diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-sh/atomic-irq.h | 71 | ||||
-rw-r--r-- | include/asm-sh/atomic-llsc.h | 107 | ||||
-rw-r--r-- | include/asm-sh/atomic.h | 153 | ||||
-rw-r--r-- | include/asm-sh/bug.h | 53 | ||||
-rw-r--r-- | include/asm-sh/bugs.h | 12 | ||||
-rw-r--r-- | include/asm-sh/checksum.h | 69 | ||||
-rw-r--r-- | include/asm-sh/cpu-sh4/cache.h | 2 | ||||
-rw-r--r-- | include/asm-sh/cpu-sh4/freq.h | 2 | ||||
-rw-r--r-- | include/asm-sh/dma-mapping.h | 10 | ||||
-rw-r--r-- | include/asm-sh/irq.h | 5 | ||||
-rw-r--r-- | include/asm-sh/pgtable.h | 47 | ||||
-rw-r--r-- | include/asm-sh/processor.h | 8 | ||||
-rw-r--r-- | include/asm-sh/push-switch.h | 3 |
13 files changed, 329 insertions, 213 deletions
diff --git a/include/asm-sh/atomic-irq.h b/include/asm-sh/atomic-irq.h new file mode 100644 index 000000000000..74f7943cff6f --- /dev/null +++ b/include/asm-sh/atomic-irq.h @@ -0,0 +1,71 @@ +#ifndef __ASM_SH_ATOMIC_IRQ_H +#define __ASM_SH_ATOMIC_IRQ_H + +/* + * To get proper branch prediction for the main line, we must branch + * forward to code at the end of this object's .text section, then + * branch back to restart the operation. + */ +static inline void atomic_add(int i, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v += i; + local_irq_restore(flags); +} + +static inline void atomic_sub(int i, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v -= i; + local_irq_restore(flags); +} + +static inline int atomic_add_return(int i, atomic_t *v) +{ + unsigned long temp, flags; + + local_irq_save(flags); + temp = *(long *)v; + temp += i; + *(long *)v = temp; + local_irq_restore(flags); + + return temp; +} + +static inline int atomic_sub_return(int i, atomic_t *v) +{ + unsigned long temp, flags; + + local_irq_save(flags); + temp = *(long *)v; + temp -= i; + *(long *)v = temp; + local_irq_restore(flags); + + return temp; +} + +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v &= ~mask; + local_irq_restore(flags); +} + +static inline void atomic_set_mask(unsigned int mask, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v |= mask; + local_irq_restore(flags); +} + +#endif /* __ASM_SH_ATOMIC_IRQ_H */ diff --git a/include/asm-sh/atomic-llsc.h b/include/asm-sh/atomic-llsc.h new file mode 100644 index 000000000000..4b00b78e3f4f --- /dev/null +++ b/include/asm-sh/atomic-llsc.h @@ -0,0 +1,107 @@ +#ifndef __ASM_SH_ATOMIC_LLSC_H +#define __ASM_SH_ATOMIC_LLSC_H + +/* + * To get proper branch prediction for the main line, we must branch + * forward to code at the end of this object's .text section, then + * branch back to restart the operation. + */ +static inline void atomic_add(int i, atomic_t *v) +{ + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%2, %0 ! atomic_add \n" +" add %1, %0 \n" +" movco.l %0, @%2 \n" +" bf 1b \n" + : "=&z" (tmp) + : "r" (i), "r" (&v->counter) + : "t"); +} + +static inline void atomic_sub(int i, atomic_t *v) +{ + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%2, %0 ! atomic_sub \n" +" sub %1, %0 \n" +" movco.l %0, @%2 \n" +" bf 1b \n" + : "=&z" (tmp) + : "r" (i), "r" (&v->counter) + : "t"); +} + +/* + * SH-4A note: + * + * We basically get atomic_xxx_return() for free compared with + * atomic_xxx(). movli.l/movco.l require r0 due to the instruction + * encoding, so the retval is automatically set without having to + * do any special work. + */ +static inline int atomic_add_return(int i, atomic_t *v) +{ + unsigned long temp; + + __asm__ __volatile__ ( +"1: movli.l @%2, %0 ! atomic_add_return \n" +" add %1, %0 \n" +" movco.l %0, @%2 \n" +" bf 1b \n" +" synco \n" + : "=&z" (temp) + : "r" (i), "r" (&v->counter) + : "t"); + + return temp; +} + +static inline int atomic_sub_return(int i, atomic_t *v) +{ + unsigned long temp; + + __asm__ __volatile__ ( +"1: movli.l @%2, %0 ! atomic_sub_return \n" +" sub %1, %0 \n" +" movco.l %0, @%2 \n" +" bf 1b \n" +" synco \n" + : "=&z" (temp) + : "r" (i), "r" (&v->counter) + : "t"); + + return temp; +} + +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) +{ + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%2, %0 ! atomic_clear_mask \n" +" and %1, %0 \n" +" movco.l %0, @%2 \n" +" bf 1b \n" + : "=&z" (tmp) + : "r" (~mask), "r" (&v->counter) + : "t"); +} + +static inline void atomic_set_mask(unsigned int mask, atomic_t *v) +{ + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%2, %0 ! atomic_set_mask \n" +" or %1, %0 \n" +" movco.l %0, @%2 \n" +" bf 1b \n" + : "=&z" (tmp) + : "r" (mask), "r" (&v->counter) + : "t"); +} + +#endif /* __ASM_SH_ATOMIC_LLSC_H */ diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h index 28305c3cbddf..e12570b9339d 100644 --- a/include/asm-sh/atomic.h +++ b/include/asm-sh/atomic.h @@ -17,119 +17,14 @@ typedef struct { volatile int counter; } atomic_t; #include <linux/compiler.h> #include <asm/system.h> -/* - * To get proper branch prediction for the main line, we must branch - * forward to code at the end of this object's .text section, then - * branch back to restart the operation. - */ -static inline void atomic_add(int i, atomic_t *v) -{ #ifdef CONFIG_CPU_SH4A - unsigned long tmp; - - __asm__ __volatile__ ( -"1: movli.l @%2, %0 ! atomic_add \n" -" add %1, %0 \n" -" movco.l %0, @%2 \n" -" bf 1b \n" - : "=&z" (tmp) - : "r" (i), "r" (&v->counter) - : "t"); +#include <asm/atomic-llsc.h> #else - unsigned long flags; - - local_irq_save(flags); - *(long *)v += i; - local_irq_restore(flags); -#endif -} - -static inline void atomic_sub(int i, atomic_t *v) -{ -#ifdef CONFIG_CPU_SH4A - unsigned long tmp; - - __asm__ __volatile__ ( -"1: movli.l @%2, %0 ! atomic_sub \n" -" sub %1, %0 \n" -" movco.l %0, @%2 \n" -" bf 1b \n" - : "=&z" (tmp) - : "r" (i), "r" (&v->counter) - : "t"); -#else - unsigned long flags; - - local_irq_save(flags); - *(long *)v -= i; - local_irq_restore(flags); +#include <asm/atomic-irq.h> #endif -} - -/* - * SH-4A note: - * - * We basically get atomic_xxx_return() for free compared with - * atomic_xxx(). movli.l/movco.l require r0 due to the instruction - * encoding, so the retval is automatically set without having to - * do any special work. - */ -static inline int atomic_add_return(int i, atomic_t *v) -{ - unsigned long temp; - -#ifdef CONFIG_CPU_SH4A - __asm__ __volatile__ ( -"1: movli.l @%2, %0 ! atomic_add_return \n" -" add %1, %0 \n" -" movco.l %0, @%2 \n" -" bf 1b \n" -" synco \n" - : "=&z" (temp) - : "r" (i), "r" (&v->counter) - : "t"); -#else - unsigned long flags; - - local_irq_save(flags); - temp = *(long *)v; - temp += i; - *(long *)v = temp; - local_irq_restore(flags); -#endif - - return temp; -} #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) -static inline int atomic_sub_return(int i, atomic_t *v) -{ - unsigned long temp; - -#ifdef CONFIG_CPU_SH4A - __asm__ __volatile__ ( -"1: movli.l @%2, %0 ! atomic_sub_return \n" -" sub %1, %0 \n" -" movco.l %0, @%2 \n" -" bf 1b \n" -" synco \n" - : "=&z" (temp) - : "r" (i), "r" (&v->counter) - : "t"); -#else - unsigned long flags; - - local_irq_save(flags); - temp = *(long *)v; - temp -= i; - *(long *)v = temp; - local_irq_restore(flags); -#endif - - return temp; -} - #define atomic_dec_return(v) atomic_sub_return(1,(v)) #define atomic_inc_return(v) atomic_add_return(1,(v)) @@ -180,50 +75,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u) } #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) -{ -#ifdef CONFIG_CPU_SH4A - unsigned long tmp; - - __asm__ __volatile__ ( -"1: movli.l @%2, %0 ! atomic_clear_mask \n" -" and %1, %0 \n" -" movco.l %0, @%2 \n" -" bf 1b \n" - : "=&z" (tmp) - : "r" (~mask), "r" (&v->counter) - : "t"); -#else - unsigned long flags; - - local_irq_save(flags); - *(long *)v &= ~mask; - local_irq_restore(flags); -#endif -} - -static inline void atomic_set_mask(unsigned int mask, atomic_t *v) -{ -#ifdef CONFIG_CPU_SH4A - unsigned long tmp; - - __asm__ __volatile__ ( -"1: movli.l @%2, %0 ! atomic_set_mask \n" -" or %1, %0 \n" -" movco.l %0, @%2 \n" -" bf 1b \n" - : "=&z" (tmp) - : "r" (mask), "r" (&v->counter) - : "t"); -#else - unsigned long flags; - - local_irq_save(flags); - *(long *)v |= mask; - local_irq_restore(flags); -#endif -} - /* Atomic operations are already serializing on SH */ #define smp_mb__before_atomic_dec() barrier() #define smp_mb__after_atomic_dec() barrier() diff --git a/include/asm-sh/bug.h b/include/asm-sh/bug.h index 1b4fc52a59e8..2f89dd06d0cd 100644 --- a/include/asm-sh/bug.h +++ b/include/asm-sh/bug.h @@ -1,19 +1,54 @@ #ifndef __ASM_SH_BUG_H #define __ASM_SH_BUG_H - #ifdef CONFIG_BUG -/* - * Tell the user there is some problem. - */ -#define BUG() do { \ - printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \ - *(volatile int *)0 = 0; \ + +struct bug_frame { + unsigned short opcode; + unsigned short line; + const char *file; + const char *func; +}; + +struct pt_regs; + +extern void handle_BUG(struct pt_regs *); + +#define TRAPA_BUG_OPCODE 0xc33e /* trapa #0x3e */ + +#ifdef CONFIG_DEBUG_BUGVERBOSE + +#define BUG() \ +do { \ + __asm__ __volatile__ ( \ + ".align 2\n\t" \ + ".short %O0\n\t" \ + ".short %O1\n\t" \ + ".long %O2\n\t" \ + ".long %O3\n\t" \ + : \ + : "n" (TRAPA_BUG_OPCODE), \ + "i" (__LINE__), "X" (__FILE__), \ + "X" (__FUNCTION__)); \ +} while (0) + +#else + +#define BUG() \ +do { \ + __asm__ __volatile__ ( \ + ".align 2\n\t" \ + ".short %O0\n\t" \ + : \ + : "n" (TRAPA_BUG_OPCODE)); \ } while (0) +#endif /* CONFIG_DEBUG_BUGVERBOSE */ + #define HAVE_ARCH_BUG -#endif + +#endif /* CONFIG_BUG */ #include <asm-generic/bug.h> -#endif +#endif /* __ASM_SH_BUG_H */ diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h index 795047da5e17..a294997a8412 100644 --- a/include/asm-sh/bugs.h +++ b/include/asm-sh/bugs.h @@ -16,9 +16,8 @@ static void __init check_bugs(void) { - extern char *get_cpu_subtype(void); extern unsigned long loops_per_jiffy; - char *p= &init_utsname()->machine[2]; /* "sh" */ + char *p = &init_utsname()->machine[2]; /* "sh" */ cpu_data->loops_per_jiffy = loops_per_jiffy; @@ -40,6 +39,15 @@ static void __init check_bugs(void) *p++ = '4'; *p++ = 'a'; break; + case CPU_SH73180 ... CPU_SH7722: + *p++ = '4'; + *p++ = 'a'; + *p++ = 'l'; + *p++ = '-'; + *p++ = 'd'; + *p++ = 's'; + *p++ = 'p'; + break; default: *p++ = '?'; *p++ = '!'; diff --git a/include/asm-sh/checksum.h b/include/asm-sh/checksum.h index d44344c88e73..4bc8357e8892 100644 --- a/include/asm-sh/checksum.h +++ b/include/asm-sh/checksum.h @@ -34,25 +34,26 @@ asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum); */ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst, - int len, __wsum sum, int *src_err_ptr, int *dst_err_ptr); + int len, __wsum sum, + int *src_err_ptr, int *dst_err_ptr); /* * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. - * - * If you use these functions directly please don't forget the + * passed in an incorrect kernel address to one of these functions. + * + * If you use these functions directly please don't forget the * access_ok(). */ -static __inline__ +static inline __wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum) + int len, __wsum sum) { - return csum_partial_copy_generic ( src, dst, len, sum, NULL, NULL); + return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL); } -static __inline__ +static inline __wsum csum_partial_copy_from_user(const void __user *src, void *dst, - int len, __wsum sum, int *err_ptr) + int len, __wsum sum, int *err_ptr) { return csum_partial_copy_generic((__force const void *)src, dst, len, sum, err_ptr, NULL); @@ -62,7 +63,7 @@ __wsum csum_partial_copy_from_user(const void __user *src, void *dst, * Fold a partial checksum */ -static __inline__ __sum16 csum_fold(__wsum sum) +static inline __sum16 csum_fold(__wsum sum) { unsigned int __dummy; __asm__("swap.w %0, %1\n\t" @@ -85,7 +86,7 @@ static __inline__ __sum16 csum_fold(__wsum sum) * i386 version by Jorge Cwik <jorge@laser.satlink.net>, adapted * for linux by * Arnt Gulbrandsen. */ -static __inline__ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) +static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl) { unsigned int sum, __dummy0, __dummy1; @@ -113,10 +114,10 @@ static __inline__ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) return csum_fold(sum); } -static __inline__ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) +static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, + unsigned short len, + unsigned short proto, + __wsum sum) { #ifdef __LITTLE_ENDIAN__ unsigned long len_proto = (proto + len) << 8; @@ -132,6 +133,7 @@ static __inline__ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, : "=r" (sum), "=r" (len_proto) : "r" (daddr), "r" (saddr), "1" (len_proto), "0" (sum) : "t"); + return sum; } @@ -139,30 +141,28 @@ static __inline__ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, * computes the checksum of the TCP/UDP pseudo-header * returns a 16-bit checksum, already complemented */ -static __inline__ __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) +static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, + unsigned short len, + unsigned short proto, + __wsum sum) { - return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); + return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); } /* * this routine is used for miscellaneous IP-like checksums, mainly * in icmp.c */ - -static __inline__ __sum16 ip_compute_csum(const void *buff, int len) +static inline __sum16 ip_compute_csum(const void *buff, int len) { - return csum_fold (csum_partial(buff, len, 0)); + return csum_fold(csum_partial(buff, len, 0)); } #define _HAVE_ARCH_IPV6_CSUM -#ifdef CONFIG_IPV6 -static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr, - const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum) +static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u32 len, unsigned short proto, + __wsum sum) { unsigned int __dummy; __asm__("clrt\n\t" @@ -187,22 +187,21 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr, "movt %1\n\t" "add %1, %0\n" : "=r" (sum), "=&r" (__dummy) - : "r" (saddr), "r" (daddr), + : "r" (saddr), "r" (daddr), "r" (htonl(len)), "r" (htonl(proto)), "0" (sum) : "t"); return csum_fold(sum); } -#endif -/* +/* * Copy and checksum to user */ #define HAVE_CSUM_COPY_USER -static __inline__ __wsum csum_and_copy_to_user (const void *src, - void __user *dst, - int len, __wsum sum, - int *err_ptr) +static inline __wsum csum_and_copy_to_user(const void *src, + void __user *dst, + int len, __wsum sum, + int *err_ptr) { if (access_ok(VERIFY_WRITE, dst, len)) return csum_partial_copy_generic((__force const void *)src, diff --git a/include/asm-sh/cpu-sh4/cache.h b/include/asm-sh/cpu-sh4/cache.h index 6e9c7e6ee8e4..f92b20a0983d 100644 --- a/include/asm-sh/cpu-sh4/cache.h +++ b/include/asm-sh/cpu-sh4/cache.h @@ -22,7 +22,7 @@ #define CCR_CACHE_ICE 0x0100 /* Instruction Cache Enable */ #define CCR_CACHE_ICI 0x0800 /* IC Invalidate */ #define CCR_CACHE_IIX 0x8000 /* IC Index Enable */ -#ifndef CONFIG_CPU_SUBTYPE_SH7780 +#ifndef CONFIG_CPU_SH4A #define CCR_CACHE_EMODE 0x80000000 /* EMODE Enable */ #endif diff --git a/include/asm-sh/cpu-sh4/freq.h b/include/asm-sh/cpu-sh4/freq.h index ef2b9b1ae41f..602d061ca2dc 100644 --- a/include/asm-sh/cpu-sh4/freq.h +++ b/include/asm-sh/cpu-sh4/freq.h @@ -10,7 +10,7 @@ #ifndef __ASM_CPU_SH4_FREQ_H #define __ASM_CPU_SH4_FREQ_H -#if defined(CONFIG_CPU_SUBTYPE_SH73180) +#if defined(CONFIG_CPU_SUBTYPE_SH73180) || defined(CONFIG_CPU_SUBTYPE_SH7722) #define FRQCR 0xa4150000 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) #define FRQCR 0xffc80000 diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h index 37ab0c131a4d..8d0867b98e05 100644 --- a/include/asm-sh/dma-mapping.h +++ b/include/asm-sh/dma-mapping.h @@ -67,7 +67,7 @@ static inline dma_addr_t dma_map_single(struct device *dev, if (dev->bus == &pci_bus_type) return virt_to_bus(ptr); #endif - dma_cache_sync(ptr, size, dir); + dma_cache_sync(dev, ptr, size, dir); return virt_to_bus(ptr); } @@ -81,7 +81,7 @@ static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, for (i = 0; i < nents; i++) { #if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT) - dma_cache_sync(page_address(sg[i].page) + sg[i].offset, + dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset, sg[i].length, dir); #endif sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset; @@ -112,7 +112,7 @@ static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle, if (dev->bus == &pci_bus_type) return; #endif - dma_cache_sync(bus_to_virt(dma_handle), size, dir); + dma_cache_sync(dev, bus_to_virt(dma_handle), size, dir); } static inline void dma_sync_single_range(struct device *dev, @@ -124,7 +124,7 @@ static inline void dma_sync_single_range(struct device *dev, if (dev->bus == &pci_bus_type) return; #endif - dma_cache_sync(bus_to_virt(dma_handle) + offset, size, dir); + dma_cache_sync(dev, bus_to_virt(dma_handle) + offset, size, dir); } static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg, @@ -134,7 +134,7 @@ static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg, for (i = 0; i < nelems; i++) { #if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT) - dma_cache_sync(page_address(sg[i].page) + sg[i].offset, + dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset, sg[i].length, dir); #endif sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset; diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index fd576088e47e..bff965ef4b95 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -37,7 +37,8 @@ # define ONCHIP_NR_IRQS 144 #elif defined(CONFIG_CPU_SUBTYPE_SH7300) || \ defined(CONFIG_CPU_SUBTYPE_SH73180) || \ - defined(CONFIG_CPU_SUBTYPE_SH7343) + defined(CONFIG_CPU_SUBTYPE_SH7343) || \ + defined(CONFIG_CPU_SUBTYPE_SH7722) # define ONCHIP_NR_IRQS 109 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) # define ONCHIP_NR_IRQS 111 @@ -79,6 +80,8 @@ # define OFFCHIP_NR_IRQS 16 #elif defined(CONFIG_SH_7343_SOLUTION_ENGINE) # define OFFCHIP_NR_IRQS 12 +#elif defined(CONFIG_SH_7722_SOLUTION_ENGINE) +# define OFFCHIP_NR_IRQS 14 #elif defined(CONFIG_SH_UNKNOWN) # define OFFCHIP_NR_IRQS 16 /* Must also be last */ #else diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index c84901dbd8e5..036ca2843866 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -508,16 +508,50 @@ struct vm_area_struct; extern void update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t pte); -/* Encode and de-code a swap entry */ /* + * Encode and de-code a swap entry + * + * Constraints: + * _PAGE_FILE at bit 0 + * _PAGE_PRESENT at bit 8 + * _PAGE_PROTNONE at bit 9 + * + * For the normal case, we encode the swap type into bits 0:7 and the + * swap offset into bits 10:30. For the 64-bit PTE case, we keep the + * preserved bits in the low 32-bits and use the upper 32 as the swap + * offset (along with a 5-bit type), following the same approach as x86 + * PAE. This keeps the logic quite simple, and allows for a full 32 + * PTE_FILE_MAX_BITS, as opposed to the 29-bits we're constrained with + * in the pte_low case. + * + * As is evident by the Alpha code, if we ever get a 64-bit unsigned + * long (swp_entry_t) to match up with the 64-bit PTEs, this all becomes + * much cleaner.. + * * NOTE: We should set ZEROs at the position of _PAGE_PRESENT * and _PAGE_PROTNONE bits */ -#define __swp_type(x) ((x).val & 0xff) -#define __swp_offset(x) ((x).val >> 10) -#define __swp_entry(type, offset) ((swp_entry_t) { (type) | ((offset) << 10) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 1 }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val << 1 }) +#ifdef CONFIG_X2TLB +#define __swp_type(x) ((x).val & 0x1f) +#define __swp_offset(x) ((x).val >> 5) +#define __swp_entry(type, offset) ((swp_entry_t){ (type) | (offset) << 5}) +#define __pte_to_swp_entry(pte) ((swp_entry_t){ (pte).pte_high }) +#define __swp_entry_to_pte(x) ((pte_t){ 0, (x).val }) + +/* + * Encode and decode a nonlinear file mapping entry + */ +#define pte_to_pgoff(pte) ((pte).pte_high) +#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) }) + +#define PTE_FILE_MAX_BITS 32 +#else +#define __swp_type(x) ((x).val & 0xff) +#define __swp_offset(x) ((x).val >> 10) +#define __swp_entry(type, offset) ((swp_entry_t){(type) | (offset) <<10}) + +#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 1 }) +#define __swp_entry_to_pte(x) ((pte_t) { (x).val << 1 }) /* * Encode and decode a nonlinear file mapping entry @@ -525,6 +559,7 @@ extern void update_mmu_cache(struct vm_area_struct * vma, #define PTE_FILE_MAX_BITS 29 #define pte_to_pgoff(pte) (pte_val(pte) >> 1) #define pgoff_to_pte(off) ((pte_t) { ((off) << 1) | _PAGE_FILE }) +#endif typedef pte_t *pte_addr_t; diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index 6f1dd7ca1b1d..e29f2abb92de 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -27,6 +27,8 @@ #define CCN_CVR 0xff000040 #define CCN_PRR 0xff000044 +const char *get_cpu_subtype(void); + /* * CPU type and hardware bug flags. Kept separately for each CPU. * @@ -52,8 +54,10 @@ enum cpu_type { CPU_SH7760, CPU_ST40RA, CPU_ST40GX1, CPU_SH4_202, CPU_SH4_501, /* SH-4A types */ - CPU_SH73180, CPU_SH7343, CPU_SH7770, CPU_SH7780, CPU_SH7781, - CPU_SH7785, + CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, + + /* SH4AL-DSP types */ + CPU_SH73180, CPU_SH7343, CPU_SH7722, /* Unknown subtype */ CPU_SH_NONE diff --git a/include/asm-sh/push-switch.h b/include/asm-sh/push-switch.h index dfc6bad567f0..4903f9e52dd8 100644 --- a/include/asm-sh/push-switch.h +++ b/include/asm-sh/push-switch.h @@ -4,6 +4,7 @@ #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/workqueue.h> +#include <linux/platform_device.h> struct push_switch { /* switch state */ @@ -12,6 +13,8 @@ struct push_switch { struct timer_list debounce; /* workqueue */ struct work_struct work; + /* platform device, for workqueue handler */ + struct platform_device *pdev; }; struct push_switch_platform_info { |