| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303 | /* * 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) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle * Copyright (C) 2000 Silicon Graphics, Inc. * Modified for further R[236]000 support by Paul M. Antoine, 1996. * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com * Copyright (C) 2000, 07 MIPS Technologies, Inc. * Copyright (C) 2003, 2004  Maciej W. Rozycki */#ifndef _ASM_MIPSREGS_H#define _ASM_MIPSREGS_H#include <linux/linkage.h>#include <asm/hazards.h>#include <asm/war.h>/* * The following macros are especially useful for __asm__ * inline assembler. */#ifndef __STR#define __STR(x) #x#endif#ifndef STR#define STR(x) __STR(x)#endif/* *  Configure language */#ifdef __ASSEMBLY__#define _ULCAST_#else#define _ULCAST_ (unsigned long)#endif/* * Coprocessor 0 register names */#define CP0_INDEX $0#define CP0_RANDOM $1#define CP0_ENTRYLO0 $2#define CP0_ENTRYLO1 $3#define CP0_CONF $3#define CP0_CONTEXT $4#define CP0_PAGEMASK $5#define CP0_WIRED $6#define CP0_INFO $7#define CP0_BADVADDR $8#define CP0_COUNT $9#define CP0_ENTRYHI $10#define CP0_COMPARE $11#define CP0_STATUS $12#define CP0_CAUSE $13#define CP0_EPC $14#define CP0_PRID $15#define CP0_CONFIG $16#define CP0_LLADDR $17#define CP0_WATCHLO $18#define CP0_WATCHHI $19#define CP0_XCONTEXT $20#define CP0_FRAMEMASK $21#define CP0_DIAGNOSTIC $22#define CP0_DEBUG $23#define CP0_DEPC $24#define CP0_PERFORMANCE $25#define CP0_ECC $26#define CP0_CACHEERR $27#define CP0_TAGLO $28#define CP0_TAGHI $29#define CP0_ERROREPC $30#define CP0_DESAVE $31/* * R4640/R4650 cp0 register names.  These registers are listed * here only for completeness; without MMU these CPUs are not useable * by Linux.  A future ELKS port might take make Linux run on them * though ... */#define CP0_IBASE $0#define CP0_IBOUND $1#define CP0_DBASE $2#define CP0_DBOUND $3#define CP0_CALG $17#define CP0_IWATCH $18#define CP0_DWATCH $19/* * Coprocessor 0 Set 1 register names */#define CP0_S1_DERRADDR0  $26#define CP0_S1_DERRADDR1  $27#define CP0_S1_INTCONTROL $20/* * Coprocessor 0 Set 2 register names */#define CP0_S2_SRSCTL	  $12	/* MIPSR2 *//* * Coprocessor 0 Set 3 register names */#define CP0_S3_SRSMAP	  $12	/* MIPSR2 *//* *  TX39 Series */#define CP0_TX39_CACHE	$7/* * Coprocessor 1 (FPU) register names */#define CP1_REVISION   $0#define CP1_STATUS     $31/* * FPU Status Register Values *//* * Status Register Values */#define FPU_CSR_FLUSH   0x01000000      /* flush denormalised results to 0 */#define FPU_CSR_COND    0x00800000      /* $fcc0 */#define FPU_CSR_COND0   0x00800000      /* $fcc0 */#define FPU_CSR_COND1   0x02000000      /* $fcc1 */#define FPU_CSR_COND2   0x04000000      /* $fcc2 */#define FPU_CSR_COND3   0x08000000      /* $fcc3 */#define FPU_CSR_COND4   0x10000000      /* $fcc4 */#define FPU_CSR_COND5   0x20000000      /* $fcc5 */#define FPU_CSR_COND6   0x40000000      /* $fcc6 */#define FPU_CSR_COND7   0x80000000      /* $fcc7 *//* * Bits 18 - 20 of the FPU Status Register will be read as 0, * and should be written as zero. */#define FPU_CSR_RSVD	0x001c0000/* * X the exception cause indicator * E the exception enable * S the sticky/flag bit*/#define FPU_CSR_ALL_X   0x0003f000#define FPU_CSR_UNI_X   0x00020000#define FPU_CSR_INV_X   0x00010000#define FPU_CSR_DIV_X   0x00008000#define FPU_CSR_OVF_X   0x00004000#define FPU_CSR_UDF_X   0x00002000#define FPU_CSR_INE_X   0x00001000#define FPU_CSR_ALL_E   0x00000f80#define FPU_CSR_INV_E   0x00000800#define FPU_CSR_DIV_E   0x00000400#define FPU_CSR_OVF_E   0x00000200#define FPU_CSR_UDF_E   0x00000100#define FPU_CSR_INE_E   0x00000080#define FPU_CSR_ALL_S   0x0000007c#define FPU_CSR_INV_S   0x00000040#define FPU_CSR_DIV_S   0x00000020#define FPU_CSR_OVF_S   0x00000010#define FPU_CSR_UDF_S   0x00000008#define FPU_CSR_INE_S   0x00000004/* Bits 0 and 1 of FPU Status Register specify the rounding mode */#define FPU_CSR_RM	0x00000003#define FPU_CSR_RN      0x0     /* nearest */#define FPU_CSR_RZ      0x1     /* towards zero */#define FPU_CSR_RU      0x2     /* towards +Infinity */#define FPU_CSR_RD      0x3     /* towards -Infinity *//* * Values for PageMask register */#ifdef CONFIG_CPU_VR41XX/* Why doesn't stupidity hurt ... */#define PM_1K		0x00000000#define PM_4K		0x00001800#define PM_16K		0x00007800#define PM_64K		0x0001f800#define PM_256K		0x0007f800#else#define PM_4K		0x00000000#define PM_8K		0x00002000#define PM_16K		0x00006000#define PM_32K		0x0000e000#define PM_64K		0x0001e000#define PM_128K		0x0003e000#define PM_256K		0x0007e000#define PM_512K		0x000fe000#define PM_1M		0x001fe000#define PM_2M		0x003fe000#define PM_4M		0x007fe000#define PM_8M		0x00ffe000#define PM_16M		0x01ffe000#define PM_32M		0x03ffe000#define PM_64M		0x07ffe000#define PM_256M		0x1fffe000#define PM_1G		0x7fffe000#endif/* * Default page size for a given kernel configuration */#ifdef CONFIG_PAGE_SIZE_4KB#define PM_DEFAULT_MASK	PM_4K#elif defined(CONFIG_PAGE_SIZE_8KB)#define PM_DEFAULT_MASK	PM_8K#elif defined(CONFIG_PAGE_SIZE_16KB)#define PM_DEFAULT_MASK	PM_16K#elif defined(CONFIG_PAGE_SIZE_32KB)#define PM_DEFAULT_MASK	PM_32K#elif defined(CONFIG_PAGE_SIZE_64KB)#define PM_DEFAULT_MASK	PM_64K#else#error Bad page size configuration!#endif/* * Default huge tlb size for a given kernel configuration */#ifdef CONFIG_PAGE_SIZE_4KB#define PM_HUGE_MASK	PM_1M#elif defined(CONFIG_PAGE_SIZE_8KB)#define PM_HUGE_MASK	PM_4M#elif defined(CONFIG_PAGE_SIZE_16KB)#define PM_HUGE_MASK	PM_16M#elif defined(CONFIG_PAGE_SIZE_32KB)#define PM_HUGE_MASK	PM_64M#elif defined(CONFIG_PAGE_SIZE_64KB)#define PM_HUGE_MASK	PM_256M#elif defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)#error Bad page size configuration for hugetlbfs!#endif/* * Values used for computation of new tlb entries */#define PL_4K		12#define PL_16K		14#define PL_64K		16#define PL_256K		18#define PL_1M		20#define PL_4M		22#define PL_16M		24#define PL_64M		26#define PL_256M		28/* * PageGrain bits */#define PG_RIE		(_ULCAST_(1) <<  31)#define PG_XIE		(_ULCAST_(1) <<  30)#define PG_ELPA		(_ULCAST_(1) <<  29)#define PG_ESP		(_ULCAST_(1) <<  28)/* * R4x00 interrupt enable / cause bits */#define IE_SW0          (_ULCAST_(1) <<  8)#define IE_SW1          (_ULCAST_(1) <<  9)#define IE_IRQ0         (_ULCAST_(1) << 10)#define IE_IRQ1         (_ULCAST_(1) << 11)#define IE_IRQ2         (_ULCAST_(1) << 12)#define IE_IRQ3         (_ULCAST_(1) << 13)#define IE_IRQ4         (_ULCAST_(1) << 14)#define IE_IRQ5         (_ULCAST_(1) << 15)/* * R4x00 interrupt cause bits */#define C_SW0           (_ULCAST_(1) <<  8)#define C_SW1           (_ULCAST_(1) <<  9)#define C_IRQ0          (_ULCAST_(1) << 10)#define C_IRQ1          (_ULCAST_(1) << 11)#define C_IRQ2          (_ULCAST_(1) << 12)#define C_IRQ3          (_ULCAST_(1) << 13)#define C_IRQ4          (_ULCAST_(1) << 14)#define C_IRQ5          (_ULCAST_(1) << 15)/* * Bitfields in the R4xx0 cp0 status register */#define ST0_IE			0x00000001#define ST0_EXL			0x00000002#define ST0_ERL			0x00000004#define ST0_KSU			0x00000018#  define KSU_USER		0x00000010#  define KSU_SUPERVISOR	0x00000008#  define KSU_KERNEL		0x00000000#define ST0_UX			0x00000020#define ST0_SX			0x00000040
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