ShaneCCC:
15f05034
Hi Shane,
Thanks, I just tried the tool. Accessing this registers crashes the system because of a hardware exception as shown below. I was able to read memory address 0x0, 0x4 etc, so it seems to be an invalid address or the register is not ready to be read.
root@sanjay-dev-xav:~# ./reg 15f05034
[ 245.111222] CPU1: SError detected, daif=1c0, spsr=0x40c000c5, mpidr=80000001, esr=be000000
[ 245.111231] CPU5: SError detected, daif=1c0, spsr=0x40c000c5, mpidr=80000201, esr=be000000
[ 245.111239] CPU7: SError detected, daif=1c0, spsr=0x40c000c5, mpidr=80000301, esr=be000000
[ 245.111249] CPU3: SError detected, daif=1c0, spsr=0x40c000c5, mpidr=80000101, esr=be000000
[ 245.111255] CPU6: SError detected, daif=1c0, spsr=0x40c000c5, mpidr=80000300, esr=be000000
[ 245.111261] CPU2: SError detected, daif=1c0, spsr=0x40c000c5, mpidr=80000100, esr=be000000
[ 245.111852] **************************************
[ 245.111856] * For more Internal Decode Help
[ 245.111858] * http://nv/cbberr
[ 245.111860] * NVIDIA userID is required to access
[ 245.111862] **************************************
[ 245.111867] CPU:5, Error:CBB-NOC
[ 245.111876] Error Logger : 1
15f05034: 00000000
root@sanjay-dev-xav:~# [ 245.111889] ErrLog0 : 0x80030600
[ 245.111892] Transaction Type : RD - Read, Incrementing
[ 245.111895] Error Code : TMO
[ 245.111898] Error Source : Target NIU
[ 245.111901] Error Description : Target time-out error
[ 245.111905] Packet header Lock : 0
[ 245.111917] CPU:0, Error:CBB-NOC@0x2300000,irq=481
[ 245.111920] Packet header Len1 : 3
[ 245.111923] **************************************
[ 245.111926] * For more Internal Decode Help
[ 245.111932] * http://nv/cbberr
[ 245.111934] * NVIDIA userID is required to access
[ 245.111938] **************************************
[ 245.111940] CPU:0, Error:CBB-NOC
[ 245.111944] Error Logger : 1
[ 245.111954] ErrLog0 : 0x80030600
[ 245.111958] NOC protocol version : version >= 2.7
[ 245.111961] Transaction Type : RD - Read, Incrementing
[ 245.111964] ErrLog1 : 0x352828
[ 245.111967] Error Code : TMO
[ 245.111969] ErrLog2 : 0x0
[ 245.111971] Error Source : Target NIU
[ 245.111974] RouteId : 0x352828
[ 245.111984] Error Description : Target time-out error
[ 245.111986] InitFlow : ccroc_p2ps/I/ccroc_p2ps
[ 245.111989] Packet header Lock : 0
[ 245.111992] Targflow : host1x_p2pm/T/host1x_p2pm
[ 245.111995] Packet header Len1 : 3
[ 245.111997] TargSubRange : 20
[ 245.112000] SeqId : 0
[ 245.112003] ErrLog3 : 0x305034
[ 245.112006] ErrLog4 : 0x0
[ 245.112032] NOC protocol version : version >= 2.7
[ 245.112039] ErrLog1 : 0x352828
[ 245.112045] ErrLog2 : 0x0
[ 245.112052] Address : 0x15f05034 -- /host1x/vi@15c10000 + 0x5034
[ 245.112055] RouteId : 0x352828
[ 245.112059] ErrLog5 : 0xa09f850
[ 245.112062] Non-Modify : 0x1
[ 245.112065] AXI ID : 0x14
[ 245.112068] InitFlow : ccroc_p2ps/I/ccroc_p2ps
[ 245.112071] Master ID : CCPLEX
[ 245.112073] Targflow : host1x_p2pm/T/host1x_p2pm
[ 245.112076] Security Group(GRPSEC): 0x7e
[ 245.112079] TargSubRange : 20
[ 245.112082] Cache : 0x0 -- Non-cacheable/Non-Bufferable)
[ 245.112084] SeqId : 0
[ 245.112088] Protection : 0x2 -- Unprivileged, Non-Secure, Data Access
[ 245.112092] ErrLog3 : 0x305034
[ 245.112094] FALCONSEC : 0x0
[ 245.112100] ErrLog4 : 0x0
[ 245.112103] Virtual Queuing Channel(VQC): 0x0
P.S The 15th line of the in-lined log indicates that the tool read the value 0 from the register, before the exception restarted the system.