linux-kernel - [PATCH v6 03/10] iommufd: Rename IOMMUFD_OBJ_HW_PAGETABLE to IOMMUFD_OBJ_HWPT

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Message-Id: <20231024150609.46884-4-yi.l.liu@intel.com>
Date:   Tue, 24 Oct 2023 08:06:02 -0700
From:   Yi Liu <yi.l.liu@...el.com>
To:     joro@...tes.org, alex.williamson@...hat.com, jgg@...dia.com,
        kevin.tian@...el.com, robin.murphy@....com,
        baolu.lu@...ux.intel.com
Cc:     cohuck@...hat.com, eric.auger@...hat.com, nicolinc@...dia.com,
        kvm@...r.kernel.org, mjrosato@...ux.ibm.com,
        chao.p.peng@...ux.intel.com, yi.l.liu@...el.com,
        yi.y.sun@...ux.intel.com, peterx@...hat.com, jasowang@...hat.com,
        shameerali.kolothum.thodi@...wei.com, lulu@...hat.com,
        suravee.suthikulpanit@....com, iommu@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        zhenzhong.duan@...el.com, joao.m.martins@...cle.com
Subject: [PATCH v6 03/10] iommufd: Rename IOMMUFD_OBJ_HW_PAGETABLE to IOMMUFD_OBJ_HWPT_PAGING

From: Jason Gunthorpe <jgg@...dia.com>

To add a new IOMMUFD_OBJ_HWPT_NESTED, rename the HWPT object to confine
it to PAGING hwpts/domains. The following patch will separate the hwpt
structure as well.

Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
Signed-off-by: Yi Liu <yi.l.liu@...el.com>
---
 drivers/iommu/iommufd/device.c          | 10 +++++-----
 drivers/iommu/iommufd/hw_pagetable.c    |  2 +-
 drivers/iommu/iommufd/iommufd_private.h |  4 ++--
 drivers/iommu/iommufd/main.c            |  2 +-
 drivers/iommu/iommufd/selftest.c        |  2 +-
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/iommu/iommufd/device.c b/drivers/iommu/iommufd/device.c
index 0a8867487508..449b64e6ef53 100644
--- a/drivers/iommu/iommufd/device.c
+++ b/drivers/iommu/iommufd/device.c
@@ -563,7 +563,7 @@ static int iommufd_device_change_pt(struct iommufd_device *idev, u32 *pt_id,
 		return PTR_ERR(pt_obj);
 
 	switch (pt_obj->type) {
-	case IOMMUFD_OBJ_HW_PAGETABLE: {
+	case IOMMUFD_OBJ_HWPT_PAGING: {
 		struct iommufd_hw_pagetable *hwpt =
 			container_of(pt_obj, struct iommufd_hw_pagetable, obj);
 
@@ -601,8 +601,8 @@ static int iommufd_device_change_pt(struct iommufd_device *idev, u32 *pt_id,
 /**
  * iommufd_device_attach - Connect a device to an iommu_domain
  * @idev: device to attach
- * @pt_id: Input a IOMMUFD_OBJ_IOAS, or IOMMUFD_OBJ_HW_PAGETABLE
- *         Output the IOMMUFD_OBJ_HW_PAGETABLE ID
+ * @pt_id: Input a IOMMUFD_OBJ_IOAS, or IOMMUFD_OBJ_HWPT_PAGING
+ *         Output the IOMMUFD_OBJ_HWPT_PAGING ID
  *
  * This connects the device to an iommu_domain, either automatically or manually
  * selected. Once this completes the device could do DMA.
@@ -630,8 +630,8 @@ EXPORT_SYMBOL_NS_GPL(iommufd_device_attach, IOMMUFD);
 /**
  * iommufd_device_replace - Change the device's iommu_domain
  * @idev: device to change
- * @pt_id: Input a IOMMUFD_OBJ_IOAS, or IOMMUFD_OBJ_HW_PAGETABLE
- *         Output the IOMMUFD_OBJ_HW_PAGETABLE ID
+ * @pt_id: Input a IOMMUFD_OBJ_IOAS, or IOMMUFD_OBJ_HWPT_PAGING
+ *         Output the IOMMUFD_OBJ_HWPT_PAGING ID
  *
  * This is the same as::
  *
diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/hw_pagetable.c
index 97b84d681e09..1c13c3b6368c 100644
--- a/drivers/iommu/iommufd/hw_pagetable.c
+++ b/drivers/iommu/iommufd/hw_pagetable.c
@@ -86,7 +86,7 @@ iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas,
 	if (flags && !ops->domain_alloc_user)
 		return ERR_PTR(-EOPNOTSUPP);
 
-	hwpt = iommufd_object_alloc(ictx, hwpt, IOMMUFD_OBJ_HW_PAGETABLE);
+	hwpt = iommufd_object_alloc(ictx, hwpt, IOMMUFD_OBJ_HWPT_PAGING);
 	if (IS_ERR(hwpt))
 		return hwpt;
 
diff --git a/drivers/iommu/iommufd/iommufd_private.h b/drivers/iommu/iommufd/iommufd_private.h
index 43410fd53157..70bebad63a74 100644
--- a/drivers/iommu/iommufd/iommufd_private.h
+++ b/drivers/iommu/iommufd/iommufd_private.h
@@ -123,7 +123,7 @@ enum iommufd_object_type {
 	IOMMUFD_OBJ_NONE,
 	IOMMUFD_OBJ_ANY = IOMMUFD_OBJ_NONE,
 	IOMMUFD_OBJ_DEVICE,
-	IOMMUFD_OBJ_HW_PAGETABLE,
+	IOMMUFD_OBJ_HWPT_PAGING,
 	IOMMUFD_OBJ_IOAS,
 	IOMMUFD_OBJ_ACCESS,
 #ifdef CONFIG_IOMMUFD_TEST
@@ -256,7 +256,7 @@ static inline struct iommufd_hw_pagetable *
 iommufd_get_hwpt(struct iommufd_ucmd *ucmd, u32 id)
 {
 	return container_of(iommufd_get_object(ucmd->ictx, id,
-					       IOMMUFD_OBJ_HW_PAGETABLE),
+					       IOMMUFD_OBJ_HWPT_PAGING),
 			    struct iommufd_hw_pagetable, obj);
 }
 int iommufd_hwpt_set_dirty_tracking(struct iommufd_ucmd *ucmd);
diff --git a/drivers/iommu/iommufd/main.c b/drivers/iommu/iommufd/main.c
index d50f42a730aa..46198e8948d6 100644
--- a/drivers/iommu/iommufd/main.c
+++ b/drivers/iommu/iommufd/main.c
@@ -488,7 +488,7 @@ static const struct iommufd_object_ops iommufd_object_ops[] = {
 	[IOMMUFD_OBJ_IOAS] = {
 		.destroy = iommufd_ioas_destroy,
 	},
-	[IOMMUFD_OBJ_HW_PAGETABLE] = {
+	[IOMMUFD_OBJ_HWPT_PAGING] = {
 		.destroy = iommufd_hw_pagetable_destroy,
 		.abort = iommufd_hw_pagetable_abort,
 	},
diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c
index a01a38332dc1..d71007234896 100644
--- a/drivers/iommu/iommufd/selftest.c
+++ b/drivers/iommu/iommufd/selftest.c
@@ -442,7 +442,7 @@ get_md_pagetable(struct iommufd_ucmd *ucmd, u32 mockpt_id,
 	struct iommufd_object *obj;
 
 	obj = iommufd_get_object(ucmd->ictx, mockpt_id,
-				 IOMMUFD_OBJ_HW_PAGETABLE);
+				 IOMMUFD_OBJ_HWPT_PAGING);
 	if (IS_ERR(obj))
 		return ERR_CAST(obj);
 	hwpt = container_of(obj, struct iommufd_hw_pagetable, obj);
-- 
2.34.1