If CONFIG_IOMMU_API is n, build fails:
vers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c:37:9: error: implicit declaration of function dev_iommu_fwspec_get; did you mean iommu_fwspec_free? [-Werror=implicit-function-declaration]
spec = dev_iommu_fwspec_get(device->dev);
^~~~~~~~~~~~~~~~~~~~
iommu_fwspec_free
drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c:37:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
spec = dev_iommu_fwspec_get(device->dev);
^
drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c:39:17: error: struct iommu_fwspec has no member named ids
u32 sid = spec->ids[0] & 0xffff;
Seletc IOMMU_API under config DRM_NOUVEAU to fix this.
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
---
drivers/gpu/drm/nouveau/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig
index 9c990266..ce03693 100644
--- a/drivers/gpu/drm/nouveau/Kconfig
+++ b/drivers/gpu/drm/nouveau/Kconfig
@@ -2,6 +2,7 @@
config DRM_NOUVEAU
tristate "Nouveau (NVIDIA) cards"
depends on DRM && PCI && MMU
+ select IOMMU_API
select FW_LOADER
select DRM_KMS_HELPER
select DRM_TTM
--
2.7.4
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