Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied...

[linux-drm-fsl-dcu.git] / arch / sh / kernel / process.c

diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 9d6a438b3eaf7a8e7692e69eab757886c9ee952d..329b3f3051de9d53bb5b58b7418e595d11d74e09 100644 (file)
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -7,7 +7,7 @@
  *
  *  SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
  *                  Copyright (C) 2006 Lineo Solutions Inc. support SH4A UBC
- *                  Copyright (C) 2002 - 2006  Paul Mundt
+ *                  Copyright (C) 2002 - 2007  Paul Mundt
  */
 #include <linux/module.h>
 #include <linux/mm.h>
@@ -15,6 +15,7 @@
 #include <linux/pm.h>
 #include <linux/kallsyms.h>
 #include <linux/kexec.h>
+#include <asm/kdebug.h>
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
 #include <asm/ubc.h>
@@ -250,12 +251,11 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
                childregs->regs[15] = usp;
                ti->addr_limit = USER_DS;
        } else {
-               childregs->regs[15] = (unsigned long)task_stack_page(p) +
-                                                       THREAD_SIZE;
+               childregs->regs[15] = (unsigned long)childregs;
                ti->addr_limit = KERNEL_DS;
        }
 
-        if (clone_flags & CLONE_SETTLS)
+       if (clone_flags & CLONE_SETTLS)
                childregs->gbr = childregs->regs[0];
 
        childregs->regs[0] = 0; /* Set return value for child */
@@ -300,7 +300,8 @@ static void ubc_set_tracing(int asid, unsigned long pc)
        ctrl_outl(0, UBC_BAMRA);
 
        if (current_cpu_data.type == CPU_SH7729 ||
-           current_cpu_data.type == CPU_SH7710) {
+           current_cpu_data.type == CPU_SH7710 ||
+           current_cpu_data.type == CPU_SH7712) {
                ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA);
                ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR);
        } else {
@@ -496,6 +497,10 @@ asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
        /* Rewind */
        regs->pc -= 2;
 
+       if (notify_die(DIE_TRAP, regs, regs->tra & 0xff,
+                      SIGTRAP) == NOTIFY_STOP)
+               return;
+
        force_sig(SIGTRAP, current);
 }
 
@@ -511,6 +516,10 @@ asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
        /* Rewind */
        regs->pc -= 2;
 
+       if (notify_die(DIE_TRAP, regs, TRAPA_BUG_OPCODE & 0xff,
+                      SIGTRAP) == NOTIFY_STOP)
+               return;
+
 #ifdef CONFIG_BUG
        if (__kernel_text_address(instruction_pointer(regs))) {
                u16 insn = *(u16 *)instruction_pointer(regs);