1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _ASM_X86_XEN_PAGE_COHERENT_H
3*4882a593Smuzhiyun #define _ASM_X86_XEN_PAGE_COHERENT_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm/page.h>
6*4882a593Smuzhiyun #include <linux/dma-mapping.h>
7*4882a593Smuzhiyun
xen_alloc_coherent_pages(struct device * hwdev,size_t size,dma_addr_t * dma_handle,gfp_t flags,unsigned long attrs)8*4882a593Smuzhiyun static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
9*4882a593Smuzhiyun dma_addr_t *dma_handle, gfp_t flags,
10*4882a593Smuzhiyun unsigned long attrs)
11*4882a593Smuzhiyun {
12*4882a593Smuzhiyun void *vstart = (void*)__get_free_pages(flags, get_order(size));
13*4882a593Smuzhiyun *dma_handle = virt_to_phys(vstart);
14*4882a593Smuzhiyun return vstart;
15*4882a593Smuzhiyun }
16*4882a593Smuzhiyun
xen_free_coherent_pages(struct device * hwdev,size_t size,void * cpu_addr,dma_addr_t dma_handle,unsigned long attrs)17*4882a593Smuzhiyun static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
18*4882a593Smuzhiyun void *cpu_addr, dma_addr_t dma_handle,
19*4882a593Smuzhiyun unsigned long attrs)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun free_pages((unsigned long) cpu_addr, get_order(size));
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun #endif /* _ASM_X86_XEN_PAGE_COHERENT_H */
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