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-rw-r--r--arch/sh/Kconfig1
-rw-r--r--arch/sh/boards/landisk/gio.c10
-rw-r--r--arch/sh/configs/landisk_defconfig1
-rw-r--r--arch/sh/configs/lboxre2_defconfig1
-rw-r--r--arch/sh/configs/se7705_defconfig1
-rw-r--r--arch/sh/configs/se7712_defconfig1
-rw-r--r--arch/sh/configs/se7750_defconfig1
-rw-r--r--arch/sh/kernel/smp.c62
-rw-r--r--arch/sh/kernel/stacktrace.c1
-rw-r--r--arch/sh/kernel/vmlinux_32.lds.S1
-rw-r--r--arch/sh/kernel/vmlinux_64.lds.S1
11 files changed, 24 insertions, 57 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9a854c8e527..3e7384f4619 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -688,6 +688,7 @@ config CRASH_DUMP
config SMP
bool "Symmetric multi-processing support"
depends on SYS_SUPPORTS_SMP
+ select USE_GENERIC_SMP_HELPERS
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/sh/boards/landisk/gio.c b/arch/sh/boards/landisk/gio.c
index 17025080db3..0c15b0a50b9 100644
--- a/arch/sh/boards/landisk/gio.c
+++ b/arch/sh/boards/landisk/gio.c
@@ -14,6 +14,7 @@
*/
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/smp_lock.h>
#include <linux/kdev_t.h>
#include <linux/cdev.h>
#include <linux/fs.h>
@@ -32,17 +33,20 @@ static int openCnt;
static int gio_open(struct inode *inode, struct file *filp)
{
int minor;
+ int ret = -ENOENT;
+ lock_kernel();
minor = MINOR(inode->i_rdev);
if (minor < DEVCOUNT) {
if (openCnt > 0) {
- return -EALREADY;
+ ret = -EALREADY;
} else {
openCnt++;
- return 0;
+ ret = 0;
}
}
- return -ENOENT;
+ unlock_kernel();
+ return ret;
}
static int gio_close(struct inode *inode, struct file *filp)
diff --git a/arch/sh/configs/landisk_defconfig b/arch/sh/configs/landisk_defconfig
index f52db125432..38f934ab50c 100644
--- a/arch/sh/configs/landisk_defconfig
+++ b/arch/sh/configs/landisk_defconfig
@@ -226,7 +226,6 @@ CONFIG_CPU_HAS_PTEA=y
#
CONFIG_SH_TMU=y
CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
CONFIG_SH_PCLK_FREQ=33333333
#
diff --git a/arch/sh/configs/lboxre2_defconfig b/arch/sh/configs/lboxre2_defconfig
index 9fa66d92a4e..b68b6cdbb78 100644
--- a/arch/sh/configs/lboxre2_defconfig
+++ b/arch/sh/configs/lboxre2_defconfig
@@ -231,7 +231,6 @@ CONFIG_CPU_HAS_PTEA=y
#
CONFIG_SH_TMU=y
CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
CONFIG_SH_PCLK_FREQ=40000000
#
diff --git a/arch/sh/configs/se7705_defconfig b/arch/sh/configs/se7705_defconfig
index 84717d85486..490dcbc2ce3 100644
--- a/arch/sh/configs/se7705_defconfig
+++ b/arch/sh/configs/se7705_defconfig
@@ -239,7 +239,6 @@ CONFIG_CPU_HAS_SR_RB=y
#
CONFIG_SH_TMU=y
CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
CONFIG_SH_PCLK_FREQ=33333333
#
diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig
index 240a1cef69a..2dd83af988f 100644
--- a/arch/sh/configs/se7712_defconfig
+++ b/arch/sh/configs/se7712_defconfig
@@ -236,7 +236,6 @@ CONFIG_CPU_HAS_SR_RB=y
#
CONFIG_SH_TMU=y
CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
CONFIG_SH_PCLK_FREQ=66666666
#
diff --git a/arch/sh/configs/se7750_defconfig b/arch/sh/configs/se7750_defconfig
index c60b6fd4fc4..167786f9a9b 100644
--- a/arch/sh/configs/se7750_defconfig
+++ b/arch/sh/configs/se7750_defconfig
@@ -235,7 +235,6 @@ CONFIG_CPU_HAS_PTEA=y
#
CONFIG_SH_TMU=y
CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
CONFIG_SH_PCLK_FREQ=33333333
#
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 5d039d168f5..60c50841143 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -36,13 +36,6 @@ EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_online_map;
EXPORT_SYMBOL(cpu_online_map);
-static atomic_t cpus_booted = ATOMIC_INIT(0);
-
-/*
- * Run specified function on a particular processor.
- */
-void __smp_call_function(unsigned int cpu);
-
static inline void __init smp_store_cpu_info(unsigned int cpu)
{
struct sh_cpuinfo *c = cpu_data + cpu;
@@ -175,45 +168,20 @@ static void stop_this_cpu(void *unused)
void smp_send_stop(void)
{
- smp_call_function(stop_this_cpu, 0, 1, 0);
+ smp_call_function(stop_this_cpu, 0, 0);
}
-struct smp_fn_call_struct smp_fn_call = {
- .lock = __SPIN_LOCK_UNLOCKED(smp_fn_call.lock),
- .finished = ATOMIC_INIT(0),
-};
-
-/*
- * The caller of this wants the passed function to run on every cpu. If wait
- * is set, wait until all cpus have finished the function before returning.
- * The lock is here to protect the call structure.
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function(void (*func)(void *info), void *info, int retry, int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
{
- unsigned int nr_cpus = atomic_read(&cpus_booted);
- int i;
-
- /* Can deadlock when called with interrupts disabled */
- WARN_ON(irqs_disabled());
-
- spin_lock(&smp_fn_call.lock);
-
- atomic_set(&smp_fn_call.finished, 0);
- smp_fn_call.fn = func;
- smp_fn_call.data = info;
-
- for (i = 0; i < nr_cpus; i++)
- if (i != smp_processor_id())
- plat_send_ipi(i, SMP_MSG_FUNCTION);
-
- if (wait)
- while (atomic_read(&smp_fn_call.finished) != (nr_cpus - 1));
+ int cpu;
- spin_unlock(&smp_fn_call.lock);
+ for_each_cpu_mask(cpu, mask)
+ plat_send_ipi(cpu, SMP_MSG_FUNCTION);
+}
- return 0;
+void arch_send_call_function_single_ipi(int cpu)
+{
+ plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
}
/* Not really SMP stuff ... */
@@ -229,7 +197,7 @@ static void flush_tlb_all_ipi(void *info)
void flush_tlb_all(void)
{
- on_each_cpu(flush_tlb_all_ipi, 0, 1, 1);
+ on_each_cpu(flush_tlb_all_ipi, 0, 1);
}
static void flush_tlb_mm_ipi(void *mm)
@@ -255,7 +223,7 @@ void flush_tlb_mm(struct mm_struct *mm)
preempt_disable();
if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
- smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1, 1);
+ smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1);
} else {
int i;
for (i = 0; i < num_online_cpus(); i++)
@@ -292,7 +260,7 @@ void flush_tlb_range(struct vm_area_struct *vma,
fd.vma = vma;
fd.addr1 = start;
fd.addr2 = end;
- smp_call_function(flush_tlb_range_ipi, (void *)&fd, 1, 1);
+ smp_call_function(flush_tlb_range_ipi, (void *)&fd, 1);
} else {
int i;
for (i = 0; i < num_online_cpus(); i++)
@@ -316,7 +284,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
fd.addr1 = start;
fd.addr2 = end;
- on_each_cpu(flush_tlb_kernel_range_ipi, (void *)&fd, 1, 1);
+ on_each_cpu(flush_tlb_kernel_range_ipi, (void *)&fd, 1);
}
static void flush_tlb_page_ipi(void *info)
@@ -335,7 +303,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
fd.vma = vma;
fd.addr1 = page;
- smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1, 1);
+ smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1);
} else {
int i;
for (i = 0; i < num_online_cpus(); i++)
@@ -359,6 +327,6 @@ void flush_tlb_one(unsigned long asid, unsigned long vaddr)
fd.addr1 = asid;
fd.addr2 = vaddr;
- smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1, 1);
+ smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1);
local_flush_tlb_one(asid, vaddr);
}
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index d41e561be20..1b2ae35c4a7 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -34,3 +34,4 @@ void save_stack_trace(struct stack_trace *trace)
}
}
}
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/sh/kernel/vmlinux_32.lds.S b/arch/sh/kernel/vmlinux_32.lds.S
index c7113786ecd..7b4b82bd115 100644
--- a/arch/sh/kernel/vmlinux_32.lds.S
+++ b/arch/sh/kernel/vmlinux_32.lds.S
@@ -44,7 +44,6 @@ SECTIONS
_etext = .; /* End of text section */
- BUG_TABLE
NOTES
RO_DATA(PAGE_SIZE)
diff --git a/arch/sh/kernel/vmlinux_64.lds.S b/arch/sh/kernel/vmlinux_64.lds.S
index d1e177009a4..33fa4645140 100644
--- a/arch/sh/kernel/vmlinux_64.lds.S
+++ b/arch/sh/kernel/vmlinux_64.lds.S
@@ -65,7 +65,6 @@ SECTIONS
_etext = .; /* End of text section */
- BUG_TABLE
NOTES
RO_DATA(PAGE_SIZE)
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-24 01:24:40 +0000