RISC-V: Use swiotlb on RV64 only

Only RV64 supports swiotlb. On RV32, it don't select the SWIOTLB. Signed-off-by: Zong Li <zong@andestech.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
mariux64 · Oct 23, 2018 · 51858aa · 51858aa
1 parent 7f47c73
commit 51858aa
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
@@ -227,7 +227,10 @@ void __init setup_arch(char **cmdline_p)
 	setup_bootmem();
 	paging_init();
 	unflatten_device_tree();
+
+#ifdef CONFIG_SWIOTLB
 	swiotlb_init(1);
+#endif
 
 #ifdef CONFIG_SMP
 	setup_smp();