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dma-mapping: Remove dma_mark_clean (again)

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With IA-64 now gone, there are no users of the dma_mark_clean hook,
so we can retire it for good.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/c004927f01962726ff1dcf94d1b4efff84db805a.1767727673.git.robin.murphy@arm.com
This commit is contained in:
Robin Murphy 2026-01-06 19:27:53 +00:00 • committed by Marek Szyprowski
parent 8f0b4cce44
commit 8a840ab056
4 changed files with 0 additions and 20 deletions
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8
include/linux/dma-map-ops.h
View file

@ -377,14 +377,6 @@ static inline void arch_dma_prep_coherent(struct page *page, size_t size)
}
#endif /* CONFIG_ARCH_HAS_DMA_PREP_COHERENT */
#ifdef CONFIG_ARCH_HAS_DMA_MARK_CLEAN
void arch_dma_mark_clean(phys_addr_t paddr, size_t size);
#else
static inline void arch_dma_mark_clean(phys_addr_t paddr, size_t size)
{
}
#endif /* ARCH_HAS_DMA_MARK_CLEAN */
void *arch_dma_set_uncached(void *addr, size_t size);
void arch_dma_clear_uncached(void *addr, size_t size);

6
kernel/dma/Kconfig
View file

@ -47,12 +47,6 @@ config ARCH_HAS_DMA_SET_MASK
config ARCH_HAS_DMA_WRITE_COMBINE
bool
#
# Select if the architectures provides the arch_dma_mark_clean hook
#
config ARCH_HAS_DMA_MARK_CLEAN
bool
config DMA_DECLARE_COHERENT
bool

3
kernel/dma/direct.c
View file

@ -425,9 +425,6 @@ void dma_direct_sync_sg_for_cpu(struct device *dev,
arch_sync_dma_for_cpu(paddr, sg->length, dir);
swiotlb_sync_single_for_cpu(dev, paddr, sg->length, dir);
if (dir == DMA_FROM_DEVICE)
arch_dma_mark_clean(paddr, sg->length);
}
if (!dev_is_dma_coherent(dev))

3
kernel/dma/direct.h
View file

@ -75,9 +75,6 @@ static inline void dma_direct_sync_single_for_cpu(struct device *dev,
}
swiotlb_sync_single_for_cpu(dev, paddr, size, dir);
if (dir == DMA_FROM_DEVICE)
arch_dma_mark_clean(paddr, size);
}
static inline dma_addr_t dma_direct_map_phys(struct device *dev,