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-rw-r--r--arch/i386/defconfig2
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c33
-rw-r--r--arch/i386/kernel/cpu/cpufreq/longhaul.c4
-rw-r--r--arch/i386/kernel/entry.S32
-rw-r--r--arch/i386/kernel/traps.c83
5 files changed, 11 insertions, 143 deletions
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index 3265208e5899..e075ff05c46d 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -1493,8 +1493,6 @@ CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_FRAME_POINTER is not set
-CONFIG_UNWIND_INFO=y
-CONFIG_STACK_UNWIND=y
# CONFIG_FORCED_INLINING is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_RCU_TORTURE_TEST is not set
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 18f4715c655d..b735458c6e3a 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -126,27 +126,6 @@ static unsigned extract_freq(u32 val, struct acpi_cpufreq_data *data)
}
}
-static void wrport(u16 port, u8 bit_width, u32 value)
-{
- if (bit_width <= 8)
- outb(value, port);
- else if (bit_width <= 16)
- outw(value, port);
- else if (bit_width <= 32)
- outl(value, port);
-}
-
-static void rdport(u16 port, u8 bit_width, u32 * ret)
-{
- *ret = 0;
- if (bit_width <= 8)
- *ret = inb(port);
- else if (bit_width <= 16)
- *ret = inw(port);
- else if (bit_width <= 32)
- *ret = inl(port);
-}
-
struct msr_addr {
u32 reg;
};
@@ -177,7 +156,9 @@ static void do_drv_read(struct drv_cmd *cmd)
rdmsr(cmd->addr.msr.reg, cmd->val, h);
break;
case SYSTEM_IO_CAPABLE:
- rdport(cmd->addr.io.port, cmd->addr.io.bit_width, &cmd->val);
+ acpi_os_read_port((acpi_io_address)cmd->addr.io.port,
+ &cmd->val,
+ (u32)cmd->addr.io.bit_width);
break;
default:
break;
@@ -193,7 +174,9 @@ static void do_drv_write(struct drv_cmd *cmd)
wrmsr(cmd->addr.msr.reg, cmd->val, h);
break;
case SYSTEM_IO_CAPABLE:
- wrport(cmd->addr.io.port, cmd->addr.io.bit_width, cmd->val);
+ acpi_os_write_port((acpi_io_address)cmd->addr.io.port,
+ cmd->val,
+ (u32)cmd->addr.io.bit_width);
break;
default:
break;
@@ -699,14 +682,14 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
if (result)
goto err_freqfree;
- switch (data->cpu_feature) {
+ switch (perf->control_register.space_id) {
case ACPI_ADR_SPACE_SYSTEM_IO:
/* Current speed is unknown and not detectable by IO port */
policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
break;
case ACPI_ADR_SPACE_FIXED_HARDWARE:
acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
- get_cur_freq_on_cpu(cpu);
+ policy->cur = get_cur_freq_on_cpu(cpu);
break;
default:
break;
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c
index c548daad3476..6d9c97a690fd 100644
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -787,8 +787,10 @@ static int __init longhaul_init(void)
switch (c->x86_model) {
case 6 ... 9:
return cpufreq_register_driver(&longhaul_driver);
+ case 10:
+ printk(KERN_ERR PFX "Use acpi-cpufreq driver for VIA C7\n");
default:
- printk (KERN_INFO PFX "Unknown VIA CPU. Contact davej@codemonkey.org.uk\n");
+ ;;
}
return -ENODEV;
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index de34b7fed3c1..06461b8b715d 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -979,38 +979,6 @@ ENTRY(spurious_interrupt_bug)
jmp error_code
CFI_ENDPROC
-#ifdef CONFIG_STACK_UNWIND
-ENTRY(arch_unwind_init_running)
- CFI_STARTPROC
- movl 4(%esp), %edx
- movl (%esp), %ecx
- leal 4(%esp), %eax
- movl %ebx, PT_EBX(%edx)
- xorl %ebx, %ebx
- movl %ebx, PT_ECX(%edx)
- movl %ebx, PT_EDX(%edx)
- movl %esi, PT_ESI(%edx)
- movl %edi, PT_EDI(%edx)
- movl %ebp, PT_EBP(%edx)
- movl %ebx, PT_EAX(%edx)
- movl $__USER_DS, PT_DS(%edx)
- movl $__USER_DS, PT_ES(%edx)
- movl $0, PT_GS(%edx)
- movl %ebx, PT_ORIG_EAX(%edx)
- movl %ecx, PT_EIP(%edx)
- movl 12(%esp), %ecx
- movl $__KERNEL_CS, PT_CS(%edx)
- movl %ebx, PT_EFLAGS(%edx)
- movl %eax, PT_OLDESP(%edx)
- movl 8(%esp), %eax
- movl %ecx, 8(%esp)
- movl PT_EBX(%edx), %ebx
- movl $__KERNEL_DS, PT_OLDSS(%edx)
- jmpl *%eax
- CFI_ENDPROC
-ENDPROC(arch_unwind_init_running)
-#endif
-
ENTRY(kernel_thread_helper)
pushl $0 # fake return address for unwinder
CFI_STARTPROC
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 2b30dbf8d117..0efad8aeb41a 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -94,11 +94,6 @@ asmlinkage void spurious_interrupt_bug(void);
asmlinkage void machine_check(void);
int kstack_depth_to_print = 24;
-#ifdef CONFIG_STACK_UNWIND
-static int call_trace = 1;
-#else
-#define call_trace (-1)
-#endif
ATOMIC_NOTIFIER_HEAD(i386die_chain);
int register_die_notifier(struct notifier_block *nb)
@@ -152,33 +147,6 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
return ebp;
}
-struct ops_and_data {
- struct stacktrace_ops *ops;
- void *data;
-};
-
-static asmlinkage int
-dump_trace_unwind(struct unwind_frame_info *info, void *data)
-{
- struct ops_and_data *oad = (struct ops_and_data *)data;
- int n = 0;
- unsigned long sp = UNW_SP(info);
-
- if (arch_unw_user_mode(info))
- return -1;
- while (unwind(info) == 0 && UNW_PC(info)) {
- n++;
- oad->ops->address(oad->data, UNW_PC(info));
- if (arch_unw_user_mode(info))
- break;
- if ((sp & ~(PAGE_SIZE - 1)) == (UNW_SP(info) & ~(PAGE_SIZE - 1))
- && sp > UNW_SP(info))
- break;
- sp = UNW_SP(info);
- }
- return n;
-}
-
#define MSG(msg) ops->warning(data, msg)
void dump_trace(struct task_struct *task, struct pt_regs *regs,
@@ -190,41 +158,6 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
if (!task)
task = current;
- if (call_trace >= 0) {
- int unw_ret = 0;
- struct unwind_frame_info info;
- struct ops_and_data oad = { .ops = ops, .data = data };
-
- if (regs) {
- if (unwind_init_frame_info(&info, task, regs) == 0)
- unw_ret = dump_trace_unwind(&info, &oad);
- } else if (task == current)
- unw_ret = unwind_init_running(&info, dump_trace_unwind,
- &oad);
- else {
- if (unwind_init_blocked(&info, task) == 0)
- unw_ret = dump_trace_unwind(&info, &oad);
- }
- if (unw_ret > 0) {
- if (call_trace == 1 && !arch_unw_user_mode(&info)) {
- ops->warning_symbol(data,
- "DWARF2 unwinder stuck at %s",
- UNW_PC(&info));
- if (UNW_SP(&info) >= PAGE_OFFSET) {
- MSG("Leftover inexact backtrace:");
- stack = (void *)UNW_SP(&info);
- if (!stack)
- return;
- ebp = UNW_FP(&info);
- } else
- MSG("Full inexact backtrace again:");
- } else if (call_trace >= 1)
- return;
- else
- MSG("Full inexact backtrace again:");
- } else
- MSG("Inexact backtrace:");
- }
if (!stack) {
unsigned long dummy;
stack = &dummy;
@@ -1258,19 +1191,3 @@ static int __init kstack_setup(char *s)
return 1;
}
__setup("kstack=", kstack_setup);
-
-#ifdef CONFIG_STACK_UNWIND
-static int __init call_trace_setup(char *s)
-{
- if (strcmp(s, "old") == 0)
- call_trace = -1;
- else if (strcmp(s, "both") == 0)
- call_trace = 0;
- else if (strcmp(s, "newfallback") == 0)
- call_trace = 1;
- else if (strcmp(s, "new") == 2)
- call_trace = 2;
- return 1;
-}
-__setup("call_trace=", call_trace_setup);
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 22:40:31 +0000