From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
We need to select IOMMU_SUPPORT as well, otherwise we can be left
with:
CONFIG_IOMMU_IOVA=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_INTEL_IOMMU=y
which complains:
"WARNING: unmet direct dependencies detected for INTEL_IOMMU"
and fails to link:
ld: drivers/iommu/intel-iommu.o: in function `free_all_cpu_cached_iovas':
/home/vsyrjala/src/linux/build_skl/../drivers/iommu/intel-iommu.c:4466: undefined reference to `free_cpu_cached_iovas'
...
Or do we maybe want something like:
select <iommu thing> if IOMMU_SUPPORT
instead?
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Fixes: 02229acb3926 ("drm/i915: Force compilation with intel-iommu for CI validation")
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/Kconfig.debug | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/i915/Kconfig.debug b/drivers/gpu/drm/i915/Kconfig.debug
index c5c00cad6ba1..d940280df6b9 100644
--- a/drivers/gpu/drm/i915/Kconfig.debug
+++ b/drivers/gpu/drm/i915/Kconfig.debug
@@ -22,6 +22,7 @@ config DRM_I915_DEBUG
depends on DRM_I915
select PCI_MSI
select IOMMU_API
+ select IOMMU_SUPPORT
select IOMMU_IOVA
select NEED_DMA_MAP_STATE
select DMAR_TABLE
--
2.21.0
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