vbatts/grub
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This commit is contained in:
hollisb 2007-02-21 23:27:36 +00:00
parent 4785bfe460
commit 4a6cb94573
1 changed files with 15 additions and 17 deletions
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20
kern/powerpc/ieee1275/init.c
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@ -34,7 +34,7 @@
#include <grub/ieee1275/ofdisk.h>
#include <grub/ieee1275/ieee1275.h>
#define HEAP_SIZE (8<<20) /* 8 MiB */
#define HEAP_LIMIT (4<<20) /* 4 MiB */
extern char _start[];
extern char _end[];
@ -114,29 +114,27 @@ grub_machine_set_prefix (void)
}
/* Claim some available memory in the first /memory node. */
static void grub_claim_heap (unsigned long heapsize)
static void grub_claim_heap (unsigned long heaplimit)
{
unsigned long total = 0;
auto int heap_init (grub_uint64_t addr, grub_uint64_t len);
int heap_init (grub_uint64_t addr, grub_uint64_t len)
{
len -= 1; /* Required for some firmware. */
/* Limit heap to `heapsize'. */
if (total + len > heapsize)
len = heapsize - total;
/* Don't claim anything above `heaplimit'. */
if (addr + len > heaplimit)
len = heaplimit - addr;
if (len)
{
/* Claim and use it. */
if (grub_claimmap (addr, len) < 0)
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
"Failed to claim heap at 0x%llx, len 0x%llx\n",
addr, len);
grub_mm_init_region ((void *) (grub_addr_t) addr, len);
}
total += len;
if (total >= heapsize)
return 1;
return 0;
}
@ -150,7 +148,7 @@ grub_machine_init (void)
int actual;
grub_console_init ();
grub_claim_heap (HEAP_SIZE);
grub_claim_heap (HEAP_LIMIT);
grub_ofdisk_init ();
/* Process commandline. */