Support the MIPS32 / MIPS64 DSP ASE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 31 insertions, 29 deletions

diff --git a/include/asm-mips/sigcontext.h b/include/asm-mips/sigcontext.h
index f7fbebaa0744..8edabb0be23f 100644
--- a/include/asm-mips/sigcontext.h
+++ b/include/asm-mips/sigcontext.h
@@ -27,14 +27,15 @@ struct sigcontext {
         unsigned int            sc_fpc_csr;
         unsigned int            sc_fpc_eir;     /* Unused */
         unsigned int            sc_used_math;
-        unsigned int            sc_ssflags;     /* Unused */
+        unsigned int            sc_dsp;         /* dsp status, was sc_ssflags */
         unsigned long long      sc_mdhi;
         unsigned long long      sc_mdlo;
-
-        unsigned int            sc_cause;       /* Unused */
-        unsigned int            sc_badvaddr;    /* Unused */
-
-        unsigned long           sc_sigset[4];   /* kernel's sigset_t */
+        unsigned long           sc_hi1;         /* Was sc_cause */
+        unsigned long           sc_lo1;         /* Was sc_badvaddr */
+        unsigned long           sc_hi2;         /* Was sc_sigset[4] */
+        unsigned long           sc_lo2;
+        unsigned long           sc_hi3;
+        unsigned long           sc_lo3;
 };
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
@@ -48,19 +49,19 @@ struct sigcontext {
  * Warning: this structure illdefined with sc_badvaddr being just an unsigned
  * int so it was changed to unsigned long in 2.6.0-test1.  This may break
  * binary compatibility - no prisoners.
+ * DSP ASE in 2.6.12-rc4.  Turn sc_mdhi and sc_mdlo into an array of four
+ * entries, add sc_dsp and sc_reserved for padding.  No prisoners.
  */
 struct sigcontext {
         unsigned long   sc_regs[32];
         unsigned long   sc_fpregs[32];
-        unsigned long   sc_mdhi;
-        unsigned long   sc_mdlo;
+        unsigned long   sc_hi[4];
+        unsigned long   sc_lo[4];
         unsigned long   sc_pc;
-        unsigned long   sc_badvaddr;
-        unsigned int    sc_status;
         unsigned int    sc_fpc_csr;
-        unsigned int    sc_fpc_eir;
         unsigned int    sc_used_math;
-        unsigned int    sc_cause;
+        unsigned int    sc_dsp;
+        unsigned int    sc_reserved;
 };
 
 #ifdef __KERNEL__
@@ -68,23 +69,24 @@ struct sigcontext {
 #include <linux/posix_types.h>
 
 struct sigcontext32 {
-        __u32   sc_regmask;             /* Unused */
-        __u32   sc_status;
-        __u64   sc_pc;
-        __u64   sc_regs[32];
-        __u64   sc_fpregs[32];
-        __u32   sc_ownedfp;             /* Unused */
-        __u32   sc_fpc_csr;
-        __u32   sc_fpc_eir;             /* Unused */
-        __u32   sc_used_math;
-        __u32   sc_ssflags;             /* Unused */
-        __u64   sc_mdhi;
-        __u64   sc_mdlo;
-
-        __u32   sc_cause;               /* Unused */
-        __u32   sc_badvaddr;            /* Unused */
-
-        __u32   sc_sigset[4];           /* kernel's sigset_t */
+        __u32           sc_regmask;     /* Unused */
+        __u32           sc_status;
+        __u64           sc_pc;
+        __u64           sc_regs[32];
+        __u64           sc_fpregs[32];
+        __u32           sc_ownedfp;     /* Unused */
+        __u32           sc_fpc_csr;
+        __u32           sc_fpc_eir;     /* Unused */
+        __u32           sc_used_math;
+        __u32           sc_dsp;         /* dsp status, was sc_ssflags */
+        __u64           sc_mdhi;
+        __u64           sc_mdlo;
+        __u32           sc_hi1;         /* Was sc_cause */
+        __u32           sc_lo1;         /* Was sc_badvaddr */
+        __u32           sc_hi2;         /* Was sc_sigset[4] */
+        __u32           sc_lo2;
+        __u32           sc_hi3;
+        __u32           sc_lo3;
 };
 #endif /* __KERNEL__ */