From 5aebb4029139c2675b97d1373ef2a379405d7c7c Mon Sep 17 00:00:00 2001 From: Jake Burkholder Date: Sat, 10 Aug 2002 22:14:16 +0000 Subject: Auto size available kernel virtual address space based on phsyical memory size. This avoids blowing out kva in kmeminit() on large memory machines (4 gigs or more). Reviewed by: tmm --- sys/sparc64/include/vmparam.h | 25 +++++++------------------ 1 file changed, 7 insertions(+), 18 deletions(-) (limited to 'sys/sparc64/include/vmparam.h') diff --git a/sys/sparc64/include/vmparam.h b/sys/sparc64/include/vmparam.h index ec080e6c9afa..7b916bc952fa 100644 --- a/sys/sparc64/include/vmparam.h +++ b/sys/sparc64/include/vmparam.h @@ -88,9 +88,9 @@ * that if this moves above the va hole, we will have to deal with sign * extension of virtual addresses. */ -#define VM_MAXUSER_ADDRESS ((vm_offset_t)0x7fe00000000) +#define VM_MAXUSER_ADDRESS (0x7fe00000000UL) -#define VM_MIN_ADDRESS ((vm_offset_t)0) +#define VM_MIN_ADDRESS (0UL) #define VM_MAX_ADDRESS (VM_MAXUSER_ADDRESS) /* @@ -115,19 +115,6 @@ #define VM_KMEM_SIZE_SCALE (3) #endif -/* - * Number of 4 meg pages to use for the kernel tsb. - */ -#ifndef KVA_PAGES -#define KVA_PAGES (1) -#endif - -/* - * Range of kernel virtual addresses. max = min + range. - */ -#define KVA_RANGE \ - ((KVA_PAGES * PAGE_SIZE_4M) << (PAGE_SHIFT - TTE_SHIFT)) - /* * Lowest kernel virtual address, where the kernel is loaded. This is also * arbitrary. We pick a resonably low address, which allows all of kernel @@ -136,12 +123,12 @@ * same as for x86 with default KVA_PAGES... */ #define VM_MIN_KERNEL_ADDRESS (0xc0000000) -#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + KVA_RANGE - PAGE_SIZE) -#define KERNBASE (VM_MIN_KERNEL_ADDRESS) - #define VM_MIN_PROM_ADDRESS (0xf0000000) #define VM_MAX_PROM_ADDRESS (0xffffe000) +#define KERNBASE (VM_MIN_KERNEL_ADDRESS) +#define VM_MAX_KERNEL_ADDRESS (vm_max_kernel_address) + /* * Initial pagein size of beginning of executable file. */ @@ -149,4 +136,6 @@ #define VM_INITIAL_PAGEIN 16 #endif +extern vm_offset_t vm_max_kernel_address; + #endif /* !_MACHINE_VMPARAM_H_ */ -- cgit v1.2.3