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cputlb: Count "partial" and "elided" tlb flushes

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Our only statistic so far was "full" tlb flushes, where all mmu_idx
are flushed at the same time.

Now count "partial" tlb flushes where sets of mmu_idx are flushed,
but the set is not maximal.  Account one per mmu_idx flushed, as
that is the unit of work performed.

We don't actually count elided flushes yet, but go ahead and change
the interface presented to the monitor all at once.

Tested-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2018-10-19 14:36:43 -07:00
parent f8144c6c1e
commit e09de0a20d
4 changed files with 30 additions and 10 deletions
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2
include/exec/cputlb.h
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@ -23,6 +23,6 @@
/* cputlb.c */
void tlb_protect_code(ram_addr_t ram_addr);
void tlb_unprotect_code(ram_addr_t ram_addr);
size_t tlb_flush_count(void);
void tlb_flush_counts(size_t *full, size_t *part, size_t *elide);
#endif
#endif