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authorJason Yan <yanaijie@huawei.com>2019-09-20 17:45:36 +0800
committerMichael Ellerman <mpe@ellerman.id.au>2019-11-13 19:27:28 +1100
commit4ed47dbefa299d7b36944f6d4001ee83612dd680 (patch)
treef132954cac4eef841702d6aab80413d9002cc455 /arch/powerpc/mm
parentpowerpc: unify definition of M_IF_NEEDED (diff)
downloadlinux-dev-4ed47dbefa299d7b36944f6d4001ee83612dd680.tar.xz
linux-dev-4ed47dbefa299d7b36944f6d4001ee83612dd680.zip
powerpc: move memstart_addr and kernstart_addr to init-common.c
These two variables are both defined in init_32.c and init_64.c. Move them to init-common.c and make them __ro_after_init. Signed-off-by: Jason Yan <yanaijie@huawei.com> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Diana Craciun <diana.craciun@nxp.com> Tested-by: Diana Craciun <diana.craciun@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/init-common.c5
-rw-r--r--arch/powerpc/mm/init_32.c5
-rw-r--r--arch/powerpc/mm/init_64.c5
3 files changed, 5 insertions, 10 deletions
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c
index a84da92920f7..e223da482c0c 100644
--- a/arch/powerpc/mm/init-common.c
+++ b/arch/powerpc/mm/init-common.c
@@ -21,6 +21,11 @@
#include <asm/pgtable.h>
#include <asm/kup.h>
+phys_addr_t memstart_addr __ro_after_init = (phys_addr_t)~0ull;
+EXPORT_SYMBOL_GPL(memstart_addr);
+phys_addr_t kernstart_addr __ro_after_init;
+EXPORT_SYMBOL_GPL(kernstart_addr);
+
static bool disable_kuep = !IS_ENABLED(CONFIG_PPC_KUEP);
static bool disable_kuap = !IS_ENABLED(CONFIG_PPC_KUAP);
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index b04896a88d79..872df48ae41b 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -56,11 +56,6 @@
phys_addr_t total_memory;
phys_addr_t total_lowmem;
-phys_addr_t memstart_addr = (phys_addr_t)~0ull;
-EXPORT_SYMBOL(memstart_addr);
-phys_addr_t kernstart_addr;
-EXPORT_SYMBOL(kernstart_addr);
-
#ifdef CONFIG_RELOCATABLE
/* Used in __va()/__pa() */
long long virt_phys_offset;
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 4e08246acd79..28b9596b4b90 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -63,11 +63,6 @@
#include <mm/mmu_decl.h>
-phys_addr_t memstart_addr = ~0;
-EXPORT_SYMBOL_GPL(memstart_addr);
-phys_addr_t kernstart_addr;
-EXPORT_SYMBOL_GPL(kernstart_addr);
-
#ifdef CONFIG_SPARSEMEM_VMEMMAP
/*
* Given an address within the vmemmap, determine the pfn of the page that