forked from luck/tmp_suning_uos_patched
c06240c7f5
For sparse memory configurations, the vmemmap array behaves terribly and it takes up an inordinate amount of space in the BSS section of the kernel image unconditionally. Just build huge PMDs and look them up just like we do for TLB misses in the vmalloc area. Kernel BSS shrinks by about 2MB. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Bob Picco <bob.picco@oracle.com>
35 lines
930 B
C
35 lines
930 B
C
#ifndef _SPARC64_MM_INIT_H
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#define _SPARC64_MM_INIT_H
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#include <asm/page.h>
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/* Most of the symbols in this file are defined in init.c and
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* marked non-static so that assembler code can get at them.
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*/
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#define MAX_PHYS_ADDRESS (1UL << MAX_PHYS_ADDRESS_BITS)
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extern unsigned long kern_linear_pte_xor[4];
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extern unsigned int sparc64_highest_unlocked_tlb_ent;
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extern unsigned long sparc64_kern_pri_context;
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extern unsigned long sparc64_kern_pri_nuc_bits;
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extern unsigned long sparc64_kern_sec_context;
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void mmu_info(struct seq_file *m);
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struct linux_prom_translation {
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unsigned long virt;
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unsigned long size;
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unsigned long data;
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};
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/* Exported for kernel TLB miss handling in ktlb.S */
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extern struct linux_prom_translation prom_trans[512];
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extern unsigned int prom_trans_ents;
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/* Exported for SMP bootup purposes. */
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extern unsigned long kern_locked_tte_data;
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void prom_world(int enter);
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#endif /* _SPARC64_MM_INIT_H */
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