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/* * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). 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 NetLogic * 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 NETLOGIC ``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 NETLOGIC 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. */ #ifndef _NLM_HAL_PIC_H #define _NLM_HAL_PIC_H /* PIC Specific registers */ #define PIC_CTRL 0x00 /* PIC control register defines */ #define PIC_CTRL_ITV 32 /* interrupt timeout value */ #define PIC_CTRL_ICI 19 /* ICI interrupt timeout enable */ #define PIC_CTRL_ITE 18 /* interrupt timeout enable */ #define PIC_CTRL_STE 10 /* system timer interrupt enable */ #define PIC_CTRL_WWR1 8 /* watchdog 1 wraparound count for reset */ #define PIC_CTRL_WWR0 6 /* watchdog 0 wraparound count for reset */ #define PIC_CTRL_WWN1 4 /* watchdog 1 wraparound count for NMI */ #define PIC_CTRL_WWN0 2 /* watchdog 0 wraparound count for NMI */ #define PIC_CTRL_WTE 0 /* watchdog timer enable */ /* PIC Status register defines */ #define PIC_ICI_STATUS 33 /* ICI interrupt timeout status */ #define PIC_ITE_STATUS 32 /* interrupt timeout status */ #define PIC_STS_STATUS 4 /* System timer interrupt status */ #define PIC_WNS_STATUS 2 /* NMI status for watchdog timers */ #define PIC_WIS_STATUS 0 /* Interrupt status for watchdog timers */ /* PIC IPI control register offsets */ #define PIC_IPICTRL_NMI 32 #define PIC_IPICTRL_RIV 20 /* received interrupt vector */ #define PIC_IPICTRL_IDB 16 /* interrupt destination base */ #define PIC_IPICTRL_DTE 0 /* interrupt destination thread enables */ /* PIC IRT register offsets */ #define PIC_IRT_ENABLE 31 #define PIC_IRT_NMI 29 #define PIC_IRT_SCH 28 /* Scheduling scheme */ #define PIC_IRT_RVEC 20 /* Interrupt receive vectors */ #define PIC_IRT_DT 19 /* Destination type */ #define PIC_IRT_DB 16 /* Destination base */ #define PIC_IRT_DTE 0 /* Destination thread enables */ #define PIC_BYTESWAP 0x02 #define PIC_STATUS 0x04 #define PIC_INTR_TIMEOUT 0x06 #define PIC_ICI0_INTR_TIMEOUT 0x08 #define PIC_ICI1_INTR_TIMEOUT 0x0a #define PIC_ICI2_INTR_TIMEOUT 0x0c #define PIC_IPI_CTL 0x0e #define PIC_INT_ACK 0x10 #define PIC_INT_PENDING0 0x12 #define PIC_INT_PENDING1 0x14 #define PIC_INT_PENDING2 0x16 #define PIC_WDOG0_MAXVAL 0x18 #define PIC_WDOG0_COUNT 0x1a #define PIC_WDOG0_ENABLE0 0x1c #define PIC_WDOG0_ENABLE1 0x1e #define PIC_WDOG0_BEATCMD 0x20 #define PIC_WDOG0_BEAT0 0x22 #define PIC_WDOG0_BEAT1 0x24 #define PIC_WDOG1_MAXVAL 0x26 #define PIC_WDOG1_COUNT 0x28 #define PIC_WDOG1_ENABLE0 0x2a #define PIC_WDOG1_ENABLE1 0x2c #define PIC_WDOG1_BEATCMD 0x2e #define PIC_WDOG1_BEAT0 0x30 #define PIC_WDOG1_BEAT1 0x32 #define PIC_WDOG_MAXVAL(i) (PIC_WDOG0_MAXVAL + ((i) ? 7 : 0)) #define PIC_WDOG_COUNT(i) (PIC_WDOG0_COUNT + ((i) ? 7 : 0)) #define PIC_WDOG_ENABLE0(i) (PIC_WDOG0_ENABLE0 + ((i) ? 7 : 0)) #define PIC_WDOG_ENABLE1(i) (PIC_WDOG0_ENABLE1 + ((i) ? 7 : 0)) #define PIC_WDOG_BEATCMD(i) (PIC_WDOG0_BEATCMD + ((i) ? 7 : 0)) #define PIC_WDOG_BEAT0(i) (PIC_WDOG0_BEAT0 + ((i) ? 7 : 0)) #define PIC_WDOG_BEAT1(i) (PIC_WDOG0_BEAT1 + ((i) ? 7 : 0)) #define PIC_TIMER0_MAXVAL 0x34 #define PIC_TIMER1_MAXVAL 0x36 #define PIC_TIMER2_MAXVAL 0x38 #define PIC_TIMER3_MAXVAL 0x3a #define PIC_TIMER4_MAXVAL 0x3c #define PIC_TIMER5_MAXVAL 0x3e #define PIC_TIMER6_MAXVAL 0x40 #define PIC_TIMER7_MAXVAL 0x42 #define PIC_TIMER_MAXVAL(i) (PIC_TIMER0_MAXVAL + ((i) * 2)) #define PIC_TIMER0_COUNT 0x44 #define PIC_TIMER1_COUNT 0x46 #define PIC_TIMER2_COUNT 0x48 #define PIC_TIMER3_COUNT 0x4a #define PIC_TIMER4_COUNT 0x4c #define PIC_TIMER5_COUNT 0x4e #define PIC_TIMER6_COUNT 0x50 #define PIC_TIMER7_COUNT 0x52 #define PIC_TIMER_COUNT(i) (PIC_TIMER0_COUNT + ((i) * 2)) #define PIC_ITE0_N0_N1 0x54 #define PIC_ITE1_N0_N1 0x58 #define PIC_ITE2_N0_N1 0x5c #define PIC_ITE3_N0_N1 0x60 #define PIC_ITE4_N0_N1 0x64 #define PIC_ITE5_N0_N1 0x68 #define PIC_ITE6_N0_N1 0x6c #define PIC_ITE7_N0_N1 0x70 #define PIC_ITE_N0_N1(i) (PIC_ITE0_N0_N1 + ((i) * 4)) #define PIC_ITE0_N2_N3 0x56 #define PIC_ITE1_N2_N3 0x5a #define PIC_ITE2_N2_N3 0x5e #define PIC_ITE3_N2_N3 0x62 #define PIC_ITE4_N2_N3 0x66 #define PIC_ITE5_N2_N3 0x6a #define PIC_ITE6_N2_N3 0x6e #define PIC_ITE7_N2_N3 0x72 #define PIC_ITE_N2_N3(i) (PIC_ITE0_N2_N3 + ((i) * 4)) #define PIC_IRT0 0x74 #define PIC_IRT(i) (PIC_IRT0 + ((i) * 2)) #define PIC_9XX_PENDING_0 0x6 #define PIC_9XX_PENDING_1 0x8 #define PIC_9XX_PENDING_2 0xa #define PIC_9XX_PENDING_3 0xc #define PIC_9XX_IRT0 0x1c0 #define PIC_9XX_IRT(i) (PIC_9XX_IRT0 + ((i) * 2)) /* * IRT Map */ #define PIC_NUM_IRTS 160 #define PIC_9XX_NUM_IRTS 256 #define PIC_IRT_WD_0_INDEX 0 #define PIC_IRT_WD_1_INDEX 1 #define PIC_IRT_WD_NMI_0_INDEX 2 #define PIC_IRT_WD_NMI_1_INDEX 3 #define PIC_IRT_TIMER_0_INDEX 4 #define PIC_IRT_TIMER_1_INDEX 5 #define PIC_IRT_TIMER_2_INDEX 6 #define PIC_IRT_TIMER_3_INDEX 7 #define PIC_IRT_TIMER_4_INDEX 8 #define PIC_IRT_TIMER_5_INDEX 9 #define PIC_IRT_TIMER_6_INDEX 10 #define PIC_IRT_TIMER_7_INDEX 11 #define PIC_IRT_CLOCK_INDEX PIC_IRT_TIMER_7_INDEX #define PIC_IRT_TIMER_INDEX(num) ((num) + PIC_IRT_TIMER_0_INDEX) /* 11 and 12 */ #define PIC_NUM_MSG_Q_IRTS 32 #define PIC_IRT_MSG_Q0_INDEX 12 #define PIC_IRT_MSG_Q_INDEX(qid) ((qid) + PIC_IRT_MSG_Q0_INDEX) /* 12 to 43 */ #define PIC_IRT_MSG_0_INDEX 44 #define PIC_IRT_MSG_1_INDEX 45 /* 44 and 45 */ #define PIC_NUM_PCIE_MSIX_IRTS 32 #define PIC_IRT_PCIE_MSIX_0_INDEX 46 #define PIC_IRT_PCIE_MSIX_INDEX(num) ((num) + PIC_IRT_PCIE_MSIX_0_INDEX) /* 46 to 77 */ #define PIC_NUM_PCIE_LINK_IRTS 4 #define PIC_IRT_PCIE_LINK_0_INDEX 78 #define PIC_IRT_PCIE_LINK_1_INDEX 79 #define PIC_IRT_PCIE_LINK_2_INDEX 80 #define PIC_IRT_PCIE_LINK_3_INDEX 81 #define PIC_IRT_PCIE_LINK_INDEX(num) ((num) + PIC_IRT_PCIE_LINK_0_INDEX) #define PIC_9XX_IRT_PCIE_LINK_0_INDEX 191 #define PIC_9XX_IRT_PCIE_LINK_INDEX(num) \ ((num) + PIC_9XX_IRT_PCIE_LINK_0_INDEX) #define PIC_CLOCK_TIMER 7 #if !defined(LOCORE) && !defined(__ASSEMBLY__) /* * Misc */ #define PIC_IRT_VALID 1 #define PIC_LOCAL_SCHEDULING 1 #define PIC_GLOBAL_SCHEDULING 0 #define nlm_read_pic_reg(b, r) nlm_read_reg64(b, r) #define nlm_write_pic_reg(b, r, v) nlm_write_reg64(b, r, v) #define nlm_get_pic_pcibase(node) nlm_pcicfg_base(cpu_is_xlp9xx() ? \ XLP9XX_IO_PIC_OFFSET(node) : XLP_IO_PIC_OFFSET(node)) #define nlm_get_pic_regbase(node) (nlm_get_pic_pcibase(node) + XLP_IO_PCI_HDRSZ) /* We use PIC on node 0 as a timer */ #define pic_timer_freq() nlm_get_pic_frequency(0) /* IRT and h/w interrupt routines */ static inline void nlm_9xx_pic_write_irt(uint64_t base, int irt_num, int en, int nmi, int sch, int vec, int dt, int db, int cpu) { uint64_t val; val = (((uint64_t)en & 0x1) << 22) | ((nmi & 0x1) << 23) | ((0 /*mc*/) << 20) | ((vec & 0x3f) << 24) | ((dt & 0x1) << 21) | (0 /*ptr*/ << 16) | (cpu & 0x3ff); nlm_write_pic_reg(base, PIC_9XX_IRT(irt_num), val); } static inline void nlm_pic_write_irt(uint64_t base, int irt_num, int en, int nmi, int sch, int vec, int dt, int db, int dte) { uint64_t val; val = (((uint64_t)en & 0x1) << 31) | ((nmi & 0x1) << 29) | ((sch & 0x1) << 28) | ((vec & 0x3f) << 20) | ((dt & 0x1) << 19) | ((db & 0x7) << 16) | (dte & 0xffff); nlm_write_pic_reg(base, PIC_IRT(irt_num), val); } static inline void nlm_pic_write_irt_direct(uint64_t base, int irt_num, int en, int nmi, int sch, int vec, int cpu) { if (cpu_is_xlp9xx()) nlm_9xx_pic_write_irt(base, irt_num, en, nmi, sch, vec, 1, 0, cpu); else nlm_pic_write_irt(base, irt_num, en, nmi, sch, vec, 1, (cpu >> 4), /* thread group */ 1 << (cpu & 0xf)); /* thread mask */ } static inline uint64_t nlm_pic_read_timer(uint64_t base, int timer) { return nlm_read_pic_reg(base, PIC_TIMER_COUNT(timer)); } static inline uint32_t nlm_pic_read_timer32(uint64_t base, int timer) { return (uint32_t)nlm_read_pic_reg(base, PIC_TIMER_COUNT(timer)); } static inline void nlm_pic_write_timer(uint64_t base, int timer, uint64_t value) { nlm_write_pic_reg(base, PIC_TIMER_COUNT(timer), value); } static inline void nlm_pic_set_timer(uint64_t base, int timer, uint64_t value, int irq, int cpu) { uint64_t pic_ctrl = nlm_read_pic_reg(base, PIC_CTRL); int en; en = (irq > 0); nlm_write_pic_reg(base, PIC_TIMER_MAXVAL(timer), value); nlm_pic_write_irt_direct(base, PIC_IRT_TIMER_INDEX(timer), en, 0, 0, irq, cpu); /* enable the timer */ pic_ctrl |= (1 << (PIC_CTRL_STE + timer)); nlm_write_pic_reg(base, PIC_CTRL, pic_ctrl); } static inline void nlm_pic_enable_irt(uint64_t base, int irt) { uint64_t reg; if (cpu_is_xlp9xx()) { reg = nlm_read_pic_reg(base, PIC_9XX_IRT(irt)); nlm_write_pic_reg(base, PIC_9XX_IRT(irt), reg | (1 << 22)); } else { reg = nlm_read_pic_reg(base, PIC_IRT(irt)); nlm_write_pic_reg(base, PIC_IRT(irt), reg | (1u << 31)); } } static inline void nlm_pic_disable_irt(uint64_t base, int irt) { uint64_t reg; if (cpu_is_xlp9xx()) { reg = nlm_read_pic_reg(base, PIC_9XX_IRT(irt)); reg &= ~((uint64_t)1 << 22); nlm_write_pic_reg(base, PIC_9XX_IRT(irt), reg); } else { reg = nlm_read_pic_reg(base, PIC_IRT(irt)); reg &= ~((uint64_t)1 << 31); nlm_write_pic_reg(base, PIC_IRT(irt), reg); } } static inline void nlm_pic_send_ipi(uint64_t base, int hwt, int irq, int nmi) { uint64_t ipi; if (cpu_is_xlp9xx()) ipi = (nmi << 23) | (irq << 24) | (0/*mcm*/ << 20) | (0/*ptr*/ << 16) | hwt; else ipi = ((uint64_t)nmi << 31) | (irq << 20) | ((hwt >> 4) << 16) | (1 << (hwt & 0xf)); nlm_write_pic_reg(base, PIC_IPI_CTL, ipi); } static inline void nlm_pic_ack(uint64_t base, int irt_num) { nlm_write_pic_reg(base, PIC_INT_ACK, irt_num); /* Ack the Status register for Watchdog & System timers */ if (irt_num < 12) nlm_write_pic_reg(base, PIC_STATUS, (1 << irt_num)); } static inline void nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt, int en) { nlm_pic_write_irt_direct(base, irt, en, 0, 0, irq, hwt); } int nlm_irq_to_irt(int irq); #endif /* __ASSEMBLY__ */ #endif /* _NLM_HAL_PIC_H */
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