From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v7 16/16] ARM: LPAE: Add the Kconfig entries
Date: Sun, 23 Oct 2011 13:00:08 +0100 [thread overview]
Message-ID: <20111023120008.GE17912@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1312988619-16804-17-git-send-email-catalin.marinas@arm.com>
On Wed, Aug 10, 2011 at 04:03:39PM +0100, Catalin Marinas wrote:
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index 88633fe..2df5504 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -629,6 +629,19 @@ config IO_36
>
> comment "Processor Features"
>
> +config ARM_LPAE
> + bool "Support for the Large Physical Address Extension"
> + depends on MMU && CPU_V7
> + help
> + Say Y if you have an ARMv7 processor supporting the LPAE page table
> + format and you would like to access memory beyond the 4GB limit.
This help text is entirely insufficient. It doesn't tell people what the
implications are for enabling this option on CPUs without LPAE support.
(It won't boot.) It doesn't suggest what people should select when they're
unsure what setting to use.
next prev parent reply other threads:[~2011-10-23 12:00 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-10 15:03 [PATCH v7 00/16] ARM: Add support for the Large Physical Address Extensions Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 01/16] ARM: LPAE: add ISBs around MMU enabling code Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 02/16] ARM: LPAE: Cast the dma_addr_t argument to unsigned long in dma_to_virt Catalin Marinas
2011-08-13 14:33 ` Russell King - ARM Linux
2011-08-23 11:15 ` Russell King - ARM Linux
2011-08-10 15:03 ` [PATCH v7 03/16] ARM: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* Catalin Marinas
2011-08-13 14:34 ` Russell King - ARM Linux
2011-08-15 16:48 ` Catalin Marinas
2011-08-23 11:15 ` Russell King - ARM Linux
2011-08-23 13:09 ` Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 04/16] ARM: LPAE: Factor out 2-level page table definitions into separate files Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 05/16] ARM: LPAE: Add (pte|pmd)val_t type definitions as u32 Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 06/16] ARM: LPAE: Use a mask for physical addresses in page table entries Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 07/16] ARM: LPAE: Introduce the 3-level page table format definitions Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 08/16] ARM: LPAE: Page table maintenance for the 3-level format Catalin Marinas
2011-10-23 11:56 ` Russell King - ARM Linux
2011-10-23 12:49 ` Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 09/16] ARM: LPAE: MMU setup for the 3-level page table format Catalin Marinas
2011-08-13 11:49 ` Vasily Khoruzhick
2011-08-13 12:56 ` Vasily Khoruzhick
2011-08-13 12:58 ` [PATCH] Fix non-LPAE boot regression Vasily Khoruzhick
2011-08-13 14:14 ` Catalin Marinas
2011-08-13 14:39 ` Russell King - ARM Linux
2011-08-13 14:45 ` Catalin Marinas
2011-08-15 11:41 ` Catalin Marinas
2011-08-15 12:09 ` Catalin Marinas
2011-08-15 12:31 ` Vasily Khoruzhick
2011-08-24 8:16 ` Vasily Khoruzhick
2011-08-15 16:51 ` [PATCH v7 09/16] ARM: LPAE: MMU setup for the 3-level page table format Catalin Marinas
2011-08-19 10:25 ` Ian Campbell
2011-08-19 11:10 ` Catalin Marinas
2011-08-19 11:47 ` Ian Campbell
2011-08-10 15:03 ` [PATCH v7 10/16] ARM: LPAE: Invalidate the TLB before freeing the PMD Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 11/16] ARM: LPAE: Add fault handling support Catalin Marinas
2011-10-23 11:57 ` Russell King - ARM Linux
2011-11-02 17:02 ` Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 12/16] ARM: LPAE: Add context switching support Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 13/16] ARM: LPAE: Add identity mapping support for the 3-level page table format Catalin Marinas
2011-10-23 11:59 ` Russell King - ARM Linux
2011-08-10 15:03 ` [PATCH v7 14/16] ARM: LPAE: mark memory banks with start > ULONG_MAX as highmem Catalin Marinas
2011-08-10 15:03 ` [PATCH v7 15/16] ARM: LPAE: add support for ATAG_MEM64 Catalin Marinas
2011-10-23 11:59 ` Russell King - ARM Linux
2011-08-10 15:03 ` [PATCH v7 16/16] ARM: LPAE: Add the Kconfig entries Catalin Marinas
2011-10-23 12:00 ` Russell King - ARM Linux [this message]
2011-11-02 17:21 ` Russell King - ARM Linux
2011-11-02 18:07 ` Catalin Marinas
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