summaryrefslogtreecommitdiff
path: root/drivers/staging/gasket/gasket_interrupt.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/gasket/gasket_interrupt.h')
-rw-r--r--drivers/staging/gasket/gasket_interrupt.h95
1 files changed, 0 insertions, 95 deletions
diff --git a/drivers/staging/gasket/gasket_interrupt.h b/drivers/staging/gasket/gasket_interrupt.h
deleted file mode 100644
index 85526a1374a1..000000000000
--- a/drivers/staging/gasket/gasket_interrupt.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Gasket common interrupt module. Defines functions for enabling
- * eventfd-triggered interrupts between a Gasket device and a host process.
- *
- * Copyright (C) 2018 Google, Inc.
- */
-#ifndef __GASKET_INTERRUPT_H__
-#define __GASKET_INTERRUPT_H__
-
-#include <linux/eventfd.h>
-#include <linux/pci.h>
-
-#include "gasket_core.h"
-
-/* Note that this currently assumes that device interrupts are a dense set,
- * numbered from 0 - (num_interrupts - 1). Should this have to change, these
- * APIs will have to be updated.
- */
-
-/* Opaque type used to hold interrupt subsystem data. */
-struct gasket_interrupt_data;
-
-/*
- * Initialize the interrupt module.
- * @gasket_dev: The Gasket device structure for the device to be initted.
- */
-int gasket_interrupt_init(struct gasket_dev *gasket_dev);
-
-/*
- * Clean up a device's interrupt structure.
- * @gasket_dev: The Gasket information structure for this device.
- *
- * Cleans up the device's interrupts and deallocates data.
- */
-void gasket_interrupt_cleanup(struct gasket_dev *gasket_dev);
-
-/*
- * Clean up and re-initialize the MSI-x subsystem.
- * @gasket_dev: The Gasket information structure for this device.
- *
- * Performs a teardown of the MSI-x subsystem and re-initializes it. Does not
- * free the underlying data structures. Returns 0 on success and an error code
- * on error.
- */
-int gasket_interrupt_reinit(struct gasket_dev *gasket_dev);
-
-/*
- * Reset the counts stored in the interrupt subsystem.
- * @gasket_dev: The Gasket information structure for this device.
- *
- * Sets the counts of all interrupts in the subsystem to 0.
- */
-int gasket_interrupt_reset_counts(struct gasket_dev *gasket_dev);
-
-/*
- * Associates an eventfd with a device interrupt.
- * @data: Pointer to device interrupt data.
- * @interrupt: The device interrupt to configure.
- * @event_fd: The eventfd to associate with the interrupt.
- *
- * Prepares the host to receive notification of device interrupts by associating
- * event_fd with interrupt. Upon receipt of a device interrupt, event_fd will be
- * signaled, after successful configuration.
- *
- * Returns 0 on success, a negative error code otherwise.
- */
-int gasket_interrupt_set_eventfd(struct gasket_interrupt_data *interrupt_data,
- int interrupt, int event_fd);
-
-/*
- * Removes an interrupt-eventfd association.
- * @data: Pointer to device interrupt data.
- * @interrupt: The device interrupt to de-associate.
- *
- * Removes any eventfd associated with the specified interrupt, if any.
- */
-int gasket_interrupt_clear_eventfd(struct gasket_interrupt_data *interrupt_data,
- int interrupt);
-
-/*
- * The below functions exist for backwards compatibility.
- * No new uses should be written.
- */
-/*
- * Get the health of the interrupt subsystem.
- * @gasket_dev: The Gasket device struct.
- *
- * Returns DEAD if not set up, LAMED if initialization failed, and ALIVE
- * otherwise.
- */
-
-int gasket_interrupt_system_status(struct gasket_dev *gasket_dev);
-
-#endif