Blackfin arch: get oprofile work for user space

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

6 files changed, 21 insertions, 25 deletions

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 5f09d934932..a394957ddaf 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -60,10 +60,6 @@ config GENERIC_CALIBRATE_DELAY
         bool
         default y
 
-config HARDWARE_PM
-        def_bool y
-        depends on OPROFILE
-
 source "init/Kconfig"
 
 source "kernel/Kconfig.preempt"
@@ -1019,6 +1015,12 @@ config EBIU_FCTLVAL
         hex "Flash Memory Bank Control Register"
         depends on BF54x
         default 6
+
+config HARDWARE_PM
+        bool "OProfile use hardware porformance monitor"
+        depends on OPROFILE
+        default n
+
 endmenu
 
 #############################################################################
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index 4a2ec7a9675..2604b532897 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -152,6 +152,12 @@ ENTRY(_evt_ivhw)
 1:
 #endif
 
+        # We are going to dump something out, so make sure we print IPEND properly
+        p2.l = lo(IPEND);
+        p2.h = hi(IPEND);
+        r0 = [p2];
+        [sp + PT_IPEND] = r0;
+
 #ifdef CONFIG_HARDWARE_PM
         r7 = [sp + PT_SEQSTAT];
         r7 = r7 >>> 0xe;
@@ -161,11 +167,6 @@ ENTRY(_evt_ivhw)
         cc = r7 == r5;
         if cc jump .Lcall_do_ovf; /* deal with performance counter overflow */
 #endif
-        # We are going to dump something out, so make sure we print IPEND properly
-        p2.l = lo(IPEND);
-        p2.h = hi(IPEND);
-        r0 = [p2];
-        [sp + PT_IPEND] = r0;
 
         /* set the EXCAUSE to HWERR for trap_c */
         r0 = [sp + PT_SEQSTAT];
@@ -196,6 +197,7 @@ ENTRY(_evt_ivhw)
 #ifdef CONFIG_HARDWARE_PM
 .Lcall_do_ovf:
 
+        R0 = SP;
         SP += -12;
         call _pm_overflow;
         SP += 12;
diff --git a/arch/blackfin/mach-common/irqpanic.c b/arch/blackfin/mach-common/irqpanic.c
index 606ded9ff4e..7b69413c155 100644
--- a/arch/blackfin/mach-common/irqpanic.c
+++ b/arch/blackfin/mach-common/irqpanic.c
@@ -139,8 +139,8 @@ asmlinkage void irq_panic(int reason, struct pt_regs *regs)
 /*
  * call the handler of Performance overflow
  */
-asmlinkage void pm_overflow(int irq, struct pt_regs *regs)
+asmlinkage void pm_overflow(struct pt_regs *regs)
 {
-        pm_overflow_handler(irq, regs);
+        pm_overflow_handler(regs);
 }
 #endif
diff --git a/arch/blackfin/oprofile/common.c b/arch/blackfin/oprofile/common.c
index f34795a2e48..cf8f48848d1 100644
--- a/arch/blackfin/oprofile/common.c
+++ b/arch/blackfin/oprofile/common.c
@@ -126,20 +126,12 @@ static int op_bfin_create_files(struct super_block *sb, struct dentry *root)
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
 #ifdef CONFIG_HARDWARE_PM
-        unsigned int dspid;
-
         mutex_init(&pfmon_lock);
 
-        dspid = bfin_dspid();
-
-        printk(KERN_INFO "Oprofile got the cpu id is 0x%x. \n", dspid);
 
-        switch (dspid) {
-        case BFIN_533_ID:
-                model = &op_model_bfin533;
-                model->num_counters = 2;
-                break;
-        case BFIN_537_ID:
+        switch (bfin_read_CHIPID() & CHIPID_MANUFACTURE) {
+        case 0xca:
+                printk(KERN_INFO "Oprofile: cpu vendor is Analog Devices.\n");
                 model = &op_model_bfin533;
                 model->num_counters = 2;
                 break;
diff --git a/arch/blackfin/oprofile/op_blackfin.h b/arch/blackfin/oprofile/op_blackfin.h
index 05dd08c9d15..37aec0eb00d 100644
--- a/arch/blackfin/oprofile/op_blackfin.h
+++ b/arch/blackfin/oprofile/op_blackfin.h
@@ -93,6 +93,6 @@ static inline void count_write(unsigned int *count)
         CSYNC();
 }
 
-extern int pm_overflow_handler(int irq, struct pt_regs *regs);
+extern int pm_overflow_handler(struct pt_regs *regs);
 
 #endif
diff --git a/arch/blackfin/oprofile/op_model_bf533.c b/arch/blackfin/oprofile/op_model_bf533.c
index d1c698bb9ee..0e34df169b2 100644
--- a/arch/blackfin/oprofile/op_model_bf533.c
+++ b/arch/blackfin/oprofile/op_model_bf533.c
@@ -52,7 +52,7 @@ static unsigned curr_pfctl, curr_count[2];
 
 static int bfin533_reg_setup(struct op_counter_config *ctr)
 {
-        unsigned int pfctl = ctr_read();
+        unsigned int pfctl = 0;
         unsigned int count[2];
 
         /* set Blackfin perf monitor regs with ctr */
@@ -118,7 +118,7 @@ static int get_kernel(void)
         return is_kernel;
 }
 
-int pm_overflow_handler(int irq, struct pt_regs *regs)
+int pm_overflow_handler(struct pt_regs *regs)
 {
         int is_kernel;
         int i, cpu;