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/*
*
* (C) COPYRIGHT 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.
*
*/
#include <mali_kbase.h>
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/dma-mapping.h>
#include <linux/mutex.h>
#include <asm/cacheflush.h>
void kbase_sync_to_memory(phys_addr_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_ARM64)
/* TODO (MID64-46): There's no other suitable cache flush function for ARM64 */
flush_cache_all();
#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
}
void kbase_sync_to_cpu(phys_addr_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_ARM64)
/* TODO (MID64-46): There's no other suitable cache flush function for ARM64 */
flush_cache_all();
#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
}
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