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authorDamien Le Moal2020-02-12 19:34:24 +0900
committerPalmer Dabbelt2020-03-04 10:38:17 -0800
commitaa2734202acc506d09c8e641db4da161f902df27 (patch)
tree70a20d2fbc3959883cff145d8e097a2c96ba0b98
parentaad15bc85c189261b0554a7dc8e053641dd4025c (diff)
riscv: Force flat memory model with no-mmu
Compilation errors trigger if ARCH_SPARSEMEM_ENABLE is enabled for a nommu kernel. Since the sparsemem model does not make sense anyway for the nommu case, do not allow selecting this option to always use the flatmem model. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
-rw-r--r--arch/riscv/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 73f029eae0cc..1a3b5a5276be 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -121,6 +121,7 @@ config ARCH_FLATMEM_ENABLE
config ARCH_SPARSEMEM_ENABLE
def_bool y
+ depends on MMU
select SPARSEMEM_VMEMMAP_ENABLE
config ARCH_SELECT_MEMORY_MODEL