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microblaze: use generic dma_noncoherent_ops

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Switch to the generic noncoherent direct mapping implementation.

This removes the direction-based optimizations in
sync_{single,sg}_for_{cpu,device} which were marked untestested and
do not match the usually very well tested {un,}map_{single,sg}
implementations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Christoph Hellwig
2018-07-19 05:54:39 -07:00
committed by Michal Simek
parent bd05a58ddf
commit 5411ad27db
6 changed files with 22 additions and 166 deletions
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1
arch/microblaze/include/asm/Kbuild
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@@ -5,6 +5,7 @@ generic-y += bugs.h
generic-y += compat.h
generic-y += device.h
generic-y += div64.h
generic-y += dma-mapping.h
generic-y += emergency-restart.h
generic-y += exec.h
generic-y += extable.h

28
arch/microblaze/include/asm/dma-mapping.h
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@@ -1,28 +0,0 @@
/*
* Implements the generic device dma API for microblaze and the pci
*
* Copyright (C) 2009-2010 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2009-2010 PetaLogix
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* This file is base on powerpc and x86 dma-mapping.h versions
* Copyright (C) 2004 IBM
*/
#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
#define _ASM_MICROBLAZE_DMA_MAPPING_H
/*
* Available generic sets of operations
*/
extern const struct dma_map_ops dma_nommu_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_nommu_ops;
}
#endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */

2
arch/microblaze/include/asm/pgtable.h
View File

@@ -553,8 +553,6 @@ void __init *early_get_page(void);
extern unsigned long ioremap_bot, ioremap_base;
void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);
void consistent_free(size_t size, void *vaddr);
void consistent_sync(void *vaddr, size_t size, int direction);
void consistent_sync_page(struct page *page, unsigned long offset,
size_t size, int direction);