/*
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* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
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* reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the NetLogic
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* license below:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NLM_HAL_PIC_H
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#define _NLM_HAL_PIC_H
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/* PIC Specific registers */
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#define PIC_CTRL 0x00
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/* PIC control register defines */
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#define PIC_CTRL_ITV 32 /* interrupt timeout value */
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#define PIC_CTRL_ICI 19 /* ICI interrupt timeout enable */
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#define PIC_CTRL_ITE 18 /* interrupt timeout enable */
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#define PIC_CTRL_STE 10 /* system timer interrupt enable */
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#define PIC_CTRL_WWR1 8 /* watchdog 1 wraparound count for reset */
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#define PIC_CTRL_WWR0 6 /* watchdog 0 wraparound count for reset */
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#define PIC_CTRL_WWN1 4 /* watchdog 1 wraparound count for NMI */
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#define PIC_CTRL_WWN0 2 /* watchdog 0 wraparound count for NMI */
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#define PIC_CTRL_WTE 0 /* watchdog timer enable */
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/* PIC Status register defines */
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#define PIC_ICI_STATUS 33 /* ICI interrupt timeout status */
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#define PIC_ITE_STATUS 32 /* interrupt timeout status */
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#define PIC_STS_STATUS 4 /* System timer interrupt status */
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#define PIC_WNS_STATUS 2 /* NMI status for watchdog timers */
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#define PIC_WIS_STATUS 0 /* Interrupt status for watchdog timers */
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/* PIC IPI control register offsets */
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#define PIC_IPICTRL_NMI 32
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#define PIC_IPICTRL_RIV 20 /* received interrupt vector */
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#define PIC_IPICTRL_IDB 16 /* interrupt destination base */
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#define PIC_IPICTRL_DTE 0 /* interrupt destination thread enables */
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/* PIC IRT register offsets */
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#define PIC_IRT_ENABLE 31
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#define PIC_IRT_NMI 29
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#define PIC_IRT_SCH 28 /* Scheduling scheme */
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#define PIC_IRT_RVEC 20 /* Interrupt receive vectors */
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#define PIC_IRT_DT 19 /* Destination type */
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#define PIC_IRT_DB 16 /* Destination base */
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#define PIC_IRT_DTE 0 /* Destination thread enables */
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#define PIC_BYTESWAP 0x02
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#define PIC_STATUS 0x04
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#define PIC_INTR_TIMEOUT 0x06
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#define PIC_ICI0_INTR_TIMEOUT 0x08
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#define PIC_ICI1_INTR_TIMEOUT 0x0a
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#define PIC_ICI2_INTR_TIMEOUT 0x0c
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#define PIC_IPI_CTL 0x0e
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#define PIC_INT_ACK 0x10
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#define PIC_INT_PENDING0 0x12
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#define PIC_INT_PENDING1 0x14
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#define PIC_INT_PENDING2 0x16
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#define PIC_WDOG0_MAXVAL 0x18
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#define PIC_WDOG0_COUNT 0x1a
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#define PIC_WDOG0_ENABLE0 0x1c
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#define PIC_WDOG0_ENABLE1 0x1e
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#define PIC_WDOG0_BEATCMD 0x20
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#define PIC_WDOG0_BEAT0 0x22
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#define PIC_WDOG0_BEAT1 0x24
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#define PIC_WDOG1_MAXVAL 0x26
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#define PIC_WDOG1_COUNT 0x28
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#define PIC_WDOG1_ENABLE0 0x2a
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#define PIC_WDOG1_ENABLE1 0x2c
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#define PIC_WDOG1_BEATCMD 0x2e
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#define PIC_WDOG1_BEAT0 0x30
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#define PIC_WDOG1_BEAT1 0x32
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#define PIC_WDOG_MAXVAL(i) (PIC_WDOG0_MAXVAL + ((i) ? 7 : 0))
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#define PIC_WDOG_COUNT(i) (PIC_WDOG0_COUNT + ((i) ? 7 : 0))
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#define PIC_WDOG_ENABLE0(i) (PIC_WDOG0_ENABLE0 + ((i) ? 7 : 0))
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#define PIC_WDOG_ENABLE1(i) (PIC_WDOG0_ENABLE1 + ((i) ? 7 : 0))
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#define PIC_WDOG_BEATCMD(i) (PIC_WDOG0_BEATCMD + ((i) ? 7 : 0))
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#define PIC_WDOG_BEAT0(i) (PIC_WDOG0_BEAT0 + ((i) ? 7 : 0))
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#define PIC_WDOG_BEAT1(i) (PIC_WDOG0_BEAT1 + ((i) ? 7 : 0))
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#define PIC_TIMER0_MAXVAL 0x34
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#define PIC_TIMER1_MAXVAL 0x36
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#define PIC_TIMER2_MAXVAL 0x38
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#define PIC_TIMER3_MAXVAL 0x3a
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#define PIC_TIMER4_MAXVAL 0x3c
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#define PIC_TIMER5_MAXVAL 0x3e
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#define PIC_TIMER6_MAXVAL 0x40
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#define PIC_TIMER7_MAXVAL 0x42
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#define PIC_TIMER_MAXVAL(i) (PIC_TIMER0_MAXVAL + ((i) * 2))
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#define PIC_TIMER0_COUNT 0x44
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#define PIC_TIMER1_COUNT 0x46
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#define PIC_TIMER2_COUNT 0x48
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#define PIC_TIMER3_COUNT 0x4a
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#define PIC_TIMER4_COUNT 0x4c
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#define PIC_TIMER5_COUNT 0x4e
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#define PIC_TIMER6_COUNT 0x50
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#define PIC_TIMER7_COUNT 0x52
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#define PIC_TIMER_COUNT(i) (PIC_TIMER0_COUNT + ((i) * 2))
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#define PIC_ITE0_N0_N1 0x54
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#define PIC_ITE1_N0_N1 0x58
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#define PIC_ITE2_N0_N1 0x5c
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#define PIC_ITE3_N0_N1 0x60
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#define PIC_ITE4_N0_N1 0x64
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#define PIC_ITE5_N0_N1 0x68
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#define PIC_ITE6_N0_N1 0x6c
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#define PIC_ITE7_N0_N1 0x70
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#define PIC_ITE_N0_N1(i) (PIC_ITE0_N0_N1 + ((i) * 4))
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#define PIC_ITE0_N2_N3 0x56
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#define PIC_ITE1_N2_N3 0x5a
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#define PIC_ITE2_N2_N3 0x5e
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#define PIC_ITE3_N2_N3 0x62
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#define PIC_ITE4_N2_N3 0x66
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#define PIC_ITE5_N2_N3 0x6a
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#define PIC_ITE6_N2_N3 0x6e
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#define PIC_ITE7_N2_N3 0x72
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#define PIC_ITE_N2_N3(i) (PIC_ITE0_N2_N3 + ((i) * 4))
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#define PIC_IRT0 0x74
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#define PIC_IRT(i) (PIC_IRT0 + ((i) * 2))
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#define PIC_9XX_PENDING_0 0x6
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#define PIC_9XX_PENDING_1 0x8
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#define PIC_9XX_PENDING_2 0xa
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#define PIC_9XX_PENDING_3 0xc
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#define PIC_9XX_IRT0 0x1c0
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#define PIC_9XX_IRT(i) (PIC_9XX_IRT0 + ((i) * 2))
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/*
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* IRT Map
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*/
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#define PIC_NUM_IRTS 160
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#define PIC_9XX_NUM_IRTS 256
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#define PIC_IRT_WD_0_INDEX 0
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#define PIC_IRT_WD_1_INDEX 1
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#define PIC_IRT_WD_NMI_0_INDEX 2
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#define PIC_IRT_WD_NMI_1_INDEX 3
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#define PIC_IRT_TIMER_0_INDEX 4
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#define PIC_IRT_TIMER_1_INDEX 5
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#define PIC_IRT_TIMER_2_INDEX 6
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#define PIC_IRT_TIMER_3_INDEX 7
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#define PIC_IRT_TIMER_4_INDEX 8
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#define PIC_IRT_TIMER_5_INDEX 9
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#define PIC_IRT_TIMER_6_INDEX 10
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#define PIC_IRT_TIMER_7_INDEX 11
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#define PIC_IRT_CLOCK_INDEX PIC_IRT_TIMER_7_INDEX
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#define PIC_IRT_TIMER_INDEX(num) ((num) + PIC_IRT_TIMER_0_INDEX)
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/* 11 and 12 */
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#define PIC_NUM_MSG_Q_IRTS 32
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#define PIC_IRT_MSG_Q0_INDEX 12
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#define PIC_IRT_MSG_Q_INDEX(qid) ((qid) + PIC_IRT_MSG_Q0_INDEX)
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/* 12 to 43 */
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#define PIC_IRT_MSG_0_INDEX 44
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#define PIC_IRT_MSG_1_INDEX 45
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/* 44 and 45 */
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#define PIC_NUM_PCIE_MSIX_IRTS 32
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#define PIC_IRT_PCIE_MSIX_0_INDEX 46
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#define PIC_IRT_PCIE_MSIX_INDEX(num) ((num) + PIC_IRT_PCIE_MSIX_0_INDEX)
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/* 46 to 77 */
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#define PIC_NUM_PCIE_LINK_IRTS 4
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#define PIC_IRT_PCIE_LINK_0_INDEX 78
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#define PIC_IRT_PCIE_LINK_1_INDEX 79
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#define PIC_IRT_PCIE_LINK_2_INDEX 80
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#define PIC_IRT_PCIE_LINK_3_INDEX 81
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#define PIC_IRT_PCIE_LINK_INDEX(num) ((num) + PIC_IRT_PCIE_LINK_0_INDEX)
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#define PIC_9XX_IRT_PCIE_LINK_0_INDEX 191
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#define PIC_9XX_IRT_PCIE_LINK_INDEX(num) \
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((num) + PIC_9XX_IRT_PCIE_LINK_0_INDEX)
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#define PIC_CLOCK_TIMER 7
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#if !defined(LOCORE) && !defined(__ASSEMBLY__)
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/*
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* Misc
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*/
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#define PIC_IRT_VALID 1
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#define PIC_LOCAL_SCHEDULING 1
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#define PIC_GLOBAL_SCHEDULING 0
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#define nlm_read_pic_reg(b, r) nlm_read_reg64(b, r)
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#define nlm_write_pic_reg(b, r, v) nlm_write_reg64(b, r, v)
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#define nlm_get_pic_pcibase(node) nlm_pcicfg_base(cpu_is_xlp9xx() ? \
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XLP9XX_IO_PIC_OFFSET(node) : XLP_IO_PIC_OFFSET(node))
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#define nlm_get_pic_regbase(node) (nlm_get_pic_pcibase(node) + XLP_IO_PCI_HDRSZ)
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/* We use PIC on node 0 as a timer */
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#define pic_timer_freq() nlm_get_pic_frequency(0)
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/* IRT and h/w interrupt routines */
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static inline void
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nlm_9xx_pic_write_irt(uint64_t base, int irt_num, int en, int nmi,
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int sch, int vec, int dt, int db, int cpu)
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{
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uint64_t val;
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val = (((uint64_t)en & 0x1) << 22) | ((nmi & 0x1) << 23) |
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((0 /*mc*/) << 20) | ((vec & 0x3f) << 24) |
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((dt & 0x1) << 21) | (0 /*ptr*/ << 16) |
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(cpu & 0x3ff);
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nlm_write_pic_reg(base, PIC_9XX_IRT(irt_num), val);
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}
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static inline void
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nlm_pic_write_irt(uint64_t base, int irt_num, int en, int nmi,
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int sch, int vec, int dt, int db, int dte)
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{
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uint64_t val;
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val = (((uint64_t)en & 0x1) << 31) | ((nmi & 0x1) << 29) |
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((sch & 0x1) << 28) | ((vec & 0x3f) << 20) |
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((dt & 0x1) << 19) | ((db & 0x7) << 16) |
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(dte & 0xffff);
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nlm_write_pic_reg(base, PIC_IRT(irt_num), val);
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}
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static inline void
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nlm_pic_write_irt_direct(uint64_t base, int irt_num, int en, int nmi,
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int sch, int vec, int cpu)
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{
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if (cpu_is_xlp9xx())
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nlm_9xx_pic_write_irt(base, irt_num, en, nmi, sch, vec,
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1, 0, cpu);
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else
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nlm_pic_write_irt(base, irt_num, en, nmi, sch, vec, 1,
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(cpu >> 4), /* thread group */
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1 << (cpu & 0xf)); /* thread mask */
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}
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static inline uint64_t
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nlm_pic_read_timer(uint64_t base, int timer)
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{
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return nlm_read_pic_reg(base, PIC_TIMER_COUNT(timer));
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}
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static inline uint32_t
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nlm_pic_read_timer32(uint64_t base, int timer)
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{
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return (uint32_t)nlm_read_pic_reg(base, PIC_TIMER_COUNT(timer));
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}
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static inline void
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nlm_pic_write_timer(uint64_t base, int timer, uint64_t value)
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{
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nlm_write_pic_reg(base, PIC_TIMER_COUNT(timer), value);
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}
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static inline void
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nlm_pic_set_timer(uint64_t base, int timer, uint64_t value, int irq, int cpu)
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{
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uint64_t pic_ctrl = nlm_read_pic_reg(base, PIC_CTRL);
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int en;
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en = (irq > 0);
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nlm_write_pic_reg(base, PIC_TIMER_MAXVAL(timer), value);
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nlm_pic_write_irt_direct(base, PIC_IRT_TIMER_INDEX(timer),
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en, 0, 0, irq, cpu);
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/* enable the timer */
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pic_ctrl |= (1 << (PIC_CTRL_STE + timer));
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nlm_write_pic_reg(base, PIC_CTRL, pic_ctrl);
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}
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static inline void
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nlm_pic_enable_irt(uint64_t base, int irt)
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{
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uint64_t reg;
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if (cpu_is_xlp9xx()) {
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reg = nlm_read_pic_reg(base, PIC_9XX_IRT(irt));
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nlm_write_pic_reg(base, PIC_9XX_IRT(irt), reg | (1 << 22));
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} else {
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reg = nlm_read_pic_reg(base, PIC_IRT(irt));
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nlm_write_pic_reg(base, PIC_IRT(irt), reg | (1u << 31));
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}
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}
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static inline void
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nlm_pic_disable_irt(uint64_t base, int irt)
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{
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uint64_t reg;
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if (cpu_is_xlp9xx()) {
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reg = nlm_read_pic_reg(base, PIC_9XX_IRT(irt));
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reg &= ~((uint64_t)1 << 22);
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nlm_write_pic_reg(base, PIC_9XX_IRT(irt), reg);
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} else {
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reg = nlm_read_pic_reg(base, PIC_IRT(irt));
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reg &= ~((uint64_t)1 << 31);
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nlm_write_pic_reg(base, PIC_IRT(irt), reg);
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}
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}
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static inline void
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nlm_pic_send_ipi(uint64_t base, int hwt, int irq, int nmi)
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{
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uint64_t ipi;
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if (cpu_is_xlp9xx())
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ipi = (nmi << 23) | (irq << 24) |
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(0/*mcm*/ << 20) | (0/*ptr*/ << 16) | hwt;
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else
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ipi = ((uint64_t)nmi << 31) | (irq << 20) |
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((hwt >> 4) << 16) | (1 << (hwt & 0xf));
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nlm_write_pic_reg(base, PIC_IPI_CTL, ipi);
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}
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static inline void
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nlm_pic_ack(uint64_t base, int irt_num)
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{
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nlm_write_pic_reg(base, PIC_INT_ACK, irt_num);
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/* Ack the Status register for Watchdog & System timers */
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if (irt_num < 12)
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nlm_write_pic_reg(base, PIC_STATUS, (1 << irt_num));
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}
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static inline void
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nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt, int en)
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{
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nlm_pic_write_irt_direct(base, irt, en, 0, 0, irq, hwt);
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}
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int nlm_irq_to_irt(int irq);
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#endif /* __ASSEMBLY__ */
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#endif /* _NLM_HAL_PIC_H */
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