diff options
Diffstat (limited to 'arch/hexagon')
| -rw-r--r-- | arch/hexagon/Kconfig | 3 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/atomic.h | 31 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/dma-mapping.h | 1 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/spinlock.h | 10 | ||||
| -rw-r--r-- | arch/hexagon/kernel/dma.c | 8 | ||||
| -rw-r--r-- | arch/hexagon/mm/init.c | 2 | ||||
| -rw-r--r-- | arch/hexagon/mm/vm_fault.c | 2 |
7 files changed, 41 insertions, 16 deletions
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 57298e7b4..1941e4baa 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -8,8 +8,7 @@ config HEXAGON # select HAVE_REGS_AND_STACK_ACCESS_API # select HAVE_HW_BREAKPOINT if PERF_EVENTS # select ARCH_HAS_CPU_IDLE_WAIT - # select ARCH_WANT_OPTIONAL_GPIOLIB - # select ARCH_REQUIRE_GPIOLIB + # select GPIOLIB # select HAVE_CLK # select GENERIC_PENDING_IRQ if SMP select GENERIC_ATOMIC64 diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h index 55696c410..a62ba368b 100644 --- a/arch/hexagon/include/asm/atomic.h +++ b/arch/hexagon/include/asm/atomic.h @@ -110,7 +110,7 @@ static inline void atomic_##op(int i, atomic_t *v) \ ); \ } \ -#define ATOMIC_OP_RETURN(op) \ +#define ATOMIC_OP_RETURN(op) \ static inline int atomic_##op##_return(int i, atomic_t *v) \ { \ int output; \ @@ -127,16 +127,37 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \ return output; \ } -#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) +#define ATOMIC_FETCH_OP(op) \ +static inline int atomic_fetch_##op(int i, atomic_t *v) \ +{ \ + int output, val; \ + \ + __asm__ __volatile__ ( \ + "1: %0 = memw_locked(%2);\n" \ + " %1 = "#op "(%0,%3);\n" \ + " memw_locked(%2,P3)=%1;\n" \ + " if !P3 jump 1b;\n" \ + : "=&r" (output), "=&r" (val) \ + : "r" (&v->counter), "r" (i) \ + : "memory", "p3" \ + ); \ + return output; \ +} + +#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op) ATOMIC_OPS(add) ATOMIC_OPS(sub) -ATOMIC_OP(and) -ATOMIC_OP(or) -ATOMIC_OP(xor) +#undef ATOMIC_OPS +#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op) + +ATOMIC_OPS(and) +ATOMIC_OPS(or) +ATOMIC_OPS(xor) #undef ATOMIC_OPS +#undef ATOMIC_FETCH_OP #undef ATOMIC_OP_RETURN #undef ATOMIC_OP diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index aa6203464..7ef58df90 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -26,7 +26,6 @@ #include <linux/mm.h> #include <linux/scatterlist.h> #include <linux/dma-debug.h> -#include <linux/dma-attrs.h> #include <asm/io.h> struct device; diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h index 12ca4ebc0..a1c55788c 100644 --- a/arch/hexagon/include/asm/spinlock.h +++ b/arch/hexagon/include/asm/spinlock.h @@ -23,6 +23,8 @@ #define _ASM_SPINLOCK_H #include <asm/irqflags.h> +#include <asm/barrier.h> +#include <asm/processor.h> /* * This file is pulled in for SMP builds. @@ -176,8 +178,12 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock) * SMP spinlocks are intended to allow only a single CPU at the lock */ #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) -#define arch_spin_unlock_wait(lock) \ - do {while (arch_spin_is_locked(lock)) cpu_relax(); } while (0) + +static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) +{ + smp_cond_load_acquire(&lock->lock, !VAL); +} + #define arch_spin_is_locked(x) ((x)->lock != 0) #define arch_read_lock_flags(lock, flags) arch_read_lock(lock) diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index 9e3ddf792..b9017785f 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -51,7 +51,7 @@ static struct gen_pool *coherent_pool; static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, gfp_t flag, - struct dma_attrs *attrs) + unsigned long attrs) { void *ret; @@ -84,7 +84,7 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, } static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr, struct dma_attrs *attrs) + dma_addr_t dma_addr, unsigned long attrs) { gen_pool_free(coherent_pool, (unsigned long) vaddr, size); } @@ -105,7 +105,7 @@ static int check_addr(const char *name, struct device *hwdev, static int hexagon_map_sg(struct device *hwdev, struct scatterlist *sg, int nents, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) { struct scatterlist *s; int i; @@ -172,7 +172,7 @@ static inline void dma_sync(void *addr, size_t size, static dma_addr_t hexagon_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) { dma_addr_t bus = page_to_phys(page) + offset; WARN_ON(size == 0); diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 88977e42a..192584d5a 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -93,7 +93,7 @@ void __init mem_init(void) * Todo: free pages between __init_begin and __init_end; possibly * some devtree related stuff as well. */ -void __init_refok free_initmem(void) +void __ref free_initmem(void) { } diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c index 8704c9320..bd7c251e2 100644 --- a/arch/hexagon/mm/vm_fault.c +++ b/arch/hexagon/mm/vm_fault.c @@ -101,7 +101,7 @@ good_area: break; } - fault = handle_mm_fault(mm, vma, address, flags); + fault = handle_mm_fault(vma, address, flags); if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) return; |