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-rw-r--r--arch/mips/netlogic/xlr/fmn.c199
1 files changed, 0 insertions, 199 deletions
diff --git a/arch/mips/netlogic/xlr/fmn.c b/arch/mips/netlogic/xlr/fmn.c
deleted file mode 100644
index f90303f31967..000000000000
--- a/arch/mips/netlogic/xlr/fmn.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * Copyright (c) 2003-2012 Broadcom Corporation
- * All Rights Reserved
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the Broadcom
- * license below:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <linux/kernel.h>
-#include <linux/irqreturn.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-
-#include <asm/mipsregs.h>
-#include <asm/netlogic/interrupt.h>
-#include <asm/netlogic/xlr/fmn.h>
-#include <asm/netlogic/common.h>
-
-#define COP2_CC_INIT_CPU_DEST(dest, conf) \
-do { \
- nlm_write_c2_cc##dest(0, conf[(dest * 8) + 0]); \
- nlm_write_c2_cc##dest(1, conf[(dest * 8) + 1]); \
- nlm_write_c2_cc##dest(2, conf[(dest * 8) + 2]); \
- nlm_write_c2_cc##dest(3, conf[(dest * 8) + 3]); \
- nlm_write_c2_cc##dest(4, conf[(dest * 8) + 4]); \
- nlm_write_c2_cc##dest(5, conf[(dest * 8) + 5]); \
- nlm_write_c2_cc##dest(6, conf[(dest * 8) + 6]); \
- nlm_write_c2_cc##dest(7, conf[(dest * 8) + 7]); \
-} while (0)
-
-struct fmn_message_handler {
- void (*action)(int, int, int, int, struct nlm_fmn_msg *, void *);
- void *arg;
-} msg_handlers[128];
-
-/*
- * FMN interrupt handler. We configure the FMN so that any messages in
- * any of the CPU buckets will trigger an interrupt on the CPU.
- * The message can be from any device on the FMN (like NAE/SAE/DMA).
- * The source station id is used to figure out which of the registered
- * handlers have to be called.
- */
-static irqreturn_t fmn_message_handler(int irq, void *data)
-{
- struct fmn_message_handler *hndlr;
- int bucket, rv;
- int size = 0, code = 0, src_stnid = 0;
- struct nlm_fmn_msg msg;
- uint32_t mflags, bkt_status;
-
- mflags = nlm_cop2_enable_irqsave();
- /* Disable message ring interrupt */
- nlm_fmn_setup_intr(irq, 0);
- while (1) {
- /* 8 bkts per core, [24:31] each bit represents one bucket
- * Bit is Zero if bucket is not empty */
- bkt_status = (nlm_read_c2_status0() >> 24) & 0xff;
- if (bkt_status == 0xff)
- break;
- for (bucket = 0; bucket < 8; bucket++) {
- /* Continue on empty bucket */
- if (bkt_status & (1 << bucket))
- continue;
- rv = nlm_fmn_receive(bucket, &size, &code, &src_stnid,
- &msg);
- if (rv != 0)
- continue;
-
- hndlr = &msg_handlers[src_stnid];
- if (hndlr->action == NULL)
- pr_warn("No msgring handler for stnid %d\n",
- src_stnid);
- else {
- nlm_cop2_disable_irqrestore(mflags);
- hndlr->action(bucket, src_stnid, size, code,
- &msg, hndlr->arg);
- mflags = nlm_cop2_enable_irqsave();
- }
- }
- }
- /* Enable message ring intr, to any thread in core */
- nlm_fmn_setup_intr(irq, (1 << nlm_threads_per_core) - 1);
- nlm_cop2_disable_irqrestore(mflags);
- return IRQ_HANDLED;
-}
-
-void xlr_percpu_fmn_init(void)
-{
- struct xlr_fmn_info *cpu_fmn_info;
- int *bucket_sizes;
- uint32_t flags;
- int id;
-
- BUG_ON(nlm_thread_id() != 0);
- id = nlm_core_id();
-
- bucket_sizes = xlr_board_fmn_config.bucket_size;
- cpu_fmn_info = &xlr_board_fmn_config.cpu[id];
- flags = nlm_cop2_enable_irqsave();
-
- /* Setup bucket sizes for the core. */
- nlm_write_c2_bucksize(0, bucket_sizes[id * 8 + 0]);
- nlm_write_c2_bucksize(1, bucket_sizes[id * 8 + 1]);
- nlm_write_c2_bucksize(2, bucket_sizes[id * 8 + 2]);
- nlm_write_c2_bucksize(3, bucket_sizes[id * 8 + 3]);
- nlm_write_c2_bucksize(4, bucket_sizes[id * 8 + 4]);
- nlm_write_c2_bucksize(5, bucket_sizes[id * 8 + 5]);
- nlm_write_c2_bucksize(6, bucket_sizes[id * 8 + 6]);
- nlm_write_c2_bucksize(7, bucket_sizes[id * 8 + 7]);
-
- /*
- * For sending FMN messages, we need credits on the destination
- * bucket. Program the credits this core has on the 128 possible
- * destination buckets.
- * We cannot use a loop here, because the the first argument has
- * to be a constant integer value.
- */
- COP2_CC_INIT_CPU_DEST(0, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(1, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(2, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(3, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(4, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(5, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(6, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(7, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(8, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(9, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(10, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(11, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(12, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(13, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(14, cpu_fmn_info->credit_config);
- COP2_CC_INIT_CPU_DEST(15, cpu_fmn_info->credit_config);
-
- /* enable FMN interrupts on this CPU */
- nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1);
- nlm_cop2_disable_irqrestore(flags);
-}
-
-
-/*
- * Register a FMN message handler with respect to the source station id
- * @stnid: source station id
- * @action: Handler function pointer
- */
-int nlm_register_fmn_handler(int start_stnid, int end_stnid,
- void (*action)(int, int, int, int, struct nlm_fmn_msg *, void *),
- void *arg)
-{
- int sstnid;
-
- for (sstnid = start_stnid; sstnid <= end_stnid; sstnid++) {
- msg_handlers[sstnid].arg = arg;
- smp_wmb();
- msg_handlers[sstnid].action = action;
- }
- pr_debug("Registered FMN msg handler for stnid %d-%d\n",
- start_stnid, end_stnid);
- return 0;
-}
-
-void nlm_setup_fmn_irq(void)
-{
- uint32_t flags;
-
- /* request irq only once */
- if (request_irq(IRQ_FMN, fmn_message_handler, IRQF_PERCPU, "fmn", NULL))
- pr_err("Failed to request irq %d (fmn)\n", IRQ_FMN);
-
- flags = nlm_cop2_enable_irqsave();
- nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1);
- nlm_cop2_disable_irqrestore(flags);
-}