Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 353 insertions, 0 deletions

diff --git a/arch/mips/include/asm/asm.h b/arch/mips/include/asm/asm.h
new file mode 100644
index 000000000..336ac9b65
--- /dev/null
+++ b/arch/mips/include/asm/asm.h
@@ -0,0 +1,353 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 1997, 1999, 2001 by Ralf Baechle
+ * Copyright (C) 1999 by Silicon Graphics, Inc.
+ * Copyright (C) 2001 MIPS Technologies, Inc.
+ * Copyright (C) 2002  Maciej W. Rozycki
+ *
+ * Some useful macros for MIPS assembler code
+ *
+ * Some of the routines below contain useless nops that will be optimized
+ * away by gas in -O mode. These nops are however required to fill delay
+ * slots in noreorder mode.
+ */
+#ifndef __ASM_ASM_H
+#define __ASM_ASM_H
+
+#include <asm/sgidefs.h>
+#include <asm/asm-eva.h>
+#include <asm/isa-rev.h>
+
+#ifndef __VDSO__
+/*
+ * Emit CFI data in .debug_frame sections, not .eh_frame sections.
+ * We don't do DWARF unwinding at runtime, so only the offline DWARF
+ * information is useful to anyone. Note we should change this if we
+ * ever decide to enable DWARF unwinding at runtime.
+ */
+#define CFI_SECTIONS	.cfi_sections .debug_frame
+#else
+ /*
+  * For the vDSO, emit both runtime unwind information and debug
+  * symbols for the .dbg file.
+  */
+#define CFI_SECTIONS
+#endif
+
+/*
+ * LEAF - declare leaf routine
+ */
+#define LEAF(symbol)					\
+		CFI_SECTIONS;				\
+		.globl	symbol;				\
+		.align	2;				\
+		.type	symbol, @function;		\
+		.ent	symbol, 0;			\
+symbol:		.frame	sp, 0, ra;			\
+		.cfi_startproc;				\
+		.insn
+
+/*
+ * NESTED - declare nested routine entry point
+ */
+#define NESTED(symbol, framesize, rpc)			\
+		CFI_SECTIONS;				\
+		.globl	symbol;				\
+		.align	2;				\
+		.type	symbol, @function;		\
+		.ent	symbol, 0;			\
+symbol:		.frame	sp, framesize, rpc;		\
+		.cfi_startproc;				\
+		.insn
+
+/*
+ * END - mark end of function
+ */
+#define END(function)					\
+		.cfi_endproc;				\
+		.end	function;			\
+		.size	function, .-function
+
+/*
+ * EXPORT - export definition of symbol
+ */
+#define EXPORT(symbol)					\
+		.globl	symbol;				\
+symbol:
+
+/*
+ * FEXPORT - export definition of a function symbol
+ */
+#define FEXPORT(symbol)					\
+		.globl	symbol;				\
+		.type	symbol, @function;		\
+symbol:		.insn
+
+/*
+ * ABS - export absolute symbol
+ */
+#define ABS(symbol,value)				\
+		.globl	symbol;				\
+symbol		=	value
+
+#define TEXT(msg)					\
+		.pushsection .data;			\
+8:		.asciiz msg;				\
+		.popsection;
+
+#define ASM_PANIC(msg)					\
+		.set	push;				\
+		.set	reorder;			\
+		PTR_LA	a0, 8f;				\
+		jal	panic;				\
+9:		b	9b;				\
+		.set	pop;				\
+		TEXT(msg)
+
+/*
+ * Print formatted string
+ */
+#ifdef CONFIG_PRINTK
+#define ASM_PRINT(string)				\
+		.set	push;				\
+		.set	reorder;			\
+		PTR_LA	a0, 8f;				\
+		jal	_printk;			\
+		.set	pop;				\
+		TEXT(string)
+#else
+#define ASM_PRINT(string)
+#endif
+
+/*
+ * Stack alignment
+ */
+#if (_MIPS_SIM == _MIPS_SIM_ABI32)
+#define ALSZ	7
+#define ALMASK	~7
+#endif
+#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+#define ALSZ	15
+#define ALMASK	~15
+#endif
+
+/*
+ * Macros to handle different pointer/register sizes for 32/64-bit code
+ */
+
+/*
+ * Size of a register
+ */
+#ifdef __mips64
+#define SZREG	8
+#else
+#define SZREG	4
+#endif
+
+/*
+ * Use the following macros in assemblercode to load/store registers,
+ * pointers etc.
+ */
+#if (_MIPS_SIM == _MIPS_SIM_ABI32)
+#define REG_S		sw
+#define REG_L		lw
+#define REG_SUBU	subu
+#define REG_ADDU	addu
+#endif
+#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+#define REG_S		sd
+#define REG_L		ld
+#define REG_SUBU	dsubu
+#define REG_ADDU	daddu
+#endif
+
+/*
+ * How to add/sub/load/store/shift C int variables.
+ */
+#if (_MIPS_SZINT == 32)
+#define INT_ADD		add
+#define INT_ADDU	addu
+#define INT_ADDI	addi
+#define INT_ADDIU	addiu
+#define INT_SUB		sub
+#define INT_SUBU	subu
+#define INT_L		lw
+#define INT_S		sw
+#define INT_SLL		sll
+#define INT_SLLV	sllv
+#define INT_SRL		srl
+#define INT_SRLV	srlv
+#define INT_SRA		sra
+#define INT_SRAV	srav
+#endif
+
+#if (_MIPS_SZINT == 64)
+#define INT_ADD		dadd
+#define INT_ADDU	daddu
+#define INT_ADDI	daddi
+#define INT_ADDIU	daddiu
+#define INT_SUB		dsub
+#define INT_SUBU	dsubu
+#define INT_L		ld
+#define INT_S		sd
+#define INT_SLL		dsll
+#define INT_SLLV	dsllv
+#define INT_SRL		dsrl
+#define INT_SRLV	dsrlv
+#define INT_SRA		dsra
+#define INT_SRAV	dsrav
+#endif
+
+/*
+ * How to add/sub/load/store/shift C long variables.
+ */
+#if (_MIPS_SZLONG == 32)
+#define LONG_ADD	add
+#define LONG_ADDU	addu
+#define LONG_ADDI	addi
+#define LONG_ADDIU	addiu
+#define LONG_SUB	sub
+#define LONG_SUBU	subu
+#define LONG_L		lw
+#define LONG_LL		ll
+#define LONG_SC		sc
+#define LONG_S		sw
+#define LONG_SP		swp
+#define LONG_SLL	sll
+#define LONG_SLLV	sllv
+#define LONG_SRL	srl
+#define LONG_SRLV	srlv
+#define LONG_SRA	sra
+#define LONG_SRAV	srav
+#define LONG_INS	ins
+#define LONG_EXT	ext
+
+#ifdef __ASSEMBLY__
+#define LONG		.word
+#endif
+#define LONGSIZE	4
+#define LONGMASK	3
+#define LONGLOG		2
+#endif
+
+#if (_MIPS_SZLONG == 64)
+#define LONG_ADD	dadd
+#define LONG_ADDU	daddu
+#define LONG_ADDI	daddi
+#define LONG_ADDIU	daddiu
+#define LONG_SUB	dsub
+#define LONG_SUBU	dsubu
+#define LONG_L		ld
+#define LONG_LL		lld
+#define LONG_SC		scd
+#define LONG_S		sd
+#define LONG_SP		sdp
+#define LONG_SLL	dsll
+#define LONG_SLLV	dsllv
+#define LONG_SRL	dsrl
+#define LONG_SRLV	dsrlv
+#define LONG_SRA	dsra
+#define LONG_SRAV	dsrav
+#define LONG_INS	dins
+#define LONG_EXT	dext
+
+#ifdef __ASSEMBLY__
+#define LONG		.dword
+#endif
+#define LONGSIZE	8
+#define LONGMASK	7
+#define LONGLOG		3
+#endif
+
+/*
+ * How to add/sub/load/store/shift pointers.
+ */
+#if (_MIPS_SZPTR == 32)
+#define PTR_ADD		add
+#define PTR_ADDU	addu
+#define PTR_ADDI	addi
+#define PTR_ADDIU	addiu
+#define PTR_SUB		sub
+#define PTR_SUBU	subu
+#define PTR_L		lw
+#define PTR_S		sw
+#define PTR_LA		la
+#define PTR_LI		li
+#define PTR_SLL		sll
+#define PTR_SLLV	sllv
+#define PTR_SRL		srl
+#define PTR_SRLV	srlv
+#define PTR_SRA		sra
+#define PTR_SRAV	srav
+
+#define PTR_SCALESHIFT	2
+
+#define PTR_WD		.word
+#define PTRSIZE		4
+#define PTRLOG		2
+#endif
+
+#if (_MIPS_SZPTR == 64)
+#define PTR_ADD		dadd
+#define PTR_ADDU	daddu
+#define PTR_ADDI	daddi
+#define PTR_ADDIU	daddiu
+#define PTR_SUB		dsub
+#define PTR_SUBU	dsubu
+#define PTR_L		ld
+#define PTR_S		sd
+#define PTR_LA		dla
+#define PTR_LI		dli
+#define PTR_SLL		dsll
+#define PTR_SLLV	dsllv
+#define PTR_SRL		dsrl
+#define PTR_SRLV	dsrlv
+#define PTR_SRA		dsra
+#define PTR_SRAV	dsrav
+
+#define PTR_SCALESHIFT	3
+
+#define PTR_WD		.dword
+#define PTRSIZE		8
+#define PTRLOG		3
+#endif
+
+/*
+ * Some cp0 registers were extended to 64bit for MIPS III.
+ */
+#if (_MIPS_SIM == _MIPS_SIM_ABI32)
+#define MFC0		mfc0
+#define MTC0		mtc0
+#endif
+#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+#define MFC0		dmfc0
+#define MTC0		dmtc0
+#endif
+
+#define SSNOP		sll zero, zero, 1
+
+/*
+ * Using a branch-likely instruction to check the result of an sc instruction
+ * works around a bug present in R10000 CPUs prior to revision 3.0 that could
+ * cause ll-sc sequences to execute non-atomically.
+ */
+#ifdef CONFIG_WAR_R10000_LLSC
+# define SC_BEQZ	beqzl
+#elif MIPS_ISA_REV >= 6
+# define SC_BEQZ	beqzc
+#else
+# define SC_BEQZ	beqz
+#endif
+
+#ifdef CONFIG_SGI_IP28
+/* Inhibit speculative stores to volatile (e.g.DMA) or invalid addresses. */
+#include <asm/cacheops.h>
+#define R10KCBARRIER(addr)  cache   Cache_Barrier, addr;
+#else
+#define R10KCBARRIER(addr)
+#endif
+
+#endif /* __ASM_ASM_H */