* [PATCH] remove hardcoded offsets in arch/ppc/
@ 2004-06-04 10:42 Vincent Hanquez
0 siblings, 0 replies; only message in thread
From: Vincent Hanquez @ 2004-06-04 10:42 UTC (permalink / raw)
To: lkml; +Cc: Benjamin Herrenschmidt
Hi,
Here is the same cleanups as in i386 to remove hardcoded offsets of
thread_info in ppc/. it apply on top of 2.6.7-rc2.
Signed-off-by: Vincent Hanquez <tab@snarc.org>
diff -u -Naur linux-2.6.7-rc2.orig/arch/ppc/kernel/asm-offsets.c linux-2.6.7-rc2/arch/ppc/kernel/asm-offsets.c
--- linux-2.6.7-rc2.orig/arch/ppc/kernel/asm-offsets.c 2004-06-04 10:07:19.000000000 +0200
+++ linux-2.6.7-rc2/arch/ppc/kernel/asm-offsets.c 2004-06-04 11:57:16.000000000 +0200
@@ -123,6 +123,13 @@
DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
+ DEFINE(TI_task, offsetof(struct thread_info, task));
+ DEFINE(TI_exec_domain, offsetof(struct thread_info, exec_domain));
+ DEFINE(TI_flags, offsetof(struct thread_info, flags));
+ DEFINE(TI_local_flags, offsetof(struct thread_info, local_flags));
+ DEFINE(TI_cpu, offsetof(struct thread_info, cpu));
+ DEFINE(TI_preempt_count, offsetof(struct thread_info, preempt_count));
+
DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
return 0;
}
diff -u -Naur linux-2.6.7-rc2.orig/arch/ppc/kernel/entry.S linux-2.6.7-rc2/arch/ppc/kernel/entry.S
--- linux-2.6.7-rc2.orig/arch/ppc/kernel/entry.S 2004-06-04 10:40:58.000000000 +0200
+++ linux-2.6.7-rc2/arch/ppc/kernel/entry.S 2004-06-04 11:14:34.000000000 +0200
@@ -199,10 +199,10 @@
bl do_show_syscall
#endif /* SHOW_SYSCALLS */
rlwinm r10,r1,0,0,18 /* current_thread_info() */
- lwz r11,TI_LOCAL_FLAGS(r10)
+ lwz r11,TI_local_flags(r10)
rlwinm r11,r11,0,~_TIFL_FORCE_NOERROR
- stw r11,TI_LOCAL_FLAGS(r10)
- lwz r11,TI_FLAGS(r10)
+ stw r11,TI_local_flags(r10)
+ lwz r11,TI_flags(r10)
andi. r11,r11,_TIF_SYSCALL_TRACE
bne- syscall_dotrace
syscall_dotrace_cont:
@@ -225,7 +225,7 @@
cmpl 0,r3,r11
rlwinm r12,r1,0,0,18 /* current_thread_info() */
blt+ 30f
- lwz r11,TI_LOCAL_FLAGS(r12)
+ lwz r11,TI_local_flags(r12)
andi. r11,r11,_TIFL_FORCE_NOERROR
bne 30f
neg r3,r3
@@ -237,7 +237,7 @@
30: LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
SYNC
MTMSRD(r10)
- lwz r9,TI_FLAGS(r12)
+ lwz r9,TI_flags(r12)
andi. r0,r9,(_TIF_SYSCALL_TRACE|_TIF_SIGPENDING|_TIF_NEED_RESCHED)
bne- syscall_exit_work
syscall_exit_cont:
@@ -311,7 +311,7 @@
SYNC
MTMSRD(r10) /* disable interrupts again */
rlwinm r12,r1,0,0,18 /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
+ lwz r9,TI_flags(r12)
5:
andi. r0,r9,_TIF_NEED_RESCHED
bne 1f
@@ -558,7 +558,7 @@
sigreturn_exit:
subi r1,r3,STACK_FRAME_OVERHEAD
rlwinm r12,r1,0,0,18 /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
+ lwz r9,TI_flags(r12)
andi. r0,r9,_TIF_SYSCALL_TRACE
bnel- do_syscall_trace
/* fall through */
@@ -584,7 +584,7 @@
user_exc_return: /* r10 contains MSR_KERNEL here */
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,18
- lwz r9,TI_FLAGS(r9)
+ lwz r9,TI_flags(r9)
andi. r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED)
bne do_work
@@ -603,16 +603,16 @@
resume_kernel:
/* check current_thread_info->preempt_count */
rlwinm r9,r1,0,0,18
- lwz r0,TI_PREEMPT(r9)
+ lwz r0,TI_preempt_count(r9)
cmpwi 0,r0,0 /* if non-zero, just restore regs and return */
bne restore
- lwz r0,TI_FLAGS(r9)
+ lwz r0,TI_flags(r9)
andi. r0,r0,_TIF_NEED_RESCHED
beq+ restore
andi. r0,r3,MSR_EE /* interrupts off? */
beq restore /* don't schedule if so */
1: lis r0,PREEMPT_ACTIVE@h
- stw r0,TI_PREEMPT(r9)
+ stw r0,TI_preempt_count(r9)
ori r10,r10,MSR_EE
SYNC
MTMSRD(r10) /* hard-enable interrupts */
@@ -622,8 +622,8 @@
MTMSRD(r10) /* disable interrupts */
rlwinm r9,r1,0,0,18
li r0,0
- stw r0,TI_PREEMPT(r9)
- lwz r3,TI_FLAGS(r9)
+ stw r0,TI_preempt_count(r9)
+ lwz r3,TI_flags(r9)
andi. r0,r3,_TIF_NEED_RESCHED
bne- 1b
#else
@@ -901,7 +901,7 @@
SYNC
MTMSRD(r10) /* disable interrupts */
rlwinm r9,r1,0,0,18
- lwz r9,TI_FLAGS(r9)
+ lwz r9,TI_flags(r9)
andi. r0,r9,_TIF_NEED_RESCHED
bne- do_resched
andi. r0,r9,_TIF_SIGPENDING
diff -u -Naur linux-2.6.7-rc2.orig/arch/ppc/kernel/head.S linux-2.6.7-rc2/arch/ppc/kernel/head.S
--- linux-2.6.7-rc2.orig/arch/ppc/kernel/head.S 2004-06-04 10:40:58.000000000 +0200
+++ linux-2.6.7-rc2/arch/ppc/kernel/head.S 2004-06-04 11:56:00.000000000 +0200
@@ -1240,7 +1240,7 @@
tophys(r1,r1)
lwz r1,secondary_ti@l(r1)
tophys(r2,r1)
- lwz r2,TI_TASK(r2)
+ lwz r2,TI_task(r2)
/* stack */
addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
diff -u -Naur linux-2.6.7-rc2.orig/arch/ppc/kernel/idle_6xx.S linux-2.6.7-rc2/arch/ppc/kernel/idle_6xx.S
--- linux-2.6.7-rc2.orig/arch/ppc/kernel/idle_6xx.S 2004-06-04 10:07:19.000000000 +0200
+++ linux-2.6.7-rc2/arch/ppc/kernel/idle_6xx.S 2004-06-04 11:54:59.000000000 +0200
@@ -94,7 +94,7 @@
/* Check current_thread_info()->flags */
rlwinm r4,r1,0,0,18
- lwz r4,TI_FLAGS(r4)
+ lwz r4,TI_flags(r4)
andi. r0,r4,_TIF_NEED_RESCHED
beq 1f
mtmsr r7 /* out of line this ? */
@@ -191,7 +191,7 @@
rlwinm r9,r1,0,0,18
tophys(r9,r9)
- lwz r11,TI_CPU(r9)
+ lwz r11,TI_cpu(r9)
slwi r11,r11,2
/* Todo make sure all these are in the same page
* and load r22 (@ha part + CPU offset) only once
diff -u -Naur linux-2.6.7-rc2.orig/arch/ppc/kernel/idle_power4.S linux-2.6.7-rc2/arch/ppc/kernel/idle_power4.S
--- linux-2.6.7-rc2.orig/arch/ppc/kernel/idle_power4.S 2004-06-04 10:07:19.000000000 +0200
+++ linux-2.6.7-rc2/arch/ppc/kernel/idle_power4.S 2004-06-04 11:54:42.000000000 +0200
@@ -66,7 +66,7 @@
/* Check current_thread_info()->flags */
rlwinm r4,r1,0,0,18
- lwz r4,TI_FLAGS(r4)
+ lwz r4,TI_flags(r4)
andi. r0,r4,_TIF_NEED_RESCHED
beq 1f
mtmsr r7 /* out of line this ? */
diff -u -Naur linux-2.6.7-rc2.orig/arch/ppc/kernel/misc.S linux-2.6.7-rc2/arch/ppc/kernel/misc.S
--- linux-2.6.7-rc2.orig/arch/ppc/kernel/misc.S 2004-06-04 10:40:58.000000000 +0200
+++ linux-2.6.7-rc2/arch/ppc/kernel/misc.S 2004-06-04 11:55:42.000000000 +0200
@@ -233,7 +233,7 @@
/* Store new HID1 image */
rlwinm r6,r1,0,0,18
- lwz r6,TI_CPU(r6)
+ lwz r6,TI_cpu(r6)
slwi r6,r6,2
addis r6,r6,nap_save_hid1@ha
stw r4,nap_save_hid1@l(r6)
@@ -422,7 +422,7 @@
#else /* !(CONFIG_40x || CONFIG_44x) */
#if defined(CONFIG_SMP)
rlwinm r8,r1,0,0,18
- lwz r8,TI_CPU(r8)
+ lwz r8,TI_cpu(r8)
oris r8,r8,10
mfmsr r10
SYNC
@@ -490,7 +490,7 @@
#else /* !(CONFIG_40x || CONFIG_44x) */
#if defined(CONFIG_SMP)
rlwinm r8,r1,0,0,18
- lwz r8,TI_CPU(r8)
+ lwz r8,TI_cpu(r8)
oris r8,r8,11
mfmsr r10
SYNC
diff -u -Naur linux-2.6.7-rc2.orig/include/asm-ppc/thread_info.h linux-2.6.7-rc2/include/asm-ppc/thread_info.h
--- linux-2.6.7-rc2.orig/include/asm-ppc/thread_info.h 2004-06-04 10:07:48.000000000 +0200
+++ linux-2.6.7-rc2/include/asm-ppc/thread_info.h 2004-06-04 11:12:21.000000000 +0200
@@ -65,16 +65,6 @@
*/
#define THREAD_SIZE 8192 /* 2 pages */
-/*
- * Offsets in thread_info structure, used in assembly code
- */
-#define TI_TASK 0
-#define TI_EXECDOMAIN 4
-#define TI_FLAGS 8
-#define TI_LOCAL_FLAGS 12
-#define TI_CPU 16
-#define TI_PREEMPT 20
-
#define PREEMPT_ACTIVE 0x4000000
/*
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