Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/drivers/misc/ocxl/pci.c b/drivers/misc/ocxl/pci.c
new file mode 100644
index 0000000000..cb920aa88d
--- /dev/null
+++ b/drivers/misc/ocxl/pci.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2019 IBM Corp.
+#include <linux/module.h>
+#include "ocxl_internal.h"
+
+/*
+ * Any opencapi device which wants to use this 'generic' driver should
+ * use the 0x062B device ID. Vendors should define the subsystem
+ * vendor/device ID to help differentiate devices.
+ */
+static const struct pci_device_id ocxl_pci_tbl[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x062B), },
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, ocxl_pci_tbl);
+
+static int ocxl_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+	int rc;
+	struct ocxl_afu *afu, *tmp;
+	struct ocxl_fn *fn;
+	struct list_head *afu_list;
+
+	fn = ocxl_function_open(dev);
+	if (IS_ERR(fn))
+		return PTR_ERR(fn);
+
+	pci_set_drvdata(dev, fn);
+
+	afu_list = ocxl_function_afu_list(fn);
+
+	list_for_each_entry_safe(afu, tmp, afu_list, list) {
+		// Cleanup handled within ocxl_file_register_afu()
+		rc = ocxl_file_register_afu(afu);
+		if (rc) {
+			dev_err(&dev->dev, "Failed to register AFU '%s' index %d",
+					afu->config.name, afu->config.idx);
+		}
+	}
+
+	return 0;
+}
+
+static void ocxl_remove(struct pci_dev *dev)
+{
+	struct ocxl_fn *fn;
+	struct ocxl_afu *afu;
+	struct list_head *afu_list;
+
+	fn = pci_get_drvdata(dev);
+	afu_list = ocxl_function_afu_list(fn);
+
+	list_for_each_entry(afu, afu_list, list) {
+		ocxl_file_unregister_afu(afu);
+	}
+
+	ocxl_function_close(fn);
+}
+
+struct pci_driver ocxl_pci_driver = {
+	.name = "ocxl",
+	.id_table = ocxl_pci_tbl,
+	.probe = ocxl_probe,
+	.remove = ocxl_remove,
+	.shutdown = ocxl_remove,
+};