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changes

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console/console.c:
    fixed bootstrap stack
h/rpb.h:
    ctb_term_type instead of ctb_baud
This commit is contained in:
Miguel Serrano 2005-07-28 12:26:05 -04:00
parent e61899cbbf
commit fa1512e206
2 changed files with 19 additions and 29 deletions
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46
system/alpha/console/console.c
View file

@ -69,6 +69,8 @@
#define PAGE_SIZE (8192) #define PAGE_SIZE (8192)
#define KSTACK_REGION_VA 0x20040000
#define KSEG 0xfffffc0000000000 #define KSEG 0xfffffc0000000000
#define K1BASE 0xfffffc8000000000 #define K1BASE 0xfffffc8000000000
#define KSEG_TO_PHYS(x) (((ulong)x) & ~KSEG) #define KSEG_TO_PHYS(x) (((ulong)x) & ~KSEG)
@ -470,6 +472,7 @@ unixBoot(int argc, char **argv)
/* Region 1 */ /* Region 1 */
second[SECOND(0x20000000) + i] = KPTE(PFN(third_kernel) + i); second[SECOND(0x20000000) + i] = KPTE(PFN(third_kernel) + i);
} }
/* Region 2 */ /* Region 2 */
second[SECOND(0x40000000)] = KPTE(PFN(second)); second[SECOND(0x40000000)] = KPTE(PFN(second));
@ -489,8 +492,9 @@ unixBoot(int argc, char **argv)
#define DATABASE_END 0x20020000 #define DATABASE_END 0x20020000
ulong *dbPage = (ulong*)unix_boot_alloc(1); ulong *dbPage = (ulong*)unix_boot_alloc(1);
bzero(dbPage, PAGE_SIZE);
second[SECOND(DATABASE_BASE)] = KPTE(PFN(dbPage)); second[SECOND(DATABASE_BASE)] = KPTE(PFN(dbPage));
for (i = DATABASE_BASE; i < DATABASE_END ; i += 8096) { for (i = DATABASE_BASE; i < DATABASE_END ; i += PAGE_SIZE) {
ulong *db = (ulong*)unix_boot_alloc(1); ulong *db = (ulong*)unix_boot_alloc(1);
dbPage[THIRD(i)] = KPTE(PFN(db)); dbPage[THIRD(i)] = KPTE(PFN(db));
} }
@ -511,7 +515,7 @@ unixBoot(int argc, char **argv)
/* Set up third_kernel after it's loaded, when we know where it is */ /* Set up third_kernel after it's loaded, when we know where it is */
kern_first_page = (KSEG_TO_PHYS(m5Conf.kernStart)/PAGE_SIZE); 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; bootadr = m5Conf.entryPoint;
printf_lock("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x" printf_lock("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x"
@ -523,35 +527,21 @@ unixBoot(int argc, char **argv)
kernel_end - m5Conf.kernStart ); kernel_end - m5Conf.kernStart );
panic("kernel too big\n"); 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 */ ksp_bottom = (ulong)unix_boot_alloc(1);
for (ptr = m5Conf.kernStart; ptr < kernel_end; ptr += PAGE_SIZE) { ksp_top = ksp_bottom + PAGE_SIZE;
third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
}
/* blow 2 pages of phys mem for guards since it maintains 1-to-1 mapping */ ptr = (ulong) ksp_bottom;
ksp = ksp_top + (3 * PAGE_SIZE); bzero((char *)ptr, PAGE_SIZE);
if (ksp - m5Conf.kernStart > (0x800000*NUM_KERNEL_THIRD)) { dbPage[THIRD(KSTACK_REGION_VA)] = 0; /* Stack Guard Page */
printf_lock("Kernel stack pushd us over 8MB\n"); dbPage[THIRD(KSTACK_REGION_VA + PAGE_SIZE)] = KPTE(PFN(ptr)); /* Kernel Stack Page */
panic("ksp too big\n"); dbPage[THIRD(KSTACK_REGION_VA + 2*PAGE_SIZE)] = 0; /* Stack Guard Page */
}
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);
third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */
ptr += PAGE_SIZE;
third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */
ptr += PAGE_SIZE;
third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
ptr += PAGE_SIZE;
third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */
/* put argv into the bottom of the stack - argv starts at 1 because /* 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]. * 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 */ ksp -= argc * sizeof(char *); /* Make room for argv */
kargv = (char **) ksp; kargv = (char **) ksp;
for (i = 1; i < argc; i++) { /* Copy arguments to stack */ for (i = 1; i < argc; i++) { /* Copy arguments to stack */
@ -563,7 +553,7 @@ unixBoot(int argc, char **argv)
kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */ kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */
ksp -= sizeof(char *); /* point above last arg for no real reason */ ksp -= sizeof(char *); /* point above last arg for no real reason */
free_pfn = PFN(ptr); free_pfn = PFN(kernel_end);
bcopy((char *)&m5_rpb, (char *)rpb, sizeof(struct rpb)); bcopy((char *)&m5_rpb, (char *)rpb, sizeof(struct rpb));
@ -610,7 +600,7 @@ unixBoot(int argc, char **argv)
bcopy((char *)&m5_rpb_percpu, (char *)thisCPU, bcopy((char *)&m5_rpb_percpu, (char *)thisCPU,
sizeof(struct rpb_percpu)); sizeof(struct rpb_percpu));
thisCPU->rpb_pcb.rpb_ksp = ksp; thisCPU->rpb_pcb.rpb_ksp = (KSTACK_REGION_VA + 2*PAGE_SIZE - (ksp_top - ksp));
thisCPU->rpb_pcb.rpb_ptbr = PFN(first); thisCPU->rpb_pcb.rpb_ptbr = PFN(first);
thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout); thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout);
@ -642,7 +632,7 @@ unixBoot(int argc, char **argv)
ctb_tt->ctb_csr = 0; ctb_tt->ctb_csr = 0;
ctb_tt->ctb_tivec = 0x6c0; /* matches tlaser pal code */ ctb_tt->ctb_tivec = 0x6c0; /* matches tlaser pal code */
ctb_tt->ctb_rivec = 0x680; /* matches tlaser pal code */ ctb_tt->ctb_rivec = 0x680; /* matches tlaser pal code */
ctb_tt->ctb_baud = 9600; ctb_tt->ctb_term_type = 2;
ctb_tt->ctb_put_sts = 0; ctb_tt->ctb_put_sts = 0;
ctb_tt->ctb_get_sts = 0; ctb_tt->ctb_get_sts = 0;

2
system/alpha/h/rpb.h
View file

@ -265,7 +265,7 @@ struct ctb_tt {
long ctb_csr; /* 020: CSR Address */ long ctb_csr; /* 020: CSR Address */
long ctb_tivec; /* 028: <63>=tie; interrupt vector */ long ctb_tivec; /* 028: <63>=tie; interrupt vector */
long ctb_rivec; /* 030: <63>=rie; interrupt vector */ long ctb_rivec; /* 030: <63>=rie; interrupt vector */
long ctb_baud; /* 038: baud rate */ long ctb_term_type; /* 038: baud rate */
long ctb_put_sts; /* 040: PUTS callback extended status */ long ctb_put_sts; /* 040: PUTS callback extended status */
long ctb_get_sts; /* 048: GETS callback extended status */ long ctb_get_sts; /* 048: GETS callback extended status */
long ctb_rsvd[1]; /* 050: reserved for console use */ long ctb_rsvd[1]; /* 050: reserved for console use */