[src/trunk]: src/sys/arch/i386/include MTRR include file, based on the one by...

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

details:   https://anonhg.NetBSD.org/src/rev/c2ea3d35d15a
branches:  trunk
changeset: 514761:c2ea3d35d15a
user:      fvdl <fvdl%NetBSD.org@localhost>
date:      Mon Sep 10 10:10:33 2001 +0000

description:
MTRR include file, based on the one by Bill Sommerfeld from the i386 mp
branch.

diffstat:

 sys/arch/i386/include/mtrr.h |  143 +++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 143 insertions(+), 0 deletions(-)

diffs (147 lines):

diff -r acb9796831b7 -r c2ea3d35d15a sys/arch/i386/include/mtrr.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/include/mtrr.h      Mon Sep 10 10:10:33 2001 +0000
@@ -0,0 +1,143 @@
+/* $NetBSD: mtrr.h,v 1.2 2001/09/10 10:10:33 fvdl Exp $ */
+
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Bill Sommerfeld
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _I386_MTRR_H_
+#define _I386_MTRR_H_
+
+#define MTRR_I686_FIXED_IDX64K 0
+#define MTRR_I686_FIXED_IDX16K 1
+#define MTRR_I686_FIXED_IDX4K  3
+
+#define MTRR_I686_NVAR         8
+
+#define MTRR_I686_64K_START            0x00000
+#define MTRR_I686_16K_START            0x80000
+#define MTRR_I686_4K_START             0xc0000
+
+#define MTRR_I686_NFIXED_64K           1
+#define MTRR_I686_NFIXED_16K           2
+#define MTRR_I686_NFIXED_4K            8
+#define MTRR_I686_NFIXED               11
+#define MTRR_I686_NFIXED_SOFT_64K      (MTRR_I686_NFIXED_64K * 8)
+#define MTRR_I686_NFIXED_SOFT_16K      (MTRR_I686_NFIXED_16K * 8)
+#define MTRR_I686_NFIXED_SOFT_4K       (MTRR_I686_NFIXED_4K * 8)
+#define MTRR_I686_NFIXED_SOFT          (MTRR_I686_NFIXED * 8)
+
+#define MTRR_I686_ENABLE_MASK  0x0800
+#define MTRR_I686_FIXED_ENABLE_MASK    0x0400
+
+#define MTRR_I686_CAP_VCNT_MASK        0x00ff
+#define MTRR_I686_CAP_FIX_MASK 0x0100
+#define MTRR_I686_CAP_WC_MASK  0x0400
+
+#define MTRR_TYPE_UC           0
+#define MTRR_TYPE_WC           1
+#define MTRR_TYPE_UNDEF1       2
+#define MTRR_TYPE_UNDEF2       3
+#define MTRR_TYPE_WT           4
+#define MTRR_TYPE_WP           5
+#define MTRR_TYPE_WB           6
+
+struct mtrr_state {
+       uint32_t msraddr;
+       uint64_t msrval;
+};
+       
+#define MTRR_PRIVATE   0x0001          /* 'own' range, reset at exit */
+#define MTRR_FIXED     0x0002          /* use fixed range mtrr */
+#define MTRR_VALID     0x0004          /* entry is valid */
+
+#define MTRR_CANTSET   MTRR_FIXED
+
+#define MTRR_I686_MASK_VALID   (1 << 11)
+
+
+#ifdef _KERNEL
+
+#define mtrr_base_value(mtrrp) \
+    (((uint64_t)(mtrrp)->base) | ((uint64_t)(mtrrp)->type))
+#define mtrr_mask_value(mtrrp) \
+    ((~((mtrrp)->len - 1) & 0x0000000ffffff000))
+       
+
+#define mtrr_len(val) \
+    ((~((val) & 0x0000000ffffff000)+1) & 0x0000000ffffff000)
+#define mtrr_base(val)         ((val) & 0x0000000ffffff000)
+#define mtrr_type(val)         ((uint8_t)((val) & 0x00000000000000ff))
+#define mtrr_valid(val)                (((val) & MTRR_I686_MASK_VALID) != 0)
+
+struct proc;
+struct mtrr;
+
+void i686_mtrr_init_first(void);
+
+struct mtrr_funcs {
+       void (*init_cpu)(struct cpu_info *ci);
+       void (*reload_cpu)(struct cpu_info *ci);
+       void (*clean)(struct proc *p);
+       int (*set)(struct mtrr *, int *n, struct proc *p, int flags);
+       int (*get)(struct mtrr *, int *n, struct proc *p, int flags);
+       void (*commit)(void);
+       void (*dump)(const char *tag);
+};
+
+extern struct mtrr_funcs i686_mtrr_funcs;
+extern struct mtrr_funcs *mtrr_funcs;
+
+#define mtrr_init_cpu(ci)      mtrr_funcs->init_cpu(ci)
+#define mtrr_reload_cpu(ci)    mtrr_funcs->reload_cpu(ci)
+#define mtrr_clean(p)          mtrr_funcs->clean(p)
+#define mtrr_set(mp,n,p,f)     mtrr_funcs->set(mp,n,p,f)
+#define mtrr_get(mp,n,p,f)     mtrr_funcs->get(mp,n,p,f)
+#define mtrr_dump(s)           mtrr_funcs->dump(s)
+#define mtrr_commit()          mtrr_funcs->commit()
+
+#define MTRR_GETSET_USER       0x0001
+#define MTRR_GETSET_KERNEL     0x0002
+
+#endif /* _KERNEL */
+
+struct mtrr {
+       uint64_t base;          /* physical base address */
+       uint64_t len;
+       uint8_t type;
+       int flags;
+       pid_t owner;            /* valid if MTRR_PRIVATE set in flags */
+};
+
+#endif /* _I386_MTRR_H_ */