diff options
Diffstat (limited to 'arch/mips/include/asm/netlogic/xlp-hal/pic.h')
| -rw-r--r-- | arch/mips/include/asm/netlogic/xlp-hal/pic.h | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/arch/mips/include/asm/netlogic/xlp-hal/pic.h b/arch/mips/include/asm/netlogic/xlp-hal/pic.h new file mode 100644 index 000000000..41cefe94f --- /dev/null +++ b/arch/mips/include/asm/netlogic/xlp-hal/pic.h @@ -0,0 +1,366 @@ +/* + * 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 */ |