diff options
Diffstat (limited to 'arch/mips')
28 files changed, 371 insertions, 438 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 653574bc19cf..f4af967a6b30 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -327,7 +327,6 @@ config SGI_IP22 select IP22_CPU_SCACHE select IRQ_CPU select GENERIC_ISA_DMA_SUPPORT_BROKEN - select SGI_HAS_DS1286 select SGI_HAS_I8042 select SGI_HAS_INDYDOG select SGI_HAS_HAL2 @@ -382,7 +381,6 @@ config SGI_IP28 select HW_HAS_EISA select I8253 select I8259 - select SGI_HAS_DS1286 select SGI_HAS_I8042 select SGI_HAS_INDYDOG select SGI_HAS_HAL2 @@ -893,9 +891,6 @@ config EMMA2RH config SERIAL_RM9000 bool -config SGI_HAS_DS1286 - bool - config SGI_HAS_INDYDOG bool diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig index cc8e6bf2b245..f719bf5e01aa 100644 --- a/arch/mips/configs/ip22_defconfig +++ b/arch/mips/configs/ip22_defconfig @@ -771,7 +771,6 @@ CONFIG_WATCHDOG=y CONFIG_INDYDOG=m # CONFIG_HW_RANDOM is not set # CONFIG_RTC is not set -CONFIG_SGI_DS1286=m # CONFIG_R3964 is not set CONFIG_RAW_DRIVER=m CONFIG_MAX_RAW_DEVS=256 diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig index 831d3e5a1ea6..34ea319be94c 100644 --- a/arch/mips/configs/ip27_defconfig +++ b/arch/mips/configs/ip27_defconfig @@ -701,7 +701,6 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_WATCHDOG is not set CONFIG_HW_RANDOM=m # CONFIG_RTC is not set -CONFIG_SGI_IP27_RTC=y # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_DRM is not set diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig index 822b01f643e3..70a744e9a8c5 100644 --- a/arch/mips/configs/ip28_defconfig +++ b/arch/mips/configs/ip28_defconfig @@ -70,7 +70,6 @@ CONFIG_CPU_BIG_ENDIAN=y CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y CONFIG_IRQ_CPU=y CONFIG_SWAP_IO_SPACE=y -CONFIG_SGI_HAS_DS1286=y CONFIG_SGI_HAS_INDYDOG=y CONFIG_SGI_HAS_SEEQ=y CONFIG_SGI_HAS_WD93=y @@ -585,7 +584,6 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_IPMI_HANDLER is not set # CONFIG_HW_RANDOM is not set # CONFIG_RTC is not set -CONFIG_SGI_DS1286=y # CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h index 49df8c4c9d25..bac4a960b24c 100644 --- a/arch/mips/include/asm/bitops.h +++ b/arch/mips/include/asm/bitops.h @@ -558,39 +558,67 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long * __clear_bit(nr, addr); } -#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) - /* * Return the bit position (0..63) of the most significant 1 bit in a word * Returns -1 if no 1 bit exists */ -static inline unsigned long __fls(unsigned long x) +static inline unsigned long __fls(unsigned long word) { - int lz; + int num; - if (sizeof(x) == 4) { + if (BITS_PER_LONG == 32 && + __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) { __asm__( " .set push \n" " .set mips32 \n" " clz %0, %1 \n" " .set pop \n" - : "=r" (lz) - : "r" (x)); + : "=r" (num) + : "r" (word)); - return 31 - lz; + return 31 - num; } - BUG_ON(sizeof(x) != 8); + if (BITS_PER_LONG == 64 && + __builtin_constant_p(cpu_has_mips64) && cpu_has_mips64) { + __asm__( + " .set push \n" + " .set mips64 \n" + " dclz %0, %1 \n" + " .set pop \n" + : "=r" (num) + : "r" (word)); - __asm__( - " .set push \n" - " .set mips64 \n" - " dclz %0, %1 \n" - " .set pop \n" - : "=r" (lz) - : "r" (x)); + return 63 - num; + } + + num = BITS_PER_LONG - 1; - return 63 - lz; +#if BITS_PER_LONG == 64 + if (!(word & (~0ul << 32))) { + num -= 32; + word <<= 32; + } +#endif + if (!(word & (~0ul << (BITS_PER_LONG-16)))) { + num -= 16; + word <<= 16; + } + if (!(word & (~0ul << (BITS_PER_LONG-8)))) { + num -= 8; + word <<= 8; + } + if (!(word & (~0ul << (BITS_PER_LONG-4)))) { + num -= 4; + word <<= 4; + } + if (!(word & (~0ul << (BITS_PER_LONG-2)))) { + num -= 2; + word <<= 2; + } + if (!(word & (~0ul << (BITS_PER_LONG-1)))) + num -= 1; + return num; } /* @@ -612,23 +640,43 @@ static inline unsigned long __ffs(unsigned long word) * This is defined the same way as ffs. * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. */ -static inline int fls(int word) +static inline int fls(int x) { - __asm__("clz %0, %1" : "=r" (word) : "r" (word)); + int r; - return 32 - word; -} + if (__builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) { + __asm__("clz %0, %1" : "=r" (x) : "r" (x)); -#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPS64) -static inline int fls64(__u64 word) -{ - __asm__("dclz %0, %1" : "=r" (word) : "r" (word)); + return 32 - x; + } - return 64 - word; + r = 32; + if (!x) + return 0; + if (!(x & 0xffff0000u)) { + x <<= 16; + r -= 16; + } + if (!(x & 0xff000000u)) { + x <<= 8; + r -= 8; + } + if (!(x & 0xf0000000u)) { + x <<= 4; + r -= 4; + } + if (!(x & 0xc0000000u)) { + x <<= 2; + r -= 2; + } + if (!(x & 0x80000000u)) { + x <<= 1; + r -= 1; + } + return r; } -#else + #include <asm-generic/bitops/fls64.h> -#endif /* * ffs - find first bit set. @@ -646,16 +694,6 @@ static inline int ffs(int word) return fls(word & -word); } -#else - -#include <asm-generic/bitops/__ffs.h> -#include <asm-generic/bitops/__fls.h> -#include <asm-generic/bitops/ffs.h> -#include <asm-generic/bitops/fls.h> -#include <asm-generic/bitops/fls64.h> - -#endif /*defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) */ - #include <asm-generic/bitops/ffz.h> #include <asm-generic/bitops/find.h> diff --git a/arch/mips/include/asm/break.h b/arch/mips/include/asm/break.h index 25b980c91e7e..44437ed765e8 100644 --- a/arch/mips/include/asm/break.h +++ b/arch/mips/include/asm/break.h @@ -29,6 +29,7 @@ #define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */ #define BRK_BUG 512 /* Used by BUG() */ #define BRK_KDB 513 /* Used in KDB_ENTER() */ +#define BRK_MEMU 514 /* Used by FPU emulator */ #define BRK_MULOVF 1023 /* Multiply overflow */ #endif /* __ASM_BREAK_H */ diff --git a/arch/mips/include/asm/byteorder.h b/arch/mips/include/asm/byteorder.h index fe7dc2d59b69..2988d29a0867 100644 --- a/arch/mips/include/asm/byteorder.h +++ b/arch/mips/include/asm/byteorder.h @@ -11,11 +11,19 @@ #include <linux/compiler.h> #include <asm/types.h> -#ifdef __GNUC__ +#if defined(__MIPSEB__) +# define __BIG_ENDIAN +#elif defined(__MIPSEL__) +# define __LITTLE_ENDIAN +#else +# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???" +#endif + +#define __SWAB_64_THRU_32__ #ifdef CONFIG_CPU_MIPSR2 -static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) +static inline __attribute_const__ __u16 __arch_swab16(__u16 x) { __asm__( " wsbh %0, %1 \n" @@ -24,9 +32,9 @@ static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) return x; } -#define __arch__swab16(x) ___arch__swab16(x) +#define __arch_swab16 __arch_swab16 -static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) +static inline __attribute_const__ __u32 __arch_swab32(__u32 x) { __asm__( " wsbh %0, %1 \n" @@ -36,11 +44,10 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) return x; } -#define __arch__swab32(x) ___arch__swab32(x) +#define __arch_swab32 __arch_swab32 #ifdef CONFIG_CPU_MIPS64_R2 - -static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) +static inline __attribute_const__ __u64 __arch_swab64(__u64 x) { __asm__( " dsbh %0, %1 \n" @@ -51,26 +58,11 @@ static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) return x; } - -#define __arch__swab64(x) ___arch__swab64(x) - +#define __arch_swab64 __arch_swab64 #endif /* CONFIG_CPU_MIPS64_R2 */ #endif /* CONFIG_CPU_MIPSR2 */ -#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) -# define __BYTEORDER_HAS_U64__ -# define __SWAB_64_THRU_32__ -#endif - -#endif /* __GNUC__ */ - -#if defined(__MIPSEB__) -# include <linux/byteorder/big_endian.h> -#elif defined(__MIPSEL__) -# include <linux/byteorder/little_endian.h> -#else -# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???" -#endif +#include <linux/byteorder.h> #endif /* _ASM_BYTEORDER_H */ diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 5ea701fc3425..12d12dfe73c0 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -141,6 +141,8 @@ #define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2) #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1) #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2) +#define cpu_has_mips_r (cpu_has_mips32r1 | cpu_has_mips32r2 | \ + cpu_has_mips64r1 | cpu_has_mips64r2) #ifndef cpu_has_dsp #define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) diff --git a/arch/mips/include/asm/ds1286.h b/arch/mips/include/asm/ds1286.h deleted file mode 100644 index 6983b6ff0af3..000000000000 --- a/arch/mips/include/asm/ds1286.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * 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. - * - * Machine dependent access functions for RTC registers. - * - * Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org) - */ -#ifndef _ASM_DS1286_H -#define _ASM_DS1286_H - -#include <ds1286.h> - -#endif /* _ASM_DS1286_H */ diff --git a/arch/mips/include/asm/fpu_emulator.h b/arch/mips/include/asm/fpu_emulator.h index 2731c38bd7ae..e5189572956c 100644 --- a/arch/mips/include/asm/fpu_emulator.h +++ b/arch/mips/include/asm/fpu_emulator.h @@ -23,6 +23,9 @@ #ifndef _ASM_FPU_EMULATOR_H #define _ASM_FPU_EMULATOR_H +#include <asm/break.h> +#include <asm/inst.h> + struct mips_fpu_emulator_stats { unsigned int emulated; unsigned int loads; @@ -34,4 +37,18 @@ struct mips_fpu_emulator_stats { extern struct mips_fpu_emulator_stats fpuemustats; +extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, + unsigned long cpc); +extern int do_dsemulret(struct pt_regs *xcp); + +/* + * Instruction inserted following the badinst to further tag the sequence + */ +#define BD_COOKIE 0x0000bd36 /* tne $0, $0 with baggage */ + +/* + * Break instruction with special math emu break code set + */ +#define BREAK_MATH (0x0000000d | (BRK_MEMU << 16)) + #endif /* _ASM_FPU_EMULATOR_H */ diff --git a/arch/mips/include/asm/m48t35.h b/arch/mips/include/asm/m48t35.h deleted file mode 100644 index f44852e9a96d..000000000000 --- a/arch/mips/include/asm/m48t35.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Registers for the SGS-Thomson M48T35 Timekeeper RAM chip - */ -#ifndef _ASM_M48T35_H -#define _ASM_M48T35_H - -#include <linux/spinlock.h> - -extern spinlock_t rtc_lock; - -struct m48t35_rtc { - volatile u8 pad[0x7ff8]; /* starts at 0x7ff8 */ - volatile u8 control; - volatile u8 sec; - volatile u8 min; - volatile u8 hour; - volatile u8 day; - volatile u8 date; - volatile u8 month; - volatile u8 year; -}; - -#define M48T35_RTC_SET 0x80 -#define M48T35_RTC_STOPPED 0x80 -#define M48T35_RTC_READ 0x40 - -#endif /* _ASM_M48T35_H */ diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h index c8e554eafce3..b5cf6457305a 100644 --- a/arch/mips/include/asm/mach-rc32434/gpio.h +++ b/arch/mips/include/asm/mach-rc32434/gpio.h @@ -84,5 +84,7 @@ extern void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned extern unsigned get_434_reg(unsigned reg_offs); extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask); extern unsigned char get_latch_u5(void); +extern void rb532_gpio_set_ilevel(int bit, unsigned gpio); +extern void rb532_gpio_set_istat(int bit, unsigned gpio); #endif /* _RC32434_GPIO_H_ */ diff --git a/arch/mips/include/asm/mach-rc32434/rb.h b/arch/mips/include/asm/mach-rc32434/rb.h index 79e8ef67d0d3..f25a84916703 100644 --- a/arch/mips/include/asm/mach-rc32434/rb.h +++ b/arch/mips/include/asm/mach-rc32434/rb.h @@ -40,12 +40,14 @@ #define BTCS 0x010040 #define BTCOMPARE 0x010044 #define GPIOBASE 0x050000 -#define GPIOCFG 0x050004 -#define GPIOD 0x050008 -#define GPIOILEVEL 0x05000C -#define GPIOISTAT 0x050010 -#define GPIONMIEN 0x050014 -#define IMASK6 0x038038 +/* Offsets relative to GPIOBASE */ +#define GPIOFUNC 0x00 +#define GPIOCFG 0x04 +#define GPIOD 0x08 +#define GPIOILEVEL 0x0C +#define GPIOISTAT 0x10 +#define GPIONMIEN 0x14 +#define IMASK6 0x38 #define LO_WPX (1 << 0) #define LO_ALE (1 << 1) #define LO_CLE (1 << 2) diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h index d3bd5c5aa2ec..9601ea950542 100644 --- a/arch/mips/include/asm/time.h +++ b/arch/mips/include/asm/time.h @@ -63,7 +63,7 @@ static inline int mips_clockevent_init(void) /* * Initialize the count register as a clocksource */ -#ifdef CONFIG_CEVT_R4K +#ifdef CONFIG_CSRC_R4K extern int init_mips_clocksource(void); #else static inline int init_mips_clocksource(void) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 0cf15457ecac..c9207b5fd923 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -286,11 +286,12 @@ static inline int __cpu_has_fpu(void) #define R4K_OPTS (MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE \ | MIPS_CPU_COUNTER) -static inline void cpu_probe_legacy(struct cpuinfo_mips *c) +static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) { switch (c->processor_id & 0xff00) { case PRID_IMP_R2000: c->cputype = CPU_R2000; + __cpu_name[cpu] = "R2000"; c->isa_level = MIPS_CPU_ISA_I; c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE | MIPS_CPU_NOFPUEX; @@ -299,13 +300,19 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) c->tlbsize = 64; break; case PRID_IMP_R3000: - if ((c->processor_id & 0xff) == PRID_REV_R3000A) - if (cpu_has_confreg()) + if ((c->processor_id & 0xff) == PRID_REV_R3000A) { + if (cpu_has_confreg()) { c->cputype = CPU_R3081E; - else + __cpu_name[cpu] = "R3081"; + } else { c->cputype = CPU_R3000A; - else + __cpu_name[cpu] = "R3000A"; + } + break; + } else { c->cputype = CPU_R3000; + __cpu_name[cpu] = "R3000"; + } c->isa_level = MIPS_CPU_ISA_I; c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE | MIPS_CPU_NOFPUEX; @@ -315,15 +322,21 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R4000: if (read_c0_config() & CONF_SC) { - if ((c->processor_id & 0xff) >= PRID_REV_R4400) + if ((c->processor_id & 0xff) >= PRID_REV_R4400) { c->cputype = CPU_R4400PC; - else + __cpu_name[cpu] = "R4400PC"; + } else { c->cputype = CPU_R4000PC; + __cpu_name[cpu] = "R4000PC"; + } } else { - if ((c->processor_id & 0xff) >= PRID_REV_R4400) + if ((c->processor_id & 0xff) >= PRID_REV_R4400) { c->cputype = CPU_R4400SC; - else + __cpu_name[cpu] = "R4400SC"; + } else { c->cputype = CPU_R4000SC; + __cpu_name[cpu] = "R4000SC"; + } } c->isa_level = MIPS_CPU_ISA_III; @@ -336,25 +349,34 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) switch (c->processor_id & 0xf0) { case PRID_REV_VR4111: c->cputype = CPU_VR4111; + __cpu_name[cpu] = "NEC VR4111"; break; case PRID_REV_VR4121: c->cputype = CPU_VR4121; + __cpu_name[cpu] = "NEC VR4121"; break; case PRID_REV_VR4122: - if ((c->processor_id & 0xf) < 0x3) + if ((c->processor_id & 0xf) < 0x3) { c->cputype = CPU_VR4122; - else + __cpu_name[cpu] = "NEC VR4122"; + } else { c->cputype = CPU_VR4181A; + __cpu_name[cpu] = "NEC VR4181A"; + } break; case PRID_REV_VR4130: - if ((c->processor_id & 0xf) < 0x4) + if ((c->processor_id & 0xf) < 0x4) { c->cputype = CPU_VR4131; - else + __cpu_name[cpu] = "NEC VR4131"; + } else { c->cputype = CPU_VR4133; + __cpu_name[cpu] = "NEC VR4133"; + } break; default: printk(KERN_INFO "Unexpected CPU of NEC VR4100 series\n"); c->cputype = CPU_VR41XX; + __cpu_name[cpu] = "NEC Vr41xx"; break; } c->isa_level = MIPS_CPU_ISA_III; @@ -363,6 +385,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R4300: c->cputype = CPU_R4300; + __cpu_name[cpu] = "R4300"; c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_LLSC; @@ -370,6 +393,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R4600: c->cputype = CPU_R4600; + __cpu_name[cpu] = "R4600"; c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_LLSC; @@ -384,6 +408,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) * it's c0_prid id number with the TX3900. */ c->cputype = CPU_R4650; + __cpu_name[cpu] = "R4650"; c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_LLSC; c->tlbsize = 48; @@ -395,25 +420,26 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) { c->cputype = CPU_TX3927; + __cpu_name[cpu] = "TX3927"; c->tlbsize = 64; } else { switch (c->processor_id & 0xff) { case PRID_REV_TX3912: c->cputype = CPU_TX3912; + __cpu_name[cpu] = "TX3912"; c->tlbsize = 32; break; case PRID_REV_TX3922: c->cputype = CPU_TX3922; + __cpu_name[cpu] = "TX3922"; c->tlbsize = 64; break; - default: - c->cputype = CPU_UNKNOWN; - break; } } break; case PRID_IMP_R4700: c->cputype = CPU_R4700; + __cpu_name[cpu] = "R4700"; c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_LLSC; @@ -421,6 +447,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_TX49: c->cputype = CPU_TX49XX; + __cpu_name[cpu] = "R49XX"; c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_LLSC; if (!(c->processor_id & 0x08)) @@ -429,6 +456,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R5000: c->cputype = CPU_R5000; + __cpu_name[cpu] = "R5000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_LLSC; @@ -436,6 +464,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R5432: c->cputype = CPU_R5432; + __cpu_name[cpu] = "R5432"; c->isa_level = MIPS_CPU_ISA_IV; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_WATCH | MIPS_CPU_LLSC; @@ -443,6 +472,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R5500: c->cputype = CPU_R5500; + __cpu_name[cpu] = "R5500"; c->isa_level = MIPS_CPU_ISA_IV; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_WATCH | MIPS_CPU_LLSC; @@ -450,6 +480,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_NEVADA: c->cputype = CPU_NEVADA; + __cpu_name[cpu] = "Nevada"; c->isa_level = MIPS_CPU_ISA_IV; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_DIVEC | MIPS_CPU_LLSC; @@ -457,6 +488,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R6000: c->cputype = CPU_R6000; + __cpu_name[cpu] = "R6000"; c->isa_level = MIPS_CPU_ISA_II; c->options = MIPS_CPU_TLB | MIPS_CPU_FPU | MIPS_CPU_LLSC; @@ -464,6 +496,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R6000A: c->cputype = CPU_R6000A; + __cpu_name[cpu] = "R6000A"; c->isa_level = MIPS_CPU_ISA_II; c->options = MIPS_CPU_TLB | MIPS_CPU_FPU | MIPS_CPU_LLSC; @@ -471,6 +504,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_RM7000: c->cputype = CPU_RM7000; + __cpu_name[cpu] = "RM7000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_LLSC; @@ -486,6 +520,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_RM9000: c->cputype = CPU_RM9000; + __cpu_name[cpu] = "RM9000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | MIPS_CPU_LLSC; @@ -500,6 +535,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R8000: c->cputype = CPU_R8000; + __cpu_name[cpu] = "RM8000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_FPU | MIPS_CPU_32FPR | @@ -508,6 +544,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R10000: c->cputype = CPU_R10000; + __cpu_name[cpu] = "R10000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX | MIPS_CPU_FPU | MIPS_CPU_32FPR | @@ -517,6 +554,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R12000: c->cputype = CPU_R12000; + __cpu_name[cpu] = "R12000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX | MIPS_CPU_FPU | MIPS_CPU_32FPR | @@ -526,6 +564,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_R14000: c->cputype = CPU_R14000; + __cpu_name[cpu] = "R14000"; c->isa_level = MIPS_CPU_ISA_IV; c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX | MIPS_CPU_FPU | MIPS_CPU_32FPR | @@ -535,6 +574,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) break; case PRID_IMP_LOONGSON2: c->cputype = CPU_LOONGSON2; + __cpu_name[cpu] = "ICT Loongson-2"; c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_LLSC | @@ -652,21 +692,24 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c) static void __cpuinit decode_configs(struct cpuinfo_mips *c) { + int ok; + /* MIPS32 or MIPS64 compliant CPU. */ c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER | MIPS_CPU_DIVEC | MIPS_CPU_LLSC | MIPS_CPU_MCHECK; c->scache.flags = MIPS_CACHE_NOT_PRESENT; - /* Read Config registers. */ - if (!decode_config0(c)) - return; /* actually worth a panic() */ - if (!decode_config1(c)) - return; - if (!decode_config2(c)) - return; - if (!decode_config3(c)) - return; + ok = decode_config0(c); /* Read Config registers. */ + BUG_ON(!ok); /* Arch spec violation! */ + if (ok) + ok = decode_config1(c); + if (ok) + ok = decode_config2(c); + if (ok) + ok = decode_config3(c); + + mips_probe_watch_registers(c); } #ifdef CONFIG_CPU_MIPSR2 @@ -675,52 +718,62 @@ extern void spram_config(void); static inline void spram_config(void) {} #endif -static inline void cpu_probe_mips(struct cpuinfo_mips *c) +static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - mips_probe_watch_registers(c); switch (c->processor_id & 0xff00) { case PRID_IMP_4KC: c->cputype = CPU_4KC; + __cpu_name[cpu] = "MIPS 4Kc"; break; case PRID_IMP_4KEC: c->cputype = CPU_4KEC; + __cpu_name[cpu] = "MIPS 4KEc"; break; case PRID_IMP_4KECR2: c->cputype = CPU_4KEC; + __cpu_name[cpu] = "MIPS 4KEc"; break; case PRID_IMP_4KSC: case PRID_IMP_4KSD: c->cputype = CPU_4KSC; + __cpu_name[cpu] = "MIPS 4KSc"; break; case PRID_IMP_5KC: c->cputype = CPU_5KC; + __cpu_name[cpu] = "MIPS 5Kc"; break; case PRID_IMP_20KC: c->cputype = CPU_20KC; + __cpu_name[cpu] = "MIPS 20Kc"; break; case PRID_IMP_24K: case PRID_IMP_24KE: c->cputype = CPU_24K; + __cpu_name[cpu] = "MIPS 24Kc"; break; case PRID_IMP_25KF: c->cputype = CPU_25KF; + __cpu_name[cpu] = "MIPS 25Kc"; break; case PRID_IMP_34K: c->cputype = CPU_34K; + __cpu_name[cpu] = "MIPS 34Kc"; break; case PRID_IMP_74K: c->cputype = CPU_74K; + __cpu_name[cpu] = "MIPS 74Kc"; break; case PRID_IMP_1004K: c->cputype = CPU_1004K; + __cpu_name[cpu] = "MIPS 1004Kc"; break; } spram_config(); } -static inline void cpu_probe_alchemy(struct cpuinfo_mips *c) +static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { @@ -729,23 +782,31 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c) switch ((c->processor_id >> 24) & 0xff) { case 0: c->cputype = CPU_AU1000; + __cpu_name[cpu] = "Au1000"; break; case 1: c->cputype = CPU_AU1500; + __cpu_name[cpu] = "Au1500"; break; case 2: c->cputype = CPU_AU1100; + __cpu_name[cpu] = "Au1100"; break; case 3: c->cputype = CPU_AU1550; + __cpu_name[cpu] = "Au1550"; break; case 4: c->cputype = CPU_AU1200; - if (2 == (c->processor_id & 0xff)) + __cpu_name[cpu] = "Au1200"; + if ((c->processor_id & 0xff) == 2) { c->cputype = CPU_AU1250; + __cpu_name[cpu] = "Au1250"; + } break; case 5: c->cputype = CPU_AU1210; + __cpu_name[cpu] = "Au1210"; break; default: panic("Unknown Au Core!"); @@ -755,154 +816,67 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c) } } -static inline void cpu_probe_sibyte(struct cpuinfo_mips *c) +static inline void cpu_probe_sibyte(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { case PRID_IMP_SB1: c->cputype = CPU_SB1; + __cpu_name[cpu] = "SiByte SB1"; /* FPU in pass1 is known to have issues. */ if ((c->processor_id & 0xff) < 0x02) c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR); break; case PRID_IMP_SB1A: c->cputype = CPU_SB1A; + __cpu_name[cpu] = "SiByte SB1A"; break; } } -static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c) +static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { case PRID_IMP_SR71000: c->cputype = CPU_SR71000; + __cpu_name[cpu] = "Sandcraft SR71000"; c->scache.ways = 8; c->tlbsize = 64; break; } } -static inline void cpu_probe_nxp(struct cpuinfo_mips *c) +static inline void cpu_probe_nxp(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { case PRID_IMP_PR4450: c->cputype = CPU_PR4450; + __cpu_name[cpu] = "Philips PR4450"; c->isa_level = MIPS_CPU_ISA_M32R1; break; - default: - panic("Unknown NXP Core!"); /* REVISIT: die? */ - break; } } - -static inline void cpu_probe_broadcom(struct cpuinfo_mips *c) +static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { case PRID_IMP_BCM3302: c->cputype = CPU_BCM3302; + __cpu_name[cpu] = "Broadcom BCM3302"; break; case PRID_IMP_BCM4710: c->cputype = CPU_BCM4710; - break; - default: - c->cputype = CPU_UNKNOWN; + __cpu_name[cpu] = "Broadcom BCM4710"; break; } } const char *__cpu_name[NR_CPUS]; -/* - * Name a CPU - */ -static __cpuinit const char *cpu_to_name(struct cpuinfo_mips *c) -{ - const char *name = NULL; - - switch (c->cputype) { - case CPU_UNKNOWN: name = "unknown"; break; - case CPU_R2000: name = "R2000"; break; - case CPU_R3000: name = "R3000"; break; - case CPU_R3000A: name = "R3000A"; break; - case CPU_R3041: name = "R3041"; break; - case CPU_R3051: name = "R3051"; break; - case CPU_R3052: name = "R3052"; break; - case CPU_R3081: name = "R3081"; break; - case CPU_R3081E: name = "R3081E"; break; - case CPU_R4000PC: name = "R4000PC"; break; - case CPU_R4000SC: name = "R4000SC"; break; - case CPU_R4000MC: name = "R4000MC"; break; - case CPU_R4200: name = "R4200"; break; - case CPU_R4400PC: name = "R4400PC"; break; - case CPU_R4400SC: name = "R4400SC"; break; - case CPU_R4400MC: name = "R4400MC"; break; - case CPU_R4600: name = "R4600"; break; - case CPU_R6000: name = "R6000"; break; - case CPU_R6000A: name = "R6000A"; break; - case CPU_R8000: name = "R8000"; break; - case CPU_R10000: name = "R10000"; break; - case CPU_R12000: name = "R12000"; break; - case CPU_R14000: name = "R14000"; break; - case CPU_R4300: name = "R4300"; break; - case CPU_R4650: name = "R4650"; break; - case CPU_R4700: name = "R4700"; break; - case CPU_R5000: name = "R5000"; break; - case CPU_R5000A: name = "R5000A"; break; - case CPU_R4640: name = "R4640"; break; - case CPU_NEVADA: name = "Nevada"; break; - case CPU_RM7000: name = "RM7000"; break; - case CPU_RM9000: name = "RM9000"; break; - case CPU_R5432: name = "R5432"; break; - case CPU_4KC: name = "MIPS 4Kc"; break; - case CPU_5KC: name = "MIPS 5Kc"; break; - case CPU_R4310: name = "R4310"; break; - case CPU_SB1: name = "SiByte SB1"; break; - case CPU_SB1A: name = "SiByte SB1A"; break; - case CPU_TX3912: name = "TX3912"; break; - case CPU_TX3922: name = "TX3922"; break; - case CPU_TX3927: name = "TX3927"; break; - case CPU_AU1000: name = "Au1000"; break; - case CPU_AU1500: name = "Au1500"; break; - case CPU_AU1100: name = "Au1100"; break; - case CPU_AU1550: name = "Au1550"; break; - case CPU_AU1200: name = "Au1200"; break; - case CPU_AU1210: name = "Au1210"; break; - case CPU_AU1250: name = "Au1250"; break; - case CPU_4KEC: name = "MIPS 4KEc"; break; - case CPU_4KSC: name = "MIPS 4KSc"; break; - case CPU_VR41XX: name = "NEC Vr41xx"; break; - case CPU_R5500: name = "R5500"; break; - case CPU_TX49XX: name = "TX49xx"; break; - case CPU_20KC: name = "MIPS 20Kc"; break; - case CPU_24K: name = "MIPS 24K"; break; - case CPU_25KF: name = "MIPS 25Kf"; break; - case CPU_34K: name = "MIPS 34K"; break; - case CPU_1004K: name = "MIPS 1004K"; break; - case CPU_74K: name = "MIPS 74K"; break; - case CPU_VR4111: name = "NEC VR4111"; break; - case CPU_VR4121: name = "NEC VR4121"; break; - case CPU_VR4122: name = "NEC VR4122"; break; - case CPU_VR4131: name = "NEC VR4131"; break; - case CPU_VR4133: name = "NEC VR4133"; break; - case CPU_VR4181: name = "NEC VR4181"; break; - case CPU_VR4181A: name = "NEC VR4181A"; break; - case CPU_SR71000: name = "Sandcraft SR71000"; break; - case CPU_BCM3302: name = "Broadcom BCM3302"; break; - case CPU_BCM4710: name = "Broadcom BCM4710"; break; - case CPU_PR4450: name = "Philips PR4450"; break; - case CPU_LOONGSON2: name = "ICT Loongson-2"; break; - default: - BUG(); - } - - return name; -} - __cpuinit void cpu_probe(void) { struct cpuinfo_mips *c = ¤t_cpu_data; @@ -915,30 +889,31 @@ __cpuinit void cpu_probe(void) c->processor_id = read_c0_prid(); switch (c->processor_id & 0xff0000) { case PRID_COMP_LEGACY: - cpu_probe_legacy(c); + cpu_probe_legacy(c, cpu); break; case PRID_COMP_MIPS: - cpu_probe_mips(c); + cpu_probe_mips(c, cpu); break; case PRID_COMP_ALCHEMY: - cpu_probe_alchemy(c); + cpu_probe_alchemy(c, cpu); break; case PRID_COMP_SIBYTE: - cpu_probe_sibyte(c); + cpu_probe_sibyte(c, cpu); break; case PRID_COMP_BROADCOM: - cpu_probe_broadcom(c); + cpu_probe_broadcom(c, cpu); break; case PRID_COMP_SANDCRAFT: - cpu_probe_sandcraft(c); + cpu_probe_sandcraft(c, cpu); break; case PRID_COMP_NXP: - cpu_probe_nxp(c); + cpu_probe_nxp(c, cpu); break; - default: - c->cputype = CPU_UNKNOWN; } + BUG_ON(!__cpu_name[cpu]); + BUG_ON(c->cputype == CPU_UNKNOWN); + /* * Platform code can force the cpu type to optimize code * generation. In that case be sure the cpu type is correctly @@ -958,8 +933,6 @@ __cpuinit void cpu_probe(void) } } - __cpu_name[cpu] = cpu_to_name(c); - if (cpu_has_mips_r2) c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1; else diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c index 86e026f067bc..74fb74583b4e 100644 --- a/arch/mips/kernel/csrc-r4k.c +++ b/arch/mips/kernel/csrc-r4k.c @@ -27,7 +27,7 @@ int __init init_mips_clocksource(void) if (!cpu_has_counter || !mips_hpt_frequency) return -ENXIO; - /* Calclate a somewhat reasonable rating value */ + /* Calculate a somewhat reasonable rating value */ clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; clocksource_set_clock(&clocksource_mips, mips_hpt_frequency); diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index b79ea7055ec3..8bf88faf5afd 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -195,12 +195,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) /* preload SMP state for boot cpu */ void __devinit smp_prepare_boot_cpu(void) { - /* - * This assumes that bootup is always handled by the processor - * with the logic and physical number 0. - */ - __cpu_number_map[0] = 0; - __cpu_logical_map[0] = 0; cpu_set(0, phys_cpu_present_map); cpu_set(0, cpu_online_map); cpu_set(0, cpu_callin_map); diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 80b9e070c207..353056110f2b 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -32,6 +32,7 @@ #include <asm/cpu.h> #include <asm/dsp.h> #include <asm/fpu.h> +#include <asm/fpu_emulator.h> #include <asm/mipsregs.h> #include <asm/mipsmtregs.h> #include <asm/module.h> @@ -722,6 +723,21 @@ static void do_trap_or_bp(struct pt_regs *regs, unsigned int code, die_if_kernel("Kernel bug detected", regs); force_sig(SIGTRAP, current); break; + case BRK_MEMU: + /* + * Address errors may be deliberately induced by the FPU + * emulator to retake control of the CPU after executing the + * instruction in the delay slot of an emulated branch. + * + * Terminate if exception was recognized as a delay slot return + * otherwise handle as normal. + */ + if (do_dsemulret(regs)) + return; + + die_if_kernel("Math emu break/trap", regs); + force_sig(SIGTRAP, current); + break; default: scnprintf(b, sizeof(b), "%s instruction in kernel code", str); die_if_kernel(b, regs); @@ -1555,6 +1571,8 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr, #ifdef CONFIG_64BIT unsigned long uncached_ebase = TO_UNCAC(ebase); #endif + if (cpu_has_mips_r2) + ebase += (read_c0_ebase() & 0x3ffff000); if (!addr) panic(panic_null_cerr); @@ -1588,8 +1606,11 @@ void __init trap_init(void) if (cpu_has_veic || cpu_has_vint) ebase = (unsigned long) alloc_bootmem_low_pages(0x200 + VECTORSPACING*64); - else + else { ebase = CAC_BASE; + if (cpu_has_mips_r2) + ebase += (read_c0_ebase() & 0x3ffff000); + } per_cpu_trap_init(); @@ -1697,11 +1718,11 @@ void __init trap_init(void) if (cpu_has_vce) /* Special exception: R4[04]00 uses also the divec space. */ - memcpy((void *)(CAC_BASE + 0x180), &except_vec3_r4000, 0x100); + memcpy((void *)(ebase + 0x180), &except_vec3_r4000, 0x100); else if (cpu_has_4kex) - memcpy((void *)(CAC_BASE + 0x180), &except_vec3_generic, 0x80); + memcpy((void *)(ebase + 0x180), &except_vec3_generic, 0x80); else - memcpy((void *)(CAC_BASE + 0x080), &except_vec3_generic, 0x80); + memcpy((void *)(ebase + 0x080), &except_vec3_generic, 0x80); signal_init(); #ifdef CONFIG_MIPS32_COMPAT diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index 20709669e592..bf4c4a979abb 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c @@ -499,22 +499,10 @@ sigill: asmlinkage void do_ade(struct pt_regs *regs) { - extern int do_dsemulret(struct pt_regs *); unsigned int __user *pc; mm_segment_t seg; /* - * Address errors may be deliberately induced by the FPU emulator to - * retake control of the CPU after executing the instruction in the - * delay slot of an emulated branch. - */ - /* Terminate if exception was recognized as a delay slot return */ - if (do_dsemulret(regs)) - return; - - /* Otherwise handle as normal */ - - /* * Did we catch a fault trying to load an instruction? * Or are we running in MIPS16 mode? */ diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 7ec0b217dfd3..890f77927d62 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -48,7 +48,6 @@ #include <asm/branch.h> #include "ieee754.h" -#include "dsemul.h" /* Strap kernel emulator for full MIPS IV emulation */ @@ -346,9 +345,6 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) /* cop control register rd -> gpr[rt] */ u32 value; - if (ir == CP1UNDEF) { - return do_dsemulret(xcp); - } if (MIPSInst_RD(ir) == FPCREG_CSR) { value = ctx->fcr31; value = (value & ~0x3) | mips_rm[value & 0x3]; diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c index 653e325849e4..df7b9d928efc 100644 --- a/arch/mips/math-emu/dsemul.c +++ b/arch/mips/math-emu/dsemul.c @@ -18,7 +18,6 @@ #include <asm/fpu_emulator.h> #include "ieee754.h" -#include "dsemul.h" /* Strap kernel emulator for full MIPS IV emulation */ @@ -94,7 +93,7 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) return SIGBUS; err = __put_user(ir, &fr->emul); - err |= __put_user((mips_instruction)BADINST, &fr->badinst); + err |= __put_user((mips_instruction)BREAK_MATH, &fr->badinst); err |= __put_user((mips_instruction)BD_COOKIE, &fr->cookie); err |= __put_user(cpc, &fr->epc); @@ -130,13 +129,13 @@ int do_dsemulret(struct pt_regs *xcp) /* * Do some sanity checking on the stackframe: * - * - Is the instruction pointed to by the EPC an BADINST? + * - Is the instruction pointed to by the EPC an BREAK_MATH? * - Is the following memory word the BD_COOKIE? */ err = __get_user(insn, &fr->badinst); err |= __get_user(cookie, &fr->cookie); - if (unlikely(err || (insn != BADINST) || (cookie != BD_COOKIE))) { + if (unlikely(err || (insn != BREAK_MATH) || (cookie != BD_COOKIE))) { fpuemustats.errors++; return 0; } diff --git a/arch/mips/math-emu/dsemul.h b/arch/mips/math-emu/dsemul.h deleted file mode 100644 index 091f0e76730f..000000000000 --- a/arch/mips/math-emu/dsemul.h +++ /dev/null @@ -1,17 +0,0 @@ -extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc); -extern int do_dsemulret(struct pt_regs *xcp); - -/* Instruction which will always cause an address error */ -#define AdELOAD 0x8c000001 /* lw $0,1($0) */ -/* Instruction which will plainly cause a CP1 exception when FPU is disabled */ -#define CP1UNDEF 0x44400001 /* cfc1 $0,$0 undef */ - -/* Instruction inserted following the badinst to further tag the sequence */ -#define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */ - -/* Setup which instruction to use for trampoline */ -#ifdef STANDALONE_EMULATOR -#define BADINST CP1UNDEF -#else -#define BADINST AdELOAD -#endif diff --git a/arch/mips/mm/sc-ip22.c b/arch/mips/mm/sc-ip22.c index 1f602a110e10..13adb5782110 100644 --- a/arch/mips/mm/sc-ip22.c +++ b/arch/mips/mm/sc-ip22.c @@ -161,7 +161,7 @@ static inline int __init indy_sc_probe(void) /* XXX Check with wje if the Indy caches can differenciate between writeback + invalidate and just invalidate. */ -struct bcache_ops indy_sc_ops = { +static struct bcache_ops indy_sc_ops = { .bc_enable = indy_sc_enable, .bc_disable = indy_sc_disable, .bc_wback_inv = indy_sc_wback_invalidate, diff --git a/arch/mips/mti-malta/malta-amon.c b/arch/mips/mti-malta/malta-amon.c index 96236bf33838..df9e526312a2 100644 --- a/arch/mips/mti-malta/malta-amon.c +++ b/arch/mips/mti-malta/malta-amon.c @@ -22,9 +22,9 @@ #include <linux/init.h> #include <linux/smp.h> -#include <asm-mips/addrspace.h> -#include <asm-mips/mips-boards/launch.h> -#include <asm-mips/mipsmtregs.h> +#include <asm/addrspace.h> +#include <asm/mips-boards/launch.h> +#include <asm/mipsmtregs.h> int amon_cpu_avail(int cpu) { diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c index 2f22d714d5b0..c1c29181bd46 100644 --- a/arch/mips/rb532/devices.c +++ b/arch/mips/rb532/devices.c @@ -118,7 +118,7 @@ static struct platform_device cf_slot0 = { /* Resources and device for NAND */ static int rb532_dev_ready(struct mtd_info *mtd) { - return readl(IDT434_REG_BASE + GPIOD) & GPIO_RDY; + return gpio_get_value(GPIO_RDY); } static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c index 70c4a6726377..0e84c8ab6a39 100644 --- a/arch/mips/rb532/gpio.c +++ b/arch/mips/rb532/gpio.c @@ -39,10 +39,6 @@ struct rb532_gpio_chip { struct gpio_chip chip; void __iomem *regbase; - void (*set_int_level)(struct gpio_chip *chip, unsigned offset, int value); - int (*get_int_level)(struct gpio_chip *chip, unsigned offset); - void (*set_int_status)(struct gpio_chip *chip, unsigned offset, int value); - int (*get_int_status)(struct gpio_chip *chip, unsigned offset); }; struct mpmc_device dev3; @@ -111,15 +107,47 @@ unsigned char get_latch_u5(void) } EXPORT_SYMBOL(get_latch_u5); +/* rb532_set_bit - sanely set a bit + * + * bitval: new value for the bit + * offset: bit index in the 4 byte address range + * ioaddr: 4 byte aligned address being altered + */ +static inline void rb532_set_bit(unsigned bitval, + unsigned offset, void __iomem *ioaddr) +{ + unsigned long flags; + u32 val; + + bitval = !!bitval; /* map parameter to {0,1} */ + + local_irq_save(flags); + + val = readl(ioaddr); + val &= ~( ~bitval << offset ); /* unset bit if bitval == 0 */ + val |= ( bitval << offset ); /* set bit if bitval == 1 */ + writel(val, ioaddr); + + local_irq_restore(flags); +} + +/* rb532_get_bit - read a bit + * + * returns the boolean state of the bit, which may be > 1 + */ +static inline int rb532_get_bit(unsigned offset, void __iomem *ioaddr) +{ + return (readl(ioaddr) & (1 << offset)); +} + /* * Return GPIO level */ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset) { - u32 mask = 1 << offset; struct rb532_gpio_chip *gpch; gpch = container_of(chip, struct rb532_gpio_chip, chip); - return readl(gpch->regbase + GPIOD) & mask; + return rb532_get_bit(offset, gpch->regbase + GPIOD); } /* @@ -128,23 +156,10 @@ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset) static void rb532_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { - unsigned long flags; - u32 mask = 1 << offset; - u32 tmp; struct rb532_gpio_chip *gpch; - void __iomem *gpvr; gpch = container_of(chip, struct rb532_gpio_chip, chip); - gpvr = gpch->regbase + GPIOD; - - local_irq_save(flags); - tmp = readl(gpvr); - if (value) - tmp |= mask; - else - tmp &= ~mask; - writel(tmp, gpvr); - local_irq_restore(flags); + rb532_set_bit(value, offset, gpch->regbase + GPIOD); } /* @@ -152,21 +167,14 @@ static void rb532_gpio_set(struct gpio_chip *chip, */ static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { - unsigned long flags; - u32 mask = 1 << offset; - u32 value; struct rb532_gpio_chip *gpch; - void __iomem *gpdr; gpch = container_of(chip, struct rb532_gpio_chip, chip); - gpdr = gpch->regbase + GPIOCFG; - local_irq_save(flags); - value = readl(gpdr); - value &= ~mask; - writel(value, gpdr); - local_irq_restore(flags); + if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC)) + return 1; /* alternate function, GPIOCFG is ignored */ + rb532_set_bit(0, offset, gpch->regbase + GPIOCFG); return 0; } @@ -176,117 +184,60 @@ static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset) static int rb532_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int value) { - unsigned long flags; - u32 mask = 1 << offset; - u32 tmp; struct rb532_gpio_chip *gpch; - void __iomem *gpdr; gpch = container_of(chip, struct rb532_gpio_chip, chip); - writel(mask, gpch->regbase + GPIOD); - gpdr = gpch->regbase + GPIOCFG; - local_irq_save(flags); - tmp = readl(gpdr); - tmp |= mask; - writel(tmp, gpdr); - local_irq_restore(flags); + if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC)) + return 1; /* alternate function, GPIOCFG is ignored */ + /* set the initial output value */ + rb532_set_bit(value, offset, gpch->regbase + GPIOD); + + rb532_set_bit(1, offset, gpch->regbase + GPIOCFG); return 0; } -/* - * Set the GPIO interrupt level - */ -static void rb532_gpio_set_int_level(struct gpio_chip *chip, - unsigned offset, int value) -{ - unsigned long flags; - u32 mask = 1 << offset; - u32 tmp; - struct rb532_gpio_chip *gpch; - void __iomem *gpil; - - gpch = container_of(chip, struct rb532_gpio_chip, chip); - gpil = gpch->regbase + GPIOILEVEL; - - local_irq_save(flags); - tmp = readl(gpil); - if (value) - tmp |= mask; - else - tmp &= ~mask; - writel(tmp, gpil); - local_irq_restore(flags); -} +static struct rb532_gpio_chip rb532_gpio_chip[] = { + [0] = { + .chip = { + .label = "gpio0", + .direction_input = rb532_gpio_direction_input, + .direction_output = rb532_gpio_direction_output, + .get = rb532_gpio_get, + .set = rb532_gpio_set, + .base = 0, + .ngpio = 32, + }, + }, +}; /* - * Get the GPIO interrupt level + * Set GPIO interrupt level */ -static int rb532_gpio_get_int_level(struct gpio_chip *chip, unsigned offset) +void rb532_gpio_set_ilevel(int bit, unsigned gpio) { - u32 mask = 1 << offset; - struct rb532_gpio_chip *gpch; - - gpch = container_of(chip, struct rb532_gpio_chip, chip); - return readl(gpch->regbase + GPIOILEVEL) & mask; + rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOILEVEL); } +EXPORT_SYMBOL(rb532_gpio_set_ilevel); /* - * Set the GPIO interrupt status + * Set GPIO interrupt status */ -static void rb532_gpio_set_int_status(struct gpio_chip *chip, - unsigned offset, int value) +void rb532_gpio_set_istat(int bit, unsigned gpio) { - unsigned long flags; - u32 mask = 1 << offset; - u32 tmp; - struct rb532_gpio_chip *gpch; - void __iomem *gpis; - - gpch = container_of(chip, struct rb532_gpio_chip, chip); - gpis = gpch->regbase + GPIOISTAT; - - local_irq_save(flags); - tmp = readl(gpis); - if (value) - tmp |= mask; - else - tmp &= ~mask; - writel(tmp, gpis); - local_irq_restore(flags); + rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOISTAT); } +EXPORT_SYMBOL(rb532_gpio_set_istat); /* - * Get the GPIO interrupt status + * Configure GPIO alternate function */ -static int rb532_gpio_get_int_status(struct gpio_chip *chip, unsigned offset) +static void rb532_gpio_set_func(int bit, unsigned gpio) { - u32 mask = 1 << offset; - struct rb532_gpio_chip *gpch; - - gpch = container_of(chip, struct rb532_gpio_chip, chip); - return readl(gpch->regbase + GPIOISTAT) & mask; + rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOFUNC); } -static struct rb532_gpio_chip rb532_gpio_chip[] = { - [0] = { - .chip = { - .label = "gpio0", - .direction_input = rb532_gpio_direction_input, - .direction_output = rb532_gpio_direction_output, - .get = rb532_gpio_get, - .set = rb532_gpio_set, - .base = 0, - .ngpio = 32, - }, - .get_int_level = rb532_gpio_get_int_level, - .set_int_level = rb532_gpio_set_int_level, - .get_int_status = rb532_gpio_get_int_status, - .set_int_status = rb532_gpio_set_int_status, - }, -}; - int __init rb532_gpio_init(void) { struct resource *r; @@ -310,9 +261,11 @@ int __init rb532_gpio_init(void) return -ENXIO; } - /* Set the interrupt status and level for the CF pin */ - rb532_gpio_set_int_level(&rb532_gpio_chip->chip, CF_GPIO_NUM, 1); - rb532_gpio_set_int_status(&rb532_gpio_chip->chip, CF_GPIO_NUM, 0); + /* configure CF_GPIO_NUM as CFRDY IRQ source */ + rb532_gpio_set_func(0, CF_GPIO_NUM); + rb532_gpio_direction_input(&rb532_gpio_chip->chip, CF_GPIO_NUM); + rb532_gpio_set_ilevel(1, CF_GPIO_NUM); + rb532_gpio_set_istat(0, CF_GPIO_NUM); return 0; } diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c index 4a74423b2ba8..01129a9d50fa 100644 --- a/arch/mips/txx9/rbtx4927/setup.c +++ b/arch/mips/txx9/rbtx4927/setup.c @@ -49,6 +49,7 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/gpio.h> +#include <linux/leds.h> #include <asm/io.h> #include <asm/reboot.h> #include <asm/txx9/generic.h> @@ -210,10 +211,6 @@ static void __init rbtx4927_mem_setup(void) /* TX4927-SIO DTR on (PIO[15]) */ gpio_request(15, "sio-dtr"); gpio_direction_output(15, 1); - gpio_request(0, "led"); - gpio_direction_output(0, 1); - gpio_request(1, "led"); - gpio_direction_output(1, 1); tx4927_sio_init(0, 0); #ifdef CONFIG_SERIAL_TXX9_CONSOLE @@ -315,6 +312,25 @@ static void __init rbtx4927_mtd_init(void) tx4927_mtd_init(i); } +static void __init rbtx4927_gpioled_init(void) +{ + static struct gpio_led leds[] = { + { .name = "gpioled:green:0", .gpio = 0, .active_low = 1, }, + { .name = "gpioled:green:1", .gpio = 1, .active_low = 1, }, + }; + static struct gpio_led_platform_data pdata = { + .num_leds = ARRAY_SIZE(leds), + .leds = leds, + }; + struct platform_device *pdev = platform_device_alloc("leds-gpio", 0); + + if (!pdev) + return; + pdev->dev.platform_data = &pdata; + if (platform_device_add(pdev)) + platform_device_put(pdev); +} + static void __init rbtx4927_device_init(void) { toshiba_rbtx4927_rtc_init(); @@ -322,6 +338,7 @@ static void __init rbtx4927_device_init(void) tx4927_wdt_init(); rbtx4927_mtd_init(); txx9_iocled_init(RBTX4927_LED_ADDR - IO_BASE, -1, 3, 1, "green", NULL); + rbtx4927_gpioled_init(); } struct txx9_board_vec rbtx4927_vec __initdata = { diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c index 6daee9b1cd5e..98fbd9391bf8 100644 --- a/arch/mips/txx9/rbtx4939/setup.c +++ b/arch/mips/txx9/rbtx4939/setup.c @@ -308,16 +308,22 @@ static void __init rbtx4939_device_init(void) #if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE) int i, j; unsigned char ethaddr[2][6]; + u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f; + for (i = 0; i < 2; i++) { unsigned long area = CKSEG1 + 0x1fff0000 + (i * 0x10); - if (readb(rbtx4939_bdipsw_addr) & 8) { + if (bdipsw == 0) + memcpy(ethaddr[i], (void *)area, 6); + else { u16 buf[3]; - area -= 0x03000000; + if (bdipsw & 8) + area -= 0x03000000; + else + area -= 0x01000000; for (j = 0; j < 3; j++) buf[j] = le16_to_cpup((u16 *)(area + j * 2)); memcpy(ethaddr[i], buf, 6); - } else - memcpy(ethaddr[i], (void *)area, 6); + } } tx4939_ethaddr_init(ethaddr[0], ethaddr[1]); #endif |