/* * 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. */ #ifndef _NLM_FMN_H_ #define _NLM_FMN_H_ #include /* for COP2 access */ /* Station IDs */ #define FMN_STNID_CPU0 0x00 #define FMN_STNID_CPU1 0x08 #define FMN_STNID_CPU2 0x10 #define FMN_STNID_CPU3 0x18 #define FMN_STNID_CPU4 0x20 #define FMN_STNID_CPU5 0x28 #define FMN_STNID_CPU6 0x30 #define FMN_STNID_CPU7 0x38 #define FMN_STNID_XGS0_TX 64 #define FMN_STNID_XMAC0_00_TX 64 #define FMN_STNID_XMAC0_01_TX 65 #define FMN_STNID_XMAC0_02_TX 66 #define FMN_STNID_XMAC0_03_TX 67 #define FMN_STNID_XMAC0_04_TX 68 #define FMN_STNID_XMAC0_05_TX 69 #define FMN_STNID_XMAC0_06_TX 70 #define FMN_STNID_XMAC0_07_TX 71 #define FMN_STNID_XMAC0_08_TX 72 #define FMN_STNID_XMAC0_09_TX 73 #define FMN_STNID_XMAC0_10_TX 74 #define FMN_STNID_XMAC0_11_TX 75 #define FMN_STNID_XMAC0_12_TX 76 #define FMN_STNID_XMAC0_13_TX 77 #define FMN_STNID_XMAC0_14_TX 78 #define FMN_STNID_XMAC0_15_TX 79 #define FMN_STNID_XGS1_TX 80 #define FMN_STNID_XMAC1_00_TX 80 #define FMN_STNID_XMAC1_01_TX 81 #define FMN_STNID_XMAC1_02_TX 82 #define FMN_STNID_XMAC1_03_TX 83 #define FMN_STNID_XMAC1_04_TX 84 #define FMN_STNID_XMAC1_05_TX 85 #define FMN_STNID_XMAC1_06_TX 86 #define FMN_STNID_XMAC1_07_TX 87 #define FMN_STNID_XMAC1_08_TX 88 #define FMN_STNID_XMAC1_09_TX 89 #define FMN_STNID_XMAC1_10_TX 90 #define FMN_STNID_XMAC1_11_TX 91 #define FMN_STNID_XMAC1_12_TX 92 #define FMN_STNID_XMAC1_13_TX 93 #define FMN_STNID_XMAC1_14_TX 94 #define FMN_STNID_XMAC1_15_TX 95 #define FMN_STNID_GMAC 96 #define FMN_STNID_GMACJFR_0 96 #define FMN_STNID_GMACRFR_0 97 #define FMN_STNID_GMACTX0 98 #define FMN_STNID_GMACTX1 99 #define FMN_STNID_GMACTX2 100 #define FMN_STNID_GMACTX3 101 #define FMN_STNID_GMACJFR_1 102 #define FMN_STNID_GMACRFR_1 103 #define FMN_STNID_DMA 104 #define FMN_STNID_DMA_0 104 #define FMN_STNID_DMA_1 105 #define FMN_STNID_DMA_2 106 #define FMN_STNID_DMA_3 107 #define FMN_STNID_XGS0FR 112 #define FMN_STNID_XMAC0JFR 112 #define FMN_STNID_XMAC0RFR 113 #define FMN_STNID_XGS1FR 114 #define FMN_STNID_XMAC1JFR 114 #define FMN_STNID_XMAC1RFR 115 #define FMN_STNID_SEC 120 #define FMN_STNID_SEC0 120 #define FMN_STNID_SEC1 121 #define FMN_STNID_SEC2 122 #define FMN_STNID_SEC3 123 #define FMN_STNID_PK0 124 #define FMN_STNID_SEC_RSA 124 #define FMN_STNID_SEC_RSVD0 125 #define FMN_STNID_SEC_RSVD1 126 #define FMN_STNID_SEC_RSVD2 127 #define FMN_STNID_GMAC1 80 #define FMN_STNID_GMAC1_FR_0 81 #define FMN_STNID_GMAC1_TX0 82 #define FMN_STNID_GMAC1_TX1 83 #define FMN_STNID_GMAC1_TX2 84 #define FMN_STNID_GMAC1_TX3 85 #define FMN_STNID_GMAC1_FR_1 87 #define FMN_STNID_GMAC0 96 #define FMN_STNID_GMAC0_FR_0 97 #define FMN_STNID_GMAC0_TX0 98 #define FMN_STNID_GMAC0_TX1 99 #define FMN_STNID_GMAC0_TX2 100 #define FMN_STNID_GMAC0_TX3 101 #define FMN_STNID_GMAC0_FR_1 103 #define FMN_STNID_CMP_0 108 #define FMN_STNID_CMP_1 109 #define FMN_STNID_CMP_2 110 #define FMN_STNID_CMP_3 111 #define FMN_STNID_PCIE_0 116 #define FMN_STNID_PCIE_1 117 #define FMN_STNID_PCIE_2 118 #define FMN_STNID_PCIE_3 119 #define FMN_STNID_XLS_PK0 121 #define nlm_read_c2_cc0(s) __read_32bit_c2_register($16, s) #define nlm_read_c2_cc1(s) __read_32bit_c2_register($17, s) #define nlm_read_c2_cc2(s) __read_32bit_c2_register($18, s) #define nlm_read_c2_cc3(s) __read_32bit_c2_register($19, s) #define nlm_read_c2_cc4(s) __read_32bit_c2_register($20, s) #define nlm_read_c2_cc5(s) __read_32bit_c2_register($21, s) #define nlm_read_c2_cc6(s) __read_32bit_c2_register($22, s) #define nlm_read_c2_cc7(s) __read_32bit_c2_register($23, s) #define nlm_read_c2_cc8(s) __read_32bit_c2_register($24, s) #define nlm_read_c2_cc9(s) __read_32bit_c2_register($25, s) #define nlm_read_c2_cc10(s) __read_32bit_c2_register($26, s) #define nlm_read_c2_cc11(s) __read_32bit_c2_register($27, s) #define nlm_read_c2_cc12(s) __read_32bit_c2_register($28, s) #define nlm_read_c2_cc13(s) __read_32bit_c2_register($29, s) #define nlm_read_c2_cc14(s) __read_32bit_c2_register($30, s) #define nlm_read_c2_cc15(s) __read_32bit_c2_register($31, s) #define nlm_write_c2_cc0(s, v) __write_32bit_c2_register($16, s, v) #define nlm_write_c2_cc1(s, v) __write_32bit_c2_register($17, s, v) #define nlm_write_c2_cc2(s, v) __write_32bit_c2_register($18, s, v) #define nlm_write_c2_cc3(s, v) __write_32bit_c2_register($19, s, v) #define nlm_write_c2_cc4(s, v) __write_32bit_c2_register($20, s, v) #define nlm_write_c2_cc5(s, v) __write_32bit_c2_register($21, s, v) #define nlm_write_c2_cc6(s, v) __write_32bit_c2_register($22, s, v) #define nlm_write_c2_cc7(s, v) __write_32bit_c2_register($23, s, v) #define nlm_write_c2_cc8(s, v) __write_32bit_c2_register($24, s, v) #define nlm_write_c2_cc9(s, v) __write_32bit_c2_register($25, s, v) #define nlm_write_c2_cc10(s, v) __write_32bit_c2_register($26, s, v) #define nlm_write_c2_cc11(s, v) __write_32bit_c2_register($27, s, v) #define nlm_write_c2_cc12(s, v) __write_32bit_c2_register($28, s, v) #define nlm_write_c2_cc13(s, v) __write_32bit_c2_register($29, s, v) #define nlm_write_c2_cc14(s, v) __write_32bit_c2_register($30, s, v) #define nlm_write_c2_cc15(s, v) __write_32bit_c2_register($31, s, v) #define nlm_read_c2_status0() __read_32bit_c2_register($2, 0) #define nlm_write_c2_status0(v) __write_32bit_c2_register($2, 0, v) #define nlm_read_c2_status1() __read_32bit_c2_register($2, 1) #define nlm_write_c2_status1(v) __write_32bit_c2_register($2, 1, v) #define nlm_read_c2_status(sel) __read_32bit_c2_register($2, 0) #define nlm_read_c2_config() __read_32bit_c2_register($3, 0) #define nlm_write_c2_config(v) __write_32bit_c2_register($3, 0, v) #define nlm_read_c2_bucksize(b) __read_32bit_c2_register($4, b) #define nlm_write_c2_bucksize(b, v) __write_32bit_c2_register($4, b, v) #define nlm_read_c2_rx_msg0() __read_64bit_c2_register($1, 0) #define nlm_read_c2_rx_msg1() __read_64bit_c2_register($1, 1) #define nlm_read_c2_rx_msg2() __read_64bit_c2_register($1, 2) #define nlm_read_c2_rx_msg3() __read_64bit_c2_register($1, 3) #define nlm_write_c2_tx_msg0(v) __write_64bit_c2_register($0, 0, v) #define nlm_write_c2_tx_msg1(v) __write_64bit_c2_register($0, 1, v) #define nlm_write_c2_tx_msg2(v) __write_64bit_c2_register($0, 2, v) #define nlm_write_c2_tx_msg3(v) __write_64bit_c2_register($0, 3, v) #define FMN_STN_RX_QSIZE 256 #define FMN_NSTATIONS 128 #define FMN_CORE_NBUCKETS 8 static inline void nlm_msgsnd(unsigned int stid) { __asm__ volatile ( ".set push\n" ".set noreorder\n" ".set noat\n" "move $1, %0\n" "c2 0x10001\n" /* msgsnd $1 */ ".set pop\n" : : "r" (stid) : "$1" ); } static inline void nlm_msgld(unsigned int pri) { __asm__ volatile ( ".set push\n" ".set noreorder\n" ".set noat\n" "move $1, %0\n" "c2 0x10002\n" /* msgld $1 */ ".set pop\n" : : "r" (pri) : "$1" ); } static inline void nlm_msgwait(unsigned int mask) { __asm__ volatile ( ".set push\n" ".set noreorder\n" ".set noat\n" "move $8, %0\n" "c2 0x10003\n" /* msgwait $1 */ ".set pop\n" : : "r" (mask) : "$1" ); } /* * Disable interrupts and enable COP2 access */ static inline uint32_t nlm_cop2_enable_irqsave(void) { uint32_t sr = read_c0_status(); write_c0_status((sr & ~ST0_IE) | ST0_CU2); return sr; } static inline void nlm_cop2_disable_irqrestore(uint32_t sr) { write_c0_status(sr); } static inline void nlm_fmn_setup_intr(int irq, unsigned int tmask) { uint32_t config; config = (1 << 24) /* interrupt water mark - 1 msg */ | (irq << 16) /* irq */ | (tmask << 8) /* thread mask */ | 0x2; /* enable watermark intr, disable empty intr */ nlm_write_c2_config(config); } struct nlm_fmn_msg { uint64_t msg0; uint64_t msg1; uint64_t msg2; uint64_t msg3; }; static inline int nlm_fmn_send(unsigned int size, unsigned int code, unsigned int stid, struct nlm_fmn_msg *msg) { unsigned int dest; uint32_t status; int i; /* * Make sure that all the writes pending at the cpu are flushed. * Any writes pending on CPU will not be see by devices. L1/L2 * caches are coherent with IO, so no cache flush needed. */ __asm __volatile("sync"); /* Load TX message buffers */ nlm_write_c2_tx_msg0(msg->msg0); nlm_write_c2_tx_msg1(msg->msg1); nlm_write_c2_tx_msg2(msg->msg2); nlm_write_c2_tx_msg3(msg->msg3); dest = ((size - 1) << 16) | (code << 8) | stid; /* * Retry a few times on credit fail, this should be a * transient condition, unless there is a configuration * failure, or the receiver is stuck. */ for (i = 0; i < 8; i++) { nlm_msgsnd(dest); status = nlm_read_c2_status0(); if ((status & 0x2) == 1) pr_info("Send pending fail!\n"); if ((status & 0x4) == 0) return 0; } /* If there is a credit failure, return error */ return status & 0x06; } static inline int nlm_fmn_receive(int bucket, int *size, int *code, int *stid, struct nlm_fmn_msg *msg) { uint32_t status, tmp; nlm_msgld(bucket); /* wait for load pending to clear */ do { status = nlm_read_c2_status0(); } while ((status & 0x08) != 0); /* receive error bits */ tmp = status & 0x30; if (tmp != 0) return tmp; *size = ((status & 0xc0) >> 6) + 1; *code = (status & 0xff00) >> 8; *stid = (status & 0x7f0000) >> 16; msg->msg0 = nlm_read_c2_rx_msg0(); msg->msg1 = nlm_read_c2_rx_msg1(); msg->msg2 = nlm_read_c2_rx_msg2(); msg->msg3 = nlm_read_c2_rx_msg3(); return 0; } struct xlr_fmn_info { int num_buckets; int start_stn_id; int end_stn_id; int credit_config[128]; }; struct xlr_board_fmn_config { int bucket_size[128]; /* size of buckets for all stations */ struct xlr_fmn_info cpu[8]; struct xlr_fmn_info gmac[2]; struct xlr_fmn_info dma; struct xlr_fmn_info cmp; struct xlr_fmn_info sae; struct xlr_fmn_info xgmac[2]; }; extern int nlm_register_fmn_handler(int start, int end, void (*fn)(int, int, int, int, struct nlm_fmn_msg *, void *), void *arg); extern void xlr_percpu_fmn_init(void); extern void nlm_setup_fmn_irq(void); extern void xlr_board_info_setup(void); extern struct xlr_board_fmn_config xlr_board_fmn_config; #endif