Intel 460GX manual Umask Encodings, Event Select

Register Descriptions

23:15 UMASK Encodings

0 0000 0000 - Processor 0 - Monitor transactions originating from Processor 0 0 0000 0010 - Processor 1 - Monitor transactions originating from Processor 1 0 0000 0100 - Processor 2 - Monitor transactions originating from Processor 2 0 0000 0110 - Processor 3 - Monitor transactions originating from Processor 3

0 1000 0000 - All Processors - Monitor transactions originating from all Processors

0 0001 1010 - Configuration Space - Monitor transactions originating from Config Block 1 0000 0000 - All Initiators - Monitor all transactions

14:8 Event Select

Note: In the fields below bit 13 sometimes has an ’R’. This stands for retry. If ’R’ is set to a 1 then the count is the number of occurrences of the event that were retried. If ’R’ is set to a 0, then the count is for non-retried occurrences of the event. For example 110_0000b would be retried Interrupt Acks and 100_0000b is for non-retried Interrupt Acks.

Selects the event to be monitored.

000 0000b Monitoring Disabled.

011 1111b All Clocks.

1R0 0000b Interrupt Ack

1R1 0001b Special Transaction and Defer Reply to Write.

1R0 0010b I/O Read

1R0 0011b I/O Write - Deferred Reply

1R1 0011b I/O Write - Posted.

1R0 0101b Purge TC and reserved and Branch Trace Messages 1R1 0101b Outbound Interrupt or Hard Fail Write Completion 1R0 0110b Mem Read

1R1 0111b Memory Write

110 1000b Check Connection

1R0 1010b Cfg Read

1R0 1011b Cfg Write - Deferred Reply

1R1 1011b Cfg Write - Posted

000 1100b Inbound Interrupt

1R0 1110b Locked Read - In Order

1R1 1110b Locked Read - Delayed

1R1 1111b Mem Write-Line

1R1 0000b Normal Read Completion

1R1 0100b Memory Scrub

1R0 1100b SSBR

1R1 1101b RSBR

000 0001b Snoop events

000 0010b Snoop Stall events caused by 460GX chipset

000 0011b Snoop Stall events caused by processors

000 0100b Snoop Stall events by either CPU’s or GX 000 0101b Hit events from CPU

000 0110b BNR events from GX

000 0111b BNR events from CPU

000 1000b BNR events from GX or CPU

000 1001b BPRI Clocks from GX

000 1010b BPRI Events from GX

000 1011b BPRI ADS’s from GX

001 0001b Speculative reads that are not used because of HITW 001 0010b Speculative reads that are not used because of HITM 001 0011b Speculative reads that are not used because of retry

001 0100b Speculative reads that are not used because read was restarted 001 0101b Speculative reads that were successful

001 0110b Speculative reads that were not done speculatively

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