linux-kernel - [PATCH v2 14/14] selftests/nolibc: tinyconfig: add support for 32/64-bit powerpc

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Message-Id: <15b47c6901f79a22b985a53efeae71dc7b172a5f.1689759351.git.falcon@tinylab.org>
Date:   Wed, 19 Jul 2023 21:32:46 +0800
From:   Zhangjin Wu <falcon@...ylab.org>
To:     w@....eu
Cc:     thomas@...ch.de, arnd@...db.de, falcon@...ylab.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v2 14/14] selftests/nolibc: tinyconfig: add support for 32/64-bit powerpc

Firstly, add extra config files for powerpc, powerpc64le and powerpc64.

Second, QEMU_TIMEOUT is configured as 60 seconds for powerpc to allow
quit qemu-system-ppc even if poweroff fails. In normal host machine, ~20
seconds may be enough for boot+test+poweroff, but 60 seconds is used
here to gurantee it at least finish even in a very slow host machine or
the host machine is too busy. Both powerpc64le and powerpc64 can
poweroff normally, no need to configure QEMU_TIMEOUT for them.

It is able to use tinyconfig as the minimal config target to speed up
the run target of powerpc:

    $ for arch in powerpc powerpc64 powerpc64le; do \
        rm -rf $PWD/kernel-$arch; \
        mkdir -p $PWD/kernel-$arch; \
        make tinyconfig run XARCH=$arch O=$PWD/kernel-$arch | grep status ; \
      done

rerun with architecture specific run.out (for later report):

    $ for arch in powerpc powerpc64 powerpc64le; do \
        mkdir -p $PWD/kernel-$arch; \
        make rerun XARCH=$arch O=$PWD/kernel-$arch RUN_OUT=$PWD/run.$arch.out | grep status ; \
      done

report:

    $ for arch in powerpc powerpc64 powerpc64le; do \
        make report RUN_OUT=$PWD/run.$arch.out | grep status ; \
      done

Signed-off-by: Zhangjin Wu <falcon@...ylab.org>
---
 tools/testing/selftests/nolibc/Makefile                   | 1 +
 tools/testing/selftests/nolibc/configs/powerpc.config     | 3 +++
 tools/testing/selftests/nolibc/configs/powerpc64.config   | 3 +++
 tools/testing/selftests/nolibc/configs/powerpc64le.config | 4 ++++
 4 files changed, 11 insertions(+)
 create mode 100644 tools/testing/selftests/nolibc/configs/powerpc64.config
 create mode 100644 tools/testing/selftests/nolibc/configs/powerpc64le.config

diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index f42782fa78a9..b01346323e35 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -103,6 +103,7 @@ QEMU_ARGS_loongarch  = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=N
 QEMU_ARGS            = $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_EXTRA)
 
 # QEMU_TIMEOUT: some architectures can not poweroff normally, especially for tinyconfig
+QEMU_TIMEOUT_powerpc     = 60
 QEMU_TIMEOUT             = $(QEMU_TIMEOUT_$(XARCH))
 
 # OUTPUT is only set when run from the main makefile, otherwise
diff --git a/tools/testing/selftests/nolibc/configs/powerpc.config b/tools/testing/selftests/nolibc/configs/powerpc.config
index b1975f8253f7..29123cee14c4 100644
--- a/tools/testing/selftests/nolibc/configs/powerpc.config
+++ b/tools/testing/selftests/nolibc/configs/powerpc.config
@@ -1,3 +1,6 @@
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_PPC_PMAC=y
+CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
 CONFIG_SERIAL_PMACZILOG=y
 CONFIG_SERIAL_PMACZILOG_TTYS=y
 CONFIG_SERIAL_PMACZILOG_CONSOLE=y
diff --git a/tools/testing/selftests/nolibc/configs/powerpc64.config b/tools/testing/selftests/nolibc/configs/powerpc64.config
new file mode 100644
index 000000000000..4e17f0cdb99f
--- /dev/null
+++ b/tools/testing/selftests/nolibc/configs/powerpc64.config
@@ -0,0 +1,3 @@
+CONFIG_PPC64=y
+CONFIG_PPC_POWERNV=y
+CONFIG_HVC_OPAL=y
diff --git a/tools/testing/selftests/nolibc/configs/powerpc64le.config b/tools/testing/selftests/nolibc/configs/powerpc64le.config
new file mode 100644
index 000000000000..713b227f506f
--- /dev/null
+++ b/tools/testing/selftests/nolibc/configs/powerpc64le.config
@@ -0,0 +1,4 @@
+CONFIG_PPC64=y
+CONFIG_PPC_POWERNV=y
+CONFIG_HVC_OPAL=y
+CONFIG_CPU_LITTLE_ENDIAN=y
-- 
2.25.1