Merge nommu tree

[powerpc.git] / arch / arm / kernel / entry-header.S

diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 9d4d286..f1c2fd5 100644 (file)
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -1,24 +1,11 @@
-#include <linux/config.h> /* for CONFIG_ARCH_xxxx */
+#include <linux/config.h>
+#include <linux/init.h>
 #include <linux/linkage.h>
 
 #include <asm/assembler.h>
-#include <asm/constants.h>
+#include <asm/asm-offsets.h>
 #include <asm/errno.h>
-#include <asm/hardware.h>
-#include <asm/arch/irqs.h>
-#include <asm/arch/entry-macro.S>
-
-#ifndef MODE_SVC
-#define MODE_SVC 0x13
-#endif
-
-       .macro  zero_fp
-#ifdef CONFIG_FRAME_POINTER
-       mov     fp, #0
-#endif
-       .endm
-
-       .text
+#include <asm/thread_info.h>
 
 @ Bad Abort numbers
 @ -----------------
@@ -29,18 +16,10 @@
 #define BAD_IRQ                3
 #define BAD_UNDEFINSTR 4
 
-#define PT_TRACESYS    0x00000002
-
-@ OS version number used in SWIs
-@  RISC OS is 0
-@  RISC iX is 8
-@
-#define OS_NUMBER      9
-#define ARMSWI_OFFSET  0x000f0000
-
 @
 @ Most of the stack format comes from struct pt_regs, but with
 @ the addition of 8 bytes for storing syscall args 5 and 6.
+@ This _must_ remain a multiple of 8 for EABI.
 @
 #define S_OFF          8
 
@@ -52,73 +31,10 @@
 #error "Please fix"
 #endif
 
-#if __LINUX_ARM_ARCH__ >= 6
-       .macro  disable_irq
-       cpsid   i
-       .endm
-
-       .macro  enable_irq
-       cpsie   i
-       .endm
-#else
-       .macro  disable_irq
-       msr     cpsr_c, #PSR_I_BIT | SVC_MODE
-       .endm
-
-       .macro  enable_irq
-       msr     cpsr_c, #SVC_MODE
-       .endm
+       .macro  zero_fp
+#ifdef CONFIG_FRAME_POINTER
+       mov     fp, #0
 #endif
-
-       .macro  save_user_regs
-       sub     sp, sp, #S_FRAME_SIZE
-       stmia   sp, {r0 - r12}                  @ Calling r0 - r12
-       add     r8, sp, #S_PC
-       stmdb   r8, {sp, lr}^                   @ Calling sp, lr
-       mrs     r8, spsr                        @ called from non-FIQ mode, so ok.
-       str     lr, [sp, #S_PC]                 @ Save calling PC
-       str     r8, [sp, #S_PSR]                @ Save CPSR
-       str     r0, [sp, #S_OLD_R0]             @ Save OLD_R0
-       .endm
-
-       .macro  restore_user_regs
-       ldr     r1, [sp, #S_PSR]                @ Get calling cpsr
-       disable_irq ip                          @ disable IRQs
-       ldr     lr, [sp, #S_PC]!                @ Get PC
-       msr     spsr_cxsf, r1                   @ save in spsr_svc
-       ldmdb   sp, {r0 - lr}^                  @ Get calling r0 - lr
-       mov     r0, r0
-       add     sp, sp, #S_FRAME_SIZE - S_PC
-       movs    pc, lr                          @ return & move spsr_svc into cpsr
-       .endm
-
-/*
- * Must be called with IRQs already disabled.
- */
-       .macro  fast_restore_user_regs
-       ldr     r1, [sp, #S_OFF + S_PSR]        @ get calling cpsr
-       ldr     lr, [sp, #S_OFF + S_PC]!        @ get pc
-       msr     spsr_cxsf, r1                   @ save in spsr_svc
-       ldmdb   sp, {r1 - lr}^                  @ get calling r1 - lr
-       mov     r0, r0
-       add     sp, sp, #S_FRAME_SIZE - S_PC
-       movs    pc, lr                          @ return & move spsr_svc into cpsr
-       .endm
-
-/*
- * Must be called with IRQs already disabled.
- */
-       .macro  slow_restore_user_regs
-       ldr     r1, [sp, #S_PSR]                @ get calling cpsr
-       ldr     lr, [sp, #S_PC]!                @ get pc
-       msr     spsr_cxsf, r1                   @ save in spsr_svc
-       ldmdb   sp, {r0 - lr}^                  @ get calling r1 - lr
-       mov     r0, r0
-       add     sp, sp, #S_FRAME_SIZE - S_PC
-       movs    pc, lr                          @ return & move spsr_svc into cpsr
-       .endm
-
-       .macro  mask_pc, rd, rm
        .endm
 
        .macro  get_thread_info, rd
@@ -126,11 +42,10 @@
        mov     \rd, \rd, lsl #13
        .endm
 
-       .macro  alignment_trap, rbase, rtemp, sym
+       .macro  alignment_trap, rtemp
 #ifdef CONFIG_ALIGNMENT_TRAP
-#define OFF_CR_ALIGNMENT(x)    cr_alignment - x
-
-       ldr     \rtemp, [\rbase, #OFF_CR_ALIGNMENT(\sym)]
+       ldr     \rtemp, .LCcralign
+       ldr     \rtemp, [\rtemp]
        mcr     p15, 0, \rtemp, c1, c0
 #endif
        .endm
@@ -150,18 +65,3 @@ scno        .req    r7              @ syscall number
 tbl    .req    r8              @ syscall table pointer
 why    .req    r8              @ Linux syscall (!= 0)
 tsk    .req    r9              @ current thread_info
-
-/*
- * Get the system call number.
- */
-       .macro  get_scno
-#ifdef CONFIG_ARM_THUMB
-       tst     r8, #PSR_T_BIT          @ this is SPSR from save_user_regs
-       addne   scno, r7, #OS_NUMBER << 20 @ put OS number in
-       ldreq   scno, [lr, #-4]
-
-#else
-       mask_pc lr, lr
-       ldr     scno, [lr, #-4]         @ get SWI instruction
-#endif
-       .endm