#ifndef _ASM_PROCESSOR_H
#define _ASM_PROCESSOR_H
-#include <linux/config.h>
+#include <linux/cpumask.h>
#include <linux/threads.h>
#include <asm/cachectl.h>
extern unsigned int vced_count, vcei_count;
-#ifdef CONFIG_MIPS32
+#ifdef CONFIG_32BIT
/*
* User space process size: 2GB. This is hardcoded into a few places,
* so don't change it unless you know what you are doing.
#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
#endif
-#ifdef CONFIG_MIPS64
+#ifdef CONFIG_64BIT
/*
* User space process size: 1TB. This is hardcoded into a few places,
* so don't change it unless you know what you are doing. TASK_SIZE
typedef __u64 fpureg_t;
-struct mips_fpu_hard_struct {
- fpureg_t fpr[NUM_FPU_REGS];
- unsigned int fcr31;
-};
-
/*
* It would be nice to add some more fields for emulator statistics, but there
* are a number of fixed offsets in offset.h and elsewhere that would have to
* the FPU emulator for now. See asm-mips/fpu_emulator.h.
*/
-struct mips_fpu_soft_struct {
+struct mips_fpu_struct {
fpureg_t fpr[NUM_FPU_REGS];
unsigned int fcr31;
};
-union mips_fpu_union {
- struct mips_fpu_hard_struct hard;
- struct mips_fpu_soft_struct soft;
+#define INIT_FPU { \
+ {0,} \
+}
+
+#define NUM_DSP_REGS 6
+
+typedef __u32 dspreg_t;
+
+struct mips_dsp_state {
+ dspreg_t dspr[NUM_DSP_REGS];
+ unsigned int dspcontrol;
};
-#define INIT_FPU { \
- {{0,},} \
+#define INIT_DSP {{0,},}
+
+#define INIT_CPUMASK { \
+ {0,} \
}
typedef struct {
#define ARCH_MIN_TASKALIGN 8
+struct mips_abi;
+
/*
* If you change thread_struct remember to change the #defines below too!
*/
unsigned long cp0_status;
/* Saved fpu/fpu emulator stuff. */
- union mips_fpu_union fpu;
+ struct mips_fpu_struct fpu;
+#ifdef CONFIG_MIPS_MT_FPAFF
+ /* Emulated instruction count */
+ unsigned long emulated_fp;
+ /* Saved per-thread scheduler affinity mask */
+ cpumask_t user_cpus_allowed;
+#endif /* CONFIG_MIPS_MT_FPAFF */
+
+ /* 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 */
#define MF_LOGADE 2 /* Log address errors to syslog */
#define MF_32BIT_REGS 4 /* also implies 16/32 fprs */
#define MF_32BIT_ADDR 8 /* 32-bit address space (o32/n32) */
+#define MF_FPUBOUND 0x10 /* thread bound to FPU-full CPU set */
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)
#define MF_N32 MF_32BIT_ADDR
#define MF_N64 0
+#ifdef CONFIG_MIPS_MT_FPAFF
+#define FPAFF_INIT 0, INIT_CPUMASK,
+#else
+#define FPAFF_INIT
+#endif /* CONFIG_MIPS_MT_FPAFF */
+
#define INIT_THREAD { \
/* \
* saved main processor registers \
* saved fpu/fpu emulator stuff \
*/ \
INIT_FPU, \
+ /* \
+ * fpu affinity state (null if not FPAFF) \
+ */ \
+ FPAFF_INIT \
+ /* \
+ * saved dsp/dsp emulator stuff \
+ */ \
+ INIT_DSP, \
/* \
* Other stuff associated with the process \
*/ \
unsigned long get_wchan(struct task_struct *p);
-#define __PT_REG(reg) ((long)&((struct pt_regs *)0)->reg - sizeof(struct pt_regs))
-#define __KSTK_TOS(tsk) ((unsigned long)(tsk->thread_info) + THREAD_SIZE - 32)
-#define KSTK_EIP(tsk) (*(unsigned long *)(__KSTK_TOS(tsk) + __PT_REG(cp0_epc)))
-#define KSTK_ESP(tsk) (*(unsigned long *)(__KSTK_TOS(tsk) + __PT_REG(regs[29])))
-#define KSTK_STATUS(tsk) (*(unsigned long *)(__KSTK_TOS(tsk) + __PT_REG(cp0_status)))
+#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + THREAD_SIZE - 32)
+#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk) - 1)
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc)
+#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29])
+#define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status)
#define cpu_relax() barrier()