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dma-mapping: remove dma_{alloc,free,mmap}_writecombine

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We can already use DMA_ATTR_WRITE_COMBINE or the _wc prefixed version,
so remove the third way of doing things.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Christoph Hellwig 2019-07-26 08:58:36 +02:00
parent 62fcee9a3b
commit 212836a992
2 changed files with 5 additions and 15 deletions
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11
drivers/gpu/drm/omapdrm/dss/dispc.c
View File

@ -4609,11 +4609,10 @@ static int dispc_errata_i734_wa_init(struct dispc_device *dispc)
i734_buf.size = i734.ovli.width * i734.ovli.height *
color_mode_to_bpp(i734.ovli.fourcc) / 8;
i734_buf.vaddr = dma_alloc_writecombine(&dispc->pdev->dev,
i734_buf.size, &i734_buf.paddr,
GFP_KERNEL);
i734_buf.vaddr = dma_alloc_wc(&dispc->pdev->dev, i734_buf.size,
&i734_buf.paddr, GFP_KERNEL);
if (!i734_buf.vaddr) {
dev_err(&dispc->pdev->dev, "%s: dma_alloc_writecombine failed\n",
dev_err(&dispc->pdev->dev, "%s: dma_alloc_wc failed\n",
__func__);
return -ENOMEM;
}
@ -4626,8 +4625,8 @@ static void dispc_errata_i734_wa_fini(struct dispc_device *dispc)
if (!dispc->feat->has_gamma_i734_bug)
return;
dma_free_writecombine(&dispc->pdev->dev, i734_buf.size, i734_buf.vaddr,
i734_buf.paddr);
dma_free_wc(&dispc->pdev->dev, i734_buf.size, i734_buf.vaddr,
i734_buf.paddr);
}
static void dispc_errata_i734_wa(struct dispc_device *dispc)

9
include/linux/dma-mapping.h
View File

@ -796,9 +796,6 @@ static inline void *dma_alloc_wc(struct device *dev, size_t size,
return dma_alloc_attrs(dev, size, dma_addr, gfp, attrs);
}
#ifndef dma_alloc_writecombine
#define dma_alloc_writecombine dma_alloc_wc
#endif
static inline void dma_free_wc(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_addr)
@ -806,9 +803,6 @@ static inline void dma_free_wc(struct device *dev, size_t size,
return dma_free_attrs(dev, size, cpu_addr, dma_addr,
DMA_ATTR_WRITE_COMBINE);
}
#ifndef dma_free_writecombine
#define dma_free_writecombine dma_free_wc
#endif
static inline int dma_mmap_wc(struct device *dev,
struct vm_area_struct *vma,
@ -818,9 +812,6 @@ static inline int dma_mmap_wc(struct device *dev,
return dma_mmap_attrs(dev, vma, cpu_addr, dma_addr, size,
DMA_ATTR_WRITE_COMBINE);
}
#ifndef dma_mmap_writecombine
#define dma_mmap_writecombine dma_mmap_wc
#endif
#ifdef CONFIG_NEED_DMA_MAP_STATE
#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME