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-rw-r--r--arch/sparc/Kconfig2
-rw-r--r--arch/sparc/Makefile1
-rw-r--r--arch/sparc/include/asm/leon.h5
-rw-r--r--arch/sparc/include/asm/thread_info_32.h2
-rw-r--r--arch/sparc/include/asm/thread_info_64.h25
-rw-r--r--arch/sparc/kernel/Makefile1
-rw-r--r--arch/sparc/kernel/init_task.c22
-rw-r--r--arch/sparc/kernel/leon_smp.c9
-rw-r--r--arch/sparc/kernel/smp_32.c12
-rw-r--r--arch/sparc/kernel/smp_64.c12
-rw-r--r--arch/sparc/kernel/sun4d_smp.c8
-rw-r--r--arch/sparc/kernel/sun4m_smp.c7
12 files changed, 23 insertions, 83 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index d176c03274c..b2b9daf5905 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -31,11 +31,13 @@ config SPARC
select GENERIC_PCI_IOMAP
select HAVE_NMI_WATCHDOG if SPARC64
select HAVE_BPF_JIT
+ select GENERIC_SMP_IDLE_THREAD
config SPARC32
def_bool !64BIT
select GENERIC_ATOMIC64
select CLZ_TAB
+ select ARCH_THREAD_INFO_ALLOCATOR
config SPARC64
def_bool 64BIT
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index b9a72e2b8ac..541b8b075c7 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -50,7 +50,6 @@ endif
endif
head-y := arch/sparc/kernel/head_$(BITS).o
-head-y += arch/sparc/kernel/init_task.o
# See arch/sparc/Kbuild for the core part of the kernel
core-y += arch/sparc/
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 24f802beffb..07659124c14 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -270,6 +270,7 @@ struct leon2_cacheregs {
#include <linux/interrupt.h>
struct device_node;
+struct task_struct;
extern unsigned int leon_build_device_irq(unsigned int real_irq,
irq_flow_handler_t flow_handler,
const char *name, int do_ack);
@@ -289,7 +290,7 @@ extern int leon_smp_nrcpus(void);
extern void leon_clear_profile_irq(int cpu);
extern void leon_smp_done(void);
extern void leon_boot_cpus(void);
-extern int leon_boot_one_cpu(int i);
+extern int leon_boot_one_cpu(int i, struct task_struct *);
void leon_init_smp(void);
extern void cpu_idle(void);
extern void init_IRQ(void);
@@ -325,7 +326,7 @@ extern int leon_ipi_irq;
#define init_leon() do {} while (0)
#define leon_smp_done() do {} while (0)
#define leon_boot_cpus() do {} while (0)
-#define leon_boot_one_cpu(i) 1
+#define leon_boot_one_cpu(i, t) 1
#define leon_init_smp() do {} while (0)
#endif /* !defined(CONFIG_SPARC_LEON) */
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index cd0b2dc8fab..21a38946541 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -79,8 +79,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
*/
#define THREAD_INFO_ORDER 1
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
struct thread_info * alloc_thread_info_node(struct task_struct *tsk, int node);
void free_thread_info(struct thread_info *);
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 01d057fe6a3..7f0981b0945 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -138,32 +138,11 @@ register struct thread_info *current_thread_info_reg asm("g6");
/* thread information allocation */
#if PAGE_SHIFT == 13
-#define __THREAD_INFO_ORDER 1
+#define THREAD_SIZE_ORDER 1
#else /* PAGE_SHIFT == 13 */
-#define __THREAD_INFO_ORDER 0
+#define THREAD_SIZE_ORDER 0
#endif /* PAGE_SHIFT == 13 */
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO)
-#else
-#define THREAD_FLAGS (GFP_KERNEL)
-#endif
-
-#define alloc_thread_info_node(tsk, node) \
-({ \
- struct page *page = alloc_pages_node(node, THREAD_FLAGS, \
- __THREAD_INFO_ORDER); \
- struct thread_info *ret; \
- \
- ret = page ? page_address(page) : NULL; \
- ret; \
-})
-
-#define free_thread_info(ti) \
- free_pages((unsigned long)(ti),__THREAD_INFO_ORDER)
-
#define __thread_flag_byte_ptr(ti) \
((unsigned char *)(&((ti)->flags)))
#define __cur_thread_flag_byte_ptr __thread_flag_byte_ptr(current_thread_info())
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index c19dd022b9c..72308f9b009 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -6,7 +6,6 @@ asflags-y := -ansi
ccflags-y := -Werror
extra-y := head_$(BITS).o
-extra-y += init_task.o
# Undefine sparc when processing vmlinux.lds - it is used
# And teach CPP we are doing $(BITS) builds (for this case)
diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c
deleted file mode 100644
index 35f141a9f50..00000000000
--- a/arch/sparc/kernel/init_task.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct task_struct init_task = INIT_TASK(init_task);
-EXPORT_SYMBOL(init_task);
-
-/* .text section in head.S is aligned at 8k boundary and this gets linked
- * right after that so that the init_thread_union is aligned properly as well.
- * If this is not aligned on a 8k boundary, then you should change code
- * in etrap.S which assumes it.
- */
-union thread_union init_thread_union __init_task_data =
- { INIT_THREAD_INFO(init_task) };
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 29325bacba6..a469090faf9 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -203,16 +203,11 @@ void __init leon_boot_cpus(void)
}
-int __cpuinit leon_boot_one_cpu(int i)
+int __cpuinit leon_boot_one_cpu(int i, struct task_struct *idle)
{
-
- struct task_struct *p;
int timeout;
- /* Cook up an idler for this guy. */
- p = fork_idle(i);
-
- current_set[i] = task_thread_info(p);
+ current_set[i] = task_thread_info(idle);
/* See trampoline.S:leon_smp_cpu_startup for details...
* Initialize the contexts table
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index 57713758079..79db45e5134 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -256,21 +256,21 @@ void __init smp_prepare_boot_cpu(void)
set_cpu_possible(cpuid, true);
}
-int __cpuinit __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
- extern int __cpuinit smp4m_boot_one_cpu(int);
- extern int __cpuinit smp4d_boot_one_cpu(int);
+ extern int __cpuinit smp4m_boot_one_cpu(int, struct task_struct *);
+ extern int __cpuinit smp4d_boot_one_cpu(int, struct task_struct *);
int ret=0;
switch(sparc_cpu_model) {
case sun4m:
- ret = smp4m_boot_one_cpu(cpu);
+ ret = smp4m_boot_one_cpu(cpu, tidle);
break;
case sun4d:
- ret = smp4d_boot_one_cpu(cpu);
+ ret = smp4d_boot_one_cpu(cpu, tidle);
break;
case sparc_leon:
- ret = leon_boot_one_cpu(cpu);
+ ret = leon_boot_one_cpu(cpu, tidle);
break;
case sun4e:
printk("SUN4E\n");
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 3b1bd7c5016..f591598d92f 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -343,21 +343,17 @@ extern unsigned long sparc64_cpu_startup;
*/
static struct thread_info *cpu_new_thread = NULL;
-static int __cpuinit smp_boot_one_cpu(unsigned int cpu)
+static int __cpuinit smp_boot_one_cpu(unsigned int cpu, struct task_struct *idle)
{
unsigned long entry =
(unsigned long)(&sparc64_cpu_startup);
unsigned long cookie =
(unsigned long)(&cpu_new_thread);
- struct task_struct *p;
void *descr = NULL;
int timeout, ret;
- p = fork_idle(cpu);
- if (IS_ERR(p))
- return PTR_ERR(p);
callin_flag = 0;
- cpu_new_thread = task_thread_info(p);
+ cpu_new_thread = task_thread_info(idle);
if (tlb_type == hypervisor) {
#if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU)
@@ -1227,9 +1223,9 @@ void __devinit smp_fill_in_sib_core_maps(void)
}
}
-int __cpuinit __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
- int ret = smp_boot_one_cpu(cpu);
+ int ret = smp_boot_one_cpu(cpu, tidle);
if (!ret) {
cpumask_set_cpu(cpu, &smp_commenced_mask);
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index f9a1a33cbb2..ddaea31de58 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -129,18 +129,14 @@ void __init smp4d_boot_cpus(void)
local_ops->cache_all();
}
-int __cpuinit smp4d_boot_one_cpu(int i)
+int __cpuinit smp4d_boot_one_cpu(int i, struct task_struct *idle)
{
unsigned long *entry = &sun4d_cpu_startup;
- struct task_struct *p;
int timeout;
int cpu_node;
cpu_find_by_instance(i, &cpu_node, NULL);
- /* Cook up an idler for this guy. */
- p = fork_idle(i);
- current_set[i] = task_thread_info(p);
-
+ current_set[i] = task_thread_info(idle);
/*
* Initialize the contexts table
* Since the call to prom_startcpu() trashes the structure,
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 960e8ab47b1..128af730428 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -90,18 +90,15 @@ void __init smp4m_boot_cpus(void)
local_ops->cache_all();
}
-int __cpuinit smp4m_boot_one_cpu(int i)
+int __cpuinit smp4m_boot_one_cpu(int i, struct task_struct *idle)
{
unsigned long *entry = &sun4m_cpu_startup;
- struct task_struct *p;
int timeout;
int cpu_node;
cpu_find_by_mid(i, &cpu_node);
+ current_set[i] = task_thread_info(idle);
- /* Cook up an idler for this guy. */
- p = fork_idle(i);
- current_set[i] = task_thread_info(p);
/* See trampoline.S for details... */
entry += ((i - 1) * 3);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 17:07:34 +0000