patch-2.4.22 linux-2.4.22/include/asm-mips64/sibyte/sb1250_defs.h
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- Lines: 230
- Date:
2003-08-25 04:44:44.000000000 -0700
- Orig file:
linux-2.4.21/include/asm-mips64/sibyte/sb1250_defs.h
- Orig date:
2002-11-28 15:53:15.000000000 -0800
diff -urN linux-2.4.21/include/asm-mips64/sibyte/sb1250_defs.h linux-2.4.22/include/asm-mips64/sibyte/sb1250_defs.h
@@ -1,23 +1,23 @@
/* *********************************************************************
* SB1250 Board Support Package
- *
- * Global constants and macros File: sb1250_defs.h
- *
+ *
+ * Global constants and macros File: sb1250_defs.h
+ *
* This file contains macros and definitions used by the other
* include files.
*
* SB1250 specification level: User's manual 1/02/02
+ *
+ * Author: Mitch Lichtenberg
+ *
+ *********************************************************************
*
- * Author: Mitch Lichtenberg (mpl@broadcom.com)
- *
- *********************************************************************
- *
- * Copyright 2000,2001
+ * Copyright 2000,2001,2002,2003
* Broadcom Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
@@ -27,38 +27,154 @@
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
********************************************************************* */
+#ifndef _SB1250_DEFS_H
+#define _SB1250_DEFS_H
+
+/*
+ * These headers require ANSI C89 string concatenation, and GCC or other
+ * 'long long' (64-bit integer) support.
+ */
+#if !defined(__STDC__) && !defined(_MSC_VER)
+#error SiByte headers require ANSI C89 support
+#endif
+
/* *********************************************************************
- * Naming schemes for constants in these files:
+ * Macros for feature tests, used to enable include file features
+ * for chip features only present in certain chip revisions.
+ *
+ * SIBYTE_HDR_FEATURES may be defined to be the mask value chip/revision
+ * which is to be exposed by the headers. If undefined, it defaults to
+ * "all features."
+ *
+ * Use like:
+ *
+ * #define SIBYTE_HDR_FEATURES SIBYTE_HDR_FMASK_112x_PASS1
+ *
+ * Generate defines only for that revision of chip.
+ *
+ * #if SIBYTE_HDR_FEATURE(chip,pass)
+ *
+ * True if header features for that revision or later of
+ * that particular chip type are enabled in SIBYTE_HDR_FEATURES.
+ * (Use this to bracket #defines for features present in a given
+ * revision and later.)
+ *
+ * Note that there is no implied ordering between chip types.
+ *
+ * Note also that 'chip' and 'pass' must textually exactly
+ * match the defines below. So, for example,
+ * SIBYTE_HDR_FEATURE(112x, PASS1) is OK, but
+ * SIBYTE_HDR_FEATURE(1120, pass1) is not (for two reasons).
*
- * M_xxx MASK constant (identifies bits in a register).
+ * #if SIBYTE_HDR_FEATURE_UP_TO(chip,pass)
+ *
+ * Same as SIBYTE_HDR_FEATURE, but true for the named revision
+ * and earlier revisions of the named chip type.
+ *
+ * #if SIBYTE_HDR_FEATURE_EXACT(chip,pass)
+ *
+ * Same as SIBYTE_HDR_FEATURE, but only true for the named
+ * revision of the named chip type. (Note that this CANNOT
+ * be used to verify that you're compiling only for that
+ * particular chip/revision. It will be true any time this
+ * chip/revision is included in SIBYTE_HDR_FEATURES.)
+ *
+ * #if SIBYTE_HDR_FEATURE_CHIP(chip)
+ *
+ * True if header features for (any revision of) that chip type
+ * are enabled in SIBYTE_HDR_FEATURES. (Use this to bracket
+ * #defines for features specific to a given chip type.)
+ *
+ * Mask values currently include room for additional revisions of each
+ * chip type, but can be renumbered at will. Note that they MUST fit
+ * into 31 bits and may not include C type constructs, for safe use in
+ * CPP conditionals. Bit positions within chip types DO indicate
+ * ordering, so be careful when adding support for new minor revs.
+ ********************************************************************* */
+
+#define SIBYTE_HDR_FMASK_1250_ALL 0x00000ff
+#define SIBYTE_HDR_FMASK_1250_PASS1 0x0000001
+#define SIBYTE_HDR_FMASK_1250_PASS2 0x0000002
+#define SIBYTE_HDR_FMASK_1250_PASS3 0x0000004
+
+#define SIBYTE_HDR_FMASK_112x_ALL 0x0000f00
+#define SIBYTE_HDR_FMASK_112x_PASS1 0x0000100
+
+/* Bit mask for chip/revision. (use _ALL for all revisions of a chip). */
+#define SIBYTE_HDR_FMASK(chip, pass) \
+ (SIBYTE_HDR_FMASK_ ## chip ## _ ## pass)
+#define SIBYTE_HDR_FMASK_ALLREVS(chip) \
+ (SIBYTE_HDR_FMASK_ ## chip ## _ALL)
+
+#define SIBYTE_HDR_FMASK_ALL \
+ (SIBYTE_HDR_FMASK_1250_ALL | SIBYTE_HDR_FMASK_112x_ALL)
+
+#ifndef SIBYTE_HDR_FEATURES
+#define SIBYTE_HDR_FEATURES SIBYTE_HDR_FMASK_ALL
+#endif
+
+
+/* Bit mask for revisions of chip exclusively before the named revision. */
+#define SIBYTE_HDR_FMASK_BEFORE(chip, pass) \
+ ((SIBYTE_HDR_FMASK(chip, pass) - 1) & SIBYTE_HDR_FMASK_ALLREVS(chip))
+
+/* Bit mask for revisions of chip exclusively after the named revision. */
+#define SIBYTE_HDR_FMASK_AFTER(chip, pass) \
+ (~(SIBYTE_HDR_FMASK(chip, pass) \
+ | (SIBYTE_HDR_FMASK(chip, pass) - 1)) & SIBYTE_HDR_FMASK_ALLREVS(chip))
+
+
+/* True if header features enabled for (any revision of) that chip type. */
+#define SIBYTE_HDR_FEATURE_CHIP(chip) \
+ (!! (SIBYTE_HDR_FMASK_ALLREVS(chip) & SIBYTE_HDR_FEATURES))
+
+/* True if header features enabled for that rev or later, inclusive. */
+#define SIBYTE_HDR_FEATURE(chip, pass) \
+ (!! ((SIBYTE_HDR_FMASK(chip, pass) \
+ | SIBYTE_HDR_FMASK_AFTER(chip, pass)) & SIBYTE_HDR_FEATURES))
+
+/* True if header features enabled for exactly that rev. */
+#define SIBYTE_HDR_FEATURE_EXACT(chip, pass) \
+ (!! (SIBYTE_HDR_FMASK(chip, pass) & SIBYTE_HDR_FEATURES))
+
+/* True if header features enabled for that rev or before, inclusive. */
+#define SIBYTE_HDR_FEATURE_UP_TO(chip, pass) \
+ (!! ((SIBYTE_HDR_FMASK(chip, pass) \
+ | SIBYTE_HDR_FMASK_BEFORE(chip, pass)) & SIBYTE_HDR_FEATURES))
+
+
+/* *********************************************************************
+ * Naming schemes for constants in these files:
+ *
+ * M_xxx MASK constant (identifies bits in a register).
* For multi-bit fields, all bits in the field will
* be set.
*
* K_xxx "Code" constant (value for data in a multi-bit
* field). The value is right justified.
*
- * V_xxx "Value" constant. This is the same as the
+ * V_xxx "Value" constant. This is the same as the
* corresponding "K_xxx" constant, except it is
* shifted to the correct position in the register.
*
* S_xxx SHIFT constant. This is the number of bits that
- * a field value (code) needs to be shifted
+ * a field value (code) needs to be shifted
* (towards the left) to put the value in the right
* position for the register.
*
- * A_xxx ADDRESS constant. This will be a physical
+ * A_xxx ADDRESS constant. This will be a physical
* address. Use the PHYS_TO_K1 macro to generate
* a K1SEG address.
*
* R_xxx RELATIVE offset constant. This is an offset from
* an A_xxx constant (usually the first register in
* a group).
- *
+ *
* G_xxx(X) GET value. This macro obtains a multi-bit field
* from a register, masks it, and shifts it to
* the bottom of the register (retrieving a K_xxx
@@ -72,17 +188,14 @@
-#ifndef _SB1250_DEFS_H
-#define _SB1250_DEFS_H
-
/*
- * Cast to 64-bit number. Presumably the syntax is different in
+ * Cast to 64-bit number. Presumably the syntax is different in
* assembly language.
*
* Note: you'll need to define uint32_t and uint64_t in your headers.
*/
-#if !defined(__ASSEMBLY__)
+#if !defined(__ASSEMBLER__)
#define _SB_MAKE64(x) ((uint64_t)(x))
#define _SB_MAKE32(x) ((uint32_t)(x))
#else
@@ -121,9 +234,9 @@
*/
-#if !defined(__ASSEMBLY__)
+#if defined(__mips64) && !defined(__ASSEMBLER__)
#define SBWRITECSR(csr,val) *((volatile uint64_t *) PHYS_TO_K1(csr)) = (val)
#define SBREADCSR(csr) (*((volatile uint64_t *) PHYS_TO_K1(csr)))
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
#endif
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