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Support the MIPS32 / MIPS64 DSP ASE.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2005-05-31 11:49:19 +00:00
parent 10f650db1b
commit e50c0a8fa6
34 changed files with 876 additions and 139 deletions
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22
include/asm-mips/processor.h
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@ -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)
@ -150,6 +168,10 @@ struct thread_struct {
* saved fpu/fpu emulator stuff \
*/ \
INIT_FPU, \
/* \
* saved dsp/dsp emulator stuff \
*/ \
INIT_DSP, \
/* \
* Other stuff associated with the process \
*/ \