Add json file of T-HEAD C9xx series events.
The event idx (raw value) is summary as following:
event id range | support cpu
0x01 - 0x06 | c906,c910,c920
0x07 | c906
0x08 - 0x0a | c910,c920
0x0b - 0x0f | c906,c910,c920
0x10 - 0x1a | c910,c920
0x1b - 0x1c | c910,c920 (software defined for all >= 0x1b)
0x1d - 0x2a | c906
The event ids are based on the public document of T-HEAD and cover
the c9xx series.
These events are the max that c9xx series support.
Since T-HEAD let manufacturers decide whether events are usable,
the final support of the perf events is determined by the pmu node
of the soc dtb.
Signed-off-by: Inochi Amaoto <[email protected]>
---
Change from v2:
1. add C906 0x07 events to the instruction.json file
2. fix name for events 0x07 and 0x09 in instruction.json
Example:
This pmu node example can be used on sophgo sg2042 platform (c920) with
mainline OpenSBI.
It should also work on T-HEAD th1520.
For the one use C906 core. Only event 0x01 - 0x07, 0xb - 0xf has known
CSR mapping. The other events do not have known CSR mapping in document
until now.
This pmu node needs to be shorten to adopt c906
pmu {
compatible = "riscv,pmu";
riscv,event-to-mhpmcounters =
// event-start event-end a bitmap of all the MHPMCOUNTERx
<0x00006 0x00006 0x00000400>,
<0x00005 0x00005 0x00000800>,
<0x10000 0x10000 0x00004000>,
<0x10001 0x10001 0x00008000>,
<0x10002 0x10002 0x00010000>,
<0x10003 0x10003 0x00020000>,
<0x10008 0x10008 0x00000008>,
<0x10009 0x10009 0x00000010>,
<0x10010 0x10010 0x00040000>,
<0x10011 0x10011 0x00080000>,
<0x10012 0x10012 0x00100000>,
<0x10013 0x10013 0x00200000>,
<0x10019 0x10019 0x00000040>,
<0x10021 0x10021 0x00000020>;
riscv,event-to-mhpmevent =
// event-id event-selector
/* mhpmevent3: L1I_READ_ACCESS */
<0x10008 0x00000000 0x00000001>,
/* mhpmevent4: L1I_READ_MISS */
<0x10009 0x00000000 0x00000002>,
/* mhpmevent5: ITLB_READ_MISS */
<0x10021 0x00000000 0x00000003>,
/* mhpmevent6: DTLB_READ_MISS */
<0x10019 0x00000000 0x00000004>,
/* mhpmevent10: PMU_HW_BRANCH_MISSES */
<0x00006 0x00000000 0x00000008>,
/* mhpmevent11: PMU_HW_BRANCH_INSTRUCTIONS */
<0x00005 0x00000000 0x00000009>,
/* mhpmevent14: L1D_READ_ACCESS */
<0x10000 0x00000000 0x0000000c>,
/* mhpmevent15: L1D_READ_MISS */
<0x10001 0x00000000 0x0000000d>,
/* mhpmevent16: L1D_WRITE_ACCESS */
<0x10002 0x00000000 0x0000000e>,
/* mhpmevent17: L1D_WRITE_MISS */
<0x10003 0x00000000 0x0000000f>,
/* mhpmevent18: LL_READ_ACCESS */
<0x10010 0x00000000 0x00000010>,
/* mhpmevent19: LL_READ_MISS */
<0x10011 0x00000000 0x00000011>,
/* mhpmevent20: LL_WRITE_ACCESS */
<0x10012 0x00000000 0x00000012>,
/* mhpmevent21: LL_WRITE_MISS */
<0x10013 0x00000000 0x00000013>;
riscv,raw-event-to-mhpmcounters =
/* mhpmevent3: L1 ICache Access Counter */
<0x00000000 0x00000001 0xffffffff 0xffffffff 0x00000008>,
/* mhpmevent4: L1 ICache Miss Counter */
<0x00000000 0x00000002 0xffffffff 0xffffffff 0x00000010>,
/* mhpmevent5: I-UTLB Miss Counter */
<0x00000000 0x00000003 0xffffffff 0xffffffff 0x00000020>,
/* mhpmevent6: D-UTLB Miss Counter */
<0x00000000 0x00000004 0xffffffff 0xffffffff 0x00000040>,
/* mhpmevent7: JTLB Miss */
<0x00000000 0x00000005 0xffffffff 0xffffffff 0x00000080>,
/* mhpmevent8: Conditional Branch Mispredict */
<0x00000000 0x00000006 0xffffffff 0xffffffff 0x00000100>,
/* mhpmevent9: Conditional Branch Instruction Counter (reserved for c910)*/
/* <0x00000000 0x00000007 0xffffffff 0xffffffff 0x00000200>, */
/* mhpmevent10: Indirect Branch Mispredict Counter */
<0x00000000 0x00000008 0xffffffff 0xffffffff 0x00000400>,
/* mhpmevent11: Indirect Branch Instruction Counter */
<0x00000000 0x00000009 0xffffffff 0xffffffff 0x00000800>,
/* mhpmevent12: LSU Spec Fail */
<0x00000000 0x0000000a 0xffffffff 0xffffffff 0x00001000>,
/* mhpmevent13: Store Instruction */
<0x00000000 0x0000000b 0xffffffff 0xffffffff 0x00002000>,
/* mhpmevent14: L1 DCache read access Counter */
<0x00000000 0x0000000c 0xffffffff 0xffffffff 0x00004000>,
/* mhpmevent15: L1 DCache read miss Counter */
<0x00000000 0x0000000d 0xffffffff 0xffffffff 0x00008000>,
/* mhpmevent16: L1 DCache write access Counter */
<0x00000000 0x0000000e 0xffffffff 0xffffffff 0x00010000>,
/* mhpmevent17: L1 DCache write access Counter */
<0x00000000 0x0000000f 0xffffffff 0xffffffff 0x00020000>,
/* mhpmevent18: L2 Cache read access Counter */
<0x00000000 0x00000010 0xffffffff 0xffffffff 0x00040000>,
/* mhpmevent19: L2 Cache read miss Counter */
<0x00000000 0x00000011 0xffffffff 0xffffffff 0x00080000>,
/* mhpmevent20: L2 Cache write access Counter */
<0x00000000 0x00000012 0xffffffff 0xffffffff 0x00100000>,
/* mhpmevent21: L2 Cache write miss Counter */
<0x00000000 0x00000013 0xffffffff 0xffffffff 0x00200000>,
/* mhpmevent22: RF Launch Fail */
<0x00000000 0x00000014 0xffffffff 0xffffffff 0x00400000>,
/* mhpmevent23: RF Reg Launch Fail */
<0x00000000 0x00000015 0xffffffff 0xffffffff 0x00800000>,
/* mhpmevent24: RF Instruction */
<0x00000000 0x00000016 0xffffffff 0xffffffff 0x01000000>,
/* mhpmevent25: LSU Cross 4K Stall */
<0x00000000 0x00000017 0xffffffff 0xffffffff 0x02000000>,
/* mhpmevent26: LSU Other Stall */
<0x00000000 0x00000018 0xffffffff 0xffffffff 0x04000000>,
/* mhpmevent27: LSU SQ Discard */
<0x00000000 0x00000019 0xffffffff 0xffffffff 0x08000000>,
/* mhpmevent28: LSU SQ Data Discard */
<0x00000000 0x0000001a 0xffffffff 0xffffffff 0x10000000>;
};
---
tools/perf/pmu-events/arch/riscv/mapfile.csv | 1 +
.../arch/riscv/t-head/c9xx/cache.json | 67 +++++++++++++++++
.../arch/riscv/t-head/c9xx/firmware.json | 68 ++++++++++++++++++
.../arch/riscv/t-head/c9xx/instruction.json | 72 +++++++++++++++++++
.../arch/riscv/t-head/c9xx/microarch.json | 67 +++++++++++++++++
5 files changed, 275 insertions(+)
create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
index c61b3d6ef616..dd1d998a7ad6 100644
--- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
+++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
@@ -15,3 +15,4 @@
#
#MVENDORID-MARCHID-MIMPID,Version,Filename,EventType
0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
+0x5b7-0x0-0x0,v1,t-head/c9xx,core
diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
new file mode 100644
index 000000000000..2c6e9a904a11
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
@@ -0,0 +1,67 @@
+[
+ {
+ "EventName": "L1_ICACHE_ACCESS",
+ "EventCode": "0x000001",
+ "BriefDescription": "L1 instruction cache access"
+ },
+ {
+ "EventName": "L1_ICACHE_MISS",
+ "EventCode": "0x000002",
+ "BriefDescription": "L1 instruction cache miss"
+ },
+ {
+ "EventName": "INST_TLB_MISS",
+ "EventCode": "0x000003",
+ "BriefDescription": "Instruction TLB (I-UTLB) miss"
+ },
+ {
+ "EventName": "DATA_TLB_MISS",
+ "EventCode": "0x000004",
+ "BriefDescription": "Data TLB (D-UTLB) miss"
+ },
+ {
+ "EventName": "JTLB_MISS",
+ "EventCode": "0x000005",
+ "BriefDescription": "JTLB access miss"
+ },
+ {
+ "EventName": "L1_DCACHE_READ_ACCESS",
+ "EventCode": "0x00000c",
+ "BriefDescription": "L1 data cache read access"
+ },
+ {
+ "EventName": "L1_DCACHE_READ_MISS",
+ "EventCode": "0x00000d",
+ "BriefDescription": "L1 data cache read miss"
+ },
+ {
+ "EventName": "L1_DCACHE_WRITE_ACCESS",
+ "EventCode": "0x00000e",
+ "BriefDescription": "L1 data cache write access"
+ },
+ {
+ "EventName": "L1_DCACHE_WRITE_MISS",
+ "EventCode": "0x00000f",
+ "BriefDescription": "L1 data cache write miss"
+ },
+ {
+ "EventName": "L2_CACHE_READ_ACCESS",
+ "EventCode": "0x000010",
+ "BriefDescription": "L2 cache read access"
+ },
+ {
+ "EventName": "L2_CACHE_READ_MISS",
+ "EventCode": "0x000011",
+ "BriefDescription": "L2 cache read miss"
+ },
+ {
+ "EventName": "L2_CACHE_WRITE_ACCESS",
+ "EventCode": "0x000012",
+ "BriefDescription": "L2 cache write access"
+ },
+ {
+ "EventName": "L2_CACHE_WRITE_MISS",
+ "EventCode": "0x000013",
+ "BriefDescription": "L2 cache write miss"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
new file mode 100644
index 000000000000..9b4a032186a7
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
@@ -0,0 +1,68 @@
+[
+ {
+ "ArchStdEvent": "FW_MISALIGNED_LOAD"
+ },
+ {
+ "ArchStdEvent": "FW_MISALIGNED_STORE"
+ },
+ {
+ "ArchStdEvent": "FW_ACCESS_LOAD"
+ },
+ {
+ "ArchStdEvent": "FW_ACCESS_STORE"
+ },
+ {
+ "ArchStdEvent": "FW_ILLEGAL_INSN"
+ },
+ {
+ "ArchStdEvent": "FW_SET_TIMER"
+ },
+ {
+ "ArchStdEvent": "FW_IPI_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_IPI_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_FENCE_I_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_FENCE_I_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
new file mode 100644
index 000000000000..7f1649548177
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
@@ -0,0 +1,72 @@
+[
+ {
+ "EventName": "BR_COND_MIS_PRED",
+ "EventCode": "0x000006",
+ "BriefDescription": "Conditional branch mispredict"
+ },
+ {
+ "EventName": "INST_BR_COND_MIS",
+ "EventCode": "0x000007",
+ "BriefDescription": "Conditional branch instruction"
+ },
+ {
+ "EventName": "BR_INDIRECT_MIS_PRED",
+ "EventCode": "0x000008",
+ "BriefDescription": "Indirect branch mispredict"
+ },
+ {
+ "EventName": "INST_BR_COND_MIS",
+ "EventCode": "0x000009",
+ "BriefDescription": "Indirect branch instruction"
+ },
+ {
+ "EventName": "INST_STORE",
+ "EventCode": "0x00000b",
+ "BriefDescription": "Store instruction retired"
+ },
+ {
+ "EventName": "INST_ALU",
+ "EventCode": "0x00001d",
+ "BriefDescription": "ALU instruction retired"
+ },
+ {
+ "EventName": "INST_LOAD_SAVE",
+ "EventCode": "0x00001e",
+ "BriefDescription": "LOAD/Store instruction retired"
+ },
+ {
+ "EventName": "INST_VECTOR",
+ "EventCode": "0x00001f",
+ "BriefDescription": "Vector instruction retired"
+ },
+ {
+ "EventName": "INST_CSR_ACCESS",
+ "EventCode": "0x000020",
+ "BriefDescription": "CSR access instruction retired"
+ },
+ {
+ "EventName": "INST_SYNC",
+ "EventCode": "0x000021",
+ "BriefDescription": "Sync instruction retired"
+ },
+ {
+ "EventName": "INST_LOAD_SAVE_UNALIGNED",
+ "EventCode": "0x000022",
+ "BriefDescription": "Load/Store unaligned access instruction retired"
+ },
+ {
+ "EventName": "INST_ENV_CALL",
+ "EventCode": "0x000025",
+ "BriefDescription": "Environment call instruction retired"
+ },
+ {
+ "EventName": "INST_LONGJUMP",
+ "EventCode": "0x000026",
+ "BriefDescription": "Long jump instruction retired (jump dist over 8MB)"
+ },
+ {
+ "EventName": "INST_FP",
+ "EventCode": "0x00002a",
+ "BriefDescription": "Float point instruction retired"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
new file mode 100644
index 000000000000..073c1d085021
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
@@ -0,0 +1,67 @@
+[
+ {
+ "EventName": "LSU_SPEC_FAIL",
+ "EventCode": "0x00000a",
+ "BriefDescription": "LSU Spec Fail"
+ },
+ {
+ "EventName": "RF_LAUNCH_FAIL",
+ "EventCode": "0x000014",
+ "BriefDescription": "Register file launch fail"
+ },
+ {
+ "EventName": "RF_REG_LAUNCH",
+ "EventCode": "0x000015",
+ "BriefDescription": "Register file reg launch"
+ },
+ {
+ "EventName": "RF_INSTRUCTION",
+ "EventCode": "0x000016",
+ "BriefDescription": "Register file instruction"
+ },
+ {
+ "EventName": "LSU_STALL_CROSS_4K",
+ "EventCode": "0x000017",
+ "BriefDescription": "LSU stall with cross 4K access"
+ },
+ {
+ "EventName": "LSU_STALL_OTHER",
+ "EventCode": "0x000018",
+ "BriefDescription": "LSU stall with other events"
+ },
+ {
+ "EventName": "LSU_SQ_DISCARD",
+ "EventCode": "0x000019",
+ "BriefDescription": "LSU SQ discard"
+ },
+ {
+ "EventName": "LSU_SQ_DISCARD_DATA",
+ "EventCode": "0x00001a",
+ "BriefDescription": "LSU SQ data discard"
+ },
+ {
+ "EventName": "INT_NUMBER",
+ "EventCode": "0x000023",
+ "BriefDescription": "Interrupt number respond"
+ },
+ {
+ "EventName": "INT_OFF_CYCLE",
+ "EventCode": "0x000024",
+ "BriefDescription": "Off cycle before interrupt arbitrating"
+ },
+ {
+ "EventName": "STALLED_CYCLE_IFU",
+ "EventCode": "0x000027",
+ "BriefDescription": "Stall cycles of the instruction fetch unit"
+ },
+ {
+ "EventName": "STALLED_CYCLE_IDU",
+ "EventCode": "0x000028",
+ "BriefDescription": "Stall cycles of the instruction decoding unit and next-level pipeline unit"
+ },
+ {
+ "EventName": "STALLED_CYCLE_SYNC",
+ "EventCode": "0x000029",
+ "BriefDescription": "Stalled cycle for sync instructions (FENCE/FENCE.i/SFENCE/SYNC...)"
+ }
+]
--
2.40.1
Hello Inochi Amaoto!
Tested your latest patch on LicheeRV C906:
linux $ git describe --tags
v6.4-rc2-1-g85a420ada3a8
opensbi $ git describe --tags
v1.2-119-gdc1c7db
stat_all_pmu.sh - PASSED
Perf stat gives something:
perf stat -e data_tlb_miss,inst_tlb_miss,jtlb_miss,l1_dcache_read_acc
ess,l1_dcache_read_miss,l1_dcache_write_access,l1_dcache_write_miss,l1_
icache_ac
cess,l1_icache_miss -- sleep 1
Performance counter stats for 'sleep 1':
9082 data_tlb_miss
5604 inst_tlb_miss
1790 jtlb_miss
130207 l1_dcache_read_access
3353 l1_dcache_read_miss
80454 l1_dcache_write_access
633 l1_dcache_write_miss
639820 l1_icache_access
14660 l1_icache_miss
1.009768750 seconds time elapsed
0.000000000 seconds user
0.010388000 seconds sys
perf record hangs
licheerv # perf record
[ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
[perf:117]
[ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
[perf:117]
[ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
[perf:117]
[ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
[perf:117]
But that's not related to your patch anyway.
I am strongly against using "c9xx" wildcard, i would prefer declaring
them separate (especially taking in mind that c920 is c910 with vector
- AFAIK), but that's up to Arnaldo to decide.
Anyway:
Tested-by: Nikita Shubin <[email protected]>
On Wed, 2023-05-17 at 15:12 +0800, Inochi Amaoto wrote:
> Add json file of T-HEAD C9xx series events.
>
> The event idx (raw value) is summary as following:
>
> event id range | support cpu
> 0x01 - 0x06 | c906,c910,c920
> 0x07 | c906
> 0x08 - 0x0a | c910,c920
> 0x0b - 0x0f | c906,c910,c920
> 0x10 - 0x1a | c910,c920
> 0x1b - 0x1c | c910,c920 (software defined for all >= 0x1b)
> 0x1d - 0x2a | c906
>
> The event ids are based on the public document of T-HEAD and cover
> the c9xx series.
>
> These events are the max that c9xx series support.
> Since T-HEAD let manufacturers decide whether events are usable,
> the final support of the perf events is determined by the pmu node
> of the soc dtb.
>
> Signed-off-by: Inochi Amaoto <[email protected]>
> ---
> Change from v2:
> 1. add C906 0x07 events to the instruction.json file
> 2. fix name for events 0x07 and 0x09 in instruction.json
>
> Example:
>
> This pmu node example can be used on sophgo sg2042 platform (c920)
> with
> mainline OpenSBI.
> It should also work on T-HEAD th1520.
>
> For the one use C906 core. Only event 0x01 - 0x07, 0xb - 0xf has
> known
> CSR mapping. The other events do not have known CSR mapping in
> document
> until now.
> This pmu node needs to be shorten to adopt c906
>
> pmu {
> compatible = "riscv,pmu";
> riscv,event-to-mhpmcounters =
> // event-start event-end a bitmap of all the
> MHPMCOUNTERx
> <0x00006 0x00006 0x00000400>,
> <0x00005 0x00005 0x00000800>,
> <0x10000 0x10000 0x00004000>,
> <0x10001 0x10001 0x00008000>,
> <0x10002 0x10002 0x00010000>,
> <0x10003 0x10003 0x00020000>,
> <0x10008 0x10008 0x00000008>,
> <0x10009 0x10009 0x00000010>,
> <0x10010 0x10010 0x00040000>,
> <0x10011 0x10011 0x00080000>,
> <0x10012 0x10012 0x00100000>,
> <0x10013 0x10013 0x00200000>,
> <0x10019 0x10019 0x00000040>,
> <0x10021 0x10021 0x00000020>;
> riscv,event-to-mhpmevent =
> // event-id event-selector
> /* mhpmevent3: L1I_READ_ACCESS */
> <0x10008 0x00000000 0x00000001>,
> /* mhpmevent4: L1I_READ_MISS */
> <0x10009 0x00000000 0x00000002>,
> /* mhpmevent5: ITLB_READ_MISS */
> <0x10021 0x00000000 0x00000003>,
> /* mhpmevent6: DTLB_READ_MISS */
> <0x10019 0x00000000 0x00000004>,
> /* mhpmevent10: PMU_HW_BRANCH_MISSES */
> <0x00006 0x00000000 0x00000008>,
> /* mhpmevent11: PMU_HW_BRANCH_INSTRUCTIONS */
> <0x00005 0x00000000 0x00000009>,
> /* mhpmevent14: L1D_READ_ACCESS */
> <0x10000 0x00000000 0x0000000c>,
> /* mhpmevent15: L1D_READ_MISS */
> <0x10001 0x00000000 0x0000000d>,
> /* mhpmevent16: L1D_WRITE_ACCESS */
> <0x10002 0x00000000 0x0000000e>,
> /* mhpmevent17: L1D_WRITE_MISS */
> <0x10003 0x00000000 0x0000000f>,
> /* mhpmevent18: LL_READ_ACCESS */
> <0x10010 0x00000000 0x00000010>,
> /* mhpmevent19: LL_READ_MISS */
> <0x10011 0x00000000 0x00000011>,
> /* mhpmevent20: LL_WRITE_ACCESS */
> <0x10012 0x00000000 0x00000012>,
> /* mhpmevent21: LL_WRITE_MISS */
> <0x10013 0x00000000 0x00000013>;
> riscv,raw-event-to-mhpmcounters =
> /* mhpmevent3: L1 ICache Access Counter */
> <0x00000000 0x00000001 0xffffffff 0xffffffff
> 0x00000008>,
> /* mhpmevent4: L1 ICache Miss Counter */
> <0x00000000 0x00000002 0xffffffff 0xffffffff
> 0x00000010>,
> /* mhpmevent5: I-UTLB Miss Counter */
> <0x00000000 0x00000003 0xffffffff 0xffffffff
> 0x00000020>,
> /* mhpmevent6: D-UTLB Miss Counter */
> <0x00000000 0x00000004 0xffffffff 0xffffffff
> 0x00000040>,
> /* mhpmevent7: JTLB Miss */
> <0x00000000 0x00000005 0xffffffff 0xffffffff
> 0x00000080>,
> /* mhpmevent8: Conditional Branch Mispredict */
> <0x00000000 0x00000006 0xffffffff 0xffffffff
> 0x00000100>,
> /* mhpmevent9: Conditional Branch Instruction Counter
> (reserved for c910)*/
> /* <0x00000000 0x00000007 0xffffffff 0xffffffff
> 0x00000200>, */
> /* mhpmevent10: Indirect Branch Mispredict Counter */
> <0x00000000 0x00000008 0xffffffff 0xffffffff
> 0x00000400>,
> /* mhpmevent11: Indirect Branch Instruction Counter
> */
> <0x00000000 0x00000009 0xffffffff 0xffffffff
> 0x00000800>,
> /* mhpmevent12: LSU Spec Fail */
> <0x00000000 0x0000000a 0xffffffff 0xffffffff
> 0x00001000>,
> /* mhpmevent13: Store Instruction */
> <0x00000000 0x0000000b 0xffffffff 0xffffffff
> 0x00002000>,
> /* mhpmevent14: L1 DCache read access Counter */
> <0x00000000 0x0000000c 0xffffffff 0xffffffff
> 0x00004000>,
> /* mhpmevent15: L1 DCache read miss Counter */
> <0x00000000 0x0000000d 0xffffffff 0xffffffff
> 0x00008000>,
> /* mhpmevent16: L1 DCache write access Counter */
> <0x00000000 0x0000000e 0xffffffff 0xffffffff
> 0x00010000>,
> /* mhpmevent17: L1 DCache write access Counter */
> <0x00000000 0x0000000f 0xffffffff 0xffffffff
> 0x00020000>,
> /* mhpmevent18: L2 Cache read access Counter */
> <0x00000000 0x00000010 0xffffffff 0xffffffff
> 0x00040000>,
> /* mhpmevent19: L2 Cache read miss Counter */
> <0x00000000 0x00000011 0xffffffff 0xffffffff
> 0x00080000>,
> /* mhpmevent20: L2 Cache write access Counter */
> <0x00000000 0x00000012 0xffffffff 0xffffffff
> 0x00100000>,
> /* mhpmevent21: L2 Cache write miss Counter */
> <0x00000000 0x00000013 0xffffffff 0xffffffff
> 0x00200000>,
> /* mhpmevent22: RF Launch Fail */
> <0x00000000 0x00000014 0xffffffff 0xffffffff
> 0x00400000>,
> /* mhpmevent23: RF Reg Launch Fail */
> <0x00000000 0x00000015 0xffffffff 0xffffffff
> 0x00800000>,
> /* mhpmevent24: RF Instruction */
> <0x00000000 0x00000016 0xffffffff 0xffffffff
> 0x01000000>,
> /* mhpmevent25: LSU Cross 4K Stall */
> <0x00000000 0x00000017 0xffffffff 0xffffffff
> 0x02000000>,
> /* mhpmevent26: LSU Other Stall */
> <0x00000000 0x00000018 0xffffffff 0xffffffff
> 0x04000000>,
> /* mhpmevent27: LSU SQ Discard */
> <0x00000000 0x00000019 0xffffffff 0xffffffff
> 0x08000000>,
> /* mhpmevent28: LSU SQ Data Discard */
> <0x00000000 0x0000001a 0xffffffff 0xffffffff
> 0x10000000>;
> };
>
> ---
> tools/perf/pmu-events/arch/riscv/mapfile.csv | 1 +
> .../arch/riscv/t-head/c9xx/cache.json | 67 +++++++++++++++++
> .../arch/riscv/t-head/c9xx/firmware.json | 68
> ++++++++++++++++++
> .../arch/riscv/t-head/c9xx/instruction.json | 72
> +++++++++++++++++++
> .../arch/riscv/t-head/c9xx/microarch.json | 67 +++++++++++++++++
> 5 files changed, 275 insertions(+)
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/cache.json
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/firmware.json
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/instruction.json
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/microarch.json
>
> diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> index c61b3d6ef616..dd1d998a7ad6 100644
> --- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> +++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> @@ -15,3 +15,4 @@
> #
> #MVENDORID-MARCHID-MIMPID,Version,Filename,EventType
> 0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
> +0x5b7-0x0-0x0,v1,t-head/c9xx,core
> diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> new file mode 100644
> index 000000000000..2c6e9a904a11
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> @@ -0,0 +1,67 @@
> +[
> + {
> + "EventName": "L1_ICACHE_ACCESS",
> + "EventCode": "0x000001",
> + "BriefDescription": "L1 instruction cache access"
> + },
> + {
> + "EventName": "L1_ICACHE_MISS",
> + "EventCode": "0x000002",
> + "BriefDescription": "L1 instruction cache miss"
> + },
> + {
> + "EventName": "INST_TLB_MISS",
> + "EventCode": "0x000003",
> + "BriefDescription": "Instruction TLB (I-UTLB) miss"
> + },
> + {
> + "EventName": "DATA_TLB_MISS",
> + "EventCode": "0x000004",
> + "BriefDescription": "Data TLB (D-UTLB) miss"
> + },
> + {
> + "EventName": "JTLB_MISS",
> + "EventCode": "0x000005",
> + "BriefDescription": "JTLB access miss"
> + },
> + {
> + "EventName": "L1_DCACHE_READ_ACCESS",
> + "EventCode": "0x00000c",
> + "BriefDescription": "L1 data cache read access"
> + },
> + {
> + "EventName": "L1_DCACHE_READ_MISS",
> + "EventCode": "0x00000d",
> + "BriefDescription": "L1 data cache read miss"
> + },
> + {
> + "EventName": "L1_DCACHE_WRITE_ACCESS",
> + "EventCode": "0x00000e",
> + "BriefDescription": "L1 data cache write access"
> + },
> + {
> + "EventName": "L1_DCACHE_WRITE_MISS",
> + "EventCode": "0x00000f",
> + "BriefDescription": "L1 data cache write miss"
> + },
> + {
> + "EventName": "L2_CACHE_READ_ACCESS",
> + "EventCode": "0x000010",
> + "BriefDescription": "L2 cache read access"
> + },
> + {
> + "EventName": "L2_CACHE_READ_MISS",
> + "EventCode": "0x000011",
> + "BriefDescription": "L2 cache read miss"
> + },
> + {
> + "EventName": "L2_CACHE_WRITE_ACCESS",
> + "EventCode": "0x000012",
> + "BriefDescription": "L2 cache write access"
> + },
> + {
> + "EventName": "L2_CACHE_WRITE_MISS",
> + "EventCode": "0x000013",
> + "BriefDescription": "L2 cache write miss"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/firmware.json b/tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/firmware.json
> new file mode 100644
> index 000000000000..9b4a032186a7
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
> @@ -0,0 +1,68 @@
> +[
> + {
> + "ArchStdEvent": "FW_MISALIGNED_LOAD"
> + },
> + {
> + "ArchStdEvent": "FW_MISALIGNED_STORE"
> + },
> + {
> + "ArchStdEvent": "FW_ACCESS_LOAD"
> + },
> + {
> + "ArchStdEvent": "FW_ACCESS_STORE"
> + },
> + {
> + "ArchStdEvent": "FW_ILLEGAL_INSN"
> + },
> + {
> + "ArchStdEvent": "FW_SET_TIMER"
> + },
> + {
> + "ArchStdEvent": "FW_IPI_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_IPI_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_FENCE_I_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_FENCE_I_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/instruction.json b/tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/instruction.json
> new file mode 100644
> index 000000000000..7f1649548177
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
> @@ -0,0 +1,72 @@
> +[
> + {
> + "EventName": "BR_COND_MIS_PRED",
> + "EventCode": "0x000006",
> + "BriefDescription": "Conditional branch mispredict"
> + },
> + {
> + "EventName": "INST_BR_COND_MIS",
> + "EventCode": "0x000007",
> + "BriefDescription": "Conditional branch instruction"
> + },
> + {
> + "EventName": "BR_INDIRECT_MIS_PRED",
> + "EventCode": "0x000008",
> + "BriefDescription": "Indirect branch mispredict"
> + },
> + {
> + "EventName": "INST_BR_COND_MIS",
> + "EventCode": "0x000009",
> + "BriefDescription": "Indirect branch instruction"
> + },
> + {
> + "EventName": "INST_STORE",
> + "EventCode": "0x00000b",
> + "BriefDescription": "Store instruction retired"
> + },
> + {
> + "EventName": "INST_ALU",
> + "EventCode": "0x00001d",
> + "BriefDescription": "ALU instruction retired"
> + },
> + {
> + "EventName": "INST_LOAD_SAVE",
> + "EventCode": "0x00001e",
> + "BriefDescription": "LOAD/Store instruction retired"
> + },
> + {
> + "EventName": "INST_VECTOR",
> + "EventCode": "0x00001f",
> + "BriefDescription": "Vector instruction retired"
> + },
> + {
> + "EventName": "INST_CSR_ACCESS",
> + "EventCode": "0x000020",
> + "BriefDescription": "CSR access instruction retired"
> + },
> + {
> + "EventName": "INST_SYNC",
> + "EventCode": "0x000021",
> + "BriefDescription": "Sync instruction retired"
> + },
> + {
> + "EventName": "INST_LOAD_SAVE_UNALIGNED",
> + "EventCode": "0x000022",
> + "BriefDescription": "Load/Store unaligned access instruction
> retired"
> + },
> + {
> + "EventName": "INST_ENV_CALL",
> + "EventCode": "0x000025",
> + "BriefDescription": "Environment call instruction retired"
> + },
> + {
> + "EventName": "INST_LONGJUMP",
> + "EventCode": "0x000026",
> + "BriefDescription": "Long jump instruction retired (jump dist
> over 8MB)"
> + },
> + {
> + "EventName": "INST_FP",
> + "EventCode": "0x00002a",
> + "BriefDescription": "Float point instruction retired"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/microarch.json b/tools/perf/pmu-events/arch/riscv/t-
> head/c9xx/microarch.json
> new file mode 100644
> index 000000000000..073c1d085021
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
> @@ -0,0 +1,67 @@
> +[
> + {
> + "EventName": "LSU_SPEC_FAIL",
> + "EventCode": "0x00000a",
> + "BriefDescription": "LSU Spec Fail"
> + },
> + {
> + "EventName": "RF_LAUNCH_FAIL",
> + "EventCode": "0x000014",
> + "BriefDescription": "Register file launch fail"
> + },
> + {
> + "EventName": "RF_REG_LAUNCH",
> + "EventCode": "0x000015",
> + "BriefDescription": "Register file reg launch"
> + },
> + {
> + "EventName": "RF_INSTRUCTION",
> + "EventCode": "0x000016",
> + "BriefDescription": "Register file instruction"
> + },
> + {
> + "EventName": "LSU_STALL_CROSS_4K",
> + "EventCode": "0x000017",
> + "BriefDescription": "LSU stall with cross 4K access"
> + },
> + {
> + "EventName": "LSU_STALL_OTHER",
> + "EventCode": "0x000018",
> + "BriefDescription": "LSU stall with other events"
> + },
> + {
> + "EventName": "LSU_SQ_DISCARD",
> + "EventCode": "0x000019",
> + "BriefDescription": "LSU SQ discard"
> + },
> + {
> + "EventName": "LSU_SQ_DISCARD_DATA",
> + "EventCode": "0x00001a",
> + "BriefDescription": "LSU SQ data discard"
> + },
> + {
> + "EventName": "INT_NUMBER",
> + "EventCode": "0x000023",
> + "BriefDescription": "Interrupt number respond"
> + },
> + {
> + "EventName": "INT_OFF_CYCLE",
> + "EventCode": "0x000024",
> + "BriefDescription": "Off cycle before interrupt arbitrating"
> + },
> + {
> + "EventName": "STALLED_CYCLE_IFU",
> + "EventCode": "0x000027",
> + "BriefDescription": "Stall cycles of the instruction fetch unit"
> + },
> + {
> + "EventName": "STALLED_CYCLE_IDU",
> + "EventCode": "0x000028",
> + "BriefDescription": "Stall cycles of the instruction decoding
> unit and next-level pipeline unit"
> + },
> + {
> + "EventName": "STALLED_CYCLE_SYNC",
> + "EventCode": "0x000029",
> + "BriefDescription": "Stalled cycle for sync instructions
> (FENCE/FENCE.i/SFENCE/SYNC...)"
> + }
> +]
> --
> 2.40.1
>
>
> _______________________________________________
> linux-riscv mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-riscv
> licheerv # perf record
> [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> [perf:117]
> [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> [perf:117]
> [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> [perf:117]
> [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> [perf:117]
>
> But that's not related to your patch anyway.
Same issue on c920, but it did not always occur.
Like a sbi issue for T-HEAD cpus.
> I am strongly against using "c9xx" wildcard, i would prefer declaring
> them separate (especially taking in mind that c920 is c910 with vector
> - AFAIK), but that's up to Arnaldo to decide.
AFAIK, there is no reliable way to distinguish c906 and c910 cores. And
the events of c910 and c920 are the same (according to the draft document
of the c920).
Anyway, I agree to let Arnaldo decide.
> Tested-by: Nikita Shubin <[email protected]>
Thanks.
On Wed, 17 May 2023 00:12:38 PDT (-0700), [email protected] wrote:
> Add json file of T-HEAD C9xx series events.
>
> The event idx (raw value) is summary as following:
>
> event id range | support cpu
> 0x01 - 0x06 | c906,c910,c920
> 0x07 | c906
> 0x08 - 0x0a | c910,c920
> 0x0b - 0x0f | c906,c910,c920
> 0x10 - 0x1a | c910,c920
> 0x1b - 0x1c | c910,c920 (software defined for all >= 0x1b)
> 0x1d - 0x2a | c906
>
> The event ids are based on the public document of T-HEAD and cover
> the c9xx series.
>
> These events are the max that c9xx series support.
> Since T-HEAD let manufacturers decide whether events are usable,
> the final support of the perf events is determined by the pmu node
> of the soc dtb.
>
> Signed-off-by: Inochi Amaoto <[email protected]>
> ---
> Change from v2:
> 1. add C906 0x07 events to the instruction.json file
> 2. fix name for events 0x07 and 0x09 in instruction.json
>
> Example:
>
> This pmu node example can be used on sophgo sg2042 platform (c920) with
> mainline OpenSBI.
> It should also work on T-HEAD th1520.
>
> For the one use C906 core. Only event 0x01 - 0x07, 0xb - 0xf has known
> CSR mapping. The other events do not have known CSR mapping in document
> until now.
> This pmu node needs to be shorten to adopt c906
>
> pmu {
> compatible = "riscv,pmu";
> riscv,event-to-mhpmcounters =
> // event-start event-end a bitmap of all the MHPMCOUNTERx
> <0x00006 0x00006 0x00000400>,
> <0x00005 0x00005 0x00000800>,
> <0x10000 0x10000 0x00004000>,
> <0x10001 0x10001 0x00008000>,
> <0x10002 0x10002 0x00010000>,
> <0x10003 0x10003 0x00020000>,
> <0x10008 0x10008 0x00000008>,
> <0x10009 0x10009 0x00000010>,
> <0x10010 0x10010 0x00040000>,
> <0x10011 0x10011 0x00080000>,
> <0x10012 0x10012 0x00100000>,
> <0x10013 0x10013 0x00200000>,
> <0x10019 0x10019 0x00000040>,
> <0x10021 0x10021 0x00000020>;
> riscv,event-to-mhpmevent =
> // event-id event-selector
> /* mhpmevent3: L1I_READ_ACCESS */
> <0x10008 0x00000000 0x00000001>,
> /* mhpmevent4: L1I_READ_MISS */
> <0x10009 0x00000000 0x00000002>,
> /* mhpmevent5: ITLB_READ_MISS */
> <0x10021 0x00000000 0x00000003>,
> /* mhpmevent6: DTLB_READ_MISS */
> <0x10019 0x00000000 0x00000004>,
> /* mhpmevent10: PMU_HW_BRANCH_MISSES */
> <0x00006 0x00000000 0x00000008>,
> /* mhpmevent11: PMU_HW_BRANCH_INSTRUCTIONS */
> <0x00005 0x00000000 0x00000009>,
> /* mhpmevent14: L1D_READ_ACCESS */
> <0x10000 0x00000000 0x0000000c>,
> /* mhpmevent15: L1D_READ_MISS */
> <0x10001 0x00000000 0x0000000d>,
> /* mhpmevent16: L1D_WRITE_ACCESS */
> <0x10002 0x00000000 0x0000000e>,
> /* mhpmevent17: L1D_WRITE_MISS */
> <0x10003 0x00000000 0x0000000f>,
> /* mhpmevent18: LL_READ_ACCESS */
> <0x10010 0x00000000 0x00000010>,
> /* mhpmevent19: LL_READ_MISS */
> <0x10011 0x00000000 0x00000011>,
> /* mhpmevent20: LL_WRITE_ACCESS */
> <0x10012 0x00000000 0x00000012>,
> /* mhpmevent21: LL_WRITE_MISS */
> <0x10013 0x00000000 0x00000013>;
> riscv,raw-event-to-mhpmcounters =
> /* mhpmevent3: L1 ICache Access Counter */
> <0x00000000 0x00000001 0xffffffff 0xffffffff 0x00000008>,
> /* mhpmevent4: L1 ICache Miss Counter */
> <0x00000000 0x00000002 0xffffffff 0xffffffff 0x00000010>,
> /* mhpmevent5: I-UTLB Miss Counter */
> <0x00000000 0x00000003 0xffffffff 0xffffffff 0x00000020>,
> /* mhpmevent6: D-UTLB Miss Counter */
> <0x00000000 0x00000004 0xffffffff 0xffffffff 0x00000040>,
> /* mhpmevent7: JTLB Miss */
> <0x00000000 0x00000005 0xffffffff 0xffffffff 0x00000080>,
> /* mhpmevent8: Conditional Branch Mispredict */
> <0x00000000 0x00000006 0xffffffff 0xffffffff 0x00000100>,
> /* mhpmevent9: Conditional Branch Instruction Counter (reserved for c910)*/
> /* <0x00000000 0x00000007 0xffffffff 0xffffffff 0x00000200>, */
> /* mhpmevent10: Indirect Branch Mispredict Counter */
> <0x00000000 0x00000008 0xffffffff 0xffffffff 0x00000400>,
> /* mhpmevent11: Indirect Branch Instruction Counter */
> <0x00000000 0x00000009 0xffffffff 0xffffffff 0x00000800>,
> /* mhpmevent12: LSU Spec Fail */
> <0x00000000 0x0000000a 0xffffffff 0xffffffff 0x00001000>,
> /* mhpmevent13: Store Instruction */
> <0x00000000 0x0000000b 0xffffffff 0xffffffff 0x00002000>,
> /* mhpmevent14: L1 DCache read access Counter */
> <0x00000000 0x0000000c 0xffffffff 0xffffffff 0x00004000>,
> /* mhpmevent15: L1 DCache read miss Counter */
> <0x00000000 0x0000000d 0xffffffff 0xffffffff 0x00008000>,
> /* mhpmevent16: L1 DCache write access Counter */
> <0x00000000 0x0000000e 0xffffffff 0xffffffff 0x00010000>,
> /* mhpmevent17: L1 DCache write access Counter */
> <0x00000000 0x0000000f 0xffffffff 0xffffffff 0x00020000>,
> /* mhpmevent18: L2 Cache read access Counter */
> <0x00000000 0x00000010 0xffffffff 0xffffffff 0x00040000>,
> /* mhpmevent19: L2 Cache read miss Counter */
> <0x00000000 0x00000011 0xffffffff 0xffffffff 0x00080000>,
> /* mhpmevent20: L2 Cache write access Counter */
> <0x00000000 0x00000012 0xffffffff 0xffffffff 0x00100000>,
> /* mhpmevent21: L2 Cache write miss Counter */
> <0x00000000 0x00000013 0xffffffff 0xffffffff 0x00200000>,
> /* mhpmevent22: RF Launch Fail */
> <0x00000000 0x00000014 0xffffffff 0xffffffff 0x00400000>,
> /* mhpmevent23: RF Reg Launch Fail */
> <0x00000000 0x00000015 0xffffffff 0xffffffff 0x00800000>,
> /* mhpmevent24: RF Instruction */
> <0x00000000 0x00000016 0xffffffff 0xffffffff 0x01000000>,
> /* mhpmevent25: LSU Cross 4K Stall */
> <0x00000000 0x00000017 0xffffffff 0xffffffff 0x02000000>,
> /* mhpmevent26: LSU Other Stall */
> <0x00000000 0x00000018 0xffffffff 0xffffffff 0x04000000>,
> /* mhpmevent27: LSU SQ Discard */
> <0x00000000 0x00000019 0xffffffff 0xffffffff 0x08000000>,
> /* mhpmevent28: LSU SQ Data Discard */
> <0x00000000 0x0000001a 0xffffffff 0xffffffff 0x10000000>;
> };
>
> ---
> tools/perf/pmu-events/arch/riscv/mapfile.csv | 1 +
> .../arch/riscv/t-head/c9xx/cache.json | 67 +++++++++++++++++
> .../arch/riscv/t-head/c9xx/firmware.json | 68 ++++++++++++++++++
> .../arch/riscv/t-head/c9xx/instruction.json | 72 +++++++++++++++++++
> .../arch/riscv/t-head/c9xx/microarch.json | 67 +++++++++++++++++
> 5 files changed, 275 insertions(+)
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
> create mode 100644 tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
>
> diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> index c61b3d6ef616..dd1d998a7ad6 100644
> --- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> +++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> @@ -15,3 +15,4 @@
> #
> #MVENDORID-MARCHID-MIMPID,Version,Filename,EventType
> 0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
> +0x5b7-0x0-0x0,v1,t-head/c9xx,core
> diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> new file mode 100644
> index 000000000000..2c6e9a904a11
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> @@ -0,0 +1,67 @@
> +[
> + {
> + "EventName": "L1_ICACHE_ACCESS",
> + "EventCode": "0x000001",
> + "BriefDescription": "L1 instruction cache access"
> + },
> + {
> + "EventName": "L1_ICACHE_MISS",
> + "EventCode": "0x000002",
> + "BriefDescription": "L1 instruction cache miss"
> + },
> + {
> + "EventName": "INST_TLB_MISS",
> + "EventCode": "0x000003",
> + "BriefDescription": "Instruction TLB (I-UTLB) miss"
> + },
> + {
> + "EventName": "DATA_TLB_MISS",
> + "EventCode": "0x000004",
> + "BriefDescription": "Data TLB (D-UTLB) miss"
> + },
> + {
> + "EventName": "JTLB_MISS",
> + "EventCode": "0x000005",
> + "BriefDescription": "JTLB access miss"
> + },
> + {
> + "EventName": "L1_DCACHE_READ_ACCESS",
> + "EventCode": "0x00000c",
> + "BriefDescription": "L1 data cache read access"
> + },
> + {
> + "EventName": "L1_DCACHE_READ_MISS",
> + "EventCode": "0x00000d",
> + "BriefDescription": "L1 data cache read miss"
> + },
> + {
> + "EventName": "L1_DCACHE_WRITE_ACCESS",
> + "EventCode": "0x00000e",
> + "BriefDescription": "L1 data cache write access"
> + },
> + {
> + "EventName": "L1_DCACHE_WRITE_MISS",
> + "EventCode": "0x00000f",
> + "BriefDescription": "L1 data cache write miss"
> + },
> + {
> + "EventName": "L2_CACHE_READ_ACCESS",
> + "EventCode": "0x000010",
> + "BriefDescription": "L2 cache read access"
> + },
> + {
> + "EventName": "L2_CACHE_READ_MISS",
> + "EventCode": "0x000011",
> + "BriefDescription": "L2 cache read miss"
> + },
> + {
> + "EventName": "L2_CACHE_WRITE_ACCESS",
> + "EventCode": "0x000012",
> + "BriefDescription": "L2 cache write access"
> + },
> + {
> + "EventName": "L2_CACHE_WRITE_MISS",
> + "EventCode": "0x000013",
> + "BriefDescription": "L2 cache write miss"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
> new file mode 100644
> index 000000000000..9b4a032186a7
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
> @@ -0,0 +1,68 @@
> +[
> + {
> + "ArchStdEvent": "FW_MISALIGNED_LOAD"
> + },
> + {
> + "ArchStdEvent": "FW_MISALIGNED_STORE"
> + },
> + {
> + "ArchStdEvent": "FW_ACCESS_LOAD"
> + },
> + {
> + "ArchStdEvent": "FW_ACCESS_STORE"
> + },
> + {
> + "ArchStdEvent": "FW_ILLEGAL_INSN"
> + },
> + {
> + "ArchStdEvent": "FW_SET_TIMER"
> + },
> + {
> + "ArchStdEvent": "FW_IPI_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_IPI_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_FENCE_I_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_FENCE_I_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
> + },
> + {
> + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
> new file mode 100644
> index 000000000000..7f1649548177
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
> @@ -0,0 +1,72 @@
> +[
> + {
> + "EventName": "BR_COND_MIS_PRED",
> + "EventCode": "0x000006",
> + "BriefDescription": "Conditional branch mispredict"
> + },
> + {
> + "EventName": "INST_BR_COND_MIS",
> + "EventCode": "0x000007",
> + "BriefDescription": "Conditional branch instruction"
> + },
> + {
> + "EventName": "BR_INDIRECT_MIS_PRED",
> + "EventCode": "0x000008",
> + "BriefDescription": "Indirect branch mispredict"
> + },
> + {
> + "EventName": "INST_BR_COND_MIS",
> + "EventCode": "0x000009",
> + "BriefDescription": "Indirect branch instruction"
> + },
> + {
> + "EventName": "INST_STORE",
> + "EventCode": "0x00000b",
> + "BriefDescription": "Store instruction retired"
> + },
> + {
> + "EventName": "INST_ALU",
> + "EventCode": "0x00001d",
> + "BriefDescription": "ALU instruction retired"
> + },
> + {
> + "EventName": "INST_LOAD_SAVE",
> + "EventCode": "0x00001e",
> + "BriefDescription": "LOAD/Store instruction retired"
> + },
> + {
> + "EventName": "INST_VECTOR",
> + "EventCode": "0x00001f",
> + "BriefDescription": "Vector instruction retired"
> + },
> + {
> + "EventName": "INST_CSR_ACCESS",
> + "EventCode": "0x000020",
> + "BriefDescription": "CSR access instruction retired"
> + },
> + {
> + "EventName": "INST_SYNC",
> + "EventCode": "0x000021",
> + "BriefDescription": "Sync instruction retired"
> + },
> + {
> + "EventName": "INST_LOAD_SAVE_UNALIGNED",
> + "EventCode": "0x000022",
> + "BriefDescription": "Load/Store unaligned access instruction retired"
> + },
> + {
> + "EventName": "INST_ENV_CALL",
> + "EventCode": "0x000025",
> + "BriefDescription": "Environment call instruction retired"
> + },
> + {
> + "EventName": "INST_LONGJUMP",
> + "EventCode": "0x000026",
> + "BriefDescription": "Long jump instruction retired (jump dist over 8MB)"
> + },
> + {
> + "EventName": "INST_FP",
> + "EventCode": "0x00002a",
> + "BriefDescription": "Float point instruction retired"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
> new file mode 100644
> index 000000000000..073c1d085021
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
> @@ -0,0 +1,67 @@
> +[
> + {
> + "EventName": "LSU_SPEC_FAIL",
> + "EventCode": "0x00000a",
> + "BriefDescription": "LSU Spec Fail"
> + },
> + {
> + "EventName": "RF_LAUNCH_FAIL",
> + "EventCode": "0x000014",
> + "BriefDescription": "Register file launch fail"
> + },
> + {
> + "EventName": "RF_REG_LAUNCH",
> + "EventCode": "0x000015",
> + "BriefDescription": "Register file reg launch"
> + },
> + {
> + "EventName": "RF_INSTRUCTION",
> + "EventCode": "0x000016",
> + "BriefDescription": "Register file instruction"
> + },
> + {
> + "EventName": "LSU_STALL_CROSS_4K",
> + "EventCode": "0x000017",
> + "BriefDescription": "LSU stall with cross 4K access"
> + },
> + {
> + "EventName": "LSU_STALL_OTHER",
> + "EventCode": "0x000018",
> + "BriefDescription": "LSU stall with other events"
> + },
> + {
> + "EventName": "LSU_SQ_DISCARD",
> + "EventCode": "0x000019",
> + "BriefDescription": "LSU SQ discard"
> + },
> + {
> + "EventName": "LSU_SQ_DISCARD_DATA",
> + "EventCode": "0x00001a",
> + "BriefDescription": "LSU SQ data discard"
> + },
> + {
> + "EventName": "INT_NUMBER",
> + "EventCode": "0x000023",
> + "BriefDescription": "Interrupt number respond"
> + },
> + {
> + "EventName": "INT_OFF_CYCLE",
> + "EventCode": "0x000024",
> + "BriefDescription": "Off cycle before interrupt arbitrating"
> + },
> + {
> + "EventName": "STALLED_CYCLE_IFU",
> + "EventCode": "0x000027",
> + "BriefDescription": "Stall cycles of the instruction fetch unit"
> + },
> + {
> + "EventName": "STALLED_CYCLE_IDU",
> + "EventCode": "0x000028",
> + "BriefDescription": "Stall cycles of the instruction decoding unit and next-level pipeline unit"
> + },
> + {
> + "EventName": "STALLED_CYCLE_SYNC",
> + "EventCode": "0x000029",
> + "BriefDescription": "Stalled cycle for sync instructions (FENCE/FENCE.i/SFENCE/SYNC...)"
> + }
> +]
Acked-by: Palmer Dabbelt <[email protected]>
Hello,
On Thu, May 18, 2023 at 2:50 AM Inochi Amaoto <[email protected]> wrote:
>
> > licheerv # perf record
> > [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> > [perf:117]
> > [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> > [perf:117]
> > [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> > [perf:117]
> > [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> > [perf:117]
> >
> > But that's not related to your patch anyway.
>
> Same issue on c920, but it did not always occur.
> Like a sbi issue for T-HEAD cpus.
>
> > I am strongly against using "c9xx" wildcard, i would prefer declaring
> > them separate (especially taking in mind that c920 is c910 with vector
> > - AFAIK), but that's up to Arnaldo to decide.
>
> AFAIK, there is no reliable way to distinguish c906 and c910 cores. And
> the events of c910 and c920 are the same (according to the draft document
> of the c920).
>
> Anyway, I agree to let Arnaldo decide.
>
> > Tested-by: Nikita Shubin <[email protected]>
I'm collecting patches on behalf of Arnaldo this time.
It seems this patch was not picked up for a long time.
I think we can make changes for the c9xx wildcard later
if needed. I'll process it in the current form.
Thanks,
Namhyung
Hi, Namhyung
Since there is a fault in T-HEAD documentation, I am not sure whether
the perf events are correct. As a result, I suggest temporarily suppressing
this patch until I extract the correct events from its vendor perf driver.
I will prepare a new V4 patch once it is finished.
As for c9xx wildcard, the T-HEAD provides a `MCPUID` vendor CSR to allow
its CKLINK to get the detail CPU info. The format of this CSR are:
------------------------------------------------
|31 28|27 26|25 22|21 18|17 8|7 0|
| index | WLRL | family | class | model | WLRL |
------------------------------------------------
And for C9xx series (only index 0000 is vaild for us, as `MCPUID` also
provides other index).
| 0000 | xx | 0100 | class | xxxxxxxxxx | xxxxxxxx |
The class codes are:
C910: 0011
c906: 0100
The CSR is a M-mode only CSR, so now I'm exploring a clean way to
integrate this CSR into the kernel. Any advice?
Thanks,
Inochi
> Hello,
>
> On Thu, May 18, 2023 at 2:50 AM Inochi Amaoto <[email protected]> wrote:
> >
> >> licheerv # perf record
> >> [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> >> [perf:117]
> >> [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> >> [perf:117]
> >> [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> >> [perf:117]
> >> [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> >> [perf:117]
> >>
> >> But that's not related to your patch anyway.
> >
> > Same issue on c920, but it did not always occur.
> > Like a sbi issue for T-HEAD cpus.
> >
> >> I am strongly against using "c9xx" wildcard, i would prefer declaring
> >> them separate (especially taking in mind that c920 is c910 with vector
> >> - AFAIK), but that's up to Arnaldo to decide.
> >
> > AFAIK, there is no reliable way to distinguish c906 and c910 cores. And
> > the events of c910 and c920 are the same (according to the draft document
> > of the c920).
> >
> > Anyway, I agree to let Arnaldo decide.
> >
> >> Tested-by: Nikita Shubin <[email protected]>
>
> I'm collecting patches on behalf of Arnaldo this time.
> It seems this patch was not picked up for a long time.
>
> I think we can make changes for the c9xx wildcard later
> if needed. I'll process it in the current form.
>
> Thanks,
> Namhyung
>
Hello,
On Fri, Jun 23, 2023 at 6:33 PM Inochi Amaoto <[email protected]> wrote:
>
> Hi, Namhyung
>
> Since there is a fault in T-HEAD documentation, I am not sure whether
> the perf events are correct. As a result, I suggest temporarily suppressing
> this patch until I extract the correct events from its vendor perf driver.
> I will prepare a new V4 patch once it is finished.
Sure, thanks for letting me know.
>
> As for c9xx wildcard, the T-HEAD provides a `MCPUID` vendor CSR to allow
> its CKLINK to get the detail CPU info. The format of this CSR are:
>
> ------------------------------------------------
> |31 28|27 26|25 22|21 18|17 8|7 0|
> | index | WLRL | family | class | model | WLRL |
> ------------------------------------------------
>
> And for C9xx series (only index 0000 is vaild for us, as `MCPUID` also
> provides other index).
>
> | 0000 | xx | 0100 | class | xxxxxxxxxx | xxxxxxxx |
>
> The class codes are:
>
> C910: 0011
> c906: 0100
>
> The CSR is a M-mode only CSR, so now I'm exploring a clean way to
> integrate this CSR into the kernel. Any advice?
I don't know about the details. Is this CSR available from user space?
If not, you could add it somewhere in the sysfs.
Thanks,
Namhyung
> > Hello,
> >
> > On Thu, May 18, 2023 at 2:50 AM Inochi Amaoto <[email protected]> wrote:
> > >
> > >> licheerv # perf record
> > >> [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> > >> [perf:117]
> > >> [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> > >> [perf:117]
> > >> [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> > >> [perf:117]
> > >> [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> > >> [perf:117]
> > >>
> > >> But that's not related to your patch anyway.
> > >
> > > Same issue on c920, but it did not always occur.
> > > Like a sbi issue for T-HEAD cpus.
> > >
> > >> I am strongly against using "c9xx" wildcard, i would prefer declaring
> > >> them separate (especially taking in mind that c920 is c910 with vector
> > >> - AFAIK), but that's up to Arnaldo to decide.
> > >
> > > AFAIK, there is no reliable way to distinguish c906 and c910 cores. And
> > > the events of c910 and c920 are the same (according to the draft document
> > > of the c920).
> > >
> > > Anyway, I agree to let Arnaldo decide.
> > >
> > >> Tested-by: Nikita Shubin <[email protected]>
> >
> > I'm collecting patches on behalf of Arnaldo this time.
> > It seems this patch was not picked up for a long time.
> >
> > I think we can make changes for the c9xx wildcard later
> > if needed. I'll process it in the current form.
> >
> > Thanks,
> > Namhyung
> >
> Hello,
>
> On Fri, Jun 23, 2023 at 6:33 PM Inochi Amaoto <[email protected]> wrote:
> >
> > Hi, Namhyung
> >
> > Since there is a fault in T-HEAD documentation, I am not sure whether
> > the perf events are correct. As a result, I suggest temporarily suppressing
> > this patch until I extract the correct events from its vendor perf driver.
> > I will prepare a new V4 patch once it is finished.
>
> Sure, thanks for letting me know.
>
> >
> > As for c9xx wildcard, the T-HEAD provides a `MCPUID` vendor CSR to allow
> > its CKLINK to get the detail CPU info. The format of this CSR are:
> >
> > ------------------------------------------------
> > |31 28|27 26|25 22|21 18|17 8|7 0|
> > | index | WLRL | family | class | model | WLRL |
> > ------------------------------------------------
> >
> > And for C9xx series (only index 0000 is vaild for us, as `MCPUID` also
> > provides other index).
> >
> > | 0000 | xx | 0100 | class | xxxxxxxxxx | xxxxxxxx |
> >
> > The class codes are:
> >
> > C910: 0011
> > c906: 0100
> >
> > The CSR is a M-mode only CSR, so now I'm exploring a clean way to
> > integrate this CSR into the kernel. Any advice?
>
> I don't know about the details. Is this CSR available from user space?
> If not, you could add it somewhere in the sysfs.
>
> Thanks,
> Namhyung
>
>
This CSR is not directly available from user space, I will try sysfs. Thanks.
> >> Hello,
> >>
> >> On Thu, May 18, 2023 at 2:50 AM Inochi Amaoto <[email protected]> wrote:
> >>>
> >>>> licheerv # perf record
> >>>> [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> >>>> [perf:117]
> >>>> [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> >>>> [perf:117]
> >>>> [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> >>>> [perf:117]
> >>>> [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> >>>> [perf:117]
> >>>>
> >>>> But that's not related to your patch anyway.
> >>>
> >>> Same issue on c920, but it did not always occur.
> >>> Like a sbi issue for T-HEAD cpus.
> >>>
> >>>> I am strongly against using "c9xx" wildcard, i would prefer declaring
> >>>> them separate (especially taking in mind that c920 is c910 with vector
> >>>> - AFAIK), but that's up to Arnaldo to decide.
> >>>
> >>> AFAIK, there is no reliable way to distinguish c906 and c910 cores. And
> >>> the events of c910 and c920 are the same (according to the draft document
> >>> of the c920).
> >>>
> >>> Anyway, I agree to let Arnaldo decide.
> >>>
> >>>> Tested-by: Nikita Shubin <[email protected]>
> >>
> >> I'm collecting patches on behalf of Arnaldo this time.
> >> It seems this patch was not picked up for a long time.
> >>
> >> I think we can make changes for the c9xx wildcard later
> >> if needed. I'll process it in the current form.
> >>
> >> Thanks,
> >> Namhyung
> >>
>
On Fri, Jun 23, 2023 at 09:35:01PM -0700, Namhyung Kim wrote:
> On Fri, Jun 23, 2023 at 6:33 PM Inochi Amaoto <[email protected]> wrote:
> >
> > As for c9xx wildcard, the T-HEAD provides a `MCPUID` vendor CSR to allow
> > its CKLINK to get the detail CPU info. The format of this CSR are:
> >
> > ------------------------------------------------
> > |31 28|27 26|25 22|21 18|17 8|7 0|
> > | index | WLRL | family | class | model | WLRL |
> > ------------------------------------------------
> >
> > And for C9xx series (only index 0000 is vaild for us, as `MCPUID` also
> > provides other index).
> >
> > | 0000 | xx | 0100 | class | xxxxxxxxxx | xxxxxxxx |
> >
> > The class codes are:
> >
> > C910: 0011
> > c906: 0100
> >
> > The CSR is a M-mode only CSR, so now I'm exploring a clean way to
> > integrate this CSR into the kernel. Any advice?
See for example how riscv_cpuinfo_starting() reads mvendorid & Co.
> I don't know about the details. Is this CSR available from user space?
> If not, you could add it somewhere in the sysfs.
Machine mode is the highest privilege level, Supervisor mode is next &
User mode is the lowest. Typically the kernel runs in Supervisor mode.
Hello,
On Sat, Jun 24, 2023 at 1:54 AM Conor Dooley <[email protected]> wrote:
>
> On Fri, Jun 23, 2023 at 09:35:01PM -0700, Namhyung Kim wrote:
> > On Fri, Jun 23, 2023 at 6:33 PM Inochi Amaoto <[email protected]> wrote:
>
> > >
> > > As for c9xx wildcard, the T-HEAD provides a `MCPUID` vendor CSR to allow
> > > its CKLINK to get the detail CPU info. The format of this CSR are:
> > >
> > > ------------------------------------------------
> > > |31 28|27 26|25 22|21 18|17 8|7 0|
> > > | index | WLRL | family | class | model | WLRL |
> > > ------------------------------------------------
> > >
> > > And for C9xx series (only index 0000 is vaild for us, as `MCPUID` also
> > > provides other index).
> > >
> > > | 0000 | xx | 0100 | class | xxxxxxxxxx | xxxxxxxx |
> > >
> > > The class codes are:
> > >
> > > C910: 0011
> > > c906: 0100
> > >
> > > The CSR is a M-mode only CSR, so now I'm exploring a clean way to
> > > integrate this CSR into the kernel. Any advice?
>
> See for example how riscv_cpuinfo_starting() reads mvendorid & Co.
>
> > I don't know about the details. Is this CSR available from user space?
> > If not, you could add it somewhere in the sysfs.
>
> Machine mode is the highest privilege level, Supervisor mode is next &
> User mode is the lowest. Typically the kernel runs in Supervisor mode.
Maybe you're interested in this thread for user visible identifiers.
https://lore.kernel.org/all/[email protected]/
Thanks,
Namhyung
On Thu, May 18, 2023 at 2:09 AM Nikita Shubin <[email protected]> wrote:
>
> Hello Inochi Amaoto!
>
> Tested your latest patch on LicheeRV C906:
>
> linux $ git describe --tags
> v6.4-rc2-1-g85a420ada3a8
>
> opensbi $ git describe --tags
> v1.2-119-gdc1c7db
>
> stat_all_pmu.sh - PASSED
>
> Perf stat gives something:
>
> perf stat -e data_tlb_miss,inst_tlb_miss,jtlb_miss,l1_dcache_read_acc
> ess,l1_dcache_read_miss,l1_dcache_write_access,l1_dcache_write_miss,l1_
> icache_ac
> cess,l1_icache_miss -- sleep 1
>
> Performance counter stats for 'sleep 1':
>
> 9082 data_tlb_miss
> 5604 inst_tlb_miss
> 1790 jtlb_miss
> 130207 l1_dcache_read_access
> 3353 l1_dcache_read_miss
> 80454 l1_dcache_write_access
> 633 l1_dcache_write_miss
> 639820 l1_icache_access
> 14660 l1_icache_miss
>
> 1.009768750 seconds time elapsed
>
> 0.000000000 seconds user
> 0.010388000 seconds sys
>
> perf record hangs
>
> licheerv # perf record
> [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> [perf:117]
> [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> [perf:117]
> [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> [perf:117]
> [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> [perf:117]
>
Is it related to perf record or just random soft lockups you keep
getting on this board ?
> But that's not related to your patch anyway.
>
> I am strongly against using "c9xx" wildcard, i would prefer declaring
> them separate (especially taking in mind that c920 is c910 with vector
> - AFAIK), but that's up to Arnaldo to decide.
>
> Anyway:
>
> Tested-by: Nikita Shubin <[email protected]>
>
>
> On Wed, 2023-05-17 at 15:12 +0800, Inochi Amaoto wrote:
> > Add json file of T-HEAD C9xx series events.
> >
> > The event idx (raw value) is summary as following:
> >
> > event id range | support cpu
> > 0x01 - 0x06 | c906,c910,c920
> > 0x07 | c906
> > 0x08 - 0x0a | c910,c920
> > 0x0b - 0x0f | c906,c910,c920
> > 0x10 - 0x1a | c910,c920
> > 0x1b - 0x1c | c910,c920 (software defined for all >= 0x1b)
> > 0x1d - 0x2a | c906
> >
> > The event ids are based on the public document of T-HEAD and cover
> > the c9xx series.
> >
> > These events are the max that c9xx series support.
> > Since T-HEAD let manufacturers decide whether events are usable,
> > the final support of the perf events is determined by the pmu node
> > of the soc dtb.
> >
> > Signed-off-by: Inochi Amaoto <[email protected]>
> > ---
> > Change from v2:
> > 1. add C906 0x07 events to the instruction.json file
> > 2. fix name for events 0x07 and 0x09 in instruction.json
> >
> > Example:
> >
> > This pmu node example can be used on sophgo sg2042 platform (c920)
> > with
> > mainline OpenSBI.
> > It should also work on T-HEAD th1520.
> >
> > For the one use C906 core. Only event 0x01 - 0x07, 0xb - 0xf has
> > known
> > CSR mapping. The other events do not have known CSR mapping in
> > document
> > until now.
> > This pmu node needs to be shorten to adopt c906
> >
> > pmu {
> > compatible = "riscv,pmu";
> > riscv,event-to-mhpmcounters =
> > // event-start event-end a bitmap of all the
> > MHPMCOUNTERx
> > <0x00006 0x00006 0x00000400>,
> > <0x00005 0x00005 0x00000800>,
> > <0x10000 0x10000 0x00004000>,
> > <0x10001 0x10001 0x00008000>,
> > <0x10002 0x10002 0x00010000>,
> > <0x10003 0x10003 0x00020000>,
> > <0x10008 0x10008 0x00000008>,
> > <0x10009 0x10009 0x00000010>,
> > <0x10010 0x10010 0x00040000>,
> > <0x10011 0x10011 0x00080000>,
> > <0x10012 0x10012 0x00100000>,
> > <0x10013 0x10013 0x00200000>,
> > <0x10019 0x10019 0x00000040>,
> > <0x10021 0x10021 0x00000020>;
> > riscv,event-to-mhpmevent =
> > // event-id event-selector
> > /* mhpmevent3: L1I_READ_ACCESS */
> > <0x10008 0x00000000 0x00000001>,
> > /* mhpmevent4: L1I_READ_MISS */
> > <0x10009 0x00000000 0x00000002>,
> > /* mhpmevent5: ITLB_READ_MISS */
> > <0x10021 0x00000000 0x00000003>,
> > /* mhpmevent6: DTLB_READ_MISS */
> > <0x10019 0x00000000 0x00000004>,
> > /* mhpmevent10: PMU_HW_BRANCH_MISSES */
> > <0x00006 0x00000000 0x00000008>,
> > /* mhpmevent11: PMU_HW_BRANCH_INSTRUCTIONS */
> > <0x00005 0x00000000 0x00000009>,
> > /* mhpmevent14: L1D_READ_ACCESS */
> > <0x10000 0x00000000 0x0000000c>,
> > /* mhpmevent15: L1D_READ_MISS */
> > <0x10001 0x00000000 0x0000000d>,
> > /* mhpmevent16: L1D_WRITE_ACCESS */
> > <0x10002 0x00000000 0x0000000e>,
> > /* mhpmevent17: L1D_WRITE_MISS */
> > <0x10003 0x00000000 0x0000000f>,
> > /* mhpmevent18: LL_READ_ACCESS */
> > <0x10010 0x00000000 0x00000010>,
> > /* mhpmevent19: LL_READ_MISS */
> > <0x10011 0x00000000 0x00000011>,
> > /* mhpmevent20: LL_WRITE_ACCESS */
> > <0x10012 0x00000000 0x00000012>,
> > /* mhpmevent21: LL_WRITE_MISS */
> > <0x10013 0x00000000 0x00000013>;
> > riscv,raw-event-to-mhpmcounters =
> > /* mhpmevent3: L1 ICache Access Counter */
> > <0x00000000 0x00000001 0xffffffff 0xffffffff
> > 0x00000008>,
> > /* mhpmevent4: L1 ICache Miss Counter */
> > <0x00000000 0x00000002 0xffffffff 0xffffffff
> > 0x00000010>,
> > /* mhpmevent5: I-UTLB Miss Counter */
> > <0x00000000 0x00000003 0xffffffff 0xffffffff
> > 0x00000020>,
> > /* mhpmevent6: D-UTLB Miss Counter */
> > <0x00000000 0x00000004 0xffffffff 0xffffffff
> > 0x00000040>,
> > /* mhpmevent7: JTLB Miss */
> > <0x00000000 0x00000005 0xffffffff 0xffffffff
> > 0x00000080>,
> > /* mhpmevent8: Conditional Branch Mispredict */
> > <0x00000000 0x00000006 0xffffffff 0xffffffff
> > 0x00000100>,
> > /* mhpmevent9: Conditional Branch Instruction Counter
> > (reserved for c910)*/
> > /* <0x00000000 0x00000007 0xffffffff 0xffffffff
> > 0x00000200>, */
> > /* mhpmevent10: Indirect Branch Mispredict Counter */
> > <0x00000000 0x00000008 0xffffffff 0xffffffff
> > 0x00000400>,
> > /* mhpmevent11: Indirect Branch Instruction Counter
> > */
> > <0x00000000 0x00000009 0xffffffff 0xffffffff
> > 0x00000800>,
> > /* mhpmevent12: LSU Spec Fail */
> > <0x00000000 0x0000000a 0xffffffff 0xffffffff
> > 0x00001000>,
> > /* mhpmevent13: Store Instruction */
> > <0x00000000 0x0000000b 0xffffffff 0xffffffff
> > 0x00002000>,
> > /* mhpmevent14: L1 DCache read access Counter */
> > <0x00000000 0x0000000c 0xffffffff 0xffffffff
> > 0x00004000>,
> > /* mhpmevent15: L1 DCache read miss Counter */
> > <0x00000000 0x0000000d 0xffffffff 0xffffffff
> > 0x00008000>,
> > /* mhpmevent16: L1 DCache write access Counter */
> > <0x00000000 0x0000000e 0xffffffff 0xffffffff
> > 0x00010000>,
> > /* mhpmevent17: L1 DCache write access Counter */
> > <0x00000000 0x0000000f 0xffffffff 0xffffffff
> > 0x00020000>,
> > /* mhpmevent18: L2 Cache read access Counter */
> > <0x00000000 0x00000010 0xffffffff 0xffffffff
> > 0x00040000>,
> > /* mhpmevent19: L2 Cache read miss Counter */
> > <0x00000000 0x00000011 0xffffffff 0xffffffff
> > 0x00080000>,
> > /* mhpmevent20: L2 Cache write access Counter */
> > <0x00000000 0x00000012 0xffffffff 0xffffffff
> > 0x00100000>,
> > /* mhpmevent21: L2 Cache write miss Counter */
> > <0x00000000 0x00000013 0xffffffff 0xffffffff
> > 0x00200000>,
> > /* mhpmevent22: RF Launch Fail */
> > <0x00000000 0x00000014 0xffffffff 0xffffffff
> > 0x00400000>,
> > /* mhpmevent23: RF Reg Launch Fail */
> > <0x00000000 0x00000015 0xffffffff 0xffffffff
> > 0x00800000>,
> > /* mhpmevent24: RF Instruction */
> > <0x00000000 0x00000016 0xffffffff 0xffffffff
> > 0x01000000>,
> > /* mhpmevent25: LSU Cross 4K Stall */
> > <0x00000000 0x00000017 0xffffffff 0xffffffff
> > 0x02000000>,
> > /* mhpmevent26: LSU Other Stall */
> > <0x00000000 0x00000018 0xffffffff 0xffffffff
> > 0x04000000>,
> > /* mhpmevent27: LSU SQ Discard */
> > <0x00000000 0x00000019 0xffffffff 0xffffffff
> > 0x08000000>,
> > /* mhpmevent28: LSU SQ Data Discard */
> > <0x00000000 0x0000001a 0xffffffff 0xffffffff
> > 0x10000000>;
> > };
> >
> > ---
> > tools/perf/pmu-events/arch/riscv/mapfile.csv | 1 +
> > .../arch/riscv/t-head/c9xx/cache.json | 67 +++++++++++++++++
> > .../arch/riscv/t-head/c9xx/firmware.json | 68
> > ++++++++++++++++++
> > .../arch/riscv/t-head/c9xx/instruction.json | 72
> > +++++++++++++++++++
> > .../arch/riscv/t-head/c9xx/microarch.json | 67 +++++++++++++++++
> > 5 files changed, 275 insertions(+)
> > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/cache.json
> > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/firmware.json
> > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/instruction.json
> > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/microarch.json
> >
> > diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > index c61b3d6ef616..dd1d998a7ad6 100644
> > --- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > +++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > @@ -15,3 +15,4 @@
> > #
> > #MVENDORID-MARCHID-MIMPID,Version,Filename,EventType
> > 0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
> > +0x5b7-0x0-0x0,v1,t-head/c9xx,core
> > diff --git a/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> > b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> > new file mode 100644
> > index 000000000000..2c6e9a904a11
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> > @@ -0,0 +1,67 @@
> > +[
> > + {
> > + "EventName": "L1_ICACHE_ACCESS",
> > + "EventCode": "0x000001",
> > + "BriefDescription": "L1 instruction cache access"
> > + },
> > + {
> > + "EventName": "L1_ICACHE_MISS",
> > + "EventCode": "0x000002",
> > + "BriefDescription": "L1 instruction cache miss"
> > + },
> > + {
> > + "EventName": "INST_TLB_MISS",
> > + "EventCode": "0x000003",
> > + "BriefDescription": "Instruction TLB (I-UTLB) miss"
> > + },
> > + {
> > + "EventName": "DATA_TLB_MISS",
> > + "EventCode": "0x000004",
> > + "BriefDescription": "Data TLB (D-UTLB) miss"
> > + },
> > + {
> > + "EventName": "JTLB_MISS",
> > + "EventCode": "0x000005",
> > + "BriefDescription": "JTLB access miss"
> > + },
> > + {
> > + "EventName": "L1_DCACHE_READ_ACCESS",
> > + "EventCode": "0x00000c",
> > + "BriefDescription": "L1 data cache read access"
> > + },
> > + {
> > + "EventName": "L1_DCACHE_READ_MISS",
> > + "EventCode": "0x00000d",
> > + "BriefDescription": "L1 data cache read miss"
> > + },
> > + {
> > + "EventName": "L1_DCACHE_WRITE_ACCESS",
> > + "EventCode": "0x00000e",
> > + "BriefDescription": "L1 data cache write access"
> > + },
> > + {
> > + "EventName": "L1_DCACHE_WRITE_MISS",
> > + "EventCode": "0x00000f",
> > + "BriefDescription": "L1 data cache write miss"
> > + },
> > + {
> > + "EventName": "L2_CACHE_READ_ACCESS",
> > + "EventCode": "0x000010",
> > + "BriefDescription": "L2 cache read access"
> > + },
> > + {
> > + "EventName": "L2_CACHE_READ_MISS",
> > + "EventCode": "0x000011",
> > + "BriefDescription": "L2 cache read miss"
> > + },
> > + {
> > + "EventName": "L2_CACHE_WRITE_ACCESS",
> > + "EventCode": "0x000012",
> > + "BriefDescription": "L2 cache write access"
> > + },
> > + {
> > + "EventName": "L2_CACHE_WRITE_MISS",
> > + "EventCode": "0x000013",
> > + "BriefDescription": "L2 cache write miss"
> > + }
> > +]
> > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/firmware.json b/tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/firmware.json
> > new file mode 100644
> > index 000000000000..9b4a032186a7
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
> > @@ -0,0 +1,68 @@
> > +[
> > + {
> > + "ArchStdEvent": "FW_MISALIGNED_LOAD"
> > + },
> > + {
> > + "ArchStdEvent": "FW_MISALIGNED_STORE"
> > + },
> > + {
> > + "ArchStdEvent": "FW_ACCESS_LOAD"
> > + },
> > + {
> > + "ArchStdEvent": "FW_ACCESS_STORE"
> > + },
> > + {
> > + "ArchStdEvent": "FW_ILLEGAL_INSN"
> > + },
> > + {
> > + "ArchStdEvent": "FW_SET_TIMER"
> > + },
> > + {
> > + "ArchStdEvent": "FW_IPI_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_IPI_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_FENCE_I_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_FENCE_I_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_SFENCE_VMA_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
> > + },
> > + {
> > + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
> > + }
> > +]
> > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/instruction.json b/tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/instruction.json
> > new file mode 100644
> > index 000000000000..7f1649548177
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/instruction.json
> > @@ -0,0 +1,72 @@
> > +[
> > + {
> > + "EventName": "BR_COND_MIS_PRED",
> > + "EventCode": "0x000006",
> > + "BriefDescription": "Conditional branch mispredict"
> > + },
> > + {
> > + "EventName": "INST_BR_COND_MIS",
> > + "EventCode": "0x000007",
> > + "BriefDescription": "Conditional branch instruction"
> > + },
> > + {
> > + "EventName": "BR_INDIRECT_MIS_PRED",
> > + "EventCode": "0x000008",
> > + "BriefDescription": "Indirect branch mispredict"
> > + },
> > + {
> > + "EventName": "INST_BR_COND_MIS",
> > + "EventCode": "0x000009",
> > + "BriefDescription": "Indirect branch instruction"
> > + },
> > + {
> > + "EventName": "INST_STORE",
> > + "EventCode": "0x00000b",
> > + "BriefDescription": "Store instruction retired"
> > + },
> > + {
> > + "EventName": "INST_ALU",
> > + "EventCode": "0x00001d",
> > + "BriefDescription": "ALU instruction retired"
> > + },
> > + {
> > + "EventName": "INST_LOAD_SAVE",
> > + "EventCode": "0x00001e",
> > + "BriefDescription": "LOAD/Store instruction retired"
> > + },
> > + {
> > + "EventName": "INST_VECTOR",
> > + "EventCode": "0x00001f",
> > + "BriefDescription": "Vector instruction retired"
> > + },
> > + {
> > + "EventName": "INST_CSR_ACCESS",
> > + "EventCode": "0x000020",
> > + "BriefDescription": "CSR access instruction retired"
> > + },
> > + {
> > + "EventName": "INST_SYNC",
> > + "EventCode": "0x000021",
> > + "BriefDescription": "Sync instruction retired"
> > + },
> > + {
> > + "EventName": "INST_LOAD_SAVE_UNALIGNED",
> > + "EventCode": "0x000022",
> > + "BriefDescription": "Load/Store unaligned access instruction
> > retired"
> > + },
> > + {
> > + "EventName": "INST_ENV_CALL",
> > + "EventCode": "0x000025",
> > + "BriefDescription": "Environment call instruction retired"
> > + },
> > + {
> > + "EventName": "INST_LONGJUMP",
> > + "EventCode": "0x000026",
> > + "BriefDescription": "Long jump instruction retired (jump dist
> > over 8MB)"
> > + },
> > + {
> > + "EventName": "INST_FP",
> > + "EventCode": "0x00002a",
> > + "BriefDescription": "Float point instruction retired"
> > + }
> > +]
> > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/microarch.json b/tools/perf/pmu-events/arch/riscv/t-
> > head/c9xx/microarch.json
> > new file mode 100644
> > index 000000000000..073c1d085021
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
> > @@ -0,0 +1,67 @@
> > +[
> > + {
> > + "EventName": "LSU_SPEC_FAIL",
> > + "EventCode": "0x00000a",
> > + "BriefDescription": "LSU Spec Fail"
> > + },
> > + {
> > + "EventName": "RF_LAUNCH_FAIL",
> > + "EventCode": "0x000014",
> > + "BriefDescription": "Register file launch fail"
> > + },
> > + {
> > + "EventName": "RF_REG_LAUNCH",
> > + "EventCode": "0x000015",
> > + "BriefDescription": "Register file reg launch"
> > + },
> > + {
> > + "EventName": "RF_INSTRUCTION",
> > + "EventCode": "0x000016",
> > + "BriefDescription": "Register file instruction"
> > + },
> > + {
> > + "EventName": "LSU_STALL_CROSS_4K",
> > + "EventCode": "0x000017",
> > + "BriefDescription": "LSU stall with cross 4K access"
> > + },
> > + {
> > + "EventName": "LSU_STALL_OTHER",
> > + "EventCode": "0x000018",
> > + "BriefDescription": "LSU stall with other events"
> > + },
> > + {
> > + "EventName": "LSU_SQ_DISCARD",
> > + "EventCode": "0x000019",
> > + "BriefDescription": "LSU SQ discard"
> > + },
> > + {
> > + "EventName": "LSU_SQ_DISCARD_DATA",
> > + "EventCode": "0x00001a",
> > + "BriefDescription": "LSU SQ data discard"
> > + },
> > + {
> > + "EventName": "INT_NUMBER",
> > + "EventCode": "0x000023",
> > + "BriefDescription": "Interrupt number respond"
> > + },
> > + {
> > + "EventName": "INT_OFF_CYCLE",
> > + "EventCode": "0x000024",
> > + "BriefDescription": "Off cycle before interrupt arbitrating"
> > + },
> > + {
> > + "EventName": "STALLED_CYCLE_IFU",
> > + "EventCode": "0x000027",
> > + "BriefDescription": "Stall cycles of the instruction fetch unit"
> > + },
> > + {
> > + "EventName": "STALLED_CYCLE_IDU",
> > + "EventCode": "0x000028",
> > + "BriefDescription": "Stall cycles of the instruction decoding
> > unit and next-level pipeline unit"
> > + },
> > + {
> > + "EventName": "STALLED_CYCLE_SYNC",
> > + "EventCode": "0x000029",
> > + "BriefDescription": "Stalled cycle for sync instructions
> > (FENCE/FENCE.i/SFENCE/SYNC...)"
> > + }
> > +]
> > --
> > 2.40.1
> >
> >
> > _______________________________________________
> > linux-riscv mailing list
> > [email protected]
> > http://lists.infradead.org/mailman/listinfo/linux-riscv
>
> _______________________________________________
> linux-riscv mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-riscv
--
Regards,
Atish
On Tue, 2023-06-27 at 01:40 -0700, Atish Patra wrote:
> On Thu, May 18, 2023 at 2:09 AM Nikita Shubin
> <[email protected]> wrote:
> >
> > Hello Inochi Amaoto!
> >
> > Tested your latest patch on LicheeRV C906:
> >
> > linux $ git describe --tags
> > v6.4-rc2-1-g85a420ada3a8
> >
> > opensbi $ git describe --tags
> > v1.2-119-gdc1c7db
> >
> > stat_all_pmu.sh - PASSED
> >
> > Perf stat gives something:
> >
> > perf stat -e
> > data_tlb_miss,inst_tlb_miss,jtlb_miss,l1_dcache_read_acc
> > ess,l1_dcache_read_miss,l1_dcache_write_access,l1_dcache_write_miss
> > ,l1_
> > icache_ac
> > cess,l1_icache_miss -- sleep 1
> >
> > Performance counter stats for 'sleep 1':
> >
> > 9082 data_tlb_miss
> > 5604 inst_tlb_miss
> > 1790 jtlb_miss
> > 130207 l1_dcache_read_access
> > 3353 l1_dcache_read_miss
> > 80454 l1_dcache_write_access
> > 633 l1_dcache_write_miss
> > 639820 l1_icache_access
> > 14660 l1_icache_miss
> >
> > 1.009768750 seconds time elapsed
> >
> > 0.000000000 seconds user
> > 0.010388000 seconds sys
> >
> > perf record hangs
> >
> > licheerv # perf record
> > [ 432.015618] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
> > [perf:117]
> > [ 460.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 52s!
> > [perf:117]
> > [ 488.015616] watchdog: BUG: soft lockup - CPU#0 stuck for 78s!
> > [perf:117]
> > [ 516.015617] watchdog: BUG: soft lockup - CPU#0 stuck for 104s!
> > [perf:117]
> >
>
> Is it related to perf record or just random soft lockups you keep
> getting on this board ?
Clearly related to perf record (at least perf record triggers it),
didn't had time for deep investigation through. Was planning too look
into it in a week or so.
>
> > But that's not related to your patch anyway.
> >
> > I am strongly against using "c9xx" wildcard, i would prefer
> > declaring
> > them separate (especially taking in mind that c920 is c910 with
> > vector
> > - AFAIK), but that's up to Arnaldo to decide.
> >
> > Anyway:
> >
> > Tested-by: Nikita Shubin <[email protected]>
> >
> >
> > On Wed, 2023-05-17 at 15:12 +0800, Inochi Amaoto wrote:
> > > Add json file of T-HEAD C9xx series events.
> > >
> > > The event idx (raw value) is summary as following:
> > >
> > > event id range | support cpu
> > > 0x01 - 0x06 | c906,c910,c920
> > > 0x07 | c906
> > > 0x08 - 0x0a | c910,c920
> > > 0x0b - 0x0f | c906,c910,c920
> > > 0x10 - 0x1a | c910,c920
> > > 0x1b - 0x1c | c910,c920 (software defined for all >= 0x1b)
> > > 0x1d - 0x2a | c906
> > >
> > > The event ids are based on the public document of T-HEAD and
> > > cover
> > > the c9xx series.
> > >
> > > These events are the max that c9xx series support.
> > > Since T-HEAD let manufacturers decide whether events are usable,
> > > the final support of the perf events is determined by the pmu
> > > node
> > > of the soc dtb.
> > >
> > > Signed-off-by: Inochi Amaoto <[email protected]>
> > > ---
> > > Change from v2:
> > > 1. add C906 0x07 events to the instruction.json file
> > > 2. fix name for events 0x07 and 0x09 in instruction.json
> > >
> > > Example:
> > >
> > > This pmu node example can be used on sophgo sg2042 platform
> > > (c920)
> > > with
> > > mainline OpenSBI.
> > > It should also work on T-HEAD th1520.
> > >
> > > For the one use C906 core. Only event 0x01 - 0x07, 0xb - 0xf has
> > > known
> > > CSR mapping. The other events do not have known CSR mapping in
> > > document
> > > until now.
> > > This pmu node needs to be shorten to adopt c906
> > >
> > > pmu {
> > > compatible = "riscv,pmu";
> > > riscv,event-to-mhpmcounters =
> > > // event-start event-end a bitmap of all the
> > > MHPMCOUNTERx
> > > <0x00006 0x00006 0x00000400>,
> > > <0x00005 0x00005 0x00000800>,
> > > <0x10000 0x10000 0x00004000>,
> > > <0x10001 0x10001 0x00008000>,
> > > <0x10002 0x10002 0x00010000>,
> > > <0x10003 0x10003 0x00020000>,
> > > <0x10008 0x10008 0x00000008>,
> > > <0x10009 0x10009 0x00000010>,
> > > <0x10010 0x10010 0x00040000>,
> > > <0x10011 0x10011 0x00080000>,
> > > <0x10012 0x10012 0x00100000>,
> > > <0x10013 0x10013 0x00200000>,
> > > <0x10019 0x10019 0x00000040>,
> > > <0x10021 0x10021 0x00000020>;
> > > riscv,event-to-mhpmevent =
> > > // event-id event-selector
> > > /* mhpmevent3: L1I_READ_ACCESS */
> > > <0x10008 0x00000000 0x00000001>,
> > > /* mhpmevent4: L1I_READ_MISS */
> > > <0x10009 0x00000000 0x00000002>,
> > > /* mhpmevent5: ITLB_READ_MISS */
> > > <0x10021 0x00000000 0x00000003>,
> > > /* mhpmevent6: DTLB_READ_MISS */
> > > <0x10019 0x00000000 0x00000004>,
> > > /* mhpmevent10: PMU_HW_BRANCH_MISSES */
> > > <0x00006 0x00000000 0x00000008>,
> > > /* mhpmevent11: PMU_HW_BRANCH_INSTRUCTIONS */
> > > <0x00005 0x00000000 0x00000009>,
> > > /* mhpmevent14: L1D_READ_ACCESS */
> > > <0x10000 0x00000000 0x0000000c>,
> > > /* mhpmevent15: L1D_READ_MISS */
> > > <0x10001 0x00000000 0x0000000d>,
> > > /* mhpmevent16: L1D_WRITE_ACCESS */
> > > <0x10002 0x00000000 0x0000000e>,
> > > /* mhpmevent17: L1D_WRITE_MISS */
> > > <0x10003 0x00000000 0x0000000f>,
> > > /* mhpmevent18: LL_READ_ACCESS */
> > > <0x10010 0x00000000 0x00000010>,
> > > /* mhpmevent19: LL_READ_MISS */
> > > <0x10011 0x00000000 0x00000011>,
> > > /* mhpmevent20: LL_WRITE_ACCESS */
> > > <0x10012 0x00000000 0x00000012>,
> > > /* mhpmevent21: LL_WRITE_MISS */
> > > <0x10013 0x00000000 0x00000013>;
> > > riscv,raw-event-to-mhpmcounters =
> > > /* mhpmevent3: L1 ICache Access Counter */
> > > <0x00000000 0x00000001 0xffffffff 0xffffffff
> > > 0x00000008>,
> > > /* mhpmevent4: L1 ICache Miss Counter */
> > > <0x00000000 0x00000002 0xffffffff 0xffffffff
> > > 0x00000010>,
> > > /* mhpmevent5: I-UTLB Miss Counter */
> > > <0x00000000 0x00000003 0xffffffff 0xffffffff
> > > 0x00000020>,
> > > /* mhpmevent6: D-UTLB Miss Counter */
> > > <0x00000000 0x00000004 0xffffffff 0xffffffff
> > > 0x00000040>,
> > > /* mhpmevent7: JTLB Miss */
> > > <0x00000000 0x00000005 0xffffffff 0xffffffff
> > > 0x00000080>,
> > > /* mhpmevent8: Conditional Branch Mispredict */
> > > <0x00000000 0x00000006 0xffffffff 0xffffffff
> > > 0x00000100>,
> > > /* mhpmevent9: Conditional Branch Instruction
> > > Counter
> > > (reserved for c910)*/
> > > /* <0x00000000 0x00000007 0xffffffff 0xffffffff
> > > 0x00000200>, */
> > > /* mhpmevent10: Indirect Branch Mispredict
> > > Counter */
> > > <0x00000000 0x00000008 0xffffffff 0xffffffff
> > > 0x00000400>,
> > > /* mhpmevent11: Indirect Branch Instruction
> > > Counter
> > > */
> > > <0x00000000 0x00000009 0xffffffff 0xffffffff
> > > 0x00000800>,
> > > /* mhpmevent12: LSU Spec Fail */
> > > <0x00000000 0x0000000a 0xffffffff 0xffffffff
> > > 0x00001000>,
> > > /* mhpmevent13: Store Instruction */
> > > <0x00000000 0x0000000b 0xffffffff 0xffffffff
> > > 0x00002000>,
> > > /* mhpmevent14: L1 DCache read access Counter */
> > > <0x00000000 0x0000000c 0xffffffff 0xffffffff
> > > 0x00004000>,
> > > /* mhpmevent15: L1 DCache read miss Counter */
> > > <0x00000000 0x0000000d 0xffffffff 0xffffffff
> > > 0x00008000>,
> > > /* mhpmevent16: L1 DCache write access Counter */
> > > <0x00000000 0x0000000e 0xffffffff 0xffffffff
> > > 0x00010000>,
> > > /* mhpmevent17: L1 DCache write access Counter */
> > > <0x00000000 0x0000000f 0xffffffff 0xffffffff
> > > 0x00020000>,
> > > /* mhpmevent18: L2 Cache read access Counter */
> > > <0x00000000 0x00000010 0xffffffff 0xffffffff
> > > 0x00040000>,
> > > /* mhpmevent19: L2 Cache read miss Counter */
> > > <0x00000000 0x00000011 0xffffffff 0xffffffff
> > > 0x00080000>,
> > > /* mhpmevent20: L2 Cache write access Counter */
> > > <0x00000000 0x00000012 0xffffffff 0xffffffff
> > > 0x00100000>,
> > > /* mhpmevent21: L2 Cache write miss Counter */
> > > <0x00000000 0x00000013 0xffffffff 0xffffffff
> > > 0x00200000>,
> > > /* mhpmevent22: RF Launch Fail */
> > > <0x00000000 0x00000014 0xffffffff 0xffffffff
> > > 0x00400000>,
> > > /* mhpmevent23: RF Reg Launch Fail */
> > > <0x00000000 0x00000015 0xffffffff 0xffffffff
> > > 0x00800000>,
> > > /* mhpmevent24: RF Instruction */
> > > <0x00000000 0x00000016 0xffffffff 0xffffffff
> > > 0x01000000>,
> > > /* mhpmevent25: LSU Cross 4K Stall */
> > > <0x00000000 0x00000017 0xffffffff 0xffffffff
> > > 0x02000000>,
> > > /* mhpmevent26: LSU Other Stall */
> > > <0x00000000 0x00000018 0xffffffff 0xffffffff
> > > 0x04000000>,
> > > /* mhpmevent27: LSU SQ Discard */
> > > <0x00000000 0x00000019 0xffffffff 0xffffffff
> > > 0x08000000>,
> > > /* mhpmevent28: LSU SQ Data Discard */
> > > <0x00000000 0x0000001a 0xffffffff 0xffffffff
> > > 0x10000000>;
> > > };
> > >
> > > ---
> > > tools/perf/pmu-events/arch/riscv/mapfile.csv | 1 +
> > > .../arch/riscv/t-head/c9xx/cache.json | 67
> > > +++++++++++++++++
> > > .../arch/riscv/t-head/c9xx/firmware.json | 68
> > > ++++++++++++++++++
> > > .../arch/riscv/t-head/c9xx/instruction.json | 72
> > > +++++++++++++++++++
> > > .../arch/riscv/t-head/c9xx/microarch.json | 67
> > > +++++++++++++++++
> > > 5 files changed, 275 insertions(+)
> > > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/cache.json
> > > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/firmware.json
> > > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/instruction.json
> > > create mode 100644 tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/microarch.json
> > >
> > > diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > > b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > > index c61b3d6ef616..dd1d998a7ad6 100644
> > > --- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > > +++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> > > @@ -15,3 +15,4 @@
> > > #
> > > #MVENDORID-MARCHID-MIMPID,Version,Filename,EventType
> > > 0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
> > > +0x5b7-0x0-0x0,v1,t-head/c9xx,core
> > > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/cache.json
> > > b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> > > new file mode 100644
> > > index 000000000000..2c6e9a904a11
> > > --- /dev/null
> > > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/cache.json
> > > @@ -0,0 +1,67 @@
> > > +[
> > > + {
> > > + "EventName": "L1_ICACHE_ACCESS",
> > > + "EventCode": "0x000001",
> > > + "BriefDescription": "L1 instruction cache access"
> > > + },
> > > + {
> > > + "EventName": "L1_ICACHE_MISS",
> > > + "EventCode": "0x000002",
> > > + "BriefDescription": "L1 instruction cache miss"
> > > + },
> > > + {
> > > + "EventName": "INST_TLB_MISS",
> > > + "EventCode": "0x000003",
> > > + "BriefDescription": "Instruction TLB (I-UTLB) miss"
> > > + },
> > > + {
> > > + "EventName": "DATA_TLB_MISS",
> > > + "EventCode": "0x000004",
> > > + "BriefDescription": "Data TLB (D-UTLB) miss"
> > > + },
> > > + {
> > > + "EventName": "JTLB_MISS",
> > > + "EventCode": "0x000005",
> > > + "BriefDescription": "JTLB access miss"
> > > + },
> > > + {
> > > + "EventName": "L1_DCACHE_READ_ACCESS",
> > > + "EventCode": "0x00000c",
> > > + "BriefDescription": "L1 data cache read access"
> > > + },
> > > + {
> > > + "EventName": "L1_DCACHE_READ_MISS",
> > > + "EventCode": "0x00000d",
> > > + "BriefDescription": "L1 data cache read miss"
> > > + },
> > > + {
> > > + "EventName": "L1_DCACHE_WRITE_ACCESS",
> > > + "EventCode": "0x00000e",
> > > + "BriefDescription": "L1 data cache write access"
> > > + },
> > > + {
> > > + "EventName": "L1_DCACHE_WRITE_MISS",
> > > + "EventCode": "0x00000f",
> > > + "BriefDescription": "L1 data cache write miss"
> > > + },
> > > + {
> > > + "EventName": "L2_CACHE_READ_ACCESS",
> > > + "EventCode": "0x000010",
> > > + "BriefDescription": "L2 cache read access"
> > > + },
> > > + {
> > > + "EventName": "L2_CACHE_READ_MISS",
> > > + "EventCode": "0x000011",
> > > + "BriefDescription": "L2 cache read miss"
> > > + },
> > > + {
> > > + "EventName": "L2_CACHE_WRITE_ACCESS",
> > > + "EventCode": "0x000012",
> > > + "BriefDescription": "L2 cache write access"
> > > + },
> > > + {
> > > + "EventName": "L2_CACHE_WRITE_MISS",
> > > + "EventCode": "0x000013",
> > > + "BriefDescription": "L2 cache write miss"
> > > + }
> > > +]
> > > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/firmware.json b/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/firmware.json
> > > new file mode 100644
> > > index 000000000000..9b4a032186a7
> > > --- /dev/null
> > > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/firmware.json
> > > @@ -0,0 +1,68 @@
> > > +[
> > > + {
> > > + "ArchStdEvent": "FW_MISALIGNED_LOAD"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_MISALIGNED_STORE"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_ACCESS_LOAD"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_ACCESS_STORE"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_ILLEGAL_INSN"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_SET_TIMER"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_IPI_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_IPI_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_FENCE_I_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_FENCE_I_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_SFENCE_VMA_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
> > > + },
> > > + {
> > > + "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
> > > + }
> > > +]
> > > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/instruction.json b/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/instruction.json
> > > new file mode 100644
> > > index 000000000000..7f1649548177
> > > --- /dev/null
> > > +++ b/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/instruction.json
> > > @@ -0,0 +1,72 @@
> > > +[
> > > + {
> > > + "EventName": "BR_COND_MIS_PRED",
> > > + "EventCode": "0x000006",
> > > + "BriefDescription": "Conditional branch mispredict"
> > > + },
> > > + {
> > > + "EventName": "INST_BR_COND_MIS",
> > > + "EventCode": "0x000007",
> > > + "BriefDescription": "Conditional branch instruction"
> > > + },
> > > + {
> > > + "EventName": "BR_INDIRECT_MIS_PRED",
> > > + "EventCode": "0x000008",
> > > + "BriefDescription": "Indirect branch mispredict"
> > > + },
> > > + {
> > > + "EventName": "INST_BR_COND_MIS",
> > > + "EventCode": "0x000009",
> > > + "BriefDescription": "Indirect branch instruction"
> > > + },
> > > + {
> > > + "EventName": "INST_STORE",
> > > + "EventCode": "0x00000b",
> > > + "BriefDescription": "Store instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_ALU",
> > > + "EventCode": "0x00001d",
> > > + "BriefDescription": "ALU instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_LOAD_SAVE",
> > > + "EventCode": "0x00001e",
> > > + "BriefDescription": "LOAD/Store instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_VECTOR",
> > > + "EventCode": "0x00001f",
> > > + "BriefDescription": "Vector instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_CSR_ACCESS",
> > > + "EventCode": "0x000020",
> > > + "BriefDescription": "CSR access instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_SYNC",
> > > + "EventCode": "0x000021",
> > > + "BriefDescription": "Sync instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_LOAD_SAVE_UNALIGNED",
> > > + "EventCode": "0x000022",
> > > + "BriefDescription": "Load/Store unaligned access instruction
> > > retired"
> > > + },
> > > + {
> > > + "EventName": "INST_ENV_CALL",
> > > + "EventCode": "0x000025",
> > > + "BriefDescription": "Environment call instruction retired"
> > > + },
> > > + {
> > > + "EventName": "INST_LONGJUMP",
> > > + "EventCode": "0x000026",
> > > + "BriefDescription": "Long jump instruction retired (jump
> > > dist
> > > over 8MB)"
> > > + },
> > > + {
> > > + "EventName": "INST_FP",
> > > + "EventCode": "0x00002a",
> > > + "BriefDescription": "Float point instruction retired"
> > > + }
> > > +]
> > > diff --git a/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/microarch.json b/tools/perf/pmu-events/arch/riscv/t-
> > > head/c9xx/microarch.json
> > > new file mode 100644
> > > index 000000000000..073c1d085021
> > > --- /dev/null
> > > +++ b/tools/perf/pmu-events/arch/riscv/t-head/c9xx/microarch.json
> > > @@ -0,0 +1,67 @@
> > > +[
> > > + {
> > > + "EventName": "LSU_SPEC_FAIL",
> > > + "EventCode": "0x00000a",
> > > + "BriefDescription": "LSU Spec Fail"
> > > + },
> > > + {
> > > + "EventName": "RF_LAUNCH_FAIL",
> > > + "EventCode": "0x000014",
> > > + "BriefDescription": "Register file launch fail"
> > > + },
> > > + {
> > > + "EventName": "RF_REG_LAUNCH",
> > > + "EventCode": "0x000015",
> > > + "BriefDescription": "Register file reg launch"
> > > + },
> > > + {
> > > + "EventName": "RF_INSTRUCTION",
> > > + "EventCode": "0x000016",
> > > + "BriefDescription": "Register file instruction"
> > > + },
> > > + {
> > > + "EventName": "LSU_STALL_CROSS_4K",
> > > + "EventCode": "0x000017",
> > > + "BriefDescription": "LSU stall with cross 4K access"
> > > + },
> > > + {
> > > + "EventName": "LSU_STALL_OTHER",
> > > + "EventCode": "0x000018",
> > > + "BriefDescription": "LSU stall with other events"
> > > + },
> > > + {
> > > + "EventName": "LSU_SQ_DISCARD",
> > > + "EventCode": "0x000019",
> > > + "BriefDescription": "LSU SQ discard"
> > > + },
> > > + {
> > > + "EventName": "LSU_SQ_DISCARD_DATA",
> > > + "EventCode": "0x00001a",
> > > + "BriefDescription": "LSU SQ data discard"
> > > + },
> > > + {
> > > + "EventName": "INT_NUMBER",
> > > + "EventCode": "0x000023",
> > > + "BriefDescription": "Interrupt number respond"
> > > + },
> > > + {
> > > + "EventName": "INT_OFF_CYCLE",
> > > + "EventCode": "0x000024",
> > > + "BriefDescription": "Off cycle before interrupt arbitrating"
> > > + },
> > > + {
> > > + "EventName": "STALLED_CYCLE_IFU",
> > > + "EventCode": "0x000027",
> > > + "BriefDescription": "Stall cycles of the instruction fetch
> > > unit"
> > > + },
> > > + {
> > > + "EventName": "STALLED_CYCLE_IDU",
> > > + "EventCode": "0x000028",
> > > + "BriefDescription": "Stall cycles of the instruction
> > > decoding
> > > unit and next-level pipeline unit"
> > > + },
> > > + {
> > > + "EventName": "STALLED_CYCLE_SYNC",
> > > + "EventCode": "0x000029",
> > > + "BriefDescription": "Stalled cycle for sync instructions
> > > (FENCE/FENCE.i/SFENCE/SYNC...)"
> > > + }
> > > +]
> > > --
> > > 2.40.1
> > >
> > >
> > > _______________________________________________
> > > linux-riscv mailing list
> > > [email protected]
> > > http://lists.infradead.org/mailman/listinfo/linux-riscv
> >
> > _______________________________________________
> > linux-riscv mailing list
> > [email protected]
> > http://lists.infradead.org/mailman/listinfo/linux-riscv
>
>
>