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I sometimes see ("unknown type") in the result and it was because it
didn't check the type of stack variables properly during the instruction
tracking. The stack can carry constant values (without type info) and
if the target instruction is accessing the stack location, it resulted
in the "unknown type".
Maybe we could pick one of integer types for the constant, but it
doesn't really mean anything useful. Let's just drop the stack slot if
it doesn't have a valid type info.
Here's an example how it got the unknown type.
Note that 0xffffff48 = -0xb8.
-----------------------------------------------------------
find data type for 0xffffff48(reg6) at ...
CU for ...
frame base: cfa=0 fbreg=6
scope: [2/2] (die:11cb97f)
bb: [37 - 3a]
var [37] reg15 type='int' size=0x4 (die:0x1180633)
bb: [40 - 4b]
mov [40] imm=0x1 -> reg13
var [45] reg8 type='sigset_t*' size=0x8 (die:0x11a39ee)
mov [45] imm=0x1 -> reg2 <--- here reg2 has a constant
bb: [215 - 237]
mov [218] reg2 -> -0xb8(stack) constant <--- and save it to the stack
mov [225] reg13 -> -0xc4(stack) constant
call [22f] find_task_by_vgpid
call [22f] return -> reg0 type='struct task_struct*' size=0x8 (die:0x11881e8)
bb: [5c8 - 5cf]
bb: [2fb - 302]
mov [2fb] -0xc4(stack) -> reg13 constant
bb: [13b - 14d]
mov [143] 0xd50(reg3) -> reg5 type='struct task_struct*' size=0x8 (die:0xa31f3c)
bb: [153 - 153]
chk [153] reg6 offset=0xffffff48 ok=0 kind=0 fbreg <--- access here
found by insn track: 0xffffff48(reg6) type-offset=0
type='G<EF>^K<F6><AF>U' size=0 (die:0xffffffffffffffff)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240502060011.1838090-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The instruction tracking should be the same for the both registers.
Just do it once and compare the result with multi regs as with the
previous patches.
Then we don't need to call find_data_type_block() separately for each
reg.
Let's remove the 'reg' argument from the relevant functions.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240502060011.1838090-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The following instruction pattern is used to access a global variable.
mov $0x231c0, %rax
movsql %edi, %rcx
mov -0x7dc94ae0(,%rcx,8), %rcx
cmpl $0x0, 0xa60(%rcx,%rax,1) <<<--- here
The first instruction set the address of the per-cpu variable (here, it
is 'runqueues' of type 'struct rq'). The second instruction seems like
a cpu number of the per-cpu base. The third instruction get the base
offset of per-cpu area for that cpu. The last instruction compares the
value of the per-cpu variable at the offset of 0xa60.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240502060011.1838090-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Like per-cpu base offset array, sometimes it accesses the global
variable directly using the offset. Allow this type of instructions as
long as it finds a global variable for the address.
movslq %edi, %rcx
mov -0x7dc94ae0(,%rcx,8), %rcx <<<--- here
As %rcx has a valid type (i.e. array index) from the first instruction,
it will be checked by the first case in check_matching_type(). But as
it's not a pointer type, the match will fail. But in this case, it
should check if it accesses the kernel global array variable.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240502060011.1838090-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Currently it looks up global variables from the current CU using address
and name. But it sometimes fails to find a variable as the variable can
come from a different CU - but it's still strange it failed to find a
declaration for some reason.
Anyway, it can collect all global variables from all CU once and then
lookup them later on. This slightly improves the success rate of my
test data set.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240502060011.1838090-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This function is to search all global variables in the CU. We want to
have the list of global variables at once and match them later.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240502060011.1838090-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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We can't default to doing parallel tests as there are tests that compete
for the same resources and thus clash, for instance tests that put in
place 'perf probe' probes, that clean the probes without regard to other
tests needs, ARM64 coresight tests, Intel PT ones, etc.
So reintroduce --p/--parallel and make -S/--sequential the default.
We need to come up with infrastructure that state which tests can't run
in parallel because they need exclusive access to some resource,
something as simple as "probes" that would then avoid 'perf probe' tests
from running while other such test is running, or make the tests more
resilient, till then we can't use parallel mode as default.
While at it, document all these options in the 'perf test' man page.
Reported-by: Adrian Hunter <adrian.hunter@intel.com>
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reported-by: James Clark <james.clark@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/Ziwm18BqIn_vc1vn@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in this cset:
3c7a8e190bc58081 ("uapi: introduce uapi-friendly macros for GENMASK")
That just causes perf to rebuild. Its just some macros going to an uapi
header that we now have to grab a copy into tools/ as well.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/linux/bits.h include/linux/bits.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/lkml/ZiwJsFOBez0MS4r9@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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mitigation changes
To pick the changes from:
95a6ccbdc7199a14 ("x86/bhi: Mitigate KVM by default")
ec9404e40e8f3642 ("x86/bhi: Add BHI mitigation knob")
be482ff9500999f5 ("x86/bhi: Enumerate Branch History Injection (BHI) bug")
0f4a837615ff925b ("x86/bhi: Define SPEC_CTRL_BHI_DIS_S")
7390db8aea0d64e9 ("x86/bhi: Add support for clearing branch history at syscall entry")
This causes these perf files to be rebuilt and brings some X86_FEATURE
that will be used when updating the copies of
tools/arch/x86/lib/mem{cpy,set}_64.S with the kernel sources:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/ZirIx4kPtJwGFZS0@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The loop in hists__find_annotations() never set the 'nd' pointer to NULL
and it makes stdio output repeating the last element forever. I think
it doesn't set to NULL for TUI to prevent it from exiting unexpectedly.
But it should just set on stdio mode.
Fixes: d001c7a7f4736743 ("perf annotate-data: Add hist_entry__annotate_data_tui()")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240423020643.740029-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Memory sanitizer lacks an interceptor for scandirat, reporting all
memory it allocates as uninitialized. Memory sanitizer has a scandir
interceptor so use the fallback function in this case. This allows
'perf test' to run under memory sanitizer.
Additional notes from Ian on running in this mode:
Note, as msan needs to instrument memory allocations libraries need to
be compiled with it. I lacked the msan built libraries and so built
with:
```
$ make -C tools/perf O=/tmp/perf DEBUG=1 EXTRA_CFLAGS="-O0 -g
-fno-omit-frame-pointer -fsanitize=memory
-fsanitize-memory-track-origins" CC=clang CXX=clang++ HOSTCC=clang
NO_LIBTRACEEVENT=1 NO_LIBELF=1 BUILD_BPF_SKEL=0 NO_LIBPFM=1
```
oh, I disabled libbpf here as the bpf system call also lacks msan interceptors.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240320163244.1287780-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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MemorySanitizer discovered instances where the instruction op value was
not assigned.:
WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x5581c00a76b3 in intel_pt_sample_flags tools/perf/util/intel-pt.c:1527:17
Uninitialized value was stored to memory at
#0 0x5581c005ddf8 in intel_pt_walk_insn tools/perf/util/intel-pt-decoder/intel-pt-decoder.c:1256:25
The op value is used to set branch flags for branch instructions
encountered when walking the code, so fix by setting op to
INTEL_PT_OP_OTHER in other cases.
Fixes: 4c761d805bb2d2ea ("perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type")
Reported-by: Ian Rogers <irogers@google.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Closes: https://lore.kernel.org/linux-perf-users/20240320162619.1272015-1-irogers@google.com/
Link: https://lore.kernel.org/r/20240326083223.10883-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Fix comment misspellings
Signed-off-by: Howard Chu <howardchu95@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240425060427.1800663-1-howardchu95@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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dso__disassemble_filename() tries to get the filename for objdump (or
capstone) using build-id. But I found sometimes it didn't disassemble
some functions.
It turned out that those functions belong to a DSO which has no binary
type set. It seems it sets the binary type for some special files only
- like kernel (kallsyms or kcore) or BPF images. And there's a logic to
skip dso with DSO_BINARY_TYPE__NOT_FOUND.
As it's checked the build-id cache link, it should set the binary type
as DSO_BINARY_TYPE__BUILD_ID_CACHE.
Fixes: 873a83731f1cc85c ("perf annotate: Skip DSOs not found")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240425005157.1104789-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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I found some cases that capstone failed to disassemble. Probably my
capstone is an old version but anyway there's a chance it can fail. And
then it silently stopped in the middle. In my case, it didn't
understand "RDPKRU" instruction.
Let's check if the capstone disassemble reached the end of the function
and fallback to objdump if not.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240425005157.1104789-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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'perf report' TUI
As it removed the sample accounting for code when no symbol sort key is
given for 'perf report' TUI, it might not have allocated the
'struct annotated_source' yet. Let's check if it's NULL first.
Fixes: 6cdd977ec24e1538 ("perf report: Do not collect sample histogram unnecessarily")
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240424230015.1054013-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add a basic 'perf annotate' test:
$ ./perf test annotate -vv
76: perf annotate basic tests:
--- start ---
test child forked, pid 846989
fbcd0-fbd55 l noploop
perf does have symbol 'noploop'
Basic perf annotate test
: 0 0xfbcd0 <noploop>:
0.00 : fbcd0: pushq %rbp
0.00 : fbcd1: movq %rsp, %rbp
0.00 : fbcd4: pushq %r12
0.00 : fbcd6: pushq %rbx
0.00 : fbcd7: movl $1, %ebx
0.00 : fbcdc: subq $0x10, %rsp
0.00 : fbce0: movq %fs:0x28, %rax
0.00 : fbce9: movq %rax, -0x18(%rbp)
0.00 : fbced: xorl %eax, %eax
0.00 : fbcef: testl %edi, %edi
0.00 : fbcf1: jle 0xfbd04
0.00 : fbcf3: movq (%rsi), %rdi
0.00 : fbcf6: movl $0xa, %edx
0.00 : fbcfb: xorl %esi, %esi
0.00 : fbcfd: callq 0x41920
0.00 : fbd02: movl %eax, %ebx
0.00 : fbd04: leaq -0x7b(%rip), %r12 # fbc90 <sighandler>
0.00 : fbd0b: movl $2, %edi
0.00 : fbd10: movq %r12, %rsi
0.00 : fbd13: callq 0x40a00
0.00 : fbd18: movl $0xe, %edi
0.00 : fbd1d: movq %r12, %rsi
0.00 : fbd20: callq 0x40a00
0.00 : fbd25: movl %ebx, %edi
0.00 : fbd27: callq 0x407c0
0.10 : fbd2c: movl 0x89785e(%rip), %eax # 993590 <done>
0.00 : fbd32: testl %eax, %eax
99.90 : fbd34: je 0xfbd2c
0.00 : fbd36: movq -0x18(%rbp), %rax
0.00 : fbd3a: subq %fs:0x28, %rax
0.00 : fbd43: jne 0xfbd50
0.00 : fbd45: addq $0x10, %rsp
0.00 : fbd49: xorl %eax, %eax
0.00 : fbd4b: popq %rbx
0.00 : fbd4c: popq %r12
0.00 : fbd4e: popq %rbp
0.00 : fbd4f: retq
0.00 : fbd50: callq 0x407e0
0.00 : fbcd0: pushq %rbp
0.00 : fbcd1: movq %rsp, %rbp
0.00 : fbcd4: pushq %r12
0.00 : fbcd0: push %rbp
0.00 : fbcd1: mov %rsp,%rbp
0.00 : fbcd4: push %r12
Basic annotate test [Success]
---- end(0) ----
76: perf annotate basic tests : Ok
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240424001231.849972-1-namhyung@kernel.org
[ Improved a bit the error messages ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add comments. Pass ownership of the event name to save on a strdup.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-17-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add comments. Ensure leader->group_name is freed before overwriting
it.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-16-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Moves 352 bytes from .data to .data.rel.ro.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-15-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Use a struct/bitmap rather than a copied string from lexer.
In lexer give improved error message when too many precise flags are
given or repeated modifiers.
Before:
$ perf stat -e 'cycles:kuk' true
event syntax error: 'cycles:kuk'
\___ Bad modifier
...
$ perf stat -e 'cycles:pppp' true
event syntax error: 'cycles:pppp'
\___ Bad modifier
...
$ perf stat -e '{instructions:p,cycles:pp}:pp' -a true
event syntax error: '..cycles:pp}:pp'
\___ Bad modifier
...
After:
$ perf stat -e 'cycles:kuk' true
event syntax error: 'cycles:kuk'
\___ Duplicate modifier 'k' (kernel)
...
$ perf stat -e 'cycles:pppp' true
event syntax error: 'cycles:pppp'
\___ Maximum precise value is 3
...
$ perf stat -e '{instructions:p,cycles:pp}:pp' true
event syntax error: '..cycles:pp}:pp'
\___ Maximum combined precise value is 3, adding precision to "cycles:pp"
...
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-14-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Inline parse_events_evlist_error that is only used in
parse_events_error. Modify parse_events_error to not report a parser
error unless errors haven't already been reported. Make it clearer
that the latter case only happens for unrecognized input.
Before:
$ perf stat -e 'cycles/period=99999999999999999999/' true
event syntax error: 'cycles/period=99999999999999999999/'
\___ parser error
event syntax error: '..les/period=99999999999999999999/'
\___ Bad base 10 number "99999999999999999999"
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
$ perf stat -e 'cycles:xyz' true
event syntax error: 'cycles:xyz'
\___ parser error
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
After:
$ perf stat -e 'cycles/period=99999999999999999999/xyz' true
event syntax error: '..les/period=99999999999999999999/xyz'
\___ Bad base 10 number "99999999999999999999"
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
$ perf stat -e 'cycles:xyz' true
event syntax error: 'cycles:xyz'
\___ Unrecognized input
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-13-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Use the error handler from the parse_state to give a more informative
error message.
Before:
$ perf stat -e 'cycles/period=99999999999999999999/' true
event syntax error: 'cycles/period=99999999999999999999/'
\___ parser error
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
After:
$ perf stat -e 'cycles/period=99999999999999999999/' true
event syntax error: 'cycles/period=99999999999999999999/'
\___ parser error
event syntax error: '..les/period=99999999999999999999/'
\___ Bad base 10 number "99999999999999999999"
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-12-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
The helper function just wraps a splice and free. Making the free
inline removes a comment, so then it just wraps a splice which we can
make inline too.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-11-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
It was requested that RISC-V be able to add events to the perf tool so
the PMU driver didn't need to map legacy events to config encodings:
https://lore.kernel.org/lkml/20240217005738.3744121-1-atishp@rivosinc.com/
This change makes the priority of events specified without a PMU the
same as those specified with a PMU, namely sysfs and JSON events are
checked first before using the legacy encoding.
The hw_term is made more generic as a hardware_event that encodes a
pair of string and int value, allowing parse_events_multi_pmu_add to
fall back on a known encoding when the sysfs/JSON adding fails for
core events. As this covers PE_VALUE_SYM_HW, that token is removed and
related code simplified.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-10-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Allow the term list to be const so that other functions can pass const
term lists. Add const as necessary to called functions.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Avoid duplicate logic for name_or_raw and PE_TERM_HW by having a rule
to turn PE_TERM_HW into a name_or_raw.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-8-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Prior behavior is to not look for legacy cache names in sysfs/JSON and
to create events on all core PMUs. New behavior is to look for
sysfs/JSON events first on all PMUs, for core PMUs add a legacy event
if the sysfs/JSON event isn't present.
This is done so that there is consistency with how event names in
terms are handled and their prioritization of sysfs/JSON over
legacy. It may make sense to use a legacy cache event name as an event
name on a non-core PMU so we should allow it.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Switch from "cache-references" to "branches" in test as Intel has a
sysfs event for "cache-references" and changing the priority for sysfs
over legacy causes the test to fail.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move all implementation to pmu code. Don't allocate a fnmatch wildcard
pattern, matching ignoring the suffix already handles this, and only
use fnmatch if the given PMU name has a '*' in it.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
In parse_events_add_pmu, delay copying the list of terms until it is
known the list contains terms.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Avoid passing the name of a PMU then finding it again, just directly
pass the PMU. parse_events_multi_pmu_add_or_add_pmu() is the only version
that needs to find a PMU, so move the find there. Remove the error
message as parse_events_multi_pmu_add_or_add_pmu will given an error at
the end when a name isn't either a PMU name or event name. Without the
error message being created the location in the input parameter (loc)
can be removed.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Factor out the case of an event or PMU name followed by a slash based
term list. This is with a view to sharing the code with new legacy
hardware parsing. Use early return to reduce indentation in the code.
Make parse_events_add_pmu static now it doesn't need sharing with
parse-events.y.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Beeman Strong <beeman@rivosinc.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240416061533.921723-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add a Python script to run a perf script command multiple times in
parallel, using perf script options --cpu and --time so that each job
processes a different chunk of the data.
Extend perf script tests to test also the new script.
The script supports the use of normal 'perf script' options like
--dlfilter and --script, so that the benefit of running parallel jobs
naturally extends to them also. In addition, a command can be provided
(refer --pipe-to option) to pipe standard output to a custom command.
Refer to the script's own help text at the end of the patch for more
details.
The script is useful for Intel PT traces, that can be efficiently
decoded by 'perf script' when split by CPU and/or time ranges. Running
jobs in parallel can decrease the overall decoding time.
Committer testing:
Ian reported that shellcheck found some issues, I installed it as there
are no warnings about it not being available, but when available it
fails the build with:
TEST /tmp/build/perf-tools-next/tests/shell/script.sh.shellcheck_log
CC /tmp/build/perf-tools-next/util/header.o
In tests/shell/script.sh line 20:
rm -rf "${temp_dir}/"*
^-------------^ SC2115 (warning): Use "${var:?}" to ensure this never expands to /* .
In tests/shell/script.sh line 83:
output1_dir="${temp_dir}/output1"
^---------^ SC2034 (warning): output1_dir appears unused. Verify use (or export if used externally).
In tests/shell/script.sh line 84:
output2_dir="${temp_dir}/output2"
^---------^ SC2034 (warning): output2_dir appears unused. Verify use (or export if used externally).
In tests/shell/script.sh line 86:
python3 "${pp}" -o "${output_dir}" --jobs 4 --verbose -- perf script -i "${perf_data}"
^-----------^ SC2154 (warning): output_dir is referenced but not assigned (did you mean 'output1_dir'?).
For more information:
https://www.shellcheck.net/wiki/SC2034 -- output1_dir appears unused. Verif...
https://www.shellcheck.net/wiki/SC2115 -- Use "${var:?}" to ensure this nev...
https://www.shellcheck.net/wiki/SC2154 -- output_dir is referenced but not ...
Did these fixes:
- rm -rf "${temp_dir}/"*
+ rm -rf "${temp_dir:?}/"*
And:
@@ -83,8 +83,8 @@ test_parallel_perf()
output1_dir="${temp_dir}/output1"
output2_dir="${temp_dir}/output2"
perf record -o "${perf_data}" --sample-cpu uname
- python3 "${pp}" -o "${output_dir}" --jobs 4 --verbose -- perf script -i "${perf_data}"
- python3 "${pp}" -o "${output_dir}" --jobs 4 --verbose --per-cpu -- perf script -i "${perf_data}"
+ python3 "${pp}" -o "${output1_dir}" --jobs 4 --verbose -- perf script -i "${perf_data}"
+ python3 "${pp}" -o "${output2_dir}" --jobs 4 --verbose --per-cpu -- perf script -i "${perf_data}"
After that:
root@number:~# perf test -vv "perf script tests"
97: perf script tests:
--- start ---
test child forked, pid 4084139
DB test
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.032 MB /tmp/perf-test-script.T4MJDr0L6J/perf.data (7 samples) ]
<SNIP>
DB test [Success]
parallel-perf test
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.034 MB /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data (7 samples) ]
Starting: perf script --time=,91898.301878499 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --time=91898.301878500,91898.301905999 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --time=91898.301906000,91898.301933499 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --time=91898.301933500, -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --time=91898.301878500,91898.301905999 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --time=91898.301906000,91898.301933499 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 4 jobs: 2 completed, 2 running
Finished: perf script --time=,91898.301878499 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --time=91898.301933500, -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 4 jobs: 4 completed, 0 running
All jobs finished successfully
parallel-perf.py done
Starting: perf script --cpu=0 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=1 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=2 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=3 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=0 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=1 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=2 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=3 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 4 completed, 0 running
Starting: perf script --cpu=4 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=5 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=6 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=7 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=4 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=5 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=6 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=7 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 8 completed, 0 running
Starting: perf script --cpu=8 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=9 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=10 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=11 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=8 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=9 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=10 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=11 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 12 completed, 0 running
Starting: perf script --cpu=12 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=13 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=14 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=15 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=12 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=13 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=14 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=15 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 16 completed, 0 running
Starting: perf script --cpu=16 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=17 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=18 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=19 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=16 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=17 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=18 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=19 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 20 completed, 0 running
Starting: perf script --cpu=20 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=21 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=22 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=23 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=20 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=21 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=22 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=23 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 24 completed, 0 running
Starting: perf script --cpu=24 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=25 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=26 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Starting: perf script --cpu=27 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=25 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=26 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
Finished: perf script --cpu=27 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 27 completed, 1 running
Finished: perf script --cpu=24 -i /tmp/perf-test-script.T4MJDr0L6J/pp-perf.data
There are 28 jobs: 28 completed, 0 running
All jobs finished successfully
parallel-perf.py done
parallel-perf test [Success]
--- Cleaning up ---
---- end(0) ----
97: perf script tests : Ok
root@number:~#
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240423133248.10206-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The tools/lib/rbtree.c code came from the kernel, removing the
EXPORT_SYMBOL() that make sense only there, unfortunately it is not
being checked with tools/perf/check_headers.sh, will try to remedy this,
till then pick the improvements from:
b0687c1119b4e8c8 ("lib/rbtree: use '+' instead of '|' for setting color.")
That I noticed by doing:
diff -u tools/lib/rbtree.c lib/rbtree.c
diff -u tools/include/linux/rbtree_augmented.h include/linux/rbtree_augmented.h
There is one other cases, but lets pick it in separate patches.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Noah Goldstein <goldstein.w.n@gmail.com>
Link: https://lore.kernel.org/lkml/ZigZzeFoukzRKG1Q@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Before:
root@x1:~# perf test 76
76: SPDX-License-Identifier: GPL-2.0 : Ok
root@x1:~#
After:
root@x1:~# perf test 76
76: Add 'perf probe's, list and remove them. : Ok
root@x1:~#
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Veronika Molnarova <vmolnaro@redhat.com>
Link: https://lore.kernel.org/lkml/ZigRDKUGkcDqD-yW@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes from these csets:
be482ff9500999f5 ("x86/bhi: Enumerate Branch History Injection (BHI) bug")
0f4a837615ff925b ("x86/bhi: Define SPEC_CTRL_BHI_DIS_S")
That cause no changes to tooling:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > x86_msr.before
$ objdump -dS /tmp/build/perf-tools-next/util/amd-sample-raw.o > amd-sample-raw.o.before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ make -C tools/perf O=/tmp/build/perf-tools-next
<SNIP>
CC /tmp/build/perf-tools-next/trace/beauty/tracepoints/x86_msr.o
<SNIP>
CC /tmp/build/perf-tools-next/util/amd-sample-raw.o
<SNIP>
$ objdump -dS /tmp/build/perf-tools-next/util/amd-sample-raw.o > amd-sample-raw.o.after
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > x86_msr.after
$ diff -u x86_msr.before x86_msr.after
$ diff -u amd-sample-raw.o.before amd-sample-raw.o.after
Just silences this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/ZifCnEZFx5MZQuIW@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To get the changes in:
2855c2a7820bc819 ("vhost-vdpa: change ioctl # for VDPA_GET_VRING_SIZE")
1496c47065f9f841 ("vhost-vdpa: uapi to support reporting per vq size")
To pick up these changes and support them:
$ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before
$ cp include/uapi/linux/vhost.h tools/perf/trace/beauty/include/uapi/linux/vhost.h
$ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after
$ diff -u before after
--- before 2024-04-22 13:39:37.185674799 -0300
+++ after 2024-04-22 13:39:52.043344784 -0300
@@ -50,5 +50,6 @@
[0x7F] = "VDPA_GET_VRING_DESC_GROUP",
[0x80] = "VDPA_GET_VQS_COUNT",
[0x81] = "VDPA_GET_GROUP_NUM",
+ [0x82] = "VDPA_GET_VRING_SIZE",
[0x8] = "NEW_WORKER",
};
$
For instance, see how those 'cmd' ioctl arguments get translated, now
VDPA_GET_VRING_SIZE will be as well:
# perf trace -a -e ioctl --max-events=10
0.000 ( 0.011 ms): pipewire/2261 ioctl(fd: 60, cmd: SNDRV_PCM_HWSYNC, arg: 0x1) = 0
21.353 ( 0.014 ms): pipewire/2261 ioctl(fd: 60, cmd: SNDRV_PCM_HWSYNC, arg: 0x1) = 0
25.766 ( 0.014 ms): gnome-shell/2196 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffe4a22c740) = 0
25.845 ( 0.034 ms): gnome-shel:cs0/2212 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7fd43915dc70) = 0
25.916 ( 0.011 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffe4a22c8a0) = 0
25.941 ( 0.025 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ATOMIC, arg: 0x7ffe4a22c840) = 0
32.915 ( 0.009 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_RMFB, arg: 0x7ffe4a22cf9c) = 0
42.522 ( 0.013 ms): gnome-shell/2196 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffe4a22c740) = 0
42.579 ( 0.031 ms): gnome-shel:cs0/2212 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7fd43915dc70) = 0
42.644 ( 0.010 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffe4a22c8a0) = 0
#
This addresses this perf tools build warning:
diff -u tools/perf/trace/beauty/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
But this specific process, usually boring, this time around catch a
problem, namely the addition of VDPA_GET_VRING_SIZE used an ioctl number
already taken, which went on unnoticed and only got caught when the
tools/perf/trace/beauty/vhost_virtio_ioctl.sh script was run as part of
the perf tools process of updating the tools copies of system headers it
uses for creating id->string tables that, well, broke the perf tools
build because there were multiple initializations in the strings table
for the 0x80 entry...
I'm adding here a link to the discussion, that is lacking in the fix for
the reported problem, and a quote from one of the developers involved:
"Thanks a lot for taking care of this! So given the header is actually
buggy pls hang on to this change until I merge the fix for the header
(you were CC'd on the patch). It's great we have this redundancy which
allowed us to catch the bug in time, and many thanks to Namhyung Kim for
reporting the issue!"
This is here as a hint for anyone thinking about ways to automate
checking these issues in a more automated way... ;-)
Link: https://lore.kernel.org/lkml/ 20240402172151-mutt-send-email-mst@kernel.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zhu Lingshan <lingshan.zhu@intel.com>
Link: https://lore.kernel.org/lkml/ZiaW-csEZLKK48BE@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
To pick up fixes sent via perf-tools, by Namhyung Kim.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver fixes from Greg KH:
"Here are some small char/misc and other driver fixes for 6.9-rc5.
Included in here are the following:
- binder driver fix for reported problem
- speakup crash fix
- mei driver fixes for reported problems
- comdei driver fix
- interconnect driver fixes
- rtsx driver fix
- peci.h kernel doc fix
All of these have been in linux-next for over a week with no reported
problems"
* tag 'char-misc-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
peci: linux/peci.h: fix Excess kernel-doc description warning
binder: check offset alignment in binder_get_object()
comedi: vmk80xx: fix incomplete endpoint checking
mei: vsc: Unregister interrupt handler for system suspend
Revert "mei: vsc: Call wake_up() in the threaded IRQ handler"
misc: rtsx: Fix rts5264 driver status incorrect when card removed
mei: me: disable RPL-S on SPS and IGN firmwares
speakup: Avoid crash on very long word
interconnect: Don't access req_list while it's being manipulated
interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull kernfs bugfix and documentation update from Greg KH:
"Here are two changes for 6.9-rc5 that deal with "driver core" stuff,
that do the following:
- sysfs reference leak fix
- embargoed-hardware-issues.rst update for Power
Both of these have been in linux-next for over a week with no reported
issues"
* tag 'driver-core-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Documentation: embargoed-hardware-issues.rst: Add myself for Power
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.9-rc5 that
resolve a bunch of reported problems. Included in here are:
- MAINTAINERS and .mailmap update for Richard Genoud
- serial core regression fixes from 6.9-rc1 changes
- pci id cleanups
- serial core crash fix
- stm32 driver fixes
- 8250 driver fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: stm32: Reset .throttled state in .startup()
serial: stm32: Return IRQ_NONE in the ISR if no handling happend
serial: core: Fix missing shutdown and startup for serial base port
serial: core: Clearing the circular buffer before NULLifying it
MAINTAINERS: mailmap: update Richard Genoud's email address
serial/pmac_zilog: Remove flawed mitigation for rx irq flood
serial: 8250_pci: Remove redundant PCI IDs
serial: core: Fix regression when runtime PM is not enabled
serial: mxs-auart: add spinlock around changing cts state
serial: 8250_dw: Revert: Do not reclock if already at correct rate
serial: 8250_lpc18xx: disable clks on error in probe()
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|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt driver fixes from Greg KH:
"Here are some small USB and Thunderbolt driver fixes for 6.9-rc5.
Included in here are:
- MAINTAINER file update for invalid email address
- usb-serial device id updates
- typec driver fixes
- thunderbolt / usb4 driver fixes
- usb core shutdown fixes
- cdc-wdm driver revert for reported problem in -rc1
- usb gadget driver fixes
- xhci driver fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'usb-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
USB: serial: option: add Telit FN920C04 rmnet compositions
usb: dwc3: ep0: Don't reset resource alloc flag
Revert "usb: cdc-wdm: close race between read and workqueue"
USB: serial: option: add Rolling RW101-GL and RW135-GL support
USB: serial: option: add Lonsung U8300/U9300 product
USB: serial: option: add support for Fibocom FM650/FG650
USB: serial: option: support Quectel EM060K sub-models
USB: serial: option: add Fibocom FM135-GL variants
usb: misc: onboard_usb_hub: Disable the USB hub clock on failure
thunderbolt: Avoid notify PM core about runtime PM resume
thunderbolt: Fix wake configurations after device unplug
usb: dwc2: host: Fix dereference issue in DDMA completion flow.
usb: typec: mux: it5205: Fix ChipID value typo
MAINTAINERS: Drop Li Yang as their email address stopped working
usb: gadget: fsl: Initialize udc before using it
usb: Disable USB3 LPM at shutdown
usb: gadget: f_ncm: Fix UAF ncm object at re-bind after usb ep transport error
usb: typec: tcpm: Correct the PDO counting in pd_set
usb: gadget: functionfs: Wait for fences before enqueueing DMABUF
usb: gadget: functionfs: Fix inverted DMA fence direction
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
- Add a missing memory barrier in the concurrency ID mm switching
* tag 'sched_urgent_for_v6.9_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Add missing memory barrier in switch_mm_cid
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix CPU feature dependencies of GFNI, VAES, and VPCLMULQDQ
- Print the correct error code when FRED reports a bad event type
- Add a FRED-specific INT80 handler without the special dances that
need to happen in the current one
- Enable the using-the-default-return-thunk-but-you-should-not warning
only on configs which actually enable those special return thunks
- Check the proper feature flags when selecting BHI retpoline
mitigation
* tag 'x86_urgent_for_v6.9_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpufeatures: Fix dependencies for GFNI, VAES, and VPCLMULQDQ
x86/fred: Fix incorrect error code printout in fred_bad_type()
x86/fred: Fix INT80 emulation for FRED
x86/retpolines: Enable the default thunk warning only on relevant configs
x86/bugs: Fix BHI retpoline check
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|
Pull block fixes from Jens Axboe:
"Just two minor fixes that should go into the 6.9 kernel release, one
fixing a regression with partition scanning errors, and one fixing a
WARN_ON() that can get triggered if we race with a timer"
* tag 'block-6.9-20240420' of git://git.kernel.dk/linux:
blk-iocost: do not WARN if iocg was already offlined
block: propagate partition scanning errors to the BLKRRPART ioctl
|
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Pull email address update from James Bottomley:
"My IBM email has stopped working, so update to a working email
address"
* tag 'email' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
MAINTAINERS: update to working email address
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Pull kvm fixes from Paolo Bonzini:
"This is a bit on the large side, mostly due to two changes:
- Changes to disable some broken PMU virtualization (see below for
details under "x86 PMU")
- Clean up SVM's enter/exit assembly code so that it can be compiled
without OBJECT_FILES_NON_STANDARD. This fixes a warning "Unpatched
return thunk in use. This should not happen!" when running KVM
selftests.
Everything else is small bugfixes and selftest changes:
- Fix a mostly benign bug in the gfn_to_pfn_cache infrastructure
where KVM would allow userspace to refresh the cache with a bogus
GPA. The bug has existed for quite some time, but was exposed by a
new sanity check added in 6.9 (to ensure a cache is either
GPA-based or HVA-based).
- Drop an unused param from gfn_to_pfn_cache_invalidate_start() that
got left behind during a 6.9 cleanup.
- Fix a math goof in x86's hugepage logic for
KVM_SET_MEMORY_ATTRIBUTES that results in an array overflow
(detected by KASAN).
- Fix a bug where KVM incorrectly clears root_role.direct when
userspace sets guest CPUID.
- Fix a dirty logging bug in the where KVM fails to write-protect
SPTEs used by a nested guest, if KVM is using Page-Modification
Logging and the nested hypervisor is NOT using EPT.
x86 PMU:
- Drop support for virtualizing adaptive PEBS, as KVM's
implementation is architecturally broken without an obvious/easy
path forward, and because exposing adaptive PEBS can leak host LBRs
to the guest, i.e. can leak host kernel addresses to the guest.
- Set the enable bits for general purpose counters in
PERF_GLOBAL_CTRL at RESET time, as done by both Intel and AMD
processors.
- Disable LBR virtualization on CPUs that don't support LBR
callstacks, as KVM unconditionally uses
PERF_SAMPLE_BRANCH_CALL_STACK when creating the perf event, and
would fail on such CPUs.
Tests:
- Fix a flaw in the max_guest_memory selftest that results in it
exhausting the supply of ucall structures when run with more than
256 vCPUs.
- Mark KVM_MEM_READONLY as supported for RISC-V in
set_memory_region_test"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits)
KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()
KVM: selftests: Add coverage of EPT-disabled to vmx_dirty_log_test
KVM: x86/mmu: Fix and clarify comments about clearing D-bit vs. write-protecting
KVM: x86/mmu: Remove function comments above clear_dirty_{gfn_range,pt_masked}()
KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
KVM: x86/mmu: Precisely invalidate MMU root_role during CPUID update
KVM: VMX: Disable LBR virtualization if the CPU doesn't support LBR callstacks
perf/x86/intel: Expose existence of callback support to KVM
KVM: VMX: Snapshot LBR capabilities during module initialization
KVM: x86/pmu: Do not mask LVTPC when handling a PMI on AMD platforms
KVM: x86: Snapshot if a vCPU's vendor model is AMD vs. Intel compatible
KVM: x86: Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD
KVM: SVM: Create a stack frame in __svm_sev_es_vcpu_run()
KVM: SVM: Save/restore args across SEV-ES VMRUN via host save area
KVM: SVM: Save/restore non-volatile GPRs in SEV-ES VMRUN via host save area
KVM: SVM: Clobber RAX instead of RBX when discarding spec_ctrl_intercepted
KVM: SVM: Drop 32-bit "support" from __svm_sev_es_vcpu_run()
KVM: SVM: Wrap __svm_sev_es_vcpu_run() with #ifdef CONFIG_KVM_AMD_SEV
KVM: SVM: Create a stack frame in __svm_vcpu_run() for unwinding
KVM: SVM: Remove a useless zeroing of allocated memory
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix wireguard loading failure on pre-Power10 due to Power10 crypto
routines
- Fix papr-vpd selftest failure due to missing variable initialization
- Avoid unnecessary get/put in spapr_tce_platform_iommu_attach_dev()
Thanks to Geetika Moolchandani, Jason Gunthorpe, Michal Suchánek, Nathan
Lynch, and Shivaprasad G Bhat.
* tag 'powerpc-6.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc/papr-vpd: Fix missing variable initialization
powerpc/crypto/chacha-p10: Fix failure on non Power10
powerpc/iommu: Refactor spapr_tce_platform_iommu_attach_dev()
|
