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 struct cnxk_tim_evdev {
38 struct rte_eventdev *event_dev;
43 enum cnxk_tim_clk_src {
44 CNXK_TIM_CLK_SRC_10NS = RTE_EVENT_TIMER_ADAPTER_CPU_CLK,
45 CNXK_TIM_CLK_SRC_GPIO = RTE_EVENT_TIMER_ADAPTER_EXT_CLK0,
46 CNXK_TIM_CLK_SRC_GTI = RTE_EVENT_TIMER_ADAPTER_EXT_CLK1,
47 CNXK_TIM_CLK_SRC_PTP = RTE_EVENT_TIMER_ADAPTER_EXT_CLK2,
61 int16_t chunk_remainder;
64 uint64_t current_chunk;
68 struct cnxk_tim_ring {
70 uint16_t nb_chunk_slots;
74 struct cnxk_tim_bkt *bkt;
75 struct rte_mempool *chunk_pool;
86 enum cnxk_tim_clk_src clk_src;
87 } __rte_cache_aligned;
94 static inline struct cnxk_tim_evdev *
95 cnxk_tim_priv_get(void)
97 const struct rte_memzone *mz;
99 mz = rte_memzone_lookup(RTE_STR(CNXK_TIM_EVDEV_NAME));
106 static inline uint64_t
107 cnxk_tim_min_tmo_ticks(uint64_t freq)
109 if (roc_model_runtime_is_cn9k())
110 return CN9K_TIM_MIN_TMO_TKS;
111 else /* CN10K min tick is of 1us */
112 return freq / USECPERSEC;
115 static inline uint64_t
116 cnxk_tim_min_resolution_ns(uint64_t freq)
118 return NSECPERSEC / freq;
121 static inline enum roc_tim_clk_src
122 cnxk_tim_convert_clk_src(enum cnxk_tim_clk_src clk_src)
125 case RTE_EVENT_TIMER_ADAPTER_CPU_CLK:
126 return roc_model_runtime_is_cn9k() ? ROC_TIM_CLK_SRC_10NS :
129 return ROC_TIM_CLK_SRC_INVALID;
133 #ifdef RTE_ARCH_ARM64
134 static inline uint64_t
135 cnxk_tim_cntvct(void)
139 asm volatile("mrs %0, cntvct_el0" : "=r"(tsc));
143 static inline uint64_t
144 cnxk_tim_cntfrq(void)
148 asm volatile("mrs %0, cntfrq_el0" : "=r"(freq));
152 static inline uint64_t
153 cnxk_tim_cntvct(void)
158 static inline uint64_t
159 cnxk_tim_cntfrq(void)
165 int cnxk_tim_caps_get(const struct rte_eventdev *dev, uint64_t flags,
167 const struct rte_event_timer_adapter_ops **ops);
169 void cnxk_tim_init(struct roc_sso *sso);
170 void cnxk_tim_fini(void);
172 #endif /* __CNXK_TIM_EVDEV_H__ */