source "drivers/staging/unisys/visorutil/Kconfig"
source "drivers/staging/unisys/visorchannel/Kconfig"
source "drivers/staging/unisys/visorchipset/Kconfig"
-source "drivers/staging/unisys/channels/Kconfig"
source "drivers/staging/unisys/uislib/Kconfig"
source "drivers/staging/unisys/virtpci/Kconfig"
source "drivers/staging/unisys/virthba/Kconfig"
obj-$(CONFIG_UNISYS_VISORUTIL) += visorutil/
obj-$(CONFIG_UNISYS_VISORCHANNEL) += visorchannel/
obj-$(CONFIG_UNISYS_VISORCHIPSET) += visorchipset/
-obj-$(CONFIG_UNISYS_CHANNELSTUB) += channels/
obj-$(CONFIG_UNISYS_UISLIB) += uislib/
obj-$(CONFIG_UNISYS_VIRTPCI) += virtpci/
obj-$(CONFIG_UNISYS_VIRTHBA) += virthba/
+++ /dev/null
-#
-# Unisys channels configuration
-#
-
-config UNISYS_CHANNELSTUB
- tristate "Unisys channelstub driver"
- depends on UNISYSSPAR && UNISYS_VISORUTIL
- ---help---
- If you say Y here, you will enable the Unisys channels driver.
-
+++ /dev/null
-#
-# Makefile for Unisys channelstub
-#
-
-obj-$(CONFIG_UNISYS_CHANNELSTUB) += visorchannelstub.o
-
-visorchannelstub-y := channel.o chanstub.o
-
-ccflags-y += -Idrivers/staging/unisys/include
-ccflags-y += -Idrivers/staging/unisys/common-spar/include
-ccflags-y += -Idrivers/staging/unisys/common-spar/include/channels
+++ /dev/null
-/* Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#include <linux/kernel.h>
-#ifdef CONFIG_MODVERSIONS
-#include <config/modversions.h>
-#endif
-#include <linux/module.h>
-#include <linux/init.h> /* for module_init and module_exit */
-#include <linux/slab.h> /* for memcpy */
-#include <linux/types.h>
-
-/* Implementation of exported functions for Supervisor channels */
-#include "channel.h"
-
-/*
- * Routine Description:
- * Tries to insert the prebuilt signal pointed to by pSignal into the nth
- * Queue of the Channel pointed to by pChannel
- *
- * Parameters:
- * pChannel: (IN) points to the IO Channel
- * Queue: (IN) nth Queue of the IO Channel
- * pSignal: (IN) pointer to the signal
- *
- * Assumptions:
- * - pChannel, Queue and pSignal are valid.
- * - If insertion fails due to a full queue, the caller will determine the
- * retry policy (e.g. wait & try again, report an error, etc.).
- *
- * Return value:
- * 1 if the insertion succeeds, 0 if the queue was full.
- */
-unsigned char spar_signal_insert(struct channel_header __iomem *ch, u32 queue,
- void *sig)
-{
- void __iomem *psignal;
- unsigned int head, tail, nof;
-
- struct signal_queue_header __iomem *pqhdr =
- (struct signal_queue_header __iomem *)
- ((char __iomem *)ch + readq(&ch->ch_space_offset))
- + queue;
-
- /* capture current head and tail */
- head = readl(&pqhdr->head);
- tail = readl(&pqhdr->tail);
-
- /* queue is full if (head + 1) % n equals tail */
- if (((head + 1) % readl(&pqhdr->max_slots)) == tail) {
- nof = readq(&pqhdr->num_overflows) + 1;
- writeq(nof, &pqhdr->num_overflows);
- return 0;
- }
-
- /* increment the head index */
- head = (head + 1) % readl(&pqhdr->max_slots);
-
- /* copy signal to the head location from the area pointed to
- * by pSignal
- */
- psignal = (char __iomem *)pqhdr + readq(&pqhdr->sig_base_offset) +
- (head * readl(&pqhdr->signal_size));
- memcpy_toio(psignal, sig, readl(&pqhdr->signal_size));
-
- mb(); /* channel synch */
- writel(head, &pqhdr->head);
-
- writeq(readq(&pqhdr->num_sent) + 1, &pqhdr->num_sent);
- return 1;
-}
-EXPORT_SYMBOL_GPL(spar_signal_insert);
-
-/*
- * Routine Description:
- * Removes one signal from Channel pChannel's nth Queue at the
- * time of the call and copies it into the memory pointed to by
- * pSignal.
- *
- * Parameters:
- * pChannel: (IN) points to the IO Channel
- * Queue: (IN) nth Queue of the IO Channel
- * pSignal: (IN) pointer to where the signals are to be copied
- *
- * Assumptions:
- * - pChannel and Queue are valid.
- * - pSignal points to a memory area large enough to hold queue's SignalSize
- *
- * Return value:
- * 1 if the removal succeeds, 0 if the queue was empty.
- */
-unsigned char
-spar_signal_remove(struct channel_header __iomem *ch, u32 queue, void *sig)
-{
- void __iomem *psource;
- unsigned int head, tail;
- struct signal_queue_header __iomem *pqhdr =
- (struct signal_queue_header __iomem *)((char __iomem *)ch +
- readq(&ch->ch_space_offset)) + queue;
-
- /* capture current head and tail */
- head = readl(&pqhdr->head);
- tail = readl(&pqhdr->tail);
-
- /* queue is empty if the head index equals the tail index */
- if (head == tail) {
- writeq(readq(&pqhdr->num_empty) + 1, &pqhdr->num_empty);
- return 0;
- }
-
- /* advance past the 'empty' front slot */
- tail = (tail + 1) % readl(&pqhdr->max_slots);
-
- /* copy signal from tail location to the area pointed to by pSignal */
- psource = (char __iomem *)pqhdr + readq(&pqhdr->sig_base_offset) +
- (tail * readl(&pqhdr->signal_size));
- memcpy_fromio(sig, psource, readl(&pqhdr->signal_size));
-
- mb(); /* channel synch */
- writel(tail, &pqhdr->tail);
-
- writeq(readq(&pqhdr->num_received) + 1,
- &pqhdr->num_received);
- return 1;
-}
-EXPORT_SYMBOL_GPL(spar_signal_remove);
-
-/*
- * Routine Description:
- * Removes all signals present in Channel pChannel's nth Queue at the
- * time of the call and copies them into the memory pointed to by
- * pSignal. Returns the # of signals copied as the value of the routine.
- *
- * Parameters:
- * pChannel: (IN) points to the IO Channel
- * Queue: (IN) nth Queue of the IO Channel
- * pSignal: (IN) pointer to where the signals are to be copied
- *
- * Assumptions:
- * - pChannel and Queue are valid.
- * - pSignal points to a memory area large enough to hold Queue's MaxSignals
- * # of signals, each of which is Queue's SignalSize.
- *
- * Return value:
- * # of signals copied.
- */
-unsigned int spar_signal_remove_all(struct channel_header *ch, u32 queue,
- void *sig)
-{
- void *psource;
- unsigned int head, tail, count = 0;
- struct signal_queue_header *pqhdr =
- (struct signal_queue_header *)((char *)ch +
- ch->ch_space_offset) + queue;
-
- /* capture current head and tail */
- head = pqhdr->head;
- tail = pqhdr->tail;
-
- /* queue is empty if the head index equals the tail index */
- if (head == tail)
- return 0;
-
- while (head != tail) {
- /* advance past the 'empty' front slot */
- tail = (tail + 1) % pqhdr->max_slots;
-
- /* copy signal from tail location to the area pointed
- * to by pSignal
- */
- psource =
- (char *)pqhdr + pqhdr->sig_base_offset +
- (tail * pqhdr->signal_size);
- memcpy((char *)sig + (pqhdr->signal_size * count),
- psource, pqhdr->signal_size);
-
- mb(); /* channel synch */
- pqhdr->tail = tail;
-
- count++;
- pqhdr->num_received++;
- }
-
- return count;
-}
-
-/*
- * Routine Description:
- * Determine whether a signal queue is empty.
- *
- * Parameters:
- * pChannel: (IN) points to the IO Channel
- * Queue: (IN) nth Queue of the IO Channel
- *
- * Return value:
- * 1 if the signal queue is empty, 0 otherwise.
- */
-unsigned char spar_signalqueue_empty(struct channel_header __iomem *ch,
- u32 queue)
-{
- struct signal_queue_header __iomem *pqhdr =
- (struct signal_queue_header __iomem *)((char __iomem *)ch +
- readq(&ch->ch_space_offset)) + queue;
- return readl(&pqhdr->head) == readl(&pqhdr->tail);
-}
-EXPORT_SYMBOL_GPL(spar_signalqueue_empty);
-
+++ /dev/null
-/* Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#define EXPORT_SYMTAB
-#include <linux/kernel.h>
-#ifdef CONFIG_MODVERSIONS
-#include <config/modversions.h>
-#endif
-#include <linux/module.h>
-#include <linux/init.h> /* for module_init and module_exit */
-#include <linux/slab.h> /* for memcpy */
-#include <linux/types.h>
-
-#include "channel.h"
-#include "chanstub.h"
-#include "timskmod.h"
-#include "version.h"
-
-static __init int
-channel_mod_init(void)
-{
- if (!unisys_spar_platform)
- return -ENODEV;
- return 0;
-}
-
-static __exit void
-channel_mod_exit(void)
-{
-}
-
-unsigned char
-SignalInsert_withLock(struct channel_header __iomem *pChannel, u32 Queue,
- void *pSignal, spinlock_t *lock)
-{
- unsigned char result;
- unsigned long flags;
-
- spin_lock_irqsave(lock, flags);
- result = spar_signal_insert(pChannel, Queue, pSignal);
- spin_unlock_irqrestore(lock, flags);
- return result;
-}
-
-unsigned char
-SignalRemove_withLock(struct channel_header __iomem *pChannel, u32 Queue,
- void *pSignal, spinlock_t *lock)
-{
- unsigned char result;
-
- spin_lock(lock);
- result = spar_signal_remove(pChannel, Queue, pSignal);
- spin_unlock(lock);
- return result;
-}
-
-module_init(channel_mod_init);
-module_exit(channel_mod_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Bryan Glaudel");
-MODULE_ALIAS("uischan");
- /* this is extracted during depmod and kept in modules.dep */
+++ /dev/null
-/* Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#ifndef __CHANSTUB_H__
-#define __CHANSTUB_H__
-unsigned char SignalInsert_withLock(struct channel_header __iomem *pChannel,
- u32 Queue, void *pSignal, spinlock_t *lock);
-unsigned char SignalRemove_withLock(struct channel_header __iomem *pChannel,
- u32 Queue, void *pSignal, spinlock_t *lock);
-
-#endif
config UNISYS_UISLIB
tristate "Unisys uislib driver"
- depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_CHANNELSTUB && HAS_IOMEM
+ depends on UNISYSSPAR && UNISYS_VISORCHIPSET && HAS_IOMEM
---help---
If you say Y here, you will enable the Unisys uislib driver.
#include "sparstop.h"
#include "visorchipset.h"
-#include "chanstub.h"
#include "version.h"
#include "guestlinuxdebug.h"
#include "uisutils.h"
-#include "chanstub.h"
-
/* this is shorter than using __FILE__ (full path name) in
* debug/info/error messages */
#define CURRENT_FILE_PC UISLIB_PC_uisqueue_c
/*****************************************************/
/* Exported functions */
/*****************************************************/
+
+/*
+ * Routine Description:
+ * Tries to insert the prebuilt signal pointed to by pSignal into the nth
+ * Queue of the Channel pointed to by pChannel
+ *
+ * Parameters:
+ * pChannel: (IN) points to the IO Channel
+ * Queue: (IN) nth Queue of the IO Channel
+ * pSignal: (IN) pointer to the signal
+ *
+ * Assumptions:
+ * - pChannel, Queue and pSignal are valid.
+ * - If insertion fails due to a full queue, the caller will determine the
+ * retry policy (e.g. wait & try again, report an error, etc.).
+ *
+ * Return value:
+ * 1 if the insertion succeeds, 0 if the queue was full.
+ */
+unsigned char spar_signal_insert(struct channel_header __iomem *ch, u32 queue,
+ void *sig)
+{
+ void __iomem *psignal;
+ unsigned int head, tail, nof;
+
+ struct signal_queue_header __iomem *pqhdr =
+ (struct signal_queue_header __iomem *)
+ ((char __iomem *)ch + readq(&ch->ch_space_offset))
+ + queue;
+
+ /* capture current head and tail */
+ head = readl(&pqhdr->head);
+ tail = readl(&pqhdr->tail);
+
+ /* queue is full if (head + 1) % n equals tail */
+ if (((head + 1) % readl(&pqhdr->max_slots)) == tail) {
+ nof = readq(&pqhdr->num_overflows) + 1;
+ writeq(nof, &pqhdr->num_overflows);
+ return 0;
+ }
+
+ /* increment the head index */
+ head = (head + 1) % readl(&pqhdr->max_slots);
+
+ /* copy signal to the head location from the area pointed to
+ * by pSignal
+ */
+ psignal = (char __iomem *)pqhdr + readq(&pqhdr->sig_base_offset) +
+ (head * readl(&pqhdr->signal_size));
+ memcpy_toio(psignal, sig, readl(&pqhdr->signal_size));
+
+ mb(); /* channel synch */
+ writel(head, &pqhdr->head);
+
+ writeq(readq(&pqhdr->num_sent) + 1, &pqhdr->num_sent);
+ return 1;
+}
+EXPORT_SYMBOL_GPL(spar_signal_insert);
+
+/*
+ * Routine Description:
+ * Removes one signal from Channel pChannel's nth Queue at the
+ * time of the call and copies it into the memory pointed to by
+ * pSignal.
+ *
+ * Parameters:
+ * pChannel: (IN) points to the IO Channel
+ * Queue: (IN) nth Queue of the IO Channel
+ * pSignal: (IN) pointer to where the signals are to be copied
+ *
+ * Assumptions:
+ * - pChannel and Queue are valid.
+ * - pSignal points to a memory area large enough to hold queue's SignalSize
+ *
+ * Return value:
+ * 1 if the removal succeeds, 0 if the queue was empty.
+ */
+unsigned char
+spar_signal_remove(struct channel_header __iomem *ch, u32 queue, void *sig)
+{
+ void __iomem *psource;
+ unsigned int head, tail;
+ struct signal_queue_header __iomem *pqhdr =
+ (struct signal_queue_header __iomem *)((char __iomem *)ch +
+ readq(&ch->ch_space_offset)) + queue;
+
+ /* capture current head and tail */
+ head = readl(&pqhdr->head);
+ tail = readl(&pqhdr->tail);
+
+ /* queue is empty if the head index equals the tail index */
+ if (head == tail) {
+ writeq(readq(&pqhdr->num_empty) + 1, &pqhdr->num_empty);
+ return 0;
+ }
+
+ /* advance past the 'empty' front slot */
+ tail = (tail + 1) % readl(&pqhdr->max_slots);
+
+ /* copy signal from tail location to the area pointed to by pSignal */
+ psource = (char __iomem *)pqhdr + readq(&pqhdr->sig_base_offset) +
+ (tail * readl(&pqhdr->signal_size));
+ memcpy_fromio(sig, psource, readl(&pqhdr->signal_size));
+
+ mb(); /* channel synch */
+ writel(tail, &pqhdr->tail);
+
+ writeq(readq(&pqhdr->num_received) + 1,
+ &pqhdr->num_received);
+ return 1;
+}
+EXPORT_SYMBOL_GPL(spar_signal_remove);
+
+/*
+ * Routine Description:
+ * Removes all signals present in Channel pChannel's nth Queue at the
+ * time of the call and copies them into the memory pointed to by
+ * pSignal. Returns the # of signals copied as the value of the routine.
+ *
+ * Parameters:
+ * pChannel: (IN) points to the IO Channel
+ * Queue: (IN) nth Queue of the IO Channel
+ * pSignal: (IN) pointer to where the signals are to be copied
+ *
+ * Assumptions:
+ * - pChannel and Queue are valid.
+ * - pSignal points to a memory area large enough to hold Queue's MaxSignals
+ * # of signals, each of which is Queue's SignalSize.
+ *
+ * Return value:
+ * # of signals copied.
+ */
+unsigned int spar_signal_remove_all(struct channel_header *ch, u32 queue,
+ void *sig)
+{
+ void *psource;
+ unsigned int head, tail, count = 0;
+ struct signal_queue_header *pqhdr =
+ (struct signal_queue_header *)((char *)ch +
+ ch->ch_space_offset) + queue;
+
+ /* capture current head and tail */
+ head = pqhdr->head;
+ tail = pqhdr->tail;
+
+ /* queue is empty if the head index equals the tail index */
+ if (head == tail)
+ return 0;
+
+ while (head != tail) {
+ /* advance past the 'empty' front slot */
+ tail = (tail + 1) % pqhdr->max_slots;
+
+ /* copy signal from tail location to the area pointed
+ * to by pSignal
+ */
+ psource =
+ (char *)pqhdr + pqhdr->sig_base_offset +
+ (tail * pqhdr->signal_size);
+ memcpy((char *)sig + (pqhdr->signal_size * count),
+ psource, pqhdr->signal_size);
+
+ mb(); /* channel synch */
+ pqhdr->tail = tail;
+
+ count++;
+ pqhdr->num_received++;
+ }
+
+ return count;
+}
+
+/*
+ * Routine Description:
+ * Determine whether a signal queue is empty.
+ *
+ * Parameters:
+ * pChannel: (IN) points to the IO Channel
+ * Queue: (IN) nth Queue of the IO Channel
+ *
+ * Return value:
+ * 1 if the signal queue is empty, 0 otherwise.
+ */
+unsigned char spar_signalqueue_empty(struct channel_header __iomem *ch,
+ u32 queue)
+{
+ struct signal_queue_header __iomem *pqhdr =
+ (struct signal_queue_header __iomem *)((char __iomem *)ch +
+ readq(&ch->ch_space_offset)) + queue;
+ return readl(&pqhdr->head) == readl(&pqhdr->tail);
+}
+EXPORT_SYMBOL_GPL(spar_signalqueue_empty);
+
unsigned long long
uisqueue_interlocked_or(unsigned long long __iomem *tgt,
unsigned long long set)
config UNISYS_VIRTHBA
tristate "Unisys virthba driver"
- depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_CHANNELSTUB && UNISYS_UISLIB && UNISYS_VIRTPCI && SCSI
+ depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_UISLIB && UNISYS_VIRTPCI && SCSI
---help---
If you say Y here, you will enable the Unisys virthba driver.
projects / platform / kernel / linux-starfive.git / commitdiff