1a59d1b8e0
Based on 1 normalized pattern(s): 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 see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* IBM ASM Service Processor Device Driver
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*
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* Copyright (C) IBM Corporation, 2004
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*
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* Author: Max Asböck <amax@us.ibm.com>
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*/
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#include "ibmasm.h"
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#include "lowlevel.h"
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#include "i2o.h"
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#include "dot_command.h"
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#include "remote.h"
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static struct i2o_header header = I2O_HEADER_TEMPLATE;
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int ibmasm_send_i2o_message(struct service_processor *sp)
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{
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u32 mfa;
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unsigned int command_size;
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struct i2o_message *message;
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struct command *command = sp->current_command;
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mfa = get_mfa_inbound(sp->base_address);
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if (!mfa)
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return 1;
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command_size = get_dot_command_size(command->buffer);
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header.message_size = outgoing_message_size(command_size);
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message = get_i2o_message(sp->base_address, mfa);
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memcpy_toio(&message->header, &header, sizeof(struct i2o_header));
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memcpy_toio(&message->data, command->buffer, command_size);
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set_mfa_inbound(sp->base_address, mfa);
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return 0;
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}
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irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id)
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{
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u32 mfa;
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struct service_processor *sp = (struct service_processor *)dev_id;
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void __iomem *base_address = sp->base_address;
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char tsbuf[32];
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if (!sp_interrupt_pending(base_address))
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return IRQ_NONE;
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dbg("respond to interrupt at %s\n", get_timestamp(tsbuf));
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if (mouse_interrupt_pending(sp)) {
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ibmasm_handle_mouse_interrupt(sp);
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clear_mouse_interrupt(sp);
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}
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mfa = get_mfa_outbound(base_address);
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if (valid_mfa(mfa)) {
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struct i2o_message *msg = get_i2o_message(base_address, mfa);
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ibmasm_receive_message(sp, &msg->data, incoming_data_size(msg));
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} else
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dbg("didn't get a valid MFA\n");
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set_mfa_outbound(base_address, mfa);
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dbg("finished interrupt at %s\n", get_timestamp(tsbuf));
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return IRQ_HANDLED;
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}
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