From: sdu.liu@huawei.com (Liu Hua)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/2] change ARM linux memory layout to support 32 CPUs
Date: Tue, 15 Apr 2014 19:06:05 +0800 [thread overview]
Message-ID: <1397559967-26050-1-git-send-email-sdu.liu@huawei.com> (raw)
This patch series change fixmap mapping region to suppport 32 CPUs.
Because the "top_pmd" covers 0xfffe0000 - 0xffffffff(2M). And part
is used by vector table. So I move this region down to 0xffc00000
- 0xffdffff.
I have tested the patches on arma9(2 CPUs) and arma15(16 CPUs) platforms
Changes from v2:
---------------
- Removed two macros: FIX_KMAP_BEGIN and FIX_KMAP_END;
- Unchanged DMA mapping region related documentation;
Changes from v1:
---------------
- changed documentation for ARM linux memory layout.
- moved fixmap mapping region, not just extended.
Liu Hua (2):
ARM : fixmap : remove FIX_KMAP_BEGIN and FIX_KMAP_END
ARM : change fixmap mapping region to support 32 CPUs
Documentation/arm/memory.txt | 2 +-
arch/arm/include/asm/fixmap.h | 21 ++++-----------------
arch/arm/include/asm/highmem.h | 1 +
arch/arm/mm/highmem.c | 33 ++++++++++++++++++++++++---------
arch/arm/mm/mmu.c | 4 ++++
5 files changed, 34 insertions(+), 27 deletions(-)
--
1.9.0
next reply other threads:[~2014-04-15 11:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-15 11:06 Liu Hua [this message]
2014-04-15 11:06 ` [PATCH v3 1/2] ARM : fixmap : remove FIX_KMAP_BEGIN and FIX_KMAP_END Liu Hua
2014-04-15 11:06 ` [PATCH v3 2/2] ARM : change fixmap mapping region to support 32 CPUs Liu Hua
2014-04-15 15:06 ` Nicolas Pitre
2014-05-30 15:33 ` Rob Herring
2014-05-30 18:02 ` Will Deacon
2014-05-30 19:25 ` Nicolas Pitre
2014-06-10 6:52 ` Liu hua
2014-08-06 2:51 ` Kees Cook
2014-08-06 3:11 ` Nicolas Pitre
2014-08-06 3:40 ` Liu hua
2014-08-06 16:37 ` Kees Cook
2014-08-06 17:21 ` Nicolas Pitre
2014-08-06 17:28 ` Kees Cook
2014-08-06 22:16 ` Russell King - ARM Linux
2014-08-06 23:22 ` Kees Cook
2014-04-22 21:31 ` [PATCH v3 0/2] change ARM linux memory layout " Russell King - ARM Linux
2014-04-22 23:50 ` Nicolas Pitre
2014-05-04 2:34 ` Liu hua
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