#define _ASM_PROCESSOR_H
#include <linux/config.h>
-#include <linux/cache.h>
+#include <linux/cpumask.h>
#include <linux/threads.h>
#include <asm/cachectl.h>
#include <asm/cpu.h>
+#include <asm/cpu-info.h>
#include <asm/mipsregs.h>
#include <asm/prefetch.h>
#include <asm/system.h>
-#ifdef CONFIG_SGI_IP27
-#include <asm/sn/types.h>
-#endif
-
-/*
- * Descriptor for a cache
- */
-struct cache_desc {
- unsigned short linesz; /* Size of line in bytes */
- unsigned short ways; /* Number of ways */
- unsigned short sets; /* Number of lines per set */
- unsigned int waysize; /* Bytes per way */
- unsigned int waybit; /* Bits to select in a cache set */
- unsigned int flags; /* Flags describing cache properties */
-};
-
-/*
- * Flag definitions
- */
-#define MIPS_CACHE_NOT_PRESENT 0x00000001
-#define MIPS_CACHE_VTAG 0x00000002 /* Virtually tagged cache */
-#define MIPS_CACHE_ALIASES 0x00000004 /* Cache could have aliases */
-#define MIPS_CACHE_IC_F_DC 0x00000008 /* Ic can refill from D-cache */
-
-struct cpuinfo_mips {
- unsigned long udelay_val;
- unsigned long asid_cache;
-#if defined(CONFIG_SGI_IP27)
-// cpuid_t p_cpuid; /* PROM assigned cpuid */
- cnodeid_t p_nodeid; /* my node ID in compact-id-space */
- nasid_t p_nasid; /* my node ID in numa-as-id-space */
- unsigned char p_slice; /* Physical position on node board */
-#endif
-#if 0
- unsigned long loops_per_sec;
- unsigned long ipi_count;
- unsigned long irq_attempt[NR_IRQS];
- unsigned long smp_local_irq_count;
- unsigned long prof_multiplier;
- unsigned long prof_counter;
-#endif
-
- /*
- * Capability and feature descriptor structure for MIPS CPU
- */
- unsigned long options;
- unsigned int processor_id;
- unsigned int fpu_id;
- unsigned int cputype;
- int isa_level;
- int tlbsize;
- struct cache_desc icache; /* Primary I-cache */
- struct cache_desc dcache; /* Primary D or combined I/D cache */
- struct cache_desc scache; /* Secondary cache */
- struct cache_desc tcache; /* Tertiary/split secondary cache */
- void *data; /* Additional data */
-} __attribute__((aligned(SMP_CACHE_BYTES)));
-
-extern struct cpuinfo_mips cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
-
-extern void cpu_probe(void);
-extern void cpu_report(void);
-
/*
* Return current * instruction pointer ("program counter").
*/
extern unsigned int vced_count, vcei_count;
-/*
- * Bus types (default is ISA, but people can check others with these..)
- */
-#define MCA_bus 0
-#define MCA_bus__is_a_macro /* for versions in ksyms.c */
-
-#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
PAGE_ALIGN(TASK_SIZE32 / 3) : PAGE_ALIGN(TASK_SIZE / 3))
#endif
-/*
- * Size of io_bitmap in longwords.
- */
-#define IO_BITMAP_SIZE 2048
-
#define NUM_FPU_REGS 32
-typedef u64 fpureg_t;
+typedef __u64 fpureg_t;
struct mips_fpu_hard_struct {
fpureg_t fpr[NUM_FPU_REGS];
{{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_DSP {{0,},}
+
+#define INIT_CPUMASK { \
+ {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!
*/
/* Saved fpu/fpu emulator stuff. */
union mips_fpu_union 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 \
*/ \
MF_FIXADE, 0, 0 \
}
-#ifdef __KERNEL__
-
struct task_struct;
/* Free all resources held by a thread. */
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()
-#endif /* __KERNEL__ */
-
/*
* Return_address is a replacement for __builtin_return_address(count)
* which on certain architectures cannot reasonably be implemented in GCC
git://git.onelab.eu / linux-2.6.git / blobdiff