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-rw-r--r--kernel/arch/hexagon/include/asm/Kbuild3
-rw-r--r--kernel/arch/hexagon/include/asm/atomic.h6
-rw-r--r--kernel/arch/hexagon/include/asm/cmpxchg.h1
-rw-r--r--kernel/arch/hexagon/include/asm/dma-mapping.h49
-rw-r--r--kernel/arch/hexagon/include/uapi/asm/signal.h2
-rw-r--r--kernel/arch/hexagon/kernel/dma.c11
-rw-r--r--kernel/arch/hexagon/kernel/time.c17
7 files changed, 10 insertions, 79 deletions
diff --git a/kernel/arch/hexagon/include/asm/Kbuild b/kernel/arch/hexagon/include/asm/Kbuild
index c7a99f860..db8ddabc6 100644
--- a/kernel/arch/hexagon/include/asm/Kbuild
+++ b/kernel/arch/hexagon/include/asm/Kbuild
@@ -28,6 +28,7 @@ generic-y += kmap_types.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
+generic-y += mm-arch-hooks.h
generic-y += mman.h
generic-y += msgbuf.h
generic-y += pci.h
@@ -37,7 +38,6 @@ generic-y += posix_types.h
generic-y += preempt.h
generic-y += resource.h
generic-y += rwsem.h
-generic-y += scatterlist.h
generic-y += sections.h
generic-y += segment.h
generic-y += sembuf.h
@@ -58,4 +58,5 @@ generic-y += types.h
generic-y += ucontext.h
generic-y += unaligned.h
generic-y += vga.h
+generic-y += word-at-a-time.h
generic-y += xor.h
diff --git a/kernel/arch/hexagon/include/asm/atomic.h b/kernel/arch/hexagon/include/asm/atomic.h
index 93d07025f..55696c410 100644
--- a/kernel/arch/hexagon/include/asm/atomic.h
+++ b/kernel/arch/hexagon/include/asm/atomic.h
@@ -48,7 +48,7 @@ static inline void atomic_set(atomic_t *v, int new)
*
* Assumes all word reads on our architecture are atomic.
*/
-#define atomic_read(v) ((v)->counter)
+#define atomic_read(v) READ_ONCE((v)->counter)
/**
* atomic_xchg - atomic
@@ -132,6 +132,10 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
+ATOMIC_OP(and)
+ATOMIC_OP(or)
+ATOMIC_OP(xor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
diff --git a/kernel/arch/hexagon/include/asm/cmpxchg.h b/kernel/arch/hexagon/include/asm/cmpxchg.h
index 9e7802911..a6e34e2ac 100644
--- a/kernel/arch/hexagon/include/asm/cmpxchg.h
+++ b/kernel/arch/hexagon/include/asm/cmpxchg.h
@@ -64,7 +64,6 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
* looks just like atomic_cmpxchg on our arch currently with a bunch of
* variable casting.
*/
-#define __HAVE_ARCH_CMPXCHG 1
#define cmpxchg(ptr, old, new) \
({ \
diff --git a/kernel/arch/hexagon/include/asm/dma-mapping.h b/kernel/arch/hexagon/include/asm/dma-mapping.h
index 16965427f..268fde8a4 100644
--- a/kernel/arch/hexagon/include/asm/dma-mapping.h
+++ b/kernel/arch/hexagon/include/asm/dma-mapping.h
@@ -31,12 +31,10 @@
struct device;
extern int bad_dma_address;
+#define DMA_ERROR_CODE bad_dma_address
extern struct dma_map_ops *dma_ops;
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (unlikely(dev == NULL))
@@ -45,8 +43,8 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return dma_ops;
}
+#define HAVE_ARCH_DMA_SUPPORTED 1
extern int dma_supported(struct device *dev, u64 mask);
-extern int dma_set_mask(struct device *dev, u64 mask);
extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
@@ -60,47 +58,4 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
return addr + size - 1 <= *dev->dma_mask;
}
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
- if (dma_ops->mapping_error)
- return dma_ops->mapping_error(dev, dma_addr);
-
- return (dma_addr == bad_dma_address);
-}
-
-#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag,
- struct dma_attrs *attrs)
-{
- void *ret;
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- BUG_ON(!dma_ops);
-
- ret = ops->alloc(dev, size, dma_handle, flag, attrs);
-
- debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
-
- return ret;
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
- void *cpu_addr, dma_addr_t dma_handle,
- struct dma_attrs *attrs)
-{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
- BUG_ON(!dma_ops);
-
- dma_ops->free(dev, size, cpu_addr, dma_handle, attrs);
-
- debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
#endif
diff --git a/kernel/arch/hexagon/include/uapi/asm/signal.h b/kernel/arch/hexagon/include/uapi/asm/signal.h
index 98106e55a..24b998888 100644
--- a/kernel/arch/hexagon/include/uapi/asm/signal.h
+++ b/kernel/arch/hexagon/include/uapi/asm/signal.h
@@ -19,8 +19,6 @@
#ifndef _ASM_SIGNAL_H
#define _ASM_SIGNAL_H
-#include <uapi/asm/registers.h>
-
extern unsigned long __rt_sigtramp_template[2];
void do_signal(struct pt_regs *regs);
diff --git a/kernel/arch/hexagon/kernel/dma.c b/kernel/arch/hexagon/kernel/dma.c
index b74f9bae3..9e3ddf792 100644
--- a/kernel/arch/hexagon/kernel/dma.c
+++ b/kernel/arch/hexagon/kernel/dma.c
@@ -44,17 +44,6 @@ int dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
-int dma_set_mask(struct device *dev, u64 mask)
-{
- if (!dev->dma_mask || !dma_supported(dev, mask))
- return -EIO;
-
- *dev->dma_mask = mask;
-
- return 0;
-}
-EXPORT_SYMBOL(dma_set_mask);
-
static struct gen_pool *coherent_pool;
diff --git a/kernel/arch/hexagon/kernel/time.c b/kernel/arch/hexagon/kernel/time.c
index 17fbf45bf..a6a1d1f83 100644
--- a/kernel/arch/hexagon/kernel/time.c
+++ b/kernel/arch/hexagon/kernel/time.c
@@ -97,20 +97,6 @@ static int set_next_event(unsigned long delta, struct clock_event_device *evt)
return 0;
}
-/*
- * Sets the mode (periodic, shutdown, oneshot, etc) of a timer.
- */
-static void set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
-{
- switch (mode) {
- case CLOCK_EVT_MODE_SHUTDOWN:
- /* XXX implement me */
- default:
- break;
- }
-}
-
#ifdef CONFIG_SMP
/* Broadcast mechanism */
static void broadcast(const struct cpumask *mask)
@@ -119,13 +105,13 @@ static void broadcast(const struct cpumask *mask)
}
#endif
+/* XXX Implement set_state_shutdown() */
static struct clock_event_device hexagon_clockevent_dev = {
.name = "clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 400,
.irq = RTOS_TIMER_INT,
.set_next_event = set_next_event,
- .set_mode = set_mode,
#ifdef CONFIG_SMP
.broadcast = broadcast,
#endif
@@ -146,7 +132,6 @@ void setup_percpu_clockdev(void)
dummy_clock_dev->features = CLOCK_EVT_FEAT_DUMMY;
dummy_clock_dev->cpumask = cpumask_of(cpu);
- dummy_clock_dev->mode = CLOCK_EVT_MODE_UNUSED;
clockevents_register_device(dummy_clock_dev);
}