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-rw-r--r--include/asm-mips/ptrace.h4
-rw-r--r--include/asm-mips/sigcontext.h4
-rw-r--r--include/asm-mips/stackframe.h30
3 files changed, 30 insertions, 8 deletions
diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h
index 8a1f2b6f04a..1906938285c 100644
--- a/include/asm-mips/ptrace.h
+++ b/include/asm-mips/ptrace.h
@@ -21,6 +21,7 @@
#define FPC_EIR 70
#define DSP_BASE 71 /* 3 more hi / lo register pairs */
#define DSP_CONTROL 77
+#define ACX 78
/*
* This struct defines the way the registers are stored on the stack during a
@@ -39,6 +40,9 @@ struct pt_regs {
unsigned long cp0_status;
unsigned long hi;
unsigned long lo;
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ unsigned long acx;
+#endif
unsigned long cp0_badvaddr;
unsigned long cp0_cause;
unsigned long cp0_epc;
diff --git a/include/asm-mips/sigcontext.h b/include/asm-mips/sigcontext.h
index 972947474eb..9ce0607d7a4 100644
--- a/include/asm-mips/sigcontext.h
+++ b/include/asm-mips/sigcontext.h
@@ -23,7 +23,7 @@ struct sigcontext {
unsigned long long sc_pc;
unsigned long long sc_regs[32];
unsigned long long sc_fpregs[32];
- unsigned int sc_ownedfp; /* Unused */
+ unsigned int sc_acx; /* Was sc_ownedfp */
unsigned int sc_fpc_csr;
unsigned int sc_fpc_eir; /* Unused */
unsigned int sc_used_math;
@@ -79,7 +79,7 @@ struct sigcontext32 {
__u64 sc_pc;
__u64 sc_regs[32];
__u64 sc_fpregs[32];
- __u32 sc_ownedfp; /* Unused */
+ __u32 sc_acx; /* Only MIPS32; was sc_ownedfp */
__u32 sc_fpc_csr;
__u32 sc_fpc_eir; /* Unused */
__u32 sc_used_math;
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index 1fae5dc5813..7afa1fdf70c 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -29,16 +29,25 @@
.endm
.macro SAVE_TEMP
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ mflhxu v1
+ LONG_S v1, PT_LO(sp)
+ mflhxu v1
+ LONG_S v1, PT_HI(sp)
+ mflhxu v1
+ LONG_S v1, PT_ACX(sp)
+#else
mfhi v1
+ LONG_S v1, PT_HI(sp)
+ mflo v1
+ LONG_S v1, PT_LO(sp)
+#endif
#ifdef CONFIG_32BIT
LONG_S $8, PT_R8(sp)
LONG_S $9, PT_R9(sp)
#endif
- LONG_S v1, PT_HI(sp)
- mflo v1
LONG_S $10, PT_R10(sp)
LONG_S $11, PT_R11(sp)
- LONG_S v1, PT_LO(sp)
LONG_S $12, PT_R12(sp)
LONG_S $13, PT_R13(sp)
LONG_S $14, PT_R14(sp)
@@ -182,16 +191,25 @@
.endm
.macro RESTORE_TEMP
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ LONG_L $24, PT_ACX(sp)
+ mtlhx $24
+ LONG_L $24, PT_HI(sp)
+ mtlhx $24
LONG_L $24, PT_LO(sp)
+ mtlhx $24
+#else
+ LONG_L $24, PT_LO(sp)
+ mtlo $24
+ LONG_L $24, PT_HI(sp)
+ mthi $24
+#endif
#ifdef CONFIG_32BIT
LONG_L $8, PT_R8(sp)
LONG_L $9, PT_R9(sp)
#endif
- mtlo $24
- LONG_L $24, PT_HI(sp)
LONG_L $10, PT_R10(sp)
LONG_L $11, PT_R11(sp)
- mthi $24
LONG_L $12, PT_R12(sp)
LONG_L $13, PT_R13(sp)
LONG_L $14, PT_R14(sp)