drm: Loongson-3 doesn't fully support wc memory

[mirror_ubuntu-artful-kernel.git] / include / drm / drm_cache.h

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 * Copyright 2009 Red Hat Inc.
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/*
 * Authors:
 * Dave Airlie <airlied@redhat.com>
 */

#ifndef _DRM_CACHE_H_
#define _DRM_CACHE_H_

void drm_clflush_pages(struct page *pages[], unsigned long num_pages);

static inline bool drm_arch_can_wc_memory(void)
{
#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
	return false;
#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
	return false;
#else
	return true;
#endif
}

#endif