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* Turn off memory descriptor debugging - its served its purpose.

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* Don't get confused when memory regions don't lie on page boundaries -
  remember our page size is typically larger than the firmware's page size.
* Add a function ia64_running_in_simulator() which is intended to detect
  whether the kernel is running in SKI or on real hardware.
This commit is contained in:
Doug Rabson 2001-09-22 19:50:12 +00:00
parent 0d1943c9e3
commit b73ef645ae
1 changed files with 15 additions and 10 deletions
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25
sys/ia64/ia64/machdep.c
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@ -392,8 +392,6 @@ identifycpu(void)
extern char kernel_text[], _end[];
#define DEBUG_MD
void
ia64_init()
{
@ -506,7 +504,6 @@ ia64_init()
* the memory descriptors.
*/
#define DEBUG_MD
#ifdef DEBUG_MD
printf("Memory descriptor count: %d\n", mdcount);
#endif
@ -514,29 +511,31 @@ ia64_init()
phys_avail_cnt = 0;
for (i = 0, mdp = md; i < mdcount; i++,
mdp = NextMemoryDescriptor(mdp, bootinfo.bi_memdesc_size)) {
size_t size;
#ifdef DEBUG_MD
printf("MD %d: type %d pa 0x%lx cnt 0x%lx\n", i,
mdp->Type,
mdp->PhysicalStart,
mdp->NumberOfPages);
#endif
size = mdp->NumberOfPages * 4096;
pfn0 = ia64_btop(round_page(mdp->PhysicalStart));
pfn1 = ia64_btop(trunc_page(mdp->PhysicalStart
+ mdp->NumberOfPages * 4096));
if (pfn1 <= pfn0)
continue;
if (mdp->Type != EfiConventionalMemory) {
resvmem += ia64_btop(size);
resvmem += (pfn1 - pfn0);
continue;
}
totalphysmem += ia64_btop(size);
totalphysmem += (pfn1 - pfn0);
/*
* We have a memory descriptors available for system
* software use. We must determine if this cluster
* holds the kernel.
*/
physmem += ia64_btop(size);
pfn0 = ia64_btop(mdp->PhysicalStart);
pfn1 = pfn0 + ia64_btop(size);
physmem += (pfn1 - pfn0);
if (pfn0 <= kernendpfn && kernstartpfn <= pfn1) {
/*
* Must compute the location of the kernel
@ -706,6 +705,12 @@ ia64_init()
#endif
}
int
ia64_running_in_simulator()
{
return bootinfo.bi_systab == 0;
}
void
bzero(void *buf, size_t len)
{