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Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 

* 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] replace kmalloc+memset with kzalloc
  [IA64] resolve name clash by renaming is_available_memory()
  [IA64] Need export for csum_ipv6_magic
  [IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP
  [PATCH] Add support for type argument in PAL_GET_PSTATE
  [IA64] tidy up return value of ip_fast_csum
  [IA64] implement csum_ipv6_magic for ia64.
  [IA64] More Itanium PAL spec updates
  [IA64] Update processor_info features
  [IA64] Add se bit to Processor State Parameter structure
  [IA64] Add dp bit to cache and bus check structs
  [IA64] SN: Correctly update smp_affinty mask
  [IA64] sparse cleanups
  [IA64] IA64 Kexec/kdump
This commit is contained in:
Linus Torvalds 2006-12-07 15:39:22 -08:00
parent 7f3af60e5a 52fd91088b
commit 6ee7e78e7c
34 changed files with 1146 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
arch/ia64/Kconfig
View File

@ -434,6 +434,29 @@ config IA64_ESI
source "drivers/sn/Kconfig"
config KEXEC
bool "kexec system call (EXPERIMENTAL)"
depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is indepedent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
The name comes from the similiarity to the exec system call.
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you. It may help to enable device hotplugging
support. As of this writing the exact hardware interface is
strongly in flux, so no good recommendation can be made.
config CRASH_DUMP
bool "kernel crash dumps (EXPERIMENTAL)"
depends on EXPERIMENTAL && IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
help
Generate crash dump after being started by kexec.
source "drivers/firmware/Kconfig"
source "fs/Kconfig.binfmt"

10
arch/ia64/hp/common/sba_iommu.c
View File

@ -1672,15 +1672,13 @@ ioc_sac_init(struct ioc *ioc)
* SAC (single address cycle) addressable, so allocate a
* pseudo-device to enforce that.
*/
sac = kmalloc(sizeof(*sac), GFP_KERNEL);
sac = kzalloc(sizeof(*sac), GFP_KERNEL);
if (!sac)
panic(PFX "Couldn't allocate struct pci_dev");
memset(sac, 0, sizeof(*sac));
controller = kmalloc(sizeof(*controller), GFP_KERNEL);
controller = kzalloc(sizeof(*controller), GFP_KERNEL);
if (!controller)
panic(PFX "Couldn't allocate struct pci_controller");
memset(controller, 0, sizeof(*controller));
controller->iommu = ioc;
sac->sysdata = controller;
@ -1737,12 +1735,10 @@ ioc_init(u64 hpa, void *handle)
struct ioc *ioc;
struct ioc_iommu *info;
ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
if (!ioc)
return NULL;
memset(ioc, 0, sizeof(*ioc));
ioc->next = ioc_list;
ioc_list = ioc;

3
arch/ia64/hp/sim/simserial.c
View File

@ -684,12 +684,11 @@ static int get_async_struct(int line, struct async_struct **ret_info)
*ret_info = sstate->info;
return 0;
}
info = kmalloc(sizeof(struct async_struct), GFP_KERNEL);
info = kzalloc(sizeof(struct async_struct), GFP_KERNEL);
if (!info) {
sstate->count--;
return -ENOMEM;
}
memset(info, 0, sizeof(struct async_struct));
init_waitqueue_head(&info->open_wait);
init_waitqueue_head(&info->close_wait);
init_waitqueue_head(&info->delta_msr_wait);

1
arch/ia64/kernel/Makefile
View File

@ -28,6 +28,7 @@ obj-$(CONFIG_IA64_CYCLONE) += cyclone.o
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_IA64_MCA_RECOVERY) += mca_recovery.o
obj-$(CONFIG_KPROBES) += kprobes.o jprobes.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o
obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR) += uncached.o
obj-$(CONFIG_AUDIT) += audit.o
obj-$(CONFIG_PCI_MSI) += msi_ia64.o

11
arch/ia64/kernel/cpufreq/acpi-cpufreq.c
View File

@ -68,7 +68,8 @@ processor_get_pstate (
dprintk("processor_get_pstate\n");
retval = ia64_pal_get_pstate(&pstate_index);
retval = ia64_pal_get_pstate(&pstate_index,
PAL_GET_PSTATE_TYPE_INSTANT);
*value = (u32) pstate_index;
if (retval)
@ -91,7 +92,7 @@ extract_clock (
dprintk("extract_clock\n");
for (i = 0; i < data->acpi_data.state_count; i++) {
if (value >= data->acpi_data.states[i].control)
if (value == data->acpi_data.states[i].status)
return data->acpi_data.states[i].core_frequency;
}
return data->acpi_data.states[i-1].core_frequency;
@ -117,11 +118,7 @@ processor_get_freq (
goto migrate_end;
}
/*
* processor_get_pstate gets the average frequency since the
* last get. So, do two PAL_get_freq()...
*/
ret = processor_get_pstate(&value);
/* processor_get_pstate gets the instantaneous frequency */
ret = processor_get_pstate(&value);
if (ret) {

245
arch/ia64/kernel/crash.c Normal file
View File

@ -0,0 +1,245 @@
/*
* arch/ia64/kernel/crash.c
*
* Architecture specific (ia64) functions for kexec based crash dumps.
*
* Created by: Khalid Aziz <khalid.aziz@hp.com>
* Copyright (C) 2005 Hewlett-Packard Development Company, L.P.
* Copyright (C) 2005 Intel Corp Zou Nan hai <nanhai.zou@intel.com>
*
*/
#include <linux/smp.h>
#include <linux/delay.h>
#include <linux/crash_dump.h>
#include <linux/bootmem.h>
#include <linux/kexec.h>
#include <linux/elfcore.h>
#include <linux/sysctl.h>
#include <linux/init.h>
#include <asm/kdebug.h>
#include <asm/mca.h>
#include <asm/uaccess.h>
int kdump_status[NR_CPUS];
atomic_t kdump_cpu_freezed;
atomic_t kdump_in_progress;
int kdump_on_init = 1;
ssize_t
copy_oldmem_page(unsigned long pfn, char *buf,
size_t csize, unsigned long offset, int userbuf)
{
void *vaddr;
if (!csize)
return 0;
vaddr = __va(pfn<<PAGE_SHIFT);
if (userbuf) {
if (copy_to_user(buf, (vaddr + offset), csize)) {
return -EFAULT;
}
} else
memcpy(buf, (vaddr + offset), csize);
return csize;
}
static inline Elf64_Word
*append_elf_note(Elf64_Word *buf, char *name, unsigned type, void *data,
size_t data_len)
{
struct elf_note *note = (struct elf_note *)buf;
note->n_namesz = strlen(name) + 1;
note->n_descsz = data_len;
note->n_type = type;
buf += (sizeof(*note) + 3)/4;
memcpy(buf, name, note->n_namesz);
buf += (note->n_namesz + 3)/4;
memcpy(buf, data, data_len);
buf += (data_len + 3)/4;
return buf;
}
static void
final_note(void *buf)
{
memset(buf, 0, sizeof(struct elf_note));
}
extern void ia64_dump_cpu_regs(void *);
static DEFINE_PER_CPU(struct elf_prstatus, elf_prstatus);
void
crash_save_this_cpu()
{
void *buf;
unsigned long cfm, sof, sol;
int cpu = smp_processor_id();
struct elf_prstatus *prstatus = &per_cpu(elf_prstatus, cpu);
elf_greg_t *dst = (elf_greg_t *)&(prstatus->pr_reg);
memset(prstatus, 0, sizeof(*prstatus));
prstatus->pr_pid = current->pid;
ia64_dump_cpu_regs(dst);
cfm = dst[43];
sol = (cfm >> 7) & 0x7f;
sof = cfm & 0x7f;
dst[46] = (unsigned long)ia64_rse_skip_regs((unsigned long *)dst[46],
sof - sol);
buf = (u64 *) per_cpu_ptr(crash_notes, cpu);
if (!buf)
return;
buf = append_elf_note(buf, "CORE", NT_PRSTATUS, prstatus,
sizeof(*prstatus));
final_note(buf);
}
static int
kdump_wait_cpu_freeze(void)
{
int cpu_num = num_online_cpus() - 1;
int timeout = 1000;
while(timeout-- > 0) {
if (atomic_read(&kdump_cpu_freezed) == cpu_num)
return 0;
udelay(1000);
}
return 1;
}
void
machine_crash_shutdown(struct pt_regs *pt)
{
/* This function is only called after the system
* has paniced or is otherwise in a critical state.
* The minimum amount of code to allow a kexec'd kernel
* to run successfully needs to happen here.
*
* In practice this means shooting down the other cpus in
* an SMP system.
*/
kexec_disable_iosapic();
#ifdef CONFIG_SMP
kdump_smp_send_stop();
if (kdump_wait_cpu_freeze() && kdump_on_init) {
//not all cpu response to IPI, send INIT to freeze them
kdump_smp_send_init();
}
#endif
}
static void
machine_kdump_on_init(void)
{
local_irq_disable();
kexec_disable_iosapic();
machine_kexec(ia64_kimage);
}
void
kdump_cpu_freeze(struct unw_frame_info *info, void *arg)
{
int cpuid;
local_irq_disable();
cpuid = smp_processor_id();
crash_save_this_cpu();
current->thread.ksp = (__u64)info->sw - 16;
atomic_inc(&kdump_cpu_freezed);
kdump_status[cpuid] = 1;
mb();
if (cpuid == 0) {
for (;;)
cpu_relax();
} else
ia64_jump_to_sal(&sal_boot_rendez_state[cpuid]);
}
static int
kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
{
struct ia64_mca_notify_die *nd;
struct die_args *args = data;
if (!kdump_on_init)
return NOTIFY_DONE;
if (val != DIE_INIT_MONARCH_ENTER &&
val != DIE_INIT_SLAVE_ENTER &&
val != DIE_MCA_RENDZVOUS_LEAVE &&
val != DIE_MCA_MONARCH_LEAVE)
return NOTIFY_DONE;
nd = (struct ia64_mca_notify_die *)args->err;
/* Reason code 1 means machine check rendezous*/
if ((val == DIE_INIT_MONARCH_ENTER || DIE_INIT_SLAVE_ENTER) &&
nd->sos->rv_rc == 1)
return NOTIFY_DONE;
switch (val) {
case DIE_INIT_MONARCH_ENTER:
machine_kdump_on_init();
break;
case DIE_INIT_SLAVE_ENTER:
unw_init_running(kdump_cpu_freeze, NULL);
break;
case DIE_MCA_RENDZVOUS_LEAVE:
if (atomic_read(&kdump_in_progress))
unw_init_running(kdump_cpu_freeze, NULL);
break;
case DIE_MCA_MONARCH_LEAVE:
/* die_register->signr indicate if MCA is recoverable */
if (!args->signr)
machine_kdump_on_init();
break;
}
return NOTIFY_DONE;
}
#ifdef CONFIG_SYSCTL
static ctl_table kdump_on_init_table[] = {
{
.ctl_name = CTL_UNNUMBERED,
.procname = "kdump_on_init",
.data = &kdump_on_init,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{ .ctl_name = 0 }
};
static ctl_table sys_table[] = {
{
.ctl_name = CTL_KERN,
.procname = "kernel",
.mode = 0555,
.child = kdump_on_init_table,
},
{ .ctl_name = 0 }
};
#endif
static int
machine_crash_setup(void)
{
char *from = strstr(saved_command_line, "elfcorehdr=");
static struct notifier_block kdump_init_notifier_nb = {
.notifier_call = kdump_init_notifier,
};
int ret;
if (from)
elfcorehdr_addr = memparse(from+11, &from);
saved_max_pfn = (unsigned long)-1;
if((ret = register_die_notifier(&kdump_init_notifier_nb)) != 0)
return ret;
#ifdef CONFIG_SYSCTL
register_sysctl_table(sys_table, 0);
#endif
return 0;
}
__initcall(machine_crash_setup);

71
arch/ia64/kernel/efi.c
View File

@ -26,6 +26,7 @@
#include <linux/types.h>
#include <linux/time.h>
#include <linux/efi.h>
#include <linux/kexec.h>
#include <asm/io.h>
#include <asm/kregs.h>
@ -41,7 +42,7 @@ extern efi_status_t efi_call_phys (void *, ...);
struct efi efi;
EXPORT_SYMBOL(efi);
static efi_runtime_services_t *runtime;
static unsigned long mem_limit = ~0UL, max_addr = ~0UL;
static unsigned long mem_limit = ~0UL, max_addr = ~0UL, min_addr = 0UL;
#define efi_call_virt(f, args...) (*(f))(args)
@ -224,7 +225,7 @@ efi_gettimeofday (struct timespec *ts)
}
static int
is_available_memory (efi_memory_desc_t *md)
is_memory_available (efi_memory_desc_t *md)
{
if (!(md->attribute & EFI_MEMORY_WB))
return 0;
@ -421,6 +422,8 @@ efi_init (void)
mem_limit = memparse(cp + 4, &cp);
} else if (memcmp(cp, "max_addr=", 9) == 0) {
max_addr = GRANULEROUNDDOWN(memparse(cp + 9, &cp));
} else if (memcmp(cp, "min_addr=", 9) == 0) {
min_addr = GRANULEROUNDDOWN(memparse(cp + 9, &cp));
} else {
while (*cp != ' ' && *cp)
++cp;
@ -428,6 +431,8 @@ efi_init (void)
++cp;
}
}
if (min_addr != 0UL)
printk(KERN_INFO "Ignoring memory below %luMB\n", min_addr >> 20);
if (max_addr != ~0UL)
printk(KERN_INFO "Ignoring memory above %luMB\n", max_addr >> 20);
@ -887,14 +892,15 @@ find_memmap_space (void)
}
contig_high = GRANULEROUNDDOWN(contig_high);
}
if (!is_available_memory(md) || md->type == EFI_LOADER_DATA)
if (!is_memory_available(md) || md->type == EFI_LOADER_DATA)
continue;
/* Round ends inward to granule boundaries */
as = max(contig_low, md->phys_addr);
ae = min(contig_high, efi_md_end(md));
/* keep within max_addr= command line arg */
/* keep within max_addr= and min_addr= command line arg */
as = max(as, min_addr);
ae = min(ae, max_addr);
if (ae <= as)
continue;
@ -962,7 +968,7 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
}
contig_high = GRANULEROUNDDOWN(contig_high);
}
if (!is_available_memory(md))
if (!is_memory_available(md))
continue;
/*
@ -1004,7 +1010,8 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
} else
ae = efi_md_end(md);
/* keep within max_addr= command line arg */
/* keep within max_addr= and min_addr= command line arg */
as = max(as, min_addr);
ae = min(ae, max_addr);
if (ae <= as)
continue;
@ -1116,6 +1123,58 @@ efi_initialize_iomem_resources(struct resource *code_resource,
*/
insert_resource(res, code_resource);
insert_resource(res, data_resource);
#ifdef CONFIG_KEXEC
insert_resource(res, &efi_memmap_res);
insert_resource(res, &boot_param_res);
if (crashk_res.end > crashk_res.start)
insert_resource(res, &crashk_res);
#endif
}
}
}
#ifdef CONFIG_KEXEC
/* find a block of memory aligned to 64M exclude reserved regions
rsvd_regions are sorted
*/
unsigned long
kdump_find_rsvd_region (unsigned long size,
struct rsvd_region *r, int n)
{
int i;
u64 start, end;
u64 alignment = 1UL << _PAGE_SIZE_64M;
void *efi_map_start, *efi_map_end, *p;
efi_memory_desc_t *md;
u64 efi_desc_size;
efi_map_start = __va(ia64_boot_param->efi_memmap);
efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
efi_desc_size = ia64_boot_param->efi_memdesc_size;
for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
md = p;
if (!efi_wb(md))
continue;
start = ALIGN(md->phys_addr, alignment);
end = efi_md_end(md);
for (i = 0; i < n; i++) {
if (__pa(r[i].start) >= start && __pa(r[i].end) < end) {
if (__pa(r[i].start) > start + size)
return start;
start = ALIGN(__pa(r[i].end), alignment);
if (i < n-1 && __pa(r[i+1].start) < start + size)
continue;
else
break;
}
}
if (end > start + size)
return start;
}
printk(KERN_WARNING "Cannot reserve 0x%lx byte of memory for crashdump\n",
size);
return ~0UL;
}
#endif

2
arch/ia64/kernel/entry.S
View File

@ -1575,7 +1575,7 @@ sys_call_table:
data8 sys_mq_timedreceive // 1265
data8 sys_mq_notify
data8 sys_mq_getsetattr
data8 sys_ni_syscall // reserved for kexec_load
data8 sys_kexec_load
data8 sys_ni_syscall // reserved for vserver
data8 sys_waitid // 1270
data8 sys_add_key

1
arch/ia64/kernel/ia64_ksyms.c
View File

@ -14,6 +14,7 @@ EXPORT_SYMBOL(strlen);
#include <asm/checksum.h>
EXPORT_SYMBOL(ip_fast_csum); /* hand-coded assembly */
EXPORT_SYMBOL(csum_ipv6_magic);
#include <asm/semaphore.h>
EXPORT_SYMBOL(__down);

21
arch/ia64/kernel/iosapic.c
View File

@ -288,6 +288,27 @@ nop (unsigned int irq)
/* do nothing... */
}
#ifdef CONFIG_KEXEC
void
kexec_disable_iosapic(void)
{
struct iosapic_intr_info *info;
struct iosapic_rte_info *rte;
u8 vec = 0;
for (info = iosapic_intr_info; info <
iosapic_intr_info + IA64_NUM_VECTORS; ++info, ++vec) {
list_for_each_entry(rte, &info->rtes,
rte_list) {
iosapic_write(rte->addr,
IOSAPIC_RTE_LOW(rte->rte_index),
IOSAPIC_MASK|vec);
iosapic_eoi(rte->addr, vec);
}
}
}
#endif
static void
mask_irq (unsigned int irq)
{

2
arch/ia64/kernel/kprobes.c
View File

@ -851,7 +851,7 @@ static void ia64_get_bsp_cfm(struct unw_frame_info *info, void *arg)
return;
}
} while (unw_unwind(info) >= 0);
lp->bsp = 0;
lp->bsp = NULL;
lp->cfm = 0;
return;
}

133
arch/ia64/kernel/machine_kexec.c Normal file
View File

@ -0,0 +1,133 @@
/*
* arch/ia64/kernel/machine_kexec.c
*
* Handle transition of Linux booting another kernel
* Copyright (C) 2005 Hewlett-Packard Development Comapny, L.P.
* Copyright (C) 2005 Khalid Aziz <khalid.aziz@hp.com>
* Copyright (C) 2006 Intel Corp, Zou Nan hai <nanhai.zou@intel.com>
*
* This source code is licensed under the GNU General Public License,
* Version 2. See the file COPYING for more details.
*/
#include <linux/mm.h>
#include <linux/kexec.h>
#include <linux/cpu.h>
#include <linux/irq.h>
#include <asm/mmu_context.h>
#include <asm/setup.h>
#include <asm/delay.h>
#include <asm/meminit.h>
typedef void (*relocate_new_kernel_t)(unsigned long, unsigned long,
struct ia64_boot_param *, unsigned long);
struct kimage *ia64_kimage;
struct resource efi_memmap_res = {
.name = "EFI Memory Map",
.start = 0,
.end = 0,
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};
struct resource boot_param_res = {
.name = "Boot parameter",
.start = 0,
.end = 0,
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};
/*
* Do what every setup is needed on image and the
* reboot code buffer to allow us to avoid allocations
* later.
*/
int machine_kexec_prepare(struct kimage *image)
{
void *control_code_buffer;
const unsigned long *func;
func = (unsigned long *)&relocate_new_kernel;
/* Pre-load control code buffer to minimize work in kexec path */
control_code_buffer = page_address(image->control_code_page);
memcpy((void *)control_code_buffer, (const void *)func[0],
relocate_new_kernel_size);
flush_icache_range((unsigned long)control_code_buffer,
(unsigned long)control_code_buffer + relocate_new_kernel_size);
ia64_kimage = image;
return 0;
}
void machine_kexec_cleanup(struct kimage *image)
{
}
void machine_shutdown(void)
{
int cpu;
for_each_online_cpu(cpu) {
if (cpu != smp_processor_id())
cpu_down(cpu);
}
kexec_disable_iosapic();
}
/*
* Do not allocate memory (or fail in any way) in machine_kexec().
* We are past the point of no return, committed to rebooting now.
*/
extern void *efi_get_pal_addr(void);
static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
{
struct kimage *image = arg;
relocate_new_kernel_t rnk;
void *pal_addr = efi_get_pal_addr();
unsigned long code_addr = (unsigned long)page_address(image->control_code_page);
unsigned long vector;
int ii;
if (image->type == KEXEC_TYPE_CRASH) {
crash_save_this_cpu();
current->thread.ksp = (__u64)info->sw - 16;
}
/* Interrupts aren't acceptable while we reboot */
local_irq_disable();
/* Mask CMC and Performance Monitor interrupts */
ia64_setreg(_IA64_REG_CR_PMV, 1 << 16);
ia64_setreg(_IA64_REG_CR_CMCV, 1 << 16);
/* Mask ITV and Local Redirect Registers */
ia64_set_itv(1 << 16);
ia64_set_lrr0(1 << 16);
ia64_set_lrr1(1 << 16);
/* terminate possible nested in-service interrupts */
for (ii = 0; ii < 16; ii++)
ia64_eoi();
/* unmask TPR and clear any pending interrupts */
ia64_setreg(_IA64_REG_CR_TPR, 0);
ia64_srlz_d();
vector = ia64_get_ivr();
while (vector != IA64_SPURIOUS_INT_VECTOR) {
ia64_eoi();
vector = ia64_get_ivr();
}
platform_kernel_launch_event();
rnk = (relocate_new_kernel_t)&code_addr;
(*rnk)(image->head, image->start, ia64_boot_param,
GRANULEROUNDDOWN((unsigned long) pal_addr));
BUG();
}
void machine_kexec(struct kimage *image)
{
unw_init_running(ia64_machine_kexec, image);
for(;;);
}

5
arch/ia64/kernel/mca.c
View File

@ -82,6 +82,7 @@
#include <asm/system.h>
#include <asm/sal.h>
#include <asm/mca.h>
#include <asm/kexec.h>
#include <asm/irq.h>
#include <asm/hw_irq.h>
@ -1238,6 +1239,10 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
} else {
/* Dump buffered message to console */
ia64_mlogbuf_finish(1);
#ifdef CONFIG_CRASH_DUMP
atomic_set(&kdump_in_progress, 1);
monarch_cpu = -1;
#endif
}
if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover)
== NOTIFY_STOP)

22
arch/ia64/kernel/palinfo.c
View File

@ -16,6 +16,7 @@
* 02/05/2001 S.Eranian fixed module support
* 10/23/2001 S.Eranian updated pal_perf_mon_info bug fixes
* 03/24/2004 Ashok Raj updated to work with CPU Hotplug
* 10/26/2006 Russ Anderson updated processor features to rev 2.2 spec
*/
#include <linux/types.h>
#include <linux/errno.h>
@ -314,13 +315,20 @@ vm_info(char *page)
"Protection Key Registers(PKR) : %d\n"
"Implemented bits in PKR.key : %d\n"
"Hash Tag ID : 0x%x\n"
"Size of RR.rid : %d\n",
"Size of RR.rid : %d\n"
"Max Purges : ",
vm_info_1.pal_vm_info_1_s.phys_add_size,
vm_info_2.pal_vm_info_2_s.impl_va_msb+1,
vm_info_1.pal_vm_info_1_s.max_pkr+1,
vm_info_1.pal_vm_info_1_s.key_size,
vm_info_1.pal_vm_info_1_s.hash_tag_id,
vm_info_2.pal_vm_info_2_s.rid_size);
if (vm_info_2.pal_vm_info_2_s.max_purges == PAL_MAX_PURGES)
p += sprintf(p, "unlimited\n");
else
p += sprintf(p, "%d\n",
vm_info_2.pal_vm_info_2_s.max_purges ?
vm_info_2.pal_vm_info_2_s.max_purges : 1);
}
if (ia64_pal_mem_attrib(&attrib) == 0) {
@ -467,7 +475,11 @@ static const char *proc_features[]={
NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL,
NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
NULL,NULL,NULL,NULL,NULL, NULL,NULL,NULL,NULL,
NULL,NULL,NULL,NULL,NULL,
"Unimplemented instruction address fault",
"INIT, PMI, and LINT pins",
"Simple unimplemented instr addresses",
"Variable P-state performance",
"Virtual machine features implemented",
"XIP,XPSR,XFS implemented",
"XR1-XR3 implemented",
"Disable dynamic predicate prediction",
@ -475,7 +487,11 @@ static const char *proc_features[]={
"Disable dynamic data cache prefetch",
"Disable dynamic inst cache prefetch",
"Disable dynamic branch prediction",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
"Disable P-states",
"Enable MCA on Data Poisoning",
"Enable vmsw instruction",
"Enable extern environmental notification",
"Disable BINIT on processor time-out",
"Disable dynamic power management (DPM)",
"Disable coherency",

3
arch/ia64/kernel/perfmon.c
View File

@ -853,9 +853,8 @@ pfm_context_alloc(void)
* allocate context descriptor
* must be able to free with interrupts disabled
*/
ctx = kmalloc(sizeof(pfm_context_t), GFP_KERNEL);
ctx = kzalloc(sizeof(pfm_context_t), GFP_KERNEL);
if (ctx) {
memset(ctx, 0, sizeof(pfm_context_t));
DPRINT(("alloc ctx @%p\n", ctx));
}
return ctx;

12
arch/ia64/kernel/perfmon_montecito.h
View File

@ -45,16 +45,16 @@ static pfm_reg_desc_t pfm_mont_pmc_desc[PMU_MAX_PMCS]={
/* pmc29 */ { PFM_REG_NOTIMPL, },
/* pmc30 */ { PFM_REG_NOTIMPL, },
/* pmc31 */ { PFM_REG_NOTIMPL, },
/* pmc32 */ { PFM_REG_CONFIG, 0, 0x30f01ffffffffff, 0x30f01ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc33 */ { PFM_REG_CONFIG, 0, 0x0, 0x1ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc34 */ { PFM_REG_CONFIG, 0, 0xf01ffffffffff, 0xf01ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc35 */ { PFM_REG_CONFIG, 0, 0x0, 0x1ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc32 */ { PFM_REG_CONFIG, 0, 0x30f01ffffffffffUL, 0x30f01ffffffffffUL, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc33 */ { PFM_REG_CONFIG, 0, 0x0, 0x1ffffffffffUL, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc34 */ { PFM_REG_CONFIG, 0, 0xf01ffffffffffUL, 0xf01ffffffffffUL, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc35 */ { PFM_REG_CONFIG, 0, 0x0, 0x1ffffffffffUL, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc36 */ { PFM_REG_CONFIG, 0, 0xfffffff0, 0xf, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc37 */ { PFM_REG_MONITOR, 4, 0x0, 0x3fff, NULL, pfm_mont_pmc_check, {RDEP_MONT_IEAR, 0, 0, 0}, {0, 0, 0, 0}},
/* pmc38 */ { PFM_REG_CONFIG, 0, 0xdb6, 0x2492, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc39 */ { PFM_REG_MONITOR, 6, 0x0, 0xffcf, NULL, pfm_mont_pmc_check, {RDEP_MONT_ETB,0, 0, 0}, {0,0, 0, 0}},
/* pmc40 */ { PFM_REG_MONITOR, 6, 0x2000000, 0xf01cf, NULL, pfm_mont_pmc_check, {RDEP_MONT_DEAR,0, 0, 0}, {0,0, 0, 0}},
/* pmc41 */ { PFM_REG_CONFIG, 0, 0x00002078fefefefe, 0x1e00018181818, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc41 */ { PFM_REG_CONFIG, 0, 0x00002078fefefefeUL, 0x1e00018181818UL, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc42 */ { PFM_REG_MONITOR, 6, 0x0, 0x7ff4f, NULL, pfm_mont_pmc_check, {RDEP_MONT_ETB,0, 0, 0}, {0,0, 0, 0}},
{ PFM_REG_END , 0, 0x0, -1, NULL, NULL, {0,}, {0,}}, /* end marker */
};
@ -185,7 +185,7 @@ pfm_mont_pmc_check(struct task_struct *task, pfm_context_t *ctx, unsigned int cn
DPRINT(("cnum=%u val=0x%lx, using_dbreg=%d loaded=%d\n", cnum, tmpval, ctx->ctx_fl_using_dbreg, is_loaded));
if (cnum == 41 && is_loaded
&& (tmpval & 0x1e00000000000) && (tmpval & 0x18181818UL) != 0x18181818UL && ctx->ctx_fl_using_dbreg == 0) {
&& (tmpval & 0x1e00000000000UL) && (tmpval & 0x18181818UL) != 0x18181818UL && ctx->ctx_fl_using_dbreg == 0) {
DPRINT(("pmc[%d]=0x%lx has active pmc41 settings, clearing dbr\n", cnum, tmpval));

334
arch/ia64/kernel/relocate_kernel.S Normal file
View File

@ -0,0 +1,334 @@
/*
* arch/ia64/kernel/relocate_kernel.S
*
* Relocate kexec'able kernel and start it
*
* Copyright (C) 2005 Hewlett-Packard Development Company, L.P.
* Copyright (C) 2005 Khalid Aziz <khalid.aziz@hp.com>
* Copyright (C) 2005 Intel Corp, Zou Nan hai <nanhai.zou@intel.com>
*
* This source code is licensed under the GNU General Public License,
* Version 2. See the file COPYING for more details.
*/
#include <asm/asmmacro.h>
#include <asm/kregs.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mca_asm.h>
/* Must be relocatable PIC code callable as a C function
*/
GLOBAL_ENTRY(relocate_new_kernel)
.prologue
alloc r31=ar.pfs,4,0,0,0
.body
.reloc_entry:
{
rsm psr.i| psr.ic
mov r2=ip
}
;;
{
flushrs // must be first insn in group
srlz.i
}
;;
dep r2=0,r2,61,3 //to physical address
;;
//first switch to physical mode
add r3=1f-.reloc_entry, r2
movl r16 = IA64_PSR_AC|IA64_PSR_BN|IA64_PSR_IC
mov ar.rsc=0 // put RSE in enforced lazy mode
;;
add sp=(memory_stack_end - 16 - .reloc_entry),r2
add r8=(register_stack - .reloc_entry),r2
;;
mov r18=ar.rnat
mov ar.bspstore=r8
;;
mov cr.ipsr=r16
mov cr.iip=r3
mov cr.ifs=r0
srlz.i
;;
mov ar.rnat=r18
rfi
;;
1:
//physical mode code begin
mov b6=in1
dep r28=0,in2,61,3 //to physical address
// purge all TC entries
#define O(member) IA64_CPUINFO_##member##_OFFSET
GET_THIS_PADDR(r2, cpu_info) // load phys addr of cpu_info into r2
;;
addl r17=O(PTCE_STRIDE),r2
addl r2=O(PTCE_BASE),r2
;;
ld8 r18=[r2],(O(PTCE_COUNT)-O(PTCE_BASE));; // r18=ptce_base
ld4 r19=[r2],4 // r19=ptce_count[0]
ld4 r21=[r17],4 // r21=ptce_stride[0]
;;
ld4 r20=[r2] // r20=ptce_count[1]
ld4 r22=[r17] // r22=ptce_stride[1]
mov r24=r0
;;
adds r20=-1,r20
;;
#undef O
2:
cmp.ltu p6,p7=r24,r19
(p7) br.cond.dpnt.few 4f
mov ar.lc=r20
3:
ptc.e r18
;;
add r18=r22,r18
br.cloop.sptk.few 3b
;;
add r18=r21,r18
add r24=1,r24
;;
br.sptk.few 2b
4:
srlz.i
;;
//purge TR entry for kernel text and data
movl r16=KERNEL_START
mov r18=KERNEL_TR_PAGE_SHIFT<<2
;;
ptr.i r16, r18
ptr.d r16, r18
;;
srlz.i
;;
// purge TR entry for percpu data
movl r16=PERCPU_ADDR
mov r18=PERCPU_PAGE_SHIFT<<2
;;
ptr.d r16,r18
;;
srlz.d
;;
// purge TR entry for pal code
mov r16=in3
mov r18=IA64_GRANULE_SHIFT<<2
;;
ptr.i r16,r18
;;
srlz.i
;;
// purge TR entry for stack
mov r16=IA64_KR(CURRENT_STACK)
;;
shl r16=r16,IA64_GRANULE_SHIFT
movl r19=PAGE_OFFSET
;;
add r16=r19,r16
mov r18=IA64_GRANULE_SHIFT<<2
;;
ptr.d r16,r18
;;
srlz.i
;;
//copy segments
movl r16=PAGE_MASK
mov r30=in0 // in0 is page_list
br.sptk.few .dest_page
;;
.loop:
ld8 r30=[in0], 8;;
.dest_page:
tbit.z p0, p6=r30, 0;; // 0x1 dest page
(p6) and r17=r30, r16
(p6) br.cond.sptk.few .loop;;
tbit.z p0, p6=r30, 1;; // 0x2 indirect page
(p6) and in0=r30, r16
(p6) br.cond.sptk.few .loop;;
tbit.z p0, p6=r30, 2;; // 0x4 end flag
(p6) br.cond.sptk.few .end_loop;;
tbit.z p6, p0=r30, 3;; // 0x8 source page
(p6) br.cond.sptk.few .loop
and r18=r30, r16
// simple copy page, may optimize later
movl r14=PAGE_SIZE/8 - 1;;
mov ar.lc=r14;;
1:
ld8 r14=[r18], 8;;
st8 [r17]=r14;;
fc.i r17
add r17=8, r17
br.ctop.sptk.few 1b
br.sptk.few .loop
;;
.end_loop:
sync.i // for fc.i
;;
srlz.i
;;
srlz.d
;;
br.call.sptk.many b0=b6;;
.align 32
memory_stack:
.fill 8192, 1, 0
memory_stack_end:
register_stack:
.fill 8192, 1, 0
register_stack_end:
relocate_new_kernel_end:
END(relocate_new_kernel)
.global relocate_new_kernel_size
relocate_new_kernel_size:
data8 relocate_new_kernel_end - relocate_new_kernel
GLOBAL_ENTRY(ia64_dump_cpu_regs)
.prologue
alloc loc0=ar.pfs,1,2,0,0
.body
mov ar.rsc=0 // put RSE in enforced lazy mode
add loc1=4*8, in0 // save r4 and r5 first
;;
{
flushrs // flush dirty regs to backing store
srlz.i
}
st8 [loc1]=r4, 8
;;
st8 [loc1]=r5, 8
;;
add loc1=32*8, in0
mov r4=ar.rnat
;;
st8 [in0]=r0, 8 // r0
st8 [loc1]=r4, 8 // rnat
mov r5=pr
;;
st8 [in0]=r1, 8 // r1
st8 [loc1]=r5, 8 // pr
mov r4=b0
;;
st8 [in0]=r2, 8 // r2
st8 [loc1]=r4, 8 // b0
mov r5=b1;
;;
st8 [in0]=r3, 24 // r3
st8 [loc1]=r5, 8 // b1
mov r4=b2
;;
st8 [in0]=r6, 8 // r6
st8 [loc1]=r4, 8 // b2
mov r5=b3
;;
st8 [in0]=r7, 8 // r7
st8 [loc1]=r5, 8 // b3
mov r4=b4
;;
st8 [in0]=r8, 8 // r8
st8 [loc1]=r4, 8 // b4
mov r5=b5
;;
st8 [in0]=r9, 8 // r9
st8 [loc1]=r5, 8 // b5
mov r4=b6
;;
st8 [in0]=r10, 8 // r10
st8 [loc1]=r5, 8 // b6
mov r5=b7
;;
st8 [in0]=r11, 8 // r11
st8 [loc1]=r5, 8 // b7
mov r4=b0
;;
st8 [in0]=r12, 8 // r12
st8 [loc1]=r4, 8 // ip
mov r5=loc0
;;
st8 [in0]=r13, 8 // r13
extr.u r5=r5, 0, 38 // ar.pfs.pfm
mov r4=r0 // user mask
;;
st8 [in0]=r14, 8 // r14
st8 [loc1]=r5, 8 // cfm
;;
st8 [in0]=r15, 8 // r15
st8 [loc1]=r4, 8 // user mask
mov r5=ar.rsc
;;
st8 [in0]=r16, 8 // r16
st8 [loc1]=r5, 8 // ar.rsc
mov r4=ar.bsp
;;
st8 [in0]=r17, 8 // r17
st8 [loc1]=r4, 8 // ar.bsp
mov r5=ar.bspstore
;;
st8 [in0]=r18, 8 // r18
st8 [loc1]=r5, 8 // ar.bspstore
mov r4=ar.rnat
;;
st8 [in0]=r19, 8 // r19
st8 [loc1]=r4, 8 // ar.rnat
mov r5=ar.ccv
;;
st8 [in0]=r20, 8 // r20
st8 [loc1]=r5, 8 // ar.ccv
mov r4=ar.unat
;;
st8 [in0]=r21, 8 // r21
st8 [loc1]=r4, 8 // ar.unat
mov r5 = ar.fpsr
;;
st8 [in0]=r22, 8 // r22
st8 [loc1]=r5, 8 // ar.fpsr
mov r4 = ar.unat
;;
st8 [in0]=r23, 8 // r23
st8 [loc1]=r4, 8 // unat
mov r5 = ar.fpsr
;;
st8 [in0]=r24, 8 // r24
st8 [loc1]=r5, 8 // fpsr
mov r4 = ar.pfs
;;
st8 [in0]=r25, 8 // r25
st8 [loc1]=r4, 8 // ar.pfs
mov r5 = ar.lc
;;
st8 [in0]=r26, 8 // r26
st8 [loc1]=r5, 8 // ar.lc
mov r4 = ar.ec
;;
st8 [in0]=r27, 8 // r27
st8 [loc1]=r4, 8 // ar.ec
mov r5 = ar.csd
;;
st8 [in0]=r28, 8 // r28
st8 [loc1]=r5, 8 // ar.csd
mov r4 = ar.ssd
;;
st8 [in0]=r29, 8 // r29
st8 [loc1]=r4, 8 // ar.ssd
;;
st8 [in0]=r30, 8 // r30
;;
st8 [in0]=r31, 8 // r31
mov ar.pfs=loc0
;;
br.ret.sptk.many rp
END(ia64_dump_cpu_regs)

38
arch/ia64/kernel/setup.c
View File

@ -43,6 +43,8 @@
#include <linux/initrd.h>
#include <linux/pm.h>
#include <linux/cpufreq.h>
#include <linux/kexec.h>
#include <linux/crash_dump.h>
#include <asm/ia32.h>
#include <asm/machvec.h>
@ -252,6 +254,41 @@ reserve_memory (void)
efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
n++;
#ifdef CONFIG_KEXEC
/* crashkernel=size@offset specifies the size to reserve for a crash
* kernel.(offset is ingored for keep compatibility with other archs)
* By reserving this memory we guarantee that linux never set's it
* up as a DMA target.Useful for holding code to do something
* appropriate after a kernel panic.
*/
{
char *from = strstr(saved_command_line, "crashkernel=");
unsigned long base, size;
if (from) {
size = memparse(from + 12, &from);
if (size) {
sort_regions(rsvd_region, n);
base = kdump_find_rsvd_region(size,
rsvd_region, n);
if (base != ~0UL) {
rsvd_region[n].start =
(unsigned long)__va(base);
rsvd_region[n].end =
(unsigned long)__va(base + size);
n++;
crashk_res.start = base;
crashk_res.end = base + size - 1;
}
}
}
efi_memmap_res.start = ia64_boot_param->efi_memmap;
efi_memmap_res.end = efi_memmap_res.start +
ia64_boot_param->efi_memmap_size;
boot_param_res.start = __pa(ia64_boot_param);
boot_param_res.end = boot_param_res.start +
sizeof(*ia64_boot_param);
}
#endif
/* end of memory marker */
rsvd_region[n].start = ~0UL;
rsvd_region[n].end = ~0UL;
@ -263,6 +300,7 @@ reserve_memory (void)
sort_regions(rsvd_region, num_rsvd_regions);
}
/**
* find_initrd - get initrd parameters from the boot parameter structure
*

28
arch/ia64/kernel/smp.c
View File

@ -30,6 +30,7 @@
#include <linux/delay.h>
#include <linux/efi.h>
#include <linux/bitops.h>
#include <linux/kexec.h>
#include <asm/atomic.h>
#include <asm/current.h>
@ -66,6 +67,7 @@ static volatile struct call_data_struct *call_data;
#define IPI_CALL_FUNC 0
#define IPI_CPU_STOP 1
#define IPI_KDUMP_CPU_STOP 3
/* This needs to be cacheline aligned because it is written to by *other* CPUs. */
static DEFINE_PER_CPU(u64, ipi_operation) ____cacheline_aligned;
@ -155,7 +157,11 @@ handle_IPI (int irq, void *dev_id)
case IPI_CPU_STOP:
stop_this_cpu();
break;
#ifdef CONFIG_CRASH_DUMP
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);
break;
@ -213,6 +219,26 @@ send_IPI_self (int op)
send_IPI_single(smp_processor_id(), op);
}
#ifdef CONFIG_CRASH_DUMP
void
kdump_smp_send_stop()
{
send_IPI_allbutself(IPI_KDUMP_CPU_STOP);
}
void
kdump_smp_send_init()
{
unsigned int cpu, self_cpu;
self_cpu = smp_processor_id();
for_each_online_cpu(cpu) {
if (cpu != self_cpu) {
if(kdump_status[cpu] == 0)
platform_send_ipi(cpu, 0, IA64_IPI_DM_INIT, 0);
}
}
}
#endif
/*
* Called with preeemption disabled.
*/

58
arch/ia64/lib/ip_fast_csum.S
View File

@ -8,8 +8,8 @@
* in0: address of buffer to checksum (char *)
* in1: length of the buffer (int)
*
* Copyright (C) 2002 Intel Corp.
* Copyright (C) 2002 Ken Chen <kenneth.w.chen@intel.com>
* Copyright (C) 2002, 2006 Intel Corp.
* Copyright (C) 2002, 2006 Ken Chen <kenneth.w.chen@intel.com>
*/
#include <asm/asmmacro.h>
@ -25,6 +25,9 @@
#define in0 r32
#define in1 r33
#define in2 r34
#define in3 r35
#define in4 r36
#define ret0 r8
GLOBAL_ENTRY(ip_fast_csum)
@ -65,8 +68,9 @@ GLOBAL_ENTRY(ip_fast_csum)
zxt2 r20=r20
;;
add r20=ret0,r20
mov r9=0xffff
;;
andcm ret0=-1,r20
andcm ret0=r9,r20
.restore sp // reset frame state
br.ret.sptk.many b0
;;
@ -88,3 +92,51 @@ GLOBAL_ENTRY(ip_fast_csum)
mov b0=r34
br.ret.sptk.many b0
END(ip_fast_csum)
GLOBAL_ENTRY(csum_ipv6_magic)
ld4 r20=[in0],4
ld4 r21=[in1],4
dep r15=in3,in2,32,16
;;
ld4 r22=[in0],4
ld4 r23=[in1],4
mux1 r15=r15,@rev
;;
ld4 r24=[in0],4
ld4 r25=[in1],4
shr.u r15=r15,16
add r16=r20,r21
add r17=r22,r23
;;
ld4 r26=[in0],4
ld4 r27=[in1],4
add r18=r24,r25
add r8=r16,r17
;;
add r19=r26,r27
add r8=r8,r18
;;
add r8=r8,r19
add r15=r15,in4
;;
add r8=r8,r15
;;
shr.u r10=r8,32 // now fold sum into short
zxt4 r11=r8
;;
add r8=r10,r11
;;
shr.u r10=r8,16 // yeah, keep it rolling
zxt2 r11=r8
;;
add r8=r10,r11
;;
shr.u r10=r8,16 // three times lucky
zxt2 r11=r8
;;
add r8=r10,r11
mov r9=0xffff
;;
andcm r8=r9,r8
br.ret.sptk.many b0
END(csum_ipv6_magic)

3
arch/ia64/pci/pci.c
View File

@ -125,11 +125,10 @@ alloc_pci_controller (int seg)
{
struct pci_controller *controller;
controller = kmalloc(sizeof(*controller), GFP_KERNEL);
controller = kzalloc(sizeof(*controller), GFP_KERNEL);
if (!controller)
return NULL;
memset(controller, 0, sizeof(*controller));
controller->segment = seg;
controller->node = -1;
return controller;

18
arch/ia64/sn/kernel/irq.c
View File

@ -117,7 +117,10 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
nasid_t nasid, int slice)
{
int vector;
int cpuid;
#ifdef CONFIG_SMP
int cpuphys;
#endif
int64_t bridge;
int local_widget, status;
nasid_t local_nasid;
@ -146,7 +149,6 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
vector = sn_irq_info->irq_irq;
/* Free the old PROM new_irq_info structure */
sn_intr_free(local_nasid, local_widget, new_irq_info);
/* Update kernels new_irq_info with new target info */
unregister_intr_pda(new_irq_info);
/* allocate a new PROM new_irq_info struct */
@ -160,8 +162,10 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
return NULL;
}
cpuphys = nasid_slice_to_cpuid(nasid, slice);
new_irq_info->irq_cpuid = cpuphys;
/* Update kernels new_irq_info with new target info */
cpuid = nasid_slice_to_cpuid(new_irq_info->irq_nasid,
new_irq_info->irq_slice);
new_irq_info->irq_cpuid = cpuid;
register_intr_pda(new_irq_info);
pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
@ -180,6 +184,7 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
#ifdef CONFIG_SMP
cpuphys = cpu_physical_id(cpuid);
set_irq_affinity_info((vector & 0xff), cpuphys, 0);
#endif
@ -299,6 +304,9 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
nasid_t nasid = sn_irq_info->irq_nasid;
int slice = sn_irq_info->irq_slice;
int cpu = nasid_slice_to_cpuid(nasid, slice);
#ifdef CONFIG_SMP
int cpuphys;
#endif
pci_dev_get(pci_dev);
sn_irq_info->irq_cpuid = cpu;
@ -311,6 +319,10 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
spin_unlock(&sn_irq_info_lock);
register_intr_pda(sn_irq_info);
#ifdef CONFIG_SMP
cpuphys = cpu_physical_id(cpu);
set_irq_affinity_info(sn_irq_info->irq_irq, cpuphys, 0);
#endif
}
void sn_irq_unfixup(struct pci_dev *pci_dev)

4
arch/ia64/sn/kernel/msi_sn.c
View File

@ -136,10 +136,6 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
*/
msg.data = 0x100 + irq;
#ifdef CONFIG_SMP
set_irq_affinity_info(irq, sn_irq_info->irq_cpuid, 0);
#endif
write_msi_msg(irq, &msg);
set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);

8
arch/ia64/sn/kernel/setup.c
View File

@ -769,5 +769,13 @@ int sn_prom_feature_available(int id)
return 0;
return test_bit(id, sn_prom_features);
}
void
sn_kernel_launch_event(void)
{
/* ignore status until we understand possible failure, if any*/
if (ia64_sn_kernel_launch_event())
printk(KERN_ERR "KEXEC is not supported in this PROM, Please update the PROM.\n");
}
EXPORT_SYMBOL(sn_prom_feature_available);

6
include/asm-ia64/checksum.h
View File

@ -70,4 +70,10 @@ static inline __sum16 csum_fold(__wsum csum)
return (__force __sum16)~sum;
}
#define _HAVE_ARCH_IPV6_CSUM 1
struct in6_addr;
extern unsigned short int csum_ipv6_magic(struct in6_addr *saddr,
struct in6_addr *daddr, __u32 len, unsigned short proto,
unsigned int csum);
#endif /* _ASM_IA64_CHECKSUM_H */

47
include/asm-ia64/kexec.h Normal file
View File

@ -0,0 +1,47 @@
#ifndef _ASM_IA64_KEXEC_H
#define _ASM_IA64_KEXEC_H
/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
/* Maximum address we can use for the control code buffer */
#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
#define KEXEC_CONTROL_CODE_SIZE (8192 + 8192 + 4096)
/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_IA_64
#define MAX_NOTE_BYTES 1024
#define kexec_flush_icache_page(page) do { \
unsigned long page_addr = (unsigned long)page_address(page); \
flush_icache_range(page_addr, page_addr + PAGE_SIZE); \
} while(0)
extern struct kimage *ia64_kimage;
DECLARE_PER_CPU(u64, ia64_mca_pal_base);
const extern unsigned int relocate_new_kernel_size;
extern void relocate_new_kernel(unsigned long, unsigned long,
struct ia64_boot_param *, unsigned long);
static inline void
crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
{
}
extern struct resource efi_memmap_res;
extern struct resource boot_param_res;
extern void kdump_smp_send_stop(void);
extern void kdump_smp_send_init(void);
extern void kexec_disable_iosapic(void);
extern void crash_save_this_cpu(void);
struct rsvd_region;
extern unsigned long kdump_find_rsvd_region(unsigned long size,
struct rsvd_region *rsvd_regions, int n);
extern void kdump_cpu_freeze(struct unw_frame_info *info, void *arg);
extern int kdump_status[];
extern atomic_t kdump_cpu_freezed;
extern atomic_t kdump_in_progress;
#endif /* _ASM_IA64_KEXEC_H */

5
include/asm-ia64/machvec.h
View File

@ -37,6 +37,7 @@ typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
u8 size);
typedef void ia64_mv_migrate_t(struct task_struct * task);
typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
@ -218,6 +219,7 @@ struct ia64_machine_vector {
ia64_mv_setup_msi_irq_t *setup_msi_irq;
ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
ia64_mv_kernel_launch_event_t *kernel_launch_event;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
#define MACHVEC_INIT(name) \
@ -318,6 +320,9 @@ extern ia64_mv_dma_supported swiotlb_dma_supported;
#ifndef platform_tlb_migrate_finish
# define platform_tlb_migrate_finish machvec_noop_mm
#endif
#ifndef platform_kernel_launch_event
# define platform_kernel_launch_event machvec_noop
#endif
#ifndef platform_dma_init
# define platform_dma_init swiotlb_init
#endif

2
include/asm-ia64/machvec_sn2.h
View File

@ -67,6 +67,7 @@ extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device;
extern ia64_mv_dma_mapping_error sn_dma_mapping_error;
extern ia64_mv_dma_supported sn_dma_supported;
extern ia64_mv_migrate_t sn_migrate;
extern ia64_mv_kernel_launch_event_t sn_kernel_launch_event;
extern ia64_mv_setup_msi_irq_t sn_setup_msi_irq;
extern ia64_mv_teardown_msi_irq_t sn_teardown_msi_irq;
extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus;
@ -121,6 +122,7 @@ extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus;
#define platform_dma_mapping_error sn_dma_mapping_error
#define platform_dma_supported sn_dma_supported
#define platform_migrate sn_migrate
#define platform_kernel_launch_event sn_kernel_launch_event
#ifdef CONFIG_PCI_MSI
#define platform_setup_msi_irq sn_setup_msi_irq
#define platform_teardown_msi_irq sn_teardown_msi_irq

3
include/asm-ia64/meminit.h
View File

@ -15,11 +15,12 @@
* - initrd (optional)
* - command line string
* - kernel code & data
* - crash dumping code reserved region
* - Kernel memory map built from EFI memory map
*
* More could be added if necessary
*/
#define IA64_MAX_RSVD_REGIONS 6
#define IA64_MAX_RSVD_REGIONS 7
struct rsvd_region {
unsigned long start; /* virtual address of beginning of element */

11
include/asm-ia64/page.h
View File

@ -101,7 +101,7 @@ do { \
#ifdef CONFIG_VIRTUAL_MEM_MAP
extern int ia64_pfn_valid (unsigned long pfn);
#elif defined(CONFIG_FLATMEM)
#else
# define ia64_pfn_valid(pfn) 1
#endif
@ -110,12 +110,11 @@ extern struct page *vmem_map;
#ifdef CONFIG_DISCONTIGMEM
# define page_to_pfn(page) ((unsigned long) (page - vmem_map))
# define pfn_to_page(pfn) (vmem_map + (pfn))
#else
# include <asm-generic/memory_model.h>
#endif
#endif
#if defined(CONFIG_FLATMEM) || defined(CONFIG_SPARSEMEM)
/* FLATMEM always configures mem_map (mem_map = vmem_map if necessary) */
#include <asm-generic/memory_model.h>
#else
# include <asm-generic/memory_model.h>
#endif
#ifdef CONFIG_FLATMEM

64
include/asm-ia64/pal.h
View File

@ -20,6 +20,8 @@
* 00/05/24 eranian Updated to latest PAL spec, fix structures bugs, added
* 00/05/25 eranian Support for stack calls, and static physical calls
* 00/06/18 eranian Support for stacked physical calls
* 06/10/26 rja Support for Intel Itanium Architecture Software Developer's
* Manual Rev 2.2 (Jan 2006)
*/
/*
@ -69,6 +71,8 @@
#define PAL_PREFETCH_VISIBILITY 41 /* Make Processor Prefetches Visible */
#define PAL_LOGICAL_TO_PHYSICAL 42 /* returns information on logical to physical processor mapping */
#define PAL_CACHE_SHARED_INFO 43 /* returns information on caches shared by logical processor */
#define PAL_GET_HW_POLICY 48 /* Get current hardware resource sharing policy */
#define PAL_SET_HW_POLICY 49 /* Set current hardware resource sharing policy */
#define PAL_COPY_PAL 256 /* relocate PAL procedures and PAL PMI */
#define PAL_HALT_INFO 257 /* return the low power capabilities of processor */
@ -80,6 +84,11 @@
#define PAL_SET_PSTATE 263 /* set the P-state */
#define PAL_BRAND_INFO 274 /* Processor branding information */
#define PAL_GET_PSTATE_TYPE_LASTSET 0
#define PAL_GET_PSTATE_TYPE_AVGANDRESET 1
#define PAL_GET_PSTATE_TYPE_AVGNORESET 2
#define PAL_GET_PSTATE_TYPE_INSTANT 3
#ifndef __ASSEMBLY__
#include <linux/types.h>
@ -102,6 +111,7 @@ typedef s64 pal_status_t;
* cache without sideeffects
* and "restrict" was 1
*/
#define PAL_STATUS_REQUIRES_MEMORY (-9) /* Call requires PAL memory buffer */
/* Processor cache level in the heirarchy */
typedef u64 pal_cache_level_t;
@ -456,7 +466,9 @@ typedef struct pal_process_state_info_s {
* by the processor
*/
reserved2 : 11,
se : 1, /* Shared error. MCA in a
shared structure */
reserved2 : 10,
cc : 1, /* Cache check */
tc : 1, /* TLB check */
bc : 1, /* Bus check */
@ -487,10 +499,12 @@ typedef struct pal_cache_check_info_s {
* error occurred
*/
wiv : 1, /* Way field valid */
reserved2 : 10,
reserved2 : 1,
dp : 1, /* Data poisoned on MBE */
reserved3 : 8,
index : 20, /* Cache line index */
reserved3 : 2,
reserved4 : 2,
is : 1, /* instruction set (1 == ia32) */
iv : 1, /* instruction set field valid */
@ -557,7 +571,7 @@ typedef struct pal_bus_check_info_s {
type : 8, /* Bus xaction type*/
sev : 5, /* Bus error severity*/
hier : 2, /* Bus hierarchy level */
reserved1 : 1,
dp : 1, /* Data poisoned on MBE */
bsi : 8, /* Bus error status
* info
*/
@ -834,7 +848,9 @@ typedef union pal_bus_features_u {
u64 pbf_req_bus_parking : 1;
u64 pbf_bus_lock_mask : 1;
u64 pbf_enable_half_xfer_rate : 1;
u64 pbf_reserved2 : 22;
u64 pbf_reserved2 : 20;
u64 pbf_enable_shared_line_replace : 1;
u64 pbf_enable_exclusive_line_replace : 1;
u64 pbf_disable_xaction_queueing : 1;
u64 pbf_disable_resp_err_check : 1;
u64 pbf_disable_berr_check : 1;
@ -1077,6 +1093,24 @@ ia64_pal_freq_ratios (struct pal_freq_ratio *proc_ratio, struct pal_freq_ratio *
return iprv.status;
}
/*
* Get the current hardware resource sharing policy of the processor
*/
static inline s64
ia64_pal_get_hw_policy (u64 proc_num, u64 *cur_policy, u64 *num_impacted,
u64 *la)
{
struct ia64_pal_retval iprv;
PAL_CALL(iprv, PAL_GET_HW_POLICY, proc_num, 0, 0);
if (cur_policy)
*cur_policy = iprv.v0;
if (num_impacted)
*num_impacted = iprv.v1;
if (la)
*la = iprv.v2;
return iprv.status;
}
/* Make the processor enter HALT or one of the implementation dependent low
* power states where prefetching and execution are suspended and cache and
* TLB coherency is not maintained.
@ -1112,10 +1146,10 @@ ia64_pal_halt_info (pal_power_mgmt_info_u_t *power_buf)
/* Get the current P-state information */
static inline s64
ia64_pal_get_pstate (u64 *pstate_index)
ia64_pal_get_pstate (u64 *pstate_index, unsigned long type)
{
struct ia64_pal_retval iprv;
PAL_CALL_STK(iprv, PAL_GET_PSTATE, 0, 0, 0);
PAL_CALL_STK(iprv, PAL_GET_PSTATE, type, 0, 0);
*pstate_index = iprv.v0;
return iprv.status;
}
@ -1401,6 +1435,17 @@ ia64_pal_rse_info (u64 *num_phys_stacked, pal_hints_u_t *hints)
return iprv.status;
}
/*
* Set the current hardware resource sharing policy of the processor
*/
static inline s64
ia64_pal_set_hw_policy (u64 policy)
{
struct ia64_pal_retval iprv;
PAL_CALL(iprv, PAL_SET_HW_POLICY, policy, 0, 0);
return iprv.status;
}
/* Cause the processor to enter SHUTDOWN state, where prefetching and execution are
* suspended, but cause cache and TLB coherency to be maintained.
* This is usually called in IA-32 mode.
@ -1524,12 +1569,15 @@ typedef union pal_vm_info_1_u {
} pal_vm_info_1_s;
} pal_vm_info_1_u_t;
#define PAL_MAX_PURGES 0xFFFF /* all ones is means unlimited */
typedef union pal_vm_info_2_u {
u64 pvi2_val;
struct {
u64 impl_va_msb : 8,
rid_size : 8,
reserved : 48;
max_purges : 16,
reserved : 32;
} pal_vm_info_2_s;
} pal_vm_info_2_u_t;

9
include/asm-ia64/sn/sn_sal.h
View File

@ -88,6 +88,8 @@
#define SN_SAL_INJECT_ERROR 0x02000067
#define SN_SAL_SET_CPU_NUMBER 0x02000068
#define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069
/*
* Service-specific constants
*/
@ -1155,4 +1157,11 @@ ia64_sn_set_cpu_number(int cpu)
SAL_CALL_NOLOCK(rv, SN_SAL_SET_CPU_NUMBER, cpu, 0, 0, 0, 0, 0, 0);
return rv.status;
}
static inline int
ia64_sn_kernel_launch_event(void)
{
struct ia64_sal_retval rv;
SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
return rv.status;
}
#endif /* _ASM_IA64_SN_SN_SAL_H */

5
include/linux/kexec.h
View File

@ -109,6 +109,10 @@ void crash_save_cpu(struct pt_regs *regs, int cpu);
extern struct kimage *kexec_image;
extern struct kimage *kexec_crash_image;
#ifndef kexec_flush_icache_page
#define kexec_flush_icache_page(page)
#endif
#define KEXEC_ON_CRASH 0x00000001
#define KEXEC_ARCH_MASK 0xffff0000
@ -134,6 +138,7 @@ extern struct resource crashk_res;
typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
extern note_buf_t *crash_notes;
#else /* !CONFIG_KEXEC */
struct pt_regs;
struct task_struct;

1
kernel/kexec.c
View File

@ -852,6 +852,7 @@ static int kimage_load_crash_segment(struct kimage *image,
memset(ptr + uchunk, 0, mchunk - uchunk);
}
result = copy_from_user(ptr, buf, uchunk);
kexec_flush_icache_page(page);
kunmap(page);
if (result) {
result = (result < 0) ? result : -EIO;