Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: convert to generic compat_sys_ptrace parisc: add rtc platform driver parisc: initialize unwinder much earlier parisc: add new syscalls parisc: hijack jump to start_kernel parisc: add pdc_coproc_cfg_unlocked and set_firmware_width_unlocked parisc: move include/asm-parisc to arch/parisc/include/asm parisc: move pdc_result to real2.S parisc: unify CCIO_COLLECT_STATS implementation parisc: add arch/parisc/kernel/.gitignore parisc: ropes.h - fix <asm-parisc/*> -> <asm/*> parisc: parisc-agp - fix <asm-parisc/*> -> <asm/*> Resolve remove/rename conflict: include/asm-parisc/a.out.h is no longer relevant.
This commit is contained in:
1
arch/parisc/kernel/.gitignore
vendored
Normal file
1
arch/parisc/kernel/.gitignore
vendored
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@@ -0,0 +1 @@
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vmlinux.lds
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@@ -290,5 +290,8 @@ int main(void)
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DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
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DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
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DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
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BLANK();
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DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
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BLANK();
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return 0;
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}
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@@ -71,8 +71,8 @@
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#include <asm/processor.h> /* for boot_cpu_data */
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static DEFINE_SPINLOCK(pdc_lock);
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static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
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static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
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extern unsigned long pdc_result[NUM_PDC_RESULT];
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extern unsigned long pdc_result2[NUM_PDC_RESULT];
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#ifdef CONFIG_64BIT
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#define WIDE_FIRMWARE 0x1
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@@ -150,26 +150,40 @@ static void convert_to_wide(unsigned long *addr)
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#endif
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}
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#ifdef CONFIG_64BIT
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void __init set_firmware_width_unlocked(void)
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{
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int ret;
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ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES,
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__pa(pdc_result), 0);
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convert_to_wide(pdc_result);
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if (pdc_result[0] != NARROW_FIRMWARE)
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parisc_narrow_firmware = 0;
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}
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/**
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* set_firmware_width - Determine if the firmware is wide or narrow.
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*
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* This function must be called before any pdc_* function that uses the convert_to_wide
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* function.
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* This function must be called before any pdc_* function that uses the
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* convert_to_wide function.
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*/
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void __init set_firmware_width(void)
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{
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#ifdef CONFIG_64BIT
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int retval;
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unsigned long flags;
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spin_lock_irqsave(&pdc_lock, flags);
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retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
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convert_to_wide(pdc_result);
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if(pdc_result[0] != NARROW_FIRMWARE)
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parisc_narrow_firmware = 0;
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spin_unlock_irqrestore(&pdc_lock, flags);
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#endif
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spin_lock_irqsave(&pdc_lock, flags);
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set_firmware_width_unlocked();
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spin_unlock_irqrestore(&pdc_lock, flags);
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}
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#else
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void __init set_firmware_width_unlocked(void) {
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return;
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}
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void __init set_firmware_width(void) {
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return;
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}
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#endif /*CONFIG_64BIT*/
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/**
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* pdc_emergency_unlock - Unlock the linux pdc lock
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@@ -288,6 +302,20 @@ int pdc_chassis_warn(unsigned long *warn)
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return retval;
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}
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int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
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{
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int ret;
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ret = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
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convert_to_wide(pdc_result);
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pdc_coproc_info->ccr_functional = pdc_result[0];
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pdc_coproc_info->ccr_present = pdc_result[1];
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pdc_coproc_info->revision = pdc_result[17];
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pdc_coproc_info->model = pdc_result[18];
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return ret;
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}
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/**
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* pdc_coproc_cfg - To identify coprocessors attached to the processor.
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* @pdc_coproc_info: Return buffer address.
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@@ -297,19 +325,14 @@ int pdc_chassis_warn(unsigned long *warn)
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*/
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int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
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{
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int retval;
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int ret;
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unsigned long flags;
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spin_lock_irqsave(&pdc_lock, flags);
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retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
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convert_to_wide(pdc_result);
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pdc_coproc_info->ccr_functional = pdc_result[0];
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pdc_coproc_info->ccr_present = pdc_result[1];
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pdc_coproc_info->revision = pdc_result[17];
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pdc_coproc_info->model = pdc_result[18];
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spin_unlock_irqrestore(&pdc_lock, flags);
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spin_lock_irqsave(&pdc_lock, flags);
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ret = pdc_coproc_cfg_unlocked(pdc_coproc_info);
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spin_unlock_irqrestore(&pdc_lock, flags);
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return retval;
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return ret;
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}
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/**
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|
@@ -121,7 +121,7 @@ $pgt_fill_loop:
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copy %r0,%r2
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/* And the RFI Target address too */
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load32 start_kernel,%r11
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load32 start_parisc,%r11
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/* And the initial task pointer */
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load32 init_thread_union,%r6
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|
@@ -4,6 +4,7 @@
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* Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
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* Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
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* Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
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* Copyright (C) 2008 Helge Deller <deller@gmx.de>
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*/
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#include <linux/kernel.h>
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@@ -27,15 +28,149 @@
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/* PSW bits we allow the debugger to modify */
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#define USER_PSW_BITS (PSW_N | PSW_V | PSW_CB)
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#undef DEBUG_PTRACE
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/*
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* Called by kernel/ptrace.c when detaching..
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*
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* Make sure single step bits etc are not set.
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*/
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void ptrace_disable(struct task_struct *task)
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{
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task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
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#ifdef DEBUG_PTRACE
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#define DBG(x...) printk(x)
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#else
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#define DBG(x...)
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#endif
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/* make sure the trap bits are not set */
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pa_psw(task)->r = 0;
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pa_psw(task)->t = 0;
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pa_psw(task)->h = 0;
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pa_psw(task)->l = 0;
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}
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#ifdef CONFIG_64BIT
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/*
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* The following functions are called by ptrace_resume() when
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* enabling or disabling single/block tracing.
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*/
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void user_disable_single_step(struct task_struct *task)
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{
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ptrace_disable(task);
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}
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void user_enable_single_step(struct task_struct *task)
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{
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task->ptrace &= ~PT_BLOCKSTEP;
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task->ptrace |= PT_SINGLESTEP;
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if (pa_psw(task)->n) {
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struct siginfo si;
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/* Nullified, just crank over the queue. */
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task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
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task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
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task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;
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pa_psw(task)->n = 0;
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pa_psw(task)->x = 0;
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pa_psw(task)->y = 0;
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pa_psw(task)->z = 0;
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pa_psw(task)->b = 0;
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ptrace_disable(task);
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/* Don't wake up the task, but let the
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parent know something happened. */
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si.si_code = TRAP_TRACE;
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si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
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si.si_signo = SIGTRAP;
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si.si_errno = 0;
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force_sig_info(SIGTRAP, &si, task);
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/* notify_parent(task, SIGCHLD); */
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return;
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}
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/* Enable recovery counter traps. The recovery counter
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* itself will be set to zero on a task switch. If the
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* task is suspended on a syscall then the syscall return
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* path will overwrite the recovery counter with a suitable
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* value such that it traps once back in user space. We
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* disable interrupts in the tasks PSW here also, to avoid
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* interrupts while the recovery counter is decrementing.
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*/
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pa_psw(task)->r = 1;
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pa_psw(task)->t = 0;
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pa_psw(task)->h = 0;
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pa_psw(task)->l = 0;
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}
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void user_enable_block_step(struct task_struct *task)
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{
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task->ptrace &= ~PT_SINGLESTEP;
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task->ptrace |= PT_BLOCKSTEP;
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/* Enable taken branch trap. */
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pa_psw(task)->r = 0;
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pa_psw(task)->t = 1;
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pa_psw(task)->h = 0;
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pa_psw(task)->l = 0;
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}
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long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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{
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unsigned long tmp;
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long ret = -EIO;
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switch (request) {
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/* Read the word at location addr in the USER area. For ptraced
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processes, the kernel saves all regs on a syscall. */
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case PTRACE_PEEKUSR:
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if ((addr & (sizeof(long)-1)) ||
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(unsigned long) addr >= sizeof(struct pt_regs))
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break;
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tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
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ret = put_user(tmp, (unsigned long *) data);
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break;
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/* Write the word at location addr in the USER area. This will need
|
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to change when the kernel no longer saves all regs on a syscall.
|
||||
FIXME. There is a problem at the moment in that r3-r18 are only
|
||||
saved if the process is ptraced on syscall entry, and even then
|
||||
those values are overwritten by actual register values on syscall
|
||||
exit. */
|
||||
case PTRACE_POKEUSR:
|
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/* Some register values written here may be ignored in
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||||
* entry.S:syscall_restore_rfi; e.g. iaoq is written with
|
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* r31/r31+4, and not with the values in pt_regs.
|
||||
*/
|
||||
if (addr == PT_PSW) {
|
||||
/* Allow writing to Nullify, Divide-step-correction,
|
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* and carry/borrow bits.
|
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* BEWARE, if you set N, and then single step, it won't
|
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* stop on the nullified instruction.
|
||||
*/
|
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data &= USER_PSW_BITS;
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task_regs(child)->gr[0] &= ~USER_PSW_BITS;
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task_regs(child)->gr[0] |= data;
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||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
if ((addr & (sizeof(long)-1)) ||
|
||||
(unsigned long) addr >= sizeof(struct pt_regs))
|
||||
break;
|
||||
if ((addr >= PT_GR1 && addr <= PT_GR31) ||
|
||||
addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
|
||||
(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
|
||||
addr == PT_SAR) {
|
||||
*(unsigned long *) ((char *) task_regs(child) + addr) = data;
|
||||
ret = 0;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
ret = ptrace_request(child, request, addr, data);
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
#ifdef CONFIG_COMPAT
|
||||
|
||||
/* This function is needed to translate 32 bit pt_regs offsets in to
|
||||
* 64 bit pt_regs offsets. For example, a 32 bit gdb under a 64 bit kernel
|
||||
@@ -61,106 +196,25 @@ static long translate_usr_offset(long offset)
|
||||
else
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Called by kernel/ptrace.c when detaching..
|
||||
*
|
||||
* Make sure single step bits etc are not set.
|
||||
*/
|
||||
void ptrace_disable(struct task_struct *child)
|
||||
long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
|
||||
compat_ulong_t addr, compat_ulong_t data)
|
||||
{
|
||||
/* make sure the trap bits are not set */
|
||||
pa_psw(child)->r = 0;
|
||||
pa_psw(child)->t = 0;
|
||||
pa_psw(child)->h = 0;
|
||||
pa_psw(child)->l = 0;
|
||||
}
|
||||
|
||||
long arch_ptrace(struct task_struct *child, long request, long addr, long data)
|
||||
{
|
||||
long ret;
|
||||
#ifdef DEBUG_PTRACE
|
||||
long oaddr=addr, odata=data;
|
||||
#endif
|
||||
compat_uint_t tmp;
|
||||
long ret = -EIO;
|
||||
|
||||
switch (request) {
|
||||
case PTRACE_PEEKTEXT: /* read word at location addr. */
|
||||
case PTRACE_PEEKDATA: {
|
||||
#ifdef CONFIG_64BIT
|
||||
if (__is_compat_task(child)) {
|
||||
int copied;
|
||||
unsigned int tmp;
|
||||
|
||||
addr &= 0xffffffffL;
|
||||
copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
|
||||
ret = -EIO;
|
||||
if (copied != sizeof(tmp))
|
||||
goto out_tsk;
|
||||
ret = put_user(tmp,(unsigned int *) data);
|
||||
DBG("sys_ptrace(PEEK%s, %d, %lx, %lx) returning %ld, data %x\n",
|
||||
request == PTRACE_PEEKTEXT ? "TEXT" : "DATA",
|
||||
pid, oaddr, odata, ret, tmp);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
ret = generic_ptrace_peekdata(child, addr, data);
|
||||
goto out_tsk;
|
||||
}
|
||||
case PTRACE_PEEKUSR:
|
||||
if (addr & (sizeof(compat_uint_t)-1))
|
||||
break;
|
||||
addr = translate_usr_offset(addr);
|
||||
if (addr < 0)
|
||||
break;
|
||||
|
||||
/* when I and D space are separate, this will have to be fixed. */
|
||||
case PTRACE_POKETEXT: /* write the word at location addr. */
|
||||
case PTRACE_POKEDATA:
|
||||
ret = 0;
|
||||
#ifdef CONFIG_64BIT
|
||||
if (__is_compat_task(child)) {
|
||||
unsigned int tmp = (unsigned int)data;
|
||||
DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
|
||||
request == PTRACE_POKETEXT ? "TEXT" : "DATA",
|
||||
pid, oaddr, odata);
|
||||
addr &= 0xffffffffL;
|
||||
if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1) == sizeof(tmp))
|
||||
goto out_tsk;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
|
||||
goto out_tsk;
|
||||
}
|
||||
ret = -EIO;
|
||||
goto out_tsk;
|
||||
|
||||
/* Read the word at location addr in the USER area. For ptraced
|
||||
processes, the kernel saves all regs on a syscall. */
|
||||
case PTRACE_PEEKUSR: {
|
||||
ret = -EIO;
|
||||
#ifdef CONFIG_64BIT
|
||||
if (__is_compat_task(child)) {
|
||||
unsigned int tmp;
|
||||
|
||||
if (addr & (sizeof(int)-1))
|
||||
goto out_tsk;
|
||||
if ((addr = translate_usr_offset(addr)) < 0)
|
||||
goto out_tsk;
|
||||
|
||||
tmp = *(unsigned int *) ((char *) task_regs(child) + addr);
|
||||
ret = put_user(tmp, (unsigned int *) data);
|
||||
DBG("sys_ptrace(PEEKUSR, %d, %lx, %lx) returning %ld, addr %lx, data %x\n",
|
||||
pid, oaddr, odata, ret, addr, tmp);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
unsigned long tmp;
|
||||
|
||||
if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
|
||||
goto out_tsk;
|
||||
tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
|
||||
ret = put_user(tmp, (unsigned long *) data);
|
||||
}
|
||||
goto out_tsk;
|
||||
}
|
||||
tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
|
||||
ret = put_user(tmp, (compat_uint_t *) (unsigned long) data);
|
||||
break;
|
||||
|
||||
/* Write the word at location addr in the USER area. This will need
|
||||
to change when the kernel no longer saves all regs on a syscall.
|
||||
@@ -169,185 +223,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
|
||||
those values are overwritten by actual register values on syscall
|
||||
exit. */
|
||||
case PTRACE_POKEUSR:
|
||||
ret = -EIO;
|
||||
/* Some register values written here may be ignored in
|
||||
* entry.S:syscall_restore_rfi; e.g. iaoq is written with
|
||||
* r31/r31+4, and not with the values in pt_regs.
|
||||
*/
|
||||
/* PT_PSW=0, so this is valid for 32 bit processes under 64
|
||||
* bit kernels.
|
||||
*/
|
||||
if (addr == PT_PSW) {
|
||||
/* PT_PSW=0, so this is valid for 32 bit processes
|
||||
* under 64 bit kernels.
|
||||
*
|
||||
* Allow writing to Nullify, Divide-step-correction,
|
||||
* and carry/borrow bits.
|
||||
* BEWARE, if you set N, and then single step, it won't
|
||||
* stop on the nullified instruction.
|
||||
/* Since PT_PSW==0, it is valid for 32 bit processes
|
||||
* under 64 bit kernels as well.
|
||||
*/
|
||||
DBG("sys_ptrace(POKEUSR, %d, %lx, %lx)\n",
|
||||
pid, oaddr, odata);
|
||||
data &= USER_PSW_BITS;
|
||||
task_regs(child)->gr[0] &= ~USER_PSW_BITS;
|
||||
task_regs(child)->gr[0] |= data;
|
||||
ret = 0;
|
||||
goto out_tsk;
|
||||
}
|
||||
#ifdef CONFIG_64BIT
|
||||
if (__is_compat_task(child)) {
|
||||
if (addr & (sizeof(int)-1))
|
||||
goto out_tsk;
|
||||
if ((addr = translate_usr_offset(addr)) < 0)
|
||||
goto out_tsk;
|
||||
DBG("sys_ptrace(POKEUSR, %d, %lx, %lx) addr %lx\n",
|
||||
pid, oaddr, odata, addr);
|
||||
ret = arch_ptrace(child, request, addr, data);
|
||||
} else {
|
||||
if (addr & (sizeof(compat_uint_t)-1))
|
||||
break;
|
||||
addr = translate_usr_offset(addr);
|
||||
if (addr < 0)
|
||||
break;
|
||||
if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
|
||||
/* Special case, fp regs are 64 bits anyway */
|
||||
*(unsigned int *) ((char *) task_regs(child) + addr) = data;
|
||||
*(__u64 *) ((char *) task_regs(child) + addr) = data;
|
||||
ret = 0;
|
||||
}
|
||||
else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
|
||||
addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4 ||
|
||||
addr == PT_SAR+4) {
|
||||
/* Zero the top 32 bits */
|
||||
*(unsigned int *) ((char *) task_regs(child) + addr - 4) = 0;
|
||||
*(unsigned int *) ((char *) task_regs(child) + addr) = data;
|
||||
*(__u32 *) ((char *) task_regs(child) + addr - 4) = 0;
|
||||
*(__u32 *) ((char *) task_regs(child) + addr) = data;
|
||||
ret = 0;
|
||||
}
|
||||
goto out_tsk;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
|
||||
goto out_tsk;
|
||||
if ((addr >= PT_GR1 && addr <= PT_GR31) ||
|
||||
addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
|
||||
(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
|
||||
addr == PT_SAR) {
|
||||
*(unsigned long *) ((char *) task_regs(child) + addr) = data;
|
||||
ret = 0;
|
||||
}
|
||||
goto out_tsk;
|
||||
}
|
||||
|
||||
case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
|
||||
case PTRACE_CONT:
|
||||
ret = -EIO;
|
||||
DBG("sys_ptrace(%s)\n",
|
||||
request == PTRACE_SYSCALL ? "SYSCALL" : "CONT");
|
||||
if (!valid_signal(data))
|
||||
goto out_tsk;
|
||||
child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
|
||||
if (request == PTRACE_SYSCALL) {
|
||||
set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
|
||||
} else {
|
||||
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
|
||||
}
|
||||
child->exit_code = data;
|
||||
goto out_wake_notrap;
|
||||
|
||||
case PTRACE_KILL:
|
||||
/*
|
||||
* make the child exit. Best I can do is send it a
|
||||
* sigkill. perhaps it should be put in the status
|
||||
* that it wants to exit.
|
||||
*/
|
||||
ret = 0;
|
||||
DBG("sys_ptrace(KILL)\n");
|
||||
if (child->exit_state == EXIT_ZOMBIE) /* already dead */
|
||||
goto out_tsk;
|
||||
child->exit_code = SIGKILL;
|
||||
goto out_wake_notrap;
|
||||
|
||||
case PTRACE_SINGLEBLOCK:
|
||||
DBG("sys_ptrace(SINGLEBLOCK)\n");
|
||||
ret = -EIO;
|
||||
if (!valid_signal(data))
|
||||
goto out_tsk;
|
||||
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
|
||||
child->ptrace &= ~PT_SINGLESTEP;
|
||||
child->ptrace |= PT_BLOCKSTEP;
|
||||
child->exit_code = data;
|
||||
|
||||
/* Enable taken branch trap. */
|
||||
pa_psw(child)->r = 0;
|
||||
pa_psw(child)->t = 1;
|
||||
pa_psw(child)->h = 0;
|
||||
pa_psw(child)->l = 0;
|
||||
goto out_wake;
|
||||
|
||||
case PTRACE_SINGLESTEP:
|
||||
DBG("sys_ptrace(SINGLESTEP)\n");
|
||||
ret = -EIO;
|
||||
if (!valid_signal(data))
|
||||
goto out_tsk;
|
||||
|
||||
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
|
||||
child->ptrace &= ~PT_BLOCKSTEP;
|
||||
child->ptrace |= PT_SINGLESTEP;
|
||||
child->exit_code = data;
|
||||
|
||||
if (pa_psw(child)->n) {
|
||||
struct siginfo si;
|
||||
|
||||
/* Nullified, just crank over the queue. */
|
||||
task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
|
||||
task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
|
||||
task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
|
||||
pa_psw(child)->n = 0;
|
||||
pa_psw(child)->x = 0;
|
||||
pa_psw(child)->y = 0;
|
||||
pa_psw(child)->z = 0;
|
||||
pa_psw(child)->b = 0;
|
||||
ptrace_disable(child);
|
||||
/* Don't wake up the child, but let the
|
||||
parent know something happened. */
|
||||
si.si_code = TRAP_TRACE;
|
||||
si.si_addr = (void __user *) (task_regs(child)->iaoq[0] & ~3);
|
||||
si.si_signo = SIGTRAP;
|
||||
si.si_errno = 0;
|
||||
force_sig_info(SIGTRAP, &si, child);
|
||||
//notify_parent(child, SIGCHLD);
|
||||
//ret = 0;
|
||||
goto out_wake;
|
||||
}
|
||||
|
||||
/* Enable recovery counter traps. The recovery counter
|
||||
* itself will be set to zero on a task switch. If the
|
||||
* task is suspended on a syscall then the syscall return
|
||||
* path will overwrite the recovery counter with a suitable
|
||||
* value such that it traps once back in user space. We
|
||||
* disable interrupts in the childs PSW here also, to avoid
|
||||
* interrupts while the recovery counter is decrementing.
|
||||
*/
|
||||
pa_psw(child)->r = 1;
|
||||
pa_psw(child)->t = 0;
|
||||
pa_psw(child)->h = 0;
|
||||
pa_psw(child)->l = 0;
|
||||
/* give it a chance to run. */
|
||||
goto out_wake;
|
||||
|
||||
case PTRACE_GETEVENTMSG:
|
||||
ret = put_user(child->ptrace_message, (unsigned int __user *) data);
|
||||
goto out_tsk;
|
||||
break;
|
||||
|
||||
default:
|
||||
ret = ptrace_request(child, request, addr, data);
|
||||
goto out_tsk;
|
||||
ret = compat_ptrace_request(child, request, addr, data);
|
||||
break;
|
||||
}
|
||||
|
||||
out_wake_notrap:
|
||||
ptrace_disable(child);
|
||||
out_wake:
|
||||
wake_up_process(child);
|
||||
ret = 0;
|
||||
out_tsk:
|
||||
DBG("arch_ptrace(%ld, %d, %lx, %lx) returning %ld\n",
|
||||
request, pid, oaddr, odata, ret);
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
void syscall_trace(void)
|
||||
{
|
||||
|
@@ -8,12 +8,24 @@
|
||||
*
|
||||
*/
|
||||
|
||||
#include <asm/pdc.h>
|
||||
#include <asm/psw.h>
|
||||
#include <asm/assembly.h>
|
||||
#include <asm/asm-offsets.h>
|
||||
|
||||
#include <linux/linkage.h>
|
||||
|
||||
|
||||
.section .bss
|
||||
|
||||
.export pdc_result
|
||||
.export pdc_result2
|
||||
.align 8
|
||||
pdc_result:
|
||||
.block ASM_PDC_RESULT_SIZE
|
||||
pdc_result2:
|
||||
.block ASM_PDC_RESULT_SIZE
|
||||
|
||||
.export real_stack
|
||||
.export real32_stack
|
||||
.export real64_stack
|
||||
|
@@ -44,6 +44,7 @@
|
||||
#include <asm/pdc_chassis.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/setup.h>
|
||||
#include <asm/unwind.h>
|
||||
|
||||
static char __initdata command_line[COMMAND_LINE_SIZE];
|
||||
|
||||
@@ -123,6 +124,7 @@ void __init setup_arch(char **cmdline_p)
|
||||
#ifdef CONFIG_64BIT
|
||||
extern int parisc_narrow_firmware;
|
||||
#endif
|
||||
unwind_init();
|
||||
|
||||
init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
|
||||
|
||||
@@ -368,6 +370,31 @@ static int __init parisc_init(void)
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
arch_initcall(parisc_init);
|
||||
|
||||
void start_parisc(void)
|
||||
{
|
||||
extern void start_kernel(void);
|
||||
|
||||
int ret, cpunum;
|
||||
struct pdc_coproc_cfg coproc_cfg;
|
||||
|
||||
cpunum = smp_processor_id();
|
||||
|
||||
set_firmware_width_unlocked();
|
||||
|
||||
ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
|
||||
if (ret >= 0 && coproc_cfg.ccr_functional) {
|
||||
mtctl(coproc_cfg.ccr_functional, 10);
|
||||
|
||||
cpu_data[cpunum].fp_rev = coproc_cfg.revision;
|
||||
cpu_data[cpunum].fp_model = coproc_cfg.model;
|
||||
|
||||
asm volatile ("fstd %fr0,8(%sp)");
|
||||
} else {
|
||||
panic("must have an fpu to boot linux");
|
||||
}
|
||||
|
||||
start_kernel();
|
||||
// not reached
|
||||
}
|
||||
|
@@ -87,7 +87,7 @@
|
||||
ENTRY_SAME(setuid)
|
||||
ENTRY_SAME(getuid)
|
||||
ENTRY_COMP(stime) /* 25 */
|
||||
ENTRY_SAME(ptrace)
|
||||
ENTRY_COMP(ptrace)
|
||||
ENTRY_SAME(alarm)
|
||||
/* see stat comment */
|
||||
ENTRY_COMP(newfstat)
|
||||
@@ -407,6 +407,12 @@
|
||||
ENTRY_SAME(timerfd_create)
|
||||
ENTRY_COMP(timerfd_settime)
|
||||
ENTRY_COMP(timerfd_gettime)
|
||||
ENTRY_COMP(signalfd4)
|
||||
ENTRY_SAME(eventfd2) /* 310 */
|
||||
ENTRY_SAME(epoll_create1)
|
||||
ENTRY_SAME(dup3)
|
||||
ENTRY_SAME(pipe2)
|
||||
ENTRY_SAME(inotify_init1)
|
||||
|
||||
/* Nothing yet */
|
||||
|
||||
|
@@ -23,6 +23,7 @@
|
||||
#include <linux/smp.h>
|
||||
#include <linux/profile.h>
|
||||
#include <linux/clocksource.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/io.h>
|
||||
@@ -215,6 +216,24 @@ void __init start_cpu_itimer(void)
|
||||
cpu_data[cpu].it_value = next_tick;
|
||||
}
|
||||
|
||||
struct platform_device rtc_parisc_dev = {
|
||||
.name = "rtc-parisc",
|
||||
.id = -1,
|
||||
};
|
||||
|
||||
static int __init rtc_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = platform_device_register(&rtc_parisc_dev);
|
||||
if (ret < 0)
|
||||
printk(KERN_ERR "unable to register rtc device...\n");
|
||||
|
||||
/* not necessarily an error */
|
||||
return 0;
|
||||
}
|
||||
module_init(rtc_init);
|
||||
|
||||
void __init time_init(void)
|
||||
{
|
||||
static struct pdc_tod tod_data;
|
||||
@@ -245,4 +264,3 @@ void __init time_init(void)
|
||||
xtime.tv_nsec = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
@@ -170,7 +170,7 @@ void unwind_table_remove(struct unwind_table *table)
|
||||
}
|
||||
|
||||
/* Called from setup_arch to import the kernel unwind info */
|
||||
static int unwind_init(void)
|
||||
int unwind_init(void)
|
||||
{
|
||||
long start, stop;
|
||||
register unsigned long gp __asm__ ("r27");
|
||||
@@ -417,5 +417,3 @@ int unwind_to_user(struct unwind_frame_info *info)
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
module_init(unwind_init);
|
||||
|
Reference in New Issue
Block a user