* [PATCH] kselftest/arm64: Install signal handlers before output in FP stress tests
@ 2022-09-06 22:00 Mark Brown
2022-09-07 17:57 ` Catalin Marinas
0 siblings, 1 reply; 2+ messages in thread
From: Mark Brown @ 2022-09-06 22:00 UTC (permalink / raw)
To: Catalin Marinas, Will Deacon, Shuah Khan
Cc: linux-arm-kernel, linux-kselftest, Mark Brown
To interface more robustly with other processes install the signal handers
in the floating point stress tests before we produce any output, this
means that a parent process can know that if it has seen any output from
the test then the test is ready to handle incoming signals.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
Resending with signoff added, was missed on previous postings.
.../testing/selftests/arm64/fp/fpsimd-test.S | 48 +++++++++----------
tools/testing/selftests/arm64/fp/sve-test.S | 48 +++++++++----------
tools/testing/selftests/arm64/fp/za-test.S | 48 +++++++++----------
3 files changed, 72 insertions(+), 72 deletions(-)
diff --git a/tools/testing/selftests/arm64/fp/fpsimd-test.S b/tools/testing/selftests/arm64/fp/fpsimd-test.S
index f0f92192351a..918d04885a33 100644
--- a/tools/testing/selftests/arm64/fp/fpsimd-test.S
+++ b/tools/testing/selftests/arm64/fp/fpsimd-test.S
@@ -216,6 +216,30 @@ endfunction
.globl _start
function _start
_start:
+ mov x23, #0 // signal count
+
+ mov w0, #SIGINT
+ adr x1, terminate_handler
+ mov w2, #SA_SIGINFO
+ bl setsignal
+
+ mov w0, #SIGTERM
+ adr x1, terminate_handler
+ mov w2, #SA_SIGINFO
+ bl setsignal
+
+ mov w0, #SIGUSR1
+ adr x1, irritator_handler
+ mov w2, #SA_SIGINFO
+ orr w2, w2, #SA_NODEFER
+ bl setsignal
+
+ mov w0, #SIGUSR2
+ adr x1, tickle_handler
+ mov w2, #SA_SIGINFO
+ orr w2, w2, #SA_NODEFER
+ bl setsignal
+
// Sanity-check and report the vector length
mov x19, #128
@@ -246,30 +270,6 @@ _start:
mov x0, x20
bl putdecn
- mov x23, #0 // Irritation signal count
-
- mov w0, #SIGINT
- adr x1, terminate_handler
- mov w2, #SA_SIGINFO
- bl setsignal
-
- mov w0, #SIGTERM
- adr x1, terminate_handler
- mov w2, #SA_SIGINFO
- bl setsignal
-
- mov w0, #SIGUSR1
- adr x1, irritator_handler
- mov w2, #SA_SIGINFO
- orr w2, w2, #SA_NODEFER
- bl setsignal
-
- mov w0, #SIGUSR2
- adr x1, tickle_handler
- mov w2, #SA_SIGINFO
- orr w2, w2, #SA_NODEFER
- bl setsignal
-
mov x22, #0 // generation number, increments per iteration
.Ltest_loop:
diff --git a/tools/testing/selftests/arm64/fp/sve-test.S b/tools/testing/selftests/arm64/fp/sve-test.S
index 79c56e6c5b23..2a18cb4c528c 100644
--- a/tools/testing/selftests/arm64/fp/sve-test.S
+++ b/tools/testing/selftests/arm64/fp/sve-test.S
@@ -379,6 +379,30 @@ endfunction
.globl _start
function _start
_start:
+ mov x23, #0 // Irritation signal count
+
+ mov w0, #SIGINT
+ adr x1, terminate_handler
+ mov w2, #SA_SIGINFO
+ bl setsignal
+
+ mov w0, #SIGTERM
+ adr x1, terminate_handler
+ mov w2, #SA_SIGINFO
+ bl setsignal
+
+ mov w0, #SIGUSR1
+ adr x1, irritator_handler
+ mov w2, #SA_SIGINFO
+ orr w2, w2, #SA_NODEFER
+ bl setsignal
+
+ mov w0, #SIGUSR2
+ adr x1, tickle_handler
+ mov w2, #SA_SIGINFO
+ orr w2, w2, #SA_NODEFER
+ bl setsignal
+
#ifdef SSVE
puts "Streaming mode "
smstart_sm
@@ -414,30 +438,6 @@ _start:
mov x0, x20
bl putdecn
- mov x23, #0 // Irritation signal count
-
- mov w0, #SIGINT
- adr x1, terminate_handler
- mov w2, #SA_SIGINFO
- bl setsignal
-
- mov w0, #SIGTERM
- adr x1, terminate_handler
- mov w2, #SA_SIGINFO
- bl setsignal
-
- mov w0, #SIGUSR1
- adr x1, irritator_handler
- mov w2, #SA_SIGINFO
- orr w2, w2, #SA_NODEFER
- bl setsignal
-
- mov w0, #SIGUSR2
- adr x1, tickle_handler
- mov w2, #SA_SIGINFO
- orr w2, w2, #SA_NODEFER
- bl setsignal
-
#ifdef SSVE
smstart_sm // syscalls will have exited streaming mode
#endif
diff --git a/tools/testing/selftests/arm64/fp/za-test.S b/tools/testing/selftests/arm64/fp/za-test.S
index 901839107205..53c54af65704 100644
--- a/tools/testing/selftests/arm64/fp/za-test.S
+++ b/tools/testing/selftests/arm64/fp/za-test.S
@@ -232,6 +232,30 @@ endfunction
.globl _start
function _start
_start:
+ mov x23, #0 // signal count
+
+ mov w0, #SIGINT
+ adr x1, terminate_handler
+ mov w2, #SA_SIGINFO
+ bl setsignal
+
+ mov w0, #SIGTERM
+ adr x1, terminate_handler
+ mov w2, #SA_SIGINFO
+ bl setsignal
+
+ mov w0, #SIGUSR1
+ adr x1, irritator_handler
+ mov w2, #SA_SIGINFO
+ orr w2, w2, #SA_NODEFER
+ bl setsignal
+
+ mov w0, #SIGUSR2
+ adr x1, tickle_handler
+ mov w2, #SA_SIGINFO
+ orr w2, w2, #SA_NODEFER
+ bl setsignal
+
puts "Streaming mode "
smstart_za
@@ -264,30 +288,6 @@ _start:
mov x0, x20
bl putdecn
- mov x23, #0 // Irritation signal count
-
- mov w0, #SIGINT
- adr x1, terminate_handler
- mov w2, #SA_SIGINFO
- bl setsignal
-
- mov w0, #SIGTERM
- adr x1, terminate_handler
- mov w2, #SA_SIGINFO
- bl setsignal
-
- mov w0, #SIGUSR1
- adr x1, irritator_handler
- mov w2, #SA_SIGINFO
- orr w2, w2, #SA_NODEFER
- bl setsignal
-
- mov w0, #SIGUSR2
- adr x1, tickle_handler
- mov w2, #SA_SIGINFO
- orr w2, w2, #SA_NODEFER
- bl setsignal
-
mov x22, #0 // generation number, increments per iteration
.Ltest_loop:
rdsvl 0, 8
--
2.30.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] kselftest/arm64: Install signal handlers before output in FP stress tests
2022-09-06 22:00 [PATCH] kselftest/arm64: Install signal handlers before output in FP stress tests Mark Brown
@ 2022-09-07 17:57 ` Catalin Marinas
0 siblings, 0 replies; 2+ messages in thread
From: Catalin Marinas @ 2022-09-07 17:57 UTC (permalink / raw)
To: Mark Brown, Will Deacon, Shuah Khan; +Cc: linux-arm-kernel, linux-kselftest
On Tue, 6 Sep 2022 23:00:56 +0100, Mark Brown wrote:
> To interface more robustly with other processes install the signal handers
> in the floating point stress tests before we produce any output, this
> means that a parent process can know that if it has seen any output from
> the test then the test is ready to handle incoming signals.
>
>
Applied to arm64 (for-next/kselftest), thanks!
[1/1] kselftest/arm64: Install signal handlers before output in FP stress tests
https://git.kernel.org/arm64/c/d47d8a5e21fc
--
Catalin
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