[PATCH 08/11] iommu: exynos: unify code for fldp cache invalidation
From: m.szyprowski@samsung.com (Marek Szyprowski)
Date: 2016-02-16 14:57:01
Also in:
linux-iommu, linux-samsung-soc
Subsystem:
exynos sysmmu (iommu) driver, iommu subsystem, the rest · Maintainers:
Marek Szyprowski, Joerg Roedel, Will Deacon, Linus Torvalds
This patch simplifies the code for handling of flpdcache invalidation. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> --- drivers/iommu/exynos-iommu.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 15787a1..e42a76c 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c@@ -440,13 +440,6 @@ static int __sysmmu_enable(struct sysmmu_drvdata *data, phys_addr_t pgtable, return ret; } -static void __sysmmu_tlb_invalidate_flpdcache(struct sysmmu_drvdata *data, - sysmmu_iova_t iova) -{ - if (data->version == MAKE_MMU_VER(3, 3)) - __raw_writel(iova | 0x1, data->sfrbase + REG_MMU_FLUSH_ENTRY); -} - static void sysmmu_tlb_invalidate_flpdcache(struct sysmmu_drvdata *data, sysmmu_iova_t iova) {
@@ -455,8 +448,10 @@ static void sysmmu_tlb_invalidate_flpdcache(struct sysmmu_drvdata *data, clk_enable(data->clk_master); spin_lock_irqsave(&data->lock, flags); - if (is_sysmmu_active(data)) - __sysmmu_tlb_invalidate_flpdcache(data, iova); + if (is_sysmmu_active(data)) { + if (data->version >= MAKE_MMU_VER(3, 3)) + __sysmmu_tlb_invalidate_entry(data, iova, 1); + } spin_unlock_irqrestore(&data->lock, flags); clk_disable(data->clk_master);
--
1.9.2