linux-kernel - [PATCH v4] Mark xe driver as BROKEN if kernel page size is not 4kB

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Message-ID: <20250802024152.3021-1-Simon.Richter@hogyros.de>
Date: Sat,  2 Aug 2025 11:40:36 +0900
From: Simon Richter <Simon.Richter@...yros.de>
To: Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
	intel-xe@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Cc: Simon Richter <Simon.Richter@...yros.de>,
	stable@...r.kernel.org
Subject: [PATCH v4] Mark xe driver as BROKEN if kernel page size is not 4kB

This driver, for the time being, assumes that the kernel page size is 4kB,
so it fails on loong64 and aarch64 with 16kB pages, and ppc64el with 64kB
pages.

Signed-off-by: Simon Richter <Simon.Richter@...yros.de>
Cc: stable@...r.kernel.org
---
 drivers/gpu/drm/xe/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/xe/Kconfig b/drivers/gpu/drm/xe/Kconfig
index 2bb2bc052120..714d5702dfd7 100644
--- a/drivers/gpu/drm/xe/Kconfig
+++ b/drivers/gpu/drm/xe/Kconfig
@@ -5,6 +5,7 @@ config DRM_XE
 	depends on KUNIT || !KUNIT
 	depends on INTEL_VSEC || !INTEL_VSEC
 	depends on X86_PLATFORM_DEVICES || !(X86 && ACPI)
+	depends on PAGE_SIZE_4KB || COMPILE_TEST || BROKEN
 	select INTERVAL_TREE
 	# we need shmfs for the swappable backing store, and in particular
 	# the shmem_readpage() which depends upon tmpfs
-- 
2.47.2