From: Catalin Marinas <catalin.marinas@arm.com>
To: Laura Abbott <lauraa@codeaurora.org>
Cc: "linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Russell King <linux@arm.linux.org.uk>,
Will Deacon <Will.Deacon@arm.com>,
Nicoas Pitre <nicolas.pitre@linaro.org>,
"linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>
Subject: Re: [RFC 2/3] arm: mm: Define set_memory_* functions for ARM
Date: Thu, 13 Jun 2013 17:25:59 +0100 [thread overview]
Message-ID: <20130613162559.GC9609@arm.com> (raw)
In-Reply-To: <1371057810-3189-3-git-send-email-lauraa@codeaurora.org>
On Wed, Jun 12, 2013 at 06:23:29PM +0100, Laura Abbott wrote:
> +int set_memory_ro(unsigned long addr, int numpages)
> +{
> + unsigned long start = addr;
> + unsigned long size = PAGE_SIZE*numpages;
> + unsigned end = start + size;
> +
> + apply_to_page_range(&init_mm, start, size, pte_set_ro, NULL);
> + dsb();
> + flush_tlb_kernel_range(start, end);
I think flush_tlb_kernel_range() already has a DSB.
--
Catalin
WARNING: multiple messages have this Message-ID (diff)
From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 2/3] arm: mm: Define set_memory_* functions for ARM
Date: Thu, 13 Jun 2013 17:25:59 +0100 [thread overview]
Message-ID: <20130613162559.GC9609@arm.com> (raw)
In-Reply-To: <1371057810-3189-3-git-send-email-lauraa@codeaurora.org>
On Wed, Jun 12, 2013 at 06:23:29PM +0100, Laura Abbott wrote:
> +int set_memory_ro(unsigned long addr, int numpages)
> +{
> + unsigned long start = addr;
> + unsigned long size = PAGE_SIZE*numpages;
> + unsigned end = start + size;
> +
> + apply_to_page_range(&init_mm, start, size, pte_set_ro, NULL);
> + dsb();
> + flush_tlb_kernel_range(start, end);
I think flush_tlb_kernel_range() already has a DSB.
--
Catalin
next prev parent reply other threads:[~2013-06-13 16:26 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-12 17:23 [RFC 0/3] Allow CONFIG_DEBUG_SET_MODULE_RONX to be used on ARM Laura Abbott
2013-06-12 17:23 ` Laura Abbott
2013-06-12 17:23 ` [RFC 1/3] arm: Add definitions for pte_mkexec/pte_mknexec Laura Abbott
2013-06-12 17:23 ` [RFC 2/3] arm: mm: Define set_memory_* functions for ARM Laura Abbott
2013-06-12 17:32 ` Russell King - ARM Linux
2013-06-12 17:32 ` Russell King - ARM Linux
2013-06-13 16:25 ` Catalin Marinas [this message]
2013-06-13 16:25 ` Catalin Marinas
2013-06-18 11:09 ` Will Deacon
2013-06-18 11:09 ` Will Deacon
2013-06-19 1:48 ` Laura Abbott
2013-06-19 1:48 ` Laura Abbott
2013-06-19 13:59 ` Will Deacon
2013-06-19 13:59 ` Will Deacon
2013-10-25 13:08 ` Will Deacon
2013-10-25 13:08 ` Will Deacon
2013-10-27 10:18 ` Russell King - ARM Linux
2013-10-27 10:18 ` Russell King - ARM Linux
2013-06-12 17:23 ` [RFC 3/3] arm: add DEBUG_SET_MODULE_RONX option to Kconfig Laura Abbott
2013-10-24 13:03 ` [RFC 0/3] Allow CONFIG_DEBUG_SET_MODULE_RONX to be used on ARM Russell King - ARM Linux
2013-10-24 13:03 ` Russell King - ARM Linux
2013-10-27 10:34 ` Russell King - ARM Linux
2013-10-27 10:34 ` Russell King - ARM Linux
2013-10-27 11:57 ` Russell King - ARM Linux
2013-10-27 11:57 ` Russell King - ARM Linux
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