#define _ASM_PROCESSOR_H
#include <linux/config.h>
+#include <linux/cache.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").
*/
#define NUM_FPU_REGS 32
-typedef __u64 fpureg_t;
+typedef u64 fpureg_t;
struct mips_fpu_hard_struct {
fpureg_t fpr[NUM_FPU_REGS];
MF_FIXADE, 0, 0 \
}
+#ifdef __KERNEL__
+
struct task_struct;
/* Free all resources held by a thread. */
#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