20060303

1 files changed, 157 insertions, 0 deletions

diff --git a/os/rpcg/mem.h b/os/rpcg/mem.h
new file mode 100644
index 00000000..160569cc
--- /dev/null
+++ b/os/rpcg/mem.h
@@ -0,0 +1,157 @@
+/*
+ * Memory and machine-specific definitions.  Used in C and assembler.
+ */
+
+/*
+ * Sizes
+ */
+
+#define	BI2BY		8			/* bits per byte */
+#define BI2WD		32			/* bits per word */
+#define	BY2WD		4			/* bytes per word */
+#define	BY2V		8			/* bytes per double word */
+#define	BY2PG		4096			/* bytes per page */
+#define	WD2PG		(BY2PG/BY2WD)		/* words per page */
+#define	PGSHIFT		12			/* log(BY2PG) */
+#define ROUND(s, sz)	(((s)+(sz-1))&~(sz-1))
+#define PGROUND(s)	ROUND(s, BY2PG)
+#define	CACHELINELOG	4
+#define CACHELINESZ	(1<<CACHELINELOG)
+
+#define	MAXMACH		1			/* max # cpus system can run */
+#define	MACHSIZE	BY2PG
+
+/*
+ * Time
+ */
+#define HZ		100			/* clock frequency */
+#define	MS2HZ		(1000/HZ)		/* millisec per clock tick */
+#define	TK2SEC(t)	((t)/HZ)		/* ticks to seconds */
+#define	MS2TK(t)	((t)/MS2HZ)		/* milliseconds to ticks */
+#define	MHz	1000000
+
+/*
+ * MSR bits
+ */
+
+#define	POW	0x40000	/* enable power mgmt */
+#define	TGPR	0x20000	/* GPR0-3 remapped; 603/603e specific */
+#define	ILE	0x10000	/* interrupts little endian */
+#define	EE	0x08000	/* enable external/decrementer interrupts */
+#define	PR	0x04000	/* =1, user mode */
+#define	FPE	0x02000	/* enable floating point */
+#define	ME	0x01000	/* enable machine check exceptions */
+#define	FE0	0x00800
+#define	SE	0x00400	/* single-step trace */
+#define	BE	0x00200	/* branch trace */
+#define	FE1	0x00100
+#define	MSR_IP	0x00040	/* =0, vector to nnnnn; =1, vector to FFFnnnnn */
+#define	IR	0x00020	/* enable instruction address translation */
+#define	DR	0x00010	/* enable data address translation */
+#define	RI	0x00002	/* exception is recoverable */
+#define	LE	0x00001	/* little endian mode */
+
+#define	KMSR	(ME|FE0|FE1|FPE)
+#define	UMSR	(KMSR|PR|EE|IR|DR)
+
+/*
+ * Magic registers
+ */
+
+#define	MACH		30		/* R30 is m-> */
+#define	USER		29		/* R29 is up-> */
+#define	IOMEMR		28		/* R28 will be iomem-> */
+
+/*
+ * Fundamental addresses
+ */
+
+#define	UREGSIZE	((8+32)*4)
+
+/*
+ * MMU
+ */
+
+/* L1 table entry and Mx_TWC flags */
+#define PTEVALID	(1<<0)
+#define PTEWT		(1<<1)	/* write through */
+#define PTE4K		(0<<2)
+#define PTE512K	(1<<2)
+#define PTE8MB	(3<<2)
+#define PTEG		(1<<4)	/* guarded */
+
+/* L2 table entry and Mx_RPN flags (also PTEVALID) */
+#define PTECI		(1<<1)	/*  cache inhibit */
+#define PTESH		(1<<2)	/* page is shared; ASID ignored */
+#define PTELPS		(1<<3)	/* large page size */
+#define PTEWRITE	0x9F0
+
+/* TLB and MxEPN flag */
+#define	TLBVALID	(1<<9)
+
+/*
+ * Address spaces
+ */
+
+#define	KUSEG	0x00000000
+#define KSEG0	0x20000000
+#define	KSEGM	0xE0000000	/* mask to check which seg */
+
+#define	KZERO	KSEG0			/* base of kernel address space */
+#define	KTZERO	(KZERO+0x3000)	/* first address in kernel text */
+#define	KSTACK	8192	/* Size of kernel stack */
+
+#define	CONFADDR	(KZERO|0x200000)	/* where qboot leaves configuration info */
+
+/*
+ * Exception codes (trap vectors)
+ */
+#define	CRESET	0x01
+#define	CMCHECK 0x02
+#define	CDSI	0x03
+#define	CISI	0x04
+#define	CEI	0x05
+#define	CALIGN	0x06
+#define	CPROG	0x07
+#define	CFPU	0x08
+#define	CDEC	0x09
+#define	CSYSCALL 0x0C
+#define	CTRACE	0x0D
+#define	CFPA	0x0E
+/* rest are power-implementation dependent (8xx) */
+#define	CEMU	0x10
+#define	CIMISS	0x11
+#define	CDMISS	0x12
+#define	CITLBE	0x13
+#define	CDTLBE	0x14
+#define	CDBREAK	0x1C
+#define	CIBREAK	0x1D
+#define	CPBREAK	0x1E
+#define	CDPORT	0x1F
+
+/*
+ * MPC8xx physical addresses
+ */
+
+/* those encouraged by rpx lite */
+#define	PHYSDRAM	0x00000000
+#define	PHYSNVRAM	0xFA000000
+#define	PHYSIMM	0xFA200000
+#define	PHYSBCSR	0xFA400000
+#define	PHYSFLASH	0xFE000000
+
+/* remaining ones are our choice */
+#define	PHYSPCMCIA	0x04000000
+#define	PCMCIALEN	(8*MB)	/* chosen to allow mapping by single TLB entry */
+#define	ISAIO	(KZERO|PHYSPCMCIA)	/* for inb.s */
+
+/*
+ * MPC8xx dual-ported CPM memory physical addresses
+ */
+#define	PHYSDPRAM	(PHYSIMM+0x2000)
+#define	DPLEN1	0x200
+#define	DPLEN2	0x400
+#define	DPLEN3	0x800
+#define	DPBASE	(PHYSDPRAM+DPLEN1)
+
+#define KEEP_ALIVE_KEY 0x55ccaa33	/* clock and rtc register key */