討論串bus_dmamem_alloc confusion
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On Thu, Oct 21, 2004 at 09:50:52PM -0700, Matthew Dillon wrote:. >. > :Exactly. > :. > : fdM = open("/dev/mem", O_RDWR);. > : .... > : virt = mmap(0,
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MAP_PRIVATE? If you intend to write to the memory you definitely. do not want a private mapping, that will do a copy-on-write for any. modifications y
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On Sun, Oct 17, 2004 at 12:10:56PM -0700, Matthew Dillon wrote:. >. > :This is using the normal kernel slab allocator. The only think specialy. > :han
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On Sun, Oct 17, 2004 at 12:10:56PM -0700, Matthew Dillon wrote:. >. > :This is using the normal kernel slab allocator. The only think specialy. > :han
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