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authorChris Metcalf <cmetcalf@tilera.com>2012-10-11 12:15:45 -0400
committerChris Metcalf <cmetcalf@tilera.com>2012-10-12 14:26:25 -0400
commitb8d7c0968c095d25fded0e2dfea1a16b1fd42911 (patch)
tree23fcb29c3e941adaeece6e4375deedcecd7e305a /ports/ChangeLog.tile
parentd394eb742a3565d7fe7a4b02710a60b5f219ee64 (diff)
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tilegx: add optimized sched_getcpu() using TILE_COORD SPR
We can discover our x,y coordinate in the core mesh with an mfspr instruction, multiply y by the core mesh width, and have the core number without needing to ask the kernel.
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+2012-10-11 Chris Metcalf <cmetcalf@tilera.com>
+
+ * sysdeps/unix/sysv/linux/tile/tilegx/sched_getcpu.c: New file.
+
2012-10-02 Siddhesh Poyarekar <siddhesh@redhat.com>
* sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h: Fix clone