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-rw-r--r--arch/tile/include/asm/atomic.h2
-rw-r--r--arch/tile/include/asm/atomic_32.h1
-rw-r--r--arch/tile/include/asm/atomic_64.h1
-rw-r--r--arch/tile/include/asm/barrier.h (renamed from arch/tile/include/asm/system.h)121
-rw-r--r--arch/tile/include/asm/bitops_32.h1
-rw-r--r--arch/tile/include/asm/bitops_64.h1
-rw-r--r--arch/tile/include/asm/cacheflush.h11
-rw-r--r--arch/tile/include/asm/exec.h20
-rw-r--r--arch/tile/include/asm/pgtable.h1
-rw-r--r--arch/tile/include/asm/setup.h22
-rw-r--r--arch/tile/include/asm/spinlock_32.h1
-rw-r--r--arch/tile/include/asm/switch_to.h76
-rw-r--r--arch/tile/include/asm/timex.h2
-rw-r--r--arch/tile/include/asm/unaligned.h15
14 files changed, 152 insertions, 123 deletions
diff --git a/arch/tile/include/asm/atomic.h b/arch/tile/include/asm/atomic.h
index 921dbeb8a70..bb696da5d7c 100644
--- a/arch/tile/include/asm/atomic.h
+++ b/arch/tile/include/asm/atomic.h
@@ -20,7 +20,7 @@
#ifndef __ASSEMBLY__
#include <linux/compiler.h>
-#include <asm/system.h>
+#include <linux/types.h>
#define ATOMIC_INIT(i) { (i) }
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index c03349e0ca9..466dc4a39a4 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -17,6 +17,7 @@
#ifndef _ASM_TILE_ATOMIC_32_H
#define _ASM_TILE_ATOMIC_32_H
+#include <asm/barrier.h>
#include <arch/chip.h>
#ifndef __ASSEMBLY__
diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
index 27fe667fddf..f4500c688ff 100644
--- a/arch/tile/include/asm/atomic_64.h
+++ b/arch/tile/include/asm/atomic_64.h
@@ -19,6 +19,7 @@
#ifndef __ASSEMBLY__
+#include <asm/barrier.h>
#include <arch/spr_def.h>
/* First, the 32-bit atomic ops that are "real" on our 64-bit platform. */
diff --git a/arch/tile/include/asm/system.h b/arch/tile/include/asm/barrier.h
index 23d1842f483..990a217a0b7 100644
--- a/arch/tile/include/asm/system.h
+++ b/arch/tile/include/asm/barrier.h
@@ -12,20 +12,15 @@
* more details.
*/
-#ifndef _ASM_TILE_SYSTEM_H
-#define _ASM_TILE_SYSTEM_H
+#ifndef _ASM_TILE_BARRIER_H
+#define _ASM_TILE_BARRIER_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
-#include <linux/irqflags.h>
-
-/* NOTE: we can't include <linux/ptrace.h> due to #include dependencies. */
-#include <asm/ptrace.h>
-
#include <arch/chip.h>
-#include <arch/sim_def.h>
#include <arch/spr_def.h>
+#include <asm/timex.h>
/*
* read_barrier_depends - Flush all pending reads that subsequents reads
@@ -78,17 +73,10 @@
* as Alpha, "y" could be set to 3 and "x" to 0. Use rmb()
* in cases like this where there are no data dependencies.
*/
-
#define read_barrier_depends() do { } while (0)
#define __sync() __insn_mf()
-#if CHIP_HAS_SPLIT_CYCLE()
-#define get_cycles_low() __insn_mfspr(SPR_CYCLE_LOW)
-#else
-#define get_cycles_low() __insn_mfspr(SPR_CYCLE) /* just get all 64 bits */
-#endif
-
#if !CHIP_HAS_MF_WAITS_FOR_VICTIMS()
#include <hv/syscall_public.h>
/*
@@ -156,106 +144,5 @@ mb_incoherent(void)
#define set_mb(var, value) \
do { var = value; mb(); } while (0)
-/*
- * Pause the DMA engine and static network before task switching.
- */
-#define prepare_arch_switch(next) _prepare_arch_switch(next)
-void _prepare_arch_switch(struct task_struct *next);
-
-
-/*
- * switch_to(n) should switch tasks to task nr n, first
- * checking that n isn't the current task, in which case it does nothing.
- * The number of callee-saved registers saved on the kernel stack
- * is defined here for use in copy_thread() and must agree with __switch_to().
- */
-#endif /* !__ASSEMBLY__ */
-#define CALLEE_SAVED_FIRST_REG 30
-#define CALLEE_SAVED_REGS_COUNT 24 /* r30 to r52, plus an empty to align */
-#ifndef __ASSEMBLY__
-struct task_struct;
-#define switch_to(prev, next, last) ((last) = _switch_to((prev), (next)))
-extern struct task_struct *_switch_to(struct task_struct *prev,
- struct task_struct *next);
-
-/* Helper function for _switch_to(). */
-extern struct task_struct *__switch_to(struct task_struct *prev,
- struct task_struct *next,
- unsigned long new_system_save_k_0);
-
-/* Address that switched-away from tasks are at. */
-extern unsigned long get_switch_to_pc(void);
-
-/*
- * On SMP systems, when the scheduler does migration-cost autodetection,
- * it needs a way to flush as much of the CPU's caches as possible:
- *
- * TODO: fill this in!
- */
-static inline void sched_cacheflush(void)
-{
-}
-
-#define arch_align_stack(x) (x)
-
-/*
- * Is the kernel doing fixups of unaligned accesses? If <0, no kernel
- * intervention occurs and SIGBUS is delivered with no data address
- * info. If 0, the kernel single-steps the instruction to discover
- * the data address to provide with the SIGBUS. If 1, the kernel does
- * a fixup.
- */
-extern int unaligned_fixup;
-
-/* Is the kernel printing on each unaligned fixup? */
-extern int unaligned_printk;
-
-/* Number of unaligned fixups performed */
-extern unsigned int unaligned_fixup_count;
-
-/* Init-time routine to do tile-specific per-cpu setup. */
-void setup_cpu(int boot);
-
-/* User-level DMA management functions */
-void grant_dma_mpls(void);
-void restrict_dma_mpls(void);
-
-#ifdef CONFIG_HARDWALL
-/* User-level network management functions */
-void reset_network_state(void);
-void grant_network_mpls(void);
-void restrict_network_mpls(void);
-int hardwall_deactivate(struct task_struct *task);
-
-/* Hook hardwall code into changes in affinity. */
-#define arch_set_cpus_allowed(p, new_mask) do { \
- if (p->thread.hardwall && !cpumask_equal(&p->cpus_allowed, new_mask)) \
- hardwall_deactivate(p); \
-} while (0)
-#endif
-
-/*
- * Kernel threads can check to see if they need to migrate their
- * stack whenever they return from a context switch; for user
- * threads, we defer until they are returning to user-space.
- */
-#define finish_arch_switch(prev) do { \
- if (unlikely((prev)->state == TASK_DEAD)) \
- __insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_OS_EXIT | \
- ((prev)->pid << _SIM_CONTROL_OPERATOR_BITS)); \
- __insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_OS_SWITCH | \
- (current->pid << _SIM_CONTROL_OPERATOR_BITS)); \
- if (current->mm == NULL && !kstack_hash && \
- current_thread_info()->homecache_cpu != smp_processor_id()) \
- homecache_migrate_kthread(); \
-} while (0)
-
-/* Support function for forking a new task. */
-void ret_from_fork(void);
-
-/* Called from ret_from_fork() when a new process starts up. */
-struct task_struct *sim_notify_fork(struct task_struct *prev);
-
#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_TILE_SYSTEM_H */
+#endif /* _ASM_TILE_BARRIER_H */
diff --git a/arch/tile/include/asm/bitops_32.h b/arch/tile/include/asm/bitops_32.h
index 571b118bfd9..ddc4c1efde4 100644
--- a/arch/tile/include/asm/bitops_32.h
+++ b/arch/tile/include/asm/bitops_32.h
@@ -17,7 +17,6 @@
#include <linux/compiler.h>
#include <linux/atomic.h>
-#include <asm/system.h>
/* Tile-specific routines to support <asm/bitops.h>. */
unsigned long _atomic_or(volatile unsigned long *p, unsigned long mask);
diff --git a/arch/tile/include/asm/bitops_64.h b/arch/tile/include/asm/bitops_64.h
index e9c8e381ee0..58d021a9834 100644
--- a/arch/tile/include/asm/bitops_64.h
+++ b/arch/tile/include/asm/bitops_64.h
@@ -17,7 +17,6 @@
#include <linux/compiler.h>
#include <linux/atomic.h>
-#include <asm/system.h>
/* See <asm/bitops.h> for API comments. */
diff --git a/arch/tile/include/asm/cacheflush.h b/arch/tile/include/asm/cacheflush.h
index e925f4bb498..0fc63c488ed 100644
--- a/arch/tile/include/asm/cacheflush.h
+++ b/arch/tile/include/asm/cacheflush.h
@@ -20,7 +20,6 @@
/* Keep includes the same across arches. */
#include <linux/mm.h>
#include <linux/cache.h>
-#include <asm/system.h>
#include <arch/icache.h>
/* Caches are physically-indexed and so don't need special treatment */
@@ -152,4 +151,14 @@ static inline void finv_buffer_local(void *buffer, size_t size)
*/
void finv_buffer_remote(void *buffer, size_t size, int hfh);
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible:
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}
+
#endif /* _ASM_TILE_CACHEFLUSH_H */
diff --git a/arch/tile/include/asm/exec.h b/arch/tile/include/asm/exec.h
new file mode 100644
index 00000000000..a714e195086
--- /dev/null
+++ b/arch/tile/include/asm/exec.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010 Tilera Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _ASM_TILE_EXEC_H
+#define _ASM_TILE_EXEC_H
+
+#define arch_align_stack(x) (x)
+
+#endif /* _ASM_TILE_EXEC_H */
diff --git a/arch/tile/include/asm/pgtable.h b/arch/tile/include/asm/pgtable.h
index 1a20b7ef8ea..67490910774 100644
--- a/arch/tile/include/asm/pgtable.h
+++ b/arch/tile/include/asm/pgtable.h
@@ -29,7 +29,6 @@
#include <linux/spinlock.h>
#include <asm/processor.h>
#include <asm/fixmap.h>
-#include <asm/system.h>
struct mm_struct;
struct vm_area_struct;
diff --git a/arch/tile/include/asm/setup.h b/arch/tile/include/asm/setup.h
index 7caf0f36b03..e58613e0752 100644
--- a/arch/tile/include/asm/setup.h
+++ b/arch/tile/include/asm/setup.h
@@ -31,6 +31,28 @@ void early_panic(const char *fmt, ...);
void warn_early_printk(void);
void __init disable_early_printk(void);
+/* Init-time routine to do tile-specific per-cpu setup. */
+void setup_cpu(int boot);
+
+/* User-level DMA management functions */
+void grant_dma_mpls(void);
+void restrict_dma_mpls(void);
+
+#ifdef CONFIG_HARDWALL
+/* User-level network management functions */
+void reset_network_state(void);
+void grant_network_mpls(void);
+void restrict_network_mpls(void);
+struct task_struct;
+int hardwall_deactivate(struct task_struct *task);
+
+/* Hook hardwall code into changes in affinity. */
+#define arch_set_cpus_allowed(p, new_mask) do { \
+ if (p->thread.hardwall && !cpumask_equal(&p->cpus_allowed, new_mask)) \
+ hardwall_deactivate(p); \
+} while (0)
+#endif
+
#endif /* __KERNEL__ */
#endif /* _ASM_TILE_SETUP_H */
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
index a5e4208d34f..c0a77b38d39 100644
--- a/arch/tile/include/asm/spinlock_32.h
+++ b/arch/tile/include/asm/spinlock_32.h
@@ -19,7 +19,6 @@
#include <linux/atomic.h>
#include <asm/page.h>
-#include <asm/system.h>
#include <linux/compiler.h>
/*
diff --git a/arch/tile/include/asm/switch_to.h b/arch/tile/include/asm/switch_to.h
new file mode 100644
index 00000000000..1d48c5fee8b
--- /dev/null
+++ b/arch/tile/include/asm/switch_to.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2010 Tilera Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _ASM_TILE_SWITCH_TO_H
+#define _ASM_TILE_SWITCH_TO_H
+
+#include <arch/sim_def.h>
+
+/*
+ * switch_to(n) should switch tasks to task nr n, first
+ * checking that n isn't the current task, in which case it does nothing.
+ * The number of callee-saved registers saved on the kernel stack
+ * is defined here for use in copy_thread() and must agree with __switch_to().
+ */
+#define CALLEE_SAVED_FIRST_REG 30
+#define CALLEE_SAVED_REGS_COUNT 24 /* r30 to r52, plus an empty to align */
+
+#ifndef __ASSEMBLY__
+
+struct task_struct;
+
+/*
+ * Pause the DMA engine and static network before task switching.
+ */
+#define prepare_arch_switch(next) _prepare_arch_switch(next)
+void _prepare_arch_switch(struct task_struct *next);
+
+struct task_struct;
+#define switch_to(prev, next, last) ((last) = _switch_to((prev), (next)))
+extern struct task_struct *_switch_to(struct task_struct *prev,
+ struct task_struct *next);
+
+/* Helper function for _switch_to(). */
+extern struct task_struct *__switch_to(struct task_struct *prev,
+ struct task_struct *next,
+ unsigned long new_system_save_k_0);
+
+/* Address that switched-away from tasks are at. */
+extern unsigned long get_switch_to_pc(void);
+
+/*
+ * Kernel threads can check to see if they need to migrate their
+ * stack whenever they return from a context switch; for user
+ * threads, we defer until they are returning to user-space.
+ */
+#define finish_arch_switch(prev) do { \
+ if (unlikely((prev)->state == TASK_DEAD)) \
+ __insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_OS_EXIT | \
+ ((prev)->pid << _SIM_CONTROL_OPERATOR_BITS)); \
+ __insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_OS_SWITCH | \
+ (current->pid << _SIM_CONTROL_OPERATOR_BITS)); \
+ if (current->mm == NULL && !kstack_hash && \
+ current_thread_info()->homecache_cpu != smp_processor_id()) \
+ homecache_migrate_kthread(); \
+} while (0)
+
+/* Support function for forking a new task. */
+void ret_from_fork(void);
+
+/* Called from ret_from_fork() when a new process starts up. */
+struct task_struct *sim_notify_fork(struct task_struct *prev);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_TILE_SWITCH_TO_H */
diff --git a/arch/tile/include/asm/timex.h b/arch/tile/include/asm/timex.h
index 29921f0b86d..dc987d53e2a 100644
--- a/arch/tile/include/asm/timex.h
+++ b/arch/tile/include/asm/timex.h
@@ -29,11 +29,13 @@ typedef unsigned long long cycles_t;
#if CHIP_HAS_SPLIT_CYCLE()
cycles_t get_cycles(void);
+#define get_cycles_low() __insn_mfspr(SPR_CYCLE_LOW)
#else
static inline cycles_t get_cycles(void)
{
return __insn_mfspr(SPR_CYCLE);
}
+#define get_cycles_low() __insn_mfspr(SPR_CYCLE) /* just get all 64 bits */
#endif
cycles_t get_clock_rate(void);
diff --git a/arch/tile/include/asm/unaligned.h b/arch/tile/include/asm/unaligned.h
index 137e2de5b10..37dfbe59887 100644
--- a/arch/tile/include/asm/unaligned.h
+++ b/arch/tile/include/asm/unaligned.h
@@ -21,4 +21,19 @@
#define get_unaligned __get_unaligned_le
#define put_unaligned __put_unaligned_le
+/*
+ * Is the kernel doing fixups of unaligned accesses? If <0, no kernel
+ * intervention occurs and SIGBUS is delivered with no data address
+ * info. If 0, the kernel single-steps the instruction to discover
+ * the data address to provide with the SIGBUS. If 1, the kernel does
+ * a fixup.
+ */
+extern int unaligned_fixup;
+
+/* Is the kernel printing on each unaligned fixup? */
+extern int unaligned_printk;
+
+/* Number of unaligned fixups performed */
+extern unsigned int unaligned_fixup_count;
+
#endif /* _ASM_TILE_UNALIGNED_H */