platform-$(CONFIG_MACH_LOONGSON64) += loongson64/
platform-$(CONFIG_MIPS_MALTA) += mti-malta/
platform-$(CONFIG_NLM_COMMON) += netlogic/
-platform-$(CONFIG_MIPS_PARAVIRT) += paravirt/
platform-$(CONFIG_PIC32MZDA) += pic32/
platform-$(CONFIG_MACH_PISTACHIO) += pistachio/
platform-$(CONFIG_SOC_PNX833X) += pnx833x/
This board is based on Netlogic XLP Processor.
Say Y here if you have a XLP based board.
-config MIPS_PARAVIRT
- bool "Para-Virtualized guest system"
- select CEVT_R4K
- select CSRC_R4K
- select SYS_SUPPORTS_64BIT_KERNEL
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_BIG_ENDIAN
- select SYS_SUPPORTS_SMP
- select NR_CPUS_DEFAULT_4
- select SYS_HAS_EARLY_PRINTK
- select SYS_HAS_CPU_MIPS32_R2
- select SYS_HAS_CPU_MIPS64_R2
- select SYS_HAS_CPU_CAVIUM_OCTEON
- select HAVE_PCI
- select SWAP_IO_SPACE
- help
- This option supports guest running under ????
-
endchoice
source "arch/mips/alchemy/Kconfig"
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
source "arch/mips/netlogic/Kconfig"
-source "arch/mips/paravirt/Kconfig"
endmenu
+++ /dev/null
-CONFIG_SYSVIPC=y
-CONFIG_PREEMPT=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_BSD_PROCESS_ACCT_V3=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_RELAY=y
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_EXPERT=y
-CONFIG_SLAB=y
-CONFIG_MIPS_PARAVIRT=y
-CONFIG_CPU_MIPS64_R2=y
-CONFIG_64BIT=y
-CONFIG_SMP=y
-CONFIG_HZ_1000=y
-CONFIG_PCI=y
-CONFIG_MIPS32_O32=y
-CONFIG_MIPS32_N32=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_TRANSPARENT_HUGEPAGE=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_IP_MULTIPLE_TABLES=y
-CONFIG_IP_ROUTE_MULTIPATH=y
-CONFIG_IP_ROUTE_VERBOSE=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
-CONFIG_IP_MROUTE=y
-CONFIG_IP_PIMSM_V1=y
-CONFIG_IP_PIMSM_V2=y
-CONFIG_SYN_COOKIES=y
-# CONFIG_WIRELESS is not set
-# CONFIG_FW_LOADER is not set
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_VIRTIO_BLK=y
-CONFIG_SCSI=y
-CONFIG_BLK_DEV_SD=y
-CONFIG_NETDEVICES=y
-CONFIG_VIRTIO_NET=y
-# CONFIG_NET_VENDOR_BROADCOM is not set
-# CONFIG_NET_VENDOR_INTEL is not set
-# CONFIG_NET_VENDOR_MARVELL is not set
-# CONFIG_NET_VENDOR_MICREL is not set
-# CONFIG_NET_VENDOR_NATSEMI is not set
-# CONFIG_NET_VENDOR_SMSC is not set
-# CONFIG_NET_VENDOR_STMICRO is not set
-# CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_PHYLIB=y
-CONFIG_BCM87XX_PHY=y
-CONFIG_BROADCOM_PHY=y
-CONFIG_MARVELL_PHY=y
-# CONFIG_WLAN is not set
-# CONFIG_INPUT is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-CONFIG_VIRTIO_CONSOLE=y
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-# CONFIG_USB_SUPPORT is not set
-CONFIG_VIRTIO_PCI=y
-CONFIG_VIRTIO_BALLOON=y
-CONFIG_VIRTIO_MMIO=y
-# CONFIG_IOMMU_SUPPORT is not set
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_POSIX_ACL=y
-CONFIG_EXT4_FS_SECURITY=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_HUGETLBFS=y
-# CONFIG_MISC_FILESYSTEMS is not set
-CONFIG_NFS_FS=y
-CONFIG_NFS_V4=y
-CONFIG_NFS_V4_1=y
-CONFIG_ROOT_NFS=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_ASCII=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_NLS_UTF8=y
-CONFIG_CRYPTO_CBC=y
-CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_DES=y
-CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_SCHED_DEBUG is not set
-# CONFIG_FTRACE is not set
generated-y += syscall_table_64_n64.h
generated-y += syscall_table_64_o32.h
generic-y += export.h
+generic-y += kvm_para.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += parport.h
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_MIPS_KVM_PARA_H
-#define _ASM_MIPS_KVM_PARA_H
-
-#include <uapi/asm/kvm_para.h>
-
-#define KVM_HYPERCALL ".word 0x42000028"
-
-/*
- * Hypercalls for KVM.
- *
- * Hypercall number is passed in v0.
- * Return value will be placed in v0.
- * Up to 3 arguments are passed in a0, a1, and a2.
- */
-static inline unsigned long kvm_hypercall0(unsigned long num)
-{
- register unsigned long n asm("v0");
- register unsigned long r asm("v0");
-
- n = num;
- __asm__ __volatile__(
- KVM_HYPERCALL
- : "=r" (r) : "r" (n) : "memory"
- );
-
- return r;
-}
-
-static inline unsigned long kvm_hypercall1(unsigned long num,
- unsigned long arg0)
-{
- register unsigned long n asm("v0");
- register unsigned long r asm("v0");
- register unsigned long a0 asm("a0");
-
- n = num;
- a0 = arg0;
- __asm__ __volatile__(
- KVM_HYPERCALL
- : "=r" (r) : "r" (n), "r" (a0) : "memory"
- );
-
- return r;
-}
-
-static inline unsigned long kvm_hypercall2(unsigned long num,
- unsigned long arg0, unsigned long arg1)
-{
- register unsigned long n asm("v0");
- register unsigned long r asm("v0");
- register unsigned long a0 asm("a0");
- register unsigned long a1 asm("a1");
-
- n = num;
- a0 = arg0;
- a1 = arg1;
- __asm__ __volatile__(
- KVM_HYPERCALL
- : "=r" (r) : "r" (n), "r" (a0), "r" (a1) : "memory"
- );
-
- return r;
-}
-
-static inline unsigned long kvm_hypercall3(unsigned long num,
- unsigned long arg0, unsigned long arg1, unsigned long arg2)
-{
- register unsigned long n asm("v0");
- register unsigned long r asm("v0");
- register unsigned long a0 asm("a0");
- register unsigned long a1 asm("a1");
- register unsigned long a2 asm("a2");
-
- n = num;
- a0 = arg0;
- a1 = arg1;
- a2 = arg2;
- __asm__ __volatile__(
- KVM_HYPERCALL
- : "=r" (r) : "r" (n), "r" (a0), "r" (a1), "r" (a2) : "memory"
- );
-
- return r;
-}
-
-static inline bool kvm_check_and_clear_guest_paused(void)
-{
- return false;
-}
-
-static inline unsigned int kvm_arch_para_features(void)
-{
- return 0;
-}
-
-static inline unsigned int kvm_arch_para_hints(void)
-{
- return 0;
-}
-
-#ifdef CONFIG_MIPS_PARAVIRT
-static inline bool kvm_para_available(void)
-{
- return true;
-}
-#else
-static inline bool kvm_para_available(void)
-{
- return false;
-}
-#endif
-
-
-#endif /* _ASM_MIPS_KVM_PARA_H */
generated-y += unistd_nr_n32.h
generated-y += unistd_nr_n64.h
generated-y += unistd_nr_o32.h
+
+generic-y += kvm_para.h
+++ /dev/null
-#ifndef _UAPI_ASM_MIPS_KVM_PARA_H
-#define _UAPI_ASM_MIPS_KVM_PARA_H
-
-
-#endif /* _UAPI_ASM_MIPS_KVM_PARA_H */
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-if MIPS_PARAVIRT
-
-config MIPS_PCI_VIRTIO
- def_bool y
-
-endif # MIPS_PARAVIRT
+++ /dev/null
-#
-# Makefile for MIPS para-virtualized specific kernel interface routines
-# under Linux.
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2013 Cavium, Inc.
-#
-
-obj-y := setup.o serial.o paravirt-irq.o
-
-obj-$(CONFIG_SMP) += paravirt-smp.o
+++ /dev/null
-#
-# Generic para-virtualized guest.
-#
-cflags-$(CONFIG_MIPS_PARAVIRT) += \
- -I$(srctree)/arch/mips/include/asm/mach-paravirt
-
-load-$(CONFIG_MIPS_PARAVIRT) = 0xffffffff80010000
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc.
- */
-
-#include <linux/interrupt.h>
-#include <linux/cpumask.h>
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-
-#include <asm/io.h>
-
-#define MBOX_BITS_PER_CPU 2
-
-static int cpunum_for_cpu(int cpu)
-{
-#ifdef CONFIG_SMP
- return cpu_logical_map(cpu);
-#else
- return get_ebase_cpunum();
-#endif
-}
-
-struct core_chip_data {
- struct mutex core_irq_mutex;
- bool current_en;
- bool desired_en;
- u8 bit;
-};
-
-static struct core_chip_data irq_core_chip_data[8];
-
-static void irq_core_ack(struct irq_data *data)
-{
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
- unsigned int bit = cd->bit;
-
- /*
- * We don't need to disable IRQs to make these atomic since
- * they are already disabled earlier in the low level
- * interrupt code.
- */
- clear_c0_status(0x100 << bit);
- /* The two user interrupts must be cleared manually. */
- if (bit < 2)
- clear_c0_cause(0x100 << bit);
-}
-
-static void irq_core_eoi(struct irq_data *data)
-{
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
-
- /*
- * We don't need to disable IRQs to make these atomic since
- * they are already disabled earlier in the low level
- * interrupt code.
- */
- set_c0_status(0x100 << cd->bit);
-}
-
-static void irq_core_set_enable_local(void *arg)
-{
- struct irq_data *data = arg;
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
- unsigned int mask = 0x100 << cd->bit;
-
- /*
- * Interrupts are already disabled, so these are atomic.
- */
- if (cd->desired_en)
- set_c0_status(mask);
- else
- clear_c0_status(mask);
-
-}
-
-static void irq_core_disable(struct irq_data *data)
-{
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
- cd->desired_en = false;
-}
-
-static void irq_core_enable(struct irq_data *data)
-{
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
- cd->desired_en = true;
-}
-
-static void irq_core_bus_lock(struct irq_data *data)
-{
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
-
- mutex_lock(&cd->core_irq_mutex);
-}
-
-static void irq_core_bus_sync_unlock(struct irq_data *data)
-{
- struct core_chip_data *cd = irq_data_get_irq_chip_data(data);
-
- if (cd->desired_en != cd->current_en) {
- on_each_cpu(irq_core_set_enable_local, data, 1);
- cd->current_en = cd->desired_en;
- }
-
- mutex_unlock(&cd->core_irq_mutex);
-}
-
-static struct irq_chip irq_chip_core = {
- .name = "Core",
- .irq_enable = irq_core_enable,
- .irq_disable = irq_core_disable,
- .irq_ack = irq_core_ack,
- .irq_eoi = irq_core_eoi,
- .irq_bus_lock = irq_core_bus_lock,
- .irq_bus_sync_unlock = irq_core_bus_sync_unlock,
-
- .irq_cpu_online = irq_core_eoi,
- .irq_cpu_offline = irq_core_ack,
- .flags = IRQCHIP_ONOFFLINE_ENABLED,
-};
-
-static void __init irq_init_core(void)
-{
- int i;
- int irq;
- struct core_chip_data *cd;
-
- /* Start with a clean slate */
- clear_c0_status(ST0_IM);
- clear_c0_cause(CAUSEF_IP0 | CAUSEF_IP1);
-
- for (i = 0; i < ARRAY_SIZE(irq_core_chip_data); i++) {
- cd = irq_core_chip_data + i;
- cd->current_en = false;
- cd->desired_en = false;
- cd->bit = i;
- mutex_init(&cd->core_irq_mutex);
-
- irq = MIPS_CPU_IRQ_BASE + i;
-
- switch (i) {
- case 0: /* SW0 */
- case 1: /* SW1 */
- case 5: /* IP5 */
- case 6: /* IP6 */
- case 7: /* IP7 */
- irq_set_chip_data(irq, cd);
- irq_set_chip_and_handler(irq, &irq_chip_core,
- handle_percpu_irq);
- break;
- default:
- break;
- }
- }
-}
-
-static void __iomem *mips_irq_chip;
-#define MIPS_IRQ_CHIP_NUM_BITS 0
-#define MIPS_IRQ_CHIP_REGS 8
-
-static int mips_irq_cpu_stride;
-static int mips_irq_chip_reg_raw;
-static int mips_irq_chip_reg_src;
-static int mips_irq_chip_reg_en;
-static int mips_irq_chip_reg_raw_w1s;
-static int mips_irq_chip_reg_raw_w1c;
-static int mips_irq_chip_reg_en_w1s;
-static int mips_irq_chip_reg_en_w1c;
-
-static void irq_pci_enable(struct irq_data *data)
-{
- u32 mask = 1u << data->irq;
-
- __raw_writel(mask, mips_irq_chip + mips_irq_chip_reg_en_w1s);
-}
-
-static void irq_pci_disable(struct irq_data *data)
-{
- u32 mask = 1u << data->irq;
-
- __raw_writel(mask, mips_irq_chip + mips_irq_chip_reg_en_w1c);
-}
-
-static void irq_pci_ack(struct irq_data *data)
-{
-}
-
-static void irq_pci_mask(struct irq_data *data)
-{
- u32 mask = 1u << data->irq;
-
- __raw_writel(mask, mips_irq_chip + mips_irq_chip_reg_en_w1c);
-}
-
-static void irq_pci_unmask(struct irq_data *data)
-{
- u32 mask = 1u << data->irq;
-
- __raw_writel(mask, mips_irq_chip + mips_irq_chip_reg_en_w1s);
-}
-
-static struct irq_chip irq_chip_pci = {
- .name = "PCI",
- .irq_enable = irq_pci_enable,
- .irq_disable = irq_pci_disable,
- .irq_ack = irq_pci_ack,
- .irq_mask = irq_pci_mask,
- .irq_unmask = irq_pci_unmask,
-};
-
-static void irq_mbox_all(struct irq_data *data, void __iomem *base)
-{
- int cpu;
- unsigned int mbox = data->irq - MIPS_IRQ_MBOX0;
- u32 mask;
-
- WARN_ON(mbox >= MBOX_BITS_PER_CPU);
-
- for_each_online_cpu(cpu) {
- unsigned int cpuid = cpunum_for_cpu(cpu);
- mask = 1 << (cpuid * MBOX_BITS_PER_CPU + mbox);
- __raw_writel(mask, base + (cpuid * mips_irq_cpu_stride));
- }
-}
-
-static void irq_mbox_enable(struct irq_data *data)
-{
- irq_mbox_all(data, mips_irq_chip + mips_irq_chip_reg_en_w1s + sizeof(u32));
-}
-
-static void irq_mbox_disable(struct irq_data *data)
-{
- irq_mbox_all(data, mips_irq_chip + mips_irq_chip_reg_en_w1c + sizeof(u32));
-}
-
-static void irq_mbox_ack(struct irq_data *data)
-{
- u32 mask;
- unsigned int mbox = data->irq - MIPS_IRQ_MBOX0;
-
- WARN_ON(mbox >= MBOX_BITS_PER_CPU);
-
- mask = 1 << (get_ebase_cpunum() * MBOX_BITS_PER_CPU + mbox);
- __raw_writel(mask, mips_irq_chip + mips_irq_chip_reg_raw_w1c + sizeof(u32));
-}
-
-void irq_mbox_ipi(int cpu, unsigned int actions)
-{
- unsigned int cpuid = cpunum_for_cpu(cpu);
- u32 mask;
-
- WARN_ON(actions >= (1 << MBOX_BITS_PER_CPU));
-
- mask = actions << (cpuid * MBOX_BITS_PER_CPU);
- __raw_writel(mask, mips_irq_chip + mips_irq_chip_reg_raw_w1s + sizeof(u32));
-}
-
-static void irq_mbox_cpu_onoffline(struct irq_data *data, void __iomem *base)
-{
- unsigned int mbox = data->irq - MIPS_IRQ_MBOX0;
- unsigned int cpuid = get_ebase_cpunum();
- u32 mask;
-
- WARN_ON(mbox >= MBOX_BITS_PER_CPU);
-
- mask = 1 << (cpuid * MBOX_BITS_PER_CPU + mbox);
- __raw_writel(mask, base + (cpuid * mips_irq_cpu_stride));
-
-}
-
-static void irq_mbox_cpu_online(struct irq_data *data)
-{
- irq_mbox_cpu_onoffline(data, mips_irq_chip + mips_irq_chip_reg_en_w1s + sizeof(u32));
-}
-
-static void irq_mbox_cpu_offline(struct irq_data *data)
-{
- irq_mbox_cpu_onoffline(data, mips_irq_chip + mips_irq_chip_reg_en_w1c + sizeof(u32));
-}
-
-static struct irq_chip irq_chip_mbox = {
- .name = "MBOX",
- .irq_enable = irq_mbox_enable,
- .irq_disable = irq_mbox_disable,
- .irq_ack = irq_mbox_ack,
- .irq_cpu_online = irq_mbox_cpu_online,
- .irq_cpu_offline = irq_mbox_cpu_offline,
- .flags = IRQCHIP_ONOFFLINE_ENABLED,
-};
-
-static void __init irq_pci_init(void)
-{
- int i, stride;
- u32 num_bits;
-
- mips_irq_chip = ioremap(0x1e010000, 4096);
-
- num_bits = __raw_readl(mips_irq_chip + MIPS_IRQ_CHIP_NUM_BITS);
- stride = 8 * (1 + ((num_bits - 1) / 64));
-
-
- pr_notice("mips_irq_chip: %u bits, reg stride: %d\n", num_bits, stride);
- mips_irq_chip_reg_raw = MIPS_IRQ_CHIP_REGS + 0 * stride;
- mips_irq_chip_reg_raw_w1s = MIPS_IRQ_CHIP_REGS + 1 * stride;
- mips_irq_chip_reg_raw_w1c = MIPS_IRQ_CHIP_REGS + 2 * stride;
- mips_irq_chip_reg_src = MIPS_IRQ_CHIP_REGS + 3 * stride;
- mips_irq_chip_reg_en = MIPS_IRQ_CHIP_REGS + 4 * stride;
- mips_irq_chip_reg_en_w1s = MIPS_IRQ_CHIP_REGS + 5 * stride;
- mips_irq_chip_reg_en_w1c = MIPS_IRQ_CHIP_REGS + 6 * stride;
- mips_irq_cpu_stride = stride * 4;
-
- for (i = 0; i < 4; i++)
- irq_set_chip_and_handler(i + MIPS_IRQ_PCIA, &irq_chip_pci, handle_level_irq);
-
- for (i = 0; i < 2; i++)
- irq_set_chip_and_handler(i + MIPS_IRQ_MBOX0, &irq_chip_mbox, handle_percpu_irq);
-
-
- set_c0_status(STATUSF_IP2);
-}
-
-static void irq_pci_dispatch(void)
-{
- unsigned int cpuid = get_ebase_cpunum();
- u32 en;
-
- en = __raw_readl(mips_irq_chip + mips_irq_chip_reg_src +
- (cpuid * mips_irq_cpu_stride));
-
- if (!en) {
- en = __raw_readl(mips_irq_chip + mips_irq_chip_reg_src + (cpuid * mips_irq_cpu_stride) + sizeof(u32));
- en = (en >> (2 * cpuid)) & 3;
-
- if (!en)
- spurious_interrupt();
- else
- do_IRQ(__ffs(en) + MIPS_IRQ_MBOX0); /* MBOX type */
- } else {
- do_IRQ(__ffs(en));
- }
-}
-
-
-void __init arch_init_irq(void)
-{
- irq_init_core();
- irq_pci_init();
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
- int ip;
-
- if (unlikely(!pending)) {
- spurious_interrupt();
- return;
- }
-
- ip = ffs(pending) - 1 - STATUSB_IP0;
- if (ip == 2)
- irq_pci_dispatch();
- else
- do_IRQ(MIPS_CPU_IRQ_BASE + ip);
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc.
- */
-
-#include <linux/interrupt.h>
-#include <linux/cpumask.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-
-#include <asm/mipsregs.h>
-#include <asm/setup.h>
-#include <asm/time.h>
-#include <asm/smp.h>
-
-/*
- * Writing the sp releases the CPU, so writes must be ordered, gp
- * first, then sp.
- */
-unsigned long paravirt_smp_sp[NR_CPUS];
-unsigned long paravirt_smp_gp[NR_CPUS];
-
-static int numcpus = 1;
-
-static int __init set_numcpus(char *str)
-{
- int newval;
-
- if (get_option(&str, &newval)) {
- if (newval < 1 || newval >= NR_CPUS)
- goto bad;
- numcpus = newval;
- return 0;
- }
-bad:
- return -EINVAL;
-}
-early_param("numcpus", set_numcpus);
-
-
-static void paravirt_smp_setup(void)
-{
- int id;
- unsigned int cpunum = get_ebase_cpunum();
-
- if (WARN_ON(cpunum >= NR_CPUS))
- return;
-
- /* The present CPUs are initially just the boot cpu (CPU 0). */
- for (id = 0; id < NR_CPUS; id++) {
- set_cpu_possible(id, id == 0);
- set_cpu_present(id, id == 0);
- }
- __cpu_number_map[cpunum] = 0;
- __cpu_logical_map[0] = cpunum;
-
- for (id = 0; id < numcpus; id++) {
- set_cpu_possible(id, true);
- set_cpu_present(id, true);
- __cpu_number_map[id] = id;
- __cpu_logical_map[id] = id;
- }
-}
-
-void irq_mbox_ipi(int cpu, unsigned int actions);
-static void paravirt_send_ipi_single(int cpu, unsigned int action)
-{
- irq_mbox_ipi(cpu, action);
-}
-
-static void paravirt_send_ipi_mask(const struct cpumask *mask, unsigned int action)
-{
- unsigned int cpu;
-
- for_each_cpu(cpu, mask)
- paravirt_send_ipi_single(cpu, action);
-}
-
-static void paravirt_init_secondary(void)
-{
- unsigned int sr;
-
- sr = set_c0_status(ST0_BEV);
- write_c0_ebase((u32)ebase);
-
- sr |= STATUSF_IP2; /* Interrupt controller on IP2 */
- write_c0_status(sr);
-
- irq_cpu_online();
-}
-
-static void paravirt_smp_finish(void)
-{
- /* to generate the first CPU timer interrupt */
- write_c0_compare(read_c0_count() + mips_hpt_frequency / HZ);
- local_irq_enable();
-}
-
-static int paravirt_boot_secondary(int cpu, struct task_struct *idle)
-{
- paravirt_smp_gp[cpu] = (unsigned long)task_thread_info(idle);
- smp_wmb();
- paravirt_smp_sp[cpu] = __KSTK_TOS(idle);
- return 0;
-}
-
-static irqreturn_t paravirt_reched_interrupt(int irq, void *dev_id)
-{
- scheduler_ipi();
- return IRQ_HANDLED;
-}
-
-static irqreturn_t paravirt_function_interrupt(int irq, void *dev_id)
-{
- generic_smp_call_function_interrupt();
- return IRQ_HANDLED;
-}
-
-static void paravirt_prepare_cpus(unsigned int max_cpus)
-{
- if (request_irq(MIPS_IRQ_MBOX0, paravirt_reched_interrupt,
- IRQF_PERCPU | IRQF_NO_THREAD, "Scheduler",
- paravirt_reched_interrupt)) {
- panic("Cannot request_irq for SchedulerIPI");
- }
- if (request_irq(MIPS_IRQ_MBOX1, paravirt_function_interrupt,
- IRQF_PERCPU | IRQF_NO_THREAD, "SMP-Call",
- paravirt_function_interrupt)) {
- panic("Cannot request_irq for SMP-Call");
- }
-}
-
-const struct plat_smp_ops paravirt_smp_ops = {
- .send_ipi_single = paravirt_send_ipi_single,
- .send_ipi_mask = paravirt_send_ipi_mask,
- .init_secondary = paravirt_init_secondary,
- .smp_finish = paravirt_smp_finish,
- .boot_secondary = paravirt_boot_secondary,
- .smp_setup = paravirt_smp_setup,
- .prepare_cpus = paravirt_prepare_cpus,
-};
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/virtio_console.h>
-#include <linux/kvm_para.h>
-#include <asm/setup.h>
-
-/*
- * Emit one character to the boot console.
- */
-void prom_putchar(char c)
-{
- kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, 0 /* port 0 */,
- (unsigned long)&c, 1 /* len == 1 */);
-}
-
-#ifdef CONFIG_VIRTIO_CONSOLE
-static int paravirt_put_chars(u32 vtermno, const char *buf, int count)
-{
- kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, vtermno,
- (unsigned long)buf, count);
-
- return count;
-}
-
-static int __init paravirt_cons_init(void)
-{
- virtio_cons_early_init(paravirt_put_chars);
- return 0;
-}
-core_initcall(paravirt_cons_init);
-
-#endif
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/kvm_para.h>
-
-#include <asm/reboot.h>
-#include <asm/bootinfo.h>
-#include <asm/smp-ops.h>
-#include <asm/time.h>
-
-extern const struct plat_smp_ops paravirt_smp_ops;
-
-const char *get_system_type(void)
-{
- return "MIPS Para-Virtualized Guest";
-}
-
-void __init plat_time_init(void)
-{
- mips_hpt_frequency = kvm_hypercall0(KVM_HC_MIPS_GET_CLOCK_FREQ);
-
- preset_lpj = mips_hpt_frequency / (2 * HZ);
-}
-
-static void pv_machine_halt(void)
-{
- kvm_hypercall0(KVM_HC_MIPS_EXIT_VM);
-}
-
-/*
- * Early entry point for arch setup
- */
-void __init prom_init(void)
-{
- int i;
- int argc = fw_arg0;
- char **argv = (char **)fw_arg1;
-
-#ifdef CONFIG_32BIT
- set_io_port_base(KSEG1ADDR(0x1e000000));
-#else /* CONFIG_64BIT */
- set_io_port_base(PHYS_TO_XKSEG_UNCACHED(0x1e000000));
-#endif
-
- for (i = 0; i < argc; i++) {
- strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
- if (i < argc - 1)
- strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
- }
- _machine_halt = pv_machine_halt;
- register_smp_ops(¶virt_smp_ops);
-}
-
-void __init plat_mem_setup(void)
-{
- /* Do nothing, the "mem=???" parser handles our memory. */
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
obj-$(CONFIG_PCI_AR2315) += pci-ar2315.o
obj-$(CONFIG_SOC_AR71XX) += pci-ar71xx.o
obj-$(CONFIG_PCI_AR724X) += pci-ar724x.o
-obj-$(CONFIG_MIPS_PCI_VIRTIO) += pci-virtio-guest.o
obj-$(CONFIG_PCI_XTALK_BRIDGE) += pci-xtalk-bridge.o
#
# These are still pretty much in the old state, watch, go blind.
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-
-#include <uapi/asm/bitfield.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-
-#define PCI_CONFIG_ADDRESS 0xcf8
-#define PCI_CONFIG_DATA 0xcfc
-
-union pci_config_address {
- struct {
- __BITFIELD_FIELD(unsigned enable_bit : 1, /* 31 */
- __BITFIELD_FIELD(unsigned reserved : 7, /* 30 .. 24 */
- __BITFIELD_FIELD(unsigned bus_number : 8, /* 23 .. 16 */
- __BITFIELD_FIELD(unsigned devfn_number : 8, /* 15 .. 8 */
- __BITFIELD_FIELD(unsigned register_number : 8, /* 7 .. 0 */
- )))));
- };
- u32 w;
-};
-
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- return 0;
-}
-
-int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- return ((pin + slot) % 4)+ MIPS_IRQ_PCIA;
-}
-
-static void pci_virtio_guest_write_config_addr(struct pci_bus *bus,
- unsigned int devfn, int reg)
-{
- union pci_config_address pca = { .w = 0 };
-
- pca.register_number = reg;
- pca.devfn_number = devfn;
- pca.bus_number = bus->number;
- pca.enable_bit = 1;
-
- outl(pca.w, PCI_CONFIG_ADDRESS);
-}
-
-static int pci_virtio_guest_write_config(struct pci_bus *bus,
- unsigned int devfn, int reg, int size, u32 val)
-{
- pci_virtio_guest_write_config_addr(bus, devfn, reg);
-
- switch (size) {
- case 1:
- outb(val, PCI_CONFIG_DATA + (reg & 3));
- break;
- case 2:
- outw(val, PCI_CONFIG_DATA + (reg & 2));
- break;
- case 4:
- outl(val, PCI_CONFIG_DATA);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_virtio_guest_read_config(struct pci_bus *bus, unsigned int devfn,
- int reg, int size, u32 *val)
-{
- pci_virtio_guest_write_config_addr(bus, devfn, reg);
-
- switch (size) {
- case 1:
- *val = inb(PCI_CONFIG_DATA + (reg & 3));
- break;
- case 2:
- *val = inw(PCI_CONFIG_DATA + (reg & 2));
- break;
- case 4:
- *val = inl(PCI_CONFIG_DATA);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_virtio_guest_ops = {
- .read = pci_virtio_guest_read_config,
- .write = pci_virtio_guest_write_config,
-};
-
-static struct resource pci_virtio_guest_mem_resource = {
- .name = "Virtio MEM",
- .flags = IORESOURCE_MEM,
- .start = 0x10000000,
- .end = 0x1dffffff
-};
-
-static struct resource pci_virtio_guest_io_resource = {
- .name = "Virtio IO",
- .flags = IORESOURCE_IO,
- .start = 0,
- .end = 0xffff
-};
-
-static struct pci_controller pci_virtio_guest_controller = {
- .pci_ops = &pci_virtio_guest_ops,
- .mem_resource = &pci_virtio_guest_mem_resource,
- .io_resource = &pci_virtio_guest_io_resource,
-};
-
-static int __init pci_virtio_guest_setup(void)
-{
- pr_err("pci_virtio_guest_setup\n");
-
- /* Virtio comes pre-assigned */
- pci_set_flags(PCI_PROBE_ONLY);
-
- pci_virtio_guest_controller.io_map_base = mips_io_port_base;
- register_pci_controller(&pci_virtio_guest_controller);
- return 0;
-}
-arch_initcall(pci_virtio_guest_setup);
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