1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2021 Marvell.
5 #ifndef __CNXK_TIM_EVDEV_H__
6 #define __CNXK_TIM_EVDEV_H__
13 #include <eventdev_pmd_pci.h>
14 #include <rte_event_timer_adapter.h>
15 #include <rte_malloc.h>
16 #include <rte_memzone.h>
20 #define NSECPERSEC 1E9
21 #define USECPERSEC 1E6
22 #define TICK2NSEC(__tck, __freq) (((__tck)*NSECPERSEC) / (__freq))
24 #define CNXK_TIM_EVDEV_NAME cnxk_tim_eventdev
25 #define CNXK_TIM_MAX_BUCKETS (0xFFFFF)
26 #define CNXK_TIM_RING_DEF_CHUNK_SZ (4096)
27 #define CNXK_TIM_CHUNK_ALIGNMENT (16)
28 #define CNXK_TIM_MAX_BURST \
29 (RTE_CACHE_LINE_SIZE / CNXK_TIM_CHUNK_ALIGNMENT)
30 #define CNXK_TIM_NB_CHUNK_SLOTS(sz) (((sz) / CNXK_TIM_CHUNK_ALIGNMENT) - 1)
31 #define CNXK_TIM_MIN_CHUNK_SLOTS (0x1)
32 #define CNXK_TIM_MAX_CHUNK_SLOTS (0x1FFE)
34 #define CN9K_TIM_MIN_TMO_TKS (256)
36 #define CNXK_TIM_DISABLE_NPA "tim_disable_npa"
37 #define CNXK_TIM_CHNK_SLOTS "tim_chnk_slots"
38 #define CNXK_TIM_RINGS_LMT "tim_rings_lmt"
40 #define TIM_BUCKET_W1_S_CHUNK_REMAINDER (48)
41 #define TIM_BUCKET_W1_M_CHUNK_REMAINDER \
42 ((1ULL << (64 - TIM_BUCKET_W1_S_CHUNK_REMAINDER)) - 1)
43 #define TIM_BUCKET_W1_S_LOCK (40)
44 #define TIM_BUCKET_W1_M_LOCK \
45 ((1ULL << (TIM_BUCKET_W1_S_CHUNK_REMAINDER - TIM_BUCKET_W1_S_LOCK)) - 1)
46 #define TIM_BUCKET_W1_S_RSVD (35)
47 #define TIM_BUCKET_W1_S_BSK (34)
48 #define TIM_BUCKET_W1_M_BSK \
49 ((1ULL << (TIM_BUCKET_W1_S_RSVD - TIM_BUCKET_W1_S_BSK)) - 1)
50 #define TIM_BUCKET_W1_S_HBT (33)
51 #define TIM_BUCKET_W1_M_HBT \
52 ((1ULL << (TIM_BUCKET_W1_S_BSK - TIM_BUCKET_W1_S_HBT)) - 1)
53 #define TIM_BUCKET_W1_S_SBT (32)
54 #define TIM_BUCKET_W1_M_SBT \
55 ((1ULL << (TIM_BUCKET_W1_S_HBT - TIM_BUCKET_W1_S_SBT)) - 1)
56 #define TIM_BUCKET_W1_S_NUM_ENTRIES (0)
57 #define TIM_BUCKET_W1_M_NUM_ENTRIES \
58 ((1ULL << (TIM_BUCKET_W1_S_SBT - TIM_BUCKET_W1_S_NUM_ENTRIES)) - 1)
60 #define TIM_BUCKET_SEMA (TIM_BUCKET_CHUNK_REMAIN)
62 #define TIM_BUCKET_CHUNK_REMAIN \
63 (TIM_BUCKET_W1_M_CHUNK_REMAINDER << TIM_BUCKET_W1_S_CHUNK_REMAINDER)
65 #define TIM_BUCKET_LOCK (TIM_BUCKET_W1_M_LOCK << TIM_BUCKET_W1_S_LOCK)
67 #define TIM_BUCKET_SEMA_WLOCK \
68 (TIM_BUCKET_CHUNK_REMAIN | (1ull << TIM_BUCKET_W1_S_LOCK))
70 struct cnxk_tim_evdev {
72 struct rte_eventdev *event_dev;
78 uint16_t min_ring_cnt;
81 enum cnxk_tim_clk_src {
82 CNXK_TIM_CLK_SRC_10NS = RTE_EVENT_TIMER_ADAPTER_CPU_CLK,
83 CNXK_TIM_CLK_SRC_GPIO = RTE_EVENT_TIMER_ADAPTER_EXT_CLK0,
84 CNXK_TIM_CLK_SRC_GTI = RTE_EVENT_TIMER_ADAPTER_EXT_CLK1,
85 CNXK_TIM_CLK_SRC_PTP = RTE_EVENT_TIMER_ADAPTER_EXT_CLK2,
99 int16_t chunk_remainder;
102 uint64_t current_chunk;
106 struct cnxk_tim_ring {
108 uint16_t nb_chunk_slots;
112 struct cnxk_tim_bkt *bkt;
113 struct rte_mempool *chunk_pool;
115 uint8_t prod_type_sp;
125 enum cnxk_tim_clk_src clk_src;
126 } __rte_cache_aligned;
128 struct cnxk_tim_ent {
133 static inline struct cnxk_tim_evdev *
134 cnxk_tim_priv_get(void)
136 const struct rte_memzone *mz;
138 mz = rte_memzone_lookup(RTE_STR(CNXK_TIM_EVDEV_NAME));
145 static inline uint64_t
146 cnxk_tim_min_tmo_ticks(uint64_t freq)
148 if (roc_model_runtime_is_cn9k())
149 return CN9K_TIM_MIN_TMO_TKS;
150 else /* CN10K min tick is of 1us */
151 return freq / USECPERSEC;
154 static inline uint64_t
155 cnxk_tim_min_resolution_ns(uint64_t freq)
157 return NSECPERSEC / freq;
160 static inline enum roc_tim_clk_src
161 cnxk_tim_convert_clk_src(enum cnxk_tim_clk_src clk_src)
164 case RTE_EVENT_TIMER_ADAPTER_CPU_CLK:
165 return roc_model_runtime_is_cn9k() ? ROC_TIM_CLK_SRC_10NS :
168 return ROC_TIM_CLK_SRC_INVALID;
172 #ifdef RTE_ARCH_ARM64
173 static inline uint64_t
174 cnxk_tim_cntvct(void)
178 asm volatile("mrs %0, cntvct_el0" : "=r"(tsc));
182 static inline uint64_t
183 cnxk_tim_cntfrq(void)
187 asm volatile("mrs %0, cntfrq_el0" : "=r"(freq));
191 static inline uint64_t
192 cnxk_tim_cntvct(void)
197 static inline uint64_t
198 cnxk_tim_cntfrq(void)
204 int cnxk_tim_caps_get(const struct rte_eventdev *dev, uint64_t flags,
206 const struct rte_event_timer_adapter_ops **ops);
208 void cnxk_tim_init(struct roc_sso *sso);
209 void cnxk_tim_fini(void);
211 #endif /* __CNXK_TIM_EVDEV_H__ */