[Xenomai-git] Philippe Gerum : powerpc: upgrade legacy I-pipe support to 2.4.25-ppc-2. 1-00
Module: xenomai-head
Branch: master
Commit: 97d2daf7922f2f1a26c7f062695cf0f08210c25f
URL:
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=97d2daf7922f2f1a26c7f062695cf0f08210c25f
Author: Philippe Gerum
Date: Sun Jul 19 23:26:10 2009 +0200
powerpc: upgrade legacy I-pipe support to 2.4.25-ppc-2.1-00
---
...ch => adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch} | 136
1 files changed, 113 insertions(+), 23 deletions(-)
diff --git a/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.0-01.patch
b/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch
similarity index 97%
rename from ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.0-01.patch
rename to ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch
index 5a2860f..ca9a892 100644
--- a/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.0-01.patch
+++ b/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch
@@ -95,7 +95,7 @@ index d19d49d..cdb86ff 100644
andi. r3,r3,MSR_PR
beq+do_signal_ret /* if so, check need_resched and signals */
diff --git a/arch/ppc/kernel/head.S b/arch/ppc/kernel/head.S
-index 7b9e0c2..2605305 100644
+index 7b9e0c2..befb024 100644
--- a/arch/ppc/kernel/head.S
+++ b/arch/ppc/kernel/head.S
@@ -435,7 +435,11 @@ HardwareInterrupt:
@@ -123,6 +123,47 @@ index 7b9e0c2..2605305 100644
.long ret_from_intercept
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
+@@ -1103,7 +,12 @@ giveup_altivec:
+ */
+ .globl giveup_fpu
+ giveup_fpu:
++#ifdef CONFIG_IPIPE
++ mfmsr r6
++ rlwinm r5,r6,0,17,15 /* clear MSR_EE */
++#else
+ mfmsr r5
++#endif
+ ori r5,r5,MSR_FP
+ SYNC_601
+ ISYNC_601
+@@ -,7 +1124,7 @@ giveup_fpu:
+ SYNC_601
+ isync
+ cmpi0,r3,0
+- beqlr- /* if no previous owner, done */
++ beq-2f /* if no previous owner, done */
+ addir3,r3,THREAD/* want THREAD of task */
+ lwz r5,PT_REGS(r3)
+ cmpi0,r5,0
+@@ -1129,6 +1142,18 @@ giveup_fpu:
+ lis r4,last_task_used_m...@ha
+ stw r5,last_task_used_m...@l(r4)
+ #endif /* CONFIG_SMP */
++2:
++#ifdef CONFIG_IPIPE /* restore interrupt state */
++ andi. r6,r6,MSR_EE
++ beqlr
++ mfmsr r5
++ ori r5,r5,MSR_EE
++ SYNC_601
++ ISYNC_601
++ mtmsr r5
++ SYNC_601
++ isync
++#endif
+ blr
+
+ /*
diff --git a/arch/ppc/kernel/head_440.S b/arch/ppc/kernel/head_440.S
index a52bf16..d8cbb41 100644
--- a/arch/ppc/kernel/head_440.S
@@ -998,6 +1039,29 @@ index d90d323..513c65d 100644
EXPORT_SYMBOL(timer_interrupt_intercept);
EXPORT_SYMBOL(timer_interrupt);
EXPORT_SYMBOL(do_IRQ_intercept);
+diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
+index b78fee1..05b9286 100644
+--- a/arch/ppc/kernel/process.c
b/arch/ppc/kernel/process.c
+@@ -211,7 +211,7 @@ _switch_to(struct task_struct *prev, struct task_struct
*new,
+ struct task_struct **last)
+ {
+ struct thread_struct *new_thread, *old_thread;
+- unsigned long s;
++ unsigned long s, flags;
+
+ __save_flags(s);
+ __cli();
+@@ -276,7 +276,9 @@ _switch_to(struct task_struct *prev, struct task_struct
*new,
+ #endif
+ new_thread = &new->thread;
+ old_thread = ¤t->thread;
++ local_irq_save_hw_cond(flags);
+ *last = _switch(old_thread, new_thread);
++ local_irq_restore_hw_cond(flags);
+ __restore_flags(s);
+ }
+
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index aa4eaff..6f37807 100644
--- a/arch/ppc/kernel/traps.c
@@ -1140,20 +1204,6 @@ index 19fe78e..a3b36f8 100644
#if defined(CONFIG_XMON) || defined(CONFIG_KGDB)
if (debugger_fault_handler && regs->trap == 0x300) {
debugger_fault_handler(regs);
-diff --git a/arch/ppc/platforms/icecube.c b/arch/ppc/platforms/icecube.c
-index 40b6040..c35c2fa 100644
a/arch/ppc/platforms/icecube.c
-+++ b/arch/ppc/platforms/icecube.c
-@@ -46,6 +46,9 @@
- unsigned char __res[sizeof(bd_t)];
- #endif
-
-+void
-+mpc5xxx_progress(char *s, unsigned short hex);
-+
- extern int mpc5xxx_setkeycode(unsigned int scancode, unsigned int keycode);
- extern int mpc5xxx_getkeycode(unsigned int scancode);
- extern int mpc5xxx_translate(unsigned char scancode, unsigned char *keycode,
diff --git a/include/asm-ppc/hw_irq.h b/include/asm-ppc/hw_irq.h
index 8f0e170..ba649dc 100644
--- a/include/asm-ppc/hw_irq.h
@@ -1257,7 +1307,7 @@ index 8f0e170..ba649dc 100644
extern void do_lost_interrupts(unsigned long);
diff --git a/include/asm-ppc/ipipe.h b/include/asm-ppc/ipipe.h
new file mode 100644
-index 000..c4f52a0
+index 000..6e6fad1
--- /dev/null
+++ b/include/asm-ppc/ipipe.h
@@ -0,0 +1,183 @@
@@ -1301,10 +1351,10 @@ index 000..c4f52a0
+#include
+#include
+
-+#define IPIP
[Xenomai-git] Philippe Gerum : powerpc: upgrade legacy I-pipe support to 2.4.25-ppc-2. 1-00
Module: xenomai-2.4
Branch: master
Commit: e9d1e36e8da5b670b44f7a7d4af18a55956decbc
URL:
http://git.xenomai.org/?p=xenomai-2.4.git;a=commit;h=e9d1e36e8da5b670b44f7a7d4af18a55956decbc
Author: Philippe Gerum
Date: Sun Jul 19 13:20:11 2009 +0200
powerpc: upgrade legacy I-pipe support to 2.4.25-ppc-2.1-00
This patch fixes FPU issues induced by real-time activity.
---
...ch => adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch} | 136
1 files changed, 113 insertions(+), 23 deletions(-)
diff --git a/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.0-01.patch
b/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch
similarity index 97%
rename from ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.0-01.patch
rename to ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch
index 5a2860f..ca9a892 100644
--- a/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.0-01.patch
+++ b/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-DENX-2.1-00.patch
@@ -95,7 +95,7 @@ index d19d49d..cdb86ff 100644
andi. r3,r3,MSR_PR
beq+do_signal_ret /* if so, check need_resched and signals */
diff --git a/arch/ppc/kernel/head.S b/arch/ppc/kernel/head.S
-index 7b9e0c2..2605305 100644
+index 7b9e0c2..befb024 100644
--- a/arch/ppc/kernel/head.S
+++ b/arch/ppc/kernel/head.S
@@ -435,7 +435,11 @@ HardwareInterrupt:
@@ -123,6 +123,47 @@ index 7b9e0c2..2605305 100644
.long ret_from_intercept
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
+@@ -1103,7 +,12 @@ giveup_altivec:
+ */
+ .globl giveup_fpu
+ giveup_fpu:
++#ifdef CONFIG_IPIPE
++ mfmsr r6
++ rlwinm r5,r6,0,17,15 /* clear MSR_EE */
++#else
+ mfmsr r5
++#endif
+ ori r5,r5,MSR_FP
+ SYNC_601
+ ISYNC_601
+@@ -,7 +1124,7 @@ giveup_fpu:
+ SYNC_601
+ isync
+ cmpi0,r3,0
+- beqlr- /* if no previous owner, done */
++ beq-2f /* if no previous owner, done */
+ addir3,r3,THREAD/* want THREAD of task */
+ lwz r5,PT_REGS(r3)
+ cmpi0,r5,0
+@@ -1129,6 +1142,18 @@ giveup_fpu:
+ lis r4,last_task_used_m...@ha
+ stw r5,last_task_used_m...@l(r4)
+ #endif /* CONFIG_SMP */
++2:
++#ifdef CONFIG_IPIPE /* restore interrupt state */
++ andi. r6,r6,MSR_EE
++ beqlr
++ mfmsr r5
++ ori r5,r5,MSR_EE
++ SYNC_601
++ ISYNC_601
++ mtmsr r5
++ SYNC_601
++ isync
++#endif
+ blr
+
+ /*
diff --git a/arch/ppc/kernel/head_440.S b/arch/ppc/kernel/head_440.S
index a52bf16..d8cbb41 100644
--- a/arch/ppc/kernel/head_440.S
@@ -998,6 +1039,29 @@ index d90d323..513c65d 100644
EXPORT_SYMBOL(timer_interrupt_intercept);
EXPORT_SYMBOL(timer_interrupt);
EXPORT_SYMBOL(do_IRQ_intercept);
+diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
+index b78fee1..05b9286 100644
+--- a/arch/ppc/kernel/process.c
b/arch/ppc/kernel/process.c
+@@ -211,7 +211,7 @@ _switch_to(struct task_struct *prev, struct task_struct
*new,
+ struct task_struct **last)
+ {
+ struct thread_struct *new_thread, *old_thread;
+- unsigned long s;
++ unsigned long s, flags;
+
+ __save_flags(s);
+ __cli();
+@@ -276,7 +276,9 @@ _switch_to(struct task_struct *prev, struct task_struct
*new,
+ #endif
+ new_thread = &new->thread;
+ old_thread = ¤t->thread;
++ local_irq_save_hw_cond(flags);
+ *last = _switch(old_thread, new_thread);
++ local_irq_restore_hw_cond(flags);
+ __restore_flags(s);
+ }
+
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index aa4eaff..6f37807 100644
--- a/arch/ppc/kernel/traps.c
@@ -1140,20 +1204,6 @@ index 19fe78e..a3b36f8 100644
#if defined(CONFIG_XMON) || defined(CONFIG_KGDB)
if (debugger_fault_handler && regs->trap == 0x300) {
debugger_fault_handler(regs);
-diff --git a/arch/ppc/platforms/icecube.c b/arch/ppc/platforms/icecube.c
-index 40b6040..c35c2fa 100644
a/arch/ppc/platforms/icecube.c
-+++ b/arch/ppc/platforms/icecube.c
-@@ -46,6 +46,9 @@
- unsigned char __res[sizeof(bd_t)];
- #endif
-
-+void
-+mpc5xxx_progress(char *s, unsigned short hex);
-+
- extern int mpc5xxx_setkeycode(unsigned int scancode, unsigned int keycode);
- extern int mpc5xxx_getkeycode(unsigned int scancode);
- extern int mpc5xxx_translate(unsigned char scancode, unsigned char *keycode,
diff --git a/include/asm-ppc/hw_irq.h b/include/asm-ppc/hw_irq.h
index 8f0e170..ba649dc 100644
--- a/include/asm-ppc/hw_irq.h
@@ -1257,7 +1307,7 @@ index 8f0e170..ba649dc 100644
extern void do_lost_interrupts(unsigned long);
diff --git a/include/asm-ppc/ipipe.h b/include/asm-ppc/ipipe.h
new file mode 100644
-index 000..c4f52a0
+index 000..6e6fad1
--- /dev/null
+++ b/include/asm-ppc/ipipe.h
@@ -0,0 +1,183 @@
@@ -1301,10 +1351,10 @@ index
