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/*
* Contiguous Memory Allocator for ppc KVM hash pagetable based on CMA
* for DMA mapping framework
*
* Copyright IBM Corporation, 2013
* Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License or (at your optional) any later version of the license.
*
*/
#ifndef __POWERPC_KVM_CMA_ALLOC_H__
#define __POWERPC_KVM_CMA_ALLOC_H__
/*
* Both RMA and Hash page allocation will be multiple of 256K.
*/
#define KVM_CMA_CHUNK_ORDER 18
extern struct page *kvm_alloc_cma(unsigned long nr_pages,
unsigned long align_pages);
extern bool kvm_release_cma(struct page *pages, unsigned long nr_pages);
extern long kvm_cma_declare_contiguous(phys_addr_t size,
phys_addr_t alignment) __init;
#endif
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