Uncore Manual
Uncore Performance Monitoring
Packet Matching Reference
194 Reference Number: 329468-002
RspIWb 1101 HOM1 Co,Hi,
Ho
Peer has evicted the data with an in-flight
WbIData[Ptl] message to the home and has not sent
any message to the requestor.
RspS 0001 HOM1 Co,
Hi,Ho
Peer left with line in S-state
RspSWb 1110 HOM1 Co,Hi,
Ho
Peer has sent a WbSData message to the home, has
not sent any message to the requestor and is left
with line in S-state
SnpCode 0001 SNP Ci,
Co,Ho
Snoop Code (get data in F or S state)
- Ivy Bridge-EP microarchitecture supports getting
data in F state
SnpCur 0000 SNP Ci,
Co,Ho
Snoop to get data in I state
SnpData 0010 SNP Ci,
Co,Ho
Snoop Data (get data in E, F or S state)
- Ivy Bridge-EP microarchitecture supports getting
data in E or F state
SnpDataMigratory 1110 SNP Ci,
Co,Ho
Snoop to get data in M or E or F state
SnpInvItoE 1000 SNP Ci,
Co,Ho
Snoop Invalidate to E state. To invalidate peer
caching agent, flushing any M state data to home
SnpInvOwn 0100 SNP Ci,
Co,Ho
Snoop Invalidate Own (get data in E or M state)
- Ivy Bridge-EP microarchitecture supports getting
data in E state
SnpInvXtoI 0101 SNP Snoop Invalidate Writeback M to I state. To
invalidate peer caching agent, flushing any M state
data to home.
WbEData 0110 DRS Hi Writeback data, downgrade to E state
WbEDataPtl 1010 DRS Hi Partial (byte-masked) writeback data, downgrade to
E state
WbIData 0100 DRS Co,Hi Writeback data, downgrade to I state
WbIDataPtl 1000 DRS Co,Hi Partial (byte-masked) writeback data, downgrade to
I state
WbMtoI 1100 HOM0 Co,Hi Write a cache line in M state back to memory and
transition its state to I.
WbMtoE 1101 HOM0 Co,Hi Write a cache line in M state back to memory and
transition its state to E.
WbMtoS 1110 HOM0 Hi Write a cache line in M state back to memory and
transition its state to S.
WbSData 0101 DRS Co,Hi Writeback data, downgrade to S state
WcWr 0001 NCB Co Write combinable write to non-coherent memory
mapped I/O space
WcWrPtl 1101 NCB Co Partial write combinable write to non-coherent
memory mapped I/O space
Name Opc MC
Gen
By?
Desc