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-rw-r--r--arch/sh/Kconfig4
-rw-r--r--arch/sh/boards/mach-ecovec24/setup.c4
-rw-r--r--arch/sh/drivers/pci/pcie-sh7786.c2
-rw-r--r--arch/sh/include/asm/hugetlb.h1
-rw-r--r--arch/sh/include/asm/thread_info.h2
-rw-r--r--arch/sh/kernel/idle.c101
-rw-r--r--arch/sh/kernel/sh_bios.c4
-rw-r--r--arch/sh/kernel/smp.c2
-rw-r--r--arch/sh/mm/init.c26
9 files changed, 23 insertions, 123 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5e859633ce69..1ea597c6497a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -33,6 +33,7 @@ config SUPERH
select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW
select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_IDLE_POLL_SETUP
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
select GENERIC_STRNCPY_FROM_USER
@@ -148,9 +149,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
def_bool n
-config ARCH_HAS_DEFAULT_IDLE
- def_bool y
-
config NO_IOPORT
def_bool !PCI
depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index aaff7671101b..764530c85aa9 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -254,11 +254,13 @@ static int usbhs_get_id(struct platform_device *pdev)
return gpio_get_value(GPIO_PTB3);
}
-static void usbhs_phy_reset(struct platform_device *pdev)
+static int usbhs_phy_reset(struct platform_device *pdev)
{
/* enable vbus if HOST */
if (!gpio_get_value(GPIO_PTB3))
gpio_set_value(GPIO_PTB5, 1);
+
+ return 0;
}
static struct renesas_usbhs_platform_info usbhs_info = {
diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c
index c2c85f6cd738..a162a7f86b2e 100644
--- a/arch/sh/drivers/pci/pcie-sh7786.c
+++ b/arch/sh/drivers/pci/pcie-sh7786.c
@@ -35,7 +35,7 @@ static unsigned int nr_ports;
static struct sh7786_pcie_hwops {
int (*core_init)(void);
- async_func_ptr *port_init_hw;
+ async_func_t port_init_hw;
} *sh7786_pcie_hwops;
static struct resource sh7786_pci0_resources[] = {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index b3808c7d67b2..699255d6d1c6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -3,6 +3,7 @@
#include <asm/cacheflush.h>
#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
static inline int is_hugepage_only_range(struct mm_struct *mm,
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 7d5ac4e48485..45a93669289d 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -207,8 +207,6 @@ static inline bool test_and_clear_restore_sigmask(void)
return true;
}
-#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
-
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index 3d5a1b387cc0..2ea4483fd722 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -24,98 +24,24 @@
static void (*sh_idle)(void);
-static int hlt_counter;
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-__setup("nohlt", nohlt_setup);
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-__setup("hlt", hlt_setup);
-
-static inline int hlt_works(void)
-{
- return !hlt_counter;
-}
-
-/*
- * On SMP it's slightly faster (but much more power-consuming!)
- * to poll the ->work.need_resched flag instead of waiting for the
- * cross-CPU IPI to arrive. Use this option with caution.
- */
-static void poll_idle(void)
+void default_idle(void)
{
+ set_bl_bit();
local_irq_enable();
- while (!need_resched())
- cpu_relax();
+ /* Isn't this racy ? */
+ cpu_sleep();
+ clear_bl_bit();
}
-void default_idle(void)
+void arch_cpu_idle_dead(void)
{
- if (hlt_works()) {
- clear_thread_flag(TIF_POLLING_NRFLAG);
- smp_mb__after_clear_bit();
-
- set_bl_bit();
- if (!need_resched()) {
- local_irq_enable();
- cpu_sleep();
- } else
- local_irq_enable();
-
- set_thread_flag(TIF_POLLING_NRFLAG);
- clear_bl_bit();
- } else
- poll_idle();
+ play_dead();
}
-/*
- * The idle thread. There's no useful work to be done, so just try to conserve
- * power and have a low exit latency (ie sit in a loop waiting for somebody to
- * say that they'd like to reschedule)
- */
-void cpu_idle(void)
+void arch_cpu_idle(void)
{
- unsigned int cpu = smp_processor_id();
-
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
-
- while (!need_resched()) {
- check_pgt_cache();
- rmb();
-
- if (cpu_is_offline(cpu))
- play_dead();
-
- local_irq_disable();
- /* Don't trace irqs off for idle */
- stop_critical_timings();
- if (cpuidle_idle_call())
- sh_idle();
- /*
- * Sanity check to ensure that sh_idle() returns
- * with IRQs enabled
- */
- WARN_ON(irqs_disabled());
- start_critical_timings();
- }
-
- rcu_idle_exit();
- tick_nohz_idle_exit();
- schedule_preempt_disabled();
- }
+ if (cpuidle_idle_call())
+ sh_idle();
}
void __init select_idle_routine(void)
@@ -123,13 +49,8 @@ void __init select_idle_routine(void)
/*
* If a platform has set its own idle routine, leave it alone.
*/
- if (sh_idle)
- return;
-
- if (hlt_works())
+ if (!sh_idle)
sh_idle = default_idle;
- else
- sh_idle = poll_idle;
}
void stop_this_cpu(void *unused)
diff --git a/arch/sh/kernel/sh_bios.c b/arch/sh/kernel/sh_bios.c
index 47475cca068a..fe584e516964 100644
--- a/arch/sh/kernel/sh_bios.c
+++ b/arch/sh/kernel/sh_bios.c
@@ -104,6 +104,7 @@ void sh_bios_vbr_reload(void)
);
}
+#ifdef CONFIG_EARLY_PRINTK
/*
* Print a string through the BIOS
*/
@@ -144,8 +145,6 @@ static struct console bios_console = {
.index = -1,
};
-static struct console *early_console;
-
static int __init setup_early_printk(char *buf)
{
int keep_early = 0;
@@ -170,3 +169,4 @@ static int __init setup_early_printk(char *buf)
return 0;
}
early_param("earlyprintk", setup_early_printk);
+#endif
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 2062aa88af41..45696451f0ea 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -203,7 +203,7 @@ asmlinkage void __cpuinit start_secondary(void)
set_cpu_online(cpu, true);
per_cpu(cpu_state, cpu) = CPU_ONLINE;
- cpu_idle();
+ cpu_startup_entry(CPUHP_ONLINE);
}
extern struct {
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 105794037143..20f9ead650d3 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -417,15 +417,13 @@ void __init mem_init(void)
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
- unsigned long node_pages = 0;
void *node_high_memory;
num_physpages += pgdat->node_present_pages;
if (pgdat->node_spanned_pages)
- node_pages = free_all_bootmem_node(pgdat);
+ totalram_pages += free_all_bootmem_node(pgdat);
- totalram_pages += node_pages;
node_high_memory = (void *)__va((pgdat->node_start_pfn +
pgdat->node_spanned_pages) <<
@@ -501,31 +499,13 @@ void __init mem_init(void)
void free_initmem(void)
{
- unsigned long addr;
-
- addr = (unsigned long)(&__init_begin);
- for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages++;
- }
- printk("Freeing unused kernel memory: %ldk freed\n",
- ((unsigned long)&__init_end -
- (unsigned long)&__init_begin) >> 10);
+ free_initmem_default(0);
}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- unsigned long p;
- for (p = start; p < end; p += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(p));
- init_page_count(virt_to_page(p));
- free_page(p);
- totalram_pages++;
- }
- printk("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+ free_reserved_area(start, end, 0, "initrd");
}
#endif
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