mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-06 04:14:13 +08:00
powerpc/perf: Add macros for defining event fields & formats
Add two macros which generate functions to extract the relevent bits from event->attr.config{,1,2}. EVENT_DEFINE_RANGE() defines an accessor for a range of bits in the event, as well as a "max" function that gives the maximum value of the field based on the bit width. EVENT_DEFINE_RANGE_FORMAT() defines the accessor & max routine and also a format attribute for use in the PMU's attr_groups. Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> [mpe: move to powerpc, ugly but descriptive macro names] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
parent
2d1b21ad7d
commit
7b43c67950
@ -1,6 +1,7 @@
|
||||
#ifndef LINUX_POWERPC_PERF_HV_COMMON_H_
|
||||
#define LINUX_POWERPC_PERF_HV_COMMON_H_
|
||||
|
||||
#include <linux/perf_event.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
struct hv_perf_caps {
|
||||
@ -14,4 +15,22 @@ struct hv_perf_caps {
|
||||
|
||||
unsigned long hv_perf_caps_get(struct hv_perf_caps *caps);
|
||||
|
||||
|
||||
#define EVENT_DEFINE_RANGE_FORMAT(name, attr_var, bit_start, bit_end) \
|
||||
PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end); \
|
||||
EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)
|
||||
|
||||
#define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end) \
|
||||
static u64 event_get_##name##_max(void) \
|
||||
{ \
|
||||
BUILD_BUG_ON((bit_start > bit_end) \
|
||||
|| (bit_end >= (sizeof(1ull) * 8))); \
|
||||
return (((1ull << (bit_end - bit_start)) - 1) << 1) + 1; \
|
||||
} \
|
||||
static u64 event_get_##name(struct perf_event *event) \
|
||||
{ \
|
||||
return (event->attr.attr_var >> (bit_start)) & \
|
||||
event_get_##name##_max(); \
|
||||
}
|
||||
|
||||
#endif
|
||||
|
Loading…
Reference in New Issue
Block a user