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Diffstat (limited to 'arch/blackfin/kernel/process.c')
-rw-r--r--arch/blackfin/kernel/process.c32
1 files changed, 22 insertions, 10 deletions
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 0c3ea118b65..33e2e8993f7 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,6 +39,7 @@
#include <asm/blackfin.h>
#include <asm/fixed_code.h>
+#include <asm/mem_map.h>
asmlinkage void ret_from_fork(void);
@@ -81,11 +82,14 @@ void cpu_idle(void)__attribute__((l1_text));
*/
static void default_idle(void)
{
- local_irq_disable();
+#ifdef CONFIG_IPIPE
+ ipipe_suspend_domain();
+#endif
+ local_irq_disable_hw();
if (!need_resched())
idle_with_irq_disabled();
- local_irq_enable();
+ local_irq_enable_hw();
}
/*
@@ -154,6 +158,7 @@ pid_t kernel_thread(int (*fn) (void *), void *arg, unsigned long flags)
return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL,
NULL);
}
+EXPORT_SYMBOL(kernel_thread);
void flush_thread(void)
{
@@ -170,6 +175,13 @@ asmlinkage int bfin_clone(struct pt_regs *regs)
unsigned long clone_flags;
unsigned long newsp;
+#ifdef __ARCH_SYNC_CORE_DCACHE
+ if (current->rt.nr_cpus_allowed == num_possible_cpus()) {
+ current->cpus_allowed = cpumask_of_cpu(smp_processor_id());
+ current->rt.nr_cpus_allowed = 1;
+ }
+#endif
+
/* syscall2 puts clone_flags in r0 and usp in r1 */
clone_flags = regs->r0;
newsp = regs->r1;
@@ -337,22 +349,22 @@ int _access_ok(unsigned long addr, unsigned long size)
if (addr >= (unsigned long)__init_begin &&
addr + size <= (unsigned long)__init_end)
return 1;
- if (addr >= L1_SCRATCH_START
- && addr + size <= L1_SCRATCH_START + L1_SCRATCH_LENGTH)
+ if (addr >= get_l1_scratch_start()
+ && addr + size <= get_l1_scratch_start() + L1_SCRATCH_LENGTH)
return 1;
#if L1_CODE_LENGTH != 0
- if (addr >= L1_CODE_START + (_etext_l1 - _stext_l1)
- && addr + size <= L1_CODE_START + L1_CODE_LENGTH)
+ if (addr >= get_l1_code_start() + (_etext_l1 - _stext_l1)
+ && addr + size <= get_l1_code_start() + L1_CODE_LENGTH)
return 1;
#endif
#if L1_DATA_A_LENGTH != 0
- if (addr >= L1_DATA_A_START + (_ebss_l1 - _sdata_l1)
- && addr + size <= L1_DATA_A_START + L1_DATA_A_LENGTH)
+ if (addr >= get_l1_data_a_start() + (_ebss_l1 - _sdata_l1)
+ && addr + size <= get_l1_data_a_start() + L1_DATA_A_LENGTH)
return 1;
#endif
#if L1_DATA_B_LENGTH != 0
- if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1)
- && addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH)
+ if (addr >= get_l1_data_b_start() + (_ebss_b_l1 - _sdata_b_l1)
+ && addr + size <= get_l1_data_b_start() + L1_DATA_B_LENGTH)
return 1;
#endif
#if L2_LENGTH != 0