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/*
*
* (C) COPYRIGHT 2008-2013 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef _UMP_KERNEL_PRIV_H_
#define _UMP_KERNEL_PRIV_H_
#ifdef __KERNEL__
#include <linux/kernel.h>
#include <linux/list.h>
#include <asm/cacheflush.h>
#endif
#define UMP_EXPECTED_IDS 64
#define UMP_MAX_IDS 32768
#ifdef __KERNEL__
#define UMP_ASSERT(expr) \
if (!(expr)) { \
printk(KERN_ERR "UMP: Assertion failed! %s,%s,%s,line=%d\n",\
#expr,__FILE__,__func__,__LINE__); \
BUG(); \
}
static inline void ump_sync_to_memory(uint64_t paddr, void* vaddr, size_t sz)
{
#ifdef CONFIG_ARM
__cpuc_flush_dcache_area(vaddr, sz);
outer_flush_range(paddr, paddr+sz);
#elif defined(CONFIG_X86)
struct scatterlist scl = {0, };
sg_set_page(&scl, pfn_to_page(PFN_DOWN(paddr)), sz,
paddr & (PAGE_SIZE -1 ));
dma_sync_sg_for_cpu(NULL, &scl, 1, DMA_TO_DEVICE);
mb(); /* for outer_sync (if needed) */
#else
#error Implement cache maintenance for your architecture here
#endif
}
static inline void ump_sync_to_cpu(uint64_t paddr, void* vaddr, size_t sz)
{
#ifdef CONFIG_ARM
__cpuc_flush_dcache_area(vaddr, sz);
outer_flush_range(paddr, paddr+sz);
#elif defined(CONFIG_X86)
struct scatterlist scl = {0, };
sg_set_page(&scl, pfn_to_page(PFN_DOWN(paddr)), sz,
paddr & (PAGE_SIZE -1 ));
dma_sync_sg_for_cpu(NULL, &scl, 1, DMA_FROM_DEVICE);
#else
#error Implement cache maintenance for your architecture here
#endif
}
#endif /* __KERNEL__*/
#endif /* _UMP_KERNEL_PRIV_H_ */
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