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authorDavid Gibson <david@gibson.dropbear.id.au>2016-02-09 13:32:43 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2016-03-02 09:06:16 +1100
commit5c3c7ede2bdcb85fa2fd51c8147cdf70ebc17fcb (patch)
tree53b8530977350f92bf76ac0373eb7023a18839a3 /tools/testing/selftests/powerpc/math/fpu_asm.S
parentpowerpc/mm: Clean up memory hotplug failure paths (diff)
downloadlinux-dev-5c3c7ede2bdcb85fa2fd51c8147cdf70ebc17fcb.tar.xz
linux-dev-5c3c7ede2bdcb85fa2fd51c8147cdf70ebc17fcb.zip
powerpc/mm: Split hash page table sizing heuristic into a helper
htab_get_table_size() either retrieve the size of the hash page table (HPT) from the device tree - if the HPT size is determined by firmware - or uses a heuristic to determine a good size based on RAM size if the kernel is responsible for allocating the HPT. To support a PAPR extension allowing resizing of the HPT, we're going to want the memory size -> HPT size logic elsewhere, so split it out into a helper function. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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