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RE: [PATCH 1/4] add is_buffer_dma_capable helper function

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From: Luck, Tony
Subject: RE: [PATCH 1/4] add is_buffer_dma_capable helper function
Date: Tuesday, September 9, 2008 - 9:17 am

+static inline int is_buffer_dma_capable(u64 mask, dma_addr_t addr, size_t size)
+{
+       return addr + size <= mask;
+}

Do we care about wrap-around (e.g. addr=0xffffffffffffffff size=2)?

-Tony
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Messages in current thread:
[PATCH 0/4] add a helper function, is_buffer_dma_capable(), FUJITA Tomonori, (Tue Sep 9, 9:06 am)
[PATCH 1/4] add is_buffer_dma_capable helper function, FUJITA Tomonori, (Tue Sep 9, 9:06 am)
[PATCH 2/4] x86: convert gart to use is_buffer_dma_capable ..., FUJITA Tomonori, (Tue Sep 9, 9:06 am)
[PATCH 3/4] x86: convert pci-nommu to use is_buffer_dma_ca ..., FUJITA Tomonori, (Tue Sep 9, 9:06 am)
[PATCH 4/4] swiotlb: convert swiotlb to use is_buffer_dma_ ..., FUJITA Tomonori, (Tue Sep 9, 9:06 am)
RE: [PATCH 1/4] add is_buffer_dma_capable helper function, Luck, Tony, (Tue Sep 9, 9:17 am)
Re: [PATCH 1/4] add is_buffer_dma_capable helper function, Joerg Roedel, (Tue Sep 9, 9:21 am)
Re: [PATCH 0/4] add a helper function, is_buffer_dma_capable(), Joerg Roedel, (Tue Sep 9, 9:27 am)
RE: [PATCH 1/4] add is_buffer_dma_capable helper function, FUJITA Tomonori, (Tue Sep 9, 9:49 am)
Re: [PATCH 0/4] add a helper function, is_buffer_dma_capable(), Ingo Molnar, (Wed Sep 10, 2:34 am)