d78d0891d3
Decrease the SECTION_SIZE_BITS --> MAX_PHYSADDR_BITS range a little bit. The cost of going to SPARSEMEM_STATIC becomes 8K of BSS space, and in return we save a pointer dereferences on every page struct lookup. Even better we hit the main kernel image for the base address which is in a hugepage locked TLB entry. Signed-off-by: David S. Miller <davem@davemloft.net>
13 lines
249 B
C
13 lines
249 B
C
#ifndef _SPARC64_SPARSEMEM_H
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#define _SPARC64_SPARSEMEM_H
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#ifdef __KERNEL__
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#define SECTION_SIZE_BITS 31
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#define MAX_PHYSADDR_BITS 41
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#define MAX_PHYSMEM_BITS 41
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#endif /* !(__KERNEL__) */
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#endif /* !(_SPARC64_SPARSEMEM_H) */
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