powerpc/64/kexec: Fix MMU cleanup on radix
Just using the hash ops won't work anymore since radix will have
NULL in there. Instead create an mmu_cleanup_all() function which
will do the right thing based on the MMU mode.
For Radix, for now I clear UPRT and the PTCR, effectively switching
back to Radix with no partition table setup.
Currently set it to NULL on BookE thought it might be a good idea
to wipe the TLB there (Scott ?)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 4c780a3..7a77932 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -55,9 +55,6 @@
const unsigned long *basep;
const unsigned int *sizep;
- if (!mmu_hash_ops.hpte_clear_all)
- return -ENOENT;
-
/*
* Since we use the kernel fault handlers and paging code to
* handle the virtual mode, we must make sure no destination
@@ -379,13 +376,8 @@
* a toc is easier in C, so pass in what we can.
*/
kexec_sequence(&kexec_stack, image->start, image,
- page_address(image->control_code_page),
-#ifdef CONFIG_PPC_STD_MMU
- mmu_hash_ops.hpte_clear_all
-#else
- NULL
-#endif
- );
+ page_address(image->control_code_page),
+ mmu_cleanup_all);
/* NOTREACHED */
}