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-rw-r--r--arch/blackfin/Kconfig8
-rw-r--r--arch/blackfin/include/asm/dma-mapping.h10
-rw-r--r--arch/blackfin/include/asm/mem_init.h2
-rw-r--r--arch/blackfin/include/asm/uaccess.h1
-rw-r--r--arch/blackfin/include/asm/unistd.h2
-rw-r--r--arch/blackfin/kernel/dma-mapping.c23
-rw-r--r--arch/blackfin/kernel/process.c11
-rw-r--r--arch/blackfin/kernel/signal.c12
-rw-r--r--arch/blackfin/kernel/time-ts.c6
-rw-r--r--arch/blackfin/kernel/time.c6
-rw-r--r--arch/blackfin/mach-common/ints-priority.c4
11 files changed, 33 insertions, 52 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index b6f3ad5441c..e98f3248c8a 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -24,7 +24,6 @@ config BLACKFIN
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_IDE
- select HAVE_IRQ_WORK
select HAVE_KERNEL_GZIP if RAMKERNEL
select HAVE_KERNEL_BZIP2 if RAMKERNEL
select HAVE_KERNEL_LZMA if RAMKERNEL
@@ -38,7 +37,6 @@ config BLACKFIN
select HAVE_GENERIC_HARDIRQS
select GENERIC_ATOMIC64
select GENERIC_IRQ_PROBE
- select IRQ_PER_CPU if SMP
select USE_GENERIC_SMP_HELPERS if SMP
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
select GENERIC_SMP_IDLE_THREAD
@@ -562,8 +560,7 @@ choice
accurate - This option is therefore marked experimental.
config BFIN_KERNEL_CLOCK_MEMINIT_CALC
- bool "Calculate Timings (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+ bool "Calculate Timings"
config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
bool "Provide accurate Timings based on target SCLK"
@@ -1120,7 +1117,7 @@ endchoice
comment "Memory Protection Unit"
config MPU
- bool "Enable the memory protection unit (EXPERIMENTAL)"
+ bool "Enable the memory protection unit"
default n
help
Use the processor's MPU to protect applications from accessing
@@ -1442,7 +1439,6 @@ config BFIN_CPU_FREQ
config CPU_VOLTAGE
bool "CPU Voltage scaling"
- depends on EXPERIMENTAL
depends on CPU_FREQ
default n
help
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index bbf461076a0..054d9ec57d9 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -154,4 +154,14 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
_dma_sync((dma_addr_t)vaddr, size, dir);
}
+/* drivers/base/dma-mapping.c */
+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size);
+extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size);
+
+#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
+#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
+
#endif /* _BLACKFIN_DMA_MAPPING_H */
diff --git a/arch/blackfin/include/asm/mem_init.h b/arch/blackfin/include/asm/mem_init.h
index f019e9bcefe..9b33e724786 100644
--- a/arch/blackfin/include/asm/mem_init.h
+++ b/arch/blackfin/include/asm/mem_init.h
@@ -411,7 +411,7 @@ static struct ddr_config ddr_config_table[] __attribute__((section(".data_l1")))
.dmc_ddrcfg = 0x00000422,
.dmc_ddrtr0 = 0x20E0A424,
.dmc_ddrtr1 = 0x3020079E,
- .dmc_ddrtr2 = 0x0032020D,
+ .dmc_ddrtr2 = 0x0032050D,
.dmc_ddrmr = 0x00000842,
.dmc_ddrmr1 = 0x4,
},
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 461bb542e2e..57701c3b8a5 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -191,6 +191,7 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
memcpy((void __force *)to, from, n);
else
return n;
+ SSYNC();
return 0;
}
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index e943cb13004..04e83ea8d5c 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -18,8 +18,6 @@
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_RT_SIGACTION
-#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_VFORK
/*
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index e7be6532d6a..df437e52d9d 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -13,6 +13,7 @@
#include <linux/dma-mapping.h>
#include <linux/scatterlist.h>
#include <linux/export.h>
+#include <linux/bitmap.h>
static spinlock_t dma_page_lock;
static unsigned long *dma_page;
@@ -46,24 +47,17 @@ static inline unsigned int get_pages(size_t size)
static unsigned long __alloc_dma_pages(unsigned int pages)
{
unsigned long ret = 0, flags;
- int i, count = 0;
+ unsigned long start;
if (dma_initialized == 0)
dma_alloc_init(_ramend - DMA_UNCACHED_REGION, _ramend);
spin_lock_irqsave(&dma_page_lock, flags);
- for (i = 0; i < dma_pages;) {
- if (test_bit(i++, dma_page) == 0) {
- if (++count == pages) {
- while (count--)
- __set_bit(--i, dma_page);
-
- ret = dma_base + (i << PAGE_SHIFT);
- break;
- }
- } else
- count = 0;
+ start = bitmap_find_next_zero_area(dma_page, dma_pages, 0, pages, 0);
+ if (start < dma_pages) {
+ ret = dma_base + (start << PAGE_SHIFT);
+ bitmap_set(dma_page, start, pages);
}
spin_unlock_irqrestore(&dma_page_lock, flags);
return ret;
@@ -73,7 +67,6 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages)
{
unsigned long page = (addr - dma_base) >> PAGE_SHIFT;
unsigned long flags;
- int i;
if ((page + pages) > dma_pages) {
printk(KERN_ERR "%s: freeing outside range.\n", __func__);
@@ -81,9 +74,7 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages)
}
spin_lock_irqsave(&dma_page_lock, flags);
- for (i = page; i < page + pages; i++)
- __clear_bit(i, dma_page);
-
+ bitmap_clear(dma_page, page, pages);
spin_unlock_irqrestore(&dma_page_lock, flags);
}
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 3e16ad9b0a9..9782c0329c1 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,12 +39,6 @@ int nr_l1stack_tasks;
void *l1_stack_base;
unsigned long l1_stack_len;
-/*
- * Powermanagement idle function, if any..
- */
-void (*pm_idle)(void) = NULL;
-EXPORT_SYMBOL(pm_idle);
-
void (*pm_power_off)(void) = NULL;
EXPORT_SYMBOL(pm_power_off);
@@ -81,18 +75,15 @@ void cpu_idle(void)
{
/* endless idle loop with no priority at all */
while (1) {
- void (*idle)(void) = pm_idle;
#ifdef CONFIG_HOTPLUG_CPU
if (cpu_is_offline(smp_processor_id()))
cpu_die();
#endif
- if (!idle)
- idle = default_idle;
tick_nohz_idle_enter();
rcu_idle_enter();
while (!need_resched())
- idle();
+ default_idle();
rcu_idle_exit();
tick_nohz_idle_exit();
preempt_enable_no_resched();
diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c
index 84b4be05840..b022af6c48f 100644
--- a/arch/blackfin/kernel/signal.c
+++ b/arch/blackfin/kernel/signal.c
@@ -37,11 +37,6 @@ struct rt_sigframe {
struct ucontext uc;
};
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
- return do_sigaltstack(uss, uoss, rdusp());
-}
-
static inline int
rt_restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *pr0)
{
@@ -100,7 +95,7 @@ asmlinkage int sys_rt_sigreturn(void)
if (rt_restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
goto badframe;
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->usp) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
return r0;
@@ -178,10 +173,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info,
/* Create the ucontext. */
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
- err |=
- __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(rdusp()), &frame->uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+ err |= __save_altstack(&frame->uc.uc_stack, rdusp());
err |= rt_setup_sigcontext(&frame->uc.uc_mcontext, regs);
err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index f608f02f29a..cb0a4845339 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -329,12 +329,6 @@ void bfin_coretmr_clockevent_init(void)
evt->broadcast = smp_timer_broadcast;
#endif
-
-#ifdef CONFIG_SMP
- evt->broadcast = smp_timer_broadcast;
-#endif
-
-
evt->name = "bfin_core_timer";
evt->rating = 350;
evt->irq = -1;
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index 2310b249675..3126b920a4a 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -85,7 +85,7 @@ time_sched_init(irqreturn_t(*timer_routine) (int, void *))
/*
* Should return useconds since last timer tick
*/
-u32 arch_gettimeoffset(void)
+static u32 blackfin_gettimeoffset(void)
{
unsigned long offset;
unsigned long clocks_per_jiffy;
@@ -141,6 +141,10 @@ void read_persistent_clock(struct timespec *ts)
void __init time_init(void)
{
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+ arch_gettimeoffset = blackfin_gettimeoffset;
+#endif
+
#ifdef CONFIG_RTC_DRV_BFIN
/* [#2663] hack to filter junk RTC values that would cause
* userspace to have to deal with time values greater than
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 83ff311fd6e..6c0c6816a51 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -1195,6 +1195,7 @@ static struct syscore_ops sec_pm_syscore_ops = {
.suspend = sec_suspend,
.resume = sec_resume,
};
+
#endif
#else
# define bfin_gpio_set_wake NULL
@@ -1596,7 +1597,10 @@ int __init init_arch_irq(void)
bfin_write_SEC_SCI(1, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN);
init_software_driven_irq();
+
+#ifdef CONFIG_PM
register_syscore_ops(&sec_pm_syscore_ops);
+#endif
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 05:34:21 +0000