v68: remove more fluff

diff --git a/Kernel/platform-v68/main.c b/Kernel/platform-v68/main.c
index 51e7a11..4afbb19 100644 (file)
--- a/Kernel/platform-v68/main.c
+++ b/Kernel/platform-v68/main.c
@@ -17,81 +17,19 @@ void do_beep(void)
 /*
  *     MMU initialize
  */
-#if 0
-void pagemap_init(void)
-{
-       /* Allocate the buddy tables and init them */
-//FIXME        buddy_init();
-}
-#endif
 
 void map_init(void)
 {
 }
 
-u_block udata_block[PTABSIZE];
 uaddr_t ramtop;
-uint8_t *membase[PTABSIZE];
 uint8_t need_resched;
-#if 0
-/* Offsets into the buddy map for each level, byte aligned */
-const uint16_t buddy_level[BUDDY_NUMLEVEL] = {
-       0,              /* 256 4K pages */
-       256,            /* 128 8K pages */
-       384,            /* 64 16K pages */
-       448,            /* 32 32K pages */
-       480,            /* 16 64K pages */
-       496,            /* 8 128K pages */
-       504,            /* 4 256K pages */
-       508,            /* 2 512K pages */
-       510,            /* 1 1MB page */
-};
-#endif
-/*
- *     We can do our fork handling in C for once. The only oddity here is
- *     the fixups to run parent first and avoid needless memory thrashing
- */
-int16_t dofork(ptptr p)
-{
-       /* Child and parent udata pointers */
-       struct u_data *uc = &udata_block[p - ptab].u_d;
-       struct u_data *up = udata_ptr;
-       uint32_t *csp = (uint32_t *)(uc + 1);
-       uint32_t *psp = up->u_sp;
-       /* Duplicate the memory maps */
-       /* FIXME 
-       if (pagemap_fork(p))
-               return -1; */
-       /* Duplicate the udata */
-       memcpy(&uc, &up, sizeof(struct u_data));
-       /* Use the child udata for initializing the child */
-       udata_ptr = uc;
-       newproc(p);
-       udata_ptr = up;
-       /* And return as the parent. The child will return via the
-          fork return path */
-       /* FIXME: stack setup needs correcting */
-//FIXME        *--csp = fork_return;
-       uc->u_sp = csp;
-       /* Copy the saved register state over - must match switchin */
-       memcpy(csp - 14, psp - 14, 4 * 14);
-       /* Return as the parent and run it first (backwards to most ports) */
-       p->p_status = P_READY;
-       udata.u_ptab->p_status = P_RUNNING;
-       return p->p_pid;
-}
-
-/* All our binaries are zero address based */
 
 uaddr_t pagemap_base(void)
 {
        return 0x20000UL;
 }
 
-void program_mmu(uint8_t *phys, usize_t top)
-{
-}
-
 uint8_t platform_param(char *p)
 {
        return 0;
@@ -118,3 +56,6 @@ arg_t _memfree(void)
        return -1;
 }
 
+/* Live udata and kernel stack */
+u_block udata_block;
+uint16_t irqstack[128];        /* Used for swapping only */