From: Atish Patra <atish.patra@xxxxxxx>
[ Upstream commit cbd34f4bb37d62d8a027f54205bff07e73340da4 ]
Currently, we perform some memory init functions in paging init. But,
that will be an issue for NUMA support where DT needs to be flattened
before numa initialization and memblock_present can only be called
after numa initialization.
Move memory initialization related functions to a separate function.
Signed-off-by: Atish Patra <atish.patra@xxxxxxx>
Reviewed-by: Greentime Hu <greentime.hu@xxxxxxxxxx>
Reviewed-by: Anup Patel <anup@xxxxxxxxxxxxxx>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>
Stable-dep-of: 50e63dd8ed92 ("riscv: fix reserved memory setup")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/riscv/include/asm/pgtable.h | 1 +
arch/riscv/kernel/setup.c | 1 +
arch/riscv/mm/init.c | 6 +++++-
3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 73e8b5e5bb65..b16304fdf448 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -470,6 +470,7 @@ extern void *dtb_early_va;
extern uintptr_t dtb_early_pa;
void setup_bootmem(void);
void paging_init(void);
+void misc_mem_init(void);
#define FIRST_USER_ADDRESS 0
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index cc85858f7fe8..57e1ab036edf 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -96,6 +96,7 @@ void __init setup_arch(char **cmdline_p)
else
pr_err("No DTB found in kernel mappings\n");
#endif
+ misc_mem_init();
#ifdef CONFIG_SWIOTLB
swiotlb_init(1);
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 56314e82f051..b6ab6a18dc1a 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -669,8 +669,12 @@ static void __init resource_init(void)
void __init paging_init(void)
{
setup_vm_final();
- sparse_init();
setup_zero_page();
+}
+
+void __init misc_mem_init(void)
+{
+ sparse_init();
zone_sizes_init();
resource_init();
}
--
2.35.1
