This is a note to let you know that I've just added the patch titled
drm/panfrost: fix GENERIC_ATOMIC64 dependency
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-panfrost-fix-generic_atomic64-dependency.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bc3f41510cbca9389e819e67f3ebc67222b2e2e3
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date: Tue Jan 17 17:44:43 2023 +0100
drm/panfrost: fix GENERIC_ATOMIC64 dependency
[ Upstream commit 6437a549ae178a3f5a5c03e983f291ebcdc2bbc7 ]
On ARMv5 and earlier, a randconfig build can still run into
WARNING: unmet direct dependencies detected for IOMMU_IO_PGTABLE_LPAE
Depends on [n]: IOMMU_SUPPORT [=y] && (ARM [=y] || ARM64 || COMPILE_TEST [=y]) && !GENERIC_ATOMIC64 [=y]
Selected by [y]:
- DRM_PANFROST [=y] && HAS_IOMEM [=y] && DRM [=y] && (ARM [=y] || ARM64 || COMPILE_TEST [=y] && !GENERIC_ATOMIC64 [=y]) && MMU [=y]
Rework the dependencies to always require a working cmpxchg64.
Fixes: db594ba3fcf9 ("drm/panfrost: depend on !GENERIC_ATOMIC64 when using COMPILE_TEST")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Steven Price <steven.price@xxxxxxx>
Signed-off-by: Steven Price <steven.price@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117164456.1591901-1-arnd@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/panfrost/Kconfig b/drivers/gpu/drm/panfrost/Kconfig
index 86cdc0ce79e6..77f4d32e5204 100644
--- a/drivers/gpu/drm/panfrost/Kconfig
+++ b/drivers/gpu/drm/panfrost/Kconfig
@@ -3,7 +3,8 @@
config DRM_PANFROST
tristate "Panfrost (DRM support for ARM Mali Midgard/Bifrost GPUs)"
depends on DRM
- depends on ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
+ depends on ARM || ARM64 || COMPILE_TEST
+ depends on !GENERIC_ATOMIC64 # for IOMMU_IO_PGTABLE_LPAE
depends on MMU
select DRM_SCHED
select IOMMU_SUPPORT
