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authorPaul Mackerras <paulus@samba.org>2008-04-14 21:11:02 +1000
committerPaul Mackerras <paulus@samba.org>2008-04-14 21:11:02 +1000
commitac7c5353b189e10cf5dd27399f64f7b013abffc6 (patch)
tree8222d92b774c256d6ec4399c716d76b3f05ddc4b /arch/powerpc/kernel
parenta8f75ea70c58546205fb7673be41455b9da5d9a7 (diff)
parent120dd64cacd4fb796bca0acba3665553f1d9ecaa (diff)
downloadblackbird-op-linux-ac7c5353b189e10cf5dd27399f64f7b013abffc6.tar.gz
blackbird-op-linux-ac7c5353b189e10cf5dd27399f64f7b013abffc6.zip
Merge branch 'linux-2.6'
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/head_64.S13
-rw-r--r--arch/powerpc/kernel/irq.c1
-rw-r--r--arch/powerpc/kernel/process.c10
-rw-r--r--arch/powerpc/kernel/rtas_flash.c2
4 files changed, 13 insertions, 13 deletions
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 11b4f6d9ffce..d3aee08e6814 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -1387,12 +1387,14 @@ __secondary_start:
#ifdef CONFIG_PPC_ISERIES
BEGIN_FW_FTR_SECTION
ori r4,r4,MSR_EE
+ li r8,1
+ stb r8,PACAHARDIRQEN(r13)
END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
BEGIN_FW_FTR_SECTION
- stb r7,PACASOFTIRQEN(r13)
stb r7,PACAHARDIRQEN(r13)
END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES)
+ stb r7,PACASOFTIRQEN(r13)
mtspr SPRN_SRR0,r3
mtspr SPRN_SRR1,r4
@@ -1520,15 +1522,14 @@ _INIT_GLOBAL(start_here_common)
#ifdef CONFIG_PPC_ISERIES
BEGIN_FW_FTR_SECTION
mfmsr r5
- ori r5,r5,MSR_EE /* Hard Enabled */
+ ori r5,r5,MSR_EE /* Hard Enabled on iSeries*/
mtmsrd r5
+ li r5,1
END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
-BEGIN_FW_FTR_SECTION
- stb r5,PACAHARDIRQEN(r13)
-END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES)
+ stb r5,PACAHARDIRQEN(r13) /* Hard Disabled on others */
- bl .start_kernel
+ bl .start_kernel
/* Not reached */
BUG_OPCODE
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index b0e5deb4274f..292163f5b39a 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -143,7 +143,6 @@ void local_irq_restore(unsigned long en)
*/
if (local_paca->lppaca_ptr->int_dword.any_int)
iseries_handle_interrupts();
- return;
}
/*
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 8d506d86e2df..a27910207c7e 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -241,8 +241,12 @@ void discard_lazy_cpu_state(void)
}
#endif /* CONFIG_SMP */
+static DEFINE_PER_CPU(unsigned long, current_dabr);
+
int set_dabr(unsigned long dabr)
{
+ __get_cpu_var(current_dabr) = dabr;
+
#ifdef CONFIG_PPC_MERGE /* XXX for now */
if (ppc_md.set_dabr)
return ppc_md.set_dabr(dabr);
@@ -259,8 +263,6 @@ int set_dabr(unsigned long dabr)
DEFINE_PER_CPU(struct cpu_usage, cpu_usage_array);
#endif
-static DEFINE_PER_CPU(unsigned long, current_dabr);
-
struct task_struct *__switch_to(struct task_struct *prev,
struct task_struct *new)
{
@@ -325,10 +327,8 @@ struct task_struct *__switch_to(struct task_struct *prev,
#endif /* CONFIG_SMP */
- if (unlikely(__get_cpu_var(current_dabr) != new->thread.dabr)) {
+ if (unlikely(__get_cpu_var(current_dabr) != new->thread.dabr))
set_dabr(new->thread.dabr);
- __get_cpu_var(current_dabr) = new->thread.dabr;
- }
new_thread = &new->thread;
old_thread = &current->thread;
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index e1756e112344..627f126d1848 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -356,7 +356,7 @@ static int rtas_excl_open(struct inode *inode, struct file *file)
/* Enforce exclusive open with use count of PDE */
spin_lock(&flash_file_open_lock);
- if (atomic_read(&dp->count) > 1) {
+ if (atomic_read(&dp->count) > 2) {
spin_unlock(&flash_file_open_lock);
return -EBUSY;
}
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