From: <mhonap@nvidia.com>
To: <alex@shazbot.org>, <jgg@ziepe.ca>, <ankita@nvidia.com>,
<jic23@kernel.org>, <dave.jiang@intel.com>,
<alejandro.lucero-palau@amd.com>, <smadhavan@nvidia.com>,
<corbet@lwn.net>, <skhan@linuxfoundation.org>,
<dave@stgolabs.net>, <alison.schofield@intel.com>,
<vishal.l.verma@intel.com>, <iweiny@kernel.org>,
<ming.li@zohomail.com>, <yishaih@nvidia.com>,
<skolothumtho@nvidia.com>, <kevin.tian@intel.com>,
<bhelgaas@google.com>, <dmatlack@google.com>, <kees@kernel.org>,
<gustavoars@kernel.org>
Cc: <cjia@nvidia.com>, <kjaju@nvidia.com>, <vsethi@nvidia.com>,
<zhiw@nvidia.com>, <mhonap@nvidia.com>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<kvm@vger.kernel.org>, <linux-cxl@vger.kernel.org>,
<linux-pci@vger.kernel.org>, <linux-kselftest@vger.kernel.org>,
<linux-hardening@vger.kernel.org>
Subject: [PATCH v4 01/27] cxl: Fix resource.c include path and export cxl_restore_hdm_after_pci_reset
Date: Thu, 13 Aug 2026 15:06:05 +0530 [thread overview]
Message-ID: <20260813093631.2288172-2-mhonap@nvidia.com> (raw)
In-Reply-To: <20260813093631.2288172-1-mhonap@nvidia.com>
From: Manish Honap <mhonap@nvidia.com>
The vfio-cxl Type-2 driver restores the endpoint HDM decoder after a
D3hot->D0 soft reset by calling cxl_restore_hdm_after_pci_reset(), so
export it to the CXL namespace. While here, correct the resource.c
include of the CXL PCI definitions from <cxlpci.h> to <cxl/pci.h>.
Signed-off-by: Manish Honap <mhonap@nvidia.com>
---
drivers/cxl/core/resource.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/cxl/core/resource.c b/drivers/cxl/core/resource.c
index daa5e7fa2509..492ffe8e3576 100644
--- a/drivers/cxl/core/resource.c
+++ b/drivers/cxl/core/resource.c
@@ -16,7 +16,7 @@
#include <linux/pci.h>
#include <linux/slab.h>
-#include <cxlpci.h>
+#include <cxl/pci.h>
#include "cxl.h"
#include "core.h"
@@ -850,6 +850,7 @@ int cxl_restore_hdm_after_pci_reset(struct pci_dev *pdev)
return cxl_reset_save_restored_state(pdev, command);
}
+EXPORT_SYMBOL_NS_GPL(cxl_restore_hdm_after_pci_reset, "CXL");
static void cxl_hdm_range_context_init(struct cxl_hdm_range_context *ctx)
{
--
2.25.1
next prev parent reply other threads:[~2026-08-13 9:37 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 9:36 [PATCH v4 00/27] vfio/pci: Add CXL Type-2 device passthrough support mhonap
2026-08-13 9:36 ` mhonap [this message]
2026-08-13 9:36 ` [PATCH v4 02/27] cxl/regs: Skip sub-block region request for BAR-owning drivers mhonap
2026-08-13 9:36 ` [PATCH v4 03/27] cxl: Move component register defines to uapi/cxl/cxl_regs.h mhonap
2026-08-13 9:36 ` [PATCH v4 04/27] cxl: Establish media readiness in cxl_mem_probe() mhonap
2026-08-13 9:36 ` [PATCH v4 05/27] cxl: Add a function-scoped reset entry for vfio-pci mhonap
2026-08-13 9:36 ` [PATCH v4 06/27] vfio/pci: Add CXL ops registration interface mhonap
2026-08-13 9:36 ` [PATCH v4 07/27] vfio/pci: Detect CXL devices and load vfio-cxl on demand mhonap
2026-08-13 9:36 ` [PATCH v4 08/27] vfio/cxl: Add the vfio-cxl module skeleton mhonap
2026-08-13 9:36 ` [PATCH v4 09/27] vfio/cxl: Create the CXL memory device at bind mhonap
2026-08-13 9:36 ` [PATCH v4 10/27] vfio/cxl: Reject unsupported decoder topologies " mhonap
2026-08-13 9:36 ` [PATCH v4 11/27] vfio/cxl: Own the whole component register BAR mhonap
2026-08-13 9:36 ` [PATCH v4 12/27] vfio/pci: Let a provider exclude a BAR sub-range from mmap mhonap
2026-08-13 9:36 ` [PATCH v4 13/27] vfio/pci: Refuse read/write to an excluded BAR sub-range mhonap
2026-08-13 9:36 ` [PATCH v4 14/27] vfio: Add CXL region type for the HDM region mhonap
2026-08-13 9:36 ` [PATCH v4 15/27] vfio/pci: Call CXL open and close hooks around device use mhonap
2026-08-13 9:36 ` [PATCH v4 16/27] vfio/cxl: Shadow the CXL DVSEC body at open mhonap
2026-08-13 9:36 ` [PATCH v4 17/27] vfio/cxl: Virtualize the CXL DVSEC mhonap
2026-08-13 9:36 ` [PATCH v4 18/27] vfio/cxl: Expose the HDM memory and trap the decoder registers mhonap
2026-08-13 9:36 ` [PATCH v4 19/27] vfio/cxl: Keep the HDM decoder block off the direct BAR mapping mhonap
2026-08-13 9:36 ` [PATCH v4 20/27] vfio/cxl: Emulate the HDM decoder commit handshake mhonap
2026-08-13 9:36 ` [PATCH v4 21/27] vfio/cxl: Describe the CXL device and decoder geometry to userspace mhonap
2026-08-13 9:36 ` [PATCH v4 22/27] vfio/cxl: Revoke the HDM mapping on reset and power transitions mhonap
2026-08-13 9:36 ` [PATCH v4 23/27] vfio/cxl: Refresh the decoder snapshot after a device reset mhonap
2026-08-13 9:36 ` [PATCH v4 24/27] vfio/cxl: Service a guest-triggered CXL reset mhonap
2026-08-13 9:36 ` [PATCH v4 25/27] vfio/pci: Provide an opt-out for the CXL Type-2 extensions mhonap
2026-08-13 9:36 ` [PATCH v4 26/27] Documentation: vfio-pci: Document CXL Type-2 device passthrough mhonap
2026-08-13 9:36 ` [PATCH v4 27/27] selftests/vfio: Add CXL Type-2 passthrough corner-case tests mhonap
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