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authorChristoph Hellwig <hch@lst.de>2019-01-04 13:03:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-01-04 18:15:33 -0800
commit3fed6ae4b027f9c93be18520f87bd06bdffd196b (patch)
treea11a4b081e8d743e425c64d6717b117d8c231dea
parent170d13ca3a2fdaaa0283399247631b76b441cca2 (diff)
downloadlinux-3fed6ae4b027f9c93be18520f87bd06bdffd196b.tar.gz
ia64: fix compile without swiotlb
Some non-generic ia64 configs don't build swiotlb, and thus should not pull in the generic non-coherent DMA infrastructure. Fixes: 68c608345c ("swiotlb: remove dma_mark_clean") Reported-by: Tony Luck <tony.luck@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/ia64/Kconfig2
-rw-r--r--arch/ia64/mm/init.c2
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index ccd56f5df8cd..8d7396bd1790 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -31,7 +31,7 @@ config IA64
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_VIRT_CPU_ACCOUNTING
select ARCH_HAS_DMA_COHERENT_TO_PFN if SWIOTLB
- select ARCH_HAS_SYNC_DMA_FOR_CPU
+ select ARCH_HAS_SYNC_DMA_FOR_CPU if SWIOTLB
select VIRT_TO_BUS
select ARCH_DISCARD_MEMBLOCK
select GENERIC_IRQ_PROBE
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 055382622f07..29d841525ca1 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -67,6 +67,7 @@ __ia64_sync_icache_dcache (pte_t pte)
set_bit(PG_arch_1, &page->flags); /* mark page as clean */
}
+#ifdef CONFIG_SWIOTLB
/*
* Since DMA is i-cache coherent, any (complete) pages that were written via
* DMA can be marked as "clean" so that lazy_mmu_prot_update() doesn't have to
@@ -81,6 +82,7 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
set_bit(PG_arch_1, &pfn_to_page(pfn)->flags);
} while (++pfn <= PHYS_PFN(paddr + size - 1));
}
+#endif
inline void
ia64_set_rbs_bot (void)