Am 20.02.24 um 18:43 schrieb Erhard Furtner:
On Tue, 20 Feb 2024 14:50:04 +0100
Christian König <christian.koenig@xxxxxxx> wrote:
Yeah and that's probably the problem. The test is not supposed to be
compiled and executed on bare metal, but rather just as unit test
through user mode Linux.
We probably don't check that correctly in the kconfig for some reason.
Can you provide your .config file?
Here's my v6.8-rc5 .config attached.
Thanks for that.
As long as nobody comes up with an approach how to run the test even
when other drivers want to interact with TTM the attached patch is my
best idea.
It basically disabled compiling the TTM tests as long as neither
compiling for UML or COMPILE_TEST are set.
Opinions?
Thanks,
Christian.
Regards,
Erhard
From a1dcd1ce632bf6c38765e3cc006b6d92c4e70b38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Wed, 21 Feb 2024 08:18:59 +0100
Subject: [PATCH] drm/ttm/tests: depend on UML || COMPILE_TEST
MIME-Version: 1.0
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At least the device test requires that no other driver using TTM is
loaded. So make those unit tests depend on UML || COMPILE_TEST to
prevent people from trying them on bare metal.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/Kconfig | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 2520db0b776e..c7edba18a6f0 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -199,7 +199,7 @@ config DRM_TTM
config DRM_TTM_KUNIT_TEST
tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS
default n
- depends on DRM && KUNIT && MMU
+ depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST)
select DRM_TTM
select DRM_EXPORT_FOR_TESTS if m
select DRM_KUNIT_TEST_HELPERS
@@ -207,7 +207,8 @@ config DRM_TTM_KUNIT_TEST
help
Enables unit tests for TTM, a GPU memory manager subsystem used
to manage memory buffers. This option is mostly useful for kernel
- developers.
+ developers. It depends on (UML || COMPILE_TEST) since no other driver
+ which uses TTM can be loaded while running the tests.
If in doubt, say "N".
--
2.34.1
