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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d15f02eb4e
The current L1 cache read event code 0x80082 only counts for thread 0. The event code 0x280030 should be used to count events on thread 0 and 1. The patch fixes the event code for the L1 cache read. The current L1 cache write event code 0x80086 only counts for thread 0. The event code 0x180032 should be used to count events on thread 0 and 1. The patch fixes the event code for the L1 cache write. FYI, the documentation lists three event codes for the L1 cache read event and three event codes for the L1 cache write event. The event description for the event codes is as follows: L1 cache read requests 0x80082 LSU 0 only L1 cache read requests 0x8008A LSU 1 only L1 cache read requests 0x80030 LSU 1 or LSU 0, counter 2 only. L1 cache store requests 0x80086 LSU 0 only L1 cache store requests 0x8008E LSU 1 only L1 cache store requests 0x80032 LSU 0 or LSU 1, counter 1 only. There can only be one request from either LSU 0 or 1 active at a time. Signed-off-by: Carl Love <cel@us.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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