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Re: Using Bootmem for large DMA buffers in the presence of the slab allocator

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From: Christoph Lameter
Subject: Re: Using Bootmem for large DMA buffers in the presence of the slab allocator
Date: Wednesday, August 4, 2010 - 11:01 am

Note also that allocating a 64M buffer will be difficult due to the
maximum allocation size restrictions of the page allocator.

You therefore have no choice but to allocate the memory at boot
time. Or (if you have control over the arch) increase the maximum
allocation unit (MAX_ORDER I believe).


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Messages in current thread:
Using Bootmem for large DMA buffers in the presence of the ..., Peter Crosthwaite, (Tue Aug 3, 11:07 pm)
Re: Using Bootmem for large DMA buffers in the presence of ..., Christoph Lameter, (Wed Aug 4, 8:40 am)
Re: Using Bootmem for large DMA buffers in the presence of ..., Pekka Enberg, (Wed Aug 4, 10:35 am)
Re: Using Bootmem for large DMA buffers in the presence of ..., Christoph Lameter, (Wed Aug 4, 11:01 am)
Re: Using Bootmem for large DMA buffers in the presence of ..., FUJITA Tomonori, (Wed Aug 4, 5:16 pm)
Re: Using Bootmem for large DMA buffers in the presence of ..., Peter Crosthwaite, (Thu Aug 5, 5:02 pm)