diff mbox series

[v8,23/24] iommu: Convert simple drivers with DOMAIN_DMA to domain_alloc_paging()

Message ID 23-v8-81230027b2fa+9d-iommu_all_defdom_jgg@nvidia.com (mailing list archive)
State New, archived
Headers show
Series iommu: Make default_domain's mandatory | expand

Commit Message

Jason Gunthorpe Sept. 13, 2023, 1:43 p.m. UTC 
These drivers are all trivially converted since the function is only
called if the domain type is going to be
IOMMU_DOMAIN_UNMANAGED/DMA.

Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Steven Price <steven.price@arm.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/iommu/arm/arm-smmu/qcom_iommu.c | 6 ++----
 drivers/iommu/exynos-iommu.c            | 7 ++-----
 drivers/iommu/ipmmu-vmsa.c              | 7 ++-----
 drivers/iommu/mtk_iommu.c               | 7 ++-----
 drivers/iommu/rockchip-iommu.c          | 7 ++-----
 drivers/iommu/sprd-iommu.c              | 7 ++-----
 drivers/iommu/sun50i-iommu.c            | 9 +++------
 drivers/iommu/tegra-smmu.c              | 7 ++-----
 8 files changed, 17 insertions(+), 40 deletions(-)

Comments

Yong Wu (吴勇) Sept. 19, 2023, 10:44 a.m. UTC | #1 
On Wed, 2023-09-13 at 10:43 -0300, Jason Gunthorpe wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  These drivers are all trivially converted since the function is only
> called if the domain type is going to be
> IOMMU_DOMAIN_UNMANAGED/DMA.
> 
> Tested-by: Heiko Stuebner <heiko@sntech.de>
> Tested-by: Steven Price <steven.price@arm.com>
> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
> Tested-by: Nicolin Chen <nicolinc@nvidia.com>
> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
> ---
>  drivers/iommu/arm/arm-smmu/qcom_iommu.c | 6 ++----
>  drivers/iommu/exynos-iommu.c            | 7 ++-----
>  drivers/iommu/ipmmu-vmsa.c              | 7 ++-----
>  drivers/iommu/mtk_iommu.c               | 7 ++-----
>  drivers/iommu/rockchip-iommu.c          | 7 ++-----
>  drivers/iommu/sprd-iommu.c              | 7 ++-----
>  drivers/iommu/sun50i-iommu.c            | 9 +++------
>  drivers/iommu/tegra-smmu.c              | 7 ++-----
>  8 files changed, 17 insertions(+), 40 deletions(-)
> 

Tested-by: Yong Wu <yong.wu@mediatek.com>  #For mtk_iommu.c

Thanks.
diff mbox series

Patch

diff --git a/drivers/iommu/arm/arm-smmu/qcom_iommu.c b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
index bc45d18f350cb9..97b2122032b237 100644
--- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c
+++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
@@ -332,12 +332,10 @@  static int qcom_iommu_init_domain(struct iommu_domain *domain,
 	return ret;
 }
 
-static struct iommu_domain *qcom_iommu_domain_alloc(unsigned type)
+static struct iommu_domain *qcom_iommu_domain_alloc_paging(struct device *dev)
 {
 	struct qcom_iommu_domain *qcom_domain;
 
-	if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA)
-		return NULL;
 	/*
 	 * Allocate the domain and initialise some of its data structures.
 	 * We can't really do anything meaningful until we've added a
@@ -605,7 +603,7 @@  static int qcom_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
 static const struct iommu_ops qcom_iommu_ops = {
 	.identity_domain = &qcom_iommu_identity_domain,
 	.capable	= qcom_iommu_capable,
-	.domain_alloc	= qcom_iommu_domain_alloc,
+	.domain_alloc_paging = qcom_iommu_domain_alloc_paging,
 	.probe_device	= qcom_iommu_probe_device,
 	.device_group	= generic_device_group,
 	.of_xlate	= qcom_iommu_of_xlate,
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 5e12b85dfe8705..d6dead2ed10c11 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -887,7 +887,7 @@  static inline void exynos_iommu_set_pte(sysmmu_pte_t *ent, sysmmu_pte_t val)
 				   DMA_TO_DEVICE);
 }
 
-static struct iommu_domain *exynos_iommu_domain_alloc(unsigned type)
+static struct iommu_domain *exynos_iommu_domain_alloc_paging(struct device *dev)
 {
 	struct exynos_iommu_domain *domain;
 	dma_addr_t handle;
@@ -896,9 +896,6 @@  static struct iommu_domain *exynos_iommu_domain_alloc(unsigned type)
 	/* Check if correct PTE offsets are initialized */
 	BUG_ON(PG_ENT_SHIFT < 0 || !dma_dev);
 
-	if (type != IOMMU_DOMAIN_DMA && type != IOMMU_DOMAIN_UNMANAGED)
-		return NULL;
-
 	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 	if (!domain)
 		return NULL;
@@ -1472,7 +1469,7 @@  static int exynos_iommu_of_xlate(struct device *dev,
 
 static const struct iommu_ops exynos_iommu_ops = {
 	.identity_domain = &exynos_identity_domain,
-	.domain_alloc = exynos_iommu_domain_alloc,
+	.domain_alloc_paging = exynos_iommu_domain_alloc_paging,
 	.device_group = generic_device_group,
 	.probe_device = exynos_iommu_probe_device,
 	.release_device = exynos_iommu_release_device,
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 04830d3931d239..eaabae76157761 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -563,13 +563,10 @@  static irqreturn_t ipmmu_irq(int irq, void *dev)
  * IOMMU Operations
  */
 
-static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
+static struct iommu_domain *ipmmu_domain_alloc_paging(struct device *dev)
 {
 	struct ipmmu_vmsa_domain *domain;
 
-	if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA)
-		return NULL;
-
 	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 	if (!domain)
 		return NULL;
@@ -892,7 +889,7 @@  static struct iommu_group *ipmmu_find_group(struct device *dev)
 
 static const struct iommu_ops ipmmu_ops = {
 	.identity_domain = &ipmmu_iommu_identity_domain,
-	.domain_alloc = ipmmu_domain_alloc,
+	.domain_alloc_paging = ipmmu_domain_alloc_paging,
 	.probe_device = ipmmu_probe_device,
 	.release_device = ipmmu_release_device,
 	.probe_finalize = ipmmu_probe_finalize,
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 164f9759e1c039..19ef50221c93db 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -689,13 +689,10 @@  static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom,
 	return 0;
 }
 
-static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
+static struct iommu_domain *mtk_iommu_domain_alloc_paging(struct device *dev)
 {
 	struct mtk_iommu_domain *dom;
 
-	if (type != IOMMU_DOMAIN_DMA && type != IOMMU_DOMAIN_UNMANAGED)
-		return NULL;
-
 	dom = kzalloc(sizeof(*dom), GFP_KERNEL);
 	if (!dom)
 		return NULL;
@@ -1019,7 +1016,7 @@  static void mtk_iommu_get_resv_regions(struct device *dev,
 
 static const struct iommu_ops mtk_iommu_ops = {
 	.identity_domain = &mtk_iommu_identity_domain,
-	.domain_alloc	= mtk_iommu_domain_alloc,
+	.domain_alloc_paging = mtk_iommu_domain_alloc_paging,
 	.probe_device	= mtk_iommu_probe_device,
 	.release_device	= mtk_iommu_release_device,
 	.device_group	= mtk_iommu_device_group,
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index a582525d36f8cc..5deb64b9cbe4b5 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1043,13 +1043,10 @@  static int rk_iommu_attach_device(struct iommu_domain *domain,
 	return ret;
 }
 
-static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
+static struct iommu_domain *rk_iommu_domain_alloc_paging(struct device *dev)
 {
 	struct rk_iommu_domain *rk_domain;
 
-	if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA)
-		return NULL;
-
 	if (!dma_dev)
 		return NULL;
 
@@ -1172,7 +1169,7 @@  static int rk_iommu_of_xlate(struct device *dev,
 
 static const struct iommu_ops rk_iommu_ops = {
 	.identity_domain = &rk_identity_domain,
-	.domain_alloc = rk_iommu_domain_alloc,
+	.domain_alloc_paging = rk_iommu_domain_alloc_paging,
 	.probe_device = rk_iommu_probe_device,
 	.release_device = rk_iommu_release_device,
 	.device_group = rk_iommu_device_group,
diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c
index 2fa9afebd4f5f0..0642f0a3a32ab5 100644
--- a/drivers/iommu/sprd-iommu.c
+++ b/drivers/iommu/sprd-iommu.c
@@ -134,13 +134,10 @@  sprd_iommu_pgt_size(struct iommu_domain *domain)
 		SPRD_IOMMU_PAGE_SHIFT) * sizeof(u32);
 }
 
-static struct iommu_domain *sprd_iommu_domain_alloc(unsigned int domain_type)
+static struct iommu_domain *sprd_iommu_domain_alloc_paging(struct device *dev)
 {
 	struct sprd_iommu_domain *dom;
 
-	if (domain_type != IOMMU_DOMAIN_DMA && domain_type != IOMMU_DOMAIN_UNMANAGED)
-		return NULL;
-
 	dom = kzalloc(sizeof(*dom), GFP_KERNEL);
 	if (!dom)
 		return NULL;
@@ -421,7 +418,7 @@  static int sprd_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
 
 
 static const struct iommu_ops sprd_iommu_ops = {
-	.domain_alloc	= sprd_iommu_domain_alloc,
+	.domain_alloc_paging = sprd_iommu_domain_alloc_paging,
 	.probe_device	= sprd_iommu_probe_device,
 	.device_group	= sprd_iommu_device_group,
 	.of_xlate	= sprd_iommu_of_xlate,
diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index 0bf08b120cf105..d6629b0a9389f4 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -667,14 +667,11 @@  static phys_addr_t sun50i_iommu_iova_to_phys(struct iommu_domain *domain,
 		sun50i_iova_get_page_offset(iova);
 }
 
-static struct iommu_domain *sun50i_iommu_domain_alloc(unsigned type)
+static struct iommu_domain *
+sun50i_iommu_domain_alloc_paging(struct device *dev)
 {
 	struct sun50i_iommu_domain *sun50i_domain;
 
-	if (type != IOMMU_DOMAIN_DMA &&
-	    type != IOMMU_DOMAIN_UNMANAGED)
-		return NULL;
-
 	sun50i_domain = kzalloc(sizeof(*sun50i_domain), GFP_KERNEL);
 	if (!sun50i_domain)
 		return NULL;
@@ -840,7 +837,7 @@  static const struct iommu_ops sun50i_iommu_ops = {
 	.identity_domain = &sun50i_iommu_identity_domain,
 	.pgsize_bitmap	= SZ_4K,
 	.device_group	= sun50i_iommu_device_group,
-	.domain_alloc	= sun50i_iommu_domain_alloc,
+	.domain_alloc_paging = sun50i_iommu_domain_alloc_paging,
 	.of_xlate	= sun50i_iommu_of_xlate,
 	.probe_device	= sun50i_iommu_probe_device,
 	.default_domain_ops = &(const struct iommu_domain_ops) {
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index b91ad1b5a20d36..1764a63347b046 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -272,13 +272,10 @@  static void tegra_smmu_free_asid(struct tegra_smmu *smmu, unsigned int id)
 	clear_bit(id, smmu->asids);
 }
 
-static struct iommu_domain *tegra_smmu_domain_alloc(unsigned type)
+static struct iommu_domain *tegra_smmu_domain_alloc_paging(struct device *dev)
 {
 	struct tegra_smmu_as *as;
 
-	if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA)
-		return NULL;
-
 	as = kzalloc(sizeof(*as), GFP_KERNEL);
 	if (!as)
 		return NULL;
@@ -991,7 +988,7 @@  static int tegra_smmu_def_domain_type(struct device *dev)
 static const struct iommu_ops tegra_smmu_ops = {
 	.identity_domain = &tegra_smmu_identity_domain,
 	.def_domain_type = &tegra_smmu_def_domain_type,
-	.domain_alloc = tegra_smmu_domain_alloc,
+	.domain_alloc_paging = tegra_smmu_domain_alloc_paging,
 	.probe_device = tegra_smmu_probe_device,
 	.device_group = tegra_smmu_device_group,
 	.of_xlate = tegra_smmu_of_xlate,