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-rw-r--r--arch/powerpc/Kconfig.debug2
-rw-r--r--arch/powerpc/configs/pseries_defconfig2
-rw-r--r--arch/powerpc/include/asm/cacheflush.h1
-rw-r--r--arch/powerpc/include/asm/emulated_ops.h19
-rw-r--r--arch/powerpc/include/asm/hvcall.h2
-rw-r--r--arch/powerpc/include/asm/pmac_low_i2c.h6
-rw-r--r--arch/powerpc/include/asm/prom.h147
-rw-r--r--arch/powerpc/include/asm/reg.h2
-rw-r--r--arch/powerpc/include/asm/socket.h2
-rw-r--r--arch/powerpc/include/asm/trace.h133
-rw-r--r--arch/powerpc/kernel/align.c12
-rw-r--r--arch/powerpc/kernel/entry_64.S4
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S3
-rw-r--r--arch/powerpc/kernel/idle.c4
-rw-r--r--arch/powerpc/kernel/irq.c6
-rw-r--r--arch/powerpc/kernel/perf_event.c2
-rw-r--r--arch/powerpc/kernel/power5+-pmu.c4
-rw-r--r--arch/powerpc/kernel/power5-pmu.c6
-rw-r--r--arch/powerpc/kernel/power6-pmu.c2
-rw-r--r--arch/powerpc/kernel/power7-pmu.c6
-rw-r--r--arch/powerpc/kernel/ppc970-pmu.c4
-rw-r--r--arch/powerpc/kernel/prom.c23
-rw-r--r--arch/powerpc/kernel/setup-common.c1
-rw-r--r--arch/powerpc/kernel/setup_32.c2
-rw-r--r--arch/powerpc/kernel/setup_64.c2
-rw-r--r--arch/powerpc/kernel/sys_ppc32.c52
-rw-r--r--arch/powerpc/kernel/time.c6
-rw-r--r--arch/powerpc/kernel/traps.c18
-rw-r--r--arch/powerpc/kvm/powerpc.c5
-rw-r--r--arch/powerpc/kvm/timing.h2
-rw-r--r--arch/powerpc/lib/copypage_64.S4
-rw-r--r--arch/powerpc/platforms/powermac/low_i2c.c25
-rw-r--r--arch/powerpc/platforms/pseries/hvCall.S132
-rw-r--r--arch/powerpc/platforms/pseries/hvCall_inst.c38
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c33
35 files changed, 363 insertions, 349 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 3b1005185390..bf3382f1904d 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -46,7 +46,7 @@ config DEBUG_STACK_USAGE
config HCALL_STATS
bool "Hypervisor call instrumentation"
- depends on PPC_PSERIES && DEBUG_FS
+ depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS
help
Adds code to keep track of the number of hypervisor calls made and
the amount of time spent in hypervisor calls. Wall time spent in
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index f1889abb89b1..c568329723b8 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -1683,7 +1683,7 @@ CONFIG_HAVE_ARCH_KGDB=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_PAGEALLOC is not set
-CONFIG_HCALL_STATS=y
+# CONFIG_HCALL_STATS is not set
# CONFIG_CODE_PATCHING_SELFTEST is not set
# CONFIG_FTR_FIXUP_SELFTEST is not set
# CONFIG_MSI_BITMAP_SELFTEST is not set
diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h
index ba667a383b8c..ab9e402518e8 100644
--- a/arch/powerpc/include/asm/cacheflush.h
+++ b/arch/powerpc/include/asm/cacheflush.h
@@ -25,6 +25,7 @@
#define flush_cache_vmap(start, end) do { } while (0)
#define flush_cache_vunmap(start, end) do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page *page);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
diff --git a/arch/powerpc/include/asm/emulated_ops.h b/arch/powerpc/include/asm/emulated_ops.h
index 9154e8526732..f0fb4fc1f6e6 100644
--- a/arch/powerpc/include/asm/emulated_ops.h
+++ b/arch/powerpc/include/asm/emulated_ops.h
@@ -19,6 +19,7 @@
#define _ASM_POWERPC_EMULATED_OPS_H
#include <asm/atomic.h>
+#include <linux/perf_event.h>
#ifdef CONFIG_PPC_EMULATED_STATS
@@ -57,7 +58,7 @@ extern u32 ppc_warn_emulated;
extern void ppc_warn_emulated_print(const char *type);
-#define PPC_WARN_EMULATED(type) \
+#define __PPC_WARN_EMULATED(type) \
do { \
atomic_inc(&ppc_emulated.type.val); \
if (ppc_warn_emulated) \
@@ -66,8 +67,22 @@ extern void ppc_warn_emulated_print(const char *type);
#else /* !CONFIG_PPC_EMULATED_STATS */
-#define PPC_WARN_EMULATED(type) do { } while (0)
+#define __PPC_WARN_EMULATED(type) do { } while (0)
#endif /* !CONFIG_PPC_EMULATED_STATS */
+#define PPC_WARN_EMULATED(type, regs) \
+ do { \
+ perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, \
+ 1, 0, regs, 0); \
+ __PPC_WARN_EMULATED(type); \
+ } while (0)
+
+#define PPC_WARN_ALIGNMENT(type, regs) \
+ do { \
+ perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, \
+ 1, 0, regs, regs->dar); \
+ __PPC_WARN_EMULATED(type); \
+ } while (0)
+
#endif /* _ASM_POWERPC_EMULATED_OPS_H */
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index 3bf38af7c834..f0275818b95c 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -287,6 +287,8 @@ struct hcall_stats {
unsigned long num_calls; /* number of calls (on this CPU) */
unsigned long tb_total; /* total wall time (mftb) of calls. */
unsigned long purr_total; /* total cpu time (PURR) of calls. */
+ unsigned long tb_start;
+ unsigned long purr_start;
};
#define HCALL_STAT_ARRAY_SIZE ((MAX_HCALL_OPCODE >> 2) + 1)
diff --git a/arch/powerpc/include/asm/pmac_low_i2c.h b/arch/powerpc/include/asm/pmac_low_i2c.h
index 131011bd7e76..01d71826d92f 100644
--- a/arch/powerpc/include/asm/pmac_low_i2c.h
+++ b/arch/powerpc/include/asm/pmac_low_i2c.h
@@ -72,11 +72,7 @@ extern int pmac_i2c_get_type(struct pmac_i2c_bus *bus);
extern int pmac_i2c_get_flags(struct pmac_i2c_bus *bus);
extern int pmac_i2c_get_channel(struct pmac_i2c_bus *bus);
-/* i2c layer adapter attach/detach */
-extern void pmac_i2c_attach_adapter(struct pmac_i2c_bus *bus,
- struct i2c_adapter *adapter);
-extern void pmac_i2c_detach_adapter(struct pmac_i2c_bus *bus,
- struct i2c_adapter *adapter);
+/* i2c layer adapter helpers */
extern struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus);
extern struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter);
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 6ff04185d2aa..2ab9cbd98826 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -1,3 +1,4 @@
+#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
#ifndef _POWERPC_PROM_H
#define _POWERPC_PROM_H
#ifdef __KERNEL__
@@ -16,6 +17,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/types.h>
+#include <linux/of_fdt.h>
#include <linux/proc_fs.h>
#include <linux/platform_device.h>
#include <asm/irq.h>
@@ -28,133 +30,14 @@
#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
-/* Definitions used by the flattened device tree */
-#define OF_DT_HEADER 0xd00dfeed /* marker */
-#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
-#define OF_DT_END_NODE 0x2 /* End node */
-#define OF_DT_PROP 0x3 /* Property: name off, size,
- * content */
-#define OF_DT_NOP 0x4 /* nop */
-#define OF_DT_END 0x9
-
-#define OF_DT_VERSION 0x10
-
-/*
- * This is what gets passed to the kernel by prom_init or kexec
- *
- * The dt struct contains the device tree structure, full pathes and
- * property contents. The dt strings contain a separate block with just
- * the strings for the property names, and is fully page aligned and
- * self contained in a page, so that it can be kept around by the kernel,
- * each property name appears only once in this page (cheap compression)
- *
- * the mem_rsvmap contains a map of reserved ranges of physical memory,
- * passing it here instead of in the device-tree itself greatly simplifies
- * the job of everybody. It's just a list of u64 pairs (base/size) that
- * ends when size is 0
- */
-struct boot_param_header
-{
- u32 magic; /* magic word OF_DT_HEADER */
- u32 totalsize; /* total size of DT block */
- u32 off_dt_struct; /* offset to structure */
- u32 off_dt_strings; /* offset to strings */
- u32 off_mem_rsvmap; /* offset to memory reserve map */
- u32 version; /* format version */
- u32 last_comp_version; /* last compatible version */
- /* version 2 fields below */
- u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
- /* version 3 fields below */
- u32 dt_strings_size; /* size of the DT strings block */
- /* version 17 fields below */
- u32 dt_struct_size; /* size of the DT structure block */
-};
-
-
-
-typedef u32 phandle;
-typedef u32 ihandle;
-
-struct property {
- char *name;
- int length;
- void *value;
- struct property *next;
-};
-
-struct device_node {
- const char *name;
- const char *type;
- phandle node;
- phandle linux_phandle;
- char *full_name;
-
- struct property *properties;
- struct property *deadprops; /* removed properties */
- struct device_node *parent;
- struct device_node *child;
- struct device_node *sibling;
- struct device_node *next; /* next device of same type */
- struct device_node *allnext; /* next in list of all nodes */
- struct proc_dir_entry *pde; /* this node's proc directory */
- struct kref kref;
- unsigned long _flags;
- void *data;
-};
-
extern struct device_node *of_chosen;
-static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
-{
- return test_bit(flag, &n->_flags);
-}
-
-static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
-{
- set_bit(flag, &n->_flags);
-}
-
-
#define HAVE_ARCH_DEVTREE_FIXUPS
-static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
-{
- dn->pde = de;
-}
-
-
-extern struct device_node *of_find_all_nodes(struct device_node *prev);
-extern struct device_node *of_node_get(struct device_node *node);
-extern void of_node_put(struct device_node *node);
-
-/* For scanning the flat device-tree at boot time */
-extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
- const char *uname, int depth,
- void *data),
- void *data);
-extern void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
- unsigned long *size);
-extern int __init of_flat_dt_is_compatible(unsigned long node, const char *name);
-extern unsigned long __init of_get_flat_dt_root(void);
-
/* For updating the device tree at runtime */
extern void of_attach_node(struct device_node *);
extern void of_detach_node(struct device_node *);
-/* Other Prototypes */
-extern void finish_device_tree(void);
-extern void unflatten_device_tree(void);
-extern void early_init_devtree(void *);
-extern int machine_is_compatible(const char *compat);
-extern void print_properties(struct device_node *node);
-extern int prom_n_intr_cells(struct device_node* np);
-extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
-extern int prom_add_property(struct device_node* np, struct property* prop);
-extern int prom_remove_property(struct device_node *np, struct property *prop);
-extern int prom_update_property(struct device_node *np,
- struct property *newprop,
- struct property *oldprop);
-
#ifdef CONFIG_PPC32
/*
* PCI <-> OF matching functions
@@ -178,26 +61,6 @@ extern int release_OF_resource(struct device_node* node, int index);
* OF address retreival & translation
*/
-
-/* Helper to read a big number; size is in cells (not bytes) */
-static inline u64 of_read_number(const u32 *cell, int size)
-{
- u64 r = 0;
- while (size--)
- r = (r << 32) | *(cell++);
- return r;
-}
-
-/* Like of_read_number, but we want an unsigned long result */
-#ifdef CONFIG_PPC32
-static inline unsigned long of_read_ulong(const u32 *cell, int size)
-{
- return cell[size-1];
-}
-#else
-#define of_read_ulong(cell, size) of_read_number(cell, size)
-#endif
-
/* Translate an OF address block into a CPU physical address
*/
extern u64 of_translate_address(struct device_node *np, const u32 *addr);
@@ -349,11 +212,5 @@ extern int of_irq_to_resource(struct device_node *dev, int index,
*/
extern void __iomem *of_iomap(struct device_node *device, int index);
-/*
- * NB: This is here while we transition from using asm/prom.h
- * to linux/of.h
- */
-#include <linux/of.h>
-
#endif /* __KERNEL__ */
#endif /* _POWERPC_PROM_H */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 6315edc205d8..bc8dd53f718a 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -489,6 +489,8 @@
#define SPRN_MMCR1 798
#define SPRN_MMCRA 0x312
#define MMCRA_SDSYNC 0x80000000UL /* SDAR synced with SIAR */
+#define MMCRA_SDAR_DCACHE_MISS 0x40000000UL
+#define MMCRA_SDAR_ERAT_MISS 0x20000000UL
#define MMCRA_SIHV 0x10000000UL /* state of MSR HV when SIAR set */
#define MMCRA_SIPR 0x08000000UL /* state of MSR PR when SIAR set */
#define MMCRA_SLOT 0x07000000UL /* SLOT bits (37-39) */
diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h
index 3ab8b3e6feb0..866f7606da68 100644
--- a/arch/powerpc/include/asm/socket.h
+++ b/arch/powerpc/include/asm/socket.h
@@ -67,4 +67,6 @@
#define SO_PROTOCOL 38
#define SO_DOMAIN 39
+#define SO_RXQ_OVFL 40
+
#endif /* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
new file mode 100644
index 000000000000..cbe2297d68b6
--- /dev/null
+++ b/arch/powerpc/include/asm/trace.h
@@ -0,0 +1,133 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM powerpc
+
+#if !defined(_TRACE_POWERPC_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_POWERPC_H
+
+#include <linux/tracepoint.h>
+
+struct pt_regs;
+
+TRACE_EVENT(irq_entry,
+
+ TP_PROTO(struct pt_regs *regs),
+
+ TP_ARGS(regs),
+
+ TP_STRUCT__entry(
+ __field(struct pt_regs *, regs)
+ ),
+
+ TP_fast_assign(
+ __entry->regs = regs;
+ ),
+
+ TP_printk("pt_regs=%p", __entry->regs)
+);
+
+TRACE_EVENT(irq_exit,
+
+ TP_PROTO(struct pt_regs *regs),
+
+ TP_ARGS(regs),
+
+ TP_STRUCT__entry(
+ __field(struct pt_regs *, regs)
+ ),
+
+ TP_fast_assign(
+ __entry->regs = regs;
+ ),
+
+ TP_printk("pt_regs=%p", __entry->regs)
+);
+
+TRACE_EVENT(timer_interrupt_entry,
+
+ TP_PROTO(struct pt_regs *regs),
+
+ TP_ARGS(regs),
+
+ TP_STRUCT__entry(
+ __field(struct pt_regs *, regs)
+ ),
+
+ TP_fast_assign(
+ __entry->regs = regs;
+ ),
+
+ TP_printk("pt_regs=%p", __entry->regs)
+);
+
+TRACE_EVENT(timer_interrupt_exit,
+
+ TP_PROTO(struct pt_regs *regs),
+
+ TP_ARGS(regs),
+
+ TP_STRUCT__entry(
+ __field(struct pt_regs *, regs)
+ ),
+
+ TP_fast_assign(
+ __entry->regs = regs;
+ ),
+
+ TP_printk("pt_regs=%p", __entry->regs)
+);
+
+#ifdef CONFIG_PPC_PSERIES
+extern void hcall_tracepoint_regfunc(void);
+extern void hcall_tracepoint_unregfunc(void);
+
+TRACE_EVENT_FN(hcall_entry,
+
+ TP_PROTO(unsigned long opcode, unsigned long *args),
+
+ TP_ARGS(opcode, args),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, opcode)
+ ),
+
+ TP_fast_assign(
+ __entry->opcode = opcode;
+ ),
+
+ TP_printk("opcode=%lu", __entry->opcode),
+
+ hcall_tracepoint_regfunc, hcall_tracepoint_unregfunc
+);
+
+TRACE_EVENT_FN(hcall_exit,
+
+ TP_PROTO(unsigned long opcode, unsigned long retval,
+ unsigned long *retbuf),
+
+ TP_ARGS(opcode, retval, retbuf),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, opcode)
+ __field(unsigned long, retval)
+ ),
+
+ TP_fast_assign(
+ __entry->opcode = opcode;
+ __entry->retval = retval;
+ ),
+
+ TP_printk("opcode=%lu retval=%lu", __entry->opcode, __entry->retval),
+
+ hcall_tracepoint_regfunc, hcall_tracepoint_unregfunc
+);
+#endif
+
+#endif /* _TRACE_POWERPC_H */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH asm
+#define TRACE_INCLUDE_FILE trace
+
+#include <trace/define_trace.h>
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index a5b632e52fae..3839839f83c7 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -732,7 +732,7 @@ int fix_alignment(struct pt_regs *regs)
#ifdef CONFIG_SPE
if ((instr >> 26) == 0x4) {
- PPC_WARN_EMULATED(spe);
+ PPC_WARN_ALIGNMENT(spe, regs);
return emulate_spe(regs, reg, instr);
}
#endif
@@ -786,7 +786,7 @@ int fix_alignment(struct pt_regs *regs)
flags |= SPLT;
nb = 8;
}
- PPC_WARN_EMULATED(vsx);
+ PPC_WARN_ALIGNMENT(vsx, regs);
return emulate_vsx(addr, reg, areg, regs, flags, nb);
}
#endif
@@ -794,7 +794,7 @@ int fix_alignment(struct pt_regs *regs)
* the exception of DCBZ which is handled as a special case here
*/
if (instr == DCBZ) {
- PPC_WARN_EMULATED(dcbz);
+ PPC_WARN_ALIGNMENT(dcbz, regs);
return emulate_dcbz(regs, addr);
}
if (unlikely(nb == 0))
@@ -804,7 +804,7 @@ int fix_alignment(struct pt_regs *regs)
* function
*/
if (flags & M) {
- PPC_WARN_EMULATED(multiple);
+ PPC_WARN_ALIGNMENT(multiple, regs);
return emulate_multiple(regs, addr, reg, nb,
flags, instr, swiz);
}
@@ -825,11 +825,11 @@ int fix_alignment(struct pt_regs *regs)
/* Special case for 16-byte FP loads and stores */
if (nb == 16) {
- PPC_WARN_EMULATED(fp_pair);
+ PPC_WARN_ALIGNMENT(fp_pair, regs);
return emulate_fp_pair(addr, reg, flags);
}
- PPC_WARN_EMULATED(unaligned);
+ PPC_WARN_ALIGNMENT(unaligned, regs);
/* If we are loading, get the data from user space, else
* get it from register values
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 9763267e38b4..bdcb557d470a 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -551,7 +551,7 @@ restore:
BEGIN_FW_FTR_SECTION
ld r5,SOFTE(r1)
FW_FTR_SECTION_ELSE
- b iseries_check_pending_irqs
+ b .Liseries_check_pending_irqs
ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
2:
TRACE_AND_RESTORE_IRQ(r5);
@@ -623,7 +623,7 @@ ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
#endif /* CONFIG_PPC_BOOK3E */
-iseries_check_pending_irqs:
+.Liseries_check_pending_irqs:
#ifdef CONFIG_PPC_ISERIES
ld r5,SOFTE(r1)
cmpdi 0,r5,0
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index fc3ead066cec..e3be98ffe2a7 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -190,14 +190,17 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE)
* prolog code of the PerformanceMonitor one. A little
* trickery is thus necessary
*/
+performance_monitor_pSeries_1:
. = 0xf00
DO_KVM 0xf00
b performance_monitor_pSeries
+altivec_unavailable_pSeries_1:
. = 0xf20
DO_KVM 0xf20
b altivec_unavailable_pSeries
+vsx_unavailable_pSeries_1:
. = 0xf40
DO_KVM 0xf40
b vsx_unavailable_pSeries
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 88d9c1d5e5fb..049dda60e475 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -110,18 +110,16 @@ int powersave_nap;
*/
static ctl_table powersave_nap_ctl_table[]={
{
- .ctl_name = KERN_PPC_POWERSAVE_NAP,
.procname = "powersave-nap",
.data = &powersave_nap,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{}
};
static ctl_table powersave_nap_sysctl_root[] = {
{
- .ctl_name = CTL_KERN,
.procname = "kernel",
.mode = 0555,
.child = powersave_nap_ctl_table,
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 042a53009701..f6dca4f4b295 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -70,6 +70,8 @@
#include <asm/firmware.h>
#include <asm/lv1call.h>
#endif
+#define CREATE_TRACE_POINTS
+#include <asm/trace.h>
int __irq_offset_value;
static int ppc_spurious_interrupts;
@@ -340,6 +342,8 @@ void do_IRQ(struct pt_regs *regs)
struct pt_regs *old_regs = set_irq_regs(regs);
unsigned int irq;
+ trace_irq_entry(regs);
+
irq_enter();
check_stack_overflow();
@@ -363,6 +367,8 @@ void do_IRQ(struct pt_regs *regs)
timer_interrupt(regs);
}
#endif
+
+ trace_irq_exit(regs);
}
void __init init_IRQ(void)
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index 87f1663584b0..1eb85fbf53a5 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -1165,7 +1165,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
*/
if (record) {
struct perf_sample_data data = {
- .addr = 0,
+ .addr = ~0ULL,
.period = event->hw.last_period,
};
diff --git a/arch/powerpc/kernel/power5+-pmu.c b/arch/powerpc/kernel/power5+-pmu.c
index 0f4c1c73a6ad..199de527d411 100644
--- a/arch/powerpc/kernel/power5+-pmu.c
+++ b/arch/powerpc/kernel/power5+-pmu.c
@@ -73,10 +73,6 @@
#define MMCR1_PMCSEL_MSK 0x7f
/*
- * Bits in MMCRA
- */
-
-/*
* Layout of constraint bits:
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
diff --git a/arch/powerpc/kernel/power5-pmu.c b/arch/powerpc/kernel/power5-pmu.c
index c351b3a57fbb..98b6a729a9dd 100644
--- a/arch/powerpc/kernel/power5-pmu.c
+++ b/arch/powerpc/kernel/power5-pmu.c
@@ -73,10 +73,6 @@
#define MMCR1_PMCSEL_MSK 0x7f
/*
- * Bits in MMCRA
- */
-
-/*
* Layout of constraint bits:
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
@@ -390,7 +386,7 @@ static int power5_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], unsigned long mmcr[])
{
unsigned long mmcr1 = 0;
- unsigned long mmcra = 0;
+ unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;
unsigned int pmc, unit, byte, psel;
unsigned int ttm, grp;
int i, isbus, bit, grsel;
diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/kernel/power6-pmu.c
index ca399ba5034c..84a607bda8fb 100644
--- a/arch/powerpc/kernel/power6-pmu.c
+++ b/arch/powerpc/kernel/power6-pmu.c
@@ -178,7 +178,7 @@ static int p6_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], unsigned long mmcr[])
{
unsigned long mmcr1 = 0;
- unsigned long mmcra = 0;
+ unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;
int i;
unsigned int pmc, ev, b, u, s, psel;
unsigned int ttmset = 0;
diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c
index 28a4daacdc02..852f7b7f6b40 100644
--- a/arch/powerpc/kernel/power7-pmu.c
+++ b/arch/powerpc/kernel/power7-pmu.c
@@ -51,10 +51,6 @@
#define MMCR1_PMCSEL_MSK 0xff
/*
- * Bits in MMCRA
- */
-
-/*
* Layout of constraint bits:
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
@@ -230,7 +226,7 @@ static int power7_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], unsigned long mmcr[])
{
unsigned long mmcr1 = 0;
- unsigned long mmcra = 0;
+ unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;
unsigned int pmc, unit, combine, l2sel, psel;
unsigned int pmc_inuse = 0;
int i;
diff --git a/arch/powerpc/kernel/ppc970-pmu.c b/arch/powerpc/kernel/ppc970-pmu.c
index 479574413a93..8eff48e20dba 100644
--- a/arch/powerpc/kernel/ppc970-pmu.c
+++ b/arch/powerpc/kernel/ppc970-pmu.c
@@ -84,10 +84,6 @@ static short mmcr1_adder_bits[8] = {
};
/*
- * Bits in MMCRA
- */
-
-/*
* Layout of constraint bits:
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index d4405b95bfaa..4ec300862466 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1317,29 +1317,6 @@ struct device_node *of_find_next_cache_node(struct device_node *np)
}
/**
- * of_find_all_nodes - Get next node in global list
- * @prev: Previous node or NULL to start iteration
- * of_node_put() will be called on it
- *
- * Returns a node pointer with refcount incremented, use
- * of_node_put() on it when done.
- */
-struct device_node *of_find_all_nodes(struct device_node *prev)
-{
- struct device_node *np;
-
- read_lock(&devtree_lock);
- np = prev ? prev->allnext : allnodes;
- for (; np != 0; np = np->allnext)
- if (of_node_get(np))
- break;
- of_node_put(prev);
- read_unlock(&devtree_lock);
- return np;
-}
-EXPORT_SYMBOL(of_find_all_nodes);
-
-/**
* of_node_get - Increment refcount of a node
* @node: Node to inc refcount, NULL is supported to
* simplify writing of callers
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 4271f7a655a3..845c72ab7357 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -660,6 +660,7 @@ late_initcall(check_cache_coherency);
#ifdef CONFIG_DEBUG_FS
struct dentry *powerpc_debugfs_root;
+EXPORT_SYMBOL(powerpc_debugfs_root);
static int powerpc_debugfs_init(void)
{
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 53bcf3d792db..b152de3e64d4 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -345,7 +345,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_SWIOTLB
if (ppc_swiotlb_enable)
- swiotlb_init();
+ swiotlb_init(1);
#endif
paging_init();
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index fd785f7a279b..6568406b2a30 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -545,7 +545,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_SWIOTLB
if (ppc_swiotlb_enable)
- swiotlb_init();
+ swiotlb_init(1);
#endif
paging_init();
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index b97c2d67f4ac..c5a4732bcc48 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -520,58 +520,6 @@ asmlinkage long compat_sys_umask(u32 mask)
return sys_umask((int)mask);
}
-#ifdef CONFIG_SYSCTL_SYSCALL
-struct __sysctl_args32 {
- u32 name;
- int nlen;
- u32 oldval;
- u32 oldlenp;
- u32 newval;
- u32 newlen;
- u32 __unused[4];
-};
-
-asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args)
-{
- struct __sysctl_args32 tmp;
- int error;
- size_t oldlen;
- size_t __user *oldlenp = NULL;
- unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
-
- if (copy_from_user(&tmp, args, sizeof(tmp)))
- return -EFAULT;
-
- if (tmp.oldval && tmp.oldlenp) {
- /* Duh, this is ugly and might not work if sysctl_args
- is in read-only memory, but do_sysctl does indirectly
- a lot of uaccess in both directions and we'd have to
- basically copy the whole sysctl.c here, and
- glibc's __sysctl uses rw memory for the structure
- anyway. */
- oldlenp = (size_t __user *)addr;
- if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) ||
- put_user(oldlen, oldlenp))
- return -EFAULT;
- }
-
- lock_kernel();
- error = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
- compat_ptr(tmp.oldval), oldlenp,
- compat_ptr(tmp.newval), tmp.newlen);
- unlock_kernel();
- if (oldlenp) {
- if (!error) {
- if (get_user(oldlen, oldlenp) ||
- put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)))
- error = -EFAULT;
- }
- copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
- }
- return error;
-}
-#endif
-
unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 6c9e20898fa7..e9af16cc7c0c 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -54,6 +54,7 @@
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/perf_event.h>
+#include <asm/trace.h>
#include <asm/io.h>
#include <asm/processor.h>
@@ -572,6 +573,8 @@ void timer_interrupt(struct pt_regs * regs)
struct clock_event_device *evt = &decrementer->event;
u64 now;
+ trace_timer_interrupt_entry(regs);
+
/* Ensure a positive value is written to the decrementer, or else
* some CPUs will continuue to take decrementer exceptions */
set_dec(DECREMENTER_MAX);
@@ -591,6 +594,7 @@ void timer_interrupt(struct pt_regs * regs)
now = decrementer->next_tb - now;
if (now <= DECREMENTER_MAX)
set_dec((int)now);
+ trace_timer_interrupt_exit(regs);
return;
}
old_regs = set_irq_regs(regs);
@@ -621,6 +625,8 @@ void timer_interrupt(struct pt_regs * regs)
irq_exit();
set_irq_regs(old_regs);
+
+ trace_timer_interrupt_exit(regs);
}
void wakeup_decrementer(void)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index a81c7438d341..804f0f30f227 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -737,7 +737,7 @@ static int emulate_instruction(struct pt_regs *regs)
/* Emulate the mfspr rD, PVR. */
if ((instword & PPC_INST_MFSPR_PVR_MASK) == PPC_INST_MFSPR_PVR) {
- PPC_WARN_EMULATED(mfpvr);
+ PPC_WARN_EMULATED(mfpvr, regs);
rd = (instword >> 21) & 0x1f;
regs->gpr[rd] = mfspr(SPRN_PVR);
return 0;
@@ -745,7 +745,7 @@ static int emulate_instruction(struct pt_regs *regs)
/* Emulating the dcba insn is just a no-op. */
if ((instword & PPC_INST_DCBA_MASK) == PPC_INST_DCBA) {
- PPC_WARN_EMULATED(dcba);
+ PPC_WARN_EMULATED(dcba, regs);
return 0;
}
@@ -754,7 +754,7 @@ static int emulate_instruction(struct pt_regs *regs)
int shift = (instword >> 21) & 0x1c;
unsigned long msk = 0xf0000000UL >> shift;
- PPC_WARN_EMULATED(mcrxr);
+ PPC_WARN_EMULATED(mcrxr, regs);
regs->ccr = (regs->ccr & ~msk) | ((regs->xer >> shift) & msk);
regs->xer &= ~0xf0000000UL;
return 0;
@@ -762,19 +762,19 @@ static int emulate_instruction(struct pt_regs *regs)
/* Emulate load/store string insn. */
if ((instword & PPC_INST_STRING_GEN_MASK) == PPC_INST_STRING) {
- PPC_WARN_EMULATED(string);
+ PPC_WARN_EMULATED(string, regs);
return emulate_string_inst(regs, instword);
}
/* Emulate the popcntb (Population Count Bytes) instruction. */
if ((instword & PPC_INST_POPCNTB_MASK) == PPC_INST_POPCNTB) {
- PPC_WARN_EMULATED(popcntb);
+ PPC_WARN_EMULATED(popcntb, regs);
return emulate_popcntb_inst(regs, instword);
}
/* Emulate isel (Integer Select) instruction */
if ((instword & PPC_INST_ISEL_MASK) == PPC_INST_ISEL) {
- PPC_WARN_EMULATED(isel);
+ PPC_WARN_EMULATED(isel, regs);
return emulate_isel(regs, instword);
}
@@ -973,7 +973,7 @@ void SoftwareEmulation(struct pt_regs *regs)
#ifdef CONFIG_MATH_EMULATION
errcode = do_mathemu(regs);
if (errcode >= 0)
- PPC_WARN_EMULATED(math);
+ PPC_WARN_EMULATED(math, regs);
switch (errcode) {
case 0:
@@ -996,7 +996,7 @@ void SoftwareEmulation(struct pt_regs *regs)
#elif defined(CONFIG_8XX_MINIMAL_FPEMU)
errcode = Soft_emulate_8xx(regs);
if (errcode >= 0)
- PPC_WARN_EMULATED(8xx);
+ PPC_WARN_EMULATED(8xx, regs);
switch (errcode) {
case 0:
@@ -1107,7 +1107,7 @@ void altivec_assist_exception(struct pt_regs *regs)
flush_altivec_to_thread(current);
- PPC_WARN_EMULATED(altivec);
+ PPC_WARN_EMULATED(altivec, regs);
err = emulate_altivec(regs);
if (err == 0) {
regs->nip += 4; /* skip emulated instruction */
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index d82551efbfbf..f06cf93b178e 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -79,8 +79,9 @@ int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
return r;
}
-void kvm_arch_hardware_enable(void *garbage)
+int kvm_arch_hardware_enable(void *garbage)
{
+ return 0;
}
void kvm_arch_hardware_disable(void *garbage)
@@ -435,7 +436,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
switch (ioctl) {
default:
- r = -EINVAL;
+ r = -ENOTTY;
}
return r;
diff --git a/arch/powerpc/kvm/timing.h b/arch/powerpc/kvm/timing.h
index 806ef67868bd..8167d42a776f 100644
--- a/arch/powerpc/kvm/timing.h
+++ b/arch/powerpc/kvm/timing.h
@@ -51,7 +51,7 @@ static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
/* The BUILD_BUG_ON below breaks in funny ways, commented out
* for now ... -BenH
- BUILD_BUG_ON(__builtin_constant_p(type));
+ BUILD_BUG_ON(!__builtin_constant_p(type));
*/
switch (type) {
case EXT_INTR_EXITS:
diff --git a/arch/powerpc/lib/copypage_64.S b/arch/powerpc/lib/copypage_64.S
index 75f3267fdc30..e68beac0a171 100644
--- a/arch/powerpc/lib/copypage_64.S
+++ b/arch/powerpc/lib/copypage_64.S
@@ -26,11 +26,11 @@ BEGIN_FTR_SECTION
srd r8,r5,r11
mtctr r8
-setup:
+.Lsetup:
dcbt r9,r4
dcbz r9,r3
add r9,r9,r12
- bdnz setup
+ bdnz .Lsetup
END_FTR_SECTION_IFSET(CPU_FTR_CP_USE_DCBTZ)
addi r3,r3,-8
srdi r8,r5,7 /* page is copied in 128 byte strides */
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 414ca9849f23..345e2da56767 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -42,6 +42,7 @@
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/mutex.h>
+#include <linux/i2c.h>
#include <asm/keylargo.h>
#include <asm/uninorth.h>
#include <asm/io.h>
@@ -80,7 +81,7 @@ struct pmac_i2c_bus
struct device_node *busnode;
int type;
int flags;
- struct i2c_adapter *adapter;
+ struct i2c_adapter adapter;
void *hostdata;
int channel; /* some hosts have multiple */
int mode; /* current mode */
@@ -1014,25 +1015,9 @@ int pmac_i2c_get_channel(struct pmac_i2c_bus *bus)
EXPORT_SYMBOL_GPL(pmac_i2c_get_channel);
-void pmac_i2c_attach_adapter(struct pmac_i2c_bus *bus,
- struct i2c_adapter *adapter)
-{
- WARN_ON(bus->adapter != NULL);
- bus->adapter = adapter;
-}
-EXPORT_SYMBOL_GPL(pmac_i2c_attach_adapter);
-
-void pmac_i2c_detach_adapter(struct pmac_i2c_bus *bus,
- struct i2c_adapter *adapter)
-{
- WARN_ON(bus->adapter != adapter);
- bus->adapter = NULL;
-}
-EXPORT_SYMBOL_GPL(pmac_i2c_detach_adapter);
-
struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus)
{
- return bus->adapter;
+ return &bus->adapter;
}
EXPORT_SYMBOL_GPL(pmac_i2c_get_adapter);
@@ -1041,7 +1026,7 @@ struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter)
struct pmac_i2c_bus *bus;
list_for_each_entry(bus, &pmac_i2c_busses, link)
- if (bus->adapter == adapter)
+ if (&bus->adapter == adapter)
return bus;
return NULL;
}
@@ -1053,7 +1038,7 @@ int pmac_i2c_match_adapter(struct device_node *dev, struct i2c_adapter *adapter)
if (bus == NULL)
return 0;
- return (bus->adapter == adapter);
+ return (&bus->adapter == adapter);
}
EXPORT_SYMBOL_GPL(pmac_i2c_match_adapter);
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index c1427b3634ec..383a5d0e9818 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -14,68 +14,94 @@
#define STK_PARM(i) (48 + ((i)-3)*8)
-#ifdef CONFIG_HCALL_STATS
+#ifdef CONFIG_TRACEPOINTS
+
+ .section ".toc","aw"
+
+ .globl hcall_tracepoint_refcount
+hcall_tracepoint_refcount:
+ .llong 0
+
+ .section ".text"
+
/*
* precall must preserve all registers. use unused STK_PARM()
- * areas to save snapshots and opcode.
+ * areas to save snapshots and opcode. We branch around this
+ * in early init (eg when populating the MMU hashtable) by using an
+ * unconditional cpu feature.
*/
-#define HCALL_INST_PRECALL \
- std r3,STK_PARM(r3)(r1); /* save opcode */ \
- mftb r0; /* get timebase and */ \
- std r0,STK_PARM(r5)(r1); /* save for later */ \
+#define HCALL_INST_PRECALL(FIRST_REG) \
BEGIN_FTR_SECTION; \
- mfspr r0,SPRN_PURR; /* get PURR and */ \
- std r0,STK_PARM(r6)(r1); /* save for later */ \
-END_FTR_SECTION_IFSET(CPU_FTR_PURR);
-
+ b 1f; \
+END_FTR_SECTION(0, 1); \
+ ld r12,hcall_tracepoint_refcount@toc(r2); \
+ cmpdi r12,0; \
+ beq+ 1f; \
+ mflr r0; \
+ std r3,STK_PARM(r3)(r1); \
+ std r4,STK_PARM(r4)(r1); \
+ std r5,STK_PARM(r5)(r1); \
+ std r6,STK_PARM(r6)(r1); \
+ std r7,STK_PARM(r7)(r1); \
+ std r8,STK_PARM(r8)(r1); \
+ std r9,STK_PARM(r9)(r1); \
+ std r10,STK_PARM(r10)(r1); \
+ std r0,16(r1); \
+ addi r4,r1,STK_PARM(FIRST_REG); \
+ stdu r1,-STACK_FRAME_OVERHEAD(r1); \
+ bl .__trace_hcall_entry; \
+ addi r1,r1,STACK_FRAME_OVERHEAD; \
+ ld r0,16(r1); \
+ ld r3,STK_PARM(r3)(r1); \
+ ld r4,STK_PARM(r4)(r1); \
+ ld r5,STK_PARM(r5)(r1); \
+ ld r6,STK_PARM(r6)(r1); \
+ ld r7,STK_PARM(r7)(r1); \
+ ld r8,STK_PARM(r8)(r1); \
+ ld r9,STK_PARM(r9)(r1); \
+ ld r10,STK_PARM(r10)(r1); \
+ mtlr r0; \
+1:
+
/*
* postcall is performed immediately before function return which
* allows liberal use of volatile registers. We branch around this
* in early init (eg when populating the MMU hashtable) by using an
* unconditional cpu feature.
*/
-#define HCALL_INST_POSTCALL \
+#define __HCALL_INST_POSTCALL \
BEGIN_FTR_SECTION; \
b 1f; \
END_FTR_SECTION(0, 1); \
- ld r4,STK_PARM(r3)(r1); /* validate opcode */ \
- cmpldi cr7,r4,MAX_HCALL_OPCODE; \
- bgt- cr7,1f; \
- \
- /* get time and PURR snapshots after hcall */ \
- mftb r7; /* timebase after */ \
-BEGIN_FTR_SECTION; \
- mfspr r8,SPRN_PURR; /* PURR after */ \
- ld r6,STK_PARM(r6)(r1); /* PURR before */ \
- subf r6,r6,r8; /* delta */ \
-END_FTR_SECTION_IFSET(CPU_FTR_PURR); \
- ld r5,STK_PARM(r5)(r1); /* timebase before */ \
- subf r5,r5,r7; /* time delta */ \
- \
- /* calculate address of stat structure r4 = opcode */ \
- srdi r4,r4,2; /* index into array */ \
- mulli r4,r4,HCALL_STAT_SIZE; \
- LOAD_REG_ADDR(r7, per_cpu__hcall_stats); \
- add r4,r4,r7; \
- ld r7,PACA_DATA_OFFSET(r13); /* per cpu offset */ \
- add r4,r4,r7; \
- \
- /* update stats */ \
- ld r7,HCALL_STAT_CALLS(r4); /* count */ \
- addi r7,r7,1; \
- std r7,HCALL_STAT_CALLS(r4); \
- ld r7,HCALL_STAT_TB(r4); /* timebase */ \
- add r7,r7,r5; \
- std r7,HCALL_STAT_TB(r4); \
-BEGIN_FTR_SECTION; \
- ld r7,HCALL_STAT_PURR(r4); /* PURR */ \
- add r7,r7,r6; \
- std r7,HCALL_STAT_PURR(r4); \
-END_FTR_SECTION_IFSET(CPU_FTR_PURR); \
+ ld r12,hcall_tracepoint_refcount@toc(r2); \
+ cmpdi r12,0; \
+ beq+ 1f; \
+ mflr r0; \
+ ld r6,STK_PARM(r3)(r1); \
+ std r3,STK_PARM(r3)(r1); \
+ mr r4,r3; \
+ mr r3,r6; \
+ std r0,16(r1); \
+ stdu r1,-STACK_FRAME_OVERHEAD(r1); \
+ bl .__trace_hcall_exit; \
+ addi r1,r1,STACK_FRAME_OVERHEAD; \
+ ld r0,16(r1); \
+ ld r3,STK_PARM(r3)(r1); \
+ mtlr r0; \
1:
+
+#define HCALL_INST_POSTCALL_NORETS \
+ li r5,0; \
+ __HCALL_INST_POSTCALL
+
+#define HCALL_INST_POSTCALL(BUFREG) \
+ mr r5,BUFREG; \
+ __HCALL_INST_POSTCALL
+
#else
-#define HCALL_INST_PRECALL
-#define HCALL_INST_POSTCALL
+#define HCALL_INST_PRECALL(FIRST_ARG)
+#define HCALL_INST_POSTCALL_NORETS
+#define HCALL_INST_POSTCALL(BUFREG)
#endif
.text
@@ -86,11 +112,11 @@ _GLOBAL(plpar_hcall_norets)
mfcr r0
stw r0,8(r1)
- HCALL_INST_PRECALL
+ HCALL_INST_PRECALL(r4)
HVSC /* invoke the hypervisor */
- HCALL_INST_POSTCALL
+ HCALL_INST_POSTCALL_NORETS
lwz r0,8(r1)
mtcrf 0xff,r0
@@ -102,7 +128,7 @@ _GLOBAL(plpar_hcall)
mfcr r0
stw r0,8(r1)
- HCALL_INST_PRECALL
+ HCALL_INST_PRECALL(r5)
std r4,STK_PARM(r4)(r1) /* Save ret buffer */
@@ -121,7 +147,7 @@ _GLOBAL(plpar_hcall)
std r6, 16(r12)
std r7, 24(r12)
- HCALL_INST_POSTCALL
+ HCALL_INST_POSTCALL(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
@@ -168,7 +194,7 @@ _GLOBAL(plpar_hcall9)
mfcr r0
stw r0,8(r1)
- HCALL_INST_PRECALL
+ HCALL_INST_PRECALL(r5)
std r4,STK_PARM(r4)(r1) /* Save ret buffer */
@@ -196,7 +222,7 @@ _GLOBAL(plpar_hcall9)
std r11,56(r12)
std r0, 64(r12)
- HCALL_INST_POSTCALL
+ HCALL_INST_POSTCALL(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c
index 3631a4f277eb..2f58c71b7259 100644
--- a/arch/powerpc/platforms/pseries/hvCall_inst.c
+++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -26,6 +26,7 @@
#include <asm/hvcall.h>
#include <asm/firmware.h>
#include <asm/cputable.h>
+#include <asm/trace.h>
DEFINE_PER_CPU(struct hcall_stats[HCALL_STAT_ARRAY_SIZE], hcall_stats);
@@ -100,6 +101,35 @@ static const struct file_operations hcall_inst_seq_fops = {
#define HCALL_ROOT_DIR "hcall_inst"
#define CPU_NAME_BUF_SIZE 32
+
+static void probe_hcall_entry(unsigned long opcode, unsigned long *args)
+{
+ struct hcall_stats *h;
+
+ if (opcode > MAX_HCALL_OPCODE)
+ return;
+
+ h = &get_cpu_var(hcall_stats)[opcode / 4];
+ h->tb_start = mftb();
+ h->purr_start = mfspr(SPRN_PURR);
+}
+
+static void probe_hcall_exit(unsigned long opcode, unsigned long retval,
+ unsigned long *retbuf)
+{
+ struct hcall_stats *h;
+
+ if (opcode > MAX_HCALL_OPCODE)
+ return;
+
+ h = &__get_cpu_var(hcall_stats)[opcode / 4];
+ h->num_calls++;
+ h->tb_total = mftb() - h->tb_start;
+ h->purr_total = mfspr(SPRN_PURR) - h->purr_start;
+
+ put_cpu_var(hcall_stats);
+}
+
static int __init hcall_inst_init(void)
{
struct dentry *hcall_root;
@@ -110,6 +140,14 @@ static int __init hcall_inst_init(void)
if (!firmware_has_feature(FW_FEATURE_LPAR))
return 0;
+ if (register_trace_hcall_entry(probe_hcall_entry))
+ return -EINVAL;
+
+ if (register_trace_hcall_exit(probe_hcall_exit)) {
+ unregister_trace_hcall_entry(probe_hcall_entry);
+ return -EINVAL;
+ }
+
hcall_root = debugfs_create_dir(HCALL_ROOT_DIR, NULL);
if (!hcall_root)
return -ENOMEM;
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 903eb9eec687..0707653612ba 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -39,6 +39,7 @@
#include <asm/cputable.h>
#include <asm/udbg.h>
#include <asm/smp.h>
+#include <asm/trace.h>
#include "plpar_wrappers.h"
#include "pseries.h"
@@ -661,3 +662,35 @@ void arch_free_page(struct page *page, int order)
EXPORT_SYMBOL(arch_free_page);
#endif
+
+#ifdef CONFIG_TRACEPOINTS
+/*
+ * We optimise our hcall path by placing hcall_tracepoint_refcount
+ * directly in the TOC so we can check if the hcall tracepoints are
+ * enabled via a single load.
+ */
+
+/* NB: reg/unreg are called while guarded with the tracepoints_mutex */
+extern long hcall_tracepoint_refcount;
+
+void hcall_tracepoint_regfunc(void)
+{
+ hcall_tracepoint_refcount++;
+}
+
+void hcall_tracepoint_unregfunc(void)
+{
+ hcall_tracepoint_refcount--;
+}
+
+void __trace_hcall_entry(unsigned long opcode, unsigned long *args)
+{
+ trace_hcall_entry(opcode, args);
+}
+
+void __trace_hcall_exit(long opcode, unsigned long retval,
+ unsigned long *retbuf)
+{
+ trace_hcall_exit(opcode, retval, retbuf);
+}
+#endif
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