2018-12-20 08:27:03

by Christophe Leroy

Subject: [PATCH] powerpc/8xx: Allow pinning IMMR TLB when using early debug console

CONFIG_EARLY_DEBUG_CPM requires IMMR area TLB to be pinned
otherwise it doesn't survive MMU_init, and the boot fails.

Signed-off-by: Christophe Leroy <[email protected]>
---
arch/powerpc/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 7996ec33f1b4..45aed802ba86 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1192,7 +1192,7 @@ config PIN_TLB_DATA

config PIN_TLB_IMMR
bool "Pinned TLB for IMMR"
- depends on PIN_TLB
+ depends on PIN_TLB || PPC_EARLY_DEBUG_CPM
default y

config PIN_TLB_TEXT
--
2.13.3

2018-12-23 16:45:14

by Michael Ellerman

Subject: Re: powerpc/8xx: Allow pinning IMMR TLB when using early debug console

On Thu, 2018-12-20 at 07:25:28 UTC, Christophe Leroy wrote:
> CONFIG_EARLY_DEBUG_CPM requires IMMR area TLB to be pinned
> otherwise it doesn't survive MMU_init, and the boot fails.
>
> Signed-off-by: Christophe Leroy <[email protected]>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/96d19d70e1012383365c68e271d99f

cheers