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/Linux-v4.19/drivers/virtio/
Dvirtio_mmio.c113 struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); in vm_get_features() local
116 writel(1, vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES_SEL); in vm_get_features()
117 features = readl(vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES); in vm_get_features()
120 writel(0, vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES_SEL); in vm_get_features()
121 features |= readl(vm_dev->base + VIRTIO_MMIO_DEVICE_FEATURES); in vm_get_features()
128 struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); in vm_finalize_features() local
134 if (vm_dev->version == 2 && in vm_finalize_features()
140 writel(1, vm_dev->base + VIRTIO_MMIO_DRIVER_FEATURES_SEL); in vm_finalize_features()
142 vm_dev->base + VIRTIO_MMIO_DRIVER_FEATURES); in vm_finalize_features()
144 writel(0, vm_dev->base + VIRTIO_MMIO_DRIVER_FEATURES_SEL); in vm_finalize_features()
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