obj-y := semaphore.o cputable.o ptrace.o syscalls.o \
signal_32.o pmc.o
obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
- ptrace32.o
+ ptrace32.o systbl.o
obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
obj-$(CONFIG_POWER4) += idle_power4.o
obj-$(CONFIG_PPC_OF) += of_device.o
extra-$(CONFIG_44x) := head_44x.o
extra-$(CONFIG_FSL_BOOKE) := head_fsl_booke.o
extra-$(CONFIG_8xx) := head_8xx.o
-extra-$(CONFIG_PPC64) += entry_64.o
extra-y += vmlinux.lds
obj-y += process.o init_task.o time.o \
- prom.o systbl.o traps.o setup-common.o
-obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o
+ prom.o traps.o setup-common.o
+obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o systbl.o
obj-$(CONFIG_PPC64) += misc_64.o
obj-$(CONFIG_PPC_OF) += prom_init.o
obj-$(CONFIG_MODULES) += ppc_ksyms.o
endif
extra-$(CONFIG_PPC_FPU) += fpu.o
+extra-$(CONFIG_PPC64) += entry_64.o
limit)) + PAGE_SIZE;
}
-extern unsigned long *sys_call_table;
-extern unsigned long sys_ni_syscall;
-#ifdef CONFIG_PPC_MERGE
-#define SYS_CALL_ENTRY64(i) sys_call_table[(i) * 2]
-#define SYS_CALL_ENTRY32(i) sys_call_table[(i) * 2 + 1]
-#else
-extern unsigned long *sys_call_table32;
-#define SYS_CALL_ENTRY64(i) sys_call_table[(i)]
-#define SYS_CALL_ENTRY32(i) sys_call_table32[(i)]
-#endif
-
/*
* Called from setup_arch to initialize the bitmap of available
* syscalls in the systemcfg page
void __init setup_syscall_map(void)
{
unsigned int i, count64 = 0, count32 = 0;
+ extern unsigned long *sys_call_table;
+ extern unsigned long sys_ni_syscall;
+
for (i = 0; i < __NR_syscalls; i++) {
- if (SYS_CALL_ENTRY64(i) != sys_ni_syscall) {
+ if (sys_call_table[i*2] != sys_ni_syscall) {
count64++;
systemcfg->syscall_map_64[i >> 5] |=
0x80000000UL >> (i & 0x1f);
}
- if (SYS_CALL_ENTRY32(i) != sys_ni_syscall) {
+ if (sys_call_table[i*2+1] != sys_ni_syscall) {
count32++;
systemcfg->syscall_map_32[i >> 5] |=
0x80000000UL >> (i & 0x1f);
# Makefile for ppc-specific library files..
#
-obj-y := strcase.o string.o
+ifeq ($(CONFIG_PPC_MERGE),y)
+obj-y := string.o
+endif
+
+obj-y += strcase.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o
-obj-$(CONFIG_PPC64) += copypage_64.o copyuser_64.o memcpy_64.o \
- usercopy_64.o sstep.o checksum_64.o mem_64.o
+obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \
+ memcpy_64.o usercopy_64.o mem_64.o
obj-$(CONFIG_PPC_ISERIES) += e2a.o
ifeq ($(CONFIG_PPC64),y)
obj-$(CONFIG_SMP) += locks.o
+obj-$(CONFIG_DEBUG_KERNEL) += sstep.o
endif
-
head-y := arch/ppc64/kernel/head.o
head-y += arch/powerpc/kernel/fpu.o
+head-y += arch/powerpc/kernel/entry_64.o
libs-y += arch/ppc64/lib/
core-y += arch/ppc64/kernel/ arch/powerpc/kernel/
core-y += arch/powerpc/mm/
core-y += arch/powerpc/sysdev/
core-y += arch/powerpc/platforms/
+core-y += arch/powerpc/lib/
core-$(CONFIG_XMON) += arch/ppc64/xmon/
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
EXTRA_CFLAGS += -mno-minimal-toc
extra-y := head.o vmlinux.lds
-obj-y := entry.o misc.o prom.o
+obj-y := misc.o prom.o
endif
+++ /dev/null
-/*
- * arch/ppc64/kernel/entry.S
- *
- * PowerPC version
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- * Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
- * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
- * Adapted for Power Macintosh by Paul Mackerras.
- * Low-level exception handlers and MMU support
- * rewritten by Paul Mackerras.
- * Copyright (C) 1996 Paul Mackerras.
- * MPC8xx modifications Copyright (C) 1997 Dan Malek (dmalek@jlc.net).
- *
- * This file contains the system call entry code, context switch
- * code, and exception/interrupt return code for PowerPC.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <asm/unistd.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/thread_info.h>
-#include <asm/ppc_asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/cputable.h>
-
-#ifdef CONFIG_PPC_ISERIES
-#define DO_SOFT_DISABLE
-#endif
-
-/*
- * System calls.
- */
- .section ".toc","aw"
-.SYS_CALL_TABLE:
- .tc .sys_call_table[TC],.sys_call_table
-
-.SYS_CALL_TABLE32:
- .tc .sys_call_table32[TC],.sys_call_table32
-
-/* This value is used to mark exception frames on the stack. */
-exception_marker:
- .tc ID_72656773_68657265[TC],0x7265677368657265
-
- .section ".text"
- .align 7
-
-#undef SHOW_SYSCALLS
-
- .globl system_call_common
-system_call_common:
- andi. r10,r12,MSR_PR
- mr r10,r1
- addi r1,r1,-INT_FRAME_SIZE
- beq- 1f
- ld r1,PACAKSAVE(r13)
-1: std r10,0(r1)
- std r11,_NIP(r1)
- std r12,_MSR(r1)
- std r0,GPR0(r1)
- std r10,GPR1(r1)
- std r2,GPR2(r1)
- std r3,GPR3(r1)
- std r4,GPR4(r1)
- std r5,GPR5(r1)
- std r6,GPR6(r1)
- std r7,GPR7(r1)
- std r8,GPR8(r1)
- li r11,0
- std r11,GPR9(r1)
- std r11,GPR10(r1)
- std r11,GPR11(r1)
- std r11,GPR12(r1)
- std r9,GPR13(r1)
- crclr so
- mfcr r9
- mflr r10
- li r11,0xc01
- std r9,_CCR(r1)
- std r10,_LINK(r1)
- std r11,_TRAP(r1)
- mfxer r9
- mfctr r10
- std r9,_XER(r1)
- std r10,_CTR(r1)
- std r3,ORIG_GPR3(r1)
- ld r2,PACATOC(r13)
- addi r9,r1,STACK_FRAME_OVERHEAD
- ld r11,exception_marker@toc(r2)
- std r11,-16(r9) /* "regshere" marker */
-#ifdef CONFIG_PPC_ISERIES
- /* Hack for handling interrupts when soft-enabling on iSeries */
- cmpdi cr1,r0,0x5555 /* syscall 0x5555 */
- andi. r10,r12,MSR_PR /* from kernel */
- crand 4*cr0+eq,4*cr1+eq,4*cr0+eq
- beq hardware_interrupt_entry
- lbz r10,PACAPROCENABLED(r13)
- std r10,SOFTE(r1)
-#endif
- mfmsr r11
- ori r11,r11,MSR_EE
- mtmsrd r11,1
-
-#ifdef SHOW_SYSCALLS
- bl .do_show_syscall
- REST_GPR(0,r1)
- REST_4GPRS(3,r1)
- REST_2GPRS(7,r1)
- addi r9,r1,STACK_FRAME_OVERHEAD
-#endif
- clrrdi r11,r1,THREAD_SHIFT
- li r12,0
- ld r10,TI_FLAGS(r11)
- stb r12,TI_SC_NOERR(r11)
- andi. r11,r10,_TIF_SYSCALL_T_OR_A
- bne- syscall_dotrace
-syscall_dotrace_cont:
- cmpldi 0,r0,NR_syscalls
- bge- syscall_enosys
-
-system_call: /* label this so stack traces look sane */
-/*
- * Need to vector to 32 Bit or default sys_call_table here,
- * based on caller's run-mode / personality.
- */
- ld r11,.SYS_CALL_TABLE@toc(2)
- andi. r10,r10,_TIF_32BIT
- beq 15f
- ld r11,.SYS_CALL_TABLE32@toc(2)
- clrldi r3,r3,32
- clrldi r4,r4,32
- clrldi r5,r5,32
- clrldi r6,r6,32
- clrldi r7,r7,32
- clrldi r8,r8,32
-15:
- slwi r0,r0,3
- ldx r10,r11,r0 /* Fetch system call handler [ptr] */
- mtctr r10
- bctrl /* Call handler */
-
-syscall_exit:
-#ifdef SHOW_SYSCALLS
- std r3,GPR3(r1)
- bl .do_show_syscall_exit
- ld r3,GPR3(r1)
-#endif
- std r3,RESULT(r1)
- ld r5,_CCR(r1)
- li r10,-_LAST_ERRNO
- cmpld r3,r10
- clrrdi r12,r1,THREAD_SHIFT
- bge- syscall_error
-syscall_error_cont:
-
- /* check for syscall tracing or audit */
- ld r9,TI_FLAGS(r12)
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
- bne- syscall_exit_trace
-syscall_exit_trace_cont:
-
- /* disable interrupts so current_thread_info()->flags can't change,
- and so that we don't get interrupted after loading SRR0/1. */
- ld r8,_MSR(r1)
- andi. r10,r8,MSR_RI
- beq- unrecov_restore
- mfmsr r10
- rldicl r10,r10,48,1
- rotldi r10,r10,16
- mtmsrd r10,1
- ld r9,TI_FLAGS(r12)
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED)
- bne- syscall_exit_work
- ld r7,_NIP(r1)
- stdcx. r0,0,r1 /* to clear the reservation */
- andi. r6,r8,MSR_PR
- ld r4,_LINK(r1)
- beq- 1f /* only restore r13 if */
- ld r13,GPR13(r1) /* returning to usermode */
-1: ld r2,GPR2(r1)
- li r12,MSR_RI
- andc r10,r10,r12
- mtmsrd r10,1 /* clear MSR.RI */
- ld r1,GPR1(r1)
- mtlr r4
- mtcr r5
- mtspr SPRN_SRR0,r7
- mtspr SPRN_SRR1,r8
- rfid
- b . /* prevent speculative execution */
-
-syscall_enosys:
- li r3,-ENOSYS
- std r3,RESULT(r1)
- clrrdi r12,r1,THREAD_SHIFT
- ld r5,_CCR(r1)
-
-syscall_error:
- lbz r11,TI_SC_NOERR(r12)
- cmpwi 0,r11,0
- bne- syscall_error_cont
- neg r3,r3
- oris r5,r5,0x1000 /* Set SO bit in CR */
- std r5,_CCR(r1)
- b syscall_error_cont
-
-/* Traced system call support */
-syscall_dotrace:
- bl .save_nvgprs
- addi r3,r1,STACK_FRAME_OVERHEAD
- bl .do_syscall_trace_enter
- ld r0,GPR0(r1) /* Restore original registers */
- ld r3,GPR3(r1)
- ld r4,GPR4(r1)
- ld r5,GPR5(r1)
- ld r6,GPR6(r1)
- ld r7,GPR7(r1)
- ld r8,GPR8(r1)
- addi r9,r1,STACK_FRAME_OVERHEAD
- clrrdi r10,r1,THREAD_SHIFT
- ld r10,TI_FLAGS(r10)
- b syscall_dotrace_cont
-
-syscall_exit_trace:
- std r3,GPR3(r1)
- bl .save_nvgprs
- addi r3,r1,STACK_FRAME_OVERHEAD
- bl .do_syscall_trace_leave
- REST_NVGPRS(r1)
- ld r3,GPR3(r1)
- ld r5,_CCR(r1)
- clrrdi r12,r1,THREAD_SHIFT
- b syscall_exit_trace_cont
-
-/* Stuff to do on exit from a system call. */
-syscall_exit_work:
- std r3,GPR3(r1)
- std r5,_CCR(r1)
- b .ret_from_except_lite
-
-/* Save non-volatile GPRs, if not already saved. */
-_GLOBAL(save_nvgprs)
- ld r11,_TRAP(r1)
- andi. r0,r11,1
- beqlr-
- SAVE_NVGPRS(r1)
- clrrdi r0,r11,1
- std r0,_TRAP(r1)
- blr
-
-/*
- * The sigsuspend and rt_sigsuspend system calls can call do_signal
- * and thus put the process into the stopped state where we might
- * want to examine its user state with ptrace. Therefore we need
- * to save all the nonvolatile registers (r14 - r31) before calling
- * the C code. Similarly, fork, vfork and clone need the full
- * register state on the stack so that it can be copied to the child.
- */
-_GLOBAL(ppc32_sigsuspend)
- bl .save_nvgprs
- bl .compat_sys_sigsuspend
- b 70f
-
-_GLOBAL(ppc64_rt_sigsuspend)
- bl .save_nvgprs
- bl .sys_rt_sigsuspend
- b 70f
-
-_GLOBAL(ppc32_rt_sigsuspend)
- bl .save_nvgprs
- bl .compat_sys_rt_sigsuspend
-70: cmpdi 0,r3,0
- /* If it returned an error, we need to return via syscall_exit to set
- the SO bit in cr0 and potentially stop for ptrace. */
- bne syscall_exit
- /* If sigsuspend() returns zero, we are going into a signal handler. We
- may need to call audit_syscall_exit() to mark the exit from sigsuspend() */
-#ifdef CONFIG_AUDIT
- ld r3,PACACURRENT(r13)
- ld r4,AUDITCONTEXT(r3)
- cmpdi 0,r4,0
- beq .ret_from_except /* No audit_context: Leave immediately. */
- li r4, 2 /* AUDITSC_FAILURE */
- li r5,-4 /* It's always -EINTR */
- bl .audit_syscall_exit
-#endif
- b .ret_from_except
-
-_GLOBAL(ppc_fork)
- bl .save_nvgprs
- bl .sys_fork
- b syscall_exit
-
-_GLOBAL(ppc_vfork)
- bl .save_nvgprs
- bl .sys_vfork
- b syscall_exit
-
-_GLOBAL(ppc_clone)
- bl .save_nvgprs
- bl .sys_clone
- b syscall_exit
-
-_GLOBAL(ppc32_swapcontext)
- bl .save_nvgprs
- bl .compat_sys_swapcontext
- b 80f
-
-_GLOBAL(ppc64_swapcontext)
- bl .save_nvgprs
- bl .sys_swapcontext
- b 80f
-
-_GLOBAL(ppc32_sigreturn)
- bl .compat_sys_sigreturn
- b 80f
-
-_GLOBAL(ppc32_rt_sigreturn)
- bl .compat_sys_rt_sigreturn
- b 80f
-
-_GLOBAL(ppc64_rt_sigreturn)
- bl .sys_rt_sigreturn
-
-80: cmpdi 0,r3,0
- blt syscall_exit
- clrrdi r4,r1,THREAD_SHIFT
- ld r4,TI_FLAGS(r4)
- andi. r4,r4,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
- beq+ 81f
- addi r3,r1,STACK_FRAME_OVERHEAD
- bl .do_syscall_trace_leave
-81: b .ret_from_except
-
-_GLOBAL(ret_from_fork)
- bl .schedule_tail
- REST_NVGPRS(r1)
- li r3,0
- b syscall_exit
-
-/*
- * This routine switches between two different tasks. The process
- * state of one is saved on its kernel stack. Then the state
- * of the other is restored from its kernel stack. The memory
- * management hardware is updated to the second process's state.
- * Finally, we can return to the second process, via ret_from_except.
- * On entry, r3 points to the THREAD for the current task, r4
- * points to the THREAD for the new task.
- *
- * Note: there are two ways to get to the "going out" portion
- * of this code; either by coming in via the entry (_switch)
- * or via "fork" which must set up an environment equivalent
- * to the "_switch" path. If you change this you'll have to change
- * the fork code also.
- *
- * The code which creates the new task context is in 'copy_thread'
- * in arch/ppc64/kernel/process.c
- */
- .align 7
-_GLOBAL(_switch)
- mflr r0
- std r0,16(r1)
- stdu r1,-SWITCH_FRAME_SIZE(r1)
- /* r3-r13 are caller saved -- Cort */
- SAVE_8GPRS(14, r1)
- SAVE_10GPRS(22, r1)
- mflr r20 /* Return to switch caller */
- mfmsr r22
- li r0, MSR_FP
-#ifdef CONFIG_ALTIVEC
-BEGIN_FTR_SECTION
- oris r0,r0,MSR_VEC@h /* Disable altivec */
- mfspr r24,SPRN_VRSAVE /* save vrsave register value */
- std r24,THREAD_VRSAVE(r3)
-END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
-#endif /* CONFIG_ALTIVEC */
- and. r0,r0,r22
- beq+ 1f
- andc r22,r22,r0
- mtmsrd r22
- isync
-1: std r20,_NIP(r1)
- mfcr r23
- std r23,_CCR(r1)
- std r1,KSP(r3) /* Set old stack pointer */
-
-#ifdef CONFIG_SMP
- /* We need a sync somewhere here to make sure that if the
- * previous task gets rescheduled on another CPU, it sees all
- * stores it has performed on this one.
- */
- sync
-#endif /* CONFIG_SMP */
-
- addi r6,r4,-THREAD /* Convert THREAD to 'current' */
- std r6,PACACURRENT(r13) /* Set new 'current' */
-
- ld r8,KSP(r4) /* new stack pointer */
-BEGIN_FTR_SECTION
- clrrdi r6,r8,28 /* get its ESID */
- clrrdi r9,r1,28 /* get current sp ESID */
- clrldi. r0,r6,2 /* is new ESID c00000000? */
- cmpd cr1,r6,r9 /* or is new ESID the same as current ESID? */
- cror eq,4*cr1+eq,eq
- beq 2f /* if yes, don't slbie it */
-
- /* Bolt in the new stack SLB entry */
- ld r7,KSP_VSID(r4) /* Get new stack's VSID */
- oris r0,r6,(SLB_ESID_V)@h
- ori r0,r0,(SLB_NUM_BOLTED-1)@l
- slbie r6
- slbie r6 /* Workaround POWER5 < DD2.1 issue */
- slbmte r7,r0
- isync
-
-2:
-END_FTR_SECTION_IFSET(CPU_FTR_SLB)
- clrrdi r7,r8,THREAD_SHIFT /* base of new stack */
- /* Note: this uses SWITCH_FRAME_SIZE rather than INT_FRAME_SIZE
- because we don't need to leave the 288-byte ABI gap at the
- top of the kernel stack. */
- addi r7,r7,THREAD_SIZE-SWITCH_FRAME_SIZE
-
- mr r1,r8 /* start using new stack pointer */
- std r7,PACAKSAVE(r13)
-
- ld r6,_CCR(r1)
- mtcrf 0xFF,r6
-
-#ifdef CONFIG_ALTIVEC
-BEGIN_FTR_SECTION
- ld r0,THREAD_VRSAVE(r4)
- mtspr SPRN_VRSAVE,r0 /* if G4, restore VRSAVE reg */
-END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
-#endif /* CONFIG_ALTIVEC */
-
- /* r3-r13 are destroyed -- Cort */
- REST_8GPRS(14, r1)
- REST_10GPRS(22, r1)
-
- /* convert old thread to its task_struct for return value */
- addi r3,r3,-THREAD
- ld r7,_NIP(r1) /* Return to _switch caller in new task */
- mtlr r7
- addi r1,r1,SWITCH_FRAME_SIZE
- blr
-
- .align 7
-_GLOBAL(ret_from_except)
- ld r11,_TRAP(r1)
- andi. r0,r11,1
- bne .ret_from_except_lite
- REST_NVGPRS(r1)
-
-_GLOBAL(ret_from_except_lite)
- /*
- * Disable interrupts so that current_thread_info()->flags
- * can't change between when we test it and when we return
- * from the interrupt.
- */
- mfmsr r10 /* Get current interrupt state */
- rldicl r9,r10,48,1 /* clear MSR_EE */
- rotldi r9,r9,16
- mtmsrd r9,1 /* Update machine state */
-
-#ifdef CONFIG_PREEMPT
- clrrdi r9,r1,THREAD_SHIFT /* current_thread_info() */
- li r0,_TIF_NEED_RESCHED /* bits to check */
- ld r3,_MSR(r1)
- ld r4,TI_FLAGS(r9)
- /* Move MSR_PR bit in r3 to _TIF_SIGPENDING position in r0 */
- rlwimi r0,r3,32+TIF_SIGPENDING-MSR_PR_LG,_TIF_SIGPENDING
- and. r0,r4,r0 /* check NEED_RESCHED and maybe SIGPENDING */
- bne do_work
-
-#else /* !CONFIG_PREEMPT */
- ld r3,_MSR(r1) /* Returning to user mode? */
- andi. r3,r3,MSR_PR
- beq restore /* if not, just restore regs and return */
-
- /* Check current_thread_info()->flags */
- clrrdi r9,r1,THREAD_SHIFT
- ld r4,TI_FLAGS(r9)
- andi. r0,r4,_TIF_USER_WORK_MASK
- bne do_work
-#endif
-
-restore:
-#ifdef CONFIG_PPC_ISERIES
- ld r5,SOFTE(r1)
- cmpdi 0,r5,0
- beq 4f
- /* Check for pending interrupts (iSeries) */
- ld r3,PACALPPACA+LPPACAANYINT(r13)
- cmpdi r3,0
- beq+ 4f /* skip do_IRQ if no interrupts */
-
- li r3,0
- stb r3,PACAPROCENABLED(r13) /* ensure we are soft-disabled */
- ori r10,r10,MSR_EE
- mtmsrd r10 /* hard-enable again */
- addi r3,r1,STACK_FRAME_OVERHEAD
- bl .do_IRQ
- b .ret_from_except_lite /* loop back and handle more */
-
-4: stb r5,PACAPROCENABLED(r13)
-#endif
-
- ld r3,_MSR(r1)
- andi. r0,r3,MSR_RI
- beq- unrecov_restore
-
- andi. r0,r3,MSR_PR
-
- /*
- * r13 is our per cpu area, only restore it if we are returning to
- * userspace
- */
- beq 1f
- REST_GPR(13, r1)
-1:
- ld r3,_CTR(r1)
- ld r0,_LINK(r1)
- mtctr r3
- mtlr r0
- ld r3,_XER(r1)
- mtspr SPRN_XER,r3
-
- REST_8GPRS(5, r1)
-
- stdcx. r0,0,r1 /* to clear the reservation */
-
- mfmsr r0
- li r2, MSR_RI
- andc r0,r0,r2
- mtmsrd r0,1
-
- ld r0,_MSR(r1)
- mtspr SPRN_SRR1,r0
-
- ld r2,_CCR(r1)
- mtcrf 0xFF,r2
- ld r2,_NIP(r1)
- mtspr SPRN_SRR0,r2
-
- ld r0,GPR0(r1)
- ld r2,GPR2(r1)
- ld r3,GPR3(r1)
- ld r4,GPR4(r1)
- ld r1,GPR1(r1)
-
- rfid
- b . /* prevent speculative execution */
-
-/* Note: this must change if we start using the TIF_NOTIFY_RESUME bit */
-do_work:
-#ifdef CONFIG_PREEMPT
- andi. r0,r3,MSR_PR /* Returning to user mode? */
- bne user_work
- /* Check that preempt_count() == 0 and interrupts are enabled */
- lwz r8,TI_PREEMPT(r9)
- cmpwi cr1,r8,0
-#ifdef CONFIG_PPC_ISERIES
- ld r0,SOFTE(r1)
- cmpdi r0,0
-#else
- andi. r0,r3,MSR_EE
-#endif
- crandc eq,cr1*4+eq,eq
- bne restore
- /* here we are preempting the current task */
-1:
-#ifdef CONFIG_PPC_ISERIES
- li r0,1
- stb r0,PACAPROCENABLED(r13)
-#endif
- ori r10,r10,MSR_EE
- mtmsrd r10,1 /* reenable interrupts */
- bl .preempt_schedule
- mfmsr r10
- clrrdi r9,r1,THREAD_SHIFT
- rldicl r10,r10,48,1 /* disable interrupts again */
- rotldi r10,r10,16
- mtmsrd r10,1
- ld r4,TI_FLAGS(r9)
- andi. r0,r4,_TIF_NEED_RESCHED
- bne 1b
- b restore
-
-user_work:
-#endif
- /* Enable interrupts */
- ori r10,r10,MSR_EE
- mtmsrd r10,1
-
- andi. r0,r4,_TIF_NEED_RESCHED
- beq 1f
- bl .schedule
- b .ret_from_except_lite
-
-1: bl .save_nvgprs
- li r3,0
- addi r4,r1,STACK_FRAME_OVERHEAD
- bl .do_signal
- b .ret_from_except
-
-unrecov_restore:
- addi r3,r1,STACK_FRAME_OVERHEAD
- bl .unrecoverable_exception
- b unrecov_restore
-
-#ifdef CONFIG_PPC_RTAS
-/*
- * On CHRP, the Run-Time Abstraction Services (RTAS) have to be
- * called with the MMU off.
- *
- * In addition, we need to be in 32b mode, at least for now.
- *
- * Note: r3 is an input parameter to rtas, so don't trash it...
- */
-_GLOBAL(enter_rtas)
- mflr r0
- std r0,16(r1)
- stdu r1,-RTAS_FRAME_SIZE(r1) /* Save SP and create stack space. */
-
- /* Because RTAS is running in 32b mode, it clobbers the high order half
- * of all registers that it saves. We therefore save those registers
- * RTAS might touch to the stack. (r0, r3-r13 are caller saved)
- */
- SAVE_GPR(2, r1) /* Save the TOC */
- SAVE_GPR(13, r1) /* Save paca */
- SAVE_8GPRS(14, r1) /* Save the non-volatiles */
- SAVE_10GPRS(22, r1) /* ditto */
-
- mfcr r4
- std r4,_CCR(r1)
- mfctr r5
- std r5,_CTR(r1)
- mfspr r6,SPRN_XER
- std r6,_XER(r1)
- mfdar r7
- std r7,_DAR(r1)
- mfdsisr r8
- std r8,_DSISR(r1)
- mfsrr0 r9
- std r9,_SRR0(r1)
- mfsrr1 r10
- std r10,_SRR1(r1)
-
- /* There is no way it is acceptable to get here with interrupts enabled,
- * check it with the asm equivalent of WARN_ON
- */
- mfmsr r6
- andi. r0,r6,MSR_EE
-1: tdnei r0,0
-.section __bug_table,"a"
- .llong 1b,__LINE__ + 0x1000000, 1f, 2f
-.previous
-.section .rodata,"a"
-1: .asciz __FILE__
-2: .asciz "enter_rtas"
-.previous
-
- /* Unfortunately, the stack pointer and the MSR are also clobbered,
- * so they are saved in the PACA which allows us to restore
- * our original state after RTAS returns.
- */
- std r1,PACAR1(r13)
- std r6,PACASAVEDMSR(r13)
-
- /* Setup our real return addr */
- SET_REG_TO_LABEL(r4,.rtas_return_loc)
- SET_REG_TO_CONST(r9,KERNELBASE)
- sub r4,r4,r9
- mtlr r4
-
- li r0,0
- ori r0,r0,MSR_EE|MSR_SE|MSR_BE|MSR_RI
- andc r0,r6,r0
-
- li r9,1
- rldicr r9,r9,MSR_SF_LG,(63-MSR_SF_LG)
- ori r9,r9,MSR_IR|MSR_DR|MSR_FE0|MSR_FE1|MSR_FP
- andc r6,r0,r9
- ori r6,r6,MSR_RI
- sync /* disable interrupts so SRR0/1 */
- mtmsrd r0 /* don't get trashed */
-
- SET_REG_TO_LABEL(r4,rtas)
- ld r5,RTASENTRY(r4) /* get the rtas->entry value */
- ld r4,RTASBASE(r4) /* get the rtas->base value */
-
- mtspr SPRN_SRR0,r5
- mtspr SPRN_SRR1,r6
- rfid
- b . /* prevent speculative execution */
-
-_STATIC(rtas_return_loc)
- /* relocation is off at this point */
- mfspr r4,SPRN_SPRG3 /* Get PACA */
- SET_REG_TO_CONST(r5, KERNELBASE)
- sub r4,r4,r5 /* RELOC the PACA base pointer */
-
- mfmsr r6
- li r0,MSR_RI
- andc r6,r6,r0
- sync
- mtmsrd r6
-
- ld r1,PACAR1(r4) /* Restore our SP */
- LOADADDR(r3,.rtas_restore_regs)
- ld r4,PACASAVEDMSR(r4) /* Restore our MSR */
-
- mtspr SPRN_SRR0,r3
- mtspr SPRN_SRR1,r4
- rfid
- b . /* prevent speculative execution */
-
-_STATIC(rtas_restore_regs)
- /* relocation is on at this point */
- REST_GPR(2, r1) /* Restore the TOC */
- REST_GPR(13, r1) /* Restore paca */
- REST_8GPRS(14, r1) /* Restore the non-volatiles */
- REST_10GPRS(22, r1) /* ditto */
-
- mfspr r13,SPRN_SPRG3
-
- ld r4,_CCR(r1)
- mtcr r4
- ld r5,_CTR(r1)
- mtctr r5
- ld r6,_XER(r1)
- mtspr SPRN_XER,r6
- ld r7,_DAR(r1)
- mtdar r7
- ld r8,_DSISR(r1)
- mtdsisr r8
- ld r9,_SRR0(r1)
- mtsrr0 r9
- ld r10,_SRR1(r1)
- mtsrr1 r10
-
- addi r1,r1,RTAS_FRAME_SIZE /* Unstack our frame */
- ld r0,16(r1) /* get return address */
-
- mtlr r0
- blr /* return to caller */
-
-#endif /* CONFIG_PPC_RTAS */
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
-
-_GLOBAL(enter_prom)
- mflr r0
- std r0,16(r1)
- stdu r1,-PROM_FRAME_SIZE(r1) /* Save SP and create stack space */
-
- /* Because PROM is running in 32b mode, it clobbers the high order half
- * of all registers that it saves. We therefore save those registers
- * PROM might touch to the stack. (r0, r3-r13 are caller saved)
- */
- SAVE_8GPRS(2, r1)
- SAVE_GPR(13, r1)
- SAVE_8GPRS(14, r1)
- SAVE_10GPRS(22, r1)
- mfcr r4
- std r4,_CCR(r1)
- mfctr r5
- std r5,_CTR(r1)
- mfspr r6,SPRN_XER
- std r6,_XER(r1)
- mfdar r7
- std r7,_DAR(r1)
- mfdsisr r8
- std r8,_DSISR(r1)
- mfsrr0 r9
- std r9,_SRR0(r1)
- mfsrr1 r10
- std r10,_SRR1(r1)
- mfmsr r11
- std r11,_MSR(r1)
-
- /* Get the PROM entrypoint */
- ld r0,GPR4(r1)
- mtlr r0
-
- /* Switch MSR to 32 bits mode
- */
- mfmsr r11
- li r12,1
- rldicr r12,r12,MSR_SF_LG,(63-MSR_SF_LG)
- andc r11,r11,r12
- li r12,1
- rldicr r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG)
- andc r11,r11,r12
- mtmsrd r11
- isync
-
- /* Restore arguments & enter PROM here... */
- ld r3,GPR3(r1)
- blrl
-
- /* Just make sure that r1 top 32 bits didn't get
- * corrupt by OF
- */
- rldicl r1,r1,0,32
-
- /* Restore the MSR (back to 64 bits) */
- ld r0,_MSR(r1)
- mtmsrd r0
- isync
-
- /* Restore other registers */
- REST_GPR(2, r1)
- REST_GPR(13, r1)
- REST_8GPRS(14, r1)
- REST_10GPRS(22, r1)
- ld r4,_CCR(r1)
- mtcr r4
- ld r5,_CTR(r1)
- mtctr r5
- ld r6,_XER(r1)
- mtspr SPRN_XER,r6
- ld r7,_DAR(r1)
- mtdar r7
- ld r8,_DSISR(r1)
- mtdsisr r8
- ld r9,_SRR0(r1)
- mtsrr0 r9
- ld r10,_SRR1(r1)
- mtsrr1 r10
-
- addi r1,r1,PROM_FRAME_SIZE
- ld r0,16(r1)
- mtlr r0
- blr
-
-#endif /* CONFIG_PPC_MULTIPLATFORM */
li r5,0
blr /* image->start(physid, image->start, 0); */
#endif /* CONFIG_KEXEC */
-
-/* Why isn't this a) automatic, b) written in 'C'? */
- .balign 8
-_GLOBAL(sys_call_table32)
- .llong .sys_restart_syscall /* 0 */
- .llong .sys_exit
- .llong .ppc_fork
- .llong .sys_read
- .llong .sys_write
- .llong .compat_sys_open /* 5 */
- .llong .sys_close
- .llong .compat_sys_waitpid
- .llong .compat_sys_creat
- .llong .sys_link
- .llong .sys_unlink /* 10 */
- .llong .compat_sys_execve
- .llong .sys_chdir
- .llong .compat_sys_time
- .llong .sys_mknod
- .llong .sys_chmod /* 15 */
- .llong .sys_lchown
- .llong .sys_ni_syscall /* old break syscall */
- .llong .sys_ni_syscall /* old stat syscall */
- .llong .ppc32_lseek
- .llong .sys_getpid /* 20 */
- .llong .compat_sys_mount
- .llong .sys_oldumount
- .llong .sys_setuid
- .llong .sys_getuid
- .llong .compat_sys_stime /* 25 */
- .llong .compat_sys_ptrace
- .llong .sys_alarm
- .llong .sys_ni_syscall /* old fstat syscall */
- .llong .compat_sys_pause
- .llong .compat_sys_utime /* 30 */
- .llong .sys_ni_syscall /* old stty syscall */
- .llong .sys_ni_syscall /* old gtty syscall */
- .llong .compat_sys_access
- .llong .compat_sys_nice
- .llong .sys_ni_syscall /* 35 - old ftime syscall */
- .llong .sys_sync
- .llong .compat_sys_kill
- .llong .sys_rename
- .llong .compat_sys_mkdir
- .llong .sys_rmdir /* 40 */
- .llong .sys_dup
- .llong .sys_pipe
- .llong .compat_sys_times
- .llong .sys_ni_syscall /* old prof syscall */
- .llong .sys_brk /* 45 */
- .llong .sys_setgid
- .llong .sys_getgid
- .llong .sys_signal
- .llong .sys_geteuid
- .llong .sys_getegid /* 50 */
- .llong .sys_acct
- .llong .sys_umount
- .llong .sys_ni_syscall /* old lock syscall */
- .llong .compat_sys_ioctl
- .llong .compat_sys_fcntl /* 55 */
- .llong .sys_ni_syscall /* old mpx syscall */
- .llong .compat_sys_setpgid
- .llong .sys_ni_syscall /* old ulimit syscall */
- .llong .sys_olduname
- .llong .compat_sys_umask /* 60 */
- .llong .sys_chroot
- .llong .sys_ustat
- .llong .sys_dup2
- .llong .sys_getppid
- .llong .sys_getpgrp /* 65 */
- .llong .sys_setsid
- .llong .compat_sys_sigaction
- .llong .sys_sgetmask
- .llong .compat_sys_ssetmask
- .llong .sys_setreuid /* 70 */
- .llong .sys_setregid
- .llong .ppc32_sigsuspend
- .llong .compat_sys_sigpending
- .llong .compat_sys_sethostname
- .llong .compat_sys_setrlimit /* 75 */
- .llong .compat_sys_old_getrlimit
- .llong .compat_sys_getrusage
- .llong .compat_sys_gettimeofday
- .llong .compat_sys_settimeofday
- .llong .compat_sys_getgroups /* 80 */
- .llong .compat_sys_setgroups
- .llong .sys_ni_syscall /* old select syscall */
- .llong .sys_symlink
- .llong .sys_ni_syscall /* old lstat syscall */
- .llong .compat_sys_readlink /* 85 */
- .llong .sys_uselib
- .llong .sys_swapon
- .llong .sys_reboot
- .llong .old32_readdir
- .llong .sys_mmap /* 90 */
- .llong .sys_munmap
- .llong .sys_truncate
- .llong .sys_ftruncate
- .llong .sys_fchmod
- .llong .sys_fchown /* 95 */
- .llong .compat_sys_getpriority
- .llong .compat_sys_setpriority
- .llong .sys_ni_syscall /* old profil syscall */
- .llong .compat_sys_statfs
- .llong .compat_sys_fstatfs /* 100 */
- .llong .sys_ni_syscall /* old ioperm syscall */
- .llong .compat_sys_socketcall
- .llong .compat_sys_syslog
- .llong .compat_sys_setitimer
- .llong .compat_sys_getitimer /* 105 */
- .llong .compat_sys_newstat
- .llong .compat_sys_newlstat
- .llong .compat_sys_newfstat
- .llong .sys_uname
- .llong .sys_ni_syscall /* 110 old iopl syscall */
- .llong .sys_vhangup
- .llong .sys_ni_syscall /* old idle syscall */
- .llong .sys_ni_syscall /* old vm86 syscall */
- .llong .compat_sys_wait4
- .llong .sys_swapoff /* 115 */
- .llong .compat_sys_sysinfo
- .llong .sys32_ipc
- .llong .sys_fsync
- .llong .ppc32_sigreturn
- .llong .ppc_clone /* 120 */
- .llong .compat_sys_setdomainname
- .llong .ppc_newuname
- .llong .sys_ni_syscall /* old modify_ldt syscall */
- .llong .compat_sys_adjtimex
- .llong .sys_mprotect /* 125 */
- .llong .compat_sys_sigprocmask
- .llong .sys_ni_syscall /* old create_module syscall */
- .llong .sys_init_module
- .llong .sys_delete_module
- .llong .sys_ni_syscall /* 130 old get_kernel_syms syscall */
- .llong .sys_quotactl
- .llong .compat_sys_getpgid
- .llong .sys_fchdir
- .llong .sys_bdflush
- .llong .compat_sys_sysfs /* 135 */
- .llong .ppc64_personality
- .llong .sys_ni_syscall /* for afs_syscall */
- .llong .sys_setfsuid
- .llong .sys_setfsgid
- .llong .sys_llseek /* 140 */
- .llong .compat_sys_getdents
- .llong .ppc32_select
- .llong .sys_flock
- .llong .sys_msync
- .llong .compat_sys_readv /* 145 */
- .llong .compat_sys_writev
- .llong .compat_sys_getsid
- .llong .sys_fdatasync
- .llong .compat_sys_sysctl
- .llong .sys_mlock /* 150 */
- .llong .sys_munlock
- .llong .sys_mlockall
- .llong .sys_munlockall
- .llong .compat_sys_sched_setparam
- .llong .compat_sys_sched_getparam /* 155 */
- .llong .compat_sys_sched_setscheduler
- .llong .compat_sys_sched_getscheduler
- .llong .sys_sched_yield
- .llong .compat_sys_sched_get_priority_max
- .llong .compat_sys_sched_get_priority_min /* 160 */
- .llong .compat_sys_sched_rr_get_interval
- .llong .compat_sys_nanosleep
- .llong .sys_mremap
- .llong .sys_setresuid
- .llong .sys_getresuid /* 165 */
- .llong .sys_ni_syscall /* old query_module syscall */
- .llong .sys_poll
- .llong .compat_sys_nfsservctl
- .llong .sys_setresgid
- .llong .sys_getresgid /* 170 */
- .llong .compat_sys_prctl
- .llong .ppc32_rt_sigreturn
- .llong .compat_sys_rt_sigaction
- .llong .compat_sys_rt_sigprocmask
- .llong .compat_sys_rt_sigpending /* 175 */
- .llong .compat_sys_rt_sigtimedwait
- .llong .compat_sys_rt_sigqueueinfo
- .llong .ppc32_rt_sigsuspend
- .llong .compat_sys_pread64
- .llong .compat_sys_pwrite64 /* 180 */
- .llong .sys_chown
- .llong .sys_getcwd
- .llong .sys_capget
- .llong .sys_capset
- .llong .compat_sys_sigaltstack /* 185 */
- .llong .compat_sys_sendfile
- .llong .sys_ni_syscall /* reserved for streams1 */
- .llong .sys_ni_syscall /* reserved for streams2 */
- .llong .ppc_vfork
- .llong .compat_sys_getrlimit /* 190 */
- .llong .compat_sys_readahead
- .llong .compat_sys_mmap2
- .llong .compat_sys_truncate64
- .llong .compat_sys_ftruncate64
- .llong .sys_stat64 /* 195 */
- .llong .sys_lstat64
- .llong .sys_fstat64
- .llong .compat_sys_pciconfig_read
- .llong .compat_sys_pciconfig_write
- .llong .compat_sys_pciconfig_iobase /* 200 - pciconfig_iobase */
- .llong .sys_ni_syscall /* reserved for MacOnLinux */
- .llong .sys_getdents64
- .llong .sys_pivot_root
- .llong .compat_sys_fcntl64
- .llong .sys_madvise /* 205 */
- .llong .sys_mincore
- .llong .sys_gettid
- .llong .sys_tkill
- .llong .sys_setxattr
- .llong .sys_lsetxattr /* 210 */
- .llong .sys_fsetxattr
- .llong .sys_getxattr
- .llong .sys_lgetxattr
- .llong .sys_fgetxattr
- .llong .sys_listxattr /* 215 */
- .llong .sys_llistxattr
- .llong .sys_flistxattr
- .llong .sys_removexattr
- .llong .sys_lremovexattr
- .llong .sys_fremovexattr /* 220 */
- .llong .compat_sys_futex
- .llong .compat_sys_sched_setaffinity
- .llong .compat_sys_sched_getaffinity
- .llong .sys_ni_syscall
- .llong .sys_ni_syscall /* 225 - reserved for tux */
- .llong .compat_sys_sendfile64
- .llong .compat_sys_io_setup
- .llong .sys_io_destroy
- .llong .compat_sys_io_getevents
- .llong .compat_sys_io_submit
- .llong .sys_io_cancel
- .llong .sys_set_tid_address
- .llong .ppc32_fadvise64
- .llong .sys_exit_group
- .llong .ppc32_lookup_dcookie /* 235 */
- .llong .sys_epoll_create
- .llong .sys_epoll_ctl
- .llong .sys_epoll_wait
- .llong .sys_remap_file_pages
- .llong .ppc32_timer_create /* 240 */
- .llong .compat_sys_timer_settime
- .llong .compat_sys_timer_gettime
- .llong .sys_timer_getoverrun
- .llong .sys_timer_delete
- .llong .compat_sys_clock_settime/* 245 */
- .llong .compat_sys_clock_gettime
- .llong .compat_sys_clock_getres
- .llong .compat_sys_clock_nanosleep
- .llong .ppc32_swapcontext
- .llong .compat_sys_tgkill /* 250 */
- .llong .compat_sys_utimes
- .llong .compat_sys_statfs64
- .llong .compat_sys_fstatfs64
- .llong .ppc_fadvise64_64 /* 32bit only fadvise64_64 */
- .llong .ppc_rtas /* 255 */
- .llong .sys_ni_syscall /* 256 reserved for sys_debug_setcontext */
- .llong .sys_ni_syscall /* 257 reserved for vserver */
- .llong .sys_ni_syscall /* 258 reserved for new sys_remap_file_pages */
- .llong .compat_sys_mbind
- .llong .compat_sys_get_mempolicy /* 260 */
- .llong .compat_sys_set_mempolicy
- .llong .compat_sys_mq_open
- .llong .sys_mq_unlink
- .llong .compat_sys_mq_timedsend
- .llong .compat_sys_mq_timedreceive /* 265 */
- .llong .compat_sys_mq_notify
- .llong .compat_sys_mq_getsetattr
- .llong .compat_sys_kexec_load
- .llong .compat_sys_add_key
- .llong .compat_sys_request_key /* 270 */
- .llong .compat_sys_keyctl
- .llong .compat_sys_waitid
- .llong .compat_sys_ioprio_set
- .llong .compat_sys_ioprio_get
- .llong .sys_inotify_init /* 275 */
- .llong .sys_inotify_add_watch
- .llong .sys_inotify_rm_watch
-
- .balign 8
-_GLOBAL(sys_call_table)
- .llong .sys_restart_syscall /* 0 */
- .llong .sys_exit
- .llong .ppc_fork
- .llong .sys_read
- .llong .sys_write
- .llong .sys_open /* 5 */
- .llong .sys_close
- .llong .sys_waitpid
- .llong .sys_creat
- .llong .sys_link
- .llong .sys_unlink /* 10 */
- .llong .sys_execve
- .llong .sys_chdir
- .llong .sys64_time
- .llong .sys_mknod
- .llong .sys_chmod /* 15 */
- .llong .sys_lchown
- .llong .sys_ni_syscall /* old break syscall */
- .llong .sys_ni_syscall /* old stat syscall */
- .llong .sys_lseek
- .llong .sys_getpid /* 20 */
- .llong .sys_mount
- .llong .sys_ni_syscall /* old umount syscall */
- .llong .sys_setuid
- .llong .sys_getuid
- .llong .sys_stime /* 25 */
- .llong .sys_ptrace
- .llong .sys_alarm
- .llong .sys_ni_syscall /* old fstat syscall */
- .llong .sys_pause
- .llong .sys_utime /* 30 */
- .llong .sys_ni_syscall /* old stty syscall */
- .llong .sys_ni_syscall /* old gtty syscall */
- .llong .sys_access
- .llong .sys_nice
- .llong .sys_ni_syscall /* 35 - old ftime syscall */
- .llong .sys_sync
- .llong .sys_kill
- .llong .sys_rename
- .llong .sys_mkdir
- .llong .sys_rmdir /* 40 */
- .llong .sys_dup
- .llong .sys_pipe
- .llong .sys_times
- .llong .sys_ni_syscall /* old prof syscall */
- .llong .sys_brk /* 45 */
- .llong .sys_setgid
- .llong .sys_getgid
- .llong .sys_signal
- .llong .sys_geteuid
- .llong .sys_getegid /* 50 */
- .llong .sys_acct
- .llong .sys_umount
- .llong .sys_ni_syscall /* old lock syscall */
- .llong .sys_ioctl
- .llong .sys_fcntl /* 55 */
- .llong .sys_ni_syscall /* old mpx syscall */
- .llong .sys_setpgid
- .llong .sys_ni_syscall /* old ulimit syscall */
- .llong .sys_ni_syscall /* old uname syscall */
- .llong .sys_umask /* 60 */
- .llong .sys_chroot
- .llong .sys_ustat
- .llong .sys_dup2
- .llong .sys_getppid
- .llong .sys_getpgrp /* 65 */
- .llong .sys_setsid
- .llong .sys_ni_syscall
- .llong .sys_sgetmask
- .llong .sys_ssetmask
- .llong .sys_setreuid /* 70 */
- .llong .sys_setregid
- .llong .sys_ni_syscall
- .llong .sys_ni_syscall
- .llong .sys_sethostname
- .llong .sys_setrlimit /* 75 */
- .llong .sys_ni_syscall /* old getrlimit syscall */
- .llong .sys_getrusage
- .llong .sys_gettimeofday
- .llong .sys_settimeofday
- .llong .sys_getgroups /* 80 */
- .llong .sys_setgroups
- .llong .sys_ni_syscall /* old select syscall */
- .llong .sys_symlink
- .llong .sys_ni_syscall /* old lstat syscall */
- .llong .sys_readlink /* 85 */
- .llong .sys_uselib
- .llong .sys_swapon
- .llong .sys_reboot
- .llong .sys_ni_syscall /* old readdir syscall */
- .llong .sys_mmap /* 90 */
- .llong .sys_munmap
- .llong .sys_truncate
- .llong .sys_ftruncate
- .llong .sys_fchmod
- .llong .sys_fchown /* 95 */
- .llong .sys_getpriority
- .llong .sys_setpriority
- .llong .sys_ni_syscall /* old profil syscall holder */
- .llong .sys_statfs
- .llong .sys_fstatfs /* 100 */
- .llong .sys_ni_syscall /* old ioperm syscall */
- .llong .sys_socketcall
- .llong .sys_syslog
- .llong .sys_setitimer
- .llong .sys_getitimer /* 105 */
- .llong .sys_newstat
- .llong .sys_newlstat
- .llong .sys_newfstat
- .llong .sys_ni_syscall /* old uname syscall */
- .llong .sys_ni_syscall /* 110 old iopl syscall */
- .llong .sys_vhangup
- .llong .sys_ni_syscall /* old idle syscall */
- .llong .sys_ni_syscall /* old vm86 syscall */
- .llong .sys_wait4
- .llong .sys_swapoff /* 115 */
- .llong .sys_sysinfo
- .llong .sys_ipc
- .llong .sys_fsync
- .llong .sys_ni_syscall
- .llong .ppc_clone /* 120 */
- .llong .sys_setdomainname
- .llong .ppc_newuname
- .llong .sys_ni_syscall /* old modify_ldt syscall */
- .llong .sys_adjtimex
- .llong .sys_mprotect /* 125 */
- .llong .sys_ni_syscall
- .llong .sys_ni_syscall /* old create_module syscall */
- .llong .sys_init_module
- .llong .sys_delete_module
- .llong .sys_ni_syscall /* 130 old get_kernel_syms syscall */
- .llong .sys_quotactl
- .llong .sys_getpgid
- .llong .sys_fchdir
- .llong .sys_bdflush
- .llong .sys_sysfs /* 135 */
- .llong .ppc64_personality
- .llong .sys_ni_syscall /* for afs_syscall */
- .llong .sys_setfsuid
- .llong .sys_setfsgid
- .llong .sys_llseek /* 140 */
- .llong .sys_getdents
- .llong .sys_select
- .llong .sys_flock
- .llong .sys_msync
- .llong .sys_readv /* 145 */
- .llong .sys_writev
- .llong .sys_getsid
- .llong .sys_fdatasync
- .llong .sys_sysctl
- .llong .sys_mlock /* 150 */
- .llong .sys_munlock
- .llong .sys_mlockall
- .llong .sys_munlockall
- .llong .sys_sched_setparam
- .llong .sys_sched_getparam /* 155 */
- .llong .sys_sched_setscheduler
- .llong .sys_sched_getscheduler
- .llong .sys_sched_yield
- .llong .sys_sched_get_priority_max
- .llong .sys_sched_get_priority_min /* 160 */
- .llong .sys_sched_rr_get_interval
- .llong .sys_nanosleep
- .llong .sys_mremap
- .llong .sys_setresuid
- .llong .sys_getresuid /* 165 */
- .llong .sys_ni_syscall /* old query_module syscall */
- .llong .sys_poll
- .llong .sys_nfsservctl
- .llong .sys_setresgid
- .llong .sys_getresgid /* 170 */
- .llong .sys_prctl
- .llong .ppc64_rt_sigreturn
- .llong .sys_rt_sigaction
- .llong .sys_rt_sigprocmask
- .llong .sys_rt_sigpending /* 175 */
- .llong .sys_rt_sigtimedwait
- .llong .sys_rt_sigqueueinfo
- .llong .ppc64_rt_sigsuspend
- .llong .sys_pread64
- .llong .sys_pwrite64 /* 180 */
- .llong .sys_chown
- .llong .sys_getcwd
- .llong .sys_capget
- .llong .sys_capset
- .llong .sys_sigaltstack /* 185 */
- .llong .sys_sendfile64
- .llong .sys_ni_syscall /* reserved for streams1 */
- .llong .sys_ni_syscall /* reserved for streams2 */
- .llong .ppc_vfork
- .llong .sys_getrlimit /* 190 */
- .llong .sys_readahead
- .llong .sys_ni_syscall /* 32bit only mmap2 */
- .llong .sys_ni_syscall /* 32bit only truncate64 */
- .llong .sys_ni_syscall /* 32bit only ftruncate64 */
- .llong .sys_ni_syscall /* 195 - 32bit only stat64 */
- .llong .sys_ni_syscall /* 32bit only lstat64 */
- .llong .sys_ni_syscall /* 32bit only fstat64 */
- .llong .sys_pciconfig_read
- .llong .sys_pciconfig_write
- .llong .sys_pciconfig_iobase /* 200 - pciconfig_iobase */
- .llong .sys_ni_syscall /* reserved for MacOnLinux */
- .llong .sys_getdents64
- .llong .sys_pivot_root
- .llong .sys_ni_syscall /* 32bit only fcntl64 */
- .llong .sys_madvise /* 205 */
- .llong .sys_mincore
- .llong .sys_gettid
- .llong .sys_tkill
- .llong .sys_setxattr
- .llong .sys_lsetxattr /* 210 */
- .llong .sys_fsetxattr
- .llong .sys_getxattr
- .llong .sys_lgetxattr
- .llong .sys_fgetxattr
- .llong .sys_listxattr /* 215 */
- .llong .sys_llistxattr
- .llong .sys_flistxattr
- .llong .sys_removexattr
- .llong .sys_lremovexattr
- .llong .sys_fremovexattr /* 220 */
- .llong .sys_futex
- .llong .sys_sched_setaffinity
- .llong .sys_sched_getaffinity
- .llong .sys_ni_syscall
- .llong .sys_ni_syscall /* 225 - reserved for tux */
- .llong .sys_ni_syscall /* 32bit only sendfile64 */
- .llong .sys_io_setup
- .llong .sys_io_destroy
- .llong .sys_io_getevents
- .llong .sys_io_submit /* 230 */
- .llong .sys_io_cancel
- .llong .sys_set_tid_address
- .llong .sys_fadvise64
- .llong .sys_exit_group
- .llong .sys_lookup_dcookie /* 235 */
- .llong .sys_epoll_create
- .llong .sys_epoll_ctl
- .llong .sys_epoll_wait
- .llong .sys_remap_file_pages
- .llong .sys_timer_create /* 240 */
- .llong .sys_timer_settime
- .llong .sys_timer_gettime
- .llong .sys_timer_getoverrun
- .llong .sys_timer_delete
- .llong .sys_clock_settime /* 245 */
- .llong .sys_clock_gettime
- .llong .sys_clock_getres
- .llong .sys_clock_nanosleep
- .llong .ppc64_swapcontext
- .llong .sys_tgkill /* 250 */
- .llong .sys_utimes
- .llong .sys_statfs64
- .llong .sys_fstatfs64
- .llong .sys_ni_syscall /* 32bit only fadvise64_64 */
- .llong .ppc_rtas /* 255 */
- .llong .sys_ni_syscall /* 256 reserved for sys_debug_setcontext */
- .llong .sys_ni_syscall /* 257 reserved for vserver */
- .llong .sys_ni_syscall /* 258 reserved for new sys_remap_file_pages */
- .llong .sys_mbind
- .llong .sys_get_mempolicy /* 260 */
- .llong .sys_set_mempolicy
- .llong .sys_mq_open
- .llong .sys_mq_unlink
- .llong .sys_mq_timedsend
- .llong .sys_mq_timedreceive /* 265 */
- .llong .sys_mq_notify
- .llong .sys_mq_getsetattr
- .llong .sys_kexec_load
- .llong .sys_add_key
- .llong .sys_request_key /* 270 */
- .llong .sys_keyctl
- .llong .sys_waitid
- .llong .sys_ioprio_set
- .llong .sys_ioprio_get
- .llong .sys_inotify_init /* 275 */
- .llong .sys_inotify_add_watch
- .llong .sys_inotify_rm_watch
# Makefile for ppc64-specific library files..
#
-lib-y := checksum.o string.o strcase.o
-lib-y += copypage.o memcpy.o copyuser.o usercopy.o
-
-# Lock primitives are defined as no-ops in include/linux/spinlock.h
-# for non-SMP configs. Don't build the real versions.
-
-lib-$(CONFIG_SMP) += locks.o
-
-# e2a provides EBCDIC to ASCII conversions.
-ifdef CONFIG_PPC_ISERIES
-obj-y += e2a.o
-endif
-
-lib-$(CONFIG_DEBUG_KERNEL) += sstep.o
+lib-y := string.o
+++ /dev/null
-/*
- * This file contains assembly-language implementations
- * of IP-style 1's complement checksum routines.
- *
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Severely hacked about by Paul Mackerras (paulus@cs.anu.edu.au).
- */
-
-#include <linux/sys.h>
-#include <asm/processor.h>
-#include <asm/errno.h>
-#include <asm/ppc_asm.h>
-
-/*
- * ip_fast_csum(r3=buf, r4=len) -- Optimized for IP header
- * len is in words and is always >= 5.
- *
- * In practice len == 5, but this is not guaranteed. So this code does not
- * attempt to use doubleword instructions.
- */
-_GLOBAL(ip_fast_csum)
- lwz r0,0(r3)
- lwzu r5,4(r3)
- addic. r4,r4,-2
- addc r0,r0,r5
- mtctr r4
- blelr-
-1: lwzu r4,4(r3)
- adde r0,r0,r4
- bdnz 1b
- addze r0,r0 /* add in final carry */
- rldicl r4,r0,32,0 /* fold two 32-bit halves together */
- add r0,r0,r4
- srdi r0,r0,32
- rlwinm r3,r0,16,0,31 /* fold two halves together */
- add r3,r0,r3
- not r3,r3
- srwi r3,r3,16
- blr
-
-/*
- * Compute checksum of TCP or UDP pseudo-header:
- * csum_tcpudp_magic(r3=saddr, r4=daddr, r5=len, r6=proto, r7=sum)
- * No real gain trying to do this specially for 64 bit, but
- * the 32 bit addition may spill into the upper bits of
- * the doubleword so we still must fold it down from 64.
- */
-_GLOBAL(csum_tcpudp_magic)
- rlwimi r5,r6,16,0,15 /* put proto in upper half of len */
- addc r0,r3,r4 /* add 4 32-bit words together */
- adde r0,r0,r5
- adde r0,r0,r7
- rldicl r4,r0,32,0 /* fold 64 bit value */
- add r0,r4,r0
- srdi r0,r0,32
- rlwinm r3,r0,16,0,31 /* fold two halves together */
- add r3,r0,r3
- not r3,r3
- srwi r3,r3,16
- blr
-
-/*
- * Computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit).
- *
- * This code assumes at least halfword alignment, though the length
- * can be any number of bytes. The sum is accumulated in r5.
- *
- * csum_partial(r3=buff, r4=len, r5=sum)
- */
-_GLOBAL(csum_partial)
- subi r3,r3,8 /* we'll offset by 8 for the loads */
- srdi. r6,r4,3 /* divide by 8 for doubleword count */
- addic r5,r5,0 /* clear carry */
- beq 3f /* if we're doing < 8 bytes */
- andi. r0,r3,2 /* aligned on a word boundary already? */
- beq+ 1f
- lhz r6,8(r3) /* do 2 bytes to get aligned */
- addi r3,r3,2
- subi r4,r4,2
- addc r5,r5,r6
- srdi. r6,r4,3 /* recompute number of doublewords */
- beq 3f /* any left? */
-1: mtctr r6
-2: ldu r6,8(r3) /* main sum loop */
- adde r5,r5,r6
- bdnz 2b
- andi. r4,r4,7 /* compute bytes left to sum after doublewords */
-3: cmpwi 0,r4,4 /* is at least a full word left? */
- blt 4f
- lwz r6,8(r3) /* sum this word */
- addi r3,r3,4
- subi r4,r4,4
- adde r5,r5,r6
-4: cmpwi 0,r4,2 /* is at least a halfword left? */
- blt+ 5f
- lhz r6,8(r3) /* sum this halfword */
- addi r3,r3,2
- subi r4,r4,2
- adde r5,r5,r6
-5: cmpwi 0,r4,1 /* is at least a byte left? */
- bne+ 6f
- lbz r6,8(r3) /* sum this byte */
- slwi r6,r6,8 /* this byte is assumed to be the upper byte of a halfword */
- adde r5,r5,r6
-6: addze r5,r5 /* add in final carry */
- rldicl r4,r5,32,0 /* fold two 32-bit halves together */
- add r3,r4,r5
- srdi r3,r3,32
- blr
-
-/*
- * Computes the checksum of a memory block at src, length len,
- * and adds in "sum" (32-bit), while copying the block to dst.
- * If an access exception occurs on src or dst, it stores -EFAULT
- * to *src_err or *dst_err respectively, and (for an error on
- * src) zeroes the rest of dst.
- *
- * This code needs to be reworked to take advantage of 64 bit sum+copy.
- * However, due to tokenring halfword alignment problems this will be very
- * tricky. For now we'll leave it until we instrument it somehow.
- *
- * csum_partial_copy_generic(r3=src, r4=dst, r5=len, r6=sum, r7=src_err, r8=dst_err)
- */
-_GLOBAL(csum_partial_copy_generic)
- addic r0,r6,0
- subi r3,r3,4
- subi r4,r4,4
- srwi. r6,r5,2
- beq 3f /* if we're doing < 4 bytes */
- andi. r9,r4,2 /* Align dst to longword boundary */
- beq+ 1f
-81: lhz r6,4(r3) /* do 2 bytes to get aligned */
- addi r3,r3,2
- subi r5,r5,2
-91: sth r6,4(r4)
- addi r4,r4,2
- addc r0,r0,r6
- srwi. r6,r5,2 /* # words to do */
- beq 3f
-1: mtctr r6
-82: lwzu r6,4(r3) /* the bdnz has zero overhead, so it should */
-92: stwu r6,4(r4) /* be unnecessary to unroll this loop */
- adde r0,r0,r6
- bdnz 82b
- andi. r5,r5,3
-3: cmpwi 0,r5,2
- blt+ 4f
-83: lhz r6,4(r3)
- addi r3,r3,2
- subi r5,r5,2
-93: sth r6,4(r4)
- addi r4,r4,2
- adde r0,r0,r6
-4: cmpwi 0,r5,1
- bne+ 5f
-84: lbz r6,4(r3)
-94: stb r6,4(r4)
- slwi r6,r6,8 /* Upper byte of word */
- adde r0,r0,r6
-5: addze r3,r0 /* add in final carry (unlikely with 64-bit regs) */
- rldicl r4,r3,32,0 /* fold 64 bit value */
- add r3,r4,r3
- srdi r3,r3,32
- blr
-
-/* These shouldn't go in the fixup section, since that would
- cause the ex_table addresses to get out of order. */
-
- .globl src_error_1
-src_error_1:
- li r6,0
- subi r5,r5,2
-95: sth r6,4(r4)
- addi r4,r4,2
- srwi. r6,r5,2
- beq 3f
- mtctr r6
- .globl src_error_2
-src_error_2:
- li r6,0
-96: stwu r6,4(r4)
- bdnz 96b
-3: andi. r5,r5,3
- beq src_error
- .globl src_error_3
-src_error_3:
- li r6,0
- mtctr r5
- addi r4,r4,3
-97: stbu r6,1(r4)
- bdnz 97b
- .globl src_error
-src_error:
- cmpdi 0,r7,0
- beq 1f
- li r6,-EFAULT
- stw r6,0(r7)
-1: addze r3,r0
- blr
-
- .globl dst_error
-dst_error:
- cmpdi 0,r8,0
- beq 1f
- li r6,-EFAULT
- stw r6,0(r8)
-1: addze r3,r0
- blr
-
-.section __ex_table,"a"
- .align 3
- .llong 81b,src_error_1
- .llong 91b,dst_error
- .llong 82b,src_error_2
- .llong 92b,dst_error
- .llong 83b,src_error_3
- .llong 93b,dst_error
- .llong 84b,src_error_3
- .llong 94b,dst_error
- .llong 95b,dst_error
- .llong 96b,dst_error
- .llong 97b,dst_error
+++ /dev/null
-/*
- * arch/ppc64/lib/copypage.S
- *
- * Copyright (C) 2002 Paul Mackerras, IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-
-_GLOBAL(copy_page)
- std r31,-8(1)
- std r30,-16(1)
- std r29,-24(1)
- std r28,-32(1)
- std r27,-40(1)
- std r26,-48(1)
- std r25,-56(1)
- std r24,-64(1)
- std r23,-72(1)
- std r22,-80(1)
- std r21,-88(1)
- std r20,-96(1)
- li r5,4096/32 - 1
- addi r3,r3,-8
- li r12,5
-0: addi r5,r5,-24
- mtctr r12
- ld r22,640(4)
- ld r21,512(4)
- ld r20,384(4)
- ld r11,256(4)
- ld r9,128(4)
- ld r7,0(4)
- ld r25,648(4)
- ld r24,520(4)
- ld r23,392(4)
- ld r10,264(4)
- ld r8,136(4)
- ldu r6,8(4)
- cmpwi r5,24
-1: std r22,648(3)
- std r21,520(3)
- std r20,392(3)
- std r11,264(3)
- std r9,136(3)
- std r7,8(3)
- ld r28,648(4)
- ld r27,520(4)
- ld r26,392(4)
- ld r31,264(4)
- ld r30,136(4)
- ld r29,8(4)
- std r25,656(3)
- std r24,528(3)
- std r23,400(3)
- std r10,272(3)
- std r8,144(3)
- std r6,16(3)
- ld r22,656(4)
- ld r21,528(4)
- ld r20,400(4)
- ld r11,272(4)
- ld r9,144(4)
- ld r7,16(4)
- std r28,664(3)
- std r27,536(3)
- std r26,408(3)
- std r31,280(3)
- std r30,152(3)
- stdu r29,24(3)
- ld r25,664(4)
- ld r24,536(4)
- ld r23,408(4)
- ld r10,280(4)
- ld r8,152(4)
- ldu r6,24(4)
- bdnz 1b
- std r22,648(3)
- std r21,520(3)
- std r20,392(3)
- std r11,264(3)
- std r9,136(3)
- std r7,8(3)
- addi r4,r4,640
- addi r3,r3,648
- bge 0b
- mtctr r5
- ld r7,0(4)
- ld r8,8(4)
- ldu r9,16(4)
-3: ld r10,8(4)
- std r7,8(3)
- ld r7,16(4)
- std r8,16(3)
- ld r8,24(4)
- std r9,24(3)
- ldu r9,32(4)
- stdu r10,32(3)
- bdnz 3b
-4: ld r10,8(4)
- std r7,8(3)
- std r8,16(3)
- std r9,24(3)
- std r10,32(3)
-9: ld r20,-96(1)
- ld r21,-88(1)
- ld r22,-80(1)
- ld r23,-72(1)
- ld r24,-64(1)
- ld r25,-56(1)
- ld r26,-48(1)
- ld r27,-40(1)
- ld r28,-32(1)
- ld r29,-24(1)
- ld r30,-16(1)
- ld r31,-8(1)
- blr
+++ /dev/null
-/*
- * arch/ppc64/lib/copyuser.S
- *
- * Copyright (C) 2002 Paul Mackerras, IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-
- .align 7
-_GLOBAL(__copy_tofrom_user)
- /* first check for a whole page copy on a page boundary */
- cmpldi cr1,r5,16
- cmpdi cr6,r5,4096
- or r0,r3,r4
- neg r6,r3 /* LS 3 bits = # bytes to 8-byte dest bdry */
- andi. r0,r0,4095
- std r3,-24(r1)
- crand cr0*4+2,cr0*4+2,cr6*4+2
- std r4,-16(r1)
- std r5,-8(r1)
- dcbt 0,r4
- beq .Lcopy_page
- andi. r6,r6,7
- mtcrf 0x01,r5
- blt cr1,.Lshort_copy
- bne .Ldst_unaligned
-.Ldst_aligned:
- andi. r0,r4,7
- addi r3,r3,-16
- bne .Lsrc_unaligned
- srdi r7,r5,4
-20: ld r9,0(r4)
- addi r4,r4,-8
- mtctr r7
- andi. r5,r5,7
- bf cr7*4+0,22f
- addi r3,r3,8
- addi r4,r4,8
- mr r8,r9
- blt cr1,72f
-21: ld r9,8(r4)
-70: std r8,8(r3)
-22: ldu r8,16(r4)
-71: stdu r9,16(r3)
- bdnz 21b
-72: std r8,8(r3)
- beq+ 3f
- addi r3,r3,16
-23: ld r9,8(r4)
-.Ldo_tail:
- bf cr7*4+1,1f
- rotldi r9,r9,32
-73: stw r9,0(r3)
- addi r3,r3,4
-1: bf cr7*4+2,2f
- rotldi r9,r9,16
-74: sth r9,0(r3)
- addi r3,r3,2
-2: bf cr7*4+3,3f
- rotldi r9,r9,8
-75: stb r9,0(r3)
-3: li r3,0
- blr
-
-.Lsrc_unaligned:
- srdi r6,r5,3
- addi r5,r5,-16
- subf r4,r0,r4
- srdi r7,r5,4
- sldi r10,r0,3
- cmpldi cr6,r6,3
- andi. r5,r5,7
- mtctr r7
- subfic r11,r10,64
- add r5,r5,r0
- bt cr7*4+0,28f
-
-24: ld r9,0(r4) /* 3+2n loads, 2+2n stores */
-25: ld r0,8(r4)
- sld r6,r9,r10
-26: ldu r9,16(r4)
- srd r7,r0,r11
- sld r8,r0,r10
- or r7,r7,r6
- blt cr6,79f
-27: ld r0,8(r4)
- b 2f
-
-28: ld r0,0(r4) /* 4+2n loads, 3+2n stores */
-29: ldu r9,8(r4)
- sld r8,r0,r10
- addi r3,r3,-8
- blt cr6,5f
-30: ld r0,8(r4)
- srd r12,r9,r11
- sld r6,r9,r10
-31: ldu r9,16(r4)
- or r12,r8,r12
- srd r7,r0,r11
- sld r8,r0,r10
- addi r3,r3,16
- beq cr6,78f
-
-1: or r7,r7,r6
-32: ld r0,8(r4)
-76: std r12,8(r3)
-2: srd r12,r9,r11
- sld r6,r9,r10
-33: ldu r9,16(r4)
- or r12,r8,r12
-77: stdu r7,16(r3)
- srd r7,r0,r11
- sld r8,r0,r10
- bdnz 1b
-
-78: std r12,8(r3)
- or r7,r7,r6
-79: std r7,16(r3)
-5: srd r12,r9,r11
- or r12,r8,r12
-80: std r12,24(r3)
- bne 6f
- li r3,0
- blr
-6: cmpwi cr1,r5,8
- addi r3,r3,32
- sld r9,r9,r10
- ble cr1,.Ldo_tail
-34: ld r0,8(r4)
- srd r7,r0,r11
- or r9,r7,r9
- b .Ldo_tail
-
-.Ldst_unaligned:
- mtcrf 0x01,r6 /* put #bytes to 8B bdry into cr7 */
- subf r5,r6,r5
- li r7,0
- cmpldi r1,r5,16
- bf cr7*4+3,1f
-35: lbz r0,0(r4)
-81: stb r0,0(r3)
- addi r7,r7,1
-1: bf cr7*4+2,2f
-36: lhzx r0,r7,r4
-82: sthx r0,r7,r3
- addi r7,r7,2
-2: bf cr7*4+1,3f
-37: lwzx r0,r7,r4
-83: stwx r0,r7,r3
-3: mtcrf 0x01,r5
- add r4,r6,r4
- add r3,r6,r3
- b .Ldst_aligned
-
-.Lshort_copy:
- bf cr7*4+0,1f
-38: lwz r0,0(r4)
-39: lwz r9,4(r4)
- addi r4,r4,8
-84: stw r0,0(r3)
-85: stw r9,4(r3)
- addi r3,r3,8
-1: bf cr7*4+1,2f
-40: lwz r0,0(r4)
- addi r4,r4,4
-86: stw r0,0(r3)
- addi r3,r3,4
-2: bf cr7*4+2,3f
-41: lhz r0,0(r4)
- addi r4,r4,2
-87: sth r0,0(r3)
- addi r3,r3,2
-3: bf cr7*4+3,4f
-42: lbz r0,0(r4)
-88: stb r0,0(r3)
-4: li r3,0
- blr
-
-/*
- * exception handlers follow
- * we have to return the number of bytes not copied
- * for an exception on a load, we set the rest of the destination to 0
- */
-
-136:
-137:
- add r3,r3,r7
- b 1f
-130:
-131:
- addi r3,r3,8
-120:
-122:
-124:
-125:
-126:
-127:
-128:
-129:
-133:
- addi r3,r3,8
-121:
-132:
- addi r3,r3,8
-123:
-134:
-135:
-138:
-139:
-140:
-141:
-142:
-
-/*
- * here we have had a fault on a load and r3 points to the first
- * unmodified byte of the destination
- */
-1: ld r6,-24(r1)
- ld r4,-16(r1)
- ld r5,-8(r1)
- subf r6,r6,r3
- add r4,r4,r6
- subf r5,r6,r5 /* #bytes left to go */
-
-/*
- * first see if we can copy any more bytes before hitting another exception
- */
- mtctr r5
-43: lbz r0,0(r4)
- addi r4,r4,1
-89: stb r0,0(r3)
- addi r3,r3,1
- bdnz 43b
- li r3,0 /* huh? all copied successfully this time? */
- blr
-
-/*
- * here we have trapped again, need to clear ctr bytes starting at r3
- */
-143: mfctr r5
- li r0,0
- mr r4,r3
- mr r3,r5 /* return the number of bytes not copied */
-1: andi. r9,r4,7
- beq 3f
-90: stb r0,0(r4)
- addic. r5,r5,-1
- addi r4,r4,1
- bne 1b
- blr
-3: cmpldi cr1,r5,8
- srdi r9,r5,3
- andi. r5,r5,7
- blt cr1,93f
- mtctr r9
-91: std r0,0(r4)
- addi r4,r4,8
- bdnz 91b
-93: beqlr
- mtctr r5
-92: stb r0,0(r4)
- addi r4,r4,1
- bdnz 92b
- blr
-
-/*
- * exception handlers for stores: we just need to work
- * out how many bytes weren't copied
- */
-182:
-183:
- add r3,r3,r7
- b 1f
-180:
- addi r3,r3,8
-171:
-177:
- addi r3,r3,8
-170:
-172:
-176:
-178:
- addi r3,r3,4
-185:
- addi r3,r3,4
-173:
-174:
-175:
-179:
-181:
-184:
-186:
-187:
-188:
-189:
-1:
- ld r6,-24(r1)
- ld r5,-8(r1)
- add r6,r6,r5
- subf r3,r3,r6 /* #bytes not copied */
-190:
-191:
-192:
- blr /* #bytes not copied in r3 */
-
- .section __ex_table,"a"
- .align 3
- .llong 20b,120b
- .llong 21b,121b
- .llong 70b,170b
- .llong 22b,122b
- .llong 71b,171b
- .llong 72b,172b
- .llong 23b,123b
- .llong 73b,173b
- .llong 74b,174b
- .llong 75b,175b
- .llong 24b,124b
- .llong 25b,125b
- .llong 26b,126b
- .llong 27b,127b
- .llong 28b,128b
- .llong 29b,129b
- .llong 30b,130b
- .llong 31b,131b
- .llong 32b,132b
- .llong 76b,176b
- .llong 33b,133b
- .llong 77b,177b
- .llong 78b,178b
- .llong 79b,179b
- .llong 80b,180b
- .llong 34b,134b
- .llong 35b,135b
- .llong 81b,181b
- .llong 36b,136b
- .llong 82b,182b
- .llong 37b,137b
- .llong 83b,183b
- .llong 38b,138b
- .llong 39b,139b
- .llong 84b,184b
- .llong 85b,185b
- .llong 40b,140b
- .llong 86b,186b
- .llong 41b,141b
- .llong 87b,187b
- .llong 42b,142b
- .llong 88b,188b
- .llong 43b,143b
- .llong 89b,189b
- .llong 90b,190b
- .llong 91b,191b
- .llong 92b,192b
-
- .text
-
-/*
- * Routine to copy a whole page of data, optimized for POWER4.
- * On POWER4 it is more than 50% faster than the simple loop
- * above (following the .Ldst_aligned label) but it runs slightly
- * slower on POWER3.
- */
-.Lcopy_page:
- std r31,-32(1)
- std r30,-40(1)
- std r29,-48(1)
- std r28,-56(1)
- std r27,-64(1)
- std r26,-72(1)
- std r25,-80(1)
- std r24,-88(1)
- std r23,-96(1)
- std r22,-104(1)
- std r21,-112(1)
- std r20,-120(1)
- li r5,4096/32 - 1
- addi r3,r3,-8
- li r0,5
-0: addi r5,r5,-24
- mtctr r0
-20: ld r22,640(4)
-21: ld r21,512(4)
-22: ld r20,384(4)
-23: ld r11,256(4)
-24: ld r9,128(4)
-25: ld r7,0(4)
-26: ld r25,648(4)
-27: ld r24,520(4)
-28: ld r23,392(4)
-29: ld r10,264(4)
-30: ld r8,136(4)
-31: ldu r6,8(4)
- cmpwi r5,24
-1:
-32: std r22,648(3)
-33: std r21,520(3)
-34: std r20,392(3)
-35: std r11,264(3)
-36: std r9,136(3)
-37: std r7,8(3)
-38: ld r28,648(4)
-39: ld r27,520(4)
-40: ld r26,392(4)
-41: ld r31,264(4)
-42: ld r30,136(4)
-43: ld r29,8(4)
-44: std r25,656(3)
-45: std r24,528(3)
-46: std r23,400(3)
-47: std r10,272(3)
-48: std r8,144(3)
-49: std r6,16(3)
-50: ld r22,656(4)
-51: ld r21,528(4)
-52: ld r20,400(4)
-53: ld r11,272(4)
-54: ld r9,144(4)
-55: ld r7,16(4)
-56: std r28,664(3)
-57: std r27,536(3)
-58: std r26,408(3)
-59: std r31,280(3)
-60: std r30,152(3)
-61: stdu r29,24(3)
-62: ld r25,664(4)
-63: ld r24,536(4)
-64: ld r23,408(4)
-65: ld r10,280(4)
-66: ld r8,152(4)
-67: ldu r6,24(4)
- bdnz 1b
-68: std r22,648(3)
-69: std r21,520(3)
-70: std r20,392(3)
-71: std r11,264(3)
-72: std r9,136(3)
-73: std r7,8(3)
-74: addi r4,r4,640
-75: addi r3,r3,648
- bge 0b
- mtctr r5
-76: ld r7,0(4)
-77: ld r8,8(4)
-78: ldu r9,16(4)
-3:
-79: ld r10,8(4)
-80: std r7,8(3)
-81: ld r7,16(4)
-82: std r8,16(3)
-83: ld r8,24(4)
-84: std r9,24(3)
-85: ldu r9,32(4)
-86: stdu r10,32(3)
- bdnz 3b
-4:
-87: ld r10,8(4)
-88: std r7,8(3)
-89: std r8,16(3)
-90: std r9,24(3)
-91: std r10,32(3)
-9: ld r20,-120(1)
- ld r21,-112(1)
- ld r22,-104(1)
- ld r23,-96(1)
- ld r24,-88(1)
- ld r25,-80(1)
- ld r26,-72(1)
- ld r27,-64(1)
- ld r28,-56(1)
- ld r29,-48(1)
- ld r30,-40(1)
- ld r31,-32(1)
- li r3,0
- blr
-
-/*
- * on an exception, reset to the beginning and jump back into the
- * standard __copy_tofrom_user
- */
-100: ld r20,-120(1)
- ld r21,-112(1)
- ld r22,-104(1)
- ld r23,-96(1)
- ld r24,-88(1)
- ld r25,-80(1)
- ld r26,-72(1)
- ld r27,-64(1)
- ld r28,-56(1)
- ld r29,-48(1)
- ld r30,-40(1)
- ld r31,-32(1)
- ld r3,-24(r1)
- ld r4,-16(r1)
- li r5,4096
- b .Ldst_aligned
-
- .section __ex_table,"a"
- .align 3
- .llong 20b,100b
- .llong 21b,100b
- .llong 22b,100b
- .llong 23b,100b
- .llong 24b,100b
- .llong 25b,100b
- .llong 26b,100b
- .llong 27b,100b
- .llong 28b,100b
- .llong 29b,100b
- .llong 30b,100b
- .llong 31b,100b
- .llong 32b,100b
- .llong 33b,100b
- .llong 34b,100b
- .llong 35b,100b
- .llong 36b,100b
- .llong 37b,100b
- .llong 38b,100b
- .llong 39b,100b
- .llong 40b,100b
- .llong 41b,100b
- .llong 42b,100b
- .llong 43b,100b
- .llong 44b,100b
- .llong 45b,100b
- .llong 46b,100b
- .llong 47b,100b
- .llong 48b,100b
- .llong 49b,100b
- .llong 50b,100b
- .llong 51b,100b
- .llong 52b,100b
- .llong 53b,100b
- .llong 54b,100b
- .llong 55b,100b
- .llong 56b,100b
- .llong 57b,100b
- .llong 58b,100b
- .llong 59b,100b
- .llong 60b,100b
- .llong 61b,100b
- .llong 62b,100b
- .llong 63b,100b
- .llong 64b,100b
- .llong 65b,100b
- .llong 66b,100b
- .llong 67b,100b
- .llong 68b,100b
- .llong 69b,100b
- .llong 70b,100b
- .llong 71b,100b
- .llong 72b,100b
- .llong 73b,100b
- .llong 74b,100b
- .llong 75b,100b
- .llong 76b,100b
- .llong 77b,100b
- .llong 78b,100b
- .llong 79b,100b
- .llong 80b,100b
- .llong 81b,100b
- .llong 82b,100b
- .llong 83b,100b
- .llong 84b,100b
- .llong 85b,100b
- .llong 86b,100b
- .llong 87b,100b
- .llong 88b,100b
- .llong 89b,100b
- .llong 90b,100b
- .llong 91b,100b
+++ /dev/null
-/*
- * arch/ppc64/lib/e2a.c
- *
- * EBCDIC to ASCII conversion
- *
- * This function moved here from arch/ppc64/kernel/viopath.c
- *
- * (C) Copyright 2000-2004 IBM Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) anyu later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/module.h>
-
-unsigned char e2a(unsigned char x)
-{
- switch (x) {
- case 0xF0:
- return '0';
- case 0xF1:
- return '1';
- case 0xF2:
- return '2';
- case 0xF3:
- return '3';
- case 0xF4:
- return '4';
- case 0xF5:
- return '5';
- case 0xF6:
- return '6';
- case 0xF7:
- return '7';
- case 0xF8:
- return '8';
- case 0xF9:
- return '9';
- case 0xC1:
- return 'A';
- case 0xC2:
- return 'B';
- case 0xC3:
- return 'C';
- case 0xC4:
- return 'D';
- case 0xC5:
- return 'E';
- case 0xC6:
- return 'F';
- case 0xC7:
- return 'G';
- case 0xC8:
- return 'H';
- case 0xC9:
- return 'I';
- case 0xD1:
- return 'J';
- case 0xD2:
- return 'K';
- case 0xD3:
- return 'L';
- case 0xD4:
- return 'M';
- case 0xD5:
- return 'N';
- case 0xD6:
- return 'O';
- case 0xD7:
- return 'P';
- case 0xD8:
- return 'Q';
- case 0xD9:
- return 'R';
- case 0xE2:
- return 'S';
- case 0xE3:
- return 'T';
- case 0xE4:
- return 'U';
- case 0xE5:
- return 'V';
- case 0xE6:
- return 'W';
- case 0xE7:
- return 'X';
- case 0xE8:
- return 'Y';
- case 0xE9:
- return 'Z';
- }
- return ' ';
-}
-EXPORT_SYMBOL(e2a);
-
-
+++ /dev/null
-/*
- * Spin and read/write lock operations.
- *
- * Copyright (C) 2001-2004 Paul Mackerras <paulus@au.ibm.com>, IBM
- * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
- * Copyright (C) 2002 Dave Engebretsen <engebret@us.ibm.com>, IBM
- * Rework to support virtual processors
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/stringify.h>
-#include <asm/hvcall.h>
-#include <asm/iSeries/HvCall.h>
-
-/* waiting for a spinlock... */
-#if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
-
-void __spin_yield(raw_spinlock_t *lock)
-{
- unsigned int lock_value, holder_cpu, yield_count;
- struct paca_struct *holder_paca;
-
- lock_value = lock->slock;
- if (lock_value == 0)
- return;
- holder_cpu = lock_value & 0xffff;
- BUG_ON(holder_cpu >= NR_CPUS);
- holder_paca = &paca[holder_cpu];
- yield_count = holder_paca->lppaca.yield_count;
- if ((yield_count & 1) == 0)
- return; /* virtual cpu is currently running */
- rmb();
- if (lock->slock != lock_value)
- return; /* something has changed */
-#ifdef CONFIG_PPC_ISERIES
- HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
- ((u64)holder_cpu << 32) | yield_count);
-#else
- plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu),
- yield_count);
-#endif
-}
-
-/*
- * Waiting for a read lock or a write lock on a rwlock...
- * This turns out to be the same for read and write locks, since
- * we only know the holder if it is write-locked.
- */
-void __rw_yield(raw_rwlock_t *rw)
-{
- int lock_value;
- unsigned int holder_cpu, yield_count;
- struct paca_struct *holder_paca;
-
- lock_value = rw->lock;
- if (lock_value >= 0)
- return; /* no write lock at present */
- holder_cpu = lock_value & 0xffff;
- BUG_ON(holder_cpu >= NR_CPUS);
- holder_paca = &paca[holder_cpu];
- yield_count = holder_paca->lppaca.yield_count;
- if ((yield_count & 1) == 0)
- return; /* virtual cpu is currently running */
- rmb();
- if (rw->lock != lock_value)
- return; /* something has changed */
-#ifdef CONFIG_PPC_ISERIES
- HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
- ((u64)holder_cpu << 32) | yield_count);
-#else
- plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu),
- yield_count);
-#endif
-}
-#endif
-
-void __raw_spin_unlock_wait(raw_spinlock_t *lock)
-{
- while (lock->slock) {
- HMT_low();
- if (SHARED_PROCESSOR)
- __spin_yield(lock);
- }
- HMT_medium();
-}
-
-EXPORT_SYMBOL(__raw_spin_unlock_wait);
+++ /dev/null
-/*
- * arch/ppc64/lib/memcpy.S
- *
- * Copyright (C) 2002 Paul Mackerras, IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-
- .align 7
-_GLOBAL(memcpy)
- mtcrf 0x01,r5
- cmpldi cr1,r5,16
- neg r6,r3 # LS 3 bits = # bytes to 8-byte dest bdry
- andi. r6,r6,7
- dcbt 0,r4
- blt cr1,.Lshort_copy
- bne .Ldst_unaligned
-.Ldst_aligned:
- andi. r0,r4,7
- addi r3,r3,-16
- bne .Lsrc_unaligned
- srdi r7,r5,4
- ld r9,0(r4)
- addi r4,r4,-8
- mtctr r7
- andi. r5,r5,7
- bf cr7*4+0,2f
- addi r3,r3,8
- addi r4,r4,8
- mr r8,r9
- blt cr1,3f
-1: ld r9,8(r4)
- std r8,8(r3)
-2: ldu r8,16(r4)
- stdu r9,16(r3)
- bdnz 1b
-3: std r8,8(r3)
- beqlr
- addi r3,r3,16
- ld r9,8(r4)
-.Ldo_tail:
- bf cr7*4+1,1f
- rotldi r9,r9,32
- stw r9,0(r3)
- addi r3,r3,4
-1: bf cr7*4+2,2f
- rotldi r9,r9,16
- sth r9,0(r3)
- addi r3,r3,2
-2: bf cr7*4+3,3f
- rotldi r9,r9,8
- stb r9,0(r3)
-3: blr
-
-.Lsrc_unaligned:
- srdi r6,r5,3
- addi r5,r5,-16
- subf r4,r0,r4
- srdi r7,r5,4
- sldi r10,r0,3
- cmpdi cr6,r6,3
- andi. r5,r5,7
- mtctr r7
- subfic r11,r10,64
- add r5,r5,r0
-
- bt cr7*4+0,0f
-
- ld r9,0(r4) # 3+2n loads, 2+2n stores
- ld r0,8(r4)
- sld r6,r9,r10
- ldu r9,16(r4)
- srd r7,r0,r11
- sld r8,r0,r10
- or r7,r7,r6
- blt cr6,4f
- ld r0,8(r4)
- # s1<< in r8, d0=(s0<<|s1>>) in r7, s3 in r0, s2 in r9, nix in r6 & r12
- b 2f
-
-0: ld r0,0(r4) # 4+2n loads, 3+2n stores
- ldu r9,8(r4)
- sld r8,r0,r10
- addi r3,r3,-8
- blt cr6,5f
- ld r0,8(r4)
- srd r12,r9,r11
- sld r6,r9,r10
- ldu r9,16(r4)
- or r12,r8,r12
- srd r7,r0,r11
- sld r8,r0,r10
- addi r3,r3,16
- beq cr6,3f
-
- # d0=(s0<<|s1>>) in r12, s1<< in r6, s2>> in r7, s2<< in r8, s3 in r9
-1: or r7,r7,r6
- ld r0,8(r4)
- std r12,8(r3)
-2: srd r12,r9,r11
- sld r6,r9,r10
- ldu r9,16(r4)
- or r12,r8,r12
- stdu r7,16(r3)
- srd r7,r0,r11
- sld r8,r0,r10
- bdnz 1b
-
-3: std r12,8(r3)
- or r7,r7,r6
-4: std r7,16(r3)
-5: srd r12,r9,r11
- or r12,r8,r12
- std r12,24(r3)
- beqlr
- cmpwi cr1,r5,8
- addi r3,r3,32
- sld r9,r9,r10
- ble cr1,.Ldo_tail
- ld r0,8(r4)
- srd r7,r0,r11
- or r9,r7,r9
- b .Ldo_tail
-
-.Ldst_unaligned:
- mtcrf 0x01,r6 # put #bytes to 8B bdry into cr7
- subf r5,r6,r5
- li r7,0
- cmpldi r1,r5,16
- bf cr7*4+3,1f
- lbz r0,0(r4)
- stb r0,0(r3)
- addi r7,r7,1
-1: bf cr7*4+2,2f
- lhzx r0,r7,r4
- sthx r0,r7,r3
- addi r7,r7,2
-2: bf cr7*4+1,3f
- lwzx r0,r7,r4
- stwx r0,r7,r3
-3: mtcrf 0x01,r5
- add r4,r6,r4
- add r3,r6,r3
- b .Ldst_aligned
-
-.Lshort_copy:
- bf cr7*4+0,1f
- lwz r0,0(r4)
- lwz r9,4(r4)
- addi r4,r4,8
- stw r0,0(r3)
- stw r9,4(r3)
- addi r3,r3,8
-1: bf cr7*4+1,2f
- lwz r0,0(r4)
- addi r4,r4,4
- stw r0,0(r3)
- addi r3,r3,4
-2: bf cr7*4+2,3f
- lhz r0,0(r4)
- addi r4,r4,2
- sth r0,0(r3)
- addi r3,r3,2
-3: bf cr7*4+3,4f
- lbz r0,0(r4)
- stb r0,0(r3)
-4: blr
+++ /dev/null
-/*
- * Single-step support.
- *
- * Copyright (C) 2004 Paul Mackerras <paulus@au.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-#include <asm/sstep.h>
-#include <asm/processor.h>
-
-extern char system_call_common[];
-
-/* Bits in SRR1 that are copied from MSR */
-#define MSR_MASK 0xffffffff87c0ffff
-
-/*
- * Determine whether a conditional branch instruction would branch.
- */
-static int branch_taken(unsigned int instr, struct pt_regs *regs)
-{
- unsigned int bo = (instr >> 21) & 0x1f;
- unsigned int bi;
-
- if ((bo & 4) == 0) {
- /* decrement counter */
- --regs->ctr;
- if (((bo >> 1) & 1) ^ (regs->ctr == 0))
- return 0;
- }
- if ((bo & 0x10) == 0) {
- /* check bit from CR */
- bi = (instr >> 16) & 0x1f;
- if (((regs->ccr >> (31 - bi)) & 1) != ((bo >> 3) & 1))
- return 0;
- }
- return 1;
-}
-
-/*
- * Emulate instructions that cause a transfer of control.
- * Returns 1 if the step was emulated, 0 if not,
- * or -1 if the instruction is one that should not be stepped,
- * such as an rfid, or a mtmsrd that would clear MSR_RI.
- */
-int emulate_step(struct pt_regs *regs, unsigned int instr)
-{
- unsigned int opcode, rd;
- unsigned long int imm;
-
- opcode = instr >> 26;
- switch (opcode) {
- case 16: /* bc */
- imm = (signed short)(instr & 0xfffc);
- if ((instr & 2) == 0)
- imm += regs->nip;
- regs->nip += 4;
- if ((regs->msr & MSR_SF) == 0)
- regs->nip &= 0xffffffffUL;
- if (instr & 1)
- regs->link = regs->nip;
- if (branch_taken(instr, regs))
- regs->nip = imm;
- return 1;
- case 17: /* sc */
- /*
- * N.B. this uses knowledge about how the syscall
- * entry code works. If that is changed, this will
- * need to be changed also.
- */
- regs->gpr[9] = regs->gpr[13];
- regs->gpr[11] = regs->nip + 4;
- regs->gpr[12] = regs->msr & MSR_MASK;
- regs->gpr[13] = (unsigned long) get_paca();
- regs->nip = (unsigned long) &system_call_common;
- regs->msr = MSR_KERNEL;
- return 1;
- case 18: /* b */
- imm = instr & 0x03fffffc;
- if (imm & 0x02000000)
- imm -= 0x04000000;
- if ((instr & 2) == 0)
- imm += regs->nip;
- if (instr & 1) {
- regs->link = regs->nip + 4;
- if ((regs->msr & MSR_SF) == 0)
- regs->link &= 0xffffffffUL;
- }
- if ((regs->msr & MSR_SF) == 0)
- imm &= 0xffffffffUL;
- regs->nip = imm;
- return 1;
- case 19:
- switch (instr & 0x7fe) {
- case 0x20: /* bclr */
- case 0x420: /* bcctr */
- imm = (instr & 0x400)? regs->ctr: regs->link;
- regs->nip += 4;
- if ((regs->msr & MSR_SF) == 0) {
- regs->nip &= 0xffffffffUL;
- imm &= 0xffffffffUL;
- }
- if (instr & 1)
- regs->link = regs->nip;
- if (branch_taken(instr, regs))
- regs->nip = imm;
- return 1;
- case 0x24: /* rfid, scary */
- return -1;
- }
- case 31:
- rd = (instr >> 21) & 0x1f;
- switch (instr & 0x7fe) {
- case 0xa6: /* mfmsr */
- regs->gpr[rd] = regs->msr & MSR_MASK;
- regs->nip += 4;
- if ((regs->msr & MSR_SF) == 0)
- regs->nip &= 0xffffffffUL;
- return 1;
- case 0x164: /* mtmsrd */
- /* only MSR_EE and MSR_RI get changed if bit 15 set */
- /* mtmsrd doesn't change MSR_HV and MSR_ME */
- imm = (instr & 0x10000)? 0x8002: 0xefffffffffffefffUL;
- imm = (regs->msr & MSR_MASK & ~imm)
- | (regs->gpr[rd] & imm);
- if ((imm & MSR_RI) == 0)
- /* can't step mtmsrd that would clear MSR_RI */
- return -1;
- regs->msr = imm;
- regs->nip += 4;
- if ((imm & MSR_SF) == 0)
- regs->nip &= 0xffffffffUL;
- return 1;
- }
- }
- return 0;
-}
+++ /dev/null
-/*
- * c 2001 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/ctype.h>
-
-int strcasecmp(const char *s1, const char *s2)
-{
- int c1, c2;
-
- do {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- } while (c1 == c2 && c1 != 0);
- return c1 - c2;
-}
-
-int strncasecmp(const char *s1, const char *s2, int n)
-{
- int c1, c2;
-
- do {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- } while ((--n > 0) && c1 == c2 && c1 != 0);
- return c1 - c2;
-}
subf r3,r3,r4
blr
-_GLOBAL(memset)
- neg r0,r3
- rlwimi r4,r4,8,16,23
- andi. r0,r0,7 /* # bytes to be 8-byte aligned */
- rlwimi r4,r4,16,0,15
- cmplw cr1,r5,r0 /* do we get that far? */
- rldimi r4,r4,32,0
- mtcrf 1,r0
- mr r6,r3
- blt cr1,8f
- beq+ 3f /* if already 8-byte aligned */
- subf r5,r0,r5
- bf 31,1f
- stb r4,0(r6)
- addi r6,r6,1
-1: bf 30,2f
- sth r4,0(r6)
- addi r6,r6,2
-2: bf 29,3f
- stw r4,0(r6)
- addi r6,r6,4
-3: srdi. r0,r5,6
- clrldi r5,r5,58
- mtctr r0
- beq 5f
-4: std r4,0(r6)
- std r4,8(r6)
- std r4,16(r6)
- std r4,24(r6)
- std r4,32(r6)
- std r4,40(r6)
- std r4,48(r6)
- std r4,56(r6)
- addi r6,r6,64
- bdnz 4b
-5: srwi. r0,r5,3
- clrlwi r5,r5,29
- mtcrf 1,r0
- beq 8f
- bf 29,6f
- std r4,0(r6)
- std r4,8(r6)
- std r4,16(r6)
- std r4,24(r6)
- addi r6,r6,32
-6: bf 30,7f
- std r4,0(r6)
- std r4,8(r6)
- addi r6,r6,16
-7: bf 31,8f
- std r4,0(r6)
- addi r6,r6,8
-8: cmpwi r5,0
- mtcrf 1,r5
- beqlr+
- bf 29,9f
- stw r4,0(r6)
- addi r6,r6,4
-9: bf 30,10f
- sth r4,0(r6)
- addi r6,r6,2
-10: bflr 31
- stb r4,0(r6)
- blr
-
-_GLOBAL(memmove)
- cmplw 0,r3,r4
- bgt .backwards_memcpy
- b .memcpy
-
-_GLOBAL(backwards_memcpy)
- rlwinm. r7,r5,32-3,3,31 /* r0 = r5 >> 3 */
- add r6,r3,r5
- add r4,r4,r5
- beq 2f
- andi. r0,r6,3
- mtctr r7
- bne 5f
-1: lwz r7,-4(r4)
- lwzu r8,-8(r4)
- stw r7,-4(r6)
- stwu r8,-8(r6)
- bdnz 1b
- andi. r5,r5,7
-2: cmplwi 0,r5,4
- blt 3f
- lwzu r0,-4(r4)
- subi r5,r5,4
- stwu r0,-4(r6)
-3: cmpwi 0,r5,0
- beqlr
- mtctr r5
-4: lbzu r0,-1(r4)
- stbu r0,-1(r6)
- bdnz 4b
- blr
-5: mtctr r0
-6: lbzu r7,-1(r4)
- stbu r7,-1(r6)
- bdnz 6b
- subf r5,r0,r5
- rlwinm. r7,r5,32-3,3,31
- beq 2b
- mtctr r7
- b 1b
-
_GLOBAL(memcmp)
cmpwi 0,r5,0
ble- 2f
+++ /dev/null
-/*
- * Functions which are too large to be inlined.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_READ, from, n)))
- n = __copy_from_user(to, from, n);
- else
- memset(to, 0, n);
- return n;
-}
-
-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_WRITE, to, n)))
- n = __copy_to_user(to, from, n);
- return n;
-}
-
-unsigned long copy_in_user(void __user *to, const void __user *from,
- unsigned long n)
-{
- might_sleep();
- if (likely(access_ok(VERIFY_READ, from, n) &&
- access_ok(VERIFY_WRITE, to, n)))
- n =__copy_tofrom_user(to, from, n);
- return n;
-}
-
-EXPORT_SYMBOL(copy_from_user);
-EXPORT_SYMBOL(copy_to_user);
-EXPORT_SYMBOL(copy_in_user);
-
projects / karo-tx-linux.git / commitdiff