diff options
| -rw-r--r-- | drivers/iommu/apple-dart.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c index ee05f4824bfa..8b6b0cdba9b5 100644 --- a/drivers/iommu/apple-dart.c +++ b/drivers/iommu/apple-dart.c @@ -368,12 +368,14 @@ apple_dart_t8020_hw_stream_command(struct apple_dart_stream_map *stream_map, u32 command) { unsigned long flags; - int ret; + int ret, i; u32 command_reg; spin_lock_irqsave(&stream_map->dart->lock, flags); - writel(stream_map->sidmap[0], stream_map->dart->regs + DART_T8020_STREAM_SELECT); + for (i = 0; i < BITS_TO_U32(stream_map->dart->num_streams); i++) + writel(stream_map->sidmap[i], + stream_map->dart->regs + DART_T8020_STREAM_SELECT + 4 * i); writel(command, stream_map->dart->regs + DART_T8020_STREAM_COMMAND); ret = readl_poll_timeout_atomic( |