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From: Nicolin Chen <nicolinc@nvidia.com>
To: <will@kernel.org>, <robin.murphy@arm.com>, <jgg@nvidia.com>,
	"Jonathan Cameron" <jonathan.cameron@oss.qualcomm.com>
Cc: <joro@8bytes.org>, <bhelgaas@google.com>, <praan@google.com>,
	<kevin.tian@intel.com>, <kees@kernel.org>, <smostafa@google.com>,
	<baolu.lu@linux.intel.com>,
	Jean-Philippe Brucker <jpb@kernel.org>,
	"Eric Auger" <eric.auger@redhat.com>,
	<linux-arm-kernel@lists.infradead.org>, <iommu@lists.linux.dev>,
	<linux-kernel@vger.kernel.org>, <linux-pci@vger.kernel.org>,
	<skaestle@nvidia.com>, <mmarrid@nvidia.com>,
	<skolothumtho@nvidia.com>, <bbiber@nvidia.com>,
	<harsha.v@oss.qualcomm.com>
Subject: [PATCH v4 14/15] PCI/ATS: Export pci_enable_pri() and pci_reset_pri()
Date: Thu, 10 Sep 2026 16:17:06 -0700	[thread overview]
Message-ID: <49ce62ed61bd2c0626bde44aca33c515bc8acaeb.1789081084.git.nicolinc@nvidia.com> (raw)
In-Reply-To: <cover.1789081084.git.nicolinc@nvidia.com>

From: Jean-Philippe Brucker <jean-philippe@linaro.org>

Export pci_enable_pri() and pci_reset_pri() so the SMMUv3 driver, which is
tristate, can use them from its probe path when built as a module.

Link: https://lore.kernel.org/iommu/20201112125519.3987595-9-jean-philippe@linaro.org/
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
[nicolinc: drop stale or already-exported APIs]
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
---
 drivers/pci/ats.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index 9cb23780093dd..b6de3c858d390 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -320,6 +320,7 @@ int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(pci_enable_pri);
 
 /**
  * pci_disable_pri - Disable PRI capability
@@ -399,6 +400,7 @@ int pci_reset_pri(struct pci_dev *pdev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(pci_reset_pri);
 
 /**
  * pci_prg_resp_pasid_required - Return PRG Response PASID Required bit
-- 
2.43.0


  parent reply	other threads:[~2026-09-10 23:18 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-10 23:16 [PATCH v4 00/15] iommu/arm-smmu-v3: Add PRI support Nicolin Chen
2026-09-10 23:16 ` [PATCH v4 01/15] iommu/arm-smmu-v3: Disable the impl before disabling the SMMU on shutdown Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron
2026-09-11 23:17     ` Nicolin Chen
2026-09-10 23:16 ` [PATCH v4 02/15] iommu/arm-smmu-v3: Add arm_smmu_attach_release() Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron
2026-09-10 23:16 ` [PATCH v4 03/15] iommu/arm-smmu-v3: Add Q_POS() macro Nicolin Chen
2026-09-10 23:16 ` [PATCH v4 04/15] iommu/arm-smmu-v3: Drain in-flight fault events on domain detach Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron
2026-09-10 23:16 ` [PATCH v4 05/15] iommu/arm-smmu-v3: Flush in-flight fault work " Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron
2026-09-10 23:16 ` [PATCH v4 06/15] iommu/arm-smmu-v3: Allocate IOPF queue without FEAT_SVA Nicolin Chen
2026-09-10 23:16 ` [PATCH v4 07/15] iommu/arm-smmu-v3: Submit CMDQ_OP_PRI_RESP for IOPF event Nicolin Chen
2026-09-10 23:17 ` [PATCH v4 08/15] iommu/arm-smmu-v3: Disable the queue IRQs before disabling the SMMU Nicolin Chen
2026-09-10 23:17 ` [PATCH v4 09/15] iommu/arm-smmu-v3: Disable PRI when no IRQ handler is registered Nicolin Chen
2026-09-10 23:17 ` [PATCH v4 10/15] iommu/arm-smmu-v3: Support PRI Page Request in arm_smmu_handle_ppr() Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron
2026-09-11 23:16     ` Nicolin Chen
2026-09-14 21:10       ` Jonathan Cameron
2026-09-10 23:17 ` [PATCH v4 11/15] iommu/arm-smmu-v3: Discard partial PRI faults on PRIQ overflow Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron
2026-09-10 23:17 ` [PATCH v4 12/15] iommu/arm-smmu-v3: Allocate IOPF queue for ARM_SMMU_FEAT_PRI Nicolin Chen
2026-09-10 23:17 ` [PATCH v4 13/15] PCI/ATS: Add PRI stubs Nicolin Chen
2026-09-10 23:17 ` Nicolin Chen [this message]
2026-09-10 23:17 ` [PATCH v4 15/15] iommu/arm-smmu-v3: Enable PRI for PCI device in arm_smmu_probe_device() Nicolin Chen
2026-09-11  0:14   ` Jonathan Cameron

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