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Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/asm-offsets.c4
-rw-r--r--arch/mips/kernel/ptrace.c10
-rw-r--r--arch/mips/kernel/signal.c7
-rw-r--r--arch/mips/kernel/traps.c3
4 files changed, 24 insertions, 0 deletions
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index c0b089d4718..222de465db7 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -64,6 +64,9 @@ void output_ptreg_defines(void)
offset("#define PT_R31 ", struct pt_regs, regs[31]);
offset("#define PT_LO ", struct pt_regs, lo);
offset("#define PT_HI ", struct pt_regs, hi);
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ offset("#define PT_ACX ", struct pt_regs, acx);
+#endif
offset("#define PT_EPC ", struct pt_regs, cp0_epc);
offset("#define PT_BVADDR ", struct pt_regs, cp0_badvaddr);
offset("#define PT_STATUS ", struct pt_regs, cp0_status);
@@ -246,6 +249,7 @@ void output_sc_defines(void)
text("/* Linux sigcontext offsets. */");
offset("#define SC_REGS ", struct sigcontext, sc_regs);
offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs);
+ offset("#define SC_ACX ", struct sigcontext, sc_acx);
offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
offset("#define SC_PC ", struct sigcontext, sc_pc);
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 258d74fd0b6..201ae194d1b 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -236,6 +236,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case MMLO:
tmp = regs->lo;
break;
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ case ACX:
+ tmp = regs->acx;
+ break;
+#endif
case FPC_CSR:
tmp = child->thread.fpu.fcr31;
break;
@@ -362,6 +367,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case MMLO:
regs->lo = data;
break;
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ case ACX:
+ regs->acx = data;
+ break;
+#endif
case FPC_CSR:
child->thread.fpu.fcr31 = data;
break;
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index adbfb95e42d..f091786187a 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -89,6 +89,9 @@ int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
for (i = 1; i < 32; i++)
err |= __put_user(regs->regs[i], &sc->sc_regs[i]);
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ err |= __put_user(regs->acx, &sc->sc_acx);
+#endif
err |= __put_user(regs->hi, &sc->sc_mdhi);
err |= __put_user(regs->lo, &sc->sc_mdlo);
if (cpu_has_dsp) {
@@ -132,6 +135,10 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
current_thread_info()->restart_block.fn = do_no_restart_syscall;
err |= __get_user(regs->cp0_epc, &sc->sc_pc);
+
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ err |= __get_user(regs->acx, &sc->sc_acx);
+#endif
err |= __get_user(regs->hi, &sc->sc_mdhi);
err |= __get_user(regs->lo, &sc->sc_mdlo);
if (cpu_has_dsp) {
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 2aa208b99da..18f56a9dbcf 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -229,6 +229,9 @@ void show_regs(struct pt_regs *regs)
printk("\n");
}
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ printk("Acx : %0*lx\n", field, regs->acx);
+#endif
printk("Hi : %0*lx\n", field, regs->hi);
printk("Lo : %0*lx\n", field, regs->lo);