Commit b0fd4e49 authored by David S. Miller's avatar David S. Miller

[SPARC64]: Kill out-of-date commentary in asm-sparc64/tsb.h

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 30a6ecad
...@@ -37,14 +37,6 @@ ...@@ -37,14 +37,6 @@
* choose to use bit 47 in the tag. Also, since we never map anything * choose to use bit 47 in the tag. Also, since we never map anything
* at page zero in context zero, we use zero as an invalid tag entry. * at page zero in context zero, we use zero as an invalid tag entry.
* When the lock bit is set, this forces a tag comparison failure. * When the lock bit is set, this forces a tag comparison failure.
*
* Currently, we allocate an 8K TSB per-process and we use it for both
* I-TLB and D-TLB misses. Perhaps at some point we'll add code that
* monitors the number of active pages in the process as we get
* major/minor faults, and grow the TSB in response. The only trick
* in implementing that is synchronizing the freeing of the old TSB
* wrt. parallel TSB updates occuring on other processors. On
* possible solution is to use RCU for the freeing of the TSB.
*/ */
#define TSB_TAG_LOCK_BIT 47 #define TSB_TAG_LOCK_BIT 47
......
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