From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
j.neuschaefer@gmx.net
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 04/15] powerpc/32: always populate page tables for Abatron BDI.
Date: Thu, 10 Jan 2019 15:11:46 +0000 (UTC) [thread overview]
Message-ID: <2aa1e2cce42ef43c778b9e38c73c5e8e0f736cef.1547132681.git.christophe.leroy@c-s.fr> (raw)
In-Reply-To: <cover.1547132681.git.christophe.leroy@c-s.fr>
When CONFIG_BDI_SWITCH is set, the page tables have to be populated
allthough large TLBs are used, because the BDI switch knows nothing
about those large TLBs which are handled directly in TLB miss logic.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/mm/pgtable_32.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index fd665c32a1f7..94bd7d013557 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -261,7 +261,10 @@ void __init mapin_ram(void)
unsigned long top = base + reg->size;
base = mmu_mapin_ram(base, top);
- __mapin_ram_chunk(base, top);
+ if (IS_ENABLED(CONFIG_BDI_SWITCH))
+ __mapin_ram_chunk(reg->base, top);
+ else
+ __mapin_ram_chunk(base, top);
}
}
--
2.13.3
next prev parent reply other threads:[~2019-01-10 15:20 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 15:11 [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 01/15] powerpc/mm/32: add base address to mmu_mapin_ram() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 02/15] powerpc/mm/32s: rework mmu_mapin_ram() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 03/15] powerpc/mm/32s: use generic mmu_mapin_ram() for all blocks Christophe Leroy
2019-01-10 15:11 ` Christophe Leroy [this message]
2019-01-10 15:11 ` [PATCH v2 05/15] powerpc/wii: remove wii_mmu_mapin_mem2() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 06/15] powerpc/mm/32s: use _PAGE_EXEC in setbat() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 07/15] powerpc/mm/32s: add setibat() clearibat() and update_bats() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 08/15] powerpc/32: add helper to write into segment registers Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 09/15] powerpc/mmu: add is_strict_kernel_rwx() helper Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 10/15] powerpc/kconfig: define PAGE_SHIFT inside Kconfig Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 11/15] powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 12/15] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 13/15] powerpc/kconfig: make _etext and data areas alignment configurable on Book3s 32 Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 14/15] powerpc/8xx: don't disable large TLBs with CONFIG_STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 15/15] powerpc/kconfig: make _etext and data areas alignment configurable on 8xx Christophe Leroy
2019-01-13 18:16 ` [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX Jonathan Neuschäfer
2019-01-13 19:43 ` Christophe Leroy
2019-01-13 21:02 ` Jonathan Neuschäfer
2019-01-14 18:23 ` Christophe Leroy
2019-01-15 0:33 ` Jonathan Neuschäfer
2019-01-15 6:51 ` Christophe Leroy
2019-01-15 10:22 ` Michael Ellerman
2019-01-15 10:57 ` Christophe Leroy
2019-02-20 13:23 ` Michael Ellerman
2019-02-20 15:30 ` Christophe Leroy
2019-01-16 0:35 ` Jonathan Neuschäfer
2019-01-16 6:55 ` Christophe Leroy
2019-01-16 13:16 ` Jonathan Neuschäfer
2019-01-16 13:34 ` Christophe Leroy
2019-01-16 23:48 ` Jonathan Neuschäfer
2019-01-17 10:14 ` Christophe Leroy
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