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-rw-r--r--arch/sh/Kconfig4
-rw-r--r--arch/sh/Kconfig.cpu2
-rw-r--r--arch/sh/Makefile2
-rw-r--r--arch/sh/configs/sh7785lcr_32bit_defconfig2
-rw-r--r--arch/sh/include/asm/processor.h5
-rw-r--r--arch/sh/include/asm/thread_info.h11
-rw-r--r--arch/sh/include/asm/topology.h25
-rw-r--r--arch/sh/kernel/Makefile2
-rw-r--r--arch/sh/kernel/idle.c20
-rw-r--r--arch/sh/kernel/init_task.c30
-rw-r--r--arch/sh/kernel/process.c46
-rw-r--r--arch/sh/kernel/ptrace_32.c2
-rw-r--r--arch/sh/kernel/ptrace_64.c2
-rw-r--r--arch/sh/kernel/smp.c14
14 files changed, 11 insertions, 156 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 536e058fe8a2..3e723aaa5e18 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -28,6 +28,7 @@ config SUPERH
select RTC_LIB
select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW
+ select GENERIC_SMP_IDLE_THREAD
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
@@ -152,9 +153,6 @@ config ARCH_NO_VIRT_TO_BUS
config ARCH_HAS_DEFAULT_IDLE
def_bool y
-config ARCH_HAS_CPU_IDLE_WAIT
- def_bool y
-
config NO_IOPORT
def_bool !PCI
depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
index ddf096c7d8bf..770ff2d5b94d 100644
--- a/arch/sh/Kconfig.cpu
+++ b/arch/sh/Kconfig.cpu
@@ -1,7 +1,7 @@
menu "Processor features"
choice
- prompt "Endianess selection"
+ prompt "Endianness selection"
default CPU_LITTLE_ENDIAN
help
Some SuperH machines can be configured for either little or big
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 24875c8c1514..46edf070da1c 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -124,7 +124,7 @@ endif
export ld-bfd BITS
-head-y := arch/sh/kernel/init_task.o arch/sh/kernel/head_$(BITS).o
+head-y := arch/sh/kernel/head_$(BITS).o
core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/
diff --git a/arch/sh/configs/sh7785lcr_32bit_defconfig b/arch/sh/configs/sh7785lcr_32bit_defconfig
index 7b9c696ac5e0..9bdcf72ec06a 100644
--- a/arch/sh/configs/sh7785lcr_32bit_defconfig
+++ b/arch/sh/configs/sh7785lcr_32bit_defconfig
@@ -5,7 +5,7 @@ CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
-CONFIG_PERF_COUNTERS=y
+CONFIG_PERF_EVENTS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
CONFIG_PROFILING=y
diff --git a/arch/sh/include/asm/processor.h b/arch/sh/include/asm/processor.h
index 793b664ef7ff..3d14aeaef57c 100644
--- a/arch/sh/include/asm/processor.h
+++ b/arch/sh/include/asm/processor.h
@@ -86,10 +86,6 @@ struct sh_cpuinfo {
struct tlb_info itlb;
struct tlb_info dtlb;
-#ifdef CONFIG_SMP
- struct task_struct *idle;
-#endif
-
unsigned int phys_bits;
unsigned long flags;
} __attribute__ ((aligned(L1_CACHE_BYTES)));
@@ -103,7 +99,6 @@ extern struct sh_cpuinfo cpu_data[];
#define cpu_relax() barrier()
void default_idle(void);
-void cpu_idle_wait(void);
void stop_this_cpu(void *);
/* Forward decl */
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 25a13e534ffe..0c04ffc4f12c 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -98,22 +98,13 @@ static inline struct thread_info *current_thread_info(void)
return ti;
}
-/* thread information allocation */
-#if THREAD_SHIFT >= PAGE_SHIFT
-
#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
-#endif
-
-extern struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node);
-extern void free_thread_info(struct thread_info *ti);
extern void arch_task_cache_init(void);
-#define arch_task_cache_init arch_task_cache_init
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
+extern void arch_release_task_struct(struct task_struct *tsk);
extern void init_thread_xstate(void);
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
#endif /* __ASSEMBLY__ */
/*
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index 88e734069fa6..b0a282d65f6a 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -3,31 +3,6 @@
#ifdef CONFIG_NUMA
-/* sched_domains SD_NODE_INIT for sh machines */
-#define SD_NODE_INIT (struct sched_domain) { \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
- .min_interval = 8, \
- .max_interval = 32, \
- .busy_factor = 32, \
- .imbalance_pct = 125, \
- .cache_nice_tries = 2, \
- .busy_idx = 3, \
- .idle_idx = 2, \
- .newidle_idx = 0, \
- .wake_idx = 0, \
- .forkexec_idx = 0, \
- .flags = SD_LOAD_BALANCE \
- | SD_BALANCE_FORK \
- | SD_BALANCE_EXEC \
- | SD_BALANCE_NEWIDLE \
- | SD_SERIALIZE, \
- .last_balance = jiffies, \
- .balance_interval = 1, \
- .nr_balance_failed = 0, \
-}
-
#define cpu_to_node(cpu) ((void)(cpu),0)
#define parent_node(node) ((void)(node),0)
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 77f7ae1d4647..88571ff8eeec 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -2,7 +2,7 @@
# Makefile for the Linux/SuperH kernel.
#
-extra-y := head_$(BITS).o init_task.o vmlinux.lds
+extra-y := head_$(BITS).o vmlinux.lds
ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index ee226e20c20c..0c910163caa3 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -132,10 +132,6 @@ void __init select_idle_routine(void)
pm_idle = poll_idle;
}
-static void do_nothing(void *unused)
-{
-}
-
void stop_this_cpu(void *unused)
{
local_irq_disable();
@@ -144,19 +140,3 @@ void stop_this_cpu(void *unused)
for (;;)
cpu_sleep();
}
-
-/*
- * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
- * pm_idle and update to new pm_idle value. Required while changing pm_idle
- * handler on SMP systems.
- *
- * Caller must have changed pm_idle to the new value before the call. Old
- * pm_idle value will not be used by any CPU after the return of this function.
- */
-void cpu_idle_wait(void)
-{
- smp_mb();
- /* kick all the CPUs so that they exit out of pm_idle */
- smp_call_function(do_nothing, NULL, 1);
-}
-EXPORT_SYMBOL_GPL(cpu_idle_wait);
diff --git a/arch/sh/kernel/init_task.c b/arch/sh/kernel/init_task.c
deleted file mode 100644
index 11f2ea556a6b..000000000000
--- a/arch/sh/kernel/init_task.c
+++ /dev/null
@@ -1,30 +0,0 @@
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-#include <linux/fs.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct pt_regs fake_swapper_regs;
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is 8192-byte aligned due to the
- * way process stacks are handled. This is done by having a special
- * "init_task" linker map entry..
- */
-union thread_union init_thread_union __init_task_data =
- { INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
-EXPORT_SYMBOL(init_task);
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index f3f03e4c785d..e77feaf117ab 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -36,52 +36,10 @@ void free_thread_xstate(struct task_struct *tsk)
}
}
-#if THREAD_SHIFT < PAGE_SHIFT
-static struct kmem_cache *thread_info_cache;
-
-struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node)
-{
- struct thread_info *ti;
-#ifdef CONFIG_DEBUG_STACK_USAGE
- gfp_t mask = GFP_KERNEL | __GFP_ZERO;
-#else
- gfp_t mask = GFP_KERNEL;
-#endif
-
- ti = kmem_cache_alloc_node(thread_info_cache, mask, node);
- return ti;
-}
-
-void free_thread_info(struct thread_info *ti)
-{
- free_thread_xstate(ti->task);
- kmem_cache_free(thread_info_cache, ti);
-}
-
-void thread_info_cache_init(void)
-{
- thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
- THREAD_SIZE, SLAB_PANIC, NULL);
-}
-#else
-struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node)
-{
-#ifdef CONFIG_DEBUG_STACK_USAGE
- gfp_t mask = GFP_KERNEL | __GFP_ZERO;
-#else
- gfp_t mask = GFP_KERNEL;
-#endif
- struct page *page = alloc_pages_node(node, mask, THREAD_SIZE_ORDER);
-
- return page ? page_address(page) : NULL;
-}
-
-void free_thread_info(struct thread_info *ti)
+void arch_release_task_struct(struct task_struct *tsk)
{
- free_thread_xstate(ti->task);
- free_pages((unsigned long)ti, THREAD_SIZE_ORDER);
+ free_thread_xstate(tsk);
}
-#endif /* THREAD_SHIFT < PAGE_SHIFT */
void arch_task_cache_init(void)
{
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 9698671444e6..81f999a672f6 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -503,7 +503,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
{
long ret = 0;
- secure_computing(regs->regs[0]);
+ secure_computing_strict(regs->regs[0]);
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
tracehook_report_syscall_entry(regs))
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index bc81e07dc098..af90339dadcd 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -522,7 +522,7 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
{
long long ret = 0;
- secure_computing(regs->regs[9]);
+ secure_computing_strict(regs->regs[9]);
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
tracehook_report_syscall_entry(regs))
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index eaebdf6a5c77..b86e9ca79455 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -220,22 +220,10 @@ extern struct {
void *thread_info;
} stack_start;
-int __cpuinit __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tsk)
{
- struct task_struct *tsk;
unsigned long timeout;
- tsk = cpu_data[cpu].idle;
- if (!tsk) {
- tsk = fork_idle(cpu);
- if (IS_ERR(tsk)) {
- pr_err("Failed forking idle task for cpu %d\n", cpu);
- return PTR_ERR(tsk);
- }
-
- cpu_data[cpu].idle = tsk;
- }
-
per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
/* Fill in data in head.S for secondary cpus */
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-26 09:04:27 +0100