*/
#include <linux/module.h>
#include <linux/mm.h>
+#include <linux/slab.h>
#include <linux/elfcore.h>
-#include <linux/pm.h>
#include <linux/kallsyms.h>
-#include <linux/kexec.h>
-#include <linux/kdebug.h>
-#include <linux/tick.h>
-#include <linux/reboot.h>
#include <linux/fs.h>
#include <linux/ftrace.h>
-#include <linux/preempt.h>
+#include <linux/hw_breakpoint.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
-#include <asm/pgalloc.h>
#include <asm/system.h>
-#include <asm/ubc.h>
#include <asm/fpu.h>
#include <asm/syscalls.h>
-#include <asm/watchdog.h>
-
-int ubc_usercnt = 0;
-
-#ifdef CONFIG_32BIT
-static void watchdog_trigger_immediate(void)
-{
- sh_wdt_write_cnt(0xFF);
- sh_wdt_write_csr(0xC2);
-}
-
-void machine_restart(char * __unused)
-{
- local_irq_disable();
-
- /* Use watchdog timer to trigger reset */
- watchdog_trigger_immediate();
-
- while (1)
- cpu_sleep();
-}
-#else
-void machine_restart(char * __unused)
-{
- /* SR.BL=1 and invoke address error to let CPU reset (manual reset) */
- asm volatile("ldc %0, sr\n\t"
- "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001));
-}
-#endif
-
-void machine_halt(void)
-{
- local_irq_disable();
-
- while (1)
- cpu_sleep();
-}
-
-void machine_power_off(void)
-{
- if (pm_power_off)
- pm_power_off();
-}
void show_regs(struct pt_regs * regs)
{
printk("PC : %08lx SP : %08lx SR : %08lx ",
regs->pc, regs->regs[15], regs->sr);
#ifdef CONFIG_MMU
- printk("TEA : %08x\n", ctrl_inl(MMU_TEA));
+ printk("TEA : %08x\n", __raw_readl(MMU_TEA));
#else
printk("\n");
#endif
}
EXPORT_SYMBOL(kernel_thread);
+void start_thread(struct pt_regs *regs, unsigned long new_pc,
+ unsigned long new_sp)
+{
+ set_fs(USER_DS);
+
+ regs->pr = 0;
+ regs->sr = SR_FD;
+ regs->pc = new_pc;
+ regs->regs[15] = new_sp;
+
+ free_thread_xstate(current);
+}
+EXPORT_SYMBOL(start_thread);
+
/*
* Free current thread data structures etc..
*/
void exit_thread(void)
{
- if (current->thread.ubc_pc) {
- current->thread.ubc_pc = 0;
- ubc_usercnt -= 1;
- }
}
void flush_thread(void)
{
-#if defined(CONFIG_SH_FPU)
struct task_struct *tsk = current;
+
+ flush_ptrace_hw_breakpoint(tsk);
+
+#if defined(CONFIG_SH_FPU)
/* Forget lazy FPU state */
clear_fpu(tsk, task_pt_regs(tsk));
clear_used_math();
{
struct thread_info *ti = task_thread_info(p);
struct pt_regs *childregs;
+
#if defined(CONFIG_SH_DSP)
struct task_struct *tsk = current;
-#endif
-#if defined(CONFIG_SH_DSP)
if (is_dsp_enabled(tsk)) {
/* We can use the __save_dsp or just copy the struct:
* __save_dsp(p);
p->thread.sp = (unsigned long) childregs;
p->thread.pc = (unsigned long) ret_from_fork;
- p->thread.ubc_pc = 0;
+ memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
return 0;
}
-/* Tracing by user break controller. */
-static void ubc_set_tracing(int asid, unsigned long pc)
-{
-#if defined(CONFIG_CPU_SH4A)
- unsigned long val;
-
- val = (UBC_CBR_ID_INST | UBC_CBR_RW_READ | UBC_CBR_CE);
- val |= (UBC_CBR_AIE | UBC_CBR_AIV_SET(asid));
-
- ctrl_outl(val, UBC_CBR0);
- ctrl_outl(pc, UBC_CAR0);
- ctrl_outl(0x0, UBC_CAMR0);
- ctrl_outl(0x0, UBC_CBCR);
-
- val = (UBC_CRR_RES | UBC_CRR_PCB | UBC_CRR_BIE);
- ctrl_outl(val, UBC_CRR0);
-
- /* Read UBC register that we wrote last, for checking update */
- val = ctrl_inl(UBC_CRR0);
-
-#else /* CONFIG_CPU_SH4A */
- ctrl_outl(pc, UBC_BARA);
-
-#ifdef CONFIG_MMU
- ctrl_outb(asid, UBC_BASRA);
-#endif
-
- ctrl_outl(0, UBC_BAMRA);
-
- if (current_cpu_data.type == CPU_SH7729 ||
- current_cpu_data.type == CPU_SH7710 ||
- current_cpu_data.type == CPU_SH7712 ||
- current_cpu_data.type == CPU_SH7203){
- ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA);
- ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR);
- } else {
- ctrl_outw(BBR_INST | BBR_READ, UBC_BBRA);
- ctrl_outw(BRCR_PCBA, UBC_BRCR);
- }
-#endif /* CONFIG_CPU_SH4A */
-}
-
/*
* switch_to(x,y) should switch tasks from x to y.
*
/* we're going to use this soon, after a few expensive things */
if (next->fpu_counter > 5)
- prefetch(&next_t->fpu.hard);
+ prefetch(next_t->xstate);
#ifdef CONFIG_MMU
/*
: "r" (task_thread_info(next)));
#endif
- /* If no tasks are using the UBC, we're done */
- if (ubc_usercnt == 0)
- /* If no tasks are using the UBC, we're done */;
- else if (next->thread.ubc_pc && next->mm) {
- int asid = 0;
-#ifdef CONFIG_MMU
- asid |= cpu_asid(smp_processor_id(), next->mm);
-#endif
- ubc_set_tracing(asid, next->thread.ubc_pc);
- } else {
-#if defined(CONFIG_CPU_SH4A)
- ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
- ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
-#else
- ctrl_outw(0, UBC_BBRA);
- ctrl_outw(0, UBC_BBRB);
-#endif
- }
-
/*
* If the task has used fpu the last 5 timeslices, just do a full
* restore of the math state immediately to avoid the trap; the
* chances of needing FPU soon are obviously high now
*/
if (next->fpu_counter > 5)
- fpu_state_restore(task_pt_regs(next));
+ __fpu_state_restore();
return prev;
}
return pc;
}
-
-asmlinkage void break_point_trap(void)
-{
- /* Clear tracing. */
-#if defined(CONFIG_CPU_SH4A)
- ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
- ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
-#else
- ctrl_outw(0, UBC_BBRA);
- ctrl_outw(0, UBC_BBRB);
- ctrl_outl(0, UBC_BRCR);
-#endif
- current->thread.ubc_pc = 0;
- ubc_usercnt -= 1;
-
- force_sig(SIGTRAP, current);
-}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff