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| author | Michael Ellerman <mpe@ellerman.id.au> | 2017-10-19 07:08:43 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-11-06 08:48:14 +0300 |
| commit | 4e003747043d57aa75c9762fa148ef38afe68dd8 (patch) | |
| tree | a9dc99de8961b4b66ab0ac84d0923dde198ded92 /arch/powerpc/kernel/mce_power.c | |
| parent | c1807e3f84668c4c1e838386fdc3f6e63df1156c (diff) | |
| download | linux-4e003747043d57aa75c9762fa148ef38afe68dd8.tar.xz | |
powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64
CONFIG_PPC_STD_MMU_64 indicates support for the "standard" powerpc MMU
on 64-bit CPUs. The "standard" MMU refers to the hash page table MMU
found in "server" processors, from IBM mainly.
Currently CONFIG_PPC_STD_MMU_64 is == CONFIG_PPC_BOOK3S_64. While it's
annoying to have two symbols that always have the same value, it's not
quite annoying enough to bother removing one.
However with the arrival of Power9, we now have the situation where
CONFIG_PPC_STD_MMU_64 is enabled, but the kernel is running using the
Radix MMU - *not* the "standard" MMU. So it is now actively confusing
to use it, because it implies that code is disabled or inactive when
the Radix MMU is in use, however that is not necessarily true.
So s/CONFIG_PPC_STD_MMU_64/CONFIG_PPC_BOOK3S_64/, and do some minor
formatting updates of some of the affected lines.
This will be a pain for backports, but c'est la vie.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/mce_power.c')
| -rw-r--r-- | arch/powerpc/kernel/mce_power.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index 82cabfc7c2f6..1600ab194ff9 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -168,7 +168,7 @@ void __flush_tlb_power9(unsigned int action) /* flush SLBs and reload */ -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 static void flush_and_reload_slb(void) { struct slb_shadow *slb; @@ -215,7 +215,7 @@ static void flush_erat(void) static int mce_flush(int what) { -#ifdef CONFIG_PPC_STD_MMU_64 +#ifdef CONFIG_PPC_BOOK3S_64 if (what == MCE_FLUSH_SLB) { flush_and_reload_slb(); return 1; |