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Merge zed.eecs.umich.edu:/.automount/fox/y/mserrano/alpha-system

Browse source 
into  zed.eecs.umich.edu:/z/benash/bk/alpha-system

console/console.c:
    Clean up code.
h/rpb.h:
    Update CTB struct.
This commit is contained in:
Benjamin Nash 2005-07-28 13:45:36 -04:00
parent 8bd19cf3ee fa1512e206
commit be14bc0a21
1 changed files with 12 additions and 23 deletions
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35
system/alpha/console/console.c
View file

@ -69,6 +69,8 @@
#define PAGE_SIZE (8192)
#define KSTACK_REGION_VA 0x20040000
#define KSEG 0xfffffc0000000000
#define K1BASE 0xfffffc8000000000
#define KSEG_TO_PHYS(x) (((ulong)x) & ~KSEG)
@ -513,7 +515,7 @@ unixBoot(int argc, char **argv)
/* Set up third_kernel after it's loaded, when we know where it is */
kern_first_page = (KSEG_TO_PHYS(m5Conf.kernStart)/PAGE_SIZE);
kernel_end = ksp_top = ROUNDUP8K(m5Conf.kernEnd);
kernel_end = ROUNDUP8K(m5Conf.kernEnd);
bootadr = m5Conf.entryPoint;
printf_lock("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x"
@ -526,31 +528,18 @@ unixBoot(int argc, char **argv)
panic("kernel too big\n");
}
printf_lock("kstart = 0x%x, kend = 0x%x, kentry = 0x%x, numCPUs = 0x%x\n", m5Conf.kernStart, m5Conf.kernEnd, m5Conf.entryPoint, m5Conf.numCPUs);
/* Map the kernel's pages into the third level of region 2 */
//for (ptr = m5Conf.kernStart; ptr < kernel_end; ptr += PAGE_SIZE) {
// third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
//}
ksp_top = (ulong)unix_boot_alloc(1);
ksp = ksp_top + PAGE_SIZE;
//if (ksp - m5Conf.kernStart > (0x800000*NUM_KERNEL_THIRD)) {
// printf_lock("Kernel stack pushd us over 8MB\n");
// panic("ksp too big\n");
//}
//if (THIRD_XXX((ulong)ksp_top) > NUM_KERNEL_THIRD * 1024) {
// panic("increase NUM_KERNEL_THIRD, and change THIRD_XXX\n");
//}
ptr = (ulong) ksp_top;
bzero((char *)ptr, PAGE_SIZE * 2);
dbPage[THIRD(0x20040000)] = 0; /* Stack Guard Page */
dbPage[THIRD(0x20042000)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */
dbPage[THIRD(0x20046000)] = 0; /* Stack Guard Page */
ksp_bottom = (ulong)unix_boot_alloc(1);
ksp_top = ksp_bottom + PAGE_SIZE;
ptr = (ulong) ksp_bottom;
bzero((char *)ptr, PAGE_SIZE);
dbPage[THIRD(KSTACK_REGION_VA)] = 0; /* Stack Guard Page */
dbPage[THIRD(KSTACK_REGION_VA + PAGE_SIZE)] = KPTE(PFN(ptr)); /* Kernel Stack Page */
dbPage[THIRD(KSTACK_REGION_VA + 2*PAGE_SIZE)] = 0; /* Stack Guard Page */
/* put argv into the bottom of the stack - argv starts at 1 because
* the command thatr got us here (i.e. "unixboot) is in argv[0].
*/
ksp -= 8; /* Back up one longword */
ksp = ksp_top - 8; /* Back up one longword */
ksp -= argc * sizeof(char *); /* Make room for argv */
kargv = (char **) ksp;
for (i = 1; i < argc; i++) { /* Copy arguments to stack */
@ -609,7 +598,7 @@ unixBoot(int argc, char **argv)
bcopy((char *)&m5_rpb_percpu, (char *)thisCPU,
sizeof(struct rpb_percpu));
thisCPU->rpb_pcb.rpb_ksp = (0x20044000 - 0x18);
thisCPU->rpb_pcb.rpb_ksp = (KSTACK_REGION_VA + 2*PAGE_SIZE - (ksp_top - ksp));
thisCPU->rpb_pcb.rpb_ptbr = PFN(first);
thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout);