Support the MIPS32 / MIPS64 DSP ASE.

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

1 files changed, 22 insertions, 0 deletions

diff --git a/include/asm-mips/processor.h b/include/asm-mips/processor.h
index d6466aa09fb7..f1980c6c3bcc 100644
--- a/include/asm-mips/processor.h
+++ b/include/asm-mips/processor.h
@@ -96,12 +96,26 @@ union mips_fpu_union {
         {{0,},} \
 }
 
+#define NUM_DSP_REGS   6
+
+typedef __u32 dspreg_t;
+
+struct mips_dsp_state {
+        dspreg_t        dspr[NUM_DSP_REGS];
+        unsigned int    dspcontrol;
+        unsigned short  used_dsp;
+};
+
+#define INIT_DSP {{0,},}
+
 typedef struct {
         unsigned long seg;
 } mm_segment_t;
 
 #define ARCH_MIN_TASKALIGN      8
 
+struct mips_abi;
+
 /*
  * If you change thread_struct remember to change the #defines below too!
  */
@@ -117,6 +131,9 @@ struct thread_struct {
         /* Saved fpu/fpu emulator stuff. */
         union mips_fpu_union fpu;
 
+        /* Saved state of the DSP ASE, if available. */
+        struct mips_dsp_state dsp;
+
         /* Other stuff associated with the thread. */
         unsigned long cp0_badvaddr;     /* Last user fault */
         unsigned long cp0_baduaddr;     /* Last kernel fault accessing USEG */
@@ -129,6 +146,7 @@ struct thread_struct {
         unsigned long mflags;
         unsigned long irix_trampoline;  /* Wheee... */
         unsigned long irix_oldctx;
+        struct mips_abi *abi;
 };
 
 #define MF_ABI_MASK     (MF_32BIT_REGS | MF_32BIT_ADDR)
@@ -151,6 +169,10 @@ struct thread_struct {
          */ \
         INIT_FPU, \
         /* \
+         * saved dsp/dsp emulator stuff \
+         */ \
+        INIT_DSP, \
+        /* \
          * Other stuff associated with the process \
          */ \
         0, 0, 0, 0, \