90f08e399d
Rework the sparc mmu_gather usage to conform to the new world order :-) Sparc mmu_gather does two things: - tracks vaddrs to unhash - tracks pages to free Split these two things like powerpc has done and keep the vaddrs in per-cpu data structures and flush them on context switch. The remaining bits can then use the generic mmu_gather. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: David Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Tony Luck <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#ifndef _SPARC64_TLBFLUSH_H
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#define _SPARC64_TLBFLUSH_H
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#include <linux/mm.h>
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#include <asm/mmu_context.h>
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/* TSB flush operations. */
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#define TLB_BATCH_NR 192
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struct tlb_batch {
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struct mm_struct *mm;
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unsigned long tlb_nr;
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unsigned long vaddrs[TLB_BATCH_NR];
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};
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extern void flush_tsb_kernel_range(unsigned long start, unsigned long end);
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extern void flush_tsb_user(struct tlb_batch *tb);
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/* TLB flush operations. */
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extern void flush_tlb_pending(void);
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#define flush_tlb_range(vma,start,end) \
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do { (void)(start); flush_tlb_pending(); } while (0)
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#define flush_tlb_page(vma,addr) flush_tlb_pending()
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#define flush_tlb_mm(mm) flush_tlb_pending()
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/* Local cpu only. */
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extern void __flush_tlb_all(void);
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extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
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#ifndef CONFIG_SMP
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#define flush_tlb_kernel_range(start,end) \
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do { flush_tsb_kernel_range(start,end); \
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__flush_tlb_kernel_range(start,end); \
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} while (0)
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#else /* CONFIG_SMP */
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extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
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#define flush_tlb_kernel_range(start, end) \
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do { flush_tsb_kernel_range(start,end); \
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smp_flush_tlb_kernel_range(start, end); \
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} while (0)
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#endif /* ! CONFIG_SMP */
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#endif /* _SPARC64_TLBFLUSH_H */
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