Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

[linux-2.6-omap-h63xx.git] / include / asm-mips / processor.h

diff --git a/include/asm-mips/processor.h b/include/asm-mips/processor.h
index f1980c6c3bccd93c11ff86ee65a7e2cf41a5a872..83936469fe873a7cc3dcb7ae6fca70d491f37674 100644 (file)
--- a/include/asm-mips/processor.h
+++ b/include/asm-mips/processor.h
@@ -12,6 +12,7 @@
 #define _ASM_PROCESSOR_H
 
 #include <linux/config.h>
+#include <linux/cpumask.h>
 #include <linux/threads.h>
 
 #include <asm/cachectl.h>
@@ -70,11 +71,6 @@ extern unsigned int vced_count, vcei_count;
 
 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
@@ -82,18 +78,13 @@ struct mips_fpu_hard_struct {
  * 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,},} \
+       {0,} \
 }
 
 #define NUM_DSP_REGS   6
@@ -103,11 +94,14 @@ 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,},}
 
+#define INIT_CPUMASK { \
+       {0,} \
+}
+
 typedef struct {
        unsigned long seg;
 } mm_segment_t;
@@ -129,7 +123,13 @@ struct thread_struct {
        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;
@@ -143,6 +143,7 @@ struct thread_struct {
 #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;
@@ -154,6 +155,12 @@ struct thread_struct {
 #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 \
@@ -168,6 +175,10 @@ struct thread_struct {
         * saved fpu/fpu emulator stuff \
         */ \
        INIT_FPU, \
+       /* \
+        * fpu affinity state (null if not FPAFF) \
+        */ \
+       FPAFF_INIT \
        /* \
         * saved dsp/dsp emulator stuff \
         */ \
@@ -201,11 +212,11 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long
 
 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()