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Commit e4dcdd6b authored by Glauber Costa's avatar Glauber Costa Committed by Ingo Molnar
Browse files

x86: Add flush_write_buffers in nommu functions 



This patch adds flush_write_buffers() in some functions of pci-nommu_64.c
They are added anywhere i386 would also have it. This is not a problem
for x86_64, since flush_rite_buffers() an nop for it.

Signed-off-by: default avatarGlauber Costa <gcosta@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 9f9ab46d

arch/x86/kernel/pci-nommu_64.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -32,6 +32,7 @@ nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, 
	dma_addr_t bus = paddr;

	dma_addr_t bus = paddr;

	if (!check_addr("map_single", hwdev, bus, size))

	if (!check_addr("map_single", hwdev, bus, size))

				return bad_dma_address;

				return bad_dma_address;

	flush_write_buffers();

	return bus;

	return bus;

}

}
@@ -64,6 +65,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, 
			return 0;

			return 0;

		s->dma_length = s->length;

		s->dma_length = s->length;

	}

	}

	flush_write_buffers();

	return nents;

	return nents;

}

}