commit 48f1234eb07fb8c62ba5a38277be2c99ff1074b3
parent afe9c1be3a405ae06f8aa1f0d7967cdf8abdd059
Author: Jesus Galan Lopez (yiyus) <yiyu.jgl@gmail.com>
Date: Sun, 12 Sep 2010 23:34:37 +0200
revert mem.h
Diffstat:
| M | src/9vx/a/mem.h | | | 102 | ++++--------------------------------------------------------------------------- |
1 file changed, 5 insertions(+), 97 deletions(-)
diff --git a/src/9vx/a/mem.h b/src/9vx/a/mem.h
@@ -18,109 +18,24 @@
#define BLOCKALIGN 8
#define MAXMACH 128 /* max # cpus system can run */
-#define KSTACK 65536 /* Size of kernel stack */
+#define KSTACK (1024*1024) /* Size of kernel stack */
/*
* Time
*/
-#define HZ (100) /* clock frequency */
+#define HZ (1000) /* clock frequency */
#define MS2HZ (1000/HZ) /* millisec per clock tick */
#define TK2SEC(t) ((t)/HZ) /* ticks to seconds */
/*
- * Address spaces
+ * Address spaces - only user code!
*/
-#define KZERO 0x80000000 /* base of kernel address space */
-#define KTZERO (KZERO+0x100000) /* first address in kernel text - 9load sits below */
-#define VPT (KZERO-VPTSIZE)
-#define VPTSIZE BY2XPG
-#define NVPT (VPTSIZE/BY2WD)
-#define KMAP (VPT-KMAPSIZE)
-#define KMAPSIZE BY2XPG
-#define VMAP (KMAP-VMAPSIZE)
-#define VMAPSIZE (0x10000000-VPTSIZE-KMAPSIZE)
#define UZERO 0 /* base of user address space */
#define UTZERO (UZERO+BY2PG) /* first address in user text */
-#define USTKTOP (0x4000000) /* byte just beyond user stack */
+#define USTKTOP (0x10000000) /* byte just beyond user stack */
#define USTKSIZE (16*1024*1024) /* size of user stack */
#define TSTKTOP (USTKTOP-USTKSIZE) /* end of new stack in sysexec */
-#define TSTKSIZ 100 /* pages in new stack; limits exec args */
-
-/*
- * Fundamental addresses - bottom 64kB saved for return to real mode
- */
-#define CONFADDR (KZERO+0x1200) /* info passed from boot loader */
-#define TMPADDR (KZERO+0x2000) /* used for temporary mappings */
-#define APBOOTSTRAP (KZERO+0x3000) /* AP bootstrap code */
-#define RMUADDR (KZERO+0x7C00) /* real mode Ureg */
-#define RMCODE (KZERO+0x8000) /* copy of first page of KTEXT */
-#define RMBUF (KZERO+0x9000) /* buffer for user space - known to vga */
-#define IDTADDR (KZERO+0x10800) /* idt */
-#define REBOOTADDR (0x11000) /* reboot code - physical address */
-#define CPU0PDB (KZERO+0x12000) /* bootstrap processor PDB */
-#define CPU0PTE (KZERO+0x13000) /* bootstrap processor PTE's for 0-4MB */
-#define CPU0GDT (KZERO+0x14000) /* bootstrap processor GDT */
-#define MACHADDR (KZERO+0x15000) /* as seen by current processor */
-#define CPU0MACH (KZERO+0x16000) /* Mach for bootstrap processor */
-#define MACHSIZE BY2PG
-#define CPU0PTE1 (KZERO+0x17000) /* bootstrap processor PTE's for 4MB-8MB */
-#define CPU0END (CPU0PTE1+BY2PG)
-/*
- * N.B. ramscan knows that CPU0END is the end of reserved data
- * N.B. _startPADDR knows that CPU0PDB is the first reserved page
- * and that there are 6 of them.
- */
-
-/*
- * known x86 segments (in GDT) and their selectors
- */
-#define NULLSEG 0 /* null segment */
-#define KDSEG 1 /* kernel data/stack */
-#define KESEG 2 /* kernel executable */
-#define UDSEG 3 /* user data/stack */
-#define UESEG 4 /* user executable */
-#define TSSSEG 5 /* task segment */
-#define APMCSEG 6 /* APM code segment */
-#define APMCSEG16 7 /* APM 16-bit code segment */
-#define APMDSEG 8 /* APM data segment */
-#define KESEG16 9 /* kernel executable 16-bit */
-#define NGDT 10 /* number of GDT entries required */
-
-#define SELGDT (0<<2) /* selector is in gdt */
-#define SELLDT (1<<2) /* selector is in ldt */
-
-#define SELECTOR(i, t, p) (((i)<<3) | (t) | (p))
-
-#define NULLSEL SELECTOR(NULLSEG, SELGDT, 0)
-#define KDSEL SELECTOR(KDSEG, SELGDT, 0)
-#define KESEL SELECTOR(KESEG, SELGDT, 0)
-#define UESEL SELECTOR(UESEG, SELGDT, 3)
-#define UDSEL SELECTOR(UDSEG, SELGDT, 3)
-#define TSSSEL SELECTOR(TSSSEG, SELGDT, 0)
-#define APMCSEL SELECTOR(APMCSEG, SELGDT, 0)
-#define APMCSEL16 SELECTOR(APMCSEG16, SELGDT, 0)
-#define APMDSEL SELECTOR(APMDSEG, SELGDT, 0)
-/* #define APM40SEL SELECTOR(APM40SEG, SELGDT, 0) */
-
-/*
- * fields in segment descriptors
- */
-#define SEGDATA (0x10<<8) /* data/stack segment */
-#define SEGEXEC (0x18<<8) /* executable segment */
-#define SEGTSS (0x9<<8) /* TSS segment */
-#define SEGCG (0x0C<<8) /* call gate */
-#define SEGIG (0x0E<<8) /* interrupt gate */
-#define SEGTG (0x0F<<8) /* trap gate */
-#define SEGTYPE (0x1F<<8)
-
-#define SEGP (1<<15) /* segment present */
-#define SEGPL(x) ((x)<<13) /* priority level */
-#define SEGB (1<<22) /* granularity 1==4k (for expand-down) */
-#define SEGG (1<<23) /* granularity 1==4k (for other) */
-#define SEGE (1<<10) /* expand down */
-#define SEGW (1<<9) /* writable (for data/stack) */
-#define SEGR (1<<9) /* readable (for code) */
-#define SEGD (1<<22) /* default 1==32bit (for code) */
+#define TSTKSIZ 100
/*
* virtual MMU
@@ -144,12 +59,5 @@
#define PTESIZE (1<<7)
#define PTEGLOBAL (1<<8)
-/*
- * Macros for calculating offsets within the page directory base
- * and page tables.
- */
-#define PDX(va) ((((ulong)(va))>>22) & 0x03FF)
-#define PTX(va) ((((ulong)(va))>>12) & 0x03FF)
-
#define getpgcolor(a) 0
