1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (c) 2023 Intel Corporation. */ 3 #ifndef ADF_TELEMETRY_H 4 #define ADF_TELEMETRY_H 5 6 #include <linux/bits.h> 7 #include <linux/mutex.h> 8 #include <linux/types.h> 9 #include <linux/workqueue.h> 10 11 #include "icp_qat_fw_init_admin.h" 12 13 struct adf_accel_dev; 14 struct adf_tl_dbg_counter; 15 struct dentry; 16 17 #define ADF_TL_SL_CNT_COUNT \ 18 (sizeof(struct icp_qat_fw_init_admin_slice_cnt) / sizeof(__u8)) 19 20 #define TL_CAPABILITY_BIT BIT(1) 21 /* Interval within device writes data to DMA region. Value in milliseconds. */ 22 #define ADF_TL_DATA_WR_INTERVAL_MS 1000 23 /* Interval within timer interrupt should be handled. Value in milliseconds. */ 24 #define ADF_TL_TIMER_INT_MS (ADF_TL_DATA_WR_INTERVAL_MS / 2) 25 26 #define ADF_TL_RP_REGS_DISABLED (0xff) 27 28 struct adf_tl_hw_data { 29 size_t layout_sz; 30 size_t slice_reg_sz; 31 size_t rp_reg_sz; 32 size_t msg_cnt_off; 33 const struct adf_tl_dbg_counter *dev_counters; 34 const struct adf_tl_dbg_counter *sl_util_counters; 35 const struct adf_tl_dbg_counter *sl_exec_counters; 36 const struct adf_tl_dbg_counter *rp_counters; 37 u8 num_hbuff; 38 u8 cpp_ns_per_cycle; 39 u8 bw_units_to_bytes; 40 u8 num_dev_counters; 41 u8 num_rp_counters; 42 u8 max_rp; 43 u8 max_sl_cnt; 44 }; 45 46 struct adf_telemetry { 47 struct adf_accel_dev *accel_dev; 48 atomic_t state; 49 u32 hbuffs; 50 int hb_num; 51 u32 msg_cnt; 52 dma_addr_t regs_data_p; /* bus address for DMA mapping */ 53 void *regs_data; /* virtual address for DMA mapping */ 54 /** 55 * @regs_hist_buff: array of pointers to copies of the last @hbuffs 56 * values of @regs_data 57 */ 58 void **regs_hist_buff; 59 struct dentry *dbg_dir; 60 u8 *rp_num_indexes; 61 /** 62 * @regs_hist_lock: protects from race conditions between write and read 63 * to the copies referenced by @regs_hist_buff 64 */ 65 struct mutex regs_hist_lock; 66 /** 67 * @wr_lock: protects from concurrent writes to debugfs telemetry files 68 */ 69 struct mutex wr_lock; 70 struct delayed_work work_ctx; 71 struct icp_qat_fw_init_admin_slice_cnt slice_cnt; 72 }; 73 74 #ifdef CONFIG_DEBUG_FS 75 int adf_tl_init(struct adf_accel_dev *accel_dev); 76 int adf_tl_start(struct adf_accel_dev *accel_dev); 77 void adf_tl_stop(struct adf_accel_dev *accel_dev); 78 void adf_tl_shutdown(struct adf_accel_dev *accel_dev); 79 int adf_tl_run(struct adf_accel_dev *accel_dev, int state); 80 int adf_tl_halt(struct adf_accel_dev *accel_dev); 81 #else adf_tl_init(struct adf_accel_dev * accel_dev)82static inline int adf_tl_init(struct adf_accel_dev *accel_dev) 83 { 84 return 0; 85 } 86 adf_tl_start(struct adf_accel_dev * accel_dev)87static inline int adf_tl_start(struct adf_accel_dev *accel_dev) 88 { 89 return 0; 90 } 91 adf_tl_stop(struct adf_accel_dev * accel_dev)92static inline void adf_tl_stop(struct adf_accel_dev *accel_dev) 93 { 94 } 95 adf_tl_shutdown(struct adf_accel_dev * accel_dev)96static inline void adf_tl_shutdown(struct adf_accel_dev *accel_dev) 97 { 98 } 99 #endif /* CONFIG_DEBUG_FS */ 100 #endif /* ADF_TELEMETRY_H */ 101