mirror of
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73a4152b25
In commit a18a477 (MIPS: use common code from lib/time.c) MIPS platforms started using common the common timer functions which are based around the fact that many platforms have a 32-bit free running counter register that can be used see commit 8dfafdd (Introduce common timer functions). Even MIPS64 has such a 32-bit register (some have an additional 64-bit free running counter, but that's something for another time). The problem is that in __read_32bit_c0_register() we read the value from this register into an _signed_ int and as it's returned up the call chain to timer_read_counter() it gets assigned to an unsigned long. On a 32-bit system there is no problem. On a 64-bit system odd things happen, sign extension seems to kick in and all of a sudden if the counter register happens to have the MSb (i.e. the sign bit) set the negative int gets sign extended into a very large unsigned long value. This in turn throws out things from get_ticks() up. Update __read_32bit_c0_register() and __read_32bit_c0_ctrl_register() to use "unsigned int res;" instead of "int res;". There seems to be little reason to treat these register values as signed. They are either counters (which by definition are unsigned) or are made up of various bit fields to be interpreted as per the CPU datasheet. Reported-by: Sachin Surendran <sachin.surendran@alliedtelesis.co.nz> Signed-off-by: Chris Packham <judge.packham@gmail.com>
1371 lines
38 KiB
C
1371 lines
38 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
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* Copyright (C) 2000 Silicon Graphics, Inc.
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* Modified for further R[236]000 support by Paul M. Antoine, 1996.
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* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
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* Copyright (C) 2000, 07 MIPS Technologies, Inc.
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* Copyright (C) 2003, 2004 Maciej W. Rozycki
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*/
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#ifndef _ASM_MIPSREGS_H
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#define _ASM_MIPSREGS_H
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#if 0
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#include <linux/linkage.h>
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#endif
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/*
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* The following macros are especially useful for __asm__
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* inline assembler.
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*/
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#ifndef __STR
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#define __STR(x) #x
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#endif
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#ifndef STR
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#define STR(x) __STR(x)
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#endif
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/*
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* Configure language
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*/
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#ifdef __ASSEMBLY__
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#define _ULCAST_
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#else
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#define _ULCAST_ (unsigned long)
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#endif
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/*
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* Coprocessor 0 register names
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*/
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#define CP0_INDEX $0
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#define CP0_RANDOM $1
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#define CP0_ENTRYLO0 $2
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#define CP0_ENTRYLO1 $3
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#define CP0_CONF $3
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#define CP0_CONTEXT $4
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#define CP0_PAGEMASK $5
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#define CP0_WIRED $6
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#define CP0_INFO $7
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#define CP0_BADVADDR $8
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#define CP0_COUNT $9
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#define CP0_ENTRYHI $10
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#define CP0_COMPARE $11
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#define CP0_STATUS $12
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#define CP0_CAUSE $13
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#define CP0_EPC $14
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#define CP0_PRID $15
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#define CP0_CONFIG $16
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#define CP0_LLADDR $17
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#define CP0_WATCHLO $18
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#define CP0_WATCHHI $19
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#define CP0_XCONTEXT $20
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#define CP0_FRAMEMASK $21
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#define CP0_DIAGNOSTIC $22
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#define CP0_DEBUG $23
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#define CP0_DEPC $24
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#define CP0_PERFORMANCE $25
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#define CP0_ECC $26
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#define CP0_CACHEERR $27
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#define CP0_TAGLO $28
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#define CP0_TAGHI $29
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#define CP0_ERROREPC $30
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#define CP0_DESAVE $31
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/*
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* R4640/R4650 cp0 register names. These registers are listed
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* here only for completeness; without MMU these CPUs are not useable
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* by Linux. A future ELKS port might take make Linux run on them
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* though ...
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*/
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#define CP0_IBASE $0
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#define CP0_IBOUND $1
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#define CP0_DBASE $2
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#define CP0_DBOUND $3
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#define CP0_CALG $17
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#define CP0_IWATCH $18
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#define CP0_DWATCH $19
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/*
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* Coprocessor 0 Set 1 register names
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*/
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#define CP0_S1_DERRADDR0 $26
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#define CP0_S1_DERRADDR1 $27
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#define CP0_S1_INTCONTROL $20
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/*
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* Coprocessor 0 Set 2 register names
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*/
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#define CP0_S2_SRSCTL $12 /* MIPSR2 */
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/*
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* Coprocessor 0 Set 3 register names
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*/
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#define CP0_S3_SRSMAP $12 /* MIPSR2 */
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/*
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* TX39 Series
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*/
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#define CP0_TX39_CACHE $7
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/*
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* Coprocessor 1 (FPU) register names
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*/
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#define CP1_REVISION $0
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#define CP1_STATUS $31
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/*
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* FPU Status Register Values
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*/
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/*
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* Status Register Values
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*/
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#define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */
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#define FPU_CSR_COND 0x00800000 /* $fcc0 */
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#define FPU_CSR_COND0 0x00800000 /* $fcc0 */
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#define FPU_CSR_COND1 0x02000000 /* $fcc1 */
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#define FPU_CSR_COND2 0x04000000 /* $fcc2 */
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#define FPU_CSR_COND3 0x08000000 /* $fcc3 */
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#define FPU_CSR_COND4 0x10000000 /* $fcc4 */
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#define FPU_CSR_COND5 0x20000000 /* $fcc5 */
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#define FPU_CSR_COND6 0x40000000 /* $fcc6 */
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#define FPU_CSR_COND7 0x80000000 /* $fcc7 */
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/*
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* X the exception cause indicator
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* E the exception enable
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* S the sticky/flag bit
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*/
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#define FPU_CSR_ALL_X 0x0003f000
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#define FPU_CSR_UNI_X 0x00020000
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#define FPU_CSR_INV_X 0x00010000
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#define FPU_CSR_DIV_X 0x00008000
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#define FPU_CSR_OVF_X 0x00004000
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#define FPU_CSR_UDF_X 0x00002000
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#define FPU_CSR_INE_X 0x00001000
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#define FPU_CSR_ALL_E 0x00000f80
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#define FPU_CSR_INV_E 0x00000800
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#define FPU_CSR_DIV_E 0x00000400
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#define FPU_CSR_OVF_E 0x00000200
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#define FPU_CSR_UDF_E 0x00000100
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#define FPU_CSR_INE_E 0x00000080
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#define FPU_CSR_ALL_S 0x0000007c
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#define FPU_CSR_INV_S 0x00000040
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#define FPU_CSR_DIV_S 0x00000020
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#define FPU_CSR_OVF_S 0x00000010
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#define FPU_CSR_UDF_S 0x00000008
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#define FPU_CSR_INE_S 0x00000004
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/* rounding mode */
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#define FPU_CSR_RN 0x0 /* nearest */
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#define FPU_CSR_RZ 0x1 /* towards zero */
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#define FPU_CSR_RU 0x2 /* towards +Infinity */
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#define FPU_CSR_RD 0x3 /* towards -Infinity */
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/*
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* Values for PageMask register
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*/
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#ifdef CONFIG_CPU_VR41XX
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/* Why doesn't stupidity hurt ... */
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#define PM_1K 0x00000000
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#define PM_4K 0x00001800
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#define PM_16K 0x00007800
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#define PM_64K 0x0001f800
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#define PM_256K 0x0007f800
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#else
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#define PM_4K 0x00000000
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#define PM_16K 0x00006000
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#define PM_64K 0x0001e000
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#define PM_256K 0x0007e000
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#define PM_1M 0x001fe000
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#define PM_4M 0x007fe000
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#define PM_16M 0x01ffe000
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#define PM_64M 0x07ffe000
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#define PM_256M 0x1fffe000
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#endif
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/*
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* Values used for computation of new tlb entries
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*/
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#define PL_4K 12
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#define PL_16K 14
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#define PL_64K 16
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#define PL_256K 18
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#define PL_1M 20
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#define PL_4M 22
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#define PL_16M 24
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#define PL_64M 26
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#define PL_256M 28
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/*
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* R4x00 interrupt enable / cause bits
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*/
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#define IE_SW0 (_ULCAST_(1) << 8)
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#define IE_SW1 (_ULCAST_(1) << 9)
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#define IE_IRQ0 (_ULCAST_(1) << 10)
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#define IE_IRQ1 (_ULCAST_(1) << 11)
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#define IE_IRQ2 (_ULCAST_(1) << 12)
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#define IE_IRQ3 (_ULCAST_(1) << 13)
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#define IE_IRQ4 (_ULCAST_(1) << 14)
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#define IE_IRQ5 (_ULCAST_(1) << 15)
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/*
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* R4x00 interrupt cause bits
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*/
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#define C_SW0 (_ULCAST_(1) << 8)
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#define C_SW1 (_ULCAST_(1) << 9)
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#define C_IRQ0 (_ULCAST_(1) << 10)
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#define C_IRQ1 (_ULCAST_(1) << 11)
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#define C_IRQ2 (_ULCAST_(1) << 12)
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#define C_IRQ3 (_ULCAST_(1) << 13)
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#define C_IRQ4 (_ULCAST_(1) << 14)
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#define C_IRQ5 (_ULCAST_(1) << 15)
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/*
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* Bitfields in the R4xx0 cp0 status register
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*/
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#define ST0_IE 0x00000001
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#define ST0_EXL 0x00000002
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#define ST0_ERL 0x00000004
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#define ST0_KSU 0x00000018
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# define KSU_USER 0x00000010
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# define KSU_SUPERVISOR 0x00000008
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# define KSU_KERNEL 0x00000000
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#define ST0_UX 0x00000020
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#define ST0_SX 0x00000040
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#define ST0_KX 0x00000080
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#define ST0_DE 0x00010000
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#define ST0_CE 0x00020000
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/*
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* Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
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* cacheops in userspace. This bit exists only on RM7000 and RM9000
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* processors.
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*/
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#define ST0_CO 0x08000000
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/*
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* Bitfields in the R[23]000 cp0 status register.
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*/
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#define ST0_IEC 0x00000001
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#define ST0_KUC 0x00000002
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#define ST0_IEP 0x00000004
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#define ST0_KUP 0x00000008
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#define ST0_IEO 0x00000010
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#define ST0_KUO 0x00000020
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/* bits 6 & 7 are reserved on R[23]000 */
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#define ST0_ISC 0x00010000
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#define ST0_SWC 0x00020000
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#define ST0_CM 0x00080000
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/*
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* Bits specific to the R4640/R4650
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*/
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#define ST0_UM (_ULCAST_(1) << 4)
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#define ST0_IL (_ULCAST_(1) << 23)
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#define ST0_DL (_ULCAST_(1) << 24)
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/*
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* Enable the MIPS MDMX and DSP ASEs
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*/
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#define ST0_MX 0x01000000
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/*
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* Bitfields in the TX39 family CP0 Configuration Register 3
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*/
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#define TX39_CONF_ICS_SHIFT 19
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#define TX39_CONF_ICS_MASK 0x00380000
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#define TX39_CONF_ICS_1KB 0x00000000
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#define TX39_CONF_ICS_2KB 0x00080000
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#define TX39_CONF_ICS_4KB 0x00100000
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#define TX39_CONF_ICS_8KB 0x00180000
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#define TX39_CONF_ICS_16KB 0x00200000
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#define TX39_CONF_DCS_SHIFT 16
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#define TX39_CONF_DCS_MASK 0x00070000
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#define TX39_CONF_DCS_1KB 0x00000000
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#define TX39_CONF_DCS_2KB 0x00010000
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#define TX39_CONF_DCS_4KB 0x00020000
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#define TX39_CONF_DCS_8KB 0x00030000
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#define TX39_CONF_DCS_16KB 0x00040000
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#define TX39_CONF_CWFON 0x00004000
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#define TX39_CONF_WBON 0x00002000
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#define TX39_CONF_RF_SHIFT 10
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#define TX39_CONF_RF_MASK 0x00000c00
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#define TX39_CONF_DOZE 0x00000200
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#define TX39_CONF_HALT 0x00000100
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#define TX39_CONF_LOCK 0x00000080
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#define TX39_CONF_ICE 0x00000020
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#define TX39_CONF_DCE 0x00000010
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#define TX39_CONF_IRSIZE_SHIFT 2
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#define TX39_CONF_IRSIZE_MASK 0x0000000c
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#define TX39_CONF_DRSIZE_SHIFT 0
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#define TX39_CONF_DRSIZE_MASK 0x00000003
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/*
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* Status register bits available in all MIPS CPUs.
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*/
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#define ST0_IM 0x0000ff00
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#define STATUSB_IP0 8
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#define STATUSF_IP0 (_ULCAST_(1) << 8)
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#define STATUSB_IP1 9
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#define STATUSF_IP1 (_ULCAST_(1) << 9)
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#define STATUSB_IP2 10
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#define STATUSF_IP2 (_ULCAST_(1) << 10)
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#define STATUSB_IP3 11
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#define STATUSF_IP3 (_ULCAST_(1) << 11)
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#define STATUSB_IP4 12
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#define STATUSF_IP4 (_ULCAST_(1) << 12)
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#define STATUSB_IP5 13
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#define STATUSF_IP5 (_ULCAST_(1) << 13)
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#define STATUSB_IP6 14
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#define STATUSF_IP6 (_ULCAST_(1) << 14)
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#define STATUSB_IP7 15
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#define STATUSF_IP7 (_ULCAST_(1) << 15)
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#define STATUSB_IP8 0
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#define STATUSF_IP8 (_ULCAST_(1) << 0)
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#define STATUSB_IP9 1
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#define STATUSF_IP9 (_ULCAST_(1) << 1)
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#define STATUSB_IP10 2
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#define STATUSF_IP10 (_ULCAST_(1) << 2)
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#define STATUSB_IP11 3
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#define STATUSF_IP11 (_ULCAST_(1) << 3)
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#define STATUSB_IP12 4
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#define STATUSF_IP12 (_ULCAST_(1) << 4)
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#define STATUSB_IP13 5
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#define STATUSF_IP13 (_ULCAST_(1) << 5)
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#define STATUSB_IP14 6
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#define STATUSF_IP14 (_ULCAST_(1) << 6)
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#define STATUSB_IP15 7
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#define STATUSF_IP15 (_ULCAST_(1) << 7)
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#define ST0_CH 0x00040000
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#define ST0_SR 0x00100000
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#define ST0_TS 0x00200000
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#define ST0_BEV 0x00400000
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#define ST0_RE 0x02000000
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#define ST0_FR 0x04000000
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#define ST0_CU 0xf0000000
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#define ST0_CU0 0x10000000
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#define ST0_CU1 0x20000000
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#define ST0_CU2 0x40000000
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#define ST0_CU3 0x80000000
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#define ST0_XX 0x80000000 /* MIPS IV naming */
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/*
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* Bitfields and bit numbers in the coprocessor 0 cause register.
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*
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* Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
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*/
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#define CAUSEB_EXCCODE 2
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#define CAUSEF_EXCCODE (_ULCAST_(31) << 2)
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#define CAUSEB_IP 8
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#define CAUSEF_IP (_ULCAST_(255) << 8)
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#define CAUSEB_IP0 8
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#define CAUSEF_IP0 (_ULCAST_(1) << 8)
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#define CAUSEB_IP1 9
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#define CAUSEF_IP1 (_ULCAST_(1) << 9)
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#define CAUSEB_IP2 10
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#define CAUSEF_IP2 (_ULCAST_(1) << 10)
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#define CAUSEB_IP3 11
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#define CAUSEF_IP3 (_ULCAST_(1) << 11)
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#define CAUSEB_IP4 12
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#define CAUSEF_IP4 (_ULCAST_(1) << 12)
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#define CAUSEB_IP5 13
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#define CAUSEF_IP5 (_ULCAST_(1) << 13)
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#define CAUSEB_IP6 14
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#define CAUSEF_IP6 (_ULCAST_(1) << 14)
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#define CAUSEB_IP7 15
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#define CAUSEF_IP7 (_ULCAST_(1) << 15)
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#define CAUSEB_IV 23
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#define CAUSEF_IV (_ULCAST_(1) << 23)
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#define CAUSEB_CE 28
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#define CAUSEF_CE (_ULCAST_(3) << 28)
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#define CAUSEB_BD 31
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#define CAUSEF_BD (_ULCAST_(1) << 31)
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/*
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* Bits in the coprocessor 0 config register.
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*/
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/* Generic bits. */
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#define CONF_CM_CACHABLE_NO_WA 0
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#define CONF_CM_CACHABLE_WA 1
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#define CONF_CM_UNCACHED 2
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#define CONF_CM_CACHABLE_NONCOHERENT 3
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#define CONF_CM_CACHABLE_CE 4
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#define CONF_CM_CACHABLE_COW 5
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#define CONF_CM_CACHABLE_CUW 6
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#define CONF_CM_CACHABLE_ACCELERATED 7
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#define CONF_CM_CMASK 7
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#define CONF_BE (_ULCAST_(1) << 15)
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/* Bits common to various processors. */
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#define CONF_CU (_ULCAST_(1) << 3)
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#define CONF_DB (_ULCAST_(1) << 4)
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#define CONF_IB (_ULCAST_(1) << 5)
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#define CONF_DC (_ULCAST_(7) << 6)
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#define CONF_IC (_ULCAST_(7) << 9)
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#define CONF_EB (_ULCAST_(1) << 13)
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#define CONF_EM (_ULCAST_(1) << 14)
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#define CONF_SM (_ULCAST_(1) << 16)
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#define CONF_SC (_ULCAST_(1) << 17)
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#define CONF_EW (_ULCAST_(3) << 18)
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#define CONF_EP (_ULCAST_(15)<< 24)
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#define CONF_EC (_ULCAST_(7) << 28)
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#define CONF_CM (_ULCAST_(1) << 31)
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/* Bits specific to the R4xx0. */
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#define R4K_CONF_SW (_ULCAST_(1) << 20)
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#define R4K_CONF_SS (_ULCAST_(1) << 21)
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#define R4K_CONF_SB (_ULCAST_(3) << 22)
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/* Bits specific to the R5000. */
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#define R5K_CONF_SE (_ULCAST_(1) << 12)
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#define R5K_CONF_SS (_ULCAST_(3) << 20)
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/* Bits specific to the RM7000. */
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#define RM7K_CONF_SE (_ULCAST_(1) << 3)
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#define RM7K_CONF_TE (_ULCAST_(1) << 12)
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#define RM7K_CONF_CLK (_ULCAST_(1) << 16)
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#define RM7K_CONF_TC (_ULCAST_(1) << 17)
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#define RM7K_CONF_SI (_ULCAST_(3) << 20)
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#define RM7K_CONF_SC (_ULCAST_(1) << 31)
|
|
|
|
/* Bits specific to the R10000. */
|
|
#define R10K_CONF_DN (_ULCAST_(3) << 3)
|
|
#define R10K_CONF_CT (_ULCAST_(1) << 5)
|
|
#define R10K_CONF_PE (_ULCAST_(1) << 6)
|
|
#define R10K_CONF_PM (_ULCAST_(3) << 7)
|
|
#define R10K_CONF_EC (_ULCAST_(15)<< 9)
|
|
#define R10K_CONF_SB (_ULCAST_(1) << 13)
|
|
#define R10K_CONF_SK (_ULCAST_(1) << 14)
|
|
#define R10K_CONF_SS (_ULCAST_(7) << 16)
|
|
#define R10K_CONF_SC (_ULCAST_(7) << 19)
|
|
#define R10K_CONF_DC (_ULCAST_(7) << 26)
|
|
#define R10K_CONF_IC (_ULCAST_(7) << 29)
|
|
|
|
/* Bits specific to the VR41xx. */
|
|
#define VR41_CONF_CS (_ULCAST_(1) << 12)
|
|
#define VR41_CONF_P4K (_ULCAST_(1) << 13)
|
|
#define VR41_CONF_BP (_ULCAST_(1) << 16)
|
|
#define VR41_CONF_M16 (_ULCAST_(1) << 20)
|
|
#define VR41_CONF_AD (_ULCAST_(1) << 23)
|
|
|
|
/* Bits specific to the R30xx. */
|
|
#define R30XX_CONF_FDM (_ULCAST_(1) << 19)
|
|
#define R30XX_CONF_REV (_ULCAST_(1) << 22)
|
|
#define R30XX_CONF_AC (_ULCAST_(1) << 23)
|
|
#define R30XX_CONF_RF (_ULCAST_(1) << 24)
|
|
#define R30XX_CONF_HALT (_ULCAST_(1) << 25)
|
|
#define R30XX_CONF_FPINT (_ULCAST_(7) << 26)
|
|
#define R30XX_CONF_DBR (_ULCAST_(1) << 29)
|
|
#define R30XX_CONF_SB (_ULCAST_(1) << 30)
|
|
#define R30XX_CONF_LOCK (_ULCAST_(1) << 31)
|
|
|
|
/* Bits specific to the TX49. */
|
|
#define TX49_CONF_DC (_ULCAST_(1) << 16)
|
|
#define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */
|
|
#define TX49_CONF_HALT (_ULCAST_(1) << 18)
|
|
#define TX49_CONF_CWFON (_ULCAST_(1) << 27)
|
|
|
|
/* Bits specific to the MIPS32/64 PRA. */
|
|
#define MIPS_CONF_MT (_ULCAST_(7) << 7)
|
|
#define MIPS_CONF_AR (_ULCAST_(7) << 10)
|
|
#define MIPS_CONF_AT (_ULCAST_(3) << 13)
|
|
#define MIPS_CONF_M (_ULCAST_(1) << 31)
|
|
|
|
/*
|
|
* Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
|
|
*/
|
|
#define MIPS_CONF1_FP (_ULCAST_(1) << 0)
|
|
#define MIPS_CONF1_EP (_ULCAST_(1) << 1)
|
|
#define MIPS_CONF1_CA (_ULCAST_(1) << 2)
|
|
#define MIPS_CONF1_WR (_ULCAST_(1) << 3)
|
|
#define MIPS_CONF1_PC (_ULCAST_(1) << 4)
|
|
#define MIPS_CONF1_MD (_ULCAST_(1) << 5)
|
|
#define MIPS_CONF1_C2 (_ULCAST_(1) << 6)
|
|
#define MIPS_CONF1_DA_SHIFT 7
|
|
#define MIPS_CONF1_DA (_ULCAST_(7) << 7)
|
|
#define MIPS_CONF1_DL_SHIFT 10
|
|
#define MIPS_CONF1_DL (_ULCAST_(7) << 10)
|
|
#define MIPS_CONF1_DS_SHIFT 13
|
|
#define MIPS_CONF1_DS (_ULCAST_(7) << 13)
|
|
#define MIPS_CONF1_IA_SHIFT 16
|
|
#define MIPS_CONF1_IA (_ULCAST_(7) << 16)
|
|
#define MIPS_CONF1_IL_SHIFT 19
|
|
#define MIPS_CONF1_IL (_ULCAST_(7) << 19)
|
|
#define MIPS_CONF1_IS_SHIFT 22
|
|
#define MIPS_CONF1_IS (_ULCAST_(7) << 22)
|
|
#define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25)
|
|
|
|
#define MIPS_CONF2_SA (_ULCAST_(15)<< 0)
|
|
#define MIPS_CONF2_SL (_ULCAST_(15)<< 4)
|
|
#define MIPS_CONF2_SS (_ULCAST_(15)<< 8)
|
|
#define MIPS_CONF2_SU (_ULCAST_(15)<< 12)
|
|
#define MIPS_CONF2_TA (_ULCAST_(15)<< 16)
|
|
#define MIPS_CONF2_TL (_ULCAST_(15)<< 20)
|
|
#define MIPS_CONF2_TS (_ULCAST_(15)<< 24)
|
|
#define MIPS_CONF2_TU (_ULCAST_(7) << 28)
|
|
|
|
#define MIPS_CONF3_TL (_ULCAST_(1) << 0)
|
|
#define MIPS_CONF3_SM (_ULCAST_(1) << 1)
|
|
#define MIPS_CONF3_MT (_ULCAST_(1) << 2)
|
|
#define MIPS_CONF3_SP (_ULCAST_(1) << 4)
|
|
#define MIPS_CONF3_VINT (_ULCAST_(1) << 5)
|
|
#define MIPS_CONF3_VEIC (_ULCAST_(1) << 6)
|
|
#define MIPS_CONF3_LPA (_ULCAST_(1) << 7)
|
|
#define MIPS_CONF3_DSP (_ULCAST_(1) << 10)
|
|
#define MIPS_CONF3_ULRI (_ULCAST_(1) << 13)
|
|
|
|
#define MIPS_CONF7_WII (_ULCAST_(1) << 31)
|
|
|
|
#define MIPS_CONF7_RPS (_ULCAST_(1) << 2)
|
|
|
|
/*
|
|
* Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
|
|
*/
|
|
#define MIPS_FPIR_S (_ULCAST_(1) << 16)
|
|
#define MIPS_FPIR_D (_ULCAST_(1) << 17)
|
|
#define MIPS_FPIR_PS (_ULCAST_(1) << 18)
|
|
#define MIPS_FPIR_3D (_ULCAST_(1) << 19)
|
|
#define MIPS_FPIR_W (_ULCAST_(1) << 20)
|
|
#define MIPS_FPIR_L (_ULCAST_(1) << 21)
|
|
#define MIPS_FPIR_F64 (_ULCAST_(1) << 22)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/*
|
|
* Functions to access the R10000 performance counters. These are basically
|
|
* mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
|
|
* performance counter number encoded into bits 1 ... 5 of the instruction.
|
|
* Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
|
|
* disassembler these will look like an access to sel 0 or 1.
|
|
*/
|
|
#define read_r10k_perf_cntr(counter) \
|
|
({ \
|
|
unsigned int __res; \
|
|
__asm__ __volatile__( \
|
|
"mfpc\t%0, %1" \
|
|
: "=r" (__res) \
|
|
: "i" (counter)); \
|
|
\
|
|
__res; \
|
|
})
|
|
|
|
#define write_r10k_perf_cntr(counter,val) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
"mtpc\t%0, %1" \
|
|
: \
|
|
: "r" (val), "i" (counter)); \
|
|
} while (0)
|
|
|
|
#define read_r10k_perf_event(counter) \
|
|
({ \
|
|
unsigned int __res; \
|
|
__asm__ __volatile__( \
|
|
"mfps\t%0, %1" \
|
|
: "=r" (__res) \
|
|
: "i" (counter)); \
|
|
\
|
|
__res; \
|
|
})
|
|
|
|
#define write_r10k_perf_cntl(counter,val) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
"mtps\t%0, %1" \
|
|
: \
|
|
: "r" (val), "i" (counter)); \
|
|
} while (0)
|
|
|
|
/*
|
|
* Macros to access the system control coprocessor
|
|
*/
|
|
|
|
#define __read_32bit_c0_register(source, sel) \
|
|
({ unsigned int __res; \
|
|
if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
"mfc0\t%0, " #source "\n\t" \
|
|
: "=r" (__res)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips32\n\t" \
|
|
"mfc0\t%0, " #source ", " #sel "\n\t" \
|
|
".set\tmips0\n\t" \
|
|
: "=r" (__res)); \
|
|
__res; \
|
|
})
|
|
|
|
#define __read_64bit_c0_register(source, sel) \
|
|
({ unsigned long long __res; \
|
|
if (sizeof(unsigned long) == 4) \
|
|
__res = __read_64bit_c0_split(source, sel); \
|
|
else if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
".set\tmips3\n\t" \
|
|
"dmfc0\t%0, " #source "\n\t" \
|
|
".set\tmips0" \
|
|
: "=r" (__res)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dmfc0\t%0, " #source ", " #sel "\n\t" \
|
|
".set\tmips0" \
|
|
: "=r" (__res)); \
|
|
__res; \
|
|
})
|
|
|
|
#define __write_32bit_c0_register(register, sel, value) \
|
|
do { \
|
|
if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
"mtc0\t%z0, " #register "\n\t" \
|
|
: : "Jr" ((unsigned int)(value))); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips32\n\t" \
|
|
"mtc0\t%z0, " #register ", " #sel "\n\t" \
|
|
".set\tmips0" \
|
|
: : "Jr" ((unsigned int)(value))); \
|
|
} while (0)
|
|
|
|
#define __write_64bit_c0_register(register, sel, value) \
|
|
do { \
|
|
if (sizeof(unsigned long) == 4) \
|
|
__write_64bit_c0_split(register, sel, value); \
|
|
else if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
".set\tmips3\n\t" \
|
|
"dmtc0\t%z0, " #register "\n\t" \
|
|
".set\tmips0" \
|
|
: : "Jr" (value)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dmtc0\t%z0, " #register ", " #sel "\n\t" \
|
|
".set\tmips0" \
|
|
: : "Jr" (value)); \
|
|
} while (0)
|
|
|
|
#define __read_ulong_c0_register(reg, sel) \
|
|
((sizeof(unsigned long) == 4) ? \
|
|
(unsigned long) __read_32bit_c0_register(reg, sel) : \
|
|
(unsigned long) __read_64bit_c0_register(reg, sel))
|
|
|
|
#define __write_ulong_c0_register(reg, sel, val) \
|
|
do { \
|
|
if (sizeof(unsigned long) == 4) \
|
|
__write_32bit_c0_register(reg, sel, val); \
|
|
else \
|
|
__write_64bit_c0_register(reg, sel, val); \
|
|
} while (0)
|
|
|
|
/*
|
|
* On RM7000/RM9000 these are uses to access cop0 set 1 registers
|
|
*/
|
|
#define __read_32bit_c0_ctrl_register(source) \
|
|
({ unsigned int __res; \
|
|
__asm__ __volatile__( \
|
|
"cfc0\t%0, " #source "\n\t" \
|
|
: "=r" (__res)); \
|
|
__res; \
|
|
})
|
|
|
|
#define __write_32bit_c0_ctrl_register(register, value) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
"ctc0\t%z0, " #register "\n\t" \
|
|
: : "Jr" ((unsigned int)(value))); \
|
|
} while (0)
|
|
|
|
/*
|
|
* These versions are only needed for systems with more than 38 bits of
|
|
* physical address space running the 32-bit kernel. That's none atm :-)
|
|
*/
|
|
#define __read_64bit_c0_split(source, sel) \
|
|
({ \
|
|
unsigned long long __val; \
|
|
unsigned long __flags; \
|
|
\
|
|
local_irq_save(__flags); \
|
|
if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dmfc0\t%M0, " #source "\n\t" \
|
|
"dsll\t%L0, %M0, 32\n\t" \
|
|
"dsrl\t%M0, %M0, 32\n\t" \
|
|
"dsrl\t%L0, %L0, 32\n\t" \
|
|
".set\tmips0" \
|
|
: "=r" (__val)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dmfc0\t%M0, " #source ", " #sel "\n\t" \
|
|
"dsll\t%L0, %M0, 32\n\t" \
|
|
"dsrl\t%M0, %M0, 32\n\t" \
|
|
"dsrl\t%L0, %L0, 32\n\t" \
|
|
".set\tmips0" \
|
|
: "=r" (__val)); \
|
|
local_irq_restore(__flags); \
|
|
\
|
|
__val; \
|
|
})
|
|
|
|
#define __write_64bit_c0_split(source, sel, val) \
|
|
do { \
|
|
unsigned long __flags; \
|
|
\
|
|
local_irq_save(__flags); \
|
|
if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dsll\t%L0, %L0, 32\n\t" \
|
|
"dsrl\t%L0, %L0, 32\n\t" \
|
|
"dsll\t%M0, %M0, 32\n\t" \
|
|
"or\t%L0, %L0, %M0\n\t" \
|
|
"dmtc0\t%L0, " #source "\n\t" \
|
|
".set\tmips0" \
|
|
: : "r" (val)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dsll\t%L0, %L0, 32\n\t" \
|
|
"dsrl\t%L0, %L0, 32\n\t" \
|
|
"dsll\t%M0, %M0, 32\n\t" \
|
|
"or\t%L0, %L0, %M0\n\t" \
|
|
"dmtc0\t%L0, " #source ", " #sel "\n\t" \
|
|
".set\tmips0" \
|
|
: : "r" (val)); \
|
|
local_irq_restore(__flags); \
|
|
} while (0)
|
|
|
|
#define read_c0_index() __read_32bit_c0_register($0, 0)
|
|
#define write_c0_index(val) __write_32bit_c0_register($0, 0, val)
|
|
|
|
#define read_c0_entrylo0() __read_ulong_c0_register($2, 0)
|
|
#define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val)
|
|
|
|
#define read_c0_entrylo1() __read_ulong_c0_register($3, 0)
|
|
#define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val)
|
|
|
|
#define read_c0_conf() __read_32bit_c0_register($3, 0)
|
|
#define write_c0_conf(val) __write_32bit_c0_register($3, 0, val)
|
|
|
|
#define read_c0_context() __read_ulong_c0_register($4, 0)
|
|
#define write_c0_context(val) __write_ulong_c0_register($4, 0, val)
|
|
|
|
#define read_c0_userlocal() __read_ulong_c0_register($4, 2)
|
|
#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
|
|
|
|
#define read_c0_pagemask() __read_32bit_c0_register($5, 0)
|
|
#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
|
|
|
|
#define read_c0_wired() __read_32bit_c0_register($6, 0)
|
|
#define write_c0_wired(val) __write_32bit_c0_register($6, 0, val)
|
|
|
|
#define read_c0_info() __read_32bit_c0_register($7, 0)
|
|
|
|
#define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */
|
|
#define write_c0_cache(val) __write_32bit_c0_register($7, 0, val)
|
|
|
|
#define read_c0_badvaddr() __read_ulong_c0_register($8, 0)
|
|
#define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val)
|
|
|
|
#define read_c0_count() __read_32bit_c0_register($9, 0)
|
|
#define write_c0_count(val) __write_32bit_c0_register($9, 0, val)
|
|
|
|
#define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */
|
|
#define write_c0_count2(val) __write_32bit_c0_register($9, 6, val)
|
|
|
|
#define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */
|
|
#define write_c0_count3(val) __write_32bit_c0_register($9, 7, val)
|
|
|
|
#define read_c0_entryhi() __read_ulong_c0_register($10, 0)
|
|
#define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val)
|
|
|
|
#define read_c0_compare() __read_32bit_c0_register($11, 0)
|
|
#define write_c0_compare(val) __write_32bit_c0_register($11, 0, val)
|
|
|
|
#define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */
|
|
#define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val)
|
|
|
|
#define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */
|
|
#define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val)
|
|
|
|
#define read_c0_status() __read_32bit_c0_register($12, 0)
|
|
#ifdef CONFIG_MIPS_MT_SMTC
|
|
#define write_c0_status(val) \
|
|
do { \
|
|
__write_32bit_c0_register($12, 0, val); \
|
|
__ehb(); \
|
|
} while (0)
|
|
#else
|
|
/*
|
|
* Legacy non-SMTC code, which may be hazardous
|
|
* but which might not support EHB
|
|
*/
|
|
#define write_c0_status(val) __write_32bit_c0_register($12, 0, val)
|
|
#endif /* CONFIG_MIPS_MT_SMTC */
|
|
|
|
#define read_c0_cause() __read_32bit_c0_register($13, 0)
|
|
#define write_c0_cause(val) __write_32bit_c0_register($13, 0, val)
|
|
|
|
#define read_c0_epc() __read_ulong_c0_register($14, 0)
|
|
#define write_c0_epc(val) __write_ulong_c0_register($14, 0, val)
|
|
|
|
#define read_c0_prid() __read_32bit_c0_register($15, 0)
|
|
|
|
#define read_c0_config() __read_32bit_c0_register($16, 0)
|
|
#define read_c0_config1() __read_32bit_c0_register($16, 1)
|
|
#define read_c0_config2() __read_32bit_c0_register($16, 2)
|
|
#define read_c0_config3() __read_32bit_c0_register($16, 3)
|
|
#define read_c0_config4() __read_32bit_c0_register($16, 4)
|
|
#define read_c0_config5() __read_32bit_c0_register($16, 5)
|
|
#define read_c0_config6() __read_32bit_c0_register($16, 6)
|
|
#define read_c0_config7() __read_32bit_c0_register($16, 7)
|
|
#define write_c0_config(val) __write_32bit_c0_register($16, 0, val)
|
|
#define write_c0_config1(val) __write_32bit_c0_register($16, 1, val)
|
|
#define write_c0_config2(val) __write_32bit_c0_register($16, 2, val)
|
|
#define write_c0_config3(val) __write_32bit_c0_register($16, 3, val)
|
|
#define write_c0_config4(val) __write_32bit_c0_register($16, 4, val)
|
|
#define write_c0_config5(val) __write_32bit_c0_register($16, 5, val)
|
|
#define write_c0_config6(val) __write_32bit_c0_register($16, 6, val)
|
|
#define write_c0_config7(val) __write_32bit_c0_register($16, 7, val)
|
|
|
|
/*
|
|
* The WatchLo register. There may be upto 8 of them.
|
|
*/
|
|
#define read_c0_watchlo0() __read_ulong_c0_register($18, 0)
|
|
#define read_c0_watchlo1() __read_ulong_c0_register($18, 1)
|
|
#define read_c0_watchlo2() __read_ulong_c0_register($18, 2)
|
|
#define read_c0_watchlo3() __read_ulong_c0_register($18, 3)
|
|
#define read_c0_watchlo4() __read_ulong_c0_register($18, 4)
|
|
#define read_c0_watchlo5() __read_ulong_c0_register($18, 5)
|
|
#define read_c0_watchlo6() __read_ulong_c0_register($18, 6)
|
|
#define read_c0_watchlo7() __read_ulong_c0_register($18, 7)
|
|
#define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val)
|
|
#define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val)
|
|
#define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val)
|
|
#define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val)
|
|
#define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val)
|
|
#define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val)
|
|
#define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val)
|
|
#define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val)
|
|
|
|
/*
|
|
* The WatchHi register. There may be upto 8 of them.
|
|
*/
|
|
#define read_c0_watchhi0() __read_32bit_c0_register($19, 0)
|
|
#define read_c0_watchhi1() __read_32bit_c0_register($19, 1)
|
|
#define read_c0_watchhi2() __read_32bit_c0_register($19, 2)
|
|
#define read_c0_watchhi3() __read_32bit_c0_register($19, 3)
|
|
#define read_c0_watchhi4() __read_32bit_c0_register($19, 4)
|
|
#define read_c0_watchhi5() __read_32bit_c0_register($19, 5)
|
|
#define read_c0_watchhi6() __read_32bit_c0_register($19, 6)
|
|
#define read_c0_watchhi7() __read_32bit_c0_register($19, 7)
|
|
|
|
#define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val)
|
|
#define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val)
|
|
#define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val)
|
|
#define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val)
|
|
#define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val)
|
|
#define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val)
|
|
#define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val)
|
|
#define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val)
|
|
|
|
#define read_c0_xcontext() __read_ulong_c0_register($20, 0)
|
|
#define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val)
|
|
|
|
#define read_c0_intcontrol() __read_32bit_c0_ctrl_register($20)
|
|
#define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)
|
|
|
|
#define read_c0_framemask() __read_32bit_c0_register($21, 0)
|
|
#define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
|
|
|
|
/* RM9000 PerfControl performance counter control register */
|
|
#define read_c0_perfcontrol() __read_32bit_c0_register($22, 0)
|
|
#define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val)
|
|
|
|
#define read_c0_diag() __read_32bit_c0_register($22, 0)
|
|
#define write_c0_diag(val) __write_32bit_c0_register($22, 0, val)
|
|
|
|
#define read_c0_diag1() __read_32bit_c0_register($22, 1)
|
|
#define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val)
|
|
|
|
#define read_c0_diag2() __read_32bit_c0_register($22, 2)
|
|
#define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val)
|
|
|
|
#define read_c0_diag3() __read_32bit_c0_register($22, 3)
|
|
#define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val)
|
|
|
|
#define read_c0_diag4() __read_32bit_c0_register($22, 4)
|
|
#define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val)
|
|
|
|
#define read_c0_diag5() __read_32bit_c0_register($22, 5)
|
|
#define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val)
|
|
|
|
#define read_c0_debug() __read_32bit_c0_register($23, 0)
|
|
#define write_c0_debug(val) __write_32bit_c0_register($23, 0, val)
|
|
|
|
#define read_c0_depc() __read_ulong_c0_register($24, 0)
|
|
#define write_c0_depc(val) __write_ulong_c0_register($24, 0, val)
|
|
|
|
/*
|
|
* MIPS32 / MIPS64 performance counters
|
|
*/
|
|
#define read_c0_perfctrl0() __read_32bit_c0_register($25, 0)
|
|
#define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
|
|
#define read_c0_perfcntr0() __read_32bit_c0_register($25, 1)
|
|
#define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
|
|
#define read_c0_perfctrl1() __read_32bit_c0_register($25, 2)
|
|
#define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
|
|
#define read_c0_perfcntr1() __read_32bit_c0_register($25, 3)
|
|
#define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
|
|
#define read_c0_perfctrl2() __read_32bit_c0_register($25, 4)
|
|
#define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
|
|
#define read_c0_perfcntr2() __read_32bit_c0_register($25, 5)
|
|
#define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
|
|
#define read_c0_perfctrl3() __read_32bit_c0_register($25, 6)
|
|
#define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
|
|
#define read_c0_perfcntr3() __read_32bit_c0_register($25, 7)
|
|
#define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
|
|
|
|
/* RM9000 PerfCount performance counter register */
|
|
#define read_c0_perfcount() __read_64bit_c0_register($25, 0)
|
|
#define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val)
|
|
|
|
#define read_c0_ecc() __read_32bit_c0_register($26, 0)
|
|
#define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val)
|
|
|
|
#define read_c0_derraddr0() __read_ulong_c0_register($26, 1)
|
|
#define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
|
|
|
|
#define read_c0_cacheerr() __read_32bit_c0_register($27, 0)
|
|
|
|
#define read_c0_derraddr1() __read_ulong_c0_register($27, 1)
|
|
#define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
|
|
|
|
#define read_c0_taglo() __read_32bit_c0_register($28, 0)
|
|
#define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val)
|
|
|
|
#define read_c0_dtaglo() __read_32bit_c0_register($28, 2)
|
|
#define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val)
|
|
|
|
#define read_c0_taghi() __read_32bit_c0_register($29, 0)
|
|
#define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val)
|
|
|
|
#define read_c0_errorepc() __read_ulong_c0_register($30, 0)
|
|
#define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val)
|
|
|
|
/* MIPSR2 */
|
|
#define read_c0_hwrena() __read_32bit_c0_register($7, 0)
|
|
#define write_c0_hwrena(val) __write_32bit_c0_register($7, 0, val)
|
|
|
|
#define read_c0_intctl() __read_32bit_c0_register($12, 1)
|
|
#define write_c0_intctl(val) __write_32bit_c0_register($12, 1, val)
|
|
|
|
#define read_c0_srsctl() __read_32bit_c0_register($12, 2)
|
|
#define write_c0_srsctl(val) __write_32bit_c0_register($12, 2, val)
|
|
|
|
#define read_c0_srsmap() __read_32bit_c0_register($12, 3)
|
|
#define write_c0_srsmap(val) __write_32bit_c0_register($12, 3, val)
|
|
|
|
#define read_c0_ebase() __read_32bit_c0_register($15, 1)
|
|
#define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val)
|
|
|
|
/*
|
|
* Macros to access the floating point coprocessor control registers
|
|
*/
|
|
#define read_32bit_cp1_register(source) \
|
|
({ int __res; \
|
|
__asm__ __volatile__( \
|
|
".set\tpush\n\t" \
|
|
".set\treorder\n\t" \
|
|
"cfc1\t%0,"STR(source)"\n\t" \
|
|
".set\tpop" \
|
|
: "=r" (__res)); \
|
|
__res;})
|
|
|
|
#define rddsp(mask) \
|
|
({ \
|
|
unsigned int __res; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # rddsp $1, %x1 \n" \
|
|
" .word 0x7c000cb8 | (%x1 << 16) \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__res) \
|
|
: "i" (mask)); \
|
|
__res; \
|
|
})
|
|
|
|
#define wrdsp(val, mask) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # wrdsp $1, %x1 \n" \
|
|
" .word 0x7c2004f8 | (%x1 << 11) \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (val), "i" (mask)); \
|
|
} while (0)
|
|
|
|
#define mfhi0() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mfhi %0, $ac0 \n" \
|
|
" .word 0x00000810 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mfhi1() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mfhi %0, $ac1 \n" \
|
|
" .word 0x00200810 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mfhi2() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mfhi %0, $ac2 \n" \
|
|
" .word 0x00400810 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mfhi3() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mfhi %0, $ac3 \n" \
|
|
" .word 0x00600810 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mflo0() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mflo %0, $ac0 \n" \
|
|
" .word 0x00000812 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mflo1() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mflo %0, $ac1 \n" \
|
|
" .word 0x00200812 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mflo2() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mflo %0, $ac2 \n" \
|
|
" .word 0x00400812 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mflo3() \
|
|
({ \
|
|
unsigned long __treg; \
|
|
\
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" # mflo %0, $ac3 \n" \
|
|
" .word 0x00600812 \n" \
|
|
" move %0, $1 \n" \
|
|
" .set pop \n" \
|
|
: "=r" (__treg)); \
|
|
__treg; \
|
|
})
|
|
|
|
#define mthi0(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mthi $1, $ac0 \n" \
|
|
" .word 0x00200011 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mthi1(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mthi $1, $ac1 \n" \
|
|
" .word 0x00200811 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mthi2(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mthi $1, $ac2 \n" \
|
|
" .word 0x00201011 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mthi3(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mthi $1, $ac3 \n" \
|
|
" .word 0x00201811 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mtlo0(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mtlo $1, $ac0 \n" \
|
|
" .word 0x00200013 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mtlo1(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mtlo $1, $ac1 \n" \
|
|
" .word 0x00200813 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mtlo2(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mtlo $1, $ac2 \n" \
|
|
" .word 0x00201013 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
#define mtlo3(x) \
|
|
do { \
|
|
__asm__ __volatile__( \
|
|
" .set push \n" \
|
|
" .set noat \n" \
|
|
" move $1, %0 \n" \
|
|
" # mtlo $1, $ac3 \n" \
|
|
" .word 0x00201813 \n" \
|
|
" .set pop \n" \
|
|
: \
|
|
: "r" (x)); \
|
|
} while (0)
|
|
|
|
/*
|
|
* TLB operations.
|
|
*
|
|
* It is responsibility of the caller to take care of any TLB hazards.
|
|
*/
|
|
static inline void tlb_probe(void)
|
|
{
|
|
__asm__ __volatile__(
|
|
".set noreorder\n\t"
|
|
"tlbp\n\t"
|
|
".set reorder");
|
|
}
|
|
|
|
static inline void tlb_read(void)
|
|
{
|
|
#if MIPS34K_MISSED_ITLB_WAR
|
|
int res = 0;
|
|
|
|
__asm__ __volatile__(
|
|
" .set push \n"
|
|
" .set noreorder \n"
|
|
" .set noat \n"
|
|
" .set mips32r2 \n"
|
|
" .word 0x41610001 # dvpe $1 \n"
|
|
" move %0, $1 \n"
|
|
" ehb \n"
|
|
" .set pop \n"
|
|
: "=r" (res));
|
|
|
|
instruction_hazard();
|
|
#endif
|
|
|
|
__asm__ __volatile__(
|
|
".set noreorder\n\t"
|
|
"tlbr\n\t"
|
|
".set reorder");
|
|
|
|
#if MIPS34K_MISSED_ITLB_WAR
|
|
if ((res & _ULCAST_(1)))
|
|
__asm__ __volatile__(
|
|
" .set push \n"
|
|
" .set noreorder \n"
|
|
" .set noat \n"
|
|
" .set mips32r2 \n"
|
|
" .word 0x41600021 # evpe \n"
|
|
" ehb \n"
|
|
" .set pop \n");
|
|
#endif
|
|
}
|
|
|
|
static inline void tlb_write_indexed(void)
|
|
{
|
|
__asm__ __volatile__(
|
|
".set noreorder\n\t"
|
|
"tlbwi\n\t"
|
|
".set reorder");
|
|
}
|
|
|
|
static inline void tlb_write_random(void)
|
|
{
|
|
__asm__ __volatile__(
|
|
".set noreorder\n\t"
|
|
"tlbwr\n\t"
|
|
".set reorder");
|
|
}
|
|
|
|
/*
|
|
* Manipulate bits in a c0 register.
|
|
*/
|
|
#define __BUILD_SET_C0(name) \
|
|
static inline unsigned int \
|
|
set_c0_##name(unsigned int set) \
|
|
{ \
|
|
unsigned int res; \
|
|
\
|
|
res = read_c0_##name(); \
|
|
res |= set; \
|
|
write_c0_##name(res); \
|
|
\
|
|
return res; \
|
|
} \
|
|
\
|
|
static inline unsigned int \
|
|
clear_c0_##name(unsigned int clear) \
|
|
{ \
|
|
unsigned int res; \
|
|
\
|
|
res = read_c0_##name(); \
|
|
res &= ~clear; \
|
|
write_c0_##name(res); \
|
|
\
|
|
return res; \
|
|
} \
|
|
\
|
|
static inline unsigned int \
|
|
change_c0_##name(unsigned int change, unsigned int new) \
|
|
{ \
|
|
unsigned int res; \
|
|
\
|
|
res = read_c0_##name(); \
|
|
res &= ~change; \
|
|
res |= (new & change); \
|
|
write_c0_##name(res); \
|
|
\
|
|
return res; \
|
|
}
|
|
|
|
__BUILD_SET_C0(status)
|
|
__BUILD_SET_C0(cause)
|
|
__BUILD_SET_C0(config)
|
|
__BUILD_SET_C0(intcontrol)
|
|
__BUILD_SET_C0(intctl)
|
|
__BUILD_SET_C0(srsmap)
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_MIPSREGS_H */
|