| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_X86_XEN_PAGE_COHERENT_H |
| #define _ASM_X86_XEN_PAGE_COHERENT_H |
| |
| #include <asm/page.h> |
| #include <linux/dma-mapping.h> |
| |
| static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, |
| dma_addr_t *dma_handle, gfp_t flags, |
| unsigned long attrs) |
| { |
| void *vstart = (void*)__get_free_pages(flags, get_order(size)); |
| *dma_handle = virt_to_phys(vstart); |
| return vstart; |
| } |
| |
| static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, |
| void *cpu_addr, dma_addr_t dma_handle, |
| unsigned long attrs) |
| { |
| free_pages((unsigned long) cpu_addr, get_order(size)); |
| } |
| |
| #endif /* _ASM_X86_XEN_PAGE_COHERENT_H */ |
