fbdev: intelfb: add support for the Intel Integrated Graphics Controller 965G/965GM

[safe/jmp/linux-2.6] / drivers / oprofile / cpu_buffer.c

diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 78193e4..efcbf4b 100644 (file)
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -27,9 +27,9 @@
 #include "buffer_sync.h"
 #include "oprof.h"
 
-struct oprofile_cpu_buffer cpu_buffer[NR_CPUS] __cacheline_aligned;
+DEFINE_PER_CPU_SHARED_ALIGNED(struct oprofile_cpu_buffer, cpu_buffer);
 
-static void wq_sync_buffer(void *);
+static void wq_sync_buffer(struct work_struct *work);
 
 #define DEFAULT_TIMER_EXPIRE (HZ / 10)
 static int work_enabled;
@@ -38,9 +38,8 @@ void free_cpu_buffers(void)
 {
        int i;
  
-       for_each_online_cpu(i) {
-               vfree(cpu_buffer[i].buffer);
-       }
+       for_each_online_cpu(i)
+               vfree(per_cpu(cpu_buffer, i).buffer);
 }
 
 int alloc_cpu_buffers(void)
@@ -50,7 +49,7 @@ int alloc_cpu_buffers(void)
        unsigned long buffer_size = fs_cpu_buffer_size;
  
        for_each_online_cpu(i) {
-               struct oprofile_cpu_buffer * b = &cpu_buffer[i];
+               struct oprofile_cpu_buffer *b = &per_cpu(cpu_buffer, i);
  
                b->buffer = vmalloc_node(sizeof(struct op_sample) * buffer_size,
                        cpu_to_node(i));
@@ -65,8 +64,10 @@ int alloc_cpu_buffers(void)
                b->head_pos = 0;
                b->sample_received = 0;
                b->sample_lost_overflow = 0;
+               b->backtrace_aborted = 0;
+               b->sample_invalid_eip = 0;
                b->cpu = i;
-               INIT_WORK(&b->work, wq_sync_buffer, b);
+               INIT_DELAYED_WORK(&b->work, wq_sync_buffer);
        }
        return 0;
 
@@ -82,7 +83,7 @@ void start_cpu_work(void)
        work_enabled = 1;
 
        for_each_online_cpu(i) {
-               struct oprofile_cpu_buffer * b = &cpu_buffer[i];
+               struct oprofile_cpu_buffer *b = &per_cpu(cpu_buffer, i);
 
                /*
                 * Spread the work by 1 jiffy per cpu so they dont all
@@ -99,7 +100,7 @@ void end_cpu_work(void)
        work_enabled = 0;
 
        for_each_online_cpu(i) {
-               struct oprofile_cpu_buffer * b = &cpu_buffer[i];
+               struct oprofile_cpu_buffer *b = &per_cpu(cpu_buffer, i);
 
                cancel_delayed_work(&b->work);
        }
@@ -176,6 +177,11 @@ static int log_sample(struct oprofile_cpu_buffer * cpu_buf, unsigned long pc,
 
        cpu_buf->sample_received++;
 
+       if (pc == ESCAPE_CODE) {
+               cpu_buf->sample_invalid_eip++;
+               return 0;
+       }
+
        if (nr_available_slots(cpu_buf) < 3) {
                cpu_buf->sample_lost_overflow++;
                return 0;
@@ -218,11 +224,10 @@ static void oprofile_end_trace(struct oprofile_cpu_buffer * cpu_buf)
        cpu_buf->tracing = 0;
 }
 
-void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+                               unsigned long event, int is_kernel)
 {
-       struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
-       unsigned long pc = profile_pc(regs);
-       int is_kernel = !user_mode(regs);
+       struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
 
        if (!backtrace_depth) {
                log_sample(cpu_buf, pc, is_kernel, event);
@@ -239,15 +244,23 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
        oprofile_end_trace(cpu_buf);
 }
 
+void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+{
+       int is_kernel = !user_mode(regs);
+       unsigned long pc = profile_pc(regs);
+
+       oprofile_add_ext_sample(pc, regs, event, is_kernel);
+}
+
 void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
 {
-       struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
+       struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
        log_sample(cpu_buf, pc, is_kernel, event);
 }
 
 void oprofile_add_trace(unsigned long pc)
 {
-       struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
+       struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
 
        if (!cpu_buf->tracing)
                return;
@@ -276,9 +289,10 @@ void oprofile_add_trace(unsigned long pc)
  * By using schedule_delayed_work_on and then schedule_delayed_work
  * we guarantee this will stay on the correct cpu
  */
-static void wq_sync_buffer(void * data)
+static void wq_sync_buffer(struct work_struct *work)
 {
-       struct oprofile_cpu_buffer * b = data;
+       struct oprofile_cpu_buffer * b =
+               container_of(work, struct oprofile_cpu_buffer, work.work);
        if (b->cpu != smp_processor_id()) {
                printk("WQ on CPU%d, prefer CPU%d\n",
                       smp_processor_id(), b->cpu);