diff options
Diffstat (limited to 'arch/mips/netlogic')
| -rw-r--r-- | arch/mips/netlogic/common/irq.c | 8 | ||||
| -rw-r--r-- | arch/mips/netlogic/common/smp.c | 4 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/setup.c | 4 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/Makefile | 4 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/fmn-config.c | 290 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/fmn.c | 204 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/setup.c | 9 |
7 files changed, 516 insertions, 7 deletions
diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c index b89d5a6b62cc..00dcc7a2bc5a 100644 --- a/arch/mips/netlogic/common/irq.c +++ b/arch/mips/netlogic/common/irq.c @@ -58,6 +58,7 @@ #elif defined(CONFIG_CPU_XLR) #include <asm/netlogic/xlr/iomap.h> #include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/fmn.h> #else #error "Unknown CPU" #endif @@ -68,8 +69,8 @@ #else #define SMP_IRQ_MASK 0 #endif -#define PERCPU_IRQ_MASK (SMP_IRQ_MASK | (1ull << IRQ_TIMER)) - +#define PERCPU_IRQ_MASK (SMP_IRQ_MASK | (1ull << IRQ_TIMER) | \ + (1ull << IRQ_FMN)) struct nlm_pic_irq { void (*extra_ack)(struct irq_data *); @@ -241,6 +242,9 @@ void __init arch_init_irq(void) nlm_init_percpu_irqs(); nlm_init_node_irqs(0); write_c0_eimr(nlm_current_node()->irqmask); +#if defined(CONFIG_CPU_XLR) + nlm_setup_fmn_irq(); +#endif } void nlm_smp_irq_init(int hwcpuid) diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c index 0315b298a648..a080d9ee3cd7 100644 --- a/arch/mips/netlogic/common/smp.c +++ b/arch/mips/netlogic/common/smp.c @@ -118,6 +118,7 @@ static void __cpuinit nlm_init_secondary(void) hwtid = hard_smp_processor_id(); current_cpu_data.core = hwtid / NLM_THREADS_PER_CORE; + nlm_percpu_init(hwtid); nlm_smp_irq_init(hwtid); } @@ -129,9 +130,6 @@ void nlm_prepare_cpus(unsigned int max_cpus) void nlm_smp_finish(void) { -#ifdef notyet - nlm_common_msgring_cpu_init(); -#endif local_irq_enable(); } diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index 465b8d60463f..4894d62043ac 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -108,6 +108,10 @@ void xlp_mmu_init(void) (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2))); } +void nlm_percpu_init(int hwcpuid) +{ +} + void __init prom_init(void) { nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE); diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile index c287dea87570..05902bc6f080 100644 --- a/arch/mips/netlogic/xlr/Makefile +++ b/arch/mips/netlogic/xlr/Makefile @@ -1,2 +1,2 @@ -obj-y += setup.o platform.o platform-flash.o -obj-$(CONFIG_SMP) += wakeup.o +obj-y += fmn.o fmn-config.o setup.o platform.o platform-flash.o +obj-$(CONFIG_SMP) += wakeup.o diff --git a/arch/mips/netlogic/xlr/fmn-config.c b/arch/mips/netlogic/xlr/fmn-config.c new file mode 100644 index 000000000000..bed2cffa1008 --- /dev/null +++ b/arch/mips/netlogic/xlr/fmn-config.c @@ -0,0 +1,290 @@ +/* + * 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. + */ + +#include <asm/cpu-info.h> +#include <linux/irq.h> +#include <linux/interrupt.h> + +#include <asm/mipsregs.h> +#include <asm/netlogic/xlr/fmn.h> +#include <asm/netlogic/xlr/xlr.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/haldefs.h> + +struct xlr_board_fmn_config xlr_board_fmn_config; + +static void __maybe_unused print_credit_config(struct xlr_fmn_info *fmn_info) +{ + int bkt; + + pr_info("Bucket size :\n"); + pr_info("Station\t: Size\n"); + for (bkt = 0; bkt < 16; bkt++) + pr_info(" %d %d %d %d %d %d %d %d\n", + xlr_board_fmn_config.bucket_size[(bkt * 8) + 0], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 1], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 2], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 3], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 4], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 5], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 6], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 7]); + pr_info("\n"); + + pr_info("Credits distribution :\n"); + pr_info("Station\t: Size\n"); + for (bkt = 0; bkt < 16; bkt++) + pr_info(" %d %d %d %d %d %d %d %d\n", + fmn_info->credit_config[(bkt * 8) + 0], + fmn_info->credit_config[(bkt * 8) + 1], + fmn_info->credit_config[(bkt * 8) + 2], + fmn_info->credit_config[(bkt * 8) + 3], + fmn_info->credit_config[(bkt * 8) + 4], + fmn_info->credit_config[(bkt * 8) + 5], + fmn_info->credit_config[(bkt * 8) + 6], + fmn_info->credit_config[(bkt * 8) + 7]); + pr_info("\n"); +} + +static void check_credit_distribution(void) +{ + struct xlr_board_fmn_config *cfg = &xlr_board_fmn_config; + int bkt, n, total_credits, ncores; + + ncores = hweight32(nlm_current_node()->coremask); + for (bkt = 0; bkt < 128; bkt++) { + total_credits = 0; + for (n = 0; n < ncores; n++) + total_credits += cfg->cpu[n].credit_config[bkt]; + total_credits += cfg->gmac[0].credit_config[bkt]; + total_credits += cfg->gmac[1].credit_config[bkt]; + total_credits += cfg->dma.credit_config[bkt]; + total_credits += cfg->cmp.credit_config[bkt]; + total_credits += cfg->sae.credit_config[bkt]; + total_credits += cfg->xgmac[0].credit_config[bkt]; + total_credits += cfg->xgmac[1].credit_config[bkt]; + if (total_credits > cfg->bucket_size[bkt]) + pr_err("ERROR: Bucket %d: credits (%d) > size (%d)\n", + bkt, total_credits, cfg->bucket_size[bkt]); + } + pr_info("Credit distribution complete.\n"); +} + +/** + * Configure bucket size and credits for a device. 'size' is the size of + * the buckets for the device. This size is distributed among all the CPUs + * so that all of them can send messages to the device. + * + * The device is also given 'cpu_credits' to send messages to the CPUs + * + * @dev_info: FMN information structure for each devices + * @start_stn_id: Starting station id of dev_info + * @end_stn_id: End station id of dev_info + * @num_buckets: Total number of buckets for den_info + * @cpu_credits: Allowed credits to cpu for each devices pointing by dev_info + * @size: Size of the each buckets in the device station + */ +static void setup_fmn_cc(struct xlr_fmn_info *dev_info, int start_stn_id, + int end_stn_id, int num_buckets, int cpu_credits, int size) +{ + int i, j, num_core, n, credits_per_cpu; + struct xlr_fmn_info *cpu = xlr_board_fmn_config.cpu; + + num_core = hweight32(nlm_current_node()->coremask); + dev_info->num_buckets = num_buckets; + dev_info->start_stn_id = start_stn_id; + dev_info->end_stn_id = end_stn_id; + + n = num_core; + if (num_core == 3) + n = 4; + + for (i = start_stn_id; i <= end_stn_id; i++) { + xlr_board_fmn_config.bucket_size[i] = size; + + /* Dividing device credits equally to cpus */ + credits_per_cpu = size / n; + for (j = 0; j < num_core; j++) + cpu[j].credit_config[i] = credits_per_cpu; + + /* credits left to distribute */ + credits_per_cpu = size - (credits_per_cpu * num_core); + + /* distribute the remaining credits (if any), among cores */ + for (j = 0; (j < num_core) && (credits_per_cpu >= 4); j++) { + cpu[j].credit_config[i] += 4; + credits_per_cpu -= 4; + } + } + + /* Distributing cpu per bucket credits to devices */ + for (i = 0; i < num_core; i++) { + for (j = 0; j < FMN_CORE_NBUCKETS; j++) + dev_info->credit_config[(i * 8) + j] = cpu_credits; + } +} + +/* + * Each core has 256 slots and 8 buckets, + * Configure the 8 buckets each with 32 slots + */ +static void setup_cpu_fmninfo(struct xlr_fmn_info *cpu, int num_core) +{ + int i, j; + + for (i = 0; i < num_core; i++) { + cpu[i].start_stn_id = (8 * i); + cpu[i].end_stn_id = (8 * i + 8); + + for (j = cpu[i].start_stn_id; j < cpu[i].end_stn_id; j++) + xlr_board_fmn_config.bucket_size[j] = 32; + } +} + +/** + * Setup the FMN details for each devices according to the device available + * in each variant of XLR/XLS processor + */ +void xlr_board_info_setup(void) +{ + struct xlr_fmn_info *cpu = xlr_board_fmn_config.cpu; + struct xlr_fmn_info *gmac = xlr_board_fmn_config.gmac; + struct xlr_fmn_info *xgmac = xlr_board_fmn_config.xgmac; + struct xlr_fmn_info *dma = &xlr_board_fmn_config.dma; + struct xlr_fmn_info *cmp = &xlr_board_fmn_config.cmp; + struct xlr_fmn_info *sae = &xlr_board_fmn_config.sae; + int processor_id, num_core; + + num_core = hweight32(nlm_current_node()->coremask); + processor_id = read_c0_prid() & 0xff00; + + setup_cpu_fmninfo(cpu, num_core); + switch (processor_id) { + case PRID_IMP_NETLOGIC_XLS104: + case PRID_IMP_NETLOGIC_XLS108: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLS204: + case PRID_IMP_NETLOGIC_XLS208: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLS404: + case PRID_IMP_NETLOGIC_XLS408: + case PRID_IMP_NETLOGIC_XLS404B: + case PRID_IMP_NETLOGIC_XLS408B: + case PRID_IMP_NETLOGIC_XLS416B: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 8, 32); + setup_fmn_cc(&gmac[1], FMN_STNID_GMAC1_FR_0, + FMN_STNID_GMAC1_TX3, 8, 8, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 4, 64); + setup_fmn_cc(cmp, FMN_STNID_CMP_0, + FMN_STNID_CMP_3, 4, 4, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLS412B: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 8, 32); + setup_fmn_cc(&gmac[1], FMN_STNID_GMAC1_FR_0, + FMN_STNID_GMAC1_TX3, 8, 8, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 4, 64); + setup_fmn_cc(cmp, FMN_STNID_CMP_0, + FMN_STNID_CMP_3, 4, 4, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLR308: + case PRID_IMP_NETLOGIC_XLR308C: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 4, 128); + break; + + case PRID_IMP_NETLOGIC_XLR532: + case PRID_IMP_NETLOGIC_XLR532C: + case PRID_IMP_NETLOGIC_XLR516C: + case PRID_IMP_NETLOGIC_XLR508C: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 4, 128); + break; + + case PRID_IMP_NETLOGIC_XLR732: + case PRID_IMP_NETLOGIC_XLR716: + setup_fmn_cc(&xgmac[0], FMN_STNID_XMAC0_00_TX, + FMN_STNID_XMAC0_15_TX, 8, 0, 32); + setup_fmn_cc(&xgmac[1], FMN_STNID_XMAC1_00_TX, + FMN_STNID_XMAC1_15_TX, 8, 0, 32); + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 24, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 4, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 4, 128); + break; + default: + pr_err("Unknown CPU with processor ID [%d]\n", processor_id); + pr_err("Error: Cannot initialize FMN credits.\n"); + } + + check_credit_distribution(); + +#if 0 /* debug */ + print_credit_config(&cpu[0]); + print_credit_config(&gmac[0]); +#endif +} diff --git a/arch/mips/netlogic/xlr/fmn.c b/arch/mips/netlogic/xlr/fmn.c new file mode 100644 index 000000000000..4d74f03de506 --- /dev/null +++ b/arch/mips/netlogic/xlr/fmn.c @@ -0,0 +1,204 @@ +/* + * 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. + */ + +#include <linux/kernel.h> +#include <linux/irqreturn.h> +#include <linux/irq.h> +#include <linux/interrupt.h> + +#include <asm/mipsregs.h> +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/xlr/fmn.h> +#include <asm/netlogic/common.h> + +#define COP2_CC_INIT_CPU_DEST(dest, conf) \ +do { \ + nlm_write_c2_cc##dest(0, conf[(dest * 8) + 0]); \ + nlm_write_c2_cc##dest(1, conf[(dest * 8) + 1]); \ + nlm_write_c2_cc##dest(2, conf[(dest * 8) + 2]); \ + nlm_write_c2_cc##dest(3, conf[(dest * 8) + 3]); \ + nlm_write_c2_cc##dest(4, conf[(dest * 8) + 4]); \ + nlm_write_c2_cc##dest(5, conf[(dest * 8) + 5]); \ + nlm_write_c2_cc##dest(6, conf[(dest * 8) + 6]); \ + nlm_write_c2_cc##dest(7, conf[(dest * 8) + 7]); \ +} while (0) + +struct fmn_message_handler { + void (*action)(int, int, int, int, struct nlm_fmn_msg *, void *); + void *arg; +} msg_handlers[128]; + +/* + * FMN interrupt handler. We configure the FMN so that any messages in + * any of the CPU buckets will trigger an interrupt on the CPU. + * The message can be from any device on the FMN (like NAE/SAE/DMA). + * The source station id is used to figure out which of the registered + * handlers have to be called. + */ +static irqreturn_t fmn_message_handler(int irq, void *data) +{ + struct fmn_message_handler *hndlr; + int bucket, rv; + int size = 0, code = 0, src_stnid = 0; + struct nlm_fmn_msg msg; + uint32_t mflags, bkt_status; + + mflags = nlm_cop2_enable(); + /* Disable message ring interrupt */ + nlm_fmn_setup_intr(irq, 0); + while (1) { + /* 8 bkts per core, [24:31] each bit represents one bucket + * Bit is Zero if bucket is not empty */ + bkt_status = (nlm_read_c2_status() >> 24) & 0xff; + if (bkt_status == 0xff) + break; + for (bucket = 0; bucket < 8; bucket++) { + /* Continue on empty bucket */ + if (bkt_status & (1 << bucket)) + continue; + rv = nlm_fmn_receive(bucket, &size, &code, &src_stnid, + &msg); + if (rv != 0) + continue; + + hndlr = &msg_handlers[src_stnid]; + if (hndlr->action == NULL) + pr_warn("No msgring handler for stnid %d\n", + src_stnid); + else { + nlm_cop2_restore(mflags); + hndlr->action(bucket, src_stnid, size, code, + &msg, hndlr->arg); + mflags = nlm_cop2_enable(); + } + } + }; + /* Enable message ring intr, to any thread in core */ + nlm_fmn_setup_intr(irq, (1 << nlm_threads_per_core) - 1); + nlm_cop2_restore(mflags); + return IRQ_HANDLED; +} + +struct irqaction fmn_irqaction = { + .handler = fmn_message_handler, + .flags = IRQF_PERCPU, + .name = "fmn", +}; + +void xlr_percpu_fmn_init(void) +{ + struct xlr_fmn_info *cpu_fmn_info; + int *bucket_sizes; + uint32_t flags; + int id; + + BUG_ON(nlm_thread_id() != 0); + id = nlm_core_id(); + + bucket_sizes = xlr_board_fmn_config.bucket_size; + cpu_fmn_info = &xlr_board_fmn_config.cpu[id]; + flags = nlm_cop2_enable(); + + /* Setup bucket sizes for the core. */ + nlm_write_c2_bucksize(0, bucket_sizes[id * 8 + 0]); + nlm_write_c2_bucksize(1, bucket_sizes[id * 8 + 1]); + nlm_write_c2_bucksize(2, bucket_sizes[id * 8 + 2]); + nlm_write_c2_bucksize(3, bucket_sizes[id * 8 + 3]); + nlm_write_c2_bucksize(4, bucket_sizes[id * 8 + 4]); + nlm_write_c2_bucksize(5, bucket_sizes[id * 8 + 5]); + nlm_write_c2_bucksize(6, bucket_sizes[id * 8 + 6]); + nlm_write_c2_bucksize(7, bucket_sizes[id * 8 + 7]); + + /* + * For sending FMN messages, we need credits on the destination + * bucket. Program the credits this core has on the 128 possible + * destination buckets. + * We cannot use a loop here, because the the first argument has + * to be a constant integer value. + */ + COP2_CC_INIT_CPU_DEST(0, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(1, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(2, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(3, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(4, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(5, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(6, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(7, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(8, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(9, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(10, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(11, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(12, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(13, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(14, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(15, cpu_fmn_info->credit_config); + + /* enable FMN interrupts on this CPU */ + nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1); + nlm_cop2_restore(flags); +} + + +/* + * Register a FMN message handler with respect to the source station id + * @stnid: source station id + * @action: Handler function pointer + */ +int nlm_register_fmn_handler(int start_stnid, int end_stnid, + void (*action)(int, int, int, int, struct nlm_fmn_msg *, void *), + void *arg) +{ + int sstnid; + + for (sstnid = start_stnid; sstnid <= end_stnid; sstnid++) { + msg_handlers[sstnid].arg = arg; + smp_wmb(); + msg_handlers[sstnid].action = action; + } + pr_debug("Registered FMN msg handler for stnid %d-%d\n", + start_stnid, end_stnid); + return 0; +} + +void nlm_setup_fmn_irq(void) +{ + uint32_t flags; + + /* setup irq only once */ + setup_irq(IRQ_FMN, &fmn_irqaction); + + flags = nlm_cop2_enable(); + nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1); + nlm_cop2_restore(flags); +} diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c index 696d4248b92f..4e7f49d3d5a8 100644 --- a/arch/mips/netlogic/xlr/setup.c +++ b/arch/mips/netlogic/xlr/setup.c @@ -49,6 +49,7 @@ #include <asm/netlogic/xlr/iomap.h> #include <asm/netlogic/xlr/pic.h> #include <asm/netlogic/xlr/gpio.h> +#include <asm/netlogic/xlr/fmn.h> uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE; struct psb_info nlm_prom_info; @@ -111,6 +112,12 @@ void __init prom_free_prom_memory(void) /* Nothing yet */ } +void nlm_percpu_init(int hwcpuid) +{ + if (hwcpuid % 4 == 0) + xlr_percpu_fmn_init(); +} + static void __init build_arcs_cmdline(int *argv) { int i, remain, len; @@ -208,4 +215,6 @@ void __init prom_init(void) nlm_wakeup_secondary_cpus(); register_smp_ops(&nlm_smp_ops); #endif + xlr_board_info_setup(); + xlr_percpu_fmn_init(); } |