[deliverable/linux.git] / arch / powerpc / perf / req-gen / perf.h

#ifndef LINUX_POWERPC_PERF_REQ_GEN_PERF_H_
#define LINUX_POWERPC_PERF_REQ_GEN_PERF_H_

#include <linux/perf_event.h>

#ifndef REQUEST_FILE
#error "REQUEST_FILE must be defined before including"
#endif

#ifndef NAME_LOWER
#error "NAME_LOWER must be defined before including"
#endif

#ifndef NAME_UPPER
#error "NAME_UPPER must be defined before including"
#endif

#define BE_TYPE_b1 __u8
#define BE_TYPE_b2 __be16
#define BE_TYPE_b4 __be32
#define BE_TYPE_b8 __be64

#define BYTES_TO_BE_TYPE(bytes) \
		BE_TYPE_b##bytes

#define CAT2_(a, b) a ## b
#define CAT2(a, b) CAT2_(a, b)
#define CAT3_(a, b, c) a ## b ## c
#define CAT3(a, b, c) CAT3_(a, b, c)

/*
 * enumerate the request values as
 * <NAME_UPPER>_<request name> = <request value>
 */
#define REQUEST_VALUE__(name_upper, r_name) name_upper ## _ ## r_name
#define REQUEST_VALUE_(name_upper, r_name) REQUEST_VALUE__(name_upper, r_name)
#define REQUEST_VALUE(r_name) REQUEST_VALUE_(NAME_UPPER, r_name)

#include "_clear.h"
#define REQUEST_(r_name, r_value, r_idx_1, r_fields) \
	REQUEST_VALUE(r_name) = r_value,
enum CAT2(NAME_LOWER, _requests) {
#include REQUEST_FILE
};

/*
 * For each request:
 * struct <NAME_LOWER>_<request name> {
 *	r_fields
 * };
 */
#include "_clear.h"
#define STRUCT_NAME__(name_lower, r_name) name_lower ## _ ## r_name
#define STRUCT_NAME_(name_lower, r_name) STRUCT_NAME__(name_lower, r_name)
#define STRUCT_NAME(r_name) STRUCT_NAME_(NAME_LOWER, r_name)
#define REQUEST_(r_name, r_value, r_idx_1, r_fields)	\
struct STRUCT_NAME(r_name) {				\
	r_fields					\
};
#define __field_(r_name, r_value, r_idx_1, f_offset, f_bytes, f_name) \
	BYTES_TO_BE_TYPE(f_bytes) f_name;
#define __count_(r_name, r_value, r_idx_1, f_offset, f_bytes, f_name) \
	__field_(r_name, r_value, r_idx_1, f_offset, f_bytes, f_name)
#define __array_(r_name, r_value, r_idx_1, a_offset, a_bytes, a_name) \
	__u8 a_name[a_bytes];

#include REQUEST_FILE

/*
 * Generate a check of the field offsets
 * <NAME_LOWER>_assert_offsets_correct()
 */
#include "_clear.h"
#define REQUEST_(r_name, r_value, index, r_fields)			\
r_fields
#define __field_(r_name, r_value, r_idx_1, f_offset, f_size, f_name) \
	BUILD_BUG_ON(offsetof(struct STRUCT_NAME(r_name), f_name) != f_offset);
#define __count_(r_name, r_value, r_idx_1, c_offset, c_size, c_name) \
	__field_(r_name, r_value, r_idx_1, c_offset, c_size, c_name)
#define __array_(r_name, r_value, r_idx_1, a_offset, a_size, a_name) \
	__field_(r_name, r_value, r_idx_1, a_offset, a_size, a_name)

static inline void CAT2(NAME_LOWER, _assert_offsets_correct)(void)
{
#include REQUEST_FILE
}

/*
 * Generate event attributes:
 * PMU_EVENT_ATTR_STRING(<request name>_<field name>,
 *	<NAME_LOWER>_event_attr_<request name>_<field name>,
 *		"request=<request value>"
 *		"starting_index=<starting index type>"
 *		"counter_info_version=CURRENT_COUNTER_INFO_VERSION"
 *		"length=<f_size>"
 *		"offset=<f_offset>")
 *
 *	TODO: counter_info_version may need to vary, we should interperate the
 *	value to some extent
 */
#define EVENT_ATTR_NAME__(name, r_name, c_name) \
	name ## _event_attr_ ## r_name ## _ ## c_name
#define EVENT_ATTR_NAME_(name, r_name, c_name) \
	EVENT_ATTR_NAME__(name, r_name, c_name)
#define EVENT_ATTR_NAME(r_name, c_name) \
	EVENT_ATTR_NAME_(NAME_LOWER, r_name, c_name)

#include "_clear.h"
#define __field_(r_name, r_value, r_idx_1, f_offset, f_size, f_name)
#define __array_(r_name, r_value, r_idx_1, a_offset, a_size, a_name)
#define __count_(r_name, r_value, r_idx_1, c_offset, c_size, c_name)	\
PMU_EVENT_ATTR_STRING(							\
		CAT3(r_name, _, c_name),				\
		EVENT_ATTR_NAME(r_name, c_name),			\
		"request=" __stringify(r_value) ","			\
		r_idx_1 ","						\
		"counter_info_version="					\
			__stringify(COUNTER_INFO_VERSION_CURRENT) ","	\
		"length=" #c_size ","					\
		"offset=" #c_offset)
#define REQUEST_(r_name, r_value, r_idx_1, r_fields)			\
	r_fields

#include REQUEST_FILE

/*
 * Define event attribute array
 * static struct attribute *hv_gpci_event_attrs[] = {
 *	&<NAME_LOWER>_event_attr_<request name>_<field name>.attr,
 * };
 */
#include "_clear.h"
#define __field_(r_name, r_value, r_idx_1, f_offset, f_size, f_name)
#define __count_(r_name, r_value, r_idx_1, c_offset, c_size, c_name)	\
	&EVENT_ATTR_NAME(r_name, c_name).attr.attr,
#define __array_(r_name, r_value, r_idx_1, a_offset, a_size, a_name)
#define REQUEST_(r_name, r_value, r_idx_1, r_fields)			\
	r_fields

static __maybe_unused struct attribute *hv_gpci_event_attrs[] = {
#include REQUEST_FILE
	NULL
};

/* cleanup */
#include "_clear.h"
#undef EVENT_ATTR_NAME
#undef EVENT_ATTR_NAME_
#undef BIT_NAME
#undef BIT_NAME_
#undef STRUCT_NAME
#undef REQUEST_VALUE
#undef REQUEST_VALUE_

#endif
Commit	Line	Data
9e9f6010 CS	1	#ifndef LINUX_POWERPC_PERF_REQ_GEN_PERF_H_
	2	#define LINUX_POWERPC_PERF_REQ_GEN_PERF_H_
	3
	4	#include <linux/perf_event.h>
	5
	6	#ifndef REQUEST_FILE
	7	#error "REQUEST_FILE must be defined before including"
	8	#endif
	9
	10	#ifndef NAME_LOWER
	11	#error "NAME_LOWER must be defined before including"
	12	#endif
	13
	14	#ifndef NAME_UPPER
	15	#error "NAME_UPPER must be defined before including"
	16	#endif
	17
	18	#define BE_TYPE_b1 __u8
	19	#define BE_TYPE_b2 __be16
	20	#define BE_TYPE_b4 __be32
	21	#define BE_TYPE_b8 __be64
	22
	23	#define BYTES_TO_BE_TYPE(bytes) \
	24	BE_TYPE_b##bytes
	25
	26	#define CAT2_(a, b) a ## b
	27	#define CAT2(a, b) CAT2_(a, b)
	28	#define CAT3_(a, b, c) a ## b ## c
	29	#define CAT3(a, b, c) CAT3_(a, b, c)
	30
	31	/*
	32	* enumerate the request values as
	33	* <NAME_UPPER>_<request name> = <request value>
	34	*/
	35	#define REQUEST_VALUE__(name_upper, r_name) name_upper ## _ ## r_name
	36	#define REQUEST_VALUE_(name_upper, r_name) REQUEST_VALUE__(name_upper, r_name)
	37	#define REQUEST_VALUE(r_name) REQUEST_VALUE_(NAME_UPPER, r_name)
	38
	39	#include "_clear.h"
	40	#define REQUEST_(r_name, r_value, r_idx_1, r_fields) \
	41	REQUEST_VALUE(r_name) = r_value,
	42	enum CAT2(NAME_LOWER, _requests) {
	43	#include REQUEST_FILE
	44	};
	45
	46	/*
	47	* For each request:
	48	* struct <NAME_LOWER>_<request name> {
	49	* r_fields
	50	* };
	51	*/
	52	#include "_clear.h"
	53	#define STRUCT_NAME__(name_lower, r_name) name_lower ## _ ## r_name
	54	#define STRUCT_NAME_(name_lower, r_name) STRUCT_NAME__(name_lower, r_name)
	55	#define STRUCT_NAME(r_name) STRUCT_NAME_(NAME_LOWER, r_name)
	56	#define REQUEST_(r_name, r_value, r_idx_1, r_fields) \
	57	struct STRUCT_NAME(r_name) { \
	58	r_fields \
	59	};
	60	#define __field_(r_name, r_value, r_idx_1, f_offset, f_bytes, f_name) \
	61	BYTES_TO_BE_TYPE(f_bytes) f_name;
	62	#define __count_(r_name, r_value, r_idx_1, f_offset, f_bytes, f_name) \
	63	__field_(r_name, r_value, r_idx_1, f_offset, f_bytes, f_name)
	64	#define __array_(r_name, r_value, r_idx_1, a_offset, a_bytes, a_name) \
65	__u8 a_name[a_bytes];
66
67	#include REQUEST_FILE
68
69	/*
70	* Generate a check of the field offsets
71	* <NAME_LOWER>_assert_offsets_correct()
72	*/
73	#include "_clear.h"
74	#define REQUEST_(r_name, r_value, index, r_fields) \
75	r_fields
76	#define __field_(r_name, r_value, r_idx_1, f_offset, f_size, f_name) \
77	BUILD_BUG_ON(offsetof(struct STRUCT_NAME(r_name), f_name) != f_offset);
78	#define __count_(r_name, r_value, r_idx_1, c_offset, c_size, c_name) \
79	__field_(r_name, r_value, r_idx_1, c_offset, c_size, c_name)
80	#define __array_(r_name, r_value, r_idx_1, a_offset, a_size, a_name) \
81	__field_(r_name, r_value, r_idx_1, a_offset, a_size, a_name)
82
83	static inline void CAT2(NAME_LOWER, _assert_offsets_correct)(void)
84	{
85	#include REQUEST_FILE
86	}
87
88	/*
89	* Generate event attributes:
90	* PMU_EVENT_ATTR_STRING(<request name>_<field name>,
91	* <NAME_LOWER>_event_attr_<request name>_<field name>,
92	* "request=<request value>"
93	* "starting_index=<starting index type>"
94	* "counter_info_version=CURRENT_COUNTER_INFO_VERSION"
95	* "length=<f_size>"
96	* "offset=<f_offset>")
97	*
98	* TODO: counter_info_version may need to vary, we should interperate the
99	* value to some extent
100	*/
101	#define EVENT_ATTR_NAME__(name, r_name, c_name) \
102	name ## _event_attr_ ## r_name ## _ ## c_name
103	#define EVENT_ATTR_NAME_(name, r_name, c_name) \
104	EVENT_ATTR_NAME__(name, r_name, c_name)
105	#define EVENT_ATTR_NAME(r_name, c_name) \
106	EVENT_ATTR_NAME_(NAME_LOWER, r_name, c_name)
107
108	#include "_clear.h"
109	#define __field_(r_name, r_value, r_idx_1, f_offset, f_size, f_name)
110	#define __array_(r_name, r_value, r_idx_1, a_offset, a_size, a_name)
111	#define __count_(r_name, r_value, r_idx_1, c_offset, c_size, c_name) \
112	PMU_EVENT_ATTR_STRING( \
113	CAT3(r_name, _, c_name), \
114	EVENT_ATTR_NAME(r_name, c_name), \
115	"request=" __stringify(r_value) "," \
116	r_idx_1 "," \
117	"counter_info_version=" \
118	__stringify(COUNTER_INFO_VERSION_CURRENT) "," \
119	"length=" #c_size "," \
120	"offset=" #c_offset)
121	#define REQUEST_(r_name, r_value, r_idx_1, r_fields) \
122	r_fields
123
124	#include REQUEST_FILE
125
126	/*
127	* Define event attribute array
128	* static struct attribute *hv_gpci_event_attrs[] = {
129	* &<NAME_LOWER>_event_attr_<request name>_<field name>.attr,
130	* };
131	*/
132	#include "_clear.h"
133	#define __field_(r_name, r_value, r_idx_1, f_offset, f_size, f_name)
134	#define __count_(r_name, r_value, r_idx_1, c_offset, c_size, c_name) \
135	&EVENT_ATTR_NAME(r_name, c_name).attr.attr,
136	#define __array_(r_name, r_value, r_idx_1, a_offset, a_size, a_name)
137	#define REQUEST_(r_name, r_value, r_idx_1, r_fields) \
138	r_fields
139
140	static __maybe_unused struct attribute *hv_gpci_event_attrs[] = {
141	#include REQUEST_FILE
142	NULL
143	};
144
145	/* cleanup */
146	#include "_clear.h"
147	#undef EVENT_ATTR_NAME
148	#undef EVENT_ATTR_NAME_
149	#undef BIT_NAME
150	#undef BIT_NAME_
151	#undef STRUCT_NAME
152	#undef REQUEST_VALUE
153	#undef REQUEST_VALUE_
154
155	#endif