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Commit ca19243e authored by Grant Grundler's avatar Grant Grundler Committed by Joerg Roedel
Browse files

iommu/exynos: Remove dead code (set_prefbuf) 



exynos_sysmmu_set_prefbuf() is not called any where.

Signed-off-by: default avatarGrant Grundler <grundler@chromium.org>
Reviewed-by: default avatarCho KyongHo <pullip.cho@samsung.com>
Signed-off-by: default avatarJoerg Roedel <joro@8bytes.org>
parent d4e4ab86

drivers/iommu/exynos-iommu.c

+0 −44
Original line number Diff line number Diff line
@@ -247,50 +247,6 @@ static void __sysmmu_set_prefbuf(void __iomem *sfrbase, unsigned long base, 
	__raw_writel(size - 1 + base,  sfrbase + REG_PB0_EADDR + idx * 8);

}



void exynos_sysmmu_set_prefbuf(struct device *dev,

				unsigned long base0, unsigned long size0,

				unsigned long base1, unsigned long size1)

{

	struct sysmmu_drvdata *data = dev_get_drvdata(dev->archdata.iommu);

	unsigned long flags;

	int i;



	BUG_ON((base0 + size0) <= base0);

	BUG_ON((size1 > 0) && ((base1 + size1) <= base1));



	read_lock_irqsave(&data->lock, flags);

	if (!is_sysmmu_active(data))

		goto finish;



	for (i = 0; i < data->nsfrs; i++) {

		if ((readl(data->sfrbases[i] + REG_MMU_VERSION) >> 28) == 3) {

			if (!sysmmu_block(data->sfrbases[i]))

				continue;



			if (size1 == 0) {

				if (size0 <= SZ_128K) {

					base1 = base0;

					size1 = size0;

				} else {

					size1 = size0 -

						ALIGN(size0 / 2, SZ_64K);

					size0 = size0 - size1;

					base1 = base0 + size0;

				}

			}



			__sysmmu_set_prefbuf(

					data->sfrbases[i], base0, size0, 0);

			__sysmmu_set_prefbuf(

					data->sfrbases[i], base1, size1, 1);



			sysmmu_unblock(data->sfrbases[i]);

		}

	}

finish:

	read_unlock_irqrestore(&data->lock, flags);

}



static void __set_fault_handler(struct sysmmu_drvdata *data,

					sysmmu_fault_handler_t handler)

{