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From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
To: <jgg@nvidia.com>, <nicolinc@nvidia.com>
Cc: <linux-kernel@vger.kernel.org>, <robin.murphy@arm.com>,
	<will@kernel.org>, <joro@8bytes.org>, <kevin.tian@intel.com>,
	<jsnitsel@redhat.com>, <vasant.hegde@amd.com>,
	<iommu@lists.linux.dev>, <santosh.shukla@amd.com>,
	<sairaj.arunkodilkar@amd.com>, <jon.grimm@amd.com>,
	<prashanthpra@google.com>, <wvw@google.com>, <wnliu@google.com>,
	<gptran@google.com>, <kpsingh@google.com>,
	<joao.m.martins@oracle.com>, <alejandro.j.jimenez@oracle.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: [PATCH v6 03/13] iommu/amd: Make amd_iommu_make_clear_dte() non-static inline
Date: Thu, 15 Jan 2026 06:08:04 +0000	[thread overview]
Message-ID: <20260115060814.10692-4-suravee.suthikulpanit@amd.com> (raw)
In-Reply-To: <20260115060814.10692-1-suravee.suthikulpanit@amd.com>

This will be reused in a new nested.c file for nested translation.

Also, remove unused function parameter ptr.

Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
 drivers/iommu/amd/amd_iommu.h |  8 ++++++++
 drivers/iommu/amd/iommu.c     | 13 ++-----------
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index b742ef1adb35..8eb5e9857079 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h
@@ -190,4 +190,12 @@ void amd_iommu_domain_set_pgtable(struct protection_domain *domain,
 struct dev_table_entry *get_dev_table(struct amd_iommu *iommu);
 struct iommu_dev_data *search_dev_data(struct amd_iommu *iommu, u16 devid);
 
+static inline void
+amd_iommu_make_clear_dte(struct iommu_dev_data *dev_data, struct dev_table_entry *new)
+{
+	/* All existing DTE must have V bit set */
+	new->data128[0] = DTE_FLAG_V;
+	new->data128[1] = 0;
+}
+
 #endif /* AMD_IOMMU_H */
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 2ab0f3c98425..ded8d4ba86e3 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -2011,14 +2011,6 @@ int amd_iommu_clear_gcr3(struct iommu_dev_data *dev_data, ioasid_t pasid)
 	return ret;
 }
 
-static void make_clear_dte(struct iommu_dev_data *dev_data, struct dev_table_entry *ptr,
-			   struct dev_table_entry *new)
-{
-	/* All existing DTE must have V bit set */
-	new->data128[0] = DTE_FLAG_V;
-	new->data128[1] = 0;
-}
-
 /*
  * Note:
  * The old value for GCR3 table and GPT have been cleared from caller.
@@ -2068,7 +2060,7 @@ static void set_dte_entry(struct amd_iommu *iommu,
 	struct dev_table_entry *dte = &get_dev_table(iommu)[dev_data->devid];
 	struct pt_iommu_amdv1_hw_info pt_info;
 
-	make_clear_dte(dev_data, dte, &new);
+	amd_iommu_make_clear_dte(dev_data, &new);
 
 	if (gcr3_info && gcr3_info->gcr3_tbl)
 		domid = dev_data->gcr3_info.domid;
@@ -2149,9 +2141,8 @@ static void set_dte_entry(struct amd_iommu *iommu,
 static void clear_dte_entry(struct amd_iommu *iommu, struct iommu_dev_data *dev_data)
 {
 	struct dev_table_entry new = {};
-	struct dev_table_entry *dte = &get_dev_table(iommu)[dev_data->devid];
 
-	make_clear_dte(dev_data, dte, &new);
+	amd_iommu_make_clear_dte(dev_data, &new);
 	update_dte256(iommu, dev_data, &new);
 }
 
-- 
2.34.1


  parent reply	other threads:[~2026-01-15  6:09 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-15  6:08 [PATCH v6 00/13] iommu/amd: Introduce Nested Translation support Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 01/13] iommu/amd: Add support for hw_info for iommu capability query Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 02/13] iommu/amd: Rename DEV_DOMID_MASK to DTE_DOMID_MASK Suravee Suthikulpanit
2026-01-15  6:08 ` Suravee Suthikulpanit [this message]
2026-01-15  6:08 ` [PATCH v6 04/13] iommu/amd: Introduce helper function amd_iommu_update_dte() Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 05/13] iommufd: Introduce data struct for AMD nested domain allocation Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 06/13] iommu/amd: Always enable GCR3TRPMode when supported Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 07/13] iommu/amd: Add support for nest parent domain allocation Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 08/13] iommu/amd: Introduce struct amd_iommu_viommu Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 09/13] iommu/amd: Add support for nested domain allocation Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 10/13] iommu/amd: Introduce gDomID-to-hDomID Mapping and handle parent domain invalidation Suravee Suthikulpanit
2026-01-19 17:13   ` Jason Gunthorpe
2026-01-15  6:08 ` [PATCH v6 11/13] iommu/amd: Refactor persistent DTE bits programming into amd_iommu_make_clear_dte() Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 12/13] iommu/amd: Refactor logic to program the host page table in DTE Suravee Suthikulpanit
2026-01-15  6:08 ` [PATCH v6 13/13] iommu/amd: Add support for nested domain attach/detach Suravee Suthikulpanit
2026-01-19 17:15   ` Jason Gunthorpe
2026-01-18  9:56 ` [PATCH v6 00/13] iommu/amd: Introduce Nested Translation support Jörg Rödel

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