[PATCH v4 07/24] iommu/mtk: Drop IOVA cookie management

From: Robin Murphy
Date: Wed Aug 11 2021 - 08:22:12 EST


The core code bakes its own cookies now.

CC: Yong Wu <yong.wu@xxxxxxxxxxxx>
Signed-off-by: Robin Murphy <robin.murphy@xxxxxxx>

---

v3: Also remove unneeded includes
---
drivers/iommu/mtk_iommu.c | 7 -------
drivers/iommu/mtk_iommu_v1.c | 1 -
2 files changed, 8 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 6f7c69688ce2..185694eb4456 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -9,7 +9,6 @@
#include <linux/component.h>
#include <linux/device.h>
#include <linux/dma-direct.h>
-#include <linux/dma-iommu.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@@ -441,17 +440,11 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
if (!dom)
return NULL;

- if (iommu_get_dma_cookie(&dom->domain)) {
- kfree(dom);
- return NULL;
- }
-
return &dom->domain;
}

static void mtk_iommu_domain_free(struct iommu_domain *domain)
{
- iommu_put_dma_cookie(domain);
kfree(to_mtk_domain(domain));
}

diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 778e66f5f1aa..be22fcf988ce 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -13,7 +13,6 @@
#include <linux/component.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
-#include <linux/dma-iommu.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
--
2.25.1