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authorJayachandran C <jayachandranc@netlogicmicro.com>2011-11-11 17:08:29 +0530
committerRalf Baechle <ralf@linux-mips.org>2011-12-07 22:04:55 +0000
commit0c9654072a6e15aa3da9b314f0c5c01e90938268 (patch)
tree865bbcf93aac081b15bf38604384e4bf7620024b /arch/mips/netlogic/xlr/smp.c
parent99fb2f7984726ba03d5634df8e6d26eb891f1ec3 (diff)
MIPS: Netlogic: Move code common with XLP to common/
- Move code that can be shared with XLP (irq.c, smp.c, time.c and xlr_console.c) to arch/mips/netlogic/common - Add asm/netlogic/haldefs.h and asm/netlogic/common.h for common and io functions shared with XLP - remove type 'nlm_reg_t *' and use uint64_t for mmio offsets - Move XLR specific code in smp.c to xlr/wakeup.c - Move XLR specific PCI code from irq.c to mips/pci/pci-xlr.c - Provide API for pic functions called from common/irq.c Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2964/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/netlogic/xlr/smp.c')
-rw-r--r--arch/mips/netlogic/xlr/smp.c220
1 files changed, 0 insertions, 220 deletions
diff --git a/arch/mips/netlogic/xlr/smp.c b/arch/mips/netlogic/xlr/smp.c
deleted file mode 100644
index 080284ded50..00000000000
--- a/arch/mips/netlogic/xlr/smp.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/irq.h>
-
-#include <asm/mmu_context.h>
-
-#include <asm/netlogic/interrupt.h>
-#include <asm/netlogic/mips-extns.h>
-
-#include <asm/netlogic/xlr/iomap.h>
-#include <asm/netlogic/xlr/pic.h>
-#include <asm/netlogic/xlr/xlr.h>
-
-void core_send_ipi(int logical_cpu, unsigned int action)
-{
- int cpu = cpu_logical_map(logical_cpu);
- u32 tid = cpu & 0x3;
- u32 pid = (cpu >> 2) & 0x07;
- u32 ipi = (tid << 16) | (pid << 20);
-
- if (action & SMP_CALL_FUNCTION)
- ipi |= IRQ_IPI_SMP_FUNCTION;
- else if (action & SMP_RESCHEDULE_YOURSELF)
- ipi |= IRQ_IPI_SMP_RESCHEDULE;
- else
- return;
-
- pic_send_ipi(ipi);
-}
-
-void nlm_send_ipi_single(int cpu, unsigned int action)
-{
- core_send_ipi(cpu, action);
-}
-
-void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
-{
- int cpu;
-
- for_each_cpu(cpu, mask) {
- core_send_ipi(cpu, action);
- }
-}
-
-/* IRQ_IPI_SMP_FUNCTION Handler */
-void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc)
-{
- smp_call_function_interrupt();
-}
-
-/* IRQ_IPI_SMP_RESCHEDULE handler */
-void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc)
-{
- scheduler_ipi();
-}
-
-/*
- * Called before going into mips code, early cpu init
- */
-void nlm_early_init_secondary(void)
-{
- write_c0_ebase((uint32_t)nlm_common_ebase);
- /* TLB partition here later */
-}
-
-/*
- * Code to run on secondary just after probing the CPU
- */
-static void __cpuinit nlm_init_secondary(void)
-{
- nlm_smp_irq_init();
-}
-
-void nlm_smp_finish(void)
-{
-#ifdef notyet
- nlm_common_msgring_cpu_init();
-#endif
- local_irq_enable();
-}
-
-void nlm_cpus_done(void)
-{
-}
-
-/*
- * Boot all other cpus in the system, initialize them, and bring them into
- * the boot function
- */
-int nlm_cpu_unblock[NR_CPUS];
-int nlm_cpu_ready[NR_CPUS];
-unsigned long nlm_next_gp;
-unsigned long nlm_next_sp;
-cpumask_t phys_cpu_present_map;
-
-void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
-{
- unsigned long gp = (unsigned long)task_thread_info(idle);
- unsigned long sp = (unsigned long)__KSTK_TOS(idle);
- int cpu = cpu_logical_map(logical_cpu);
-
- nlm_next_sp = sp;
- nlm_next_gp = gp;
-
- /* barrier */
- __sync();
- nlm_cpu_unblock[cpu] = 1;
-}
-
-void __init nlm_smp_setup(void)
-{
- unsigned int boot_cpu;
- int num_cpus, i;
-
- boot_cpu = hard_smp_processor_id();
- cpus_clear(phys_cpu_present_map);
-
- cpu_set(boot_cpu, phys_cpu_present_map);
- __cpu_number_map[boot_cpu] = 0;
- __cpu_logical_map[0] = boot_cpu;
- cpu_set(0, cpu_possible_map);
-
- num_cpus = 1;
- for (i = 0; i < NR_CPUS; i++) {
- /*
- * BSP is not set in nlm_cpu_ready array, it is only for
- * ASPs (goto see smpboot.S)
- */
- if (nlm_cpu_ready[i]) {
- cpu_set(i, phys_cpu_present_map);
- __cpu_number_map[i] = num_cpus;
- __cpu_logical_map[num_cpus] = i;
- cpu_set(num_cpus, cpu_possible_map);
- ++num_cpus;
- }
- }
-
- pr_info("Phys CPU present map: %lx, possible map %lx\n",
- (unsigned long)phys_cpu_present_map.bits[0],
- (unsigned long)cpu_possible_map.bits[0]);
-
- pr_info("Detected %i Slave CPU(s)\n", num_cpus);
-}
-
-void nlm_prepare_cpus(unsigned int max_cpus)
-{
-}
-
-struct plat_smp_ops nlm_smp_ops = {
- .send_ipi_single = nlm_send_ipi_single,
- .send_ipi_mask = nlm_send_ipi_mask,
- .init_secondary = nlm_init_secondary,
- .smp_finish = nlm_smp_finish,
- .cpus_done = nlm_cpus_done,
- .boot_secondary = nlm_boot_secondary,
- .smp_setup = nlm_smp_setup,
- .prepare_cpus = nlm_prepare_cpus,
-};
-
-unsigned long secondary_entry_point;
-
-int __cpuinit nlm_wakeup_secondary_cpus(u32 wakeup_mask)
-{
- unsigned int tid, pid, ipi, i, boot_cpu;
- void *reset_vec;
-
- secondary_entry_point = (unsigned long)prom_pre_boot_secondary_cpus;
- reset_vec = (void *)CKSEG1ADDR(0x1fc00000);
- memcpy(reset_vec, nlm_boot_smp_nmi, 0x80);
- boot_cpu = hard_smp_processor_id();
-
- for (i = 0; i < NR_CPUS; i++) {
- if (i == boot_cpu)
- continue;
- if (wakeup_mask & (1u << i)) {
- tid = i & 0x3;
- pid = (i >> 2) & 0x7;
- ipi = (tid << 16) | (pid << 20) | (1 << 8);
- pic_send_ipi(ipi);
- }
- }
-
- return 0;
-}