* 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 MIPS Technologies, Inc. All rights reserved.
- * Copyright (C) 2003 Maciej W. Rozycki
+ * Copyright (C) 2003, 2004 Maciej W. Rozycki
*/
#ifndef _ASM_MIPSREGS_H
#define _ASM_MIPSREGS_H
#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 ST0_IL (_ULCAST_(1) << 23)
#define ST0_DL (_ULCAST_(1) << 24)
+/*
+ * Enable the MIPS MDMX and DSP ASEs
+ */
+#define ST0_MX 0x01000000
+
/*
* Bitfields in the TX39 family CP0 Configuration Register 3
*/
#define R5K_CONF_SE (_ULCAST_(1) << 12)
#define R5K_CONF_SS (_ULCAST_(3) << 20)
+/* Bits specific to the RM7000. */
+#define RM7K_CONF_SE (_ULCAST_(1) << 3)
+#define RM7K_CONF_TE (_ULCAST_(1) << 12)
+#define RM7K_CONF_CLK (_ULCAST_(1) << 16)
+#define RM7K_CONF_TC (_ULCAST_(1) << 17)
+#define RM7K_CONF_SI (_ULCAST_(3) << 20)
+#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 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 (_ULCAST_(7) << 7)
+#define MIPS_CONF1_DL (_ULCAST_(7) << 10)
+#define MIPS_CONF1_DS (_ULCAST_(7) << 13)
+#define MIPS_CONF1_IA (_ULCAST_(7) << 16)
+#define MIPS_CONF1_IL (_ULCAST_(7) << 19)
+#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)
+
+/*
+ * 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)
+
/*
* R10000 performance counter definitions.
*
if (sel == 0) \
__asm__ __volatile__( \
"mtc0\t%z0, " #register "\n\t" \
- : : "Jr" ((unsigned int)value)); \
+ : : "Jr" ((unsigned int)(value))); \
else \
__asm__ __volatile__( \
".set\tmips32\n\t" \
"mtc0\t%z0, " #register ", " #sel "\n\t" \
".set\tmips0" \
- : : "Jr" ((unsigned int)value)); \
+ : : "Jr" ((unsigned int)(value))); \
} while (0)
#define __write_64bit_c0_register(register, sel, value) \
do { \
__asm__ __volatile__( \
"ctc0\t%z0, " #register "\n\t" \
- : : "Jr" ((unsigned int)value)); \
+ : : "Jr" ((unsigned int)(value))); \
} while (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_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_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
*/
: "=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)
+
+#if 0 /* Need DSP ASE capable assembler ... */
+#define mflo0() ({ long mflo0; __asm__("mflo %0, $ac0" : "=r" (mflo0)); mflo0;})
+#define mflo1() ({ long mflo1; __asm__("mflo %0, $ac1" : "=r" (mflo1)); mflo1;})
+#define mflo2() ({ long mflo2; __asm__("mflo %0, $ac2" : "=r" (mflo2)); mflo2;})
+#define mflo3() ({ long mflo3; __asm__("mflo %0, $ac3" : "=r" (mflo3)); mflo3;})
+
+#define mfhi0() ({ long mfhi0; __asm__("mfhi %0, $ac0" : "=r" (mfhi0)); mfhi0;})
+#define mfhi1() ({ long mfhi1; __asm__("mfhi %0, $ac1" : "=r" (mfhi1)); mfhi1;})
+#define mfhi2() ({ long mfhi2; __asm__("mfhi %0, $ac2" : "=r" (mfhi2)); mfhi2;})
+#define mfhi3() ({ long mfhi3; __asm__("mfhi %0, $ac3" : "=r" (mfhi3)); mfhi3;})
+
+#define mtlo0(x) __asm__("mtlo %0, $ac0" ::"r" (x))
+#define mtlo1(x) __asm__("mtlo %0, $ac1" ::"r" (x))
+#define mtlo2(x) __asm__("mtlo %0, $ac2" ::"r" (x))
+#define mtlo3(x) __asm__("mtlo %0, $ac3" ::"r" (x))
+
+#define mthi0(x) __asm__("mthi %0, $ac0" ::"r" (x))
+#define mthi1(x) __asm__("mthi %0, $ac1" ::"r" (x))
+#define mthi2(x) __asm__("mthi %0, $ac2" ::"r" (x))
+#define mthi3(x) __asm__("mthi %0, $ac3" ::"r" (x))
+
+#else
+
+#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)
+
+#endif
+
/*
* TLB operations.
*
/*
* Manipulate bits in a c0 register.
*/
+#ifndef CONFIG_MIPS_MT_SMTC
+/*
+ * SMTC Linux requires shutting-down microthread scheduling
+ * during CP0 register read-modify-write sequences.
+ */
+#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; \
+}
+
+#else /* SMTC versions that manage MT scheduling */
+
+#include <asm/interrupt.h>
+
+/*
+ * This is a duplicate of dmt() in mipsmtregs.h to avoid problems with
+ * header file recursion.
+ */
+static inline unsigned int __dmt(void)
+{
+ int res;
+
+ __asm__ __volatile__(
+ " .set push \n"
+ " .set mips32r2 \n"
+ " .set noat \n"
+ " .word 0x41610BC1 # dmt $1 \n"
+ " ehb \n"
+ " move %0, $1 \n"
+ " .set pop \n"
+ : "=r" (res));
+
+ instruction_hazard();
+
+ return res;
+}
+
+#define __VPECONTROL_TE_SHIFT 15
+#define __VPECONTROL_TE (1UL << __VPECONTROL_TE_SHIFT)
+
+#define __EMT_ENABLE __VPECONTROL_TE
+
+static inline void __emt(unsigned int previous)
+{
+ if ((previous & __EMT_ENABLE))
+ __asm__ __volatile__(
+ " .set noreorder \n"
+ " .set mips32r2 \n"
+ " .word 0x41600be1 # emt \n"
+ " ehb \n"
+ " .set mips0 \n"
+ " .set reorder \n");
+}
+
+static inline void __ehb(void)
+{
+ __asm__ __volatile__(
+ " ehb \n");
+}
+
+/*
+ * Note that local_irq_save/restore affect TC-specific IXMT state,
+ * not Status.IE as in non-SMTC kernel.
+ */
+
#define __BUILD_SET_C0(name) \
static inline unsigned int \
set_c0_##name(unsigned int set) \
{ \
unsigned int res; \
+ unsigned int omt; \
+ unsigned int flags; \
\
+ local_irq_save(flags); \
+ omt = __dmt(); \
res = read_c0_##name(); \
res |= set; \
write_c0_##name(res); \
+ __emt(omt); \
+ local_irq_restore(flags); \
\
return res; \
} \
clear_c0_##name(unsigned int clear) \
{ \
unsigned int res; \
+ unsigned int omt; \
+ unsigned int flags; \
\
+ local_irq_save(flags); \
+ omt = __dmt(); \
res = read_c0_##name(); \
res &= ~clear; \
write_c0_##name(res); \
+ __emt(omt); \
+ local_irq_restore(flags); \
\
return res; \
} \
change_c0_##name(unsigned int change, unsigned int new) \
{ \
unsigned int res; \
+ unsigned int omt; \
+ unsigned int flags; \
\
+ local_irq_save(flags); \
+ \
+ omt = __dmt(); \
res = read_c0_##name(); \
res &= ~change; \
res |= (new & change); \
write_c0_##name(res); \
+ __emt(omt); \
+ local_irq_restore(flags); \
\
return res; \
}
+#endif
__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__ */
git://git.onelab.eu / linux-2.6.git / blobdiff