diff options
Diffstat (limited to 'arch/blackfin/include/asm')
| -rw-r--r-- | arch/blackfin/include/asm/atomic.h | 16 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/bfin-global.h | 11 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/bitops.h | 3 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/bug.h | 57 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/cache.h | 11 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/cacheflush.h | 3 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/cpu.h | 1 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/ftrace.h | 14 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/ipipe.h | 28 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/irq.h | 271 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/irqflags.h | 63 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/mutex-dec.h | 112 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/sections.h | 11 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/system.h | 4 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/unistd.h | 3 |
15 files changed, 188 insertions, 420 deletions
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h index 7bbf44e4ddf..b1d92f13ef9 100644 --- a/arch/blackfin/include/asm/atomic.h +++ b/arch/blackfin/include/asm/atomic.h @@ -90,7 +90,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v) static inline void atomic_add(int i, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter += i; @@ -99,7 +99,7 @@ static inline void atomic_add(int i, atomic_t *v) static inline void atomic_sub(int i, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter -= i; @@ -110,7 +110,7 @@ static inline void atomic_sub(int i, atomic_t *v) static inline int atomic_add_return(int i, atomic_t *v) { int __temp = 0; - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter += i; @@ -124,7 +124,7 @@ static inline int atomic_add_return(int i, atomic_t *v) static inline int atomic_sub_return(int i, atomic_t *v) { int __temp = 0; - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter -= i; @@ -136,7 +136,7 @@ static inline int atomic_sub_return(int i, atomic_t *v) static inline void atomic_inc(volatile atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter++; @@ -145,7 +145,7 @@ static inline void atomic_inc(volatile atomic_t *v) static inline void atomic_dec(volatile atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter--; @@ -154,7 +154,7 @@ static inline void atomic_dec(volatile atomic_t *v) static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter &= ~mask; @@ -163,7 +163,7 @@ static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter |= mask; diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h index daffc0684e7..e39277ea43e 100644 --- a/arch/blackfin/include/asm/bfin-global.h +++ b/arch/blackfin/include/asm/bfin-global.h @@ -31,7 +31,7 @@ #ifndef __ASSEMBLY__ -#include <asm-generic/sections.h> +#include <asm/sections.h> #include <asm/ptrace.h> #include <asm/user.h> #include <linux/linkage.h> @@ -99,15 +99,6 @@ extern const char bfin_board_name[]; extern unsigned long bfin_sic_iwr[]; extern unsigned vr_wakeup; extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ -extern unsigned long _ramstart, _ramend, _rambase; -extern unsigned long memory_start, memory_end, physical_mem_end; -extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], - _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], - _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], - _ebss_l2[], _l2_lma_start[]; - -/* only used when MTD_UCLINUX */ -extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; #ifdef CONFIG_BFIN_ICACHE_LOCK extern void cache_grab_lock(int way); diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h index 21b036eadab..75fee2f7d9f 100644 --- a/arch/blackfin/include/asm/bitops.h +++ b/arch/blackfin/include/asm/bitops.h @@ -109,7 +109,8 @@ static inline void clear_bit(int nr, volatile unsigned long *addr) static inline void change_bit(int nr, volatile unsigned long *addr) { - int mask, flags; + int mask; + unsigned long flags; unsigned long *ADDR = (unsigned long *)addr; ADDR += nr >> 5; diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h index 6d3e11b1fc5..655e49540e4 100644 --- a/arch/blackfin/include/asm/bug.h +++ b/arch/blackfin/include/asm/bug.h @@ -2,13 +2,58 @@ #define _BLACKFIN_BUG_H #ifdef CONFIG_BUG -#define HAVE_ARCH_BUG -#define BUG() do { \ - dump_bfin_trace_buffer(); \ - printk(KERN_EMERG "BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ - panic("BUG!"); \ -} while (0) +#define BFIN_BUG_OPCODE 0xefcd + +#ifdef CONFIG_DEBUG_BUGVERBOSE + +#define _BUG_OR_WARN(flags) \ + asm volatile( \ + "1: .hword %0\n" \ + " .section __bug_table,\"a\",@progbits\n" \ + "2: .long 1b\n" \ + " .long %1\n" \ + " .short %2\n" \ + " .short %3\n" \ + " .org 2b + %4\n" \ + " .previous" \ + : \ + : "i"(BFIN_BUG_OPCODE), "i"(__FILE__), \ + "i"(__LINE__), "i"(flags), \ + "i"(sizeof(struct bug_entry))) + +#else + +#define _BUG_OR_WARN(flags) \ + asm volatile( \ + "1: .hword %0\n" \ + " .section __bug_table,\"a\",@progbits\n" \ + "2: .long 1b\n" \ + " .short %1\n" \ + " .org 2b + %2\n" \ + " .previous" \ + : \ + : "i"(BFIN_BUG_OPCODE), "i"(flags), \ + "i"(sizeof(struct bug_entry))) + +#endif /* CONFIG_DEBUG_BUGVERBOSE */ + +#define BUG() \ + do { \ + _BUG_OR_WARN(0); \ + for (;;); \ + } while (0) + +#define WARN_ON(condition) \ + ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + _BUG_OR_WARN(BUGFLAG_WARNING); \ + unlikely(__ret_warn_on); \ + }) + +#define HAVE_ARCH_BUG +#define HAVE_ARCH_WARN_ON #endif diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h index 86637814cf2..2ef669ed922 100644 --- a/arch/blackfin/include/asm/cache.h +++ b/arch/blackfin/include/asm/cache.h @@ -34,9 +34,13 @@ #define L1_CACHE_SHIFT_MAX 5 #if defined(CONFIG_SMP) && \ - !defined(CONFIG_BFIN_CACHE_COHERENT) && \ - defined(CONFIG_BFIN_DCACHE) -#define __ARCH_SYNC_CORE_DCACHE + !defined(CONFIG_BFIN_CACHE_COHERENT) +# if defined(CONFIG_BFIN_ICACHE) +# define __ARCH_SYNC_CORE_ICACHE +# endif +# if defined(CONFIG_BFIN_DCACHE) +# define __ARCH_SYNC_CORE_DCACHE +# endif #ifndef __ASSEMBLY__ asmlinkage void __raw_smp_mark_barrier_asm(void); asmlinkage void __raw_smp_check_barrier_asm(void); @@ -51,6 +55,7 @@ static inline void smp_check_barrier(void) } void resync_core_dcache(void); +void resync_core_icache(void); #endif #endif diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h index 94697f0f6f4..5c17dee53b5 100644 --- a/arch/blackfin/include/asm/cacheflush.h +++ b/arch/blackfin/include/asm/cacheflush.h @@ -37,6 +37,7 @@ extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned lo extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address); extern void blackfin_dflush_page(void *page); extern void blackfin_invalidate_entire_dcache(void); +extern void blackfin_invalidate_entire_icache(void); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) @@ -97,7 +98,7 @@ do { memcpy(dst, src, len); \ extern unsigned long reserved_mem_dcache_on; extern unsigned long reserved_mem_icache_on; -static inline int bfin_addr_dcachable(unsigned long addr) +static inline int bfin_addr_dcacheable(unsigned long addr) { #ifdef CONFIG_BFIN_DCACHE if (addr < (_ramend - DMA_UNCACHED_REGION)) diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h index c2594ef877f..565b8136855 100644 --- a/arch/blackfin/include/asm/cpu.h +++ b/arch/blackfin/include/asm/cpu.h @@ -34,6 +34,7 @@ struct blackfin_cpudata { unsigned int dmemctl; unsigned long loops_per_jiffy; unsigned long dcache_invld_count; + unsigned long icache_invld_count; }; DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data); diff --git a/arch/blackfin/include/asm/ftrace.h b/arch/blackfin/include/asm/ftrace.h index 40a8c178f10..8643680f0f7 100644 --- a/arch/blackfin/include/asm/ftrace.h +++ b/arch/blackfin/include/asm/ftrace.h @@ -1 +1,13 @@ -/* empty */ +/* + * Blackfin ftrace code + * + * Copyright 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASM_BFIN_FTRACE_H__ +#define __ASM_BFIN_FTRACE_H__ + +#define MCOUNT_INSN_SIZE 8 /* sizeof mcount call: LINK + CALL */ + +#endif diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h index 51d0bf5e289..bbe1c3726b6 100644 --- a/arch/blackfin/include/asm/ipipe.h +++ b/arch/blackfin/include/asm/ipipe.h @@ -35,10 +35,10 @@ #include <asm/atomic.h> #include <asm/traps.h> -#define IPIPE_ARCH_STRING "1.9-01" +#define IPIPE_ARCH_STRING "1.10-00" #define IPIPE_MAJOR_NUMBER 1 -#define IPIPE_MINOR_NUMBER 9 -#define IPIPE_PATCH_NUMBER 1 +#define IPIPE_MINOR_NUMBER 10 +#define IPIPE_PATCH_NUMBER 0 #ifdef CONFIG_SMP #error "I-pipe/blackfin: SMP not implemented" @@ -54,10 +54,11 @@ do { \ #define task_hijacked(p) \ ({ \ - int __x__ = ipipe_current_domain != ipipe_root_domain; \ - /* We would need to clear the SYNC flag for the root domain */ \ - /* over the current processor in SMP mode. */ \ - local_irq_enable_hw(); __x__; \ + int __x__ = __ipipe_root_domain_p; \ + __clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \ + if (__x__) \ + local_irq_enable_hw(); \ + !__x__; \ }) struct ipipe_domain; @@ -179,23 +180,24 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul) #define __ipipe_run_isr(ipd, irq) \ do { \ - if (ipd == ipipe_root_domain) { \ + if (!__ipipe_pipeline_head_p(ipd)) \ local_irq_enable_hw(); \ - if (ipipe_virtual_irq_p(irq)) \ + if (ipd == ipipe_root_domain) { \ + if (unlikely(ipipe_virtual_irq_p(irq))) { \ + irq_enter(); \ ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \ - else \ + irq_exit(); \ + } else \ ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \ - local_irq_disable_hw(); \ } else { \ __clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \ - local_irq_enable_nohead(ipd); \ ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \ /* Attempt to exit the outer interrupt level before \ * starting the deferred IRQ processing. */ \ - local_irq_disable_nohead(ipd); \ __ipipe_run_irqtail(); \ __set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \ } \ + local_irq_disable_hw(); \ } while (0) #define __ipipe_syscall_watched_p(p, sc) \ diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h index 7645e85a5f6..400bdd52ce8 100644 --- a/arch/blackfin/include/asm/irq.h +++ b/arch/blackfin/include/asm/irq.h @@ -17,270 +17,17 @@ #ifndef _BFIN_IRQ_H_ #define _BFIN_IRQ_H_ -/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/ -#include <mach/irq.h> -#include <asm/pda.h> -#include <asm/processor.h> - -#ifdef CONFIG_SMP -/* Forward decl needed due to cdef inter dependencies */ -static inline uint32_t __pure bfin_dspid(void); -# define blackfin_core_id() (bfin_dspid() & 0xff) -# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask -#else -extern unsigned long bfin_irq_flags; -#endif - -#ifdef CONFIG_IPIPE - -#include <linux/ipipe_trace.h> +#include <linux/irqflags.h> -void __ipipe_unstall_root(void); - -void __ipipe_restore_root(unsigned long flags); - -#ifdef CONFIG_DEBUG_HWERR -# define __all_masked_irq_flags 0x3f -# define __save_and_cli_hw(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %1;" \ - : "=&d"(x) \ - : "d" (0x3F) \ - ) -#else -# define __all_masked_irq_flags 0x1f -# define __save_and_cli_hw(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - : "=&d"(x) \ - ) -#endif - -#define irqs_enabled_from_flags_hw(x) ((x) != __all_masked_irq_flags) -#define raw_irqs_disabled_flags(flags) (!irqs_enabled_from_flags_hw(flags)) -#define local_test_iflag_hw(x) irqs_enabled_from_flags_hw(x) - -#define local_save_flags(x) \ - do { \ - (x) = __ipipe_test_root() ? \ - __all_masked_irq_flags : bfin_irq_flags; \ - barrier(); \ - } while (0) - -#define local_irq_save(x) \ - do { \ - (x) = __ipipe_test_and_stall_root() ? \ - __all_masked_irq_flags : bfin_irq_flags; \ - barrier(); \ - } while (0) - -static inline void local_irq_restore(unsigned long x) -{ - barrier(); - __ipipe_restore_root(x == __all_masked_irq_flags); -} - -#define local_irq_disable() \ - do { \ - __ipipe_stall_root(); \ - barrier(); \ - } while (0) - -static inline void local_irq_enable(void) -{ - barrier(); - __ipipe_unstall_root(); -} - -#define irqs_disabled() __ipipe_test_root() - -#define local_save_flags_hw(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %0;" \ - : "=d"(x) \ - ) - -#define irqs_disabled_hw() \ - ({ \ - unsigned long flags; \ - local_save_flags_hw(flags); \ - !irqs_enabled_from_flags_hw(flags); \ - }) - -static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real) -{ - /* Merge virtual and real interrupt mask bits into a single - 32bit word. */ - return (real & ~(1 << 31)) | ((virt != 0) << 31); -} - -static inline int raw_demangle_irq_bits(unsigned long *x) -{ - int virt = (*x & (1 << 31)) != 0; - *x &= ~(1L << 31); - return virt; -} - -#ifdef CONFIG_IPIPE_TRACE_IRQSOFF - -#define local_irq_disable_hw() \ - do { \ - int _tmp_dummy; \ - if (!irqs_disabled_hw()) \ - ipipe_trace_begin(0x80000000); \ - __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \ - } while (0) - -#define local_irq_enable_hw() \ - do { \ - if (irqs_disabled_hw()) \ - ipipe_trace_end(0x80000000); \ - __asm__ __volatile__ ("sti %0;" : : "d"(bfin_irq_flags)); \ - } while (0) - -#define local_irq_save_hw(x) \ - do { \ - __save_and_cli_hw(x); \ - if (local_test_iflag_hw(x)) \ - ipipe_trace_begin(0x80000001); \ - } while (0) - -#define local_irq_restore_hw(x) \ - do { \ - if (local_test_iflag_hw(x)) { \ - ipipe_trace_end(0x80000001); \ - local_irq_enable_hw_notrace(); \ - } \ - } while (0) - -#define local_irq_disable_hw_notrace() \ - do { \ - int _tmp_dummy; \ - __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \ - } while (0) - -#define local_irq_enable_hw_notrace() \ - __asm__ __volatile__( \ - "sti %0;" \ - : \ - : "d"(bfin_irq_flags) \ - ) - -#define local_irq_save_hw_notrace(x) __save_and_cli_hw(x) - -#define local_irq_restore_hw_notrace(x) \ - do { \ - if (local_test_iflag_hw(x)) \ - local_irq_enable_hw_notrace(); \ - } while (0) - -#else /* CONFIG_IPIPE_TRACE_IRQSOFF */ - -#define local_irq_enable_hw() \ - __asm__ __volatile__( \ - "sti %0;" \ - : \ - : "d"(bfin_irq_flags) \ - ) - -#define local_irq_disable_hw() \ - do { \ - int _tmp_dummy; \ - __asm__ __volatile__ ( \ - "cli %0;" \ - : "=d" (_tmp_dummy)); \ - } while (0) - -#define local_irq_restore_hw(x) \ - do { \ - if (irqs_enabled_from_flags_hw(x)) \ - local_irq_enable_hw(); \ - } while (0) - -#define local_irq_save_hw(x) __save_and_cli_hw(x) - -#define local_irq_disable_hw_notrace() local_irq_disable_hw() -#define local_irq_enable_hw_notrace() local_irq_enable_hw() -#define local_irq_save_hw_notrace(x) local_irq_save_hw(x) -#define local_irq_restore_hw_notrace(x) local_irq_restore_hw(x) - -#endif /* CONFIG_IPIPE_TRACE_IRQSOFF */ - -#else /* !CONFIG_IPIPE */ - -/* - * Interrupt configuring macros. - */ -#define local_irq_disable() \ - do { \ - int __tmp_dummy; \ - __asm__ __volatile__( \ - "cli %0;" \ - : "=d" (__tmp_dummy) \ - ); \ - } while (0) - -#define local_irq_enable() \ - __asm__ __volatile__( \ - "sti %0;" \ - : \ - : "d" (bfin_irq_flags) \ - ) - -#ifdef CONFIG_DEBUG_HWERR -# define __save_and_cli(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %1;" \ - : "=&d" (x) \ - : "d" (0x3F) \ - ) -#else -# define __save_and_cli(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - : "=&d" (x) \ - ) -#endif - -#define local_save_flags(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %0;" \ - : "=d" (x) \ - ) - -#ifdef CONFIG_DEBUG_HWERR -#define irqs_enabled_from_flags(x) (((x) & ~0x3f) != 0) -#else -#define irqs_enabled_from_flags(x) ((x) != 0x1f) -#endif - -#define local_irq_restore(x) \ - do { \ - if (irqs_enabled_from_flags(x)) \ - local_irq_enable(); \ - } while (0) - -/* For spinlocks etc */ -#define local_irq_save(x) __save_and_cli(x) - -#define irqs_disabled() \ -({ \ - unsigned long flags; \ - local_save_flags(flags); \ - !irqs_enabled_from_flags(flags); \ -}) - -#define local_irq_save_hw(x) local_irq_save(x) -#define local_irq_restore_hw(x) local_irq_restore(x) -#define local_irq_enable_hw() local_irq_enable() -#define local_irq_disable_hw() local_irq_disable() -#define irqs_disabled_hw() irqs_disabled() +/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */ +#include <mach/irq.h> -#endif /* !CONFIG_IPIPE */ +/* Xenomai IPIPE helpers */ +#define local_irq_restore_hw(x) local_irq_restore(x) +#define local_irq_save_hw(x) local_irq_save(x) +#define local_irq_enable_hw(x) local_irq_enable(x) +#define local_irq_disable_hw(x) local_irq_disable(x) +#define irqs_disabled_hw(x) irqs_disabled(x) #if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE) # define NOP_PAD_ANOMALY_05000244 "nop; nop;" diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h new file mode 100644 index 00000000000..139cba4651b --- /dev/null +++ b/arch/blackfin/include/asm/irqflags.h @@ -0,0 +1,63 @@ +/* + * interface to Blackfin CEC + * + * Copyright 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASM_BFIN_IRQFLAGS_H__ +#define __ASM_BFIN_IRQFLAGS_H__ + +#ifdef CONFIG_SMP +# include <asm/pda.h> +# include <asm/processor.h> +/* Forward decl needed due to cdef inter dependencies */ +static inline uint32_t __pure bfin_dspid(void); +# define blackfin_core_id() (bfin_dspid() & 0xff) +# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask +#else +extern unsigned long bfin_irq_flags; +#endif + +static inline void bfin_sti(unsigned long flags) +{ + asm volatile("sti %0;" : : "d" (flags)); +} + +static inline unsigned long bfin_cli(void) +{ + unsigned long flags; + asm volatile("cli %0;" : "=d" (flags)); + return flags; +} + +static inline void raw_local_irq_disable(void) +{ + bfin_cli(); +} +static inline void raw_local_irq_enable(void) +{ + bfin_sti(bfin_irq_flags); +} + +#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0) + +#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0) + +static inline void raw_local_irq_restore(unsigned long flags) +{ + if (!raw_irqs_disabled_flags(flags)) + raw_local_irq_enable(); +} + +static inline unsigned long __raw_local_irq_save(void) +{ + unsigned long flags = bfin_cli(); +#ifdef CONFIG_DEBUG_HWERR + bfin_sti(0x3f); +#endif + return flags; +} +#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0) + +#endif diff --git a/arch/blackfin/include/asm/mutex-dec.h b/arch/blackfin/include/asm/mutex-dec.h deleted file mode 100644 index 0134151656a..00000000000 --- a/arch/blackfin/include/asm/mutex-dec.h +++ /dev/null @@ -1,112 +0,0 @@ -/* - * include/asm-generic/mutex-dec.h - * - * Generic implementation of the mutex fastpath, based on atomic - * decrement/increment. - */ -#ifndef _ASM_GENERIC_MUTEX_DEC_H -#define _ASM_GENERIC_MUTEX_DEC_H - -/** - * __mutex_fastpath_lock - try to take the lock by moving the count - * from 1 to a 0 value - * @count: pointer of type atomic_t - * @fail_fn: function to call if the original value was not 1 - * - * Change the count from 1 to a value lower than 1, and call <fail_fn> if - * it wasn't 1 originally. This function MUST leave the value lower than - * 1 even when the "1" assertion wasn't true. - */ -static inline void -__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *)) -{ - if (unlikely(atomic_dec_return(count) < 0)) - fail_fn(count); - else - smp_mb(); -} - -/** - * __mutex_fastpath_lock_retval - try to take the lock by moving the count - * from 1 to a 0 value - * @count: pointer of type atomic_t - * @fail_fn: function to call if the original value was not 1 - * - * Change the count from 1 to a value lower than 1, and call <fail_fn> if - * it wasn't 1 originally. This function returns 0 if the fastpath succeeds, - * or anything the slow path function returns. - */ -static inline int -__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *)) -{ - if (unlikely(atomic_dec_return(count) < 0)) - return fail_fn(count); - else { - smp_mb(); - return 0; - } -} - -/** - * __mutex_fastpath_unlock - try to promote the count from 0 to 1 - * @count: pointer of type atomic_t - * @fail_fn: function to call if the original value was not 0 - * - * Try to promote the count from 0 to 1. If it wasn't 0, call <fail_fn>. - * In the failure case, this function is allowed to either set the value to - * 1, or to set it to a value lower than 1. - * - * If the implementation sets it to a value of lower than 1, then the - * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs - * to return 0 otherwise. - */ -static inline void -__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *)) -{ - smp_mb(); - if (unlikely(atomic_inc_return(count) <= 0)) - fail_fn(count); -} - -#define __mutex_slowpath_needs_to_unlock() 1 - -/** - * __mutex_fastpath_trylock - try to acquire the mutex, without waiting - * - * @count: pointer of type atomic_t - * @fail_fn: fallback function - * - * Change the count from 1 to a value lower than 1, and return 0 (failure) - * if it wasn't 1 originally, or return 1 (success) otherwise. This function - * MUST leave the value lower than 1 even when the "1" assertion wasn't true. - * Additionally, if the value was < 0 originally, this function must not leave - * it to 0 on failure. - * - * If the architecture has no effective trylock variant, it should call the - * <fail_fn> spinlock-based trylock variant unconditionally. - */ -static inline int -__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *)) -{ - /* - * We have two variants here. The cmpxchg based one is the best one - * because it never induce a false contention state. It is included - * here because architectures using the inc/dec algorithms over the - * xchg ones are much more likely to support cmpxchg natively. - * - * If not we fall back to the spinlock based variant - that is - * just as efficient (and simpler) as a 'destructive' probing of - * the mutex state would be. - */ -#ifdef __HAVE_ARCH_CMPXCHG - if (likely(atomic_cmpxchg(count, 1, 0) == 1)) { - smp_mb(); - return 1; - } - return 0; -#else - return fail_fn(count); -#endif -} - -#endif diff --git a/arch/blackfin/include/asm/sections.h b/arch/blackfin/include/asm/sections.h index 1443c3353a8..e7fd0ecd73f 100644 --- a/arch/blackfin/include/asm/sections.h +++ b/arch/blackfin/include/asm/sections.h @@ -4,4 +4,15 @@ /* nothing to see, move along */ #include <asm-generic/sections.h> +/* only used when MTD_UCLINUX */ +extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; + +extern unsigned long _ramstart, _ramend, _rambase; +extern unsigned long memory_start, memory_end, physical_mem_end; + +extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], + _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], + _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], + _ebss_l2[], _l2_lma_start[]; + #endif diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h index a4c8254bec5..294dbda2416 100644 --- a/arch/blackfin/include/asm/system.h +++ b/arch/blackfin/include/asm/system.h @@ -35,10 +35,10 @@ #define _BLACKFIN_SYSTEM_H #include <linux/linkage.h> -#include <linux/compiler.h> +#include <linux/irqflags.h> #include <mach/anomaly.h> +#include <asm/cache.h> #include <asm/pda.h> -#include <asm/processor.h> #include <asm/irq.h> /* diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h index cf5066d3efd..da35133c171 100644 --- a/arch/blackfin/include/asm/unistd.h +++ b/arch/blackfin/include/asm/unistd.h @@ -380,8 +380,9 @@ #define __NR_inotify_init1 365 #define __NR_preadv 366 #define __NR_pwritev 367 +#define __NR_rt_tgsigqueueinfo 368 -#define __NR_syscall 368 +#define __NR_syscall 369 #define NR_syscalls __NR_syscall /* Old optional stuff no one actually uses */ |