1 files changed, 0 insertions, 212 deletions
diff --git a/drivers/misc/cxl/base.c b/drivers/misc/cxl/base.c
deleted file mode 100644
index cd54ce6f6230..000000000000
--- a/drivers/misc/cxl/base.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/rcupdate.h>
-#include <asm/errno.h>
-#include <misc/cxl-base.h>
-#include <linux/of_platform.h>
-#include "cxl.h"
-
-/* protected by rcu */
-static struct cxl_calls *cxl_calls;
-
-atomic_t cxl_use_count = ATOMIC_INIT(0);
-EXPORT_SYMBOL(cxl_use_count);
-
-#ifdef CONFIG_CXL_MODULE
-
-static inline struct cxl_calls *cxl_calls_get(void)
-{
-	struct cxl_calls *calls = NULL;
-
-	rcu_read_lock();
-	calls = rcu_dereference(cxl_calls);
-	if (calls && !try_module_get(calls->owner))
-		calls = NULL;
-	rcu_read_unlock();
-
-	return calls;
-}
-
-static inline void cxl_calls_put(struct cxl_calls *calls)
-{
-	BUG_ON(calls != cxl_calls);
-
-	/* we don't need to rcu this, as we hold a reference to the module */
-	module_put(cxl_calls->owner);
-}
-
-#else /* !defined CONFIG_CXL_MODULE */
-
-static inline struct cxl_calls *cxl_calls_get(void)
-{
-	return cxl_calls;
-}
-
-static inline void cxl_calls_put(struct cxl_calls *calls) { }
-
-#endif /* CONFIG_CXL_MODULE */
-
-/* AFU refcount management */
-struct cxl_afu *cxl_afu_get(struct cxl_afu *afu)
-{
-	return (get_device(&afu->dev) == NULL) ? NULL : afu;
-}
-EXPORT_SYMBOL_GPL(cxl_afu_get);
-
-void cxl_afu_put(struct cxl_afu *afu)
-{
-	put_device(&afu->dev);
-}
-EXPORT_SYMBOL_GPL(cxl_afu_put);
-
-void cxl_slbia(struct mm_struct *mm)
-{
-	struct cxl_calls *calls;
-
-	calls = cxl_calls_get();
-	if (!calls)
-		return;
-
-	if (cxl_ctx_in_use())
-	    calls->cxl_slbia(mm);
-
-	cxl_calls_put(calls);
-}
-
-int register_cxl_calls(struct cxl_calls *calls)
-{
-	if (cxl_calls)
-		return -EBUSY;
-
-	rcu_assign_pointer(cxl_calls, calls);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(register_cxl_calls);
-
-void unregister_cxl_calls(struct cxl_calls *calls)
-{
-	BUG_ON(cxl_calls->owner != calls->owner);
-	RCU_INIT_POINTER(cxl_calls, NULL);
-	synchronize_rcu();
-}
-EXPORT_SYMBOL_GPL(unregister_cxl_calls);
-
-int cxl_update_properties(struct device_node *dn,
-			  struct property *new_prop)
-{
-	return of_update_property(dn, new_prop);
-}
-EXPORT_SYMBOL_GPL(cxl_update_properties);
-
-/*
- * API calls into the driver that may be called from the PHB code and must be
- * built in.
- */
-bool cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu)
-{
-	bool ret;
-	struct cxl_calls *calls;
-
-	calls = cxl_calls_get();
-	if (!calls)
-		return false;
-
-	ret = calls->cxl_pci_associate_default_context(dev, afu);
-
-	cxl_calls_put(calls);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(cxl_pci_associate_default_context);
-
-void cxl_pci_disable_device(struct pci_dev *dev)
-{
-	struct cxl_calls *calls;
-
-	calls = cxl_calls_get();
-	if (!calls)
-		return;
-
-	calls->cxl_pci_disable_device(dev);
-
-	cxl_calls_put(calls);
-}
-EXPORT_SYMBOL_GPL(cxl_pci_disable_device);
-
-int cxl_next_msi_hwirq(struct pci_dev *pdev, struct cxl_context **ctx, int *afu_irq)
-{
-	int ret;
-	struct cxl_calls *calls;
-
-	calls = cxl_calls_get();
-	if (!calls)
-		return -EBUSY;
-
-	ret = calls->cxl_next_msi_hwirq(pdev, ctx, afu_irq);
-
-	cxl_calls_put(calls);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(cxl_next_msi_hwirq);
-
-int cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
-{
-	int ret;
-	struct cxl_calls *calls;
-
-	calls = cxl_calls_get();
-	if (!calls)
-		return false;
-
-	ret = calls->cxl_cx4_setup_msi_irqs(pdev, nvec, type);
-
-	cxl_calls_put(calls);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(cxl_cx4_setup_msi_irqs);
-
-void cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev)
-{
-	struct cxl_calls *calls;
-
-	calls = cxl_calls_get();
-	if (!calls)
-		return;
-
-	calls->cxl_cx4_teardown_msi_irqs(pdev);
-
-	cxl_calls_put(calls);
-}
-EXPORT_SYMBOL_GPL(cxl_cx4_teardown_msi_irqs);
-
-static int __init cxl_base_init(void)
-{
-	struct device_node *np;
-	struct platform_device *dev;
-	int count = 0;
-
-	/*
-	 * Scan for compatible devices in guest only
-	 */
-	if (cpu_has_feature(CPU_FTR_HVMODE))
-		return 0;
-
-	for_each_compatible_node(np, NULL, "ibm,coherent-platform-facility") {
-		dev = of_platform_device_create(np, NULL, NULL);
-		if (dev)
-			count++;
-	}
-	pr_devel("Found %d cxl device(s)\n", count);
-	return 0;
-}
-device_initcall(cxl_base_init);