diff options
Diffstat (limited to 'system/alpha')
| -rw-r--r-- | system/alpha/console/console.c | 46 | ||||
| -rw-r--r-- | system/alpha/h/rpb.h | 2 |
2 files changed, 19 insertions, 29 deletions
diff --git a/system/alpha/console/console.c b/system/alpha/console/console.c index 508cd1fc1..af4e367b2 100644 --- a/system/alpha/console/console.c +++ b/system/alpha/console/console.c @@ -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) @@ -470,6 +472,7 @@ unixBoot(int argc, char **argv) /* Region 1 */ second[SECOND(0x20000000) + i] = KPTE(PFN(third_kernel) + i); } + /* Region 2 */ second[SECOND(0x40000000)] = KPTE(PFN(second)); @@ -489,8 +492,9 @@ unixBoot(int argc, char **argv) #define DATABASE_END 0x20020000 ulong *dbPage = (ulong*)unix_boot_alloc(1); + bzero(dbPage, PAGE_SIZE); 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); 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 */ 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" @@ -523,35 +527,21 @@ unixBoot(int argc, char **argv) kernel_end - m5Conf.kernStart ); 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_bottom = (ulong)unix_boot_alloc(1); + ksp_top = ksp_bottom + PAGE_SIZE; - /* blow 2 pages of phys mem for guards since it maintains 1-to-1 mapping */ - ksp = ksp_top + (3 * 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); - 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 */ + 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 */ @@ -563,7 +553,7 @@ unixBoot(int argc, char **argv) kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */ 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)); @@ -610,7 +600,7 @@ unixBoot(int argc, char **argv) bcopy((char *)&m5_rpb_percpu, (char *)thisCPU, 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_logout = KSEG_TO_PHYS(percpu_logout); @@ -642,7 +632,7 @@ unixBoot(int argc, char **argv) ctb_tt->ctb_csr = 0; ctb_tt->ctb_tivec = 0x6c0; /* 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_get_sts = 0; diff --git a/system/alpha/h/rpb.h b/system/alpha/h/rpb.h index 81ed5bb14..cd754af1d 100644 --- a/system/alpha/h/rpb.h +++ b/system/alpha/h/rpb.h @@ -265,7 +265,7 @@ struct ctb_tt { long ctb_csr; /* 020: CSR Address */ long ctb_tivec; /* 028: <63>=tie; 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_get_sts; /* 048: GETS callback extended status */ long ctb_rsvd[1]; /* 050: reserved for console use */ |