diff options
Diffstat (limited to 'arch/xtensa')
-rw-r--r-- | arch/xtensa/include/asm/rwsem.h | 37 | ||||
-rw-r--r-- | arch/xtensa/kernel/time.c | 6 | ||||
-rw-r--r-- | arch/xtensa/kernel/vmlinux.lds.S | 2 |
3 files changed, 2 insertions, 43 deletions
diff --git a/arch/xtensa/include/asm/rwsem.h b/arch/xtensa/include/asm/rwsem.h index e39edf5c86f..249619e7e7f 100644 --- a/arch/xtensa/include/asm/rwsem.h +++ b/arch/xtensa/include/asm/rwsem.h @@ -17,44 +17,12 @@ #error "Please don't include <asm/rwsem.h> directly, use <linux/rwsem.h> instead." #endif -#include <linux/list.h> -#include <linux/spinlock.h> -#include <asm/atomic.h> -#include <asm/system.h> - -/* - * the semaphore definition - */ -struct rw_semaphore { - signed long count; #define RWSEM_UNLOCKED_VALUE 0x00000000 #define RWSEM_ACTIVE_BIAS 0x00000001 #define RWSEM_ACTIVE_MASK 0x0000ffff #define RWSEM_WAITING_BIAS (-0x00010000) #define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) - spinlock_t wait_lock; - struct list_head wait_list; -}; - -#define __RWSEM_INITIALIZER(name) \ - { RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, \ - LIST_HEAD_INIT((name).wait_list) } - -#define DECLARE_RWSEM(name) \ - struct rw_semaphore name = __RWSEM_INITIALIZER(name) - -extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); - -static inline void init_rwsem(struct rw_semaphore *sem) -{ - sem->count = RWSEM_UNLOCKED_VALUE; - spin_lock_init(&sem->wait_lock); - INIT_LIST_HEAD(&sem->wait_list); -} /* * lock for reading @@ -160,9 +128,4 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) return atomic_add_return(delta, (atomic_t *)(&sem->count)); } -static inline int rwsem_is_locked(struct rw_semaphore *sem) -{ - return (sem->count != 0); -} - #endif /* _XTENSA_RWSEM_H */ diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c index 19df764f639..f3e5eb43f71 100644 --- a/arch/xtensa/kernel/time.c +++ b/arch/xtensa/kernel/time.c @@ -96,16 +96,12 @@ again: update_process_times(user_mode(get_irq_regs())); #endif - write_seqlock(&xtime_lock); - - do_timer(1); /* Linux handler in kernel/timer.c */ + xtime_update(1); /* Linux handler in kernel/time/timekeeping */ /* Note that writing CCOMPARE clears the interrupt. */ next += CCOUNT_PER_JIFFY; set_linux_timer(next); - - write_sequnlock(&xtime_lock); } /* Allow platform to do something useful (Wdog). */ diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index 9b526154c9b..a2820065927 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -155,7 +155,7 @@ SECTIONS INIT_RAM_FS } - PERCPU(PAGE_SIZE) + PERCPU(XCHAL_ICACHE_LINESIZE, PAGE_SIZE) /* We need this dummy segment here */ |