From: kipade@163.com (kipade)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to alloc_pages from a given physical memory?
Date: Thu, 6 Jul 2017 17:38:05 +0800 [thread overview]
Message-ID: <ea427c4e-648a-c398-63a1-551b3134d942@163.com> (raw)
In-Reply-To: <979acf58-3981-eb49-c889-eb9ca3bd2e8e@partner.samsung.com>
cortex A15, omap5 platform
? 2017?07?06? 17:30, Kamil Konieczny wrote:
>
> On 06.07.2017 11:04, kipade wrote:
>> I use arm 32bit cpu, with kernel 3.14
> banana-pi ? nano-pi ? orange-pi ? odroid ?
>
> Is it memory region for system registers ?
>
>>> On 06.07.2017 05:08, kipade wrote:
>>>> Here I want to allocate a block of shared memory from a given physical
>>>> address, such as 0x90000000, 6M. However, alloc_pages can't fit this
>>>> point. I had reserved enugh pages via cmem, there also have enough
>>>> continous pages for such allocation anywhere else. What should I do?
next prev parent reply other threads:[~2017-07-06 9:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170706030832epcas2p134389ce39645a79dcf6f8fb24b1e2436@epcas2p1.samsung.com>
2017-07-06 3:08 ` How to alloc_pages from a given physical memory? kipade
2017-07-06 8:53 ` Kamil Konieczny
2017-07-06 9:04 ` kipade
2017-07-06 9:30 ` Kamil Konieczny
2017-07-06 9:38 ` kipade [this message]
2017-07-06 9:43 ` kipade
2017-07-06 10:01 ` Kamil Konieczny
2017-07-06 10:20 ` kipade
2017-07-06 11:17 ` Kamil Konieczny
2017-07-06 13:43 ` kipade
2017-07-06 14:52 ` Kamil Konieczny
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