/* Any queues attached to this device */
struct virtqueue *vq;
+ /* Handle status being finalized (ie. feature bits stable). */
+ void (*ready)(struct device *me);
+
/* Device-specific data. */
void *priv;
};
write(waker_fd, &vq->dev->fd, sizeof(vq->dev->fd));
}
-/* When the Guest asks us to reset a device, it's is fairly easy. */
-static void reset_device(struct device *dev)
+/* When the Guest tells us they updated the status field, we handle it. */
+static void update_device_status(struct device *dev)
{
struct virtqueue *vq;
- verbose("Resetting device %s\n", dev->name);
- /* Clear the status. */
- dev->desc->status = 0;
+ /* This is a reset. */
+ if (dev->desc->status == 0) {
+ verbose("Resetting device %s\n", dev->name);
- /* Clear any features they've acked. */
- memset(get_feature_bits(dev) + dev->desc->feature_len, 0,
- dev->desc->feature_len);
+ /* Clear any features they've acked. */
+ memset(get_feature_bits(dev) + dev->desc->feature_len, 0,
+ dev->desc->feature_len);
- /* Zero out the virtqueues. */
- for (vq = dev->vq; vq; vq = vq->next) {
- memset(vq->vring.desc, 0,
- vring_size(vq->config.num, getpagesize()));
- vq->last_avail_idx = 0;
+ /* Zero out the virtqueues. */
+ for (vq = dev->vq; vq; vq = vq->next) {
+ memset(vq->vring.desc, 0,
+ vring_size(vq->config.num, getpagesize()));
+ vq->last_avail_idx = 0;
+ }
+ } else if (dev->desc->status & VIRTIO_CONFIG_S_FAILED) {
+ warnx("Device %s configuration FAILED", dev->name);
+ } else if (dev->desc->status & VIRTIO_CONFIG_S_DRIVER_OK) {
+ unsigned int i;
+
+ verbose("Device %s OK: offered", dev->name);
+ for (i = 0; i < dev->desc->feature_len; i++)
+ verbose(" %08x", get_feature_bits(dev)[i]);
+ verbose(", accepted");
+ for (i = 0; i < dev->desc->feature_len; i++)
+ verbose(" %08x", get_feature_bits(dev)
+ [dev->desc->feature_len+i]);
+
+ if (dev->ready)
+ dev->ready(dev);
}
}
/* Check each device and virtqueue. */
for (i = devices.dev; i; i = i->next) {
- /* Notifications to device descriptors reset the device. */
+ /* Notifications to device descriptors update device status. */
if (from_guest_phys(addr) == i->desc) {
- reset_device(i);
+ update_device_status(i);
return;
}
dev->handle_input = handle_input;
dev->name = name;
dev->vq = NULL;
+ dev->ready = NULL;
/* Append to device list. Prepending to a single-linked list is
* easier, but the user expects the devices to be arranged on the bus
struct vblk_info *vblk = dev->priv;
unsigned int head, out_num, in_num, wlen;
int ret;
- struct virtio_blk_inhdr *in;
+ u8 *in;
struct virtio_blk_outhdr *out;
struct iovec iov[dev->vq->vring.num];
off64_t off;
head, out_num, in_num);
out = convert(&iov[0], struct virtio_blk_outhdr);
- in = convert(&iov[out_num+in_num-1], struct virtio_blk_inhdr);
+ in = convert(&iov[out_num+in_num-1], u8);
off = out->sector * 512;
/* The block device implements "barriers", where the Guest indicates
* It'd be nice if we supported eject, for example, but we don't. */
if (out->type & VIRTIO_BLK_T_SCSI_CMD) {
fprintf(stderr, "Scsi commands unsupported\n");
- in->status = VIRTIO_BLK_S_UNSUPP;
+ *in = VIRTIO_BLK_S_UNSUPP;
wlen = sizeof(*in);
} else if (out->type & VIRTIO_BLK_T_OUT) {
/* Write */
errx(1, "Write past end %llu+%u", off, ret);
}
wlen = sizeof(*in);
- in->status = (ret >= 0 ? VIRTIO_BLK_S_OK : VIRTIO_BLK_S_IOERR);
+ *in = (ret >= 0 ? VIRTIO_BLK_S_OK : VIRTIO_BLK_S_IOERR);
} else {
/* Read */
verbose("READ from sector %llu: %i\n", out->sector, ret);
if (ret >= 0) {
wlen = sizeof(*in) + ret;
- in->status = VIRTIO_BLK_S_OK;
+ *in = VIRTIO_BLK_S_OK;
} else {
wlen = sizeof(*in);
- in->status = VIRTIO_BLK_S_IOERR;
+ *in = VIRTIO_BLK_S_IOERR;
}
}
current->state = TASK_INTERRUPTIBLE;
schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
return -ERESTARTNOHAND;
}
fs_initcall(acpi_map_iosapics);
#endif /* CONFIG_ACPI_NUMA */
-int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
+int __ref acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
int err;
{
unsigned int irq;
extern void ia64_process_pending_intr(void);
- extern void ia64_disable_timer(void);
extern volatile int time_keeper_id;
- ia64_disable_timer();
+ /* Mask ITV to disable timer */
+ ia64_set_itv(1 << 16);
/*
* Find a new timesync master
return NOTIFY_OK;
}
-static struct notifier_block palinfo_cpu_notifier __cpuinitdata =
+static struct notifier_block __refdata palinfo_cpu_notifier =
{
.notifier_call = palinfo_cpu_callback,
.priority = 0,
}
static pfm_context_t *
-pfm_context_alloc(void)
+pfm_context_alloc(int ctx_flags)
{
pfm_context_t *ctx;
ctx = kzalloc(sizeof(pfm_context_t), GFP_KERNEL);
if (ctx) {
DPRINT(("alloc ctx @%p\n", ctx));
+
+ /*
+ * init context protection lock
+ */
+ spin_lock_init(&ctx->ctx_lock);
+
+ /*
+ * context is unloaded
+ */
+ ctx->ctx_state = PFM_CTX_UNLOADED;
+
+ /*
+ * initialization of context's flags
+ */
+ ctx->ctx_fl_block = (ctx_flags & PFM_FL_NOTIFY_BLOCK) ? 1 : 0;
+ ctx->ctx_fl_system = (ctx_flags & PFM_FL_SYSTEM_WIDE) ? 1: 0;
+ ctx->ctx_fl_no_msg = (ctx_flags & PFM_FL_OVFL_NO_MSG) ? 1: 0;
+ /*
+ * will move to set properties
+ * ctx->ctx_fl_excl_idle = (ctx_flags & PFM_FL_EXCL_IDLE) ? 1: 0;
+ */
+
+ /*
+ * init restart semaphore to locked
+ */
+ init_completion(&ctx->ctx_restart_done);
+
+ /*
+ * activation is used in SMP only
+ */
+ ctx->ctx_last_activation = PFM_INVALID_ACTIVATION;
+ SET_LAST_CPU(ctx, -1);
+
+ /*
+ * initialize notification message queue
+ */
+ ctx->ctx_msgq_head = ctx->ctx_msgq_tail = 0;
+ init_waitqueue_head(&ctx->ctx_msgq_wait);
+ init_waitqueue_head(&ctx->ctx_zombieq);
+
}
return ctx;
}
};
-static int
-pfm_alloc_fd(struct file **cfile)
+static struct file *
+pfm_alloc_file(pfm_context_t *ctx)
{
- int fd, ret = 0;
- struct file *file = NULL;
- struct inode * inode;
+ struct file *file;
+ struct inode *inode;
+ struct dentry *dentry;
char name[32];
struct qstr this;
- fd = get_unused_fd();
- if (fd < 0) return -ENFILE;
-
- ret = -ENFILE;
-
- file = get_empty_filp();
- if (!file) goto out;
-
/*
* allocate a new inode
*/
inode = new_inode(pfmfs_mnt->mnt_sb);
- if (!inode) goto out;
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
DPRINT(("new inode ino=%ld @%p\n", inode->i_ino, inode));
this.len = strlen(name);
this.hash = inode->i_ino;
- ret = -ENOMEM;
-
/*
* allocate a new dcache entry
*/
- file->f_path.dentry = d_alloc(pfmfs_mnt->mnt_sb->s_root, &this);
- if (!file->f_path.dentry) goto out;
+ dentry = d_alloc(pfmfs_mnt->mnt_sb->s_root, &this);
+ if (!dentry) {
+ iput(inode);
+ return ERR_PTR(-ENOMEM);
+ }
- file->f_path.dentry->d_op = &pfmfs_dentry_operations;
+ dentry->d_op = &pfmfs_dentry_operations;
+ d_add(dentry, inode);
- d_add(file->f_path.dentry, inode);
- file->f_path.mnt = mntget(pfmfs_mnt);
- file->f_mapping = inode->i_mapping;
+ file = alloc_file(pfmfs_mnt, dentry, FMODE_READ, &pfm_file_ops);
+ if (!file) {
+ dput(dentry);
+ return ERR_PTR(-ENFILE);
+ }
- file->f_op = &pfm_file_ops;
- file->f_mode = FMODE_READ;
file->f_flags = O_RDONLY;
- file->f_pos = 0;
-
- /*
- * may have to delay until context is attached?
- */
- fd_install(fd, file);
-
- /*
- * the file structure we will use
- */
- *cfile = file;
-
- return fd;
-out:
- if (file) put_filp(file);
- put_unused_fd(fd);
- return ret;
-}
-
-static void
-pfm_free_fd(int fd, struct file *file)
-{
- struct files_struct *files = current->files;
- struct fdtable *fdt;
+ file->private_data = ctx;
- /*
- * there ie no fd_uninstall(), so we do it here
- */
- spin_lock(&files->file_lock);
- fdt = files_fdtable(files);
- rcu_assign_pointer(fdt->fd[fd], NULL);
- spin_unlock(&files->file_lock);
-
- if (file)
- put_filp(file);
- put_unused_fd(fd);
+ return file;
}
static int
/* link buffer format and context */
ctx->ctx_buf_fmt = fmt;
+ ctx->ctx_fl_is_sampling = 1; /* assume record() is defined */
/*
* check if buffer format wants to use perfmon buffer allocation/mapping service
{
pfarg_context_t *req = (pfarg_context_t *)arg;
struct file *filp;
+ struct path path;
int ctx_flags;
+ int fd;
int ret;
/* let's check the arguments first */
ret = pfarg_is_sane(current, req);
- if (ret < 0) return ret;
+ if (ret < 0)
+ return ret;
ctx_flags = req->ctx_flags;
ret = -ENOMEM;
- ctx = pfm_context_alloc();
- if (!ctx) goto error;
+ fd = get_unused_fd();
+ if (fd < 0)
+ return fd;
- ret = pfm_alloc_fd(&filp);
- if (ret < 0) goto error_file;
+ ctx = pfm_context_alloc(ctx_flags);
+ if (!ctx)
+ goto error;
- req->ctx_fd = ctx->ctx_fd = ret;
+ filp = pfm_alloc_file(ctx);
+ if (IS_ERR(filp)) {
+ ret = PTR_ERR(filp);
+ goto error_file;
+ }
- /*
- * attach context to file
- */
- filp->private_data = ctx;
+ req->ctx_fd = ctx->ctx_fd = fd;
/*
* does the user want to sample?
*/
if (pfm_uuid_cmp(req->ctx_smpl_buf_id, pfm_null_uuid)) {
ret = pfm_setup_buffer_fmt(current, filp, ctx, ctx_flags, 0, req);
- if (ret) goto buffer_error;
+ if (ret)
+ goto buffer_error;
}
- /*
- * init context protection lock
- */
- spin_lock_init(&ctx->ctx_lock);
-
- /*
- * context is unloaded
- */
- ctx->ctx_state = PFM_CTX_UNLOADED;
-
- /*
- * initialization of context's flags
- */
- ctx->ctx_fl_block = (ctx_flags & PFM_FL_NOTIFY_BLOCK) ? 1 : 0;
- ctx->ctx_fl_system = (ctx_flags & PFM_FL_SYSTEM_WIDE) ? 1: 0;
- ctx->ctx_fl_is_sampling = ctx->ctx_buf_fmt ? 1 : 0; /* assume record() is defined */
- ctx->ctx_fl_no_msg = (ctx_flags & PFM_FL_OVFL_NO_MSG) ? 1: 0;
- /*
- * will move to set properties
- * ctx->ctx_fl_excl_idle = (ctx_flags & PFM_FL_EXCL_IDLE) ? 1: 0;
- */
-
- /*
- * init restart semaphore to locked
- */
- init_completion(&ctx->ctx_restart_done);
-
- /*
- * activation is used in SMP only
- */
- ctx->ctx_last_activation = PFM_INVALID_ACTIVATION;
- SET_LAST_CPU(ctx, -1);
-
- /*
- * initialize notification message queue
- */
- ctx->ctx_msgq_head = ctx->ctx_msgq_tail = 0;
- init_waitqueue_head(&ctx->ctx_msgq_wait);
- init_waitqueue_head(&ctx->ctx_zombieq);
-
DPRINT(("ctx=%p flags=0x%x system=%d notify_block=%d excl_idle=%d no_msg=%d ctx_fd=%d \n",
ctx,
ctx_flags,
*/
pfm_reset_pmu_state(ctx);
+ fd_install(fd, filp);
+
return 0;
buffer_error:
- pfm_free_fd(ctx->ctx_fd, filp);
+ path = filp->f_path;
+ put_filp(filp);
+ path_put(&path);
if (ctx->ctx_buf_fmt) {
pfm_buf_fmt_exit(ctx->ctx_buf_fmt, current, NULL, regs);
pfm_context_free(ctx);
error:
+ put_unused_fd(fd);
return ret;
}
if (!user_mode(&scr->pt))
return;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ if (current_thread_info()->status & TS_RESTORE_SIGMASK)
oldset = ¤t->saved_sigmask;
else
oldset = ¤t->blocked;
* continue to iterate in this loop so we can deliver the SIGSEGV...
*/
if (handle_signal(signr, &ka, &info, oldset, scr)) {
- /* a signal was successfully delivered; the saved
+ /*
+ * A signal was successfully delivered; the saved
* sigmask will have been stored in the signal frame,
* and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
return;
}
}
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
+ if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
}
}
spin_unlock_irq(&call_lock);
}
+static inline void
+handle_call_data(void)
+{
+ struct call_data_struct *data;
+ void (*func)(void *info);
+ void *info;
+ int wait;
+
+ /* release the 'pointer lock' */
+ data = (struct call_data_struct *)call_data;
+ func = data->func;
+ info = data->info;
+ wait = data->wait;
+
+ mb();
+ atomic_inc(&data->started);
+ /* At this point the structure may be gone unless wait is true. */
+ (*func)(info);
+
+ /* Notify the sending CPU that the task is done. */
+ mb();
+ if (wait)
+ atomic_inc(&data->finished);
+}
+
static void
-stop_this_cpu (void)
+stop_this_cpu(void)
{
/*
* Remove this CPU:
ops &= ~(1 << which);
switch (which) {
- case IPI_CALL_FUNC:
- {
- struct call_data_struct *data;
- void (*func)(void *info);
- void *info;
- int wait;
-
- /* release the 'pointer lock' */
- data = (struct call_data_struct *) call_data;
- func = data->func;
- info = data->info;
- wait = data->wait;
-
- mb();
- atomic_inc(&data->started);
- /*
- * At this point the structure may be gone unless
- * wait is true.
- */
- (*func)(info);
-
- /* Notify the sending CPU that the task is done. */
- mb();
- if (wait)
- atomic_inc(&data->finished);
- }
- break;
-
- case IPI_CPU_STOP:
+ case IPI_CALL_FUNC:
+ handle_call_data();
+ break;
+
+ case IPI_CPU_STOP:
stop_this_cpu();
break;
#ifdef CONFIG_KEXEC
- case IPI_KDUMP_CPU_STOP:
+ case IPI_KDUMP_CPU_STOP:
unw_init_running(kdump_cpu_freeze, NULL);
break;
#endif
- default:
- printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n", this_cpu, which);
+ default:
+ printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n",
+ this_cpu, which);
break;
}
} while (ops);
.name = "timer"
};
-void __devinit ia64_disable_timer(void)
-{
- ia64_set_itv(1 << 16);
-}
-
void __init
time_init (void)
{
}
EXPORT_SYMBOL_GPL(arch_fix_phys_package_id);
-int arch_register_cpu(int num)
+
+#ifdef CONFIG_HOTPLUG_CPU
+int __ref arch_register_cpu(int num)
{
-#if defined (CONFIG_ACPI) && defined (CONFIG_HOTPLUG_CPU)
+#ifdef CONFIG_ACPI
/*
* If CPEI can be re-targetted or if this is not
* CPEI target, then it is hotpluggable
sysfs_cpus[num].cpu.hotpluggable = 1;
map_cpu_to_node(num, node_cpuid[num].nid);
#endif
-
return register_cpu(&sysfs_cpus[num].cpu, num);
}
-
-#ifdef CONFIG_HOTPLUG_CPU
+EXPORT_SYMBOL(arch_register_cpu);
void arch_unregister_cpu(int num)
{
unregister_cpu(&sysfs_cpus[num].cpu);
unmap_cpu_from_node(num, cpu_to_node(num));
}
-EXPORT_SYMBOL(arch_register_cpu);
EXPORT_SYMBOL(arch_unregister_cpu);
+#else
+static int __init arch_register_cpu(int num)
+{
+ return register_cpu(&sysfs_cpus[num].cpu, num);
+}
#endif /*CONFIG_HOTPLUG_CPU*/
# architecture-specific flags and dependencies.
#
+KBUILD_DEFCONFIG := m32700ut.smp_defconfig
+
LDFLAGS :=
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
LDFLAGS_vmlinux :=
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23-rc1
-# Wed Aug 1 17:22:35 2007
-#
-CONFIG_M32R=y
-CONFIG_GENERIC_ISA_DMA=y
-CONFIG_ZONE_DMA=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_NO_IOPORT=y
-CONFIG_NO_DMA=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_LOCK_KERNEL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_POSIX_MQUEUE is not set
-CONFIG_BSD_PROCESS_ACCT=y
-# CONFIG_BSD_PROCESS_ACCT_V3 is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_AUDIT is not set
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=15
-# CONFIG_CPUSETS is not set
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-CONFIG_SYSCTL_SYSCALL=y
-# CONFIG_KALLSYMS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-# CONFIG_FUTEX is not set
-CONFIG_ANON_INODES=y
-# CONFIG_EPOLL is not set
-CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-CONFIG_STOP_MACHINE=y
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_AS is not set
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_DEFAULT_AS is not set
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-
-#
-# Processor type and features
-#
-# CONFIG_PLAT_MAPPI is not set
-# CONFIG_PLAT_USRV is not set
-CONFIG_PLAT_M32700UT=y
-# CONFIG_PLAT_OPSPUT is not set
-# CONFIG_PLAT_OAKS32R is not set
-# CONFIG_PLAT_MAPPI2 is not set
-# CONFIG_PLAT_MAPPI3 is not set
-# CONFIG_PLAT_M32104UT is not set
-CONFIG_CHIP_M32700=y
-# CONFIG_CHIP_M32102 is not set
-# CONFIG_CHIP_M32104 is not set
-# CONFIG_CHIP_VDEC2 is not set
-# CONFIG_CHIP_OPSP is not set
-CONFIG_MMU=y
-CONFIG_TLB_ENTRIES=32
-CONFIG_ISA_M32R2=y
-CONFIG_ISA_DSP_LEVEL2=y
-CONFIG_ISA_DUAL_ISSUE=y
-CONFIG_BUS_CLOCK=50000000
-CONFIG_TIMER_DIVIDE=128
-# CONFIG_CPU_LITTLE_ENDIAN is not set
-CONFIG_MEMORY_START=0x08000000
-CONFIG_MEMORY_SIZE=0x01000000
-CONFIG_NOHIGHMEM=y
-CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
-CONFIG_SELECT_MEMORY_MODEL=y
-# CONFIG_FLATMEM_MANUAL is not set
-CONFIG_DISCONTIGMEM_MANUAL=y
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_DISCONTIGMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-CONFIG_NEED_MULTIPLE_NODES=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=1
-CONFIG_BOUNCE=y
-CONFIG_VIRT_TO_BUS=y
-CONFIG_IRAM_START=0x00f00000
-CONFIG_IRAM_SIZE=0x00080000
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-CONFIG_PREEMPT=y
-CONFIG_SMP=y
-# CONFIG_CHIP_M32700_TS1 is not set
-CONFIG_NR_CPUS=2
-CONFIG_NODES_SHIFT=1
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_ISA is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-
-#
-# Wireless
-#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_MAC80211 is not set
-# CONFIG_IEEE80211 is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-CONFIG_MTD=y
-# CONFIG_MTD_DEBUG is not set
-# CONFIG_MTD_CONCAT is not set
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
-# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
-# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
-
-#
-# User Modules And Translation Layers
-#
-# CONFIG_MTD_CHAR is not set
-CONFIG_MTD_BLKDEVS=y
-CONFIG_MTD_BLOCK=y
-# CONFIG_FTL is not set
-# CONFIG_NFTL is not set
-# CONFIG_INFTL is not set
-# CONFIG_RFD_FTL is not set
-# CONFIG_SSFDC is not set
-
-#
-# RAM/ROM/Flash chip drivers
-#
-CONFIG_MTD_CFI=m
-CONFIG_MTD_JEDECPROBE=m
-CONFIG_MTD_GEN_PROBE=m
-CONFIG_MTD_CFI_ADV_OPTIONS=y
-# CONFIG_MTD_CFI_NOSWAP is not set
-CONFIG_MTD_CFI_BE_BYTE_SWAP=y
-# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
-CONFIG_MTD_CFI_GEOMETRY=y
-CONFIG_MTD_MAP_BANK_WIDTH_1=y
-CONFIG_MTD_MAP_BANK_WIDTH_2=y
-CONFIG_MTD_MAP_BANK_WIDTH_4=y
-# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
-CONFIG_MTD_CFI_I1=y
-# CONFIG_MTD_CFI_I2 is not set
-# CONFIG_MTD_CFI_I4 is not set
-# CONFIG_MTD_CFI_I8 is not set
-# CONFIG_MTD_OTP is not set
-# CONFIG_MTD_CFI_INTELEXT is not set
-CONFIG_MTD_CFI_AMDSTD=m
-# CONFIG_MTD_CFI_STAA is not set
-CONFIG_MTD_CFI_UTIL=m
-# CONFIG_MTD_RAM is not set
-# CONFIG_MTD_ROM is not set
-# CONFIG_MTD_ABSENT is not set
-
-#
-# Mapping drivers for chip access
-#
-# CONFIG_MTD_COMPLEX_MAPPINGS is not set
-# CONFIG_MTD_PHYSMAP is not set
-# CONFIG_MTD_PLATRAM is not set
-
-#
-# Self-contained MTD device drivers
-#
-# CONFIG_MTD_SLRAM is not set
-# CONFIG_MTD_PHRAM is not set
-# CONFIG_MTD_MTDRAM is not set
-# CONFIG_MTD_BLOCK2MTD is not set
-
-#
-# Disk-On-Chip Device Drivers
-#
-# CONFIG_MTD_DOC2000 is not set
-# CONFIG_MTD_DOC2001 is not set
-# CONFIG_MTD_DOC2001PLUS is not set
-# CONFIG_MTD_NAND is not set
-# CONFIG_MTD_ONENAND is not set
-
-#
-# UBI - Unsorted block images
-#
-# CONFIG_MTD_UBI is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-CONFIG_BLK_DEV_NBD=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-CONFIG_ATA_OVER_ETH=m
-CONFIG_MISC_DEVICES=y
-# CONFIG_EEPROM_93CX6 is not set
-CONFIG_IDE=y
-CONFIG_IDE_MAX_HWIFS=4
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-# CONFIG_IDEDISK_MULTI_MODE is not set
-CONFIG_BLK_DEV_IDECD=m
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-# CONFIG_BLK_DEV_IDESCSI is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-CONFIG_IDE_PROC_FS=y
-
-#
-# IDE chipset support/bugfixes
-#
-CONFIG_IDE_GENERIC=y
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-# CONFIG_IDE_ARM is not set
-# CONFIG_BLK_DEV_IDEDMA is not set
-# CONFIG_BLK_DEV_HD is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=m
-# CONFIG_SCSI_DMA is not set
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=m
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-CONFIG_BLK_DEV_SR=m
-# CONFIG_BLK_DEV_SR_VENDOR is not set
-CONFIG_CHR_DEV_SG=m
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-CONFIG_SCSI_WAIT_SCAN=m
-
-#
-# SCSI Transports
-#
-# CONFIG_SCSI_SPI_ATTRS is not set
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_MD is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_MACVLAN is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-# CONFIG_PHYLIB is not set
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-CONFIG_SMC91X=y
-# CONFIG_NE2000 is not set
-CONFIG_NETDEV_1000=y
-CONFIG_NETDEV_10000=y
-
-#
-# Wireless LAN
-#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-# CONFIG_WAN is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_LIBPS2 is not set
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_SERIAL_M32R_SIO=y
-CONFIG_SERIAL_M32R_SIO_CONSOLE=y
-CONFIG_SERIAL_M32R_PLDSIO=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_RTC is not set
-CONFIG_DS1302=y
-# CONFIG_R3964 is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
-# CONFIG_SENSORS_ABITUGURU3 is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_SMSC47B397 is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_W83627HF is not set
-# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-CONFIG_VIDEO_DEV=m
-CONFIG_VIDEO_V4L1=y
-CONFIG_VIDEO_V4L1_COMPAT=y
-CONFIG_VIDEO_V4L2=y
-CONFIG_VIDEO_CAPTURE_DRIVERS=y
-# CONFIG_VIDEO_ADV_DEBUG is not set
-CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
-# CONFIG_VIDEO_CPIA is not set
-CONFIG_VIDEO_M32R_AR=m
-CONFIG_VIDEO_M32R_AR_M64278=m
-CONFIG_RADIO_ADAPTERS=y
-# CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
-
-#
-# Graphics support
-#
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
-CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-# CONFIG_FB_DDC is not set
-CONFIG_FB_CFB_FILLRECT=y
-CONFIG_FB_CFB_COPYAREA=y
-CONFIG_FB_CFB_IMAGEBLIT=y
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-# CONFIG_FB_MODE_HELPERS is not set
-# CONFIG_FB_TILEBLITTING is not set
-
-#
-# Frame buffer hardware drivers
-#
-CONFIG_FB_S1D13XXX=y
-# CONFIG_FB_VIRTUAL is not set
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-# CONFIG_FONTS is not set
-CONFIG_FONT_8x8=y
-CONFIG_FONT_8x16=y
-CONFIG_LOGO=y
-CONFIG_LOGO_LINUX_MONO=y
-CONFIG_LOGO_LINUX_VGA16=y
-CONFIG_LOGO_LINUX_CLUT224=y
-CONFIG_LOGO_M32R_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-CONFIG_HID_SUPPORT=y
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-CONFIG_USB_SUPPORT=y
-# CONFIG_USB_ARCH_HAS_HCD is not set
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-# CONFIG_USB_ARCH_HAS_EHCI is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-CONFIG_MMC=y
-CONFIG_MMC_DEBUG=y
-# CONFIG_MMC_UNSAFE_RESUME is not set
-
-#
-# MMC/SD Card Drivers
-#
-CONFIG_MMC_BLOCK=y
-CONFIG_MMC_BLOCK_BOUNCE=y
-
-#
-# MMC/SD Host Controller Drivers
-#
-# CONFIG_NEW_LEDS is not set
-
-#
-# Real Time Clock
-#
-# CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-CONFIG_JBD_DEBUG=y
-CONFIG_FS_MBCACHE=y
-CONFIG_REISERFS_FS=m
-# CONFIG_REISERFS_CHECK is not set
-# CONFIG_REISERFS_PROC_INFO is not set
-# CONFIG_REISERFS_FS_XATTR is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-# CONFIG_ZISOFS is not set
-CONFIG_UDF_FS=m
-CONFIG_UDF_NLS=y
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=m
-CONFIG_MSDOS_FS=m
-CONFIG_VFAT_FS=m
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_JFFS2_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_BIND34 is not set
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ASCII is not set
-# CONFIG_NLS_ISO8859_1 is not set
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Distributed Lock Manager
-#
-# CONFIG_DLM is not set
-
-#
-# Profiling support
-#
-CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_HEADERS_CHECK is not set
-# CONFIG_DEBUG_KERNEL is not set
-# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_FRAME_POINTER is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_HAS_IOMEM=y
. = ALIGN(4096);
__nosave_end = .;
- . = ALIGN(4096);
- .data.page_aligned : { *(.data.idt) }
-
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
struct list_head list;
struct request *req;
struct virtio_blk_outhdr out_hdr;
- struct virtio_blk_inhdr in_hdr;
+ u8 status;
};
static void blk_done(struct virtqueue *vq)
spin_lock_irqsave(&vblk->lock, flags);
while ((vbr = vblk->vq->vq_ops->get_buf(vblk->vq, &len)) != NULL) {
int uptodate;
- switch (vbr->in_hdr.status) {
+ switch (vbr->status) {
case VIRTIO_BLK_S_OK:
uptodate = 1;
break;
sg_init_table(vblk->sg, VIRTIO_MAX_SG);
sg_set_buf(&vblk->sg[0], &vbr->out_hdr, sizeof(vbr->out_hdr));
num = blk_rq_map_sg(q, vbr->req, vblk->sg+1);
- sg_set_buf(&vblk->sg[num+1], &vbr->in_hdr, sizeof(vbr->in_hdr));
+ sg_set_buf(&vblk->sg[num+1], &vbr->status, sizeof(vbr->status));
if (rq_data_dir(vbr->req) == WRITE) {
vbr->out_hdr.type |= VIRTIO_BLK_T_OUT;
/* We provide getgeo only to please some old bootloader/partitioning tools */
static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
{
- /* some standard values, similar to sd */
- geo->heads = 1 << 6;
- geo->sectors = 1 << 5;
- geo->cylinders = get_capacity(bd->bd_disk) >> 11;
+ struct virtio_blk *vblk = bd->bd_disk->private_data;
+ struct virtio_blk_geometry vgeo;
+ int err;
+
+ /* see if the host passed in geometry config */
+ err = virtio_config_val(vblk->vdev, VIRTIO_BLK_F_GEOMETRY,
+ offsetof(struct virtio_blk_config, geometry),
+ &vgeo);
+
+ if (!err) {
+ geo->heads = vgeo.heads;
+ geo->sectors = vgeo.sectors;
+ geo->cylinders = vgeo.cylinders;
+ } else {
+ /* some standard values, similar to sd */
+ geo->heads = 1 << 6;
+ geo->sectors = 1 << 5;
+ geo->cylinders = get_capacity(bd->bd_disk) >> 11;
+ }
return 0;
}
index++;
/* If barriers are supported, tell block layer that queue is ordered */
- if (vdev->config->feature(vdev, VIRTIO_BLK_F_BARRIER))
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
/* Host must always specify the capacity. */
- __virtio_config_val(vdev, offsetof(struct virtio_blk_config, capacity),
- &cap);
+ vdev->config->get(vdev, offsetof(struct virtio_blk_config, capacity),
+ &cap, sizeof(cap));
/* If capacity is too big, truncate with warning. */
if ((sector_t)cap != cap) {
static void virtblk_remove(struct virtio_device *vdev)
{
struct virtio_blk *vblk = vdev->priv;
- int major = vblk->disk->major;
/* Nothing should be pending. */
BUG_ON(!list_empty(&vblk->reqs));
blk_cleanup_queue(vblk->disk->queue);
put_disk(vblk->disk);
- unregister_blkdev(major, "virtblk");
mempool_destroy(vblk->pool);
vdev->config->del_vq(vblk->vq);
kfree(vblk);
{ 0 },
};
+static unsigned int features[] = {
+ VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX,
+ VIRTIO_BLK_F_GEOMETRY,
+};
+
static struct virtio_driver virtio_blk = {
+ .feature_table = features,
+ .feature_table_size = ARRAY_SIZE(features),
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.id_table = id_table,
+ desc->config_len;
}
-/* This tests (and acknowleges) a feature bit. */
-static bool lg_feature(struct virtio_device *vdev, unsigned fbit)
+/* This gets the device's feature bits. */
+static u32 lg_get_features(struct virtio_device *vdev)
{
+ unsigned int i;
+ u32 features = 0;
struct lguest_device_desc *desc = to_lgdev(vdev)->desc;
- u8 *features;
-
- /* Obviously if they ask for a feature off the end of our feature
- * bitmap, it's not set. */
- if (fbit / 8 > desc->feature_len)
- return false;
-
- /* The feature bitmap comes after the virtqueues. */
- features = lg_features(desc);
- if (!(features[fbit / 8] & (1 << (fbit % 8))))
- return false;
-
- /* We set the matching bit in the other half of the bitmap to tell the
- * Host we want to use this feature. We don't use this yet, but we
- * could in future. */
- features[desc->feature_len + fbit / 8] |= (1 << (fbit % 8));
- return true;
+ u8 *in_features = lg_features(desc);
+
+ /* We do this the slow but generic way. */
+ for (i = 0; i < min(desc->feature_len * 8, 32); i++)
+ if (in_features[i / 8] & (1 << (i % 8)))
+ features |= (1 << i);
+
+ return features;
+}
+
+static void lg_set_features(struct virtio_device *vdev, u32 features)
+{
+ unsigned int i;
+ struct lguest_device_desc *desc = to_lgdev(vdev)->desc;
+ /* Second half of bitmap is features we accept. */
+ u8 *out_features = lg_features(desc) + desc->feature_len;
+
+ memset(out_features, 0, desc->feature_len);
+ for (i = 0; i < min(desc->feature_len * 8, 32); i++) {
+ if (features & (1 << i))
+ out_features[i / 8] |= (1 << (i % 8));
+ }
}
/* Once they've found a field, getting a copy of it is easy. */
return to_lgdev(vdev)->desc->status;
}
+/* To notify on status updates, we (ab)use the NOTIFY hypercall, with the
+ * descriptor address of the device. A zero status means "reset". */
+static void set_status(struct virtio_device *vdev, u8 status)
+{
+ unsigned long offset = (void *)to_lgdev(vdev)->desc - lguest_devices;
+
+ /* We set the status. */
+ to_lgdev(vdev)->desc->status = status;
+ hcall(LHCALL_NOTIFY, (max_pfn<<PAGE_SHIFT) + offset, 0, 0);
+}
+
static void lg_set_status(struct virtio_device *vdev, u8 status)
{
BUG_ON(!status);
- to_lgdev(vdev)->desc->status = status;
+ set_status(vdev, status);
}
-/* To reset the device, we (ab)use the NOTIFY hypercall, with the descriptor
- * address of the device. The Host will zero the status and all the
- * features. */
static void lg_reset(struct virtio_device *vdev)
{
- unsigned long offset = (void *)to_lgdev(vdev)->desc - lguest_devices;
-
- hcall(LHCALL_NOTIFY, (max_pfn<<PAGE_SHIFT) + offset, 0, 0);
+ set_status(vdev, 0);
}
/*
/* The ops structure which hooks everything together. */
static struct virtio_config_ops lguest_config_ops = {
- .feature = lg_feature,
+ .get_features = lg_get_features,
+ .set_features = lg_set_features,
.get = lg_get,
.set = lg_set,
.get_status = lg_get_status,
static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
{
/* We have a limited number the number of CPUs in the lguest struct. */
- if (id >= NR_CPUS)
+ if (id >= ARRAY_SIZE(cpu->lg->cpus))
return -EINVAL;
/* Set up this CPU's id, and pointer back to the lguest struct. */
if (!lg || (cpu_id >= lg->nr_cpus))
return -EINVAL;
cpu = &lg->cpus[cpu_id];
- if (!cpu)
- return -EINVAL;
/* Once the Guest is dead, you can only read() why it died. */
if (lg->dead)
struct net_device *dev;
struct napi_struct napi;
+ /* The skb we couldn't send because buffers were full. */
+ struct sk_buff *last_xmit_skb;
+
/* Number of input buffers, and max we've ever had. */
unsigned int num, max;
static void try_fill_recv(struct virtnet_info *vi)
{
struct sk_buff *skb;
- struct scatterlist sg[1+MAX_SKB_FRAGS];
+ struct scatterlist sg[2+MAX_SKB_FRAGS];
int num, err;
- sg_init_table(sg, 1+MAX_SKB_FRAGS);
+ sg_init_table(sg, 2+MAX_SKB_FRAGS);
for (;;) {
skb = netdev_alloc_skb(vi->dev, MAX_PACKET_LEN);
if (unlikely(!skb))
while ((skb = vi->svq->vq_ops->get_buf(vi->svq, &len)) != NULL) {
pr_debug("Sent skb %p\n", skb);
__skb_unlink(skb, &vi->send);
- vi->dev->stats.tx_bytes += len;
+ vi->dev->stats.tx_bytes += skb->len;
vi->dev->stats.tx_packets++;
kfree_skb(skb);
}
}
-static int start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int xmit_skb(struct virtnet_info *vi, struct sk_buff *skb)
{
- struct virtnet_info *vi = netdev_priv(dev);
- int num, err;
- struct scatterlist sg[1+MAX_SKB_FRAGS];
+ int num;
+ struct scatterlist sg[2+MAX_SKB_FRAGS];
struct virtio_net_hdr *hdr;
const unsigned char *dest = ((struct ethhdr *)skb->data)->h_dest;
- sg_init_table(sg, 1+MAX_SKB_FRAGS);
+ sg_init_table(sg, 2+MAX_SKB_FRAGS);
- pr_debug("%s: xmit %p " MAC_FMT "\n", dev->name, skb,
+ pr_debug("%s: xmit %p " MAC_FMT "\n", vi->dev->name, skb,
dest[0], dest[1], dest[2],
dest[3], dest[4], dest[5]);
vnet_hdr_to_sg(sg, skb);
num = skb_to_sgvec(skb, sg+1, 0, skb->len) + 1;
- __skb_queue_head(&vi->send, skb);
+
+ return vi->svq->vq_ops->add_buf(vi->svq, sg, num, 0, skb);
+}
+
+static int start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
again:
/* Free up any pending old buffers before queueing new ones. */
free_old_xmit_skbs(vi);
- err = vi->svq->vq_ops->add_buf(vi->svq, sg, num, 0, skb);
- if (err) {
- pr_debug("%s: virtio not prepared to send\n", dev->name);
- netif_stop_queue(dev);
-
- /* Activate callback for using skbs: if this returns false it
- * means some were used in the meantime. */
- if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
- vi->svq->vq_ops->disable_cb(vi->svq);
- netif_start_queue(dev);
- goto again;
+
+ /* If we has a buffer left over from last time, send it now. */
+ if (vi->last_xmit_skb) {
+ if (xmit_skb(vi, vi->last_xmit_skb) != 0) {
+ /* Drop this skb: we only queue one. */
+ vi->dev->stats.tx_dropped++;
+ kfree_skb(skb);
+ goto stop_queue;
}
- __skb_unlink(skb, &vi->send);
+ vi->last_xmit_skb = NULL;
+ }
- return NETDEV_TX_BUSY;
+ /* Put new one in send queue and do transmit */
+ __skb_queue_head(&vi->send, skb);
+ if (xmit_skb(vi, skb) != 0) {
+ vi->last_xmit_skb = skb;
+ goto stop_queue;
}
+done:
vi->svq->vq_ops->kick(vi->svq);
-
- return 0;
+ return NETDEV_TX_OK;
+
+stop_queue:
+ pr_debug("%s: virtio not prepared to send\n", dev->name);
+ netif_stop_queue(dev);
+
+ /* Activate callback for using skbs: if this returns false it
+ * means some were used in the meantime. */
+ if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
+ vi->svq->vq_ops->disable_cb(vi->svq);
+ netif_start_queue(dev);
+ goto again;
+ }
+ goto done;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
SET_NETDEV_DEV(dev, &vdev->dev);
/* Do we support "hardware" checksums? */
- if (csum && vdev->config->feature(vdev, VIRTIO_NET_F_CSUM)) {
+ if (csum && virtio_has_feature(vdev, VIRTIO_NET_F_CSUM)) {
/* This opens up the world of extra features. */
dev->features |= NETIF_F_HW_CSUM|NETIF_F_SG|NETIF_F_FRAGLIST;
- if (gso && vdev->config->feature(vdev, VIRTIO_NET_F_GSO)) {
+ if (gso && virtio_has_feature(vdev, VIRTIO_NET_F_GSO)) {
dev->features |= NETIF_F_TSO | NETIF_F_UFO
| NETIF_F_TSO_ECN | NETIF_F_TSO6;
}
+ /* Individual feature bits: what can host handle? */
+ if (gso && virtio_has_feature(vdev, VIRTIO_NET_F_HOST_TSO4))
+ dev->features |= NETIF_F_TSO;
+ if (gso && virtio_has_feature(vdev, VIRTIO_NET_F_HOST_TSO6))
+ dev->features |= NETIF_F_TSO6;
+ if (gso && virtio_has_feature(vdev, VIRTIO_NET_F_HOST_ECN))
+ dev->features |= NETIF_F_TSO_ECN;
+ if (gso && virtio_has_feature(vdev, VIRTIO_NET_F_HOST_UFO))
+ dev->features |= NETIF_F_UFO;
}
/* Configuration may specify what MAC to use. Otherwise random. */
- if (vdev->config->feature(vdev, VIRTIO_NET_F_MAC)) {
+ if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC)) {
vdev->config->get(vdev,
offsetof(struct virtio_net_config, mac),
dev->dev_addr, dev->addr_len);
{ 0 },
};
+static unsigned int features[] = {
+ VIRTIO_NET_F_CSUM, VIRTIO_NET_F_GSO, VIRTIO_NET_F_MAC,
+ VIRTIO_NET_F_HOST_TSO4, VIRTIO_NET_F_HOST_UFO, VIRTIO_NET_F_HOST_TSO6,
+ VIRTIO_NET_F_HOST_ECN,
+};
+
static struct virtio_driver virtio_net = {
+ .feature_table = features,
+ .feature_table_size = ARRAY_SIZE(features),
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.id_table = id_table,
dev->config->set_status(dev, dev->config->get_status(dev) | status);
}
+void virtio_check_driver_offered_feature(const struct virtio_device *vdev,
+ unsigned int fbit)
+{
+ unsigned int i;
+ struct virtio_driver *drv = container_of(vdev->dev.driver,
+ struct virtio_driver, driver);
+
+ for (i = 0; i < drv->feature_table_size; i++)
+ if (drv->feature_table[i] == fbit)
+ return;
+ BUG();
+}
+EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature);
+
static int virtio_dev_probe(struct device *_d)
{
- int err;
+ int err, i;
struct virtio_device *dev = container_of(_d,struct virtio_device,dev);
struct virtio_driver *drv = container_of(dev->dev.driver,
struct virtio_driver, driver);
+ u32 device_features;
+ /* We have a driver! */
add_status(dev, VIRTIO_CONFIG_S_DRIVER);
+
+ /* Figure out what features the device supports. */
+ device_features = dev->config->get_features(dev);
+
+ /* Features supported by both device and driver into dev->features. */
+ memset(dev->features, 0, sizeof(dev->features));
+ for (i = 0; i < drv->feature_table_size; i++) {
+ unsigned int f = drv->feature_table[i];
+ BUG_ON(f >= 32);
+ if (device_features & (1 << f))
+ set_bit(f, dev->features);
+ }
+
err = drv->probe(dev);
if (err)
add_status(dev, VIRTIO_CONFIG_S_FAILED);
- else
+ else {
add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK);
+ /* They should never have set feature bits beyond 32 */
+ dev->config->set_features(dev, dev->features[0]);
+ }
return err;
}
int register_virtio_driver(struct virtio_driver *driver)
{
+ /* Catch this early. */
+ BUG_ON(driver->feature_table_size && !driver->feature_table);
driver->driver.bus = &virtio_bus;
driver->driver.probe = virtio_dev_probe;
driver->driver.remove = virtio_dev_remove;
static inline s64 towards_target(struct virtio_balloon *vb)
{
u32 v;
- __virtio_config_val(vb->vdev,
- offsetof(struct virtio_balloon_config, num_pages),
- &v);
+ vb->vdev->config->get(vb->vdev,
+ offsetof(struct virtio_balloon_config, num_pages),
+ &v, sizeof(v));
return v - vb->num_pages;
}
}
vb->tell_host_first
- = vdev->config->feature(vdev, VIRTIO_BALLOON_F_MUST_TELL_HOST);
+ = virtio_has_feature(vdev, VIRTIO_BALLOON_F_MUST_TELL_HOST);
return 0;
kfree(vb);
}
+static unsigned int features[] = { VIRTIO_BALLOON_F_MUST_TELL_HOST };
+
static struct virtio_driver virtio_balloon = {
+ .feature_table = features,
+ .feature_table_size = ARRAY_SIZE(features),
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.id_table = id_table,
return container_of(vdev, struct virtio_pci_device, vdev);
}
-/* virtio config->feature() implementation */
-static bool vp_feature(struct virtio_device *vdev, unsigned bit)
+/* virtio config->get_features() implementation */
+static u32 vp_get_features(struct virtio_device *vdev)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+
+ /* When someone needs more than 32 feature bits, we'll need to
+ * steal a bit to indicate that the rest are somewhere else. */
+ return ioread32(vp_dev->ioaddr + VIRTIO_PCI_HOST_FEATURES);
+}
+
+/* virtio config->set_features() implementation */
+static void vp_set_features(struct virtio_device *vdev, u32 features)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
- u32 mask;
-
- /* Since this function is supposed to have the side effect of
- * enabling a queried feature, we simulate that by doing a read
- * from the host feature bitmask and then writing to the guest
- * feature bitmask */
- mask = ioread32(vp_dev->ioaddr + VIRTIO_PCI_HOST_FEATURES);
- if (mask & (1 << bit)) {
- mask |= (1 << bit);
- iowrite32(mask, vp_dev->ioaddr + VIRTIO_PCI_GUEST_FEATURES);
- }
- return !!(mask & (1 << bit));
+ iowrite32(features, vp_dev->ioaddr + VIRTIO_PCI_GUEST_FEATURES);
}
/* virtio config->get() implementation */
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
/* We should never be setting status to 0. */
BUG_ON(status == 0);
- return iowrite8(status, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
+ iowrite8(status, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
}
static void vp_reset(struct virtio_device *vdev)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
/* 0 status means a reset. */
- return iowrite8(0, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
+ iowrite8(0, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
}
/* the notify function used when creating a virt queue */
}
static struct virtio_config_ops virtio_pci_config_ops = {
- .feature = vp_feature,
.get = vp_get,
.set = vp_set,
.get_status = vp_get_status,
.reset = vp_reset,
.find_vq = vp_find_vq,
.del_vq = vp_del_vq,
+ .get_features = vp_get_features,
+ .set_features = vp_set_features,
};
/* the PCI probing function */
START_USE(vq);
+ if (unlikely(vq->broken)) {
+ END_USE(vq);
+ return NULL;
+ }
+
if (!more_used(vq)) {
pr_debug("No more buffers in queue\n");
END_USE(vq);
DECLARE_PER_CPU(int, cpu_state);
-extern int arch_register_cpu(int num);
#ifdef CONFIG_HOTPLUG_CPU
+extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
#endif
#define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */
#define TIF_FREEZE 20 /* is freezing for suspend */
#define TIF_RESTORE_RSE 21 /* user RBS is newer than kernel RBS */
-#define TIF_RESTORE_SIGMASK 22 /* restore signal mask in do_signal() */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
-#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))
#define TS_POLLING 1 /* true if in idle loop and not sleeping */
+#define TS_RESTORE_SIGMASK 2 /* restore signal mask in do_signal() */
#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
+#ifndef __ASSEMBLY__
+#define HAVE_SET_RESTORE_SIGMASK 1
+static inline void set_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ ti->status |= TS_RESTORE_SIGMASK;
+ set_bit(TIF_SIGPENDING, &ti->flags);
+}
+#endif /* !__ASSEMBLY__ */
+
#endif /* _ASM_IA64_THREAD_INFO_H */
unifdef-y += virtio_config.h
unifdef-y += virtio_blk.h
unifdef-y += virtio_net.h
+unifdef-y += virtio_9p.h
+unifdef-y += virtio_balloon.h
+unifdef-y += virtio_console.h
+unifdef-y += virtio_pci.h
+unifdef-y += virtio_ring.h
unifdef-y += vt.h
unifdef-y += wait.h
unifdef-y += wanrouter.h
#define IRQ_WAKEUP 0x00100000 /* IRQ triggers system wakeup */
#define IRQ_MOVE_PENDING 0x00200000 /* need to re-target IRQ destination */
#define IRQ_NO_BALANCING 0x00400000 /* IRQ is excluded from balancing */
+#define IRQ_SPURIOUS_DISABLED 0x00800000 /* IRQ was disabled by the spurious trap */
#ifdef CONFIG_IRQ_PER_CPU
# define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
* @dev: underlying device.
* @id: the device type identification (used to match it with a driver).
* @config: the configuration ops for this device.
+ * @features: the features supported by both driver and device.
* @priv: private pointer for the driver's use.
*/
struct virtio_device
struct device dev;
struct virtio_device_id id;
struct virtio_config_ops *config;
+ /* Note that this is a Linux set_bit-style bitmap. */
+ unsigned long features[1];
void *priv;
};
* virtio_driver - operations for a virtio I/O driver
* @driver: underlying device driver (populate name and owner).
* @id_table: the ids serviced by this driver.
+ * @feature_table: an array of feature numbers supported by this device.
+ * @feature_table_size: number of entries in the feature table array.
* @probe: the function to call when a device is found. Returns a token for
* remove, or PTR_ERR().
* @remove: the function when a device is removed.
struct virtio_driver {
struct device_driver driver;
const struct virtio_device_id *id_table;
+ const unsigned int *feature_table;
+ unsigned int feature_table_size;
int (*probe)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
void (*config_changed)(struct virtio_device *dev);
#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */
#define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */
#define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */
+#define VIRTIO_BLK_F_GEOMETRY 4 /* Legacy geometry available */
struct virtio_blk_config
{
__le32 size_max;
/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
__le32 seg_max;
+ /* geometry the device (if VIRTIO_BLK_F_GEOMETRY) */
+ struct virtio_blk_geometry {
+ __le16 cylinders;
+ __u8 heads;
+ __u8 sectors;
+ } geometry;
} __attribute__((packed));
/* These two define direction. */
__u64 sector;
};
+/* And this is the final byte of the write scatter-gather list. */
#define VIRTIO_BLK_S_OK 0
#define VIRTIO_BLK_S_IOERR 1
#define VIRTIO_BLK_S_UNSUPP 2
-
-/* This is the first element of the write scatter-gather list */
-struct virtio_blk_inhdr
-{
- unsigned char status;
-};
#endif /* _LINUX_VIRTIO_BLK_H */
#define VIRTIO_CONFIG_S_FAILED 0x80
#ifdef __KERNEL__
-struct virtio_device;
+#include <linux/virtio.h>
/**
* virtio_config_ops - operations for configuring a virtio device
- * @feature: search for a feature in this config
- * vdev: the virtio_device
- * bit: the feature bit
- * Returns true if the feature is supported. Acknowledges the feature
- * so the host can see it.
* @get: read the value of a configuration field
* vdev: the virtio_device
* offset: the offset of the configuration field
* buf: the buffer to write the field value into.
* len: the length of the buffer
- * Note that contents are conventionally little-endian.
* @set: write the value of a configuration field
* vdev: the virtio_device
* offset: the offset of the configuration field
* buf: the buffer to read the field value from.
* len: the length of the buffer
- * Note that contents are conventionally little-endian.
* @get_status: read the status byte
* vdev: the virtio_device
* Returns the status byte
* callback: the virqtueue callback
* Returns the new virtqueue or ERR_PTR() (eg. -ENOENT).
* @del_vq: free a virtqueue found by find_vq().
+ * @get_features: get the array of feature bits for this device.
+ * vdev: the virtio_device
+ * Returns the first 32 feature bits (all we currently need).
+ * @set_features: confirm what device features we'll be using.
+ * vdev: the virtio_device
+ * feature: the first 32 feature bits
*/
struct virtio_config_ops
{
- bool (*feature)(struct virtio_device *vdev, unsigned bit);
void (*get)(struct virtio_device *vdev, unsigned offset,
void *buf, unsigned len);
void (*set)(struct virtio_device *vdev, unsigned offset,
unsigned index,
void (*callback)(struct virtqueue *));
void (*del_vq)(struct virtqueue *vq);
+ u32 (*get_features)(struct virtio_device *vdev);
+ void (*set_features)(struct virtio_device *vdev, u32 features);
};
+/* If driver didn't advertise the feature, it will never appear. */
+void virtio_check_driver_offered_feature(const struct virtio_device *vdev,
+ unsigned int fbit);
+
/**
- * virtio_config_val - look for a feature and get a single virtio config.
- * @vdev: the virtio device
+ * virtio_has_feature - helper to determine if this device has this feature.
+ * @vdev: the device
* @fbit: the feature bit
- * @offset: the type to search for.
- * @val: a pointer to the value to fill in.
- *
- * The return value is -ENOENT if the feature doesn't exist. Otherwise
- * the value is endian-corrected and returned in v. */
-#define virtio_config_val(vdev, fbit, offset, v) ({ \
- int _err; \
- if ((vdev)->config->feature((vdev), (fbit))) { \
- __virtio_config_val((vdev), (offset), (v)); \
- _err = 0; \
- } else \
- _err = -ENOENT; \
- _err; \
-})
+ */
+static inline bool virtio_has_feature(const struct virtio_device *vdev,
+ unsigned int fbit)
+{
+ /* Did you forget to fix assumptions on max features? */
+ if (__builtin_constant_p(fbit))
+ BUILD_BUG_ON(fbit >= 32);
+
+ virtio_check_driver_offered_feature(vdev, fbit);
+ return test_bit(fbit, vdev->features);
+}
/**
- * __virtio_config_val - get a single virtio config without feature check.
+ * virtio_config_val - look for a feature and get a virtio config entry.
* @vdev: the virtio device
+ * @fbit: the feature bit
* @offset: the type to search for.
* @val: a pointer to the value to fill in.
*
- * The value is endian-corrected and returned in v. */
-#define __virtio_config_val(vdev, offset, v) do { \
- BUILD_BUG_ON(sizeof(*(v)) != 1 && sizeof(*(v)) != 2 \
- && sizeof(*(v)) != 4 && sizeof(*(v)) != 8); \
- (vdev)->config->get((vdev), (offset), (v), sizeof(*(v))); \
- switch (sizeof(*(v))) { \
- case 2: le16_to_cpus((__u16 *) v); break; \
- case 4: le32_to_cpus((__u32 *) v); break; \
- case 8: le64_to_cpus((__u64 *) v); break; \
- } \
-} while(0)
+ * The return value is -ENOENT if the feature doesn't exist. Otherwise
+ * the config value is copied into whatever is pointed to by v. */
+#define virtio_config_val(vdev, fbit, offset, v) \
+ virtio_config_buf((vdev), (fbit), (offset), (v), sizeof(v))
+
+static inline int virtio_config_buf(struct virtio_device *vdev,
+ unsigned int fbit,
+ unsigned int offset,
+ void *buf, unsigned len)
+{
+ if (!virtio_has_feature(vdev, fbit))
+ return -ENOENT;
+
+ vdev->config->get(vdev, offset, buf, len);
+ return 0;
+}
#endif /* __KERNEL__ */
#endif /* _LINUX_VIRTIO_CONFIG_H */
#define VIRTIO_ID_NET 1
/* The feature bitmap for virtio net */
-#define VIRTIO_NET_F_CSUM 0 /* Can handle pkts w/ partial csum */
+#define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */
+#define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */
#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */
-#define VIRTIO_NET_F_GSO 6 /* Can handle pkts w/ any GSO type */
+#define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */
+#define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */
+#define VIRTIO_NET_F_GUEST_TSO6 8 /* Guest can handle TSOv6 in. */
+#define VIRTIO_NET_F_GUEST_ECN 9 /* Guest can handle TSO[6] w/ ECN in. */
+#define VIRTIO_NET_F_GUEST_UFO 10 /* Guest can handle UFO in. */
+#define VIRTIO_NET_F_HOST_TSO4 11 /* Host can handle TSOv4 in. */
+#define VIRTIO_NET_F_HOST_TSO6 12 /* Host can handle TSOv6 in. */
+#define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */
+#define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */
struct virtio_net_config
{
}
EXPORT_SYMBOL(disable_irq);
+static void __enable_irq(struct irq_desc *desc, unsigned int irq)
+{
+ switch (desc->depth) {
+ case 0:
+ printk(KERN_WARNING "Unbalanced enable for IRQ %d\n", irq);
+ WARN_ON(1);
+ break;
+ case 1: {
+ unsigned int status = desc->status & ~IRQ_DISABLED;
+
+ /* Prevent probing on this irq: */
+ desc->status = status | IRQ_NOPROBE;
+ check_irq_resend(desc, irq);
+ /* fall-through */
+ }
+ default:
+ desc->depth--;
+ }
+}
+
/**
* enable_irq - enable handling of an irq
* @irq: Interrupt to enable
return;
spin_lock_irqsave(&desc->lock, flags);
- switch (desc->depth) {
- case 0:
- printk(KERN_WARNING "Unbalanced enable for IRQ %d\n", irq);
- WARN_ON(1);
- break;
- case 1: {
- unsigned int status = desc->status & ~IRQ_DISABLED;
-
- /* Prevent probing on this irq: */
- desc->status = status | IRQ_NOPROBE;
- check_irq_resend(desc, irq);
- /* fall-through */
- }
- default:
- desc->depth--;
- }
+ __enable_irq(desc, irq);
spin_unlock_irqrestore(&desc->lock, flags);
}
EXPORT_SYMBOL(enable_irq);
compat_irq_chip_set_default_handler(desc);
desc->status &= ~(IRQ_AUTODETECT | IRQ_WAITING |
- IRQ_INPROGRESS);
+ IRQ_INPROGRESS | IRQ_SPURIOUS_DISABLED);
if (!(desc->status & IRQ_NOAUTOEN)) {
desc->depth = 0;
/* Reset broken irq detection when installing new handler */
desc->irq_count = 0;
desc->irqs_unhandled = 0;
+
+ /*
+ * Check whether we disabled the irq via the spurious handler
+ * before. Reenable it and give it another chance.
+ */
+ if (shared && (desc->status & IRQ_SPURIOUS_DISABLED)) {
+ desc->status &= ~IRQ_SPURIOUS_DISABLED;
+ __enable_irq(desc, irq);
+ }
+
spin_unlock_irqrestore(&desc->lock, flags);
new->irq = irq;
* Now kill the IRQ
*/
printk(KERN_EMERG "Disabling IRQ #%d\n", irq);
- desc->status |= IRQ_DISABLED;
- desc->depth = 1;
+ desc->status |= IRQ_DISABLED | IRQ_SPURIOUS_DISABLED;
+ desc->depth++;
desc->chip->disable(irq);
}
desc->irqs_unhandled = 0;
git.openpandora.org / pandora-kernel.git / commitdiff