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-rw-r--r--arch/ia64/kernel/Makefile3
-rw-r--r--arch/ia64/kernel/acpi.c2
-rw-r--r--arch/ia64/kernel/efi.c8
-rw-r--r--arch/ia64/kernel/gate.lds.S1
-rw-r--r--arch/ia64/kernel/head.S2
-rw-r--r--arch/ia64/kernel/ia64_ksyms.c2
-rw-r--r--arch/ia64/kernel/kprobes.c9
-rw-r--r--arch/ia64/kernel/pal.S18
-rw-r--r--arch/ia64/kernel/palinfo.c47
-rw-r--r--arch/ia64/kernel/setup.c2
-rw-r--r--arch/ia64/kernel/topology.c2
-rw-r--r--arch/ia64/kernel/traps.c5
-rw-r--r--arch/ia64/kernel/uncached.c86
13 files changed, 107 insertions, 80 deletions
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 0e4553f320b..ad8215a3c58 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -45,7 +45,8 @@ CPPFLAGS_gate.lds := -P -C -U$(ARCH)
quiet_cmd_gate = GATE $@
cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@
-GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1
+GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
+ $(call ld-option, -Wl$(comma)--hash-style=sysv)
$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 99761b81db4..0176556aeec 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -55,7 +55,7 @@
#define BAD_MADT_ENTRY(entry, end) ( \
(!entry) || (unsigned long)entry + sizeof(*entry) > end || \
- ((acpi_table_entry_header *)entry)->length != sizeof(*entry))
+ ((acpi_table_entry_header *)entry)->length < sizeof(*entry))
#define PREFIX "ACPI: "
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index b13c0555c3b..bb8770a177b 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -632,7 +632,7 @@ kern_memory_descriptor (unsigned long phys_addr)
if (phys_addr - md->start < (md->num_pages << EFI_PAGE_SHIFT))
return md;
}
- return 0;
+ return NULL;
}
static efi_memory_desc_t *
@@ -652,7 +652,7 @@ efi_memory_descriptor (unsigned long phys_addr)
if (phys_addr - md->phys_addr < (md->num_pages << EFI_PAGE_SHIFT))
return md;
}
- return 0;
+ return NULL;
}
u32
@@ -759,7 +759,7 @@ valid_phys_addr_range (unsigned long phys_addr, unsigned long size)
}
int
-valid_mmap_phys_addr_range (unsigned long phys_addr, unsigned long size)
+valid_mmap_phys_addr_range (unsigned long pfn, unsigned long size)
{
/*
* MMIO regions are often missing from the EFI memory map.
@@ -923,7 +923,7 @@ find_memmap_space (void)
void
efi_memmap_init(unsigned long *s, unsigned long *e)
{
- struct kern_memdesc *k, *prev = 0;
+ struct kern_memdesc *k, *prev = NULL;
u64 contig_low=0, contig_high=0;
u64 as, ae, lim;
void *efi_map_start, *efi_map_end, *p, *q;
diff --git a/arch/ia64/kernel/gate.lds.S b/arch/ia64/kernel/gate.lds.S
index cc35cddfd4c..6d198339bf8 100644
--- a/arch/ia64/kernel/gate.lds.S
+++ b/arch/ia64/kernel/gate.lds.S
@@ -12,6 +12,7 @@ SECTIONS
. = GATE_ADDR + SIZEOF_HEADERS;
.hash : { *(.hash) } :readable
+ .gnu.hash : { *(.gnu.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 561b8f1d3bc..29236f0c62b 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -853,7 +853,6 @@ END(__ia64_init_fpu)
*/
GLOBAL_ENTRY(ia64_switch_mode_phys)
{
- alloc r2=ar.pfs,0,0,0,0
rsm psr.i | psr.ic // disable interrupts and interrupt collection
mov r15=ip
}
@@ -902,7 +901,6 @@ END(ia64_switch_mode_phys)
*/
GLOBAL_ENTRY(ia64_switch_mode_virt)
{
- alloc r2=ar.pfs,0,0,0,0
rsm psr.i | psr.ic // disable interrupts and interrupt collection
mov r15=ip
}
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index b7cf651ceb1..3ead20fb6f4 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -62,7 +62,7 @@ EXPORT_SYMBOL(__udivdi3);
EXPORT_SYMBOL(__moddi3);
EXPORT_SYMBOL(__umoddi3);
-#if defined(CONFIG_MD_RAID5) || defined(CONFIG_MD_RAID5_MODULE)
+#if defined(CONFIG_MD_RAID456) || defined(CONFIG_MD_RAID456_MODULE)
extern void xor_ia64_2(void);
extern void xor_ia64_3(void);
extern void xor_ia64_4(void);
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index 00d9c83b802..781960f80b6 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -448,11 +448,20 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
return 0;
}
+void __kprobes flush_insn_slot(struct kprobe *p)
+{
+ unsigned long arm_addr;
+
+ arm_addr = ((unsigned long)&p->opcode.bundle) & ~0xFULL;
+ flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t));
+}
+
void __kprobes arch_arm_kprobe(struct kprobe *p)
{
unsigned long addr = (unsigned long)p->addr;
unsigned long arm_addr = addr & ~0xFULL;
+ flush_insn_slot(p);
memcpy((char *)arm_addr, &p->ainsn.insn.bundle, sizeof(bundle_t));
flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t));
}
diff --git a/arch/ia64/kernel/pal.S b/arch/ia64/kernel/pal.S
index 5018c7f2e7a..ebaf1e685f5 100644
--- a/arch/ia64/kernel/pal.S
+++ b/arch/ia64/kernel/pal.S
@@ -217,12 +217,7 @@ GLOBAL_ENTRY(ia64_pal_call_phys_stacked)
.body
;;
ld8 loc2 = [loc2] // loc2 <- entry point
- mov out0 = in0 // first argument
- mov out1 = in1 // copy arg2
- mov out2 = in2 // copy arg3
- mov out3 = in3 // copy arg3
- ;;
- mov loc3 = psr // save psr
+ mov loc3 = psr // save psr
;;
mov loc4=ar.rsc // save RSE configuration
dep.z loc2=loc2,0,61 // convert pal entry point to physical
@@ -236,18 +231,23 @@ GLOBAL_ENTRY(ia64_pal_call_phys_stacked)
;;
andcm r16=loc3,r16 // removes bits to clear from psr
br.call.sptk.many rp=ia64_switch_mode_phys
-.ret6:
+
+ mov out0 = in0 // first argument
+ mov out1 = in1 // copy arg2
+ mov out2 = in2 // copy arg3
+ mov out3 = in3 // copy arg3
mov loc5 = r19
mov loc6 = r20
+
br.call.sptk.many rp=b7 // now make the call
-.ret7:
+
mov ar.rsc=0 // put RSE in enforced lazy, LE mode
mov r16=loc3 // r16= original psr
mov r19=loc5
mov r20=loc6
br.call.sptk.many rp=ia64_switch_mode_virt // return to virtual mode
-.ret8: mov psr.l = loc3 // restore init PSR
+ mov psr.l = loc3 // restore init PSR
mov ar.pfs = loc1
mov rp = loc0
;;
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index 3f5bac59209..0b546e2b36a 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -566,29 +566,23 @@ version_info(char *page)
pal_version_u_t min_ver, cur_ver;
char *p = page;
- /* The PAL_VERSION call is advertised as being able to support
- * both physical and virtual mode calls. This seems to be a documentation
- * bug rather than firmware bug. In fact, it does only support physical mode.
- * So now the code reflects this fact and the pal_version() has been updated
- * accordingly.
- */
- if (ia64_pal_version(&min_ver, &cur_ver) != 0) return 0;
+ if (ia64_pal_version(&min_ver, &cur_ver) != 0)
+ return 0;
p += sprintf(p,
"PAL_vendor : 0x%02x (min=0x%02x)\n"
- "PAL_A : %x.%x.%x (min=%x.%x.%x)\n"
- "PAL_B : %x.%x.%x (min=%x.%x.%x)\n",
- cur_ver.pal_version_s.pv_pal_vendor, min_ver.pal_version_s.pv_pal_vendor,
-
- cur_ver.pal_version_s.pv_pal_a_model>>4,
- cur_ver.pal_version_s.pv_pal_a_model&0xf, cur_ver.pal_version_s.pv_pal_a_rev,
- min_ver.pal_version_s.pv_pal_a_model>>4,
- min_ver.pal_version_s.pv_pal_a_model&0xf, min_ver.pal_version_s.pv_pal_a_rev,
-
- cur_ver.pal_version_s.pv_pal_b_model>>4,
- cur_ver.pal_version_s.pv_pal_b_model&0xf, cur_ver.pal_version_s.pv_pal_b_rev,
- min_ver.pal_version_s.pv_pal_b_model>>4,
- min_ver.pal_version_s.pv_pal_b_model&0xf, min_ver.pal_version_s.pv_pal_b_rev);
+ "PAL_A : %02x.%02x (min=%02x.%02x)\n"
+ "PAL_B : %02x.%02x (min=%02x.%02x)\n",
+ cur_ver.pal_version_s.pv_pal_vendor,
+ min_ver.pal_version_s.pv_pal_vendor,
+ cur_ver.pal_version_s.pv_pal_a_model,
+ cur_ver.pal_version_s.pv_pal_a_rev,
+ min_ver.pal_version_s.pv_pal_a_model,
+ min_ver.pal_version_s.pv_pal_a_rev,
+ cur_ver.pal_version_s.pv_pal_b_model,
+ cur_ver.pal_version_s.pv_pal_b_rev,
+ min_ver.pal_version_s.pv_pal_b_model,
+ min_ver.pal_version_s.pv_pal_b_rev);
return p - page;
}
@@ -958,9 +952,9 @@ remove_palinfo_proc_entries(unsigned int hcpu)
}
}
-static int __cpuinit palinfo_cpu_callback(struct notifier_block *nfb,
- unsigned long action,
- void *hcpu)
+#ifdef CONFIG_HOTPLUG_CPU
+static int palinfo_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
{
unsigned int hotcpu = (unsigned long)hcpu;
@@ -968,20 +962,19 @@ static int __cpuinit palinfo_cpu_callback(struct notifier_block *nfb,
case CPU_ONLINE:
create_palinfo_proc_entries(hotcpu);
break;
-#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
remove_palinfo_proc_entries(hotcpu);
break;
-#endif
}
return NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata palinfo_cpu_notifier =
+static struct notifier_block palinfo_cpu_notifier =
{
.notifier_call = palinfo_cpu_callback,
.priority = 0,
};
+#endif
static int __init
palinfo_init(void)
@@ -1020,7 +1013,7 @@ palinfo_exit(void)
/*
* Unregister from cpu notifier callbacks
*/
- unregister_cpu_notifier(&palinfo_cpu_notifier);
+ unregister_hotcpu_notifier(&palinfo_cpu_notifier);
}
module_init(palinfo_init);
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 6a33f414de5..7ad0d9cc6db 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -35,7 +35,7 @@
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/threads.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
#include <linux/dmi.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index b146f1cfad3..d24fa393b18 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -435,7 +435,7 @@ static int __cpuinit cache_sysfs_init(void)
(void *)(long)i);
}
- register_cpu_notifier(&cache_cpu_notifier);
+ register_hotcpu_notifier(&cache_cpu_notifier);
return 0;
}
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index e7bbb0f40aa..fffa9e0826b 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -117,11 +117,8 @@ die (const char *str, struct pt_regs *regs, long err)
die.lock_owner = -1;
spin_unlock_irq(&die.lock);
- if (panic_on_oops) {
- printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
- ssleep(5);
+ if (panic_on_oops)
panic("Fatal exception");
- }
do_exit(SIGSEGV);
}
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index 5f03b9e524d..4c73a676366 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -32,32 +32,38 @@
extern void __init efi_memmap_walk_uc(efi_freemem_callback_t, void *);
-#define MAX_UNCACHED_GRANULES 5
-static int allocated_granules;
+struct uncached_pool {
+ struct gen_pool *pool;
+ struct mutex add_chunk_mutex; /* serialize adding a converted chunk */
+ int nchunks_added; /* #of converted chunks added to pool */
+ atomic_t status; /* smp called function's return status*/
+};
+
+#define MAX_CONVERTED_CHUNKS_PER_NODE 2
-struct gen_pool *uncached_pool[MAX_NUMNODES];
+struct uncached_pool uncached_pools[MAX_NUMNODES];
static void uncached_ipi_visibility(void *data)
{
int status;
+ struct uncached_pool *uc_pool = (struct uncached_pool *)data;
status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
if ((status != PAL_VISIBILITY_OK) &&
(status != PAL_VISIBILITY_OK_REMOTE_NEEDED))
- printk(KERN_DEBUG "pal_prefetch_visibility() returns %i on "
- "CPU %i\n", status, raw_smp_processor_id());
+ atomic_inc(&uc_pool->status);
}
static void uncached_ipi_mc_drain(void *data)
{
int status;
+ struct uncached_pool *uc_pool = (struct uncached_pool *)data;
status = ia64_pal_mc_drain();
- if (status)
- printk(KERN_WARNING "ia64_pal_mc_drain() failed with %i on "
- "CPU %i\n", status, raw_smp_processor_id());
+ if (status != PAL_STATUS_SUCCESS)
+ atomic_inc(&uc_pool->status);
}
@@ -70,21 +76,34 @@ static void uncached_ipi_mc_drain(void *data)
* This is accomplished by first allocating a granule of cached memory pages
* and then converting them to uncached memory pages.
*/
-static int uncached_add_chunk(struct gen_pool *pool, int nid)
+static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid)
{
struct page *page;
- int status, i;
+ int status, i, nchunks_added = uc_pool->nchunks_added;
unsigned long c_addr, uc_addr;
- if (allocated_granules >= MAX_UNCACHED_GRANULES)
+ if (mutex_lock_interruptible(&uc_pool->add_chunk_mutex) != 0)
+ return -1; /* interrupted by a signal */
+
+ if (uc_pool->nchunks_added > nchunks_added) {
+ /* someone added a new chunk while we were waiting */
+ mutex_unlock(&uc_pool->add_chunk_mutex);
+ return 0;
+ }
+
+ if (uc_pool->nchunks_added >= MAX_CONVERTED_CHUNKS_PER_NODE) {
+ mutex_unlock(&uc_pool->add_chunk_mutex);
return -1;
+ }
/* attempt to allocate a granule's worth of cached memory pages */
page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO,
IA64_GRANULE_SHIFT-PAGE_SHIFT);
- if (!page)
+ if (!page) {
+ mutex_unlock(&uc_pool->add_chunk_mutex);
return -1;
+ }
/* convert the memory pages from cached to uncached */
@@ -102,11 +121,14 @@ static int uncached_add_chunk(struct gen_pool *pool, int nid)
flush_tlb_kernel_range(uc_addr, uc_adddr + IA64_GRANULE_SIZE);
status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
- if (!status) {
- status = smp_call_function(uncached_ipi_visibility, NULL, 0, 1);
- if (status)
+ if (status == PAL_VISIBILITY_OK_REMOTE_NEEDED) {
+ atomic_set(&uc_pool->status, 0);
+ status = smp_call_function(uncached_ipi_visibility, uc_pool,
+ 0, 1);
+ if (status || atomic_read(&uc_pool->status))
goto failed;
- }
+ } else if (status != PAL_VISIBILITY_OK)
+ goto failed;
preempt_disable();
@@ -120,20 +142,24 @@ static int uncached_add_chunk(struct gen_pool *pool, int nid)
preempt_enable();
- ia64_pal_mc_drain();
- status = smp_call_function(uncached_ipi_mc_drain, NULL, 0, 1);
- if (status)
+ status = ia64_pal_mc_drain();
+ if (status != PAL_STATUS_SUCCESS)
+ goto failed;
+ atomic_set(&uc_pool->status, 0);
+ status = smp_call_function(uncached_ipi_mc_drain, uc_pool, 0, 1);
+ if (status || atomic_read(&uc_pool->status))
goto failed;
/*
* The chunk of memory pages has been converted to uncached so now we
* can add it to the pool.
*/
- status = gen_pool_add(pool, uc_addr, IA64_GRANULE_SIZE, nid);
+ status = gen_pool_add(uc_pool->pool, uc_addr, IA64_GRANULE_SIZE, nid);
if (status)
goto failed;
- allocated_granules++;
+ uc_pool->nchunks_added++;
+ mutex_unlock(&uc_pool->add_chunk_mutex);
return 0;
/* failed to convert or add the chunk so give it back to the kernel */
@@ -142,6 +168,7 @@ failed:
ClearPageUncached(&page[i]);
free_pages(c_addr, IA64_GRANULE_SHIFT-PAGE_SHIFT);
+ mutex_unlock(&uc_pool->add_chunk_mutex);
return -1;
}
@@ -158,7 +185,7 @@ failed:
unsigned long uncached_alloc_page(int starting_nid)
{
unsigned long uc_addr;
- struct gen_pool *pool;
+ struct uncached_pool *uc_pool;
int nid;
if (unlikely(starting_nid >= MAX_NUMNODES))
@@ -171,14 +198,14 @@ unsigned long uncached_alloc_page(int starting_nid)
do {
if (!node_online(nid))
continue;
- pool = uncached_pool[nid];
- if (pool == NULL)
+ uc_pool = &uncached_pools[nid];
+ if (uc_pool->pool == NULL)
continue;
do {
- uc_addr = gen_pool_alloc(pool, PAGE_SIZE);
+ uc_addr = gen_pool_alloc(uc_pool->pool, PAGE_SIZE);
if (uc_addr != 0)
return uc_addr;
- } while (uncached_add_chunk(pool, nid) == 0);
+ } while (uncached_add_chunk(uc_pool, nid) == 0);
} while ((nid = (nid + 1) % MAX_NUMNODES) != starting_nid);
@@ -197,7 +224,7 @@ EXPORT_SYMBOL(uncached_alloc_page);
void uncached_free_page(unsigned long uc_addr)
{
int nid = paddr_to_nid(uc_addr - __IA64_UNCACHED_OFFSET);
- struct gen_pool *pool = uncached_pool[nid];
+ struct gen_pool *pool = uncached_pools[nid].pool;
if (unlikely(pool == NULL))
return;
@@ -224,7 +251,7 @@ static int __init uncached_build_memmap(unsigned long uc_start,
unsigned long uc_end, void *arg)
{
int nid = paddr_to_nid(uc_start - __IA64_UNCACHED_OFFSET);
- struct gen_pool *pool = uncached_pool[nid];
+ struct gen_pool *pool = uncached_pools[nid].pool;
size_t size = uc_end - uc_start;
touch_softlockup_watchdog();
@@ -242,7 +269,8 @@ static int __init uncached_init(void)
int nid;
for_each_online_node(nid) {
- uncached_pool[nid] = gen_pool_create(PAGE_SHIFT, nid);
+ uncached_pools[nid].pool = gen_pool_create(PAGE_SHIFT, nid);
+ mutex_init(&uncached_pools[nid].add_chunk_mutex);
}
efi_memmap_walk_uc(uncached_build_memmap, NULL);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 12:04:40 +0000