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Diffstat (limited to 'arch/x86/xen/multicalls.h')
-rw-r--r--arch/x86/xen/multicalls.h69
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/x86/xen/multicalls.h b/arch/x86/xen/multicalls.h
deleted file mode 100644
index c3867b585e0d..000000000000
--- a/arch/x86/xen/multicalls.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _XEN_MULTICALLS_H
-#define _XEN_MULTICALLS_H
-
-#include <trace/events/xen.h>
-
-#include "xen-ops.h"
-
-/* Multicalls */
-struct multicall_space
-{
- struct multicall_entry *mc;
- void *args;
-};
-
-/* Allocate room for a multicall and its args */
-struct multicall_space __xen_mc_entry(size_t args);
-
-DECLARE_PER_CPU(unsigned long, xen_mc_irq_flags);
-
-/* Call to start a batch of multiple __xen_mc_entry()s. Must be
- paired with xen_mc_issue() */
-static inline void xen_mc_batch(void)
-{
- unsigned long flags;
-
- /* need to disable interrupts until this entry is complete */
- local_irq_save(flags);
- trace_xen_mc_batch(xen_get_lazy_mode());
- __this_cpu_write(xen_mc_irq_flags, flags);
-}
-
-static inline struct multicall_space xen_mc_entry(size_t args)
-{
- xen_mc_batch();
- return __xen_mc_entry(args);
-}
-
-/* Flush all pending multicalls */
-void xen_mc_flush(void);
-
-/* Issue a multicall if we're not in a lazy mode */
-static inline void xen_mc_issue(unsigned mode)
-{
- trace_xen_mc_issue(mode);
-
- if ((xen_get_lazy_mode() & mode) == 0)
- xen_mc_flush();
-
- /* restore flags saved in xen_mc_batch */
- local_irq_restore(this_cpu_read(xen_mc_irq_flags));
-}
-
-/* Set up a callback to be called when the current batch is flushed */
-void xen_mc_callback(void (*fn)(void *), void *data);
-
-/*
- * Try to extend the arguments of the previous multicall command. The
- * previous command's op must match. If it does, then it attempts to
- * extend the argument space allocated to the multicall entry by
- * arg_size bytes.
- *
- * The returned multicall_space will return with mc pointing to the
- * command on success, or NULL on failure, and args pointing to the
- * newly allocated space.
- */
-struct multicall_space xen_mc_extend_args(unsigned long op, size_t arg_size);
-
-#endif /* _XEN_MULTICALLS_H */