[PATCH 3/7] dma-mapping: allow using the global coherent pool for !ARM

From: Christoph Hellwig
Date: Mon Jul 12 2021 - 02:32:18 EST


Switch an ifdef so that the global coherent pool is initialized for
any architecture that selects the DMA_GLOBAL_POOL symbol insted of
hardcoding ARM.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Tested-by: Dillon Min <dillon.minfei@xxxxxxxxx>
---
kernel/dma/coherent.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c
index 794e76b03b34..67b126afac5a 100644
--- a/kernel/dma/coherent.c
+++ b/kernel/dma/coherent.c
@@ -361,7 +361,9 @@ static int __init rmem_dma_setup(struct reserved_mem *rmem)
pr_err("Reserved memory: regions without no-map are not yet supported\n");
return -EINVAL;
}
+#endif

+#ifdef CONFIG_DMA_GLOBAL_POOL
if (of_get_flat_dt_prop(node, "linux,dma-default", NULL)) {
WARN(dma_reserved_default_memory,
"Reserved memory: region for default DMA coherent area is redefined\n");
--
2.30.2