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Merged from sys/i386/i386/machdep.c revision 1.425.

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This commit is contained in:
KATO Takenori 2000-12-16 03:25:08 +00:00
parent 00a52ef6ee
commit bf0611e746
2 changed files with 30 additions and 8 deletions
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19
sys/pc98/i386/machdep.c
View File

@ -274,6 +274,7 @@ cpu_startup(dummy)
vm_size_t size = 0;
int firstaddr;
vm_offset_t minaddr;
int physmem_est;
if (boothowto & RB_VERBOSE)
bootverbose++;
@ -342,6 +343,16 @@ again:
valloc(callout, struct callout, ncallout);
valloc(callwheel, struct callout_tailq, callwheelsize);
/*
* Discount the physical memory larger than the size of kernel_map
* to avoid eating up all of KVA space.
*/
if (kernel_map->first_free == NULL) {
printf("Warning: no free entries in kernel_map.\n");
physmem_est = physmem;
} else
physmem_est = min(physmem, kernel_map->max_offset - kernel_map->min_offset);
/*
* The nominal buffer size (and minimum KVA allocation) is BKVASIZE.
* For the first 64MB of ram nominally allocate sufficient buffers to
@ -354,10 +365,10 @@ again:
int factor = 4 * BKVASIZE / PAGE_SIZE;
nbuf = 50;
if (physmem > 1024)
nbuf += min((physmem - 1024) / factor, 16384 / factor);
if (physmem > 16384)
nbuf += (physmem - 16384) * 2 / (factor * 5);
if (physmem_est > 1024)
nbuf += min((physmem_est - 1024) / factor, 16384 / factor);
if (physmem_est > 16384)
nbuf += (physmem_est - 16384) * 2 / (factor * 5);
}
/*

19
sys/pc98/pc98/machdep.c
View File

@ -274,6 +274,7 @@ cpu_startup(dummy)
vm_size_t size = 0;
int firstaddr;
vm_offset_t minaddr;
int physmem_est;
if (boothowto & RB_VERBOSE)
bootverbose++;
@ -342,6 +343,16 @@ again:
valloc(callout, struct callout, ncallout);
valloc(callwheel, struct callout_tailq, callwheelsize);
/*
* Discount the physical memory larger than the size of kernel_map
* to avoid eating up all of KVA space.
*/
if (kernel_map->first_free == NULL) {
printf("Warning: no free entries in kernel_map.\n");
physmem_est = physmem;
} else
physmem_est = min(physmem, kernel_map->max_offset - kernel_map->min_offset);
/*
* The nominal buffer size (and minimum KVA allocation) is BKVASIZE.
* For the first 64MB of ram nominally allocate sufficient buffers to
@ -354,10 +365,10 @@ again:
int factor = 4 * BKVASIZE / PAGE_SIZE;
nbuf = 50;
if (physmem > 1024)
nbuf += min((physmem - 1024) / factor, 16384 / factor);
if (physmem > 16384)
nbuf += (physmem - 16384) * 2 / (factor * 5);
if (physmem_est > 1024)
nbuf += min((physmem_est - 1024) / factor, 16384 / factor);
if (physmem_est > 16384)
nbuf += (physmem_est - 16384) * 2 / (factor * 5);
}
/*