Import sources from 2011-03-30 iso image

1 files changed, 195 insertions, 0 deletions

diff --git a/sys/src/9/mtx/mem.h b/sys/src/9/mtx/mem.h
new file mode 100755
index 000000000..05c01ff8a
--- /dev/null
+++ b/sys/src/9/mtx/mem.h
@@ -0,0 +1,195 @@
+/*
+ * 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 vlong */
+#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	BLOCKALIGN	CACHELINESZ
+
+#define	MHz	1000000
+
+#define	BY2PTE		8				/* bytes per pte entry */
+#define	BY2PTEG		64				/* bytes per pte group */
+
+#define	MAXMACH	1				/* max # cpus system can run */
+#define	MACHSIZE	BY2PG
+#define	KSTACK		4096			/* Size of kernel stack */
+
+/*
+ * Time
+ */
+#define	HZ		100			/* clock frequency */
+#define	TK2SEC(t)	((t)/HZ)		/* ticks to seconds */
+
+/*
+ * Standard PPC Special Purpose Registers (OEA and VEA)
+ */
+#define DSISR	18
+#define DAR	19		/* Data Address Register */
+#define DEC	22		/* Decrementer */
+#define SDR1	25
+#define SRR0	26		/* Saved Registers (exception) */
+#define SRR1	27
+#define SPRG0	272		/* Supervisor Private Registers */
+#define SPRG1	273
+#define SPRG2	274
+#define SPRG3	275
+#define ASR	280		/* Address Space Register */
+#define EAR	282		/* External Access Register (optional) */
+#define TBRU	269		/* Time base Upper/Lower (Reading) */
+#define TBRL	268
+#define TBWU	284		/* Time base Upper/Lower (Writing) */
+#define TBWL	285
+#define PVR	287		/* Processor Version */
+#define IABR	1010	/* Instruction Address Breakpoint Register (optional) */
+#define DABR	1013	/* Data Address Breakpoint Register (optional) */
+#define FPECR	1022	/* Floating-Point Exception Cause Register (optional) */
+#define PIR	1023	/* Processor Identification Register (optional) */
+
+#define IBATU(i)	(528+2*(i))	/* Instruction BAT register (upper) */
+#define IBATL(i)	(529+2*(i))	/* Instruction BAT register (lower) */
+#define DBATU(i)	(536+2*(i))	/* Data BAT register (upper) */
+#define DBATL(i)	(537+2*(i))	/* Data BAT register (lower) */
+
+/*
+ * PPC604e-specific Special Purpose Registers (OEA)
+ */
+#define HID0		1008	/* Hardware Implementation Dependant Register 0 */
+#define HID1		1009	/* Hardware Implementation Dependant Register 1 */
+#define PMC1		953		/* Performance Monitor Counter 1 */
+#define PMC2		954		/* Performance Monitor Counter 2 */
+#define PMC3		957		/* Performance Monitor Counter 3 */
+#define PMC4		958		/* Performance Monitor Counter 4 */
+#define MMCR0	952		/* Monitor Control Register 0 */
+#define MMCR1	956		/* Monitor Control Register 0 */
+#define SIA		955		/* Sampled Instruction Address */
+#define SDA		959		/* Sampled Data Address */
+
+#define BIT(i)	(1<<(31-(i)))	/* Silly backwards register bit numbering scheme */
+
+/*
+ * Bit encodings for Machine State Register (MSR)
+ */
+#define MSR_POW		BIT(13)		/* Enable Power Management */
+#define MSR_ILE		BIT(15)		/* Interrupt Little-Endian enable */
+#define MSR_EE		BIT(16)		/* External Interrupt enable */
+#define MSR_PR		BIT(17)		/* Supervisor/User privelege */
+#define MSR_FP		BIT(18)		/* Floating Point enable */
+#define MSR_ME		BIT(19)		/* Machine Check enable */
+#define MSR_FE0		BIT(20)		/* Floating Exception mode 0 */
+#define MSR_SE		BIT(21)		/* Single Step (optional) */
+#define MSR_BE		BIT(22)		/* Branch Trace (optional) */
+#define MSR_FE1		BIT(23)		/* Floating Exception mode 1 */
+#define MSR_IP		BIT(25)		/* Exception prefix 0x000/0xFFF */
+#define MSR_IR		BIT(26)		/* Instruction MMU enable */
+#define MSR_DR		BIT(27)		/* Data MMU enable */
+#define MSR_PM		BIT(29)		/* Performance Monitor marked mode (604e specific) */
+#define MSR_RI		BIT(30)		/* Recoverable Exception */
+#define MSR_LE		BIT(31)		/* Little-Endian enable */
+
+/*
+ * 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	/* optional */
+#define CFPA		0x0E		/* optional */
+
+/* PPC604e-specific: */
+#define CPERF		0x0F		/* performance monitoring */
+#define CIBREAK	0x13
+#define CSMI		0x14
+
+/*
+ * Magic registers
+ */
+
+#define	MACH	30		/* R30 is m-> */
+#define	USER		29		/* R29 is up-> */
+
+
+/*
+ *  virtual MMU
+ */
+#define PTEMAPMEM	(1024*1024)	
+#define PTEPERTAB	(PTEMAPMEM/BY2PG)
+#define SEGMAPSIZE	1984
+#define SSEGMAPSIZE	16
+#define PPN(x)		((x)&~(BY2PG-1))
+
+/*
+ *  First pte word
+ */
+#define	PTE0(v, vsid, h, va)	(((v)<<31)|((vsid)<<7)|((h)<<6)|(((va)>>22)&0x3f))
+
+/*
+ *  Second pte word; WIMG & PP(RW/RO) common to page table and BATs
+ */
+#define	PTE1_W	BIT(25)
+#define	PTE1_I	BIT(26)
+#define	PTE1_M	BIT(27)
+#define	PTE1_G	BIT(28)
+
+#define	PTE1_RW	BIT(30)
+#define	PTE1_RO	BIT(31)
+
+/*
+ *  PTE bits for fault.c.  These belong to the second PTE word.  Validity is
+ *  implied for putmmu(), and we always set PTE0_V.  PTEVALID is used
+ *  here to set cache policy bits on a global basis.
+ */
+#define	PTEVALID		0
+#define	PTEWRITE		PTE1_RW
+#define	PTERONLY	PTE1_RO
+#define	PTEUNCACHED	PTE1_I
+
+/*
+ * Address spaces
+ */
+
+#define	UZERO	0			/* base of user address space */
+#define	UTZERO	(UZERO+BY2PG)		/* first address in user text */
+#define	USTKTOP	(TSTKTOP-TSTKSIZ*BY2PG)	/* byte just beyond user stack */
+#define	TSTKTOP	KZERO	/* top of temporary stack */
+#define	TSTKSIZ 100
+#define	KZERO	0x80000000		/* base of kernel address space */
+#define	KTZERO	(KZERO+0x4000)	/* first address in kernel text */
+#define	USTKSIZE	(4*1024*1024)		/* size of user stack */
+#define	UREGSIZE	((8+32)*4)
+
+#define	PCIMEM0		0xf0000000
+#define	PCISIZE0		0x0e000000
+#define	PCIMEM1		0xc0000000
+#define	PCISIZE1		0x30000000
+#define	IOMEM		0xfe000000
+#define	IOSIZE		0x00800000
+#define	FALCON		0xfef80000
+#define	RAVEN		0xfeff0000
+#define	FLASHA		0xff000000
+#define	FLASHB		0xff800000
+#define	FLASHAorB	0xfff00000
+
+#define isphys(x) (((ulong)x&KZERO)!=0)
+
+#define getpgcolor(a)	0