endif
obj-y := semaphore.o cputable.o ptrace.o syscalls.o \
- irq.o align.o signal_32.o pmc.o vdso.o
+ irq.o align.o signal_32.o pmc.o vdso.o \
+ init_task.o process.o
obj-y += vdso32/
obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
signal_64.o ptrace32.o systbl.o \
extra-$(CONFIG_8xx) := head_8xx.o
extra-y += vmlinux.lds
-obj-y += process.o init_task.o time.o \
- prom.o traps.o setup-common.o udbg.o
+obj-y += time.o prom.o traps.o setup-common.o udbg.o
obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o systbl.o
obj-$(CONFIG_PPC64) += misc_64.o dma_64.o iommu.o
obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
#ifdef CONFIG_PPC_MULTIPLATFORM
static void fixup_resource(struct resource *res, struct pci_dev *dev);
static void do_bus_setup(struct pci_bus *bus);
+static void phbs_remap_io(void);
#endif
/* pci_io_base -- the base address from which io bars are offsets.
kfree(phb);
}
+#ifndef CONFIG_PPC_ISERIES
void __devinit pcibios_claim_one_bus(struct pci_bus *b)
{
struct pci_dev *dev;
EXPORT_SYMBOL_GPL(pcibios_claim_one_bus);
#endif
-#ifndef CONFIG_PPC_ISERIES
static void __init pcibios_claim_of_setup(void)
{
struct pci_bus *b;
}
EXPORT_SYMBOL(remap_bus_range);
-void phbs_remap_io(void)
+static void phbs_remap_io(void)
{
struct pci_controller *hose, *tmp;
}
#endif /* CONFIG_SPE */
+#ifndef CONFIG_SMP
/*
* If we are doing lazy switching of CPU state (FP, altivec or SPE),
* and the current task has some state, discard it.
*/
-static inline void discard_lazy_cpu_state(void)
+void discard_lazy_cpu_state(void)
{
-#ifndef CONFIG_SMP
preempt_disable();
if (last_task_used_math == current)
last_task_used_math = NULL;
last_task_used_spe = NULL;
#endif
preempt_enable();
-#endif /* CONFIG_SMP */
}
+#endif /* CONFIG_SMP */
+#ifdef CONFIG_PPC_MERGE /* XXX for now */
int set_dabr(unsigned long dabr)
{
if (ppc_md.set_dabr)
mtspr(SPRN_DABR, dabr);
return 0;
}
+#endif
#ifdef CONFIG_PPC64
DEFINE_PER_CPU(struct cpu_usage, cpu_usage_array);
static void __init early_reserve_mem(void)
{
- unsigned long base, size;
- unsigned long *reserve_map;
+ u64 base, size;
+ u64 *reserve_map;
- reserve_map = (unsigned long *)(((unsigned long)initial_boot_params) +
+ reserve_map = (u64 *)(((unsigned long)initial_boot_params) +
initial_boot_params->off_mem_rsvmap);
+#ifdef CONFIG_PPC32
+ /*
+ * Handle the case where we might be booting from an old kexec
+ * image that setup the mem_rsvmap as pairs of 32-bit values
+ */
+ if (*reserve_map > 0xffffffffull) {
+ u32 base_32, size_32;
+ u32 *reserve_map_32 = (u32 *)reserve_map;
+
+ while (1) {
+ base_32 = *(reserve_map_32++);
+ size_32 = *(reserve_map_32++);
+ if (size_32 == 0)
+ break;
+ DBG("reserving: %lx -> %lx\n", base_32, size_32);
+ lmb_reserve(base_32, size_32);
+ }
+ return;
+ }
+#endif
while (1) {
base = *(reserve_map++);
size = *(reserve_map++);
if (size == 0)
break;
- DBG("reserving: %lx -> %lx\n", base, size);
+ DBG("reserving: %llx -> %llx\n", base, size);
lmb_reserve(base, size);
}
};
struct mem_map_entry {
- unsigned long base;
- unsigned long size;
+ u64 base;
+ u64 size;
};
typedef u32 cell_t;
* If problems seem to show up, it would be a good start to track
* them down.
*/
-static void reserve_mem(unsigned long base, unsigned long size)
+static void reserve_mem(u64 base, u64 size)
{
- unsigned long top = base + size;
+ u64 top = base + size;
unsigned long cnt = RELOC(mem_reserve_cnt);
if (size == 0)
if (err)
return 1;
+ /*
+ * Do this before updating the thread state in
+ * current->thread.fpr/vr/evr. That way, if we get preempted
+ * and another task grabs the FPU/Altivec/SPE, it won't be
+ * tempted to save the current CPU state into the thread_struct
+ * and corrupt what we are writing there.
+ */
+ discard_lazy_cpu_state();
+
/* force the process to reload the FP registers from
current->thread when it next does FP instructions */
regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1);
return 1;
#endif /* CONFIG_SPE */
-#ifndef CONFIG_SMP
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
-#endif
return 0;
}
if (!sig)
regs->gpr[13] = save_r13;
- err |= __copy_from_user(¤t->thread.fpr, &sc->fp_regs, FP_REGS_SIZE);
if (set != NULL)
err |= __get_user(set->sig[0], &sc->oldmask);
+ /*
+ * Do this before updating the thread state in
+ * current->thread.fpr/vr. That way, if we get preempted
+ * and another task grabs the FPU/Altivec, it won't be
+ * tempted to save the current CPU state into the thread_struct
+ * and corrupt what we are writing there.
+ */
+ discard_lazy_cpu_state();
+
+ err |= __copy_from_user(¤t->thread.fpr, &sc->fp_regs, FP_REGS_SIZE);
+
#ifdef CONFIG_ALTIVEC
err |= __get_user(v_regs, &sc->v_regs);
err |= __get_user(msr, &sc->gp_regs[PT_MSR]);
current->thread.vrsave = 0;
#endif /* CONFIG_ALTIVEC */
-#ifndef CONFIG_SMP
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
- preempt_enable();
-#endif
/* Force reload of FP/VEC */
regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1 | MSR_VEC);
}
}
-int cbe_system_reset_exception(struct pt_regs *regs)
+static int cbe_system_reset_exception(struct pt_regs *regs)
{
switch (regs->msr & SRR1_WAKEMASK) {
case SRR1_WAKEEE:
#define DBG(fmt...)
#endif
-void cell_show_cpuinfo(struct seq_file *m)
+static void cell_show_cpuinfo(struct seq_file *m)
{
struct device_node *root;
const char *model = "";
* value of the spu_status register after the SPU has stopped.
*
*/
-long do_spu_run(struct file *filp, __u32 __user *unpc, __u32 __user *ustatus)
+static long do_spu_run(struct file *filp,
+ __u32 __user *unpc,
+ __u32 __user *ustatus)
{
long ret;
struct spufs_inode_info *i;
EXTRA_CFLAGS += -mno-minimal-toc
obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \
- hvcall.o proc.o htab.o iommu.o misc.o
-obj-$(CONFIG_PCI) += pci.o irq.o vpdinfo.o
+ hvcall.o proc.o htab.o iommu.o misc.o irq.o
+obj-$(CONFIG_PCI) += pci.o vpdinfo.o
obj-$(CONFIG_IBMVIO) += vio.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_VIOPATH) += viopath.o
#include <asm/pci-bridge.h>
#include <asm/iseries/hv_call_xm.h>
+#include "iommu.h"
+
extern struct list_head iSeries_Global_Device_List;
--- /dev/null
+#ifndef _PLATFORMS_ISERIES_IOMMU_H
+#define _PLATFORMS_ISERIES_IOMMU_H
+
+/*
+ * Copyright (C) 2005 Stephen Rothwell, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the:
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ */
+
+struct device_node;
+struct iommu_table;
+
+/* Creates table for an individual device node */
+extern void iommu_devnode_init_iSeries(struct device_node *dn);
+
+/* Get table parameters from HV */
+extern void iommu_table_getparms_iSeries(unsigned long busno,
+ unsigned char slotno, unsigned char virtbus,
+ struct iommu_table *tbl);
+
+#endif /* _PLATFORMS_ISERIES_IOMMU_H */
extern void iSeries_smp_message_recv(struct pt_regs *);
#endif
+#ifdef CONFIG_PCI
+
enum pci_event_type {
pe_bus_created = 0, /* PHB has been created */
pe_bus_error = 1, /* PHB has failed */
static void pci_event_handler(struct HvLpEvent *event, struct pt_regs *regs)
{
if (event && (event->xType == HvLpEvent_Type_PciIo)) {
- switch (event->xFlags.xFunction) {
- case HvLpEvent_Function_Int:
+ if (hvlpevent_is_int(event))
int_received((struct pci_event *)event, regs);
- break;
- case HvLpEvent_Function_Ack:
+ else
printk(KERN_ERR
"pci_event_handler: unexpected ack received\n");
- break;
- default:
- printk(KERN_ERR
- "pci_event_handler: unexpected event function %d\n",
- (int)event->xFlags.xFunction);
- break;
- }
} else if (event)
printk(KERN_ERR
"pci_event_handler: Unrecognized PCI event type 0x%x\n",
return virtirq;
}
+#endif /* CONFIG_PCI */
+
/*
* Get the next pending IRQ.
*/
if (hvlpevent_is_pending())
process_hvlpevents(regs);
+#ifdef CONFIG_PCI
if (num_pending_irqs) {
spin_lock(&pending_irqs_lock);
for (irq = 0; irq < NR_IRQS; irq++) {
if (irq >= NR_IRQS)
irq = -2;
}
+#endif
return irq;
}
.xPirEnvironMode = 0, /* Piranha stuff */
.xPirConsoleMode = 0,
.xPirDasdMode = 0,
- .xLparInstalled = 0,
- .xSysPartitioned = 0,
- .xHwSyncedTBs = 0,
- .xIntProcUtilHmt = 0,
+ .flags = 0,
.xSpVpdFormat = 0,
.xIntProcRatio = 0,
.xPlicVrmIndex = 0, /* VRM index of PLIC */
struct HvLpEvent * event;
event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr;
- if (event->xFlags.xValid) {
+ if (hvlpevent_is_valid(event)) {
/* rmb() needed only for weakly consistent machines (regatta) */
rmb();
/* Set pointer to next potential event */
next_event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr;
- return next_event->xFlags.xValid |
+ return hvlpevent_is_valid(next_event) ||
hvlpevent_queue.xPlicOverflowIntPending;
}
switch (extra) {
case 3:
tmp = (struct HvLpEvent*)((char*)event + 3 * LpEventAlign);
- tmp->xFlags.xValid = 0;
+ hvlpevent_invalidate(tmp);
case 2:
tmp = (struct HvLpEvent*)((char*)event + 2 * LpEventAlign);
- tmp->xFlags.xValid = 0;
+ hvlpevent_invalidate(tmp);
case 1:
tmp = (struct HvLpEvent*)((char*)event + 1 * LpEventAlign);
- tmp->xFlags.xValid = 0;
+ hvlpevent_invalidate(tmp);
}
mb();
- event->xFlags.xValid = 0;
+ hvlpevent_invalidate(event);
}
void process_hvlpevents(struct pt_regs *regs)
}
memset(ev, 0, sizeof(struct pending_event));
hev = &ev->event.hp_lp_event;
- hev->xFlags.xValid = 1;
- hev->xFlags.xAckType = HvLpEvent_AckType_ImmediateAck;
- hev->xFlags.xAckInd = HvLpEvent_AckInd_DoAck;
- hev->xFlags.xFunction = HvLpEvent_Function_Int;
+ hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DO_ACK | HV_LP_EVENT_INT;
hev->xType = HvLpEvent_Type_MachineFac;
hev->xSourceLp = HvLpConfig_getLpIndex();
hev->xTargetLp = primary_lp;
static void hv_handler(struct HvLpEvent *event, struct pt_regs *regs)
{
if ((event != NULL) && (event->xType == HvLpEvent_Type_MachineFac)) {
- switch(event->xFlags.xFunction) {
- case HvLpEvent_Function_Ack:
+ if (hvlpevent_is_ack(event))
handle_ack((struct io_mf_lp_event *)event);
- break;
- case HvLpEvent_Function_Int:
+ else
handle_int((struct io_mf_lp_event *)event);
- break;
- default:
- printk(KERN_ERR "mf.c: non ack/int event received\n");
- break;
- }
} else
printk(KERN_ERR "mf.c: alien event received\n");
}
#include "irq.h"
#include "pci.h"
#include "call_pci.h"
+#include "iommu.h"
extern unsigned long io_page_mask;
#include <asm/iseries/hv_lp_config.h>
#include <asm/iseries/hv_call_xm.h>
+#include "iommu.h"
+
struct device *iSeries_vio_dev = &vio_bus_device.dev;
EXPORT_SYMBOL(iSeries_vio_dev);
* First see if this is just a normal monitor message from the
* other partition
*/
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
remoteLp = event->xSourceLp;
if (!viopathStatus[remoteLp].isActive)
sendMonMsg(remoteLp);
{
if (!event)
return;
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
printk(VIOPATH_KERN_WARN
"unexpected config request from partition %d",
event->xSourceLp);
- if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
- (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
int subtype = (event->xSubtype & VIOMAJOR_SUBTYPE_MASK)
>> VIOMAJOR_SUBTYPE_SHIFT;
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
remoteLp = event->xSourceLp;
/*
* The isActive is checked because if the hosting partition
"unexpected virtual io event subtype %d from partition %d\n",
event->xSubtype, remoteLp);
/* No handler. Ack if necessary */
- if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
- (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+ if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
}
#endif
-void __init pmac_setup_arch(void)
+static void __init pmac_setup_arch(void)
{
struct device_node *cpu, *ic;
int *fp;
{
while (dn) {
if (PCI_DN(dn)) {
- PCI_DN(dn)->eeh_mode |= mode_flag;
-
/* Mark the pci device driver too */
struct pci_dev *dev = PCI_DN(dn)->pcidev;
+
+ PCI_DN(dn)->eeh_mode |= mode_flag;
+
if (dev && dev->driver)
dev->error_state = pci_channel_io_frozen;
* functions aren't performance sensitive, so this conversion isn't an
* issue.
*/
-int hvcs_convert(long to_convert)
+static int hvcs_convert(long to_convert)
{
switch (to_convert) {
case H_Success:
EXPORT_SYMBOL(hvcs_free_partner_info);
/* Helper function for hvcs_get_partner_info */
-int hvcs_next_partner(uint32_t unit_address,
+static int hvcs_next_partner(uint32_t unit_address,
unsigned long last_p_partition_ID,
unsigned long last_p_unit_address, unsigned long *pi_buff)
#define DBG(fmt...)
-extern int is_python(struct device_node *);
-
static void tce_build_pSeries(struct iommu_table *tbl, long index,
long npages, unsigned long uaddr,
enum dma_data_direction direction)
.release = scanlog_release,
};
-int __init scanlog_init(void)
+static int __init scanlog_init(void)
{
struct proc_dir_entry *ent;
return 0;
}
-void __exit scanlog_cleanup(void)
+static void __exit scanlog_cleanup(void)
{
if (proc_ppc64_scan_log_dump) {
kfree(proc_ppc64_scan_log_dump->data);
struct mpic *pSeries_mpic;
-void pSeries_show_cpuinfo(struct seq_file *m)
+static void pSeries_show_cpuinfo(struct seq_file *m)
{
struct device_node *root;
const char *model = "";
return cpu_status;
}
-int pSeries_cpu_disable(void)
+static int pSeries_cpu_disable(void)
{
int cpu = smp_processor_id();
return 0;
}
-void pSeries_cpu_die(unsigned int cpu)
+static void pSeries_cpu_die(unsigned int cpu)
{
int tries;
int cpu_status;
#ifdef CONFIG_SMP
-irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
{
int cpu = smp_processor_id();
*(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK);
- rpn++;
uaddr += DART_PAGE_SIZE;
}
}
#endif
-int xmon_core(struct pt_regs *regs, int fromipi)
+static int xmon_core(struct pt_regs *regs, int fromipi)
{
int cmd = 0;
unsigned long msr;
return IRQ_HANDLED;
}
-int xmon_bpt(struct pt_regs *regs)
+static int xmon_bpt(struct pt_regs *regs)
{
struct bpt *bp;
unsigned long offset;
return 1;
}
-int xmon_sstep(struct pt_regs *regs)
+static int xmon_sstep(struct pt_regs *regs)
{
if (user_mode(regs))
return 0;
return 1;
}
-int xmon_dabr_match(struct pt_regs *regs)
+static int xmon_dabr_match(struct pt_regs *regs)
{
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
return 0;
return 1;
}
-int xmon_iabr_match(struct pt_regs *regs)
+static int xmon_iabr_match(struct pt_regs *regs)
{
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
return 0;
return 1;
}
-int xmon_ipi(struct pt_regs *regs)
+static int xmon_ipi(struct pt_regs *regs)
{
#ifdef CONFIG_SMP
if (in_xmon && !cpu_isset(smp_processor_id(), cpus_in_xmon))
return 0;
}
-int xmon_fault_handler(struct pt_regs *regs)
+static int xmon_fault_handler(struct pt_regs *regs)
{
struct bpt *bp;
unsigned long offset;
extra-y += vmlinux.lds
obj-y := entry.o traps.o idle.o time.o misc.o \
- process.o \
setup.o \
ppc_htab.o
obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o
+++ /dev/null
-/*
- * arch/ppc/kernel/process.c
- *
- * Derived from "arch/i386/kernel/process.c"
- * Copyright (C) 1995 Linus Torvalds
- *
- * Updated and modified by Cort Dougan (cort@cs.nmt.edu) and
- * Paul Mackerras (paulus@cs.anu.edu.au)
- *
- * PowerPC version
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/elf.h>
-#include <linux/init.h>
-#include <linux/prctl.h>
-#include <linux/init_task.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
-#include <linux/mqueue.h>
-#include <linux/hardirq.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/prom.h>
-
-extern unsigned long _get_SP(void);
-
-struct task_struct *last_task_used_math = NULL;
-struct task_struct *last_task_used_altivec = NULL;
-struct task_struct *last_task_used_spe = NULL;
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-EXPORT_SYMBOL(init_mm);
-
-/* this is 8kB-aligned so we can get to the thread_info struct
- at the base of it from the stack pointer with 1 integer instruction. */
-union thread_union init_thread_union
- __attribute__((__section__(".data.init_task"))) =
-{ INIT_THREAD_INFO(init_task) };
-
-/* initial task structure */
-struct task_struct init_task = INIT_TASK(init_task);
-EXPORT_SYMBOL(init_task);
-
-/* only used to get secondary processor up */
-struct task_struct *current_set[NR_CPUS] = {&init_task, };
-
-#undef SHOW_TASK_SWITCHES
-#undef CHECK_STACK
-
-#if defined(CHECK_STACK)
-unsigned long
-kernel_stack_top(struct task_struct *tsk)
-{
- return ((unsigned long)tsk) + sizeof(union task_union);
-}
-
-unsigned long
-task_top(struct task_struct *tsk)
-{
- return ((unsigned long)tsk) + sizeof(struct thread_info);
-}
-
-/* check to make sure the kernel stack is healthy */
-int check_stack(struct task_struct *tsk)
-{
- unsigned long stack_top = kernel_stack_top(tsk);
- unsigned long tsk_top = task_top(tsk);
- int ret = 0;
-
-#if 0
- /* check thread magic */
- if ( tsk->thread.magic != THREAD_MAGIC )
- {
- ret |= 1;
- printk("thread.magic bad: %08x\n", tsk->thread.magic);
- }
-#endif
-
- if ( !tsk )
- printk("check_stack(): tsk bad tsk %p\n",tsk);
-
- /* check if stored ksp is bad */
- if ( (tsk->thread.ksp > stack_top) || (tsk->thread.ksp < tsk_top) )
- {
- printk("stack out of bounds: %s/%d\n"
- " tsk_top %08lx ksp %08lx stack_top %08lx\n",
- tsk->comm,tsk->pid,
- tsk_top, tsk->thread.ksp, stack_top);
- ret |= 2;
- }
-
- /* check if stack ptr RIGHT NOW is bad */
- if ( (tsk == current) && ((_get_SP() > stack_top ) || (_get_SP() < tsk_top)) )
- {
- printk("current stack ptr out of bounds: %s/%d\n"
- " tsk_top %08lx sp %08lx stack_top %08lx\n",
- current->comm,current->pid,
- tsk_top, _get_SP(), stack_top);
- ret |= 4;
- }
-
-#if 0
- /* check amount of free stack */
- for ( i = (unsigned long *)task_top(tsk) ; i < kernel_stack_top(tsk) ; i++ )
- {
- if ( !i )
- printk("check_stack(): i = %p\n", i);
- if ( *i != 0 )
- {
- /* only notify if it's less than 900 bytes */
- if ( (i - (unsigned long *)task_top(tsk)) < 900 )
- printk("%d bytes free on stack\n",
- i - task_top(tsk));
- break;
- }
- }
-#endif
-
- if (ret)
- {
- panic("bad kernel stack");
- }
- return(ret);
-}
-#endif /* defined(CHECK_STACK) */
-
-/*
- * Make sure the floating-point register state in the
- * the thread_struct is up to date for task tsk.
- */
-void flush_fp_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- /*
- * We need to disable preemption here because if we didn't,
- * another process could get scheduled after the regs->msr
- * test but before we have finished saving the FP registers
- * to the thread_struct. That process could take over the
- * FPU, and then when we get scheduled again we would store
- * bogus values for the remaining FP registers.
- */
- preempt_disable();
- if (tsk->thread.regs->msr & MSR_FP) {
-#ifdef CONFIG_SMP
- /*
- * This should only ever be called for current or
- * for a stopped child process. Since we save away
- * the FP register state on context switch on SMP,
- * there is something wrong if a stopped child appears
- * to still have its FP state in the CPU registers.
- */
- BUG_ON(tsk != current);
-#endif
- giveup_fpu(current);
- }
- preempt_enable();
- }
-}
-
-void enable_kernel_fp(void)
-{
- WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
- if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
- giveup_fpu(current);
- else
- giveup_fpu(NULL); /* just enables FP for kernel */
-#else
- giveup_fpu(last_task_used_math);
-#endif /* CONFIG_SMP */
-}
-EXPORT_SYMBOL(enable_kernel_fp);
-
-int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
-{
- preempt_disable();
- if (tsk->thread.regs && (tsk->thread.regs->msr & MSR_FP))
- giveup_fpu(tsk);
- preempt_enable();
- memcpy(fpregs, &tsk->thread.fpr[0], sizeof(*fpregs));
- return 1;
-}
-
-#ifdef CONFIG_ALTIVEC
-void enable_kernel_altivec(void)
-{
- WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
- if (current->thread.regs && (current->thread.regs->msr & MSR_VEC))
- giveup_altivec(current);
- else
- giveup_altivec(NULL); /* just enable AltiVec for kernel - force */
-#else
- giveup_altivec(last_task_used_altivec);
-#endif /* __SMP __ */
-}
-EXPORT_SYMBOL(enable_kernel_altivec);
-
-/*
- * Make sure the VMX/Altivec register state in the
- * the thread_struct is up to date for task tsk.
- */
-void flush_altivec_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- preempt_disable();
- if (tsk->thread.regs->msr & MSR_VEC) {
-#ifdef CONFIG_SMP
- BUG_ON(tsk != current);
-#endif
- giveup_altivec(current);
- }
- preempt_enable();
- }
-}
-
-int dump_altivec(struct pt_regs *regs, elf_vrregset_t *vrregs)
-{
- if (regs->msr & MSR_VEC)
- giveup_altivec(current);
- memcpy(vrregs, ¤t->thread.vr[0], sizeof(*vrregs));
- return 1;
-}
-#endif /* CONFIG_ALTIVEC */
-
-#ifdef CONFIG_SPE
-void
-enable_kernel_spe(void)
-{
- WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
- if (current->thread.regs && (current->thread.regs->msr & MSR_SPE))
- giveup_spe(current);
- else
- giveup_spe(NULL); /* just enable SPE for kernel - force */
-#else
- giveup_spe(last_task_used_spe);
-#endif /* __SMP __ */
-}
-EXPORT_SYMBOL(enable_kernel_spe);
-
-void flush_spe_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- preempt_disable();
- if (tsk->thread.regs->msr & MSR_SPE) {
-#ifdef CONFIG_SMP
- BUG_ON(tsk != current);
-#endif
- giveup_spe(current);
- }
- preempt_enable();
- }
-}
-
-int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
-{
- if (regs->msr & MSR_SPE)
- giveup_spe(current);
- /* We copy u32 evr[32] + u64 acc + u32 spefscr -> 35 */
- memcpy(evrregs, ¤t->thread.evr[0], sizeof(u32) * 35);
- return 1;
-}
-#endif /* CONFIG_SPE */
-
-struct task_struct *__switch_to(struct task_struct *prev,
- struct task_struct *new)
-{
- struct thread_struct *new_thread, *old_thread;
- unsigned long s;
- struct task_struct *last;
-
- local_irq_save(s);
-#ifdef CHECK_STACK
- check_stack(prev);
- check_stack(new);
-#endif
-
-#ifdef CONFIG_SMP
- /* avoid complexity of lazy save/restore of fpu
- * by just saving it every time we switch out if
- * this task used the fpu during the last quantum.
- *
- * If it tries to use the fpu again, it'll trap and
- * reload its fp regs. So we don't have to do a restore
- * every switch, just a save.
- * -- Cort
- */
- if (prev->thread.regs && (prev->thread.regs->msr & MSR_FP))
- giveup_fpu(prev);
-#ifdef CONFIG_ALTIVEC
- /*
- * If the previous thread used altivec in the last quantum
- * (thus changing altivec regs) then save them.
- * We used to check the VRSAVE register but not all apps
- * set it, so we don't rely on it now (and in fact we need
- * to save & restore VSCR even if VRSAVE == 0). -- paulus
- *
- * On SMP we always save/restore altivec regs just to avoid the
- * complexity of changing processors.
- * -- Cort
- */
- if ((prev->thread.regs && (prev->thread.regs->msr & MSR_VEC)))
- giveup_altivec(prev);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- /*
- * If the previous thread used spe in the last quantum
- * (thus changing spe regs) then save them.
- *
- * On SMP we always save/restore spe regs just to avoid the
- * complexity of changing processors.
- */
- if ((prev->thread.regs && (prev->thread.regs->msr & MSR_SPE)))
- giveup_spe(prev);
-#endif /* CONFIG_SPE */
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_ALTIVEC
- /* Avoid the trap. On smp this this never happens since
- * we don't set last_task_used_altivec -- Cort
- */
- if (new->thread.regs && last_task_used_altivec == new)
- new->thread.regs->msr |= MSR_VEC;
-#endif
-#ifdef CONFIG_SPE
- /* Avoid the trap. On smp this this never happens since
- * we don't set last_task_used_spe
- */
- if (new->thread.regs && last_task_used_spe == new)
- new->thread.regs->msr |= MSR_SPE;
-#endif /* CONFIG_SPE */
- new_thread = &new->thread;
- old_thread = ¤t->thread;
- last = _switch(old_thread, new_thread);
- local_irq_restore(s);
- return last;
-}
-
-void show_regs(struct pt_regs * regs)
-{
- int i, trap;
-
- printk("NIP: %08lX LR: %08lX SP: %08lX REGS: %p TRAP: %04lx %s\n",
- regs->nip, regs->link, regs->gpr[1], regs, regs->trap,
- print_tainted());
- printk("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
- regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
- regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0,
- regs->msr&MSR_IR ? 1 : 0,
- regs->msr&MSR_DR ? 1 : 0);
- trap = TRAP(regs);
- if (trap == 0x300 || trap == 0x600)
- printk("DAR: %08lX, DSISR: %08lX\n", regs->dar, regs->dsisr);
- printk("TASK = %p[%d] '%s' THREAD: %p\n",
- current, current->pid, current->comm, task_thread_info(current));
- printk("Last syscall: %ld ", current->thread.last_syscall);
-
-#ifdef CONFIG_SMP
- printk(" CPU: %d", smp_processor_id());
-#endif /* CONFIG_SMP */
-
- for (i = 0; i < 32; i++) {
- long r;
- if ((i % 8) == 0)
- printk("\n" KERN_INFO "GPR%02d: ", i);
- if (__get_user(r, ®s->gpr[i]))
- break;
- printk("%08lX ", r);
- if (i == 12 && !FULL_REGS(regs))
- break;
- }
- printk("\n");
-#ifdef CONFIG_KALLSYMS
- /*
- * Lookup NIP late so we have the best change of getting the
- * above info out without failing
- */
- printk("NIP [%08lx] ", regs->nip);
- print_symbol("%s\n", regs->nip);
- printk("LR [%08lx] ", regs->link);
- print_symbol("%s\n", regs->link);
-#endif
- show_stack(current, (unsigned long *) regs->gpr[1]);
-}
-
-void exit_thread(void)
-{
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
-}
-
-void flush_thread(void)
-{
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
-}
-
-void
-release_thread(struct task_struct *t)
-{
-}
-
-/*
- * This gets called before we allocate a new thread and copy
- * the current task into it.
- */
-void prepare_to_copy(struct task_struct *tsk)
-{
- struct pt_regs *regs = tsk->thread.regs;
-
- if (regs == NULL)
- return;
- preempt_disable();
- if (regs->msr & MSR_FP)
- giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
- if (regs->msr & MSR_VEC)
- giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- if (regs->msr & MSR_SPE)
- giveup_spe(current);
-#endif /* CONFIG_SPE */
- preempt_enable();
-}
-
-/*
- * Copy a thread..
- */
-int
-copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
- unsigned long unused,
- struct task_struct *p, struct pt_regs *regs)
-{
- struct pt_regs *childregs, *kregs;
- extern void ret_from_fork(void);
- unsigned long sp = (unsigned long)task_stack_page(p) + THREAD_SIZE;
- unsigned long childframe;
-
- CHECK_FULL_REGS(regs);
- /* Copy registers */
- sp -= sizeof(struct pt_regs);
- childregs = (struct pt_regs *) sp;
- *childregs = *regs;
- if ((childregs->msr & MSR_PR) == 0) {
- /* for kernel thread, set `current' and stackptr in new task */
- childregs->gpr[1] = sp + sizeof(struct pt_regs);
- childregs->gpr[2] = (unsigned long) p;
- p->thread.regs = NULL; /* no user register state */
- } else {
- childregs->gpr[1] = usp;
- p->thread.regs = childregs;
- if (clone_flags & CLONE_SETTLS)
- childregs->gpr[2] = childregs->gpr[6];
- }
- childregs->gpr[3] = 0; /* Result from fork() */
- sp -= STACK_FRAME_OVERHEAD;
- childframe = sp;
-
- /*
- * The way this works is that at some point in the future
- * some task will call _switch to switch to the new task.
- * That will pop off the stack frame created below and start
- * the new task running at ret_from_fork. The new task will
- * do some house keeping and then return from the fork or clone
- * system call, using the stack frame created above.
- */
- sp -= sizeof(struct pt_regs);
- kregs = (struct pt_regs *) sp;
- sp -= STACK_FRAME_OVERHEAD;
- p->thread.ksp = sp;
- kregs->nip = (unsigned long)ret_from_fork;
-
- p->thread.last_syscall = -1;
-
- return 0;
-}
-
-/*
- * Set up a thread for executing a new program
- */
-void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp)
-{
- set_fs(USER_DS);
- memset(regs->gpr, 0, sizeof(regs->gpr));
- regs->ctr = 0;
- regs->link = 0;
- regs->xer = 0;
- regs->ccr = 0;
- regs->mq = 0;
- regs->nip = nip;
- regs->gpr[1] = sp;
- regs->msr = MSR_USER;
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
- memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
- current->thread.fpscr.val = 0;
-#ifdef CONFIG_ALTIVEC
- memset(current->thread.vr, 0, sizeof(current->thread.vr));
- memset(¤t->thread.vscr, 0, sizeof(current->thread.vscr));
- current->thread.vrsave = 0;
- current->thread.used_vr = 0;
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- memset(current->thread.evr, 0, sizeof(current->thread.evr));
- current->thread.acc = 0;
- current->thread.spefscr = 0;
- current->thread.used_spe = 0;
-#endif /* CONFIG_SPE */
-}
-
-#define PR_FP_ALL_EXCEPT (PR_FP_EXC_DIV | PR_FP_EXC_OVF | PR_FP_EXC_UND \
- | PR_FP_EXC_RES | PR_FP_EXC_INV)
-
-int set_fpexc_mode(struct task_struct *tsk, unsigned int val)
-{
- struct pt_regs *regs = tsk->thread.regs;
-
- /* This is a bit hairy. If we are an SPE enabled processor
- * (have embedded fp) we store the IEEE exception enable flags in
- * fpexc_mode. fpexc_mode is also used for setting FP exception
- * mode (asyn, precise, disabled) for 'Classic' FP. */
- if (val & PR_FP_EXC_SW_ENABLE) {
-#ifdef CONFIG_SPE
- tsk->thread.fpexc_mode = val &
- (PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT);
-#else
- return -EINVAL;
-#endif
- } else {
- /* on a CONFIG_SPE this does not hurt us. The bits that
- * __pack_fe01 use do not overlap with bits used for
- * PR_FP_EXC_SW_ENABLE. Additionally, the MSR[FE0,FE1] bits
- * on CONFIG_SPE implementations are reserved so writing to
- * them does not change anything */
- if (val > PR_FP_EXC_PRECISE)
- return -EINVAL;
- tsk->thread.fpexc_mode = __pack_fe01(val);
- if (regs != NULL && (regs->msr & MSR_FP) != 0)
- regs->msr = (regs->msr & ~(MSR_FE0|MSR_FE1))
- | tsk->thread.fpexc_mode;
- }
- return 0;
-}
-
-int get_fpexc_mode(struct task_struct *tsk, unsigned long adr)
-{
- unsigned int val;
-
- if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE)
-#ifdef CONFIG_SPE
- val = tsk->thread.fpexc_mode;
-#else
- return -EINVAL;
-#endif
- else
- val = __unpack_fe01(tsk->thread.fpexc_mode);
- return put_user(val, (unsigned int __user *) adr);
-}
-
-int sys_clone(unsigned long clone_flags, unsigned long usp,
- int __user *parent_tidp, void __user *child_threadptr,
- int __user *child_tidp, int p6,
- struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
- if (usp == 0)
- usp = regs->gpr[1]; /* stack pointer for child */
- return do_fork(clone_flags, usp, regs, 0, parent_tidp, child_tidp);
-}
-
-int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
- unsigned long p4, unsigned long p5, unsigned long p6,
- struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
- return do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
-}
-
-int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
- unsigned long p4, unsigned long p5, unsigned long p6,
- struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
- return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1],
- regs, 0, NULL, NULL);
-}
-
-int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
- unsigned long a3, unsigned long a4, unsigned long a5,
- struct pt_regs *regs)
-{
- int error;
- char * filename;
-
- filename = getname((char __user *) a0);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
- preempt_disable();
- if (regs->msr & MSR_FP)
- giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
- if (regs->msr & MSR_VEC)
- giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- if (regs->msr & MSR_SPE)
- giveup_spe(current);
-#endif /* CONFIG_SPE */
- preempt_enable();
- error = do_execve(filename, (char __user *__user *) a1,
- (char __user *__user *) a2, regs);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- }
- putname(filename);
-out:
- return error;
-}
-
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-void show_stack(struct task_struct *tsk, unsigned long *stack)
-{
- unsigned long sp, stack_top, prev_sp, ret;
- int count = 0;
- unsigned long next_exc = 0;
- struct pt_regs *regs;
- extern char ret_from_except, ret_from_except_full, ret_from_syscall;
-
- sp = (unsigned long) stack;
- if (tsk == NULL)
- tsk = current;
- if (sp == 0) {
- if (tsk == current)
- asm("mr %0,1" : "=r" (sp));
- else
- sp = tsk->thread.ksp;
- }
-
- prev_sp = (unsigned long) end_of_stack(tsk);
- stack_top = (unsigned long) task_stack_page(tsk) + THREAD_SIZE;
- while (count < 16 && sp > prev_sp && sp < stack_top && (sp & 3) == 0) {
- if (count == 0) {
- printk("Call trace:");
-#ifdef CONFIG_KALLSYMS
- printk("\n");
-#endif
- } else {
- if (next_exc) {
- ret = next_exc;
- next_exc = 0;
- } else
- ret = *(unsigned long *)(sp + 4);
- printk(" [%08lx] ", ret);
-#ifdef CONFIG_KALLSYMS
- print_symbol("%s", ret);
- printk("\n");
-#endif
- if (ret == (unsigned long) &ret_from_except
- || ret == (unsigned long) &ret_from_except_full
- || ret == (unsigned long) &ret_from_syscall) {
- /* sp + 16 points to an exception frame */
- regs = (struct pt_regs *) (sp + 16);
- if (sp + 16 + sizeof(*regs) <= stack_top)
- next_exc = regs->nip;
- }
- }
- ++count;
- sp = *(unsigned long *)sp;
- }
-#ifndef CONFIG_KALLSYMS
- if (count > 0)
- printk("\n");
-#endif
-}
-
-#if 0
-/*
- * Low level print for debugging - Cort
- */
-int __init ll_printk(const char *fmt, ...)
-{
- va_list args;
- char buf[256];
- int i;
-
- va_start(args, fmt);
- i=vsprintf(buf,fmt,args);
- ll_puts(buf);
- va_end(args);
- return i;
-}
-
-int lines = 24, cols = 80;
-int orig_x = 0, orig_y = 0;
-
-void puthex(unsigned long val)
-{
- unsigned char buf[10];
- int i;
- for (i = 7; i >= 0; i--)
- {
- buf[i] = "0123456789ABCDEF"[val & 0x0F];
- val >>= 4;
- }
- buf[8] = '\0';
- prom_print(buf);
-}
-
-void __init ll_puts(const char *s)
-{
- int x,y;
- char *vidmem = (char *)/*(_ISA_MEM_BASE + 0xB8000) */0xD00B8000;
- char c;
- extern int mem_init_done;
-
- if ( mem_init_done ) /* assume this means we can printk */
- {
- printk(s);
- return;
- }
-
-#if 0
- if ( have_of )
- {
- prom_print(s);
- return;
- }
-#endif
-
- /*
- * can't ll_puts on chrp without openfirmware yet.
- * vidmem just needs to be setup for it.
- * -- Cort
- */
- if ( _machine != _MACH_prep )
- return;
- x = orig_x;
- y = orig_y;
-
- while ( ( c = *s++ ) != '\0' ) {
- if ( c == '\n' ) {
- x = 0;
- if ( ++y >= lines ) {
- /*scroll();*/
- /*y--;*/
- y = 0;
- }
- } else {
- vidmem [ ( x + cols * y ) * 2 ] = c;
- if ( ++x >= cols ) {
- x = 0;
- if ( ++y >= lines ) {
- /*scroll();*/
- /*y--;*/
- y = 0;
- }
- }
- }
- }
-
- orig_x = x;
- orig_y = y;
-}
-#endif
-
-unsigned long get_wchan(struct task_struct *p)
-{
- unsigned long ip, sp;
- unsigned long stack_page = (unsigned long) task_stack_page(p);
- int count = 0;
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
- sp = p->thread.ksp;
- do {
- sp = *(unsigned long *)sp;
- if (sp < stack_page || sp >= stack_page + 8188)
- return 0;
- if (count > 0) {
- ip = *(unsigned long *)(sp + 4);
- if (!in_sched_functions(ip))
- return ip;
- }
- } while (count++ < 16);
- return 0;
-}
u16 viocmd;
HvLpEvent_Rc hvrc;
struct vioblocklpevent *bevent;
+ struct HvLpEvent *hev;
struct scatterlist sg[VIOMAXBLOCKDMA];
int sgindex;
int statindex;
* token so we can match the response up later
*/
memset(bevent, 0, sizeof(struct vioblocklpevent));
- bevent->event.xFlags.xValid = 1;
- bevent->event.xFlags.xFunction = HvLpEvent_Function_Int;
- bevent->event.xFlags.xAckInd = HvLpEvent_AckInd_DoAck;
- bevent->event.xFlags.xAckType = HvLpEvent_AckType_ImmediateAck;
- bevent->event.xType = HvLpEvent_Type_VirtualIo;
- bevent->event.xSubtype = viocmd;
- bevent->event.xSourceLp = HvLpConfig_getLpIndex();
- bevent->event.xTargetLp = viopath_hostLp;
- bevent->event.xSizeMinus1 =
+ hev = &bevent->event;
+ hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DO_ACK |
+ HV_LP_EVENT_INT;
+ hev->xType = HvLpEvent_Type_VirtualIo;
+ hev->xSubtype = viocmd;
+ hev->xSourceLp = HvLpConfig_getLpIndex();
+ hev->xTargetLp = viopath_hostLp;
+ hev->xSizeMinus1 =
offsetof(struct vioblocklpevent, u.rw_data.dma_info) +
(sizeof(bevent->u.rw_data.dma_info[0]) * nsg) - 1;
- bevent->event.xSourceInstanceId =
- viopath_sourceinst(viopath_hostLp);
- bevent->event.xTargetInstanceId =
- viopath_targetinst(viopath_hostLp);
- bevent->event.xCorrelationToken = (u64)req;
+ hev->xSourceInstanceId = viopath_sourceinst(viopath_hostLp);
+ hev->xTargetInstanceId = viopath_targetinst(viopath_hostLp);
+ hev->xCorrelationToken = (u64)req;
bevent->version = VIOVERSION;
bevent->disk = DEVICE_NO(d);
bevent->u.rw_data.offset = start;
/* Notification that a partition went away! */
return;
/* First, we should NEVER get an int here...only acks */
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
printk(VIOD_KERN_WARNING
"Yikes! got an int in viodasd event handler!\n");
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
default:
printk(VIOD_KERN_WARNING "invalid subtype!");
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
/* Notification that a partition went away! */
return;
/* First, we should NEVER get an int here...only acks */
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
printk(VIOCD_KERN_WARNING
"Yikes! got an int in viocd event handler!\n");
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
printk(VIOCD_KERN_WARNING
"message with invalid subtype %0x04X!\n",
event->xSubtype & VIOMINOR_SUBTYPE_MASK);
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
return virtr + wrote;
}
-#if (defined(CONFIG_ISA) || !defined(__mc68000__)) && (!defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI))
+#if defined(CONFIG_ISA) || !defined(__mc68000__)
static ssize_t read_port(struct file * file, char __user * buf,
size_t count, loff_t *ppos)
{
.write = write_null,
};
-#if (defined(CONFIG_ISA) || !defined(__mc68000__)) && (!defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI))
+#if defined(CONFIG_ISA) || !defined(__mc68000__)
static struct file_operations port_fops = {
.llseek = memory_lseek,
.read = read_port,
case 3:
filp->f_op = &null_fops;
break;
-#if (defined(CONFIG_ISA) || !defined(__mc68000__)) && (!defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI))
+#if defined(CONFIG_ISA) || !defined(__mc68000__)
case 4:
filp->f_op = &port_fops;
break;
{1, "mem", S_IRUSR | S_IWUSR | S_IRGRP, &mem_fops},
{2, "kmem", S_IRUSR | S_IWUSR | S_IRGRP, &kmem_fops},
{3, "null", S_IRUGO | S_IWUGO, &null_fops},
-#if (defined(CONFIG_ISA) || !defined(__mc68000__)) && (!defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI))
+#if defined(CONFIG_ISA) || !defined(__mc68000__)
{4, "port", S_IRUSR | S_IWUSR | S_IRGRP, &port_fops},
#endif
{5, "zero", S_IRUGO | S_IWUGO, &zero_fops},
*/
static void initDataEvent(struct viocharlpevent *viochar, HvLpIndex lp)
{
+ struct HvLpEvent *hev = &viochar->event;
+
memset(viochar, 0, sizeof(struct viocharlpevent));
- viochar->event.xFlags.xValid = 1;
- viochar->event.xFlags.xFunction = HvLpEvent_Function_Int;
- viochar->event.xFlags.xAckInd = HvLpEvent_AckInd_NoAck;
- viochar->event.xFlags.xAckType = HvLpEvent_AckType_DeferredAck;
- viochar->event.xType = HvLpEvent_Type_VirtualIo;
- viochar->event.xSubtype = viomajorsubtype_chario | viochardata;
- viochar->event.xSourceLp = HvLpConfig_getLpIndex();
- viochar->event.xTargetLp = lp;
- viochar->event.xSizeMinus1 = sizeof(struct viocharlpevent);
- viochar->event.xSourceInstanceId = viopath_sourceinst(lp);
- viochar->event.xTargetInstanceId = viopath_targetinst(lp);
+ hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DEFERRED_ACK |
+ HV_LP_EVENT_INT;
+ hev->xType = HvLpEvent_Type_VirtualIo;
+ hev->xSubtype = viomajorsubtype_chario | viochardata;
+ hev->xSourceLp = HvLpConfig_getLpIndex();
+ hev->xTargetLp = lp;
+ hev->xSizeMinus1 = sizeof(struct viocharlpevent);
+ hev->xSourceInstanceId = viopath_sourceinst(lp);
+ hev->xTargetInstanceId = viopath_targetinst(lp);
}
/*
struct port_info *pi;
int reject = 0;
- if (event->xFlags.xFunction == HvLpEvent_Function_Ack) {
+ if (hvlpevent_is_ack(event)) {
if (port >= VTTY_PORTS)
return;
}
/* This had better require an ack, otherwise complain */
- if (event->xFlags.xAckInd != HvLpEvent_AckInd_DoAck) {
+ if (!hvlpevent_need_ack(event)) {
printk(VIOCONS_KERN_WARN "viocharopen without ack bit!\n");
return;
}
struct viocharlpevent *cevent = (struct viocharlpevent *)event;
u8 port = cevent->virtual_device;
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
if (port >= VTTY_PORTS) {
printk(VIOCONS_KERN_WARN
"close message from invalid virtual device.\n");
vioHandleConfig(event);
break;
default:
- if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
- (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+ if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
{
struct veth_lpevent *veth_event = (struct veth_lpevent *)event;
- if (event->xFlags.xFunction == HvLpEvent_Function_Ack)
+ if (hvlpevent_is_ack(event))
veth_handle_ack(veth_event);
- else if (event->xFlags.xFunction == HvLpEvent_Function_Int)
+ else
veth_handle_int(veth_event);
}
#endif /* CONFIG_PPC_MULTIPLATFORM */
-#ifdef CONFIG_PPC_PSERIES
-
-/* Creates table for an individual device node */
-extern void iommu_devnode_init_pSeries(struct device_node *dn);
-
-#endif /* CONFIG_PPC_PSERIES */
-
-#ifdef CONFIG_PPC_ISERIES
-
-/* Creates table for an individual device node */
-extern void iommu_devnode_init_iSeries(struct device_node *dn);
-/* Get table parameters from HV */
-extern void iommu_table_getparms_iSeries(unsigned long busno,
- unsigned char slotno,
- unsigned char virtbus,
- struct iommu_table* tbl);
-
-#endif /* CONFIG_PPC_ISERIES */
-
/* Initializes an iommu_table based in values set in the passed-in
* structure
*/
/*
- * HvCall.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-/*
+ *
* This file contains the "hypervisor call" interface which is used to
* drive the hypervisor from the OS.
*/
/*
- * HvCallEvent.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-/*
+ *
* This file contains the "hypervisor call" interface which is used to
* drive the hypervisor from the OS.
*/
typedef u8 HvLpEvent_AckInd;
typedef u8 HvLpEvent_AckType;
-struct HvCallEvent_PackedParms {
- u8 xAckType:1;
- u8 xAckInd:1;
- u8 xRsvd:1;
- u8 xTargetLp:5;
- u8 xType;
- u16 xSubtype;
- HvLpInstanceId xSourceInstId;
- HvLpInstanceId xTargetInstId;
-};
-
typedef u8 HvLpDma_Direction;
typedef u8 HvLpDma_AddressType;
-struct HvCallEvent_PackedDmaParms {
- u8 xDirection:1;
- u8 xLocalAddrType:1;
- u8 xRemoteAddrType:1;
- u8 xRsvd1:5;
- HvLpIndex xRemoteLp;
- u8 xType;
- u8 xRsvd2;
- HvLpInstanceId xLocalInstId;
- HvLpInstanceId xRemoteInstId;
-};
-
typedef u64 HvLpEvent_Rc;
typedef u64 HvLpDma_Rc;
static inline void HvCallEvent_setLpEventStack(u8 queueIndex,
char *eventStackAddr, u32 eventStackSize)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(eventStackAddr);
- HvCall3(HvCallEventSetLpEventStack, queueIndex, abs_addr,
- eventStackSize);
+ HvCall3(HvCallEventSetLpEventStack, queueIndex,
+ virt_to_abs(eventStackAddr), eventStackSize);
}
static inline void HvCallEvent_setLpEventQueueInterruptProc(u8 queueIndex,
static inline HvLpEvent_Rc HvCallEvent_signalLpEvent(struct HvLpEvent *event)
{
- u64 abs_addr;
-
-#ifdef DEBUG_SENDEVENT
- printk("HvCallEvent_signalLpEvent: *event = %016lx\n ",
- (unsigned long)event);
-#endif
- abs_addr = virt_to_abs(event);
- return HvCall1(HvCallEventSignalLpEvent, abs_addr);
+ return HvCall1(HvCallEventSignalLpEvent, virt_to_abs(event));
}
static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
{
/* Pack the misc bits into a single Dword to pass to PLIC */
union {
- struct HvCallEvent_PackedParms parms;
+ struct {
+ u8 ack_and_target;
+ u8 type;
+ u16 subtype;
+ HvLpInstanceId src_inst;
+ HvLpInstanceId target_inst;
+ } parms;
u64 dword;
} packed;
- packed.parms.xAckType = ackType;
- packed.parms.xAckInd = ackInd;
- packed.parms.xRsvd = 0;
- packed.parms.xTargetLp = targetLp;
- packed.parms.xType = type;
- packed.parms.xSubtype = subtype;
- packed.parms.xSourceInstId = sourceInstanceId;
- packed.parms.xTargetInstId = targetInstanceId;
+
+ packed.parms.ack_and_target = (ackType << 7) | (ackInd << 6) | targetLp;
+ packed.parms.type = type;
+ packed.parms.subtype = subtype;
+ packed.parms.src_inst = sourceInstanceId;
+ packed.parms.target_inst = targetInstanceId;
return HvCall7(HvCallEventSignalLpEventParms, packed.dword,
correlationToken, eventData1, eventData2,
static inline HvLpEvent_Rc HvCallEvent_ackLpEvent(struct HvLpEvent *event)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(event);
- return HvCall1(HvCallEventAckLpEvent, abs_addr);
+ return HvCall1(HvCallEventAckLpEvent, virt_to_abs(event));
}
static inline HvLpEvent_Rc HvCallEvent_cancelLpEvent(struct HvLpEvent *event)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(event);
- return HvCall1(HvCallEventCancelLpEvent, abs_addr);
+ return HvCall1(HvCallEventCancelLpEvent, virt_to_abs(event));
}
static inline HvLpInstanceId HvCallEvent_getSourceLpInstanceId(
{
/* Pack the misc bits into a single Dword to pass to PLIC */
union {
- struct HvCallEvent_PackedDmaParms parms;
+ struct {
+ u8 flags;
+ HvLpIndex remote;
+ u8 type;
+ u8 reserved;
+ HvLpInstanceId local_inst;
+ HvLpInstanceId remote_inst;
+ } parms;
u64 dword;
} packed;
- packed.parms.xDirection = direction;
- packed.parms.xLocalAddrType = localAddressType;
- packed.parms.xRemoteAddrType = remoteAddressType;
- packed.parms.xRsvd1 = 0;
- packed.parms.xRemoteLp = remoteLp;
- packed.parms.xType = type;
- packed.parms.xRsvd2 = 0;
- packed.parms.xLocalInstId = localInstanceId;
- packed.parms.xRemoteInstId = remoteInstanceId;
+ packed.parms.flags = (direction << 7) |
+ (localAddressType << 6) | (remoteAddressType << 5);
+ packed.parms.remote = remoteLp;
+ packed.parms.type = type;
+ packed.parms.reserved = 0;
+ packed.parms.local_inst = localInstanceId;
+ packed.parms.remote_inst = remoteInstanceId;
return HvCall4(HvCallEventDmaBufList, packed.dword, localBufList,
remoteBufList, transferLength);
}
-static inline HvLpDma_Rc HvCallEvent_dmaSingle(HvLpEvent_Type type,
- HvLpIndex remoteLp, HvLpDma_Direction direction,
- HvLpInstanceId localInstanceId,
- HvLpInstanceId remoteInstanceId,
- HvLpDma_AddressType localAddressType,
- HvLpDma_AddressType remoteAddressType,
- u64 localAddrOrTce, u64 remoteAddrOrTce, u32 transferLength)
-{
- /* Pack the misc bits into a single Dword to pass to PLIC */
- union {
- struct HvCallEvent_PackedDmaParms parms;
- u64 dword;
- } packed;
-
- packed.parms.xDirection = direction;
- packed.parms.xLocalAddrType = localAddressType;
- packed.parms.xRemoteAddrType = remoteAddressType;
- packed.parms.xRsvd1 = 0;
- packed.parms.xRemoteLp = remoteLp;
- packed.parms.xType = type;
- packed.parms.xRsvd2 = 0;
- packed.parms.xLocalInstId = localInstanceId;
- packed.parms.xRemoteInstId = remoteInstanceId;
-
- return (HvLpDma_Rc)HvCall4(HvCallEventDmaSingle, packed.dword,
- localAddrOrTce, remoteAddrOrTce, transferLength);
-}
-
static inline HvLpDma_Rc HvCallEvent_dmaToSp(void *local, u32 remote,
u32 length, HvLpDma_Direction dir)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(local);
- return HvCall4(HvCallEventDmaToSp, abs_addr, remote, length, dir);
+ return HvCall4(HvCallEventDmaToSp, virt_to_abs(local), remote,
+ length, dir);
}
#endif /* _ASM_POWERPC_ISERIES_HV_CALL_EVENT_H */
/*
- * HvCallSc.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
/*
- * HvLpConfig.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
/*
- * HvLpEvent.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* partitions through PLIC.
*/
-struct HvEventFlags {
- u8 xValid:1; /* Indicates a valid request x00-x00 */
- u8 xRsvd1:4; /* Reserved ... */
- u8 xAckType:1; /* Immediate or deferred ... */
- u8 xAckInd:1; /* Indicates if ACK required ... */
- u8 xFunction:1; /* Interrupt or Acknowledge ... */
-};
-
-
struct HvLpEvent {
- struct HvEventFlags xFlags; /* Event flags x00-x00 */
+ u8 flags; /* Event flags x00-x00 */
u8 xType; /* Type of message x01-x01 */
u16 xSubtype; /* Subtype for event x02-x03 */
u8 xSourceLp; /* Source LP x04-x04 */
#define HvLpEvent_AckType_ImmediateAck 0
#define HvLpEvent_AckType_DeferredAck 1
+#define HV_LP_EVENT_INT 0x01
+#define HV_LP_EVENT_DO_ACK 0x02
+#define HV_LP_EVENT_DEFERRED_ACK 0x04
+#define HV_LP_EVENT_VALID 0x80
+
#define HvLpDma_Direction_LocalToRemote 0
#define HvLpDma_Direction_RemoteToLocal 1
#define HvLpDma_Rc_InvalidAddress 4
#define HvLpDma_Rc_InvalidLength 5
+static inline int hvlpevent_is_valid(struct HvLpEvent *h)
+{
+ return h->flags & HV_LP_EVENT_VALID;
+}
+
+static inline void hvlpevent_invalidate(struct HvLpEvent *h)
+{
+ h->flags &= ~ HV_LP_EVENT_VALID;
+}
+
+static inline int hvlpevent_is_int(struct HvLpEvent *h)
+{
+ return h->flags & HV_LP_EVENT_INT;
+}
+
+static inline int hvlpevent_is_ack(struct HvLpEvent *h)
+{
+ return !hvlpevent_is_int(h);
+}
+
+static inline int hvlpevent_need_ack(struct HvLpEvent *h)
+{
+ return h->flags & HV_LP_EVENT_DO_ACK;
+}
+
#endif /* _ASM_POWERPC_ISERIES_HV_LP_EVENT_H */
/*
- * HvTypes.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
#ifdef CONFIG_PPC_ISERIES
#include <linux/types.h>
/*
- * File iSeries_io.h created by Allan Trautman on Thu Dec 28 2000.
+ * Created by Allan Trautman on Thu Dec 28 2000.
*
* Remaps the io.h for the iSeries Io
* Copyright (C) 2000 Allan H Trautman, IBM Corporation
* End Change Activity
*/
+#ifdef CONFIG_PCI
extern u8 iSeries_Read_Byte(const volatile void __iomem * IoAddress);
extern u16 iSeries_Read_Word(const volatile void __iomem * IoAddress);
extern u32 iSeries_Read_Long(const volatile void __iomem * IoAddress);
size_t n);
extern void iSeries_memcpy_fromio(void *dest,
const volatile void __iomem *source, size_t n);
+#else
+static inline u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
+{
+ return 0xff;
+}
+
+static inline void iSeries_Write_Byte(u8 IoData,
+ volatile void __iomem *IoAddress)
+{
+}
+#endif /* CONFIG_PCI */
#endif /* CONFIG_PPC_ISERIES */
#endif /* _ASM_POWERPC_ISERIES_ISERIES_IO_H */
/*
- * ItExtVpdPanel.h
* Copyright (C) 2002 Dave Boutcher IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
/*
- * ItLpNaca.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
u8 xLpIndex; // LP Index x0B-x0B
u16 xMaxLpQueues; // Number of allocated queues x0C-x0D
u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F
- u8 xPirEnvironMode:8; // Piranha or hardware x10-x10
- u8 xPirConsoleMode:8; // Piranha console indicator x11-x11
- u8 xPirDasdMode:8; // Piranha dasd indicator x12-x12
+ u8 xPirEnvironMode; // Piranha or hardware x10-x10
+ u8 xPirConsoleMode; // Piranha console indicator x11-x11
+ u8 xPirDasdMode; // Piranha dasd indicator x12-x12
u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17
- u8 xLparInstalled:1; // Is LPAR installed on system x18-x1F
- u8 xSysPartitioned:1; // Is the system partitioned ...
- u8 xHwSyncedTBs:1; // Hardware synced TBs ...
- u8 xIntProcUtilHmt:1; // Utilize HMT for interrupts ...
- u8 xRsvd1_1:4; // Reserved ...
- u8 xSpVpdFormat:8; // VPD areas are in CSP format ...
- u8 xIntProcRatio:8; // Ratio of int procs to procs ...
+ u8 flags; // flags, see below x18-x1F
+ u8 xSpVpdFormat; // VPD areas are in CSP format ...
+ u8 xIntProcRatio; // Ratio of int procs to procs ...
u8 xRsvd1_2[5]; // Reserved ...
u16 xRsvd1_3; // Reserved x20-x21
u16 xPlicVrmIndex; // VRM index of PLIC x22-x23
extern struct ItLpNaca itLpNaca;
+#define ITLPNACA_LPAR 0x80 /* Is LPAR installed on the system */
+#define ITLPNACA_PARTITIONED 0x40 /* Is the system partitioned */
+#define ITLPNACA_HWSYNCEDTBS 0x20 /* Hardware synced TBs */
+#define ITLPNACA_HMTINT 0x10 /* Utilize MHT for interrupts */
+
#endif /* _ASM_POWERPC_ISERIES_IT_LP_NACA_H */
/*
- * ItLpQueue.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
/*
- * ItLpRegSave.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
extern struct ItLpRegSave iseries_reg_save[];
-#endif /* _ITLPREGSAVE_H */
+#endif /* _ASM_POWERPC_ISERIES_IT_LP_REG_SAVE_H */
/*
- * LparMap.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
/*
- * mf.h
* Copyright (C) 2001 Troy D. Armstrong IBM Corporation
* Copyright (C) 2004 Stephen Rothwell IBM Corporation
*
/* -*- linux-c -*-
- * drivers/char/vio.h
*
* iSeries Virtual I/O Message Path header
*
extern int pcibios_remove_root_bus(struct pci_controller *phb);
-extern void phbs_remap_io(void);
-
static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
{
struct device_node *busdn = bus->sysdata;
extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
extern void cvt_df(double *from, float *to, struct thread_struct *thread);
+#ifndef CONFIG_SMP
+extern void discard_lazy_cpu_state(void);
+#else
+static inline void discard_lazy_cpu_state(void)
+{
+}
+#endif
+
#ifdef CONFIG_ALTIVEC
extern void flush_altivec_to_thread(struct task_struct *);
#else
#ifndef __PPC_SYSTEM_H
#define __PPC_SYSTEM_H
-#include <linux/config.h>
#include <linux/kernel.h>
#include <asm/atomic.h>
#ifdef CONFIG_SMP
#define smp_mb() mb()
#define smp_rmb() rmb()
-#define smp_wmb() wmb()
+#define smp_wmb() __asm__ __volatile__ ("eieio" : : : "memory")
#define smp_read_barrier_depends() read_barrier_depends()
#else
#define smp_mb() barrier()
extern void read_rtc_time(void);
extern void pmac_find_display(void);
extern void giveup_fpu(struct task_struct *);
+extern void disable_kernel_fp(void);
extern void enable_kernel_fp(void);
extern void flush_fp_to_thread(struct task_struct *);
extern void enable_kernel_altivec(void);
extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
extern void cvt_df(double *from, float *to, struct thread_struct *thread);
+#ifndef CONFIG_SMP
+extern void discard_lazy_cpu_state(void);
+#else
+static inline void discard_lazy_cpu_state(void)
+{
+}
+#endif
+
#ifdef CONFIG_ALTIVEC
extern void flush_altivec_to_thread(struct task_struct *);
#else
projects / firefly-linux-kernel-4.4.55.git / commitdiff