From 10253f80d11818520f2c4d9dbf57f5703c7b52df Mon Sep 17 00:00:00 2001 From: Geoffrey Blake Date: Fri, 19 Oct 2007 16:44:02 -0400 Subject: [PATCH] Fix bug in MDT BITMAP to allow more than 2GB of memory. Signed-off by Ali Saidi --- system/alpha/console/console.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/system/alpha/console/console.c b/system/alpha/console/console.c index e8bc647f3..c8f181985 100644 --- a/system/alpha/console/console.c +++ b/system/alpha/console/console.c @@ -60,7 +60,7 @@ #include #define CONSOLE -#include "alpha_access.h" +#include "access.h" #include "cserve.h" #include "rpb.h" @@ -89,7 +89,6 @@ #define KPTE(x) ((ulong)((((ulong)(x)) << 32) | 0x1101)) #define HWRPB_PAGES 16 -#define MDT_BITMAP_PAGES 4 #define NUM_KERNEL_THIRD (4) @@ -403,10 +402,12 @@ unixBoot(int argc, char **argv) unsigned char *mdt_bitmap; long *lp1, *lp2, sum; int i, cl; - int kern_first_page; - int mem_size = m5Conf.mem_size; + ulong kern_first_page; + ulong mem_size = m5Conf.mem_size; + + ulong mem_pages = mem_size / PAGE_SIZE, cons_pages; + ulong mdt_bitmap_pages = mem_pages / (PAGE_SIZE*8); - int mem_pages = mem_size / PAGE_SIZE, cons_pages; ulong kernel_bytes, ksp, kernel_end, *unix_kernel_stack, bss, ksp_bottom, ksp_top; struct rpb_ctb *rpb_ctb; @@ -443,7 +444,7 @@ unixBoot(int argc, char **argv) rpb = (struct rpb *)unix_boot_alloc(HWRPB_PAGES); - mdt_bitmap = (unsigned char *)unix_boot_alloc(MDT_BITMAP_PAGES); + mdt_bitmap = (unsigned char *)unix_boot_alloc(mdt_bitmap_pages); first = (ulong *)unix_boot_alloc(1); second = (ulong *)unix_boot_alloc(1); third_rpb = (ulong *)unix_boot_alloc(1); @@ -503,13 +504,13 @@ unixBoot(int argc, char **argv) third_rpb[i] = KPTE(PFN(rpb) + i); /* Map the MDT bitmap table */ - for (i = 0; i < MDT_BITMAP_PAGES; i++) { + for (i = 0; i < mdt_bitmap_pages; i++) { third_rpb[HWRPB_PAGES + i] = KPTE(PFN(mdt_bitmap) + i); } /* Protect the PAL pages */ for (i = 1; i < PFN(first); i++) - third_rpb[HWRPB_PAGES + MDT_BITMAP_PAGES + i] = KPTE(i); + third_rpb[HWRPB_PAGES + mdt_bitmap_pages + i] = KPTE(i); /* Set up third_kernel after it's loaded, when we know where it is */ kern_first_page = (KSEG_TO_PHYS(m5Conf.kernStart)/PAGE_SIZE); @@ -678,7 +679,7 @@ unixBoot(int argc, char **argv) rpb_mdt->rpb_checksum = sum; /* XXX should checksum the cluster descriptors */ - bzero((char *)mdt_bitmap, MDT_BITMAP_PAGES * PAGE_SIZE); + bzero((char *)mdt_bitmap, mdt_bitmap_pages * PAGE_SIZE); for (i = 0; i < mem_pages/8; i++) ((unsigned char *)mdt_bitmap)[i] = 0xff; -- 2.30.2