#define LOW_OBP_ADDRESS _AC(0x00000000f0000000,UL)
#define HI_OBP_ADDRESS _AC(0x0000000100000000,UL)
#define VMALLOC_START _AC(0x0000000100000000,UL)
-#define VMALLOC_END _AC(0x0000010000000000,UL)
-#define VMEMMAP_BASE _AC(0x0000010000000000,UL)
-
-#define vmemmap ((struct page *)VMEMMAP_BASE)
+#define VMEMMAP_BASE VMALLOC_END
/* PMD_SHIFT determines the size of the area a second-level page
* table can map
#ifndef __ASSEMBLY__
+extern unsigned long VMALLOC_END;
+
+#define vmemmap ((struct page *)VMEMMAP_BASE)
+
#include <linux/sched.h>
bool kern_addr_valid(unsigned long addr);
#ifdef CONFIG_SPARSEMEM_VMEMMAP
/* Do not use the TSB for vmemmap. */
- mov (VMEMMAP_BASE >> 40), %g5
- sllx %g5, 40, %g5
+ sethi %hi(VMEMMAP_BASE), %g5
+ ldx [%g5 + %lo(VMEMMAP_BASE)], %g5
cmp %g4,%g5
bgeu,pn %xcc, kvmap_vmemmap
nop
sethi %hi(MODULES_VADDR), %g5
cmp %g4, %g5
blu,pn %xcc, kvmap_dtlb_longpath
- mov (VMALLOC_END >> 40), %g5
- sllx %g5, 40, %g5
+ sethi %hi(VMALLOC_END), %g5
+ ldx [%g5 + %lo(VMALLOC_END)], %g5
cmp %g4, %g5
bgeu,pn %xcc, kvmap_dtlb_longpath
nop
bool kern_addr_valid(unsigned long addr)
{
- unsigned long above = ((long)addr) >> max_phys_bits;
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
- if (above != 0 && above != -1UL)
- return false;
-
- if (addr >= (unsigned long) KERNBASE &&
- addr < (unsigned long)&_end)
- return true;
-
- if (addr >= PAGE_OFFSET) {
+ if ((long)addr < 0L) {
unsigned long pa = __pa(addr);
+ if ((addr >> max_phys_bits) != 0UL)
+ return false;
+
return pfn_valid(pa >> PAGE_SHIFT);
}
+ if (addr >= (unsigned long) KERNBASE &&
+ addr < (unsigned long)&_end)
+ return true;
+
pgd = pgd_offset_k(addr);
if (pgd_none(*pgd))
return 0;
unsigned long PAGE_OFFSET;
EXPORT_SYMBOL(PAGE_OFFSET);
+unsigned long VMALLOC_END = 0x0000010000000000UL;
+EXPORT_SYMBOL(VMALLOC_END);
+
unsigned long sparc64_va_hole_top = 0xfffff80000000000UL;
unsigned long sparc64_va_hole_bottom = 0x0000080000000000UL;
prom_halt();
}
- PAGE_OFFSET = PAGE_OFFSET_BY_BITS(max_phys_bits);
+ PAGE_OFFSET = sparc64_va_hole_top;
+ VMALLOC_END = ((sparc64_va_hole_bottom >> 1) +
+ (sparc64_va_hole_bottom >> 2));
- pr_info("PAGE_OFFSET is 0x%016lx (max_phys_bits == %lu)\n",
+ pr_info("MM: PAGE_OFFSET is 0x%016lx (max_phys_bits == %lu)\n",
PAGE_OFFSET, max_phys_bits);
+ pr_info("MM: VMALLOC [0x%016lx --> 0x%016lx]\n",
+ VMALLOC_START, VMALLOC_END);
+ pr_info("MM: VMEMMAP [0x%016lx --> 0x%016lx]\n",
+ VMEMMAP_BASE, VMEMMAP_BASE << 1);
}
static void __init tsb_phys_patch(void)