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OpenCloudOS-Kernel/include/uapi/misc/habanalabs.h

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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
*
* Copyright 2016-2020 HabanaLabs, Ltd.
* All Rights Reserved.
*
*/
#ifndef HABANALABS_H_
#define HABANALABS_H_
#include <linux/types.h>
#include <linux/ioctl.h>
/*
* Defines that are asic-specific but constitutes as ABI between kernel driver
* and userspace
*/
#define GOYA_KMD_SRAM_RESERVED_SIZE_FROM_START 0x8000 /* 32KB */
#define GAUDI_DRIVER_SRAM_RESERVED_SIZE_FROM_START 0x80 /* 128 bytes */
/*
* 128 SOBs reserved for collective wait
* 16 SOBs reserved for sync stream
*/
#define GAUDI_FIRST_AVAILABLE_W_S_SYNC_OBJECT 144
/*
* 64 monitors reserved for collective wait
* 8 monitors reserved for sync stream
*/
#define GAUDI_FIRST_AVAILABLE_W_S_MONITOR 72
/*
* Goya queue Numbering
*
* The external queues (PCI DMA channels) MUST be before the internal queues
* and each group (PCI DMA channels and internal) must be contiguous inside
* itself but there can be a gap between the two groups (although not
* recommended)
*/
enum goya_queue_id {
GOYA_QUEUE_ID_DMA_0 = 0,
GOYA_QUEUE_ID_DMA_1 = 1,
GOYA_QUEUE_ID_DMA_2 = 2,
GOYA_QUEUE_ID_DMA_3 = 3,
GOYA_QUEUE_ID_DMA_4 = 4,
GOYA_QUEUE_ID_CPU_PQ = 5,
GOYA_QUEUE_ID_MME = 6, /* Internal queues start here */
GOYA_QUEUE_ID_TPC0 = 7,
GOYA_QUEUE_ID_TPC1 = 8,
GOYA_QUEUE_ID_TPC2 = 9,
GOYA_QUEUE_ID_TPC3 = 10,
GOYA_QUEUE_ID_TPC4 = 11,
GOYA_QUEUE_ID_TPC5 = 12,
GOYA_QUEUE_ID_TPC6 = 13,
GOYA_QUEUE_ID_TPC7 = 14,
GOYA_QUEUE_ID_SIZE
};
/*
* Gaudi queue Numbering
* External queues (PCI DMA channels) are DMA_0_*, DMA_1_* and DMA_5_*.
* Except one CPU queue, all the rest are internal queues.
*/
enum gaudi_queue_id {
GAUDI_QUEUE_ID_DMA_0_0 = 0, /* external */
GAUDI_QUEUE_ID_DMA_0_1 = 1, /* external */
GAUDI_QUEUE_ID_DMA_0_2 = 2, /* external */
GAUDI_QUEUE_ID_DMA_0_3 = 3, /* external */
GAUDI_QUEUE_ID_DMA_1_0 = 4, /* external */
GAUDI_QUEUE_ID_DMA_1_1 = 5, /* external */
GAUDI_QUEUE_ID_DMA_1_2 = 6, /* external */
GAUDI_QUEUE_ID_DMA_1_3 = 7, /* external */
GAUDI_QUEUE_ID_CPU_PQ = 8, /* CPU */
GAUDI_QUEUE_ID_DMA_2_0 = 9, /* internal */
GAUDI_QUEUE_ID_DMA_2_1 = 10, /* internal */
GAUDI_QUEUE_ID_DMA_2_2 = 11, /* internal */
GAUDI_QUEUE_ID_DMA_2_3 = 12, /* internal */
GAUDI_QUEUE_ID_DMA_3_0 = 13, /* internal */
GAUDI_QUEUE_ID_DMA_3_1 = 14, /* internal */
GAUDI_QUEUE_ID_DMA_3_2 = 15, /* internal */
GAUDI_QUEUE_ID_DMA_3_3 = 16, /* internal */
GAUDI_QUEUE_ID_DMA_4_0 = 17, /* internal */
GAUDI_QUEUE_ID_DMA_4_1 = 18, /* internal */
GAUDI_QUEUE_ID_DMA_4_2 = 19, /* internal */
GAUDI_QUEUE_ID_DMA_4_3 = 20, /* internal */
GAUDI_QUEUE_ID_DMA_5_0 = 21, /* internal */
GAUDI_QUEUE_ID_DMA_5_1 = 22, /* internal */
GAUDI_QUEUE_ID_DMA_5_2 = 23, /* internal */
GAUDI_QUEUE_ID_DMA_5_3 = 24, /* internal */
GAUDI_QUEUE_ID_DMA_6_0 = 25, /* internal */
GAUDI_QUEUE_ID_DMA_6_1 = 26, /* internal */
GAUDI_QUEUE_ID_DMA_6_2 = 27, /* internal */
GAUDI_QUEUE_ID_DMA_6_3 = 28, /* internal */
GAUDI_QUEUE_ID_DMA_7_0 = 29, /* internal */
GAUDI_QUEUE_ID_DMA_7_1 = 30, /* internal */
GAUDI_QUEUE_ID_DMA_7_2 = 31, /* internal */
GAUDI_QUEUE_ID_DMA_7_3 = 32, /* internal */
GAUDI_QUEUE_ID_MME_0_0 = 33, /* internal */
GAUDI_QUEUE_ID_MME_0_1 = 34, /* internal */
GAUDI_QUEUE_ID_MME_0_2 = 35, /* internal */
GAUDI_QUEUE_ID_MME_0_3 = 36, /* internal */
GAUDI_QUEUE_ID_MME_1_0 = 37, /* internal */
GAUDI_QUEUE_ID_MME_1_1 = 38, /* internal */
GAUDI_QUEUE_ID_MME_1_2 = 39, /* internal */
GAUDI_QUEUE_ID_MME_1_3 = 40, /* internal */
GAUDI_QUEUE_ID_TPC_0_0 = 41, /* internal */
GAUDI_QUEUE_ID_TPC_0_1 = 42, /* internal */
GAUDI_QUEUE_ID_TPC_0_2 = 43, /* internal */
GAUDI_QUEUE_ID_TPC_0_3 = 44, /* internal */
GAUDI_QUEUE_ID_TPC_1_0 = 45, /* internal */
GAUDI_QUEUE_ID_TPC_1_1 = 46, /* internal */
GAUDI_QUEUE_ID_TPC_1_2 = 47, /* internal */
GAUDI_QUEUE_ID_TPC_1_3 = 48, /* internal */
GAUDI_QUEUE_ID_TPC_2_0 = 49, /* internal */
GAUDI_QUEUE_ID_TPC_2_1 = 50, /* internal */
GAUDI_QUEUE_ID_TPC_2_2 = 51, /* internal */
GAUDI_QUEUE_ID_TPC_2_3 = 52, /* internal */
GAUDI_QUEUE_ID_TPC_3_0 = 53, /* internal */
GAUDI_QUEUE_ID_TPC_3_1 = 54, /* internal */
GAUDI_QUEUE_ID_TPC_3_2 = 55, /* internal */
GAUDI_QUEUE_ID_TPC_3_3 = 56, /* internal */
GAUDI_QUEUE_ID_TPC_4_0 = 57, /* internal */
GAUDI_QUEUE_ID_TPC_4_1 = 58, /* internal */
GAUDI_QUEUE_ID_TPC_4_2 = 59, /* internal */
GAUDI_QUEUE_ID_TPC_4_3 = 60, /* internal */
GAUDI_QUEUE_ID_TPC_5_0 = 61, /* internal */
GAUDI_QUEUE_ID_TPC_5_1 = 62, /* internal */
GAUDI_QUEUE_ID_TPC_5_2 = 63, /* internal */
GAUDI_QUEUE_ID_TPC_5_3 = 64, /* internal */
GAUDI_QUEUE_ID_TPC_6_0 = 65, /* internal */
GAUDI_QUEUE_ID_TPC_6_1 = 66, /* internal */
GAUDI_QUEUE_ID_TPC_6_2 = 67, /* internal */
GAUDI_QUEUE_ID_TPC_6_3 = 68, /* internal */
GAUDI_QUEUE_ID_TPC_7_0 = 69, /* internal */
GAUDI_QUEUE_ID_TPC_7_1 = 70, /* internal */
GAUDI_QUEUE_ID_TPC_7_2 = 71, /* internal */
GAUDI_QUEUE_ID_TPC_7_3 = 72, /* internal */
GAUDI_QUEUE_ID_NIC_0_0 = 73, /* internal */
GAUDI_QUEUE_ID_NIC_0_1 = 74, /* internal */
GAUDI_QUEUE_ID_NIC_0_2 = 75, /* internal */
GAUDI_QUEUE_ID_NIC_0_3 = 76, /* internal */
GAUDI_QUEUE_ID_NIC_1_0 = 77, /* internal */
GAUDI_QUEUE_ID_NIC_1_1 = 78, /* internal */
GAUDI_QUEUE_ID_NIC_1_2 = 79, /* internal */
GAUDI_QUEUE_ID_NIC_1_3 = 80, /* internal */
GAUDI_QUEUE_ID_NIC_2_0 = 81, /* internal */
GAUDI_QUEUE_ID_NIC_2_1 = 82, /* internal */
GAUDI_QUEUE_ID_NIC_2_2 = 83, /* internal */
GAUDI_QUEUE_ID_NIC_2_3 = 84, /* internal */
GAUDI_QUEUE_ID_NIC_3_0 = 85, /* internal */
GAUDI_QUEUE_ID_NIC_3_1 = 86, /* internal */
GAUDI_QUEUE_ID_NIC_3_2 = 87, /* internal */
GAUDI_QUEUE_ID_NIC_3_3 = 88, /* internal */
GAUDI_QUEUE_ID_NIC_4_0 = 89, /* internal */
GAUDI_QUEUE_ID_NIC_4_1 = 90, /* internal */
GAUDI_QUEUE_ID_NIC_4_2 = 91, /* internal */
GAUDI_QUEUE_ID_NIC_4_3 = 92, /* internal */
GAUDI_QUEUE_ID_NIC_5_0 = 93, /* internal */
GAUDI_QUEUE_ID_NIC_5_1 = 94, /* internal */
GAUDI_QUEUE_ID_NIC_5_2 = 95, /* internal */
GAUDI_QUEUE_ID_NIC_5_3 = 96, /* internal */
GAUDI_QUEUE_ID_NIC_6_0 = 97, /* internal */
GAUDI_QUEUE_ID_NIC_6_1 = 98, /* internal */
GAUDI_QUEUE_ID_NIC_6_2 = 99, /* internal */
GAUDI_QUEUE_ID_NIC_6_3 = 100, /* internal */
GAUDI_QUEUE_ID_NIC_7_0 = 101, /* internal */
GAUDI_QUEUE_ID_NIC_7_1 = 102, /* internal */
GAUDI_QUEUE_ID_NIC_7_2 = 103, /* internal */
GAUDI_QUEUE_ID_NIC_7_3 = 104, /* internal */
GAUDI_QUEUE_ID_NIC_8_0 = 105, /* internal */
GAUDI_QUEUE_ID_NIC_8_1 = 106, /* internal */
GAUDI_QUEUE_ID_NIC_8_2 = 107, /* internal */
GAUDI_QUEUE_ID_NIC_8_3 = 108, /* internal */
GAUDI_QUEUE_ID_NIC_9_0 = 109, /* internal */
GAUDI_QUEUE_ID_NIC_9_1 = 110, /* internal */
GAUDI_QUEUE_ID_NIC_9_2 = 111, /* internal */
GAUDI_QUEUE_ID_NIC_9_3 = 112, /* internal */
GAUDI_QUEUE_ID_SIZE
};
/*
* Engine Numbering
*
* Used in the "busy_engines_mask" field in `struct hl_info_hw_idle'
*/
enum goya_engine_id {
GOYA_ENGINE_ID_DMA_0 = 0,
GOYA_ENGINE_ID_DMA_1,
GOYA_ENGINE_ID_DMA_2,
GOYA_ENGINE_ID_DMA_3,
GOYA_ENGINE_ID_DMA_4,
GOYA_ENGINE_ID_MME_0,
GOYA_ENGINE_ID_TPC_0,
GOYA_ENGINE_ID_TPC_1,
GOYA_ENGINE_ID_TPC_2,
GOYA_ENGINE_ID_TPC_3,
GOYA_ENGINE_ID_TPC_4,
GOYA_ENGINE_ID_TPC_5,
GOYA_ENGINE_ID_TPC_6,
GOYA_ENGINE_ID_TPC_7,
GOYA_ENGINE_ID_SIZE
};
enum gaudi_engine_id {
GAUDI_ENGINE_ID_DMA_0 = 0,
GAUDI_ENGINE_ID_DMA_1,
GAUDI_ENGINE_ID_DMA_2,
GAUDI_ENGINE_ID_DMA_3,
GAUDI_ENGINE_ID_DMA_4,
GAUDI_ENGINE_ID_DMA_5,
GAUDI_ENGINE_ID_DMA_6,
GAUDI_ENGINE_ID_DMA_7,
GAUDI_ENGINE_ID_MME_0,
GAUDI_ENGINE_ID_MME_1,
GAUDI_ENGINE_ID_MME_2,
GAUDI_ENGINE_ID_MME_3,
GAUDI_ENGINE_ID_TPC_0,
GAUDI_ENGINE_ID_TPC_1,
GAUDI_ENGINE_ID_TPC_2,
GAUDI_ENGINE_ID_TPC_3,
GAUDI_ENGINE_ID_TPC_4,
GAUDI_ENGINE_ID_TPC_5,
GAUDI_ENGINE_ID_TPC_6,
GAUDI_ENGINE_ID_TPC_7,
GAUDI_ENGINE_ID_NIC_0,
GAUDI_ENGINE_ID_NIC_1,
GAUDI_ENGINE_ID_NIC_2,
GAUDI_ENGINE_ID_NIC_3,
GAUDI_ENGINE_ID_NIC_4,
GAUDI_ENGINE_ID_NIC_5,
GAUDI_ENGINE_ID_NIC_6,
GAUDI_ENGINE_ID_NIC_7,
GAUDI_ENGINE_ID_NIC_8,
GAUDI_ENGINE_ID_NIC_9,
GAUDI_ENGINE_ID_SIZE
};
/*
* ASIC specific PLL index
*
* Used to retrieve in frequency info of different IPs via
* HL_INFO_PLL_FREQUENCY under HL_IOCTL_INFO IOCTL. The enums need to be
* used as an index in struct hl_pll_frequency_info
*/
enum hl_goya_pll_index {
HL_GOYA_CPU_PLL = 0,
HL_GOYA_IC_PLL,
HL_GOYA_MC_PLL,
HL_GOYA_MME_PLL,
HL_GOYA_PCI_PLL,
HL_GOYA_EMMC_PLL,
HL_GOYA_TPC_PLL,
HL_GOYA_PLL_MAX
};
enum hl_gaudi_pll_index {
HL_GAUDI_CPU_PLL = 0,
HL_GAUDI_PCI_PLL,
HL_GAUDI_SRAM_PLL,
HL_GAUDI_HBM_PLL,
HL_GAUDI_NIC_PLL,
HL_GAUDI_DMA_PLL,
HL_GAUDI_MESH_PLL,
HL_GAUDI_MME_PLL,
HL_GAUDI_TPC_PLL,
HL_GAUDI_IF_PLL,
HL_GAUDI_PLL_MAX
};
/**
* enum hl_device_status - Device status information.
* @HL_DEVICE_STATUS_OPERATIONAL: Device is operational.
* @HL_DEVICE_STATUS_IN_RESET: Device is currently during reset.
* @HL_DEVICE_STATUS_MALFUNCTION: Device is unusable.
* @HL_DEVICE_STATUS_NEEDS_RESET: Device needs reset because auto reset was disabled.
* @HL_DEVICE_STATUS_IN_DEVICE_CREATION: Device is operational but its creation is still in
* progress.
* @HL_DEVICE_STATUS_LAST: Last status.
*/
enum hl_device_status {
HL_DEVICE_STATUS_OPERATIONAL,
HL_DEVICE_STATUS_IN_RESET,
HL_DEVICE_STATUS_MALFUNCTION,
HL_DEVICE_STATUS_NEEDS_RESET,
HL_DEVICE_STATUS_IN_DEVICE_CREATION,
HL_DEVICE_STATUS_LAST = HL_DEVICE_STATUS_IN_DEVICE_CREATION
};
enum hl_server_type {
HL_SERVER_TYPE_UNKNOWN = 0,
HL_SERVER_GAUDI_HLS1 = 1,
HL_SERVER_GAUDI_HLS1H = 2,
HL_SERVER_GAUDI_TYPE1 = 3,
HL_SERVER_GAUDI_TYPE2 = 4
};
/* Opcode for management ioctl
*
* HW_IP_INFO - Receive information about different IP blocks in the
* device.
* HL_INFO_HW_EVENTS - Receive an array describing how many times each event
* occurred since the last hard reset.
* HL_INFO_DRAM_USAGE - Retrieve the dram usage inside the device and of the
* specific context. This is relevant only for devices
* where the dram is managed by the kernel driver
* HL_INFO_HW_IDLE - Retrieve information about the idle status of each
* internal engine.
* HL_INFO_DEVICE_STATUS - Retrieve the device's status. This opcode doesn't
* require an open context.
* HL_INFO_DEVICE_UTILIZATION - Retrieve the total utilization of the device
* over the last period specified by the user.
* The period can be between 100ms to 1s, in
* resolution of 100ms. The return value is a
* percentage of the utilization rate.
* HL_INFO_HW_EVENTS_AGGREGATE - Receive an array describing how many times each
* event occurred since the driver was loaded.
* HL_INFO_CLK_RATE - Retrieve the current and maximum clock rate
* of the device in MHz. The maximum clock rate is
* configurable via sysfs parameter
* HL_INFO_RESET_COUNT - Retrieve the counts of the soft and hard reset
* operations performed on the device since the last
* time the driver was loaded.
* HL_INFO_TIME_SYNC - Retrieve the device's time alongside the host's time
* for synchronization.
* HL_INFO_CS_COUNTERS - Retrieve command submission counters
* HL_INFO_PCI_COUNTERS - Retrieve PCI counters
* HL_INFO_CLK_THROTTLE_REASON - Retrieve clock throttling reason
* HL_INFO_SYNC_MANAGER - Retrieve sync manager info per dcore
* HL_INFO_TOTAL_ENERGY - Retrieve total energy consumption
* HL_INFO_PLL_FREQUENCY - Retrieve PLL frequency
* HL_INFO_OPEN_STATS - Retrieve info regarding recent device open calls
*/
#define HL_INFO_HW_IP_INFO 0
#define HL_INFO_HW_EVENTS 1
#define HL_INFO_DRAM_USAGE 2
#define HL_INFO_HW_IDLE 3
#define HL_INFO_DEVICE_STATUS 4
#define HL_INFO_DEVICE_UTILIZATION 6
#define HL_INFO_HW_EVENTS_AGGREGATE 7
#define HL_INFO_CLK_RATE 8
#define HL_INFO_RESET_COUNT 9
#define HL_INFO_TIME_SYNC 10
#define HL_INFO_CS_COUNTERS 11
#define HL_INFO_PCI_COUNTERS 12
#define HL_INFO_CLK_THROTTLE_REASON 13
#define HL_INFO_SYNC_MANAGER 14
#define HL_INFO_TOTAL_ENERGY 15
#define HL_INFO_PLL_FREQUENCY 16
#define HL_INFO_POWER 17
#define HL_INFO_OPEN_STATS 18
#define HL_INFO_VERSION_MAX_LEN 128
#define HL_INFO_CARD_NAME_MAX_LEN 16
/**
* struct hl_info_hw_ip_info - hardware information on various IPs in the ASIC
* @sram_base_address: The first SRAM physical base address that is free to be
* used by the user.
* @dram_base_address: The first DRAM virtual or physical base address that is
* free to be used by the user.
* @dram_size: The DRAM size that is available to the user.
* @sram_size: The SRAM size that is available to the user.
* @num_of_events: The number of events that can be received from the f/w. This
* is needed so the user can what is the size of the h/w events
* array he needs to pass to the kernel when he wants to fetch
* the event counters.
* @device_id: PCI device ID of the ASIC.
* @module_id: Module ID of the ASIC for mezzanine cards in servers
* (From OCP spec).
* @first_available_interrupt_id: The first available interrupt ID for the user
* to be used when it works with user interrupts.
* @server_type: Server type that the Gaudi ASIC is currently installed in.
* The value is according to enum hl_server_type
* @cpld_version: CPLD version on the board.
* @psoc_pci_pll_nr: PCI PLL NR value. Needed by the profiler in some ASICs.
* @psoc_pci_pll_nf: PCI PLL NF value. Needed by the profiler in some ASICs.
* @psoc_pci_pll_od: PCI PLL OD value. Needed by the profiler in some ASICs.
* @psoc_pci_pll_div_factor: PCI PLL DIV factor value. Needed by the profiler
* in some ASICs.
* @tpc_enabled_mask: Bit-mask that represents which TPCs are enabled. Relevant
* for Goya/Gaudi only.
* @dram_enabled: Whether the DRAM is enabled.
* @cpucp_version: The CPUCP f/w version.
* @card_name: The card name as passed by the f/w.
* @dram_page_size: The DRAM physical page size.
*/
struct hl_info_hw_ip_info {
__u64 sram_base_address;
__u64 dram_base_address;
__u64 dram_size;
__u32 sram_size;
__u32 num_of_events;
__u32 device_id;
__u32 module_id;
__u32 reserved;
__u16 first_available_interrupt_id;
__u16 server_type;
__u32 cpld_version;
__u32 psoc_pci_pll_nr;
__u32 psoc_pci_pll_nf;
__u32 psoc_pci_pll_od;
__u32 psoc_pci_pll_div_factor;
__u8 tpc_enabled_mask;
__u8 dram_enabled;
__u8 pad[2];
__u8 cpucp_version[HL_INFO_VERSION_MAX_LEN];
__u8 card_name[HL_INFO_CARD_NAME_MAX_LEN];
__u64 reserved2;
__u64 dram_page_size;
};
struct hl_info_dram_usage {
__u64 dram_free_mem;
__u64 ctx_dram_mem;
};
#define HL_BUSY_ENGINES_MASK_EXT_SIZE 2
struct hl_info_hw_idle {
__u32 is_idle;
/*
* Bitmask of busy engines.
* Bits definition is according to `enum <chip>_enging_id'.
*/
__u32 busy_engines_mask;
/*
* Extended Bitmask of busy engines.
* Bits definition is according to `enum <chip>_enging_id'.
*/
__u64 busy_engines_mask_ext[HL_BUSY_ENGINES_MASK_EXT_SIZE];
};
struct hl_info_device_status {
__u32 status;
__u32 pad;
};
struct hl_info_device_utilization {
__u32 utilization;
__u32 pad;
};
struct hl_info_clk_rate {
__u32 cur_clk_rate_mhz;
__u32 max_clk_rate_mhz;
};
struct hl_info_reset_count {
__u32 hard_reset_cnt;
__u32 soft_reset_cnt;
};
struct hl_info_time_sync {
__u64 device_time;
__u64 host_time;
};
/**
* struct hl_info_pci_counters - pci counters
* @rx_throughput: PCI rx throughput KBps
* @tx_throughput: PCI tx throughput KBps
* @replay_cnt: PCI replay counter
*/
struct hl_info_pci_counters {
__u64 rx_throughput;
__u64 tx_throughput;
__u64 replay_cnt;
};
#define HL_CLK_THROTTLE_POWER 0x1
#define HL_CLK_THROTTLE_THERMAL 0x2
/**
* struct hl_info_clk_throttle - clock throttling reason
* @clk_throttling_reason: each bit represents a clk throttling reason
*/
struct hl_info_clk_throttle {
__u32 clk_throttling_reason;
};
/**
* struct hl_info_energy - device energy information
* @total_energy_consumption: total device energy consumption
*/
struct hl_info_energy {
__u64 total_energy_consumption;
};
#define HL_PLL_NUM_OUTPUTS 4
struct hl_pll_frequency_info {
__u16 output[HL_PLL_NUM_OUTPUTS];
};
/**
* struct hl_open_stats_info - device open statistics information
* @open_counter: ever growing counter, increased on each successful dev open
* @last_open_period_ms: duration (ms) device was open last time
*/
struct hl_open_stats_info {
__u64 open_counter;
__u64 last_open_period_ms;
};
/**
* struct hl_power_info - power information
* @power: power consumption
*/
struct hl_power_info {
__u64 power;
};
/**
* struct hl_info_sync_manager - sync manager information
* @first_available_sync_object: first available sob
* @first_available_monitor: first available monitor
* @first_available_cq: first available cq
*/
struct hl_info_sync_manager {
__u32 first_available_sync_object;
__u32 first_available_monitor;
__u32 first_available_cq;
__u32 reserved;
};
/**
* struct hl_info_cs_counters - command submission counters
* @total_out_of_mem_drop_cnt: total dropped due to memory allocation issue
* @ctx_out_of_mem_drop_cnt: context dropped due to memory allocation issue
* @total_parsing_drop_cnt: total dropped due to error in packet parsing
* @ctx_parsing_drop_cnt: context dropped due to error in packet parsing
* @total_queue_full_drop_cnt: total dropped due to queue full
* @ctx_queue_full_drop_cnt: context dropped due to queue full
* @total_device_in_reset_drop_cnt: total dropped due to device in reset
* @ctx_device_in_reset_drop_cnt: context dropped due to device in reset
* @total_max_cs_in_flight_drop_cnt: total dropped due to maximum CS in-flight
* @ctx_max_cs_in_flight_drop_cnt: context dropped due to maximum CS in-flight
* @total_validation_drop_cnt: total dropped due to validation error
* @ctx_validation_drop_cnt: context dropped due to validation error
*/
struct hl_info_cs_counters {
__u64 total_out_of_mem_drop_cnt;
__u64 ctx_out_of_mem_drop_cnt;
__u64 total_parsing_drop_cnt;
__u64 ctx_parsing_drop_cnt;
__u64 total_queue_full_drop_cnt;
__u64 ctx_queue_full_drop_cnt;
__u64 total_device_in_reset_drop_cnt;
__u64 ctx_device_in_reset_drop_cnt;
__u64 total_max_cs_in_flight_drop_cnt;
__u64 ctx_max_cs_in_flight_drop_cnt;
__u64 total_validation_drop_cnt;
__u64 ctx_validation_drop_cnt;
};
enum gaudi_dcores {
HL_GAUDI_WS_DCORE,
HL_GAUDI_WN_DCORE,
HL_GAUDI_EN_DCORE,
HL_GAUDI_ES_DCORE
};
/**
* struct hl_info_args - Main structure to retrieve device related information.
* @return_pointer: User space address of the relevant structure related to HL_INFO_* operation
* mentioned in @op.
* @return_size: Size of the structure used in @return_pointer, just like "size" in "snprintf", it
* limits how many bytes the kernel can write. For hw_events array, the size should be
* hl_info_hw_ip_info.num_of_events * sizeof(__u32).
* @op: Defines which type of information to be retrieved. Refer HL_INFO_* for details.
* @dcore_id: DCORE id for which the information is relevant (for Gaudi refer to enum gaudi_dcores).
* @ctx_id: Context ID of the user. Currently not in use.
* @period_ms: Period value, in milliseconds, for utilization rate in range 100ms - 1000ms in 100 ms
* resolution. Currently not in use.
* @pll_index: Index as defined in hl_<asic type>_pll_index enumeration.
* @pad: Padding to 64 bit.
*/
struct hl_info_args {
__u64 return_pointer;
__u32 return_size;
__u32 op;
union {
__u32 dcore_id;
__u32 ctx_id;
__u32 period_ms;
__u32 pll_index;
};
__u32 pad;
};
/* Opcode to create a new command buffer */
#define HL_CB_OP_CREATE 0
/* Opcode to destroy previously created command buffer */
#define HL_CB_OP_DESTROY 1
/* Opcode to retrieve information about a command buffer */
#define HL_CB_OP_INFO 2
/* 2MB minus 32 bytes for 2xMSG_PROT */
#define HL_MAX_CB_SIZE (0x200000 - 32)
/* Indicates whether the command buffer should be mapped to the device's MMU */
#define HL_CB_FLAGS_MAP 0x1
struct hl_cb_in {
/* Handle of CB or 0 if we want to create one */
__u64 cb_handle;
/* HL_CB_OP_* */
__u32 op;
/* Size of CB. Maximum size is HL_MAX_CB_SIZE. The minimum size that
* will be allocated, regardless of this parameter's value, is PAGE_SIZE
*/
__u32 cb_size;
/* Context ID - Currently not in use */
__u32 ctx_id;
/* HL_CB_FLAGS_* */
__u32 flags;
};
struct hl_cb_out {
union {
/* Handle of CB */
__u64 cb_handle;
/* Information about CB */
struct {
/* Usage count of CB */
__u32 usage_cnt;
__u32 pad;
};
};
};
union hl_cb_args {
struct hl_cb_in in;
struct hl_cb_out out;
};
/* HL_CS_CHUNK_FLAGS_ values
*
* HL_CS_CHUNK_FLAGS_USER_ALLOC_CB:
* Indicates if the CB was allocated and mapped by userspace.
* User allocated CB is a command buffer allocated by the user, via malloc
* (or similar). After allocating the CB, the user invokes “memory ioctl”
* to map the user memory into a device virtual address. The user provides
* this address via the cb_handle field. The interface provides the
* ability to create a large CBs, Which aren’t limited to
* “HL_MAX_CB_SIZE”. Therefore, it increases the PCI-DMA queues
* throughput. This CB allocation method also reduces the use of Linux
* DMA-able memory pool. Which are limited and used by other Linux
* sub-systems.
*/
#define HL_CS_CHUNK_FLAGS_USER_ALLOC_CB 0x1
/*
* This structure size must always be fixed to 64-bytes for backward
* compatibility
*/
struct hl_cs_chunk {
union {
/* For external queue, this represents a Handle of CB on the
* Host.
* For internal queue in Goya, this represents an SRAM or
* a DRAM address of the internal CB. In Gaudi, this might also
* represent a mapped host address of the CB.
*
* A mapped host address is in the device address space, after
* a host address was mapped by the device MMU.
*/
__u64 cb_handle;
/* Relevant only when HL_CS_FLAGS_WAIT or
* HL_CS_FLAGS_COLLECTIVE_WAIT is set
* This holds address of array of u64 values that contain
* signal CS sequence numbers. The wait described by
* this job will listen on all those signals
* (wait event per signal)
*/
__u64 signal_seq_arr;
/*
* Relevant only when HL_CS_FLAGS_WAIT or
* HL_CS_FLAGS_COLLECTIVE_WAIT is set
* along with HL_CS_FLAGS_ENCAP_SIGNALS.
* This is the CS sequence which has the encapsulated signals.
*/
__u64 encaps_signal_seq;
};
/* Index of queue to put the CB on */
__u32 queue_index;
union {
/*
* Size of command buffer with valid packets
* Can be smaller then actual CB size
*/
__u32 cb_size;
/* Relevant only when HL_CS_FLAGS_WAIT or
* HL_CS_FLAGS_COLLECTIVE_WAIT is set.
* Number of entries in signal_seq_arr
*/
__u32 num_signal_seq_arr;
/* Relevant only when HL_CS_FLAGS_WAIT or
* HL_CS_FLAGS_COLLECTIVE_WAIT is set along
* with HL_CS_FLAGS_ENCAP_SIGNALS
* This set the signals range that the user want to wait for
* out of the whole reserved signals range.
* e.g if the signals range is 20, and user don't want
* to wait for signal 8, so he set this offset to 7, then
* he call the API again with 9 and so on till 20.
*/
__u32 encaps_signal_offset;
};
/* HL_CS_CHUNK_FLAGS_* */
__u32 cs_chunk_flags;
/* Relevant only when HL_CS_FLAGS_COLLECTIVE_WAIT is set.
* This holds the collective engine ID. The wait described by this job
* will sync with this engine and with all NICs before completion.
*/
__u32 collective_engine_id;
/* Align structure to 64 bytes */
__u32 pad[10];
};
/* SIGNAL and WAIT/COLLECTIVE_WAIT flags are mutually exclusive */
#define HL_CS_FLAGS_FORCE_RESTORE 0x1
#define HL_CS_FLAGS_SIGNAL 0x2
#define HL_CS_FLAGS_WAIT 0x4
#define HL_CS_FLAGS_COLLECTIVE_WAIT 0x8
#define HL_CS_FLAGS_TIMESTAMP 0x20
#define HL_CS_FLAGS_STAGED_SUBMISSION 0x40
#define HL_CS_FLAGS_STAGED_SUBMISSION_FIRST 0x80
#define HL_CS_FLAGS_STAGED_SUBMISSION_LAST 0x100
#define HL_CS_FLAGS_CUSTOM_TIMEOUT 0x200
#define HL_CS_FLAGS_SKIP_RESET_ON_TIMEOUT 0x400
/*
* The encapsulated signals CS is merged into the existing CS ioctls.
* In order to use this feature need to follow the below procedure:
* 1. Reserve signals, set the CS type to HL_CS_FLAGS_RESERVE_SIGNALS_ONLY
* the output of this API will be the SOB offset from CFG_BASE.
* this address will be used to patch CB cmds to do the signaling for this
* SOB by incrementing it's value.
* for reverting the reservation use HL_CS_FLAGS_UNRESERVE_SIGNALS_ONLY
* CS type, note that this might fail if out-of-sync happened to the SOB
* value, in case other signaling request to the same SOB occurred between
* reserve-unreserve calls.
* 2. Use the staged CS to do the encapsulated signaling jobs.
* use HL_CS_FLAGS_STAGED_SUBMISSION and HL_CS_FLAGS_STAGED_SUBMISSION_FIRST
* along with HL_CS_FLAGS_ENCAP_SIGNALS flag, and set encaps_signal_offset
* field. This offset allows app to wait on part of the reserved signals.
* 3. Use WAIT/COLLECTIVE WAIT CS along with HL_CS_FLAGS_ENCAP_SIGNALS flag
* to wait for the encapsulated signals.
*/
#define HL_CS_FLAGS_ENCAP_SIGNALS 0x800
#define HL_CS_FLAGS_RESERVE_SIGNALS_ONLY 0x1000
#define HL_CS_FLAGS_UNRESERVE_SIGNALS_ONLY 0x2000
#define HL_CS_STATUS_SUCCESS 0
#define HL_MAX_JOBS_PER_CS 512
struct hl_cs_in {
/* this holds address of array of hl_cs_chunk for restore phase */
__u64 chunks_restore;
/* holds address of array of hl_cs_chunk for execution phase */
__u64 chunks_execute;
union {
/*
* Sequence number of a staged submission CS
* valid only if HL_CS_FLAGS_STAGED_SUBMISSION is set and
* HL_CS_FLAGS_STAGED_SUBMISSION_FIRST is unset.
*/
__u64 seq;
/*
* Encapsulated signals handle id
* Valid for two flows:
* 1. CS with encapsulated signals:
* when HL_CS_FLAGS_STAGED_SUBMISSION and
* HL_CS_FLAGS_STAGED_SUBMISSION_FIRST
* and HL_CS_FLAGS_ENCAP_SIGNALS are set.
* 2. unreserve signals:
* valid when HL_CS_FLAGS_UNRESERVE_SIGNALS_ONLY is set.
*/
__u32 encaps_sig_handle_id;
/* Valid only when HL_CS_FLAGS_RESERVE_SIGNALS_ONLY is set */
struct {
/* Encapsulated signals number */
__u32 encaps_signals_count;
/* Encapsulated signals queue index (stream) */
__u32 encaps_signals_q_idx;
};
};
/* Number of chunks in restore phase array. Maximum number is
* HL_MAX_JOBS_PER_CS
*/
__u32 num_chunks_restore;
/* Number of chunks in execution array. Maximum number is
* HL_MAX_JOBS_PER_CS
*/
__u32 num_chunks_execute;
/* timeout in seconds - valid only if HL_CS_FLAGS_CUSTOM_TIMEOUT
* is set
*/
__u32 timeout;
/* HL_CS_FLAGS_* */
__u32 cs_flags;
/* Context ID - Currently not in use */
__u32 ctx_id;
};
struct hl_cs_out {
union {
/*
* seq holds the sequence number of the CS to pass to wait
* ioctl. All values are valid except for 0 and ULLONG_MAX
*/
__u64 seq;
/* Valid only when HL_CS_FLAGS_RESERVE_SIGNALS_ONLY is set */
struct {
/* This is the resereved signal handle id */
__u32 handle_id;
/* This is the signals count */
__u32 count;
};
};
/* HL_CS_STATUS */
__u32 status;
/*
* SOB base address offset
* Valid only when HL_CS_FLAGS_RESERVE_SIGNALS_ONLY is set
*/
__u32 sob_base_addr_offset;
};
union hl_cs_args {
struct hl_cs_in in;
struct hl_cs_out out;
};
#define HL_WAIT_CS_FLAGS_INTERRUPT 0x2
#define HL_WAIT_CS_FLAGS_INTERRUPT_MASK 0xFFF00000
#define HL_WAIT_CS_FLAGS_MULTI_CS 0x4
#define HL_WAIT_MULTI_CS_LIST_MAX_LEN 32
struct hl_wait_cs_in {
union {
struct {
/*
* In case of wait_cs holds the CS sequence number.
* In case of wait for multi CS hold a user pointer to
* an array of CS sequence numbers
*/
__u64 seq;
/* Absolute timeout to wait for command submission
* in microseconds
*/
__u64 timeout_us;
};
struct {
/* User address for completion comparison.
* upon interrupt, driver will compare the value pointed
* by this address with the supplied target value.
* in order not to perform any comparison, set address
* to all 1s.
* Relevant only when HL_WAIT_CS_FLAGS_INTERRUPT is set
*/
__u64 addr;
/* Target value for completion comparison */
__u64 target;
};
};
/* Context ID - Currently not in use */
__u32 ctx_id;
/* HL_WAIT_CS_FLAGS_*
* If HL_WAIT_CS_FLAGS_INTERRUPT is set, this field should include
* interrupt id according to HL_WAIT_CS_FLAGS_INTERRUPT_MASK, in order
* not to specify an interrupt id ,set mask to all 1s.
*/
__u32 flags;
/* Multi CS API info- valid entries in multi-CS array */
__u8 seq_arr_len;
__u8 pad[3];
/* Absolute timeout to wait for an interrupt in microseconds.
* Relevant only when HL_WAIT_CS_FLAGS_INTERRUPT is set
*/
__u32 interrupt_timeout_us;
};
#define HL_WAIT_CS_STATUS_COMPLETED 0
#define HL_WAIT_CS_STATUS_BUSY 1
#define HL_WAIT_CS_STATUS_TIMEDOUT 2
#define HL_WAIT_CS_STATUS_ABORTED 3
#define HL_WAIT_CS_STATUS_FLAG_GONE 0x1
#define HL_WAIT_CS_STATUS_FLAG_TIMESTAMP_VLD 0x2
struct hl_wait_cs_out {
/* HL_WAIT_CS_STATUS_* */
__u32 status;
/* HL_WAIT_CS_STATUS_FLAG* */
__u32 flags;
/*
* valid only if HL_WAIT_CS_STATUS_FLAG_TIMESTAMP_VLD is set
* for wait_cs: timestamp of CS completion
* for wait_multi_cs: timestamp of FIRST CS completion
*/
__s64 timestamp_nsec;
/* multi CS completion bitmap */
__u32 cs_completion_map;
__u32 pad;
};
union hl_wait_cs_args {
struct hl_wait_cs_in in;
struct hl_wait_cs_out out;
};
/* Opcode to allocate device memory */
#define HL_MEM_OP_ALLOC 0
/* Opcode to free previously allocated device memory */
#define HL_MEM_OP_FREE 1
/* Opcode to map host and device memory */
#define HL_MEM_OP_MAP 2
/* Opcode to unmap previously mapped host and device memory */
#define HL_MEM_OP_UNMAP 3
/* Opcode to map a hw block */
#define HL_MEM_OP_MAP_BLOCK 4
/* Opcode to create DMA-BUF object for an existing device memory allocation
* and to export an FD of that DMA-BUF back to the caller
*/
#define HL_MEM_OP_EXPORT_DMABUF_FD 5
/* Memory flags */
#define HL_MEM_CONTIGUOUS 0x1
#define HL_MEM_SHARED 0x2
#define HL_MEM_USERPTR 0x4
#define HL_MEM_FORCE_HINT 0x8
struct hl_mem_in {
union {
/* HL_MEM_OP_ALLOC- allocate device memory */
struct {
/* Size to alloc */
__u64 mem_size;
} alloc;
/* HL_MEM_OP_FREE - free device memory */
struct {
/* Handle returned from HL_MEM_OP_ALLOC */
__u64 handle;
} free;
/* HL_MEM_OP_MAP - map device memory */
struct {
/*
* Requested virtual address of mapped memory.
* The driver will try to map the requested region to
* this hint address, as long as the address is valid
* and not already mapped. The user should check the
* returned address of the IOCTL to make sure he got
* the hint address. Passing 0 here means that the
* driver will choose the address itself.
*/
__u64 hint_addr;
/* Handle returned from HL_MEM_OP_ALLOC */
__u64 handle;
} map_device;
/* HL_MEM_OP_MAP - map host memory */
struct {
/* Address of allocated host memory */
__u64 host_virt_addr;
/*
* Requested virtual address of mapped memory.
* The driver will try to map the requested region to
* this hint address, as long as the address is valid
* and not already mapped. The user should check the
* returned address of the IOCTL to make sure he got
* the hint address. Passing 0 here means that the
* driver will choose the address itself.
*/
__u64 hint_addr;
/* Size of allocated host memory */
__u64 mem_size;
} map_host;
/* HL_MEM_OP_MAP_BLOCK - map a hw block */
struct {
/*
* HW block address to map, a handle and size will be
* returned to the user and will be used to mmap the
* relevant block. Only addresses from configuration
* space are allowed.
*/
__u64 block_addr;
} map_block;
/* HL_MEM_OP_UNMAP - unmap host memory */
struct {
/* Virtual address returned from HL_MEM_OP_MAP */
__u64 device_virt_addr;
} unmap;
/* HL_MEM_OP_EXPORT_DMABUF_FD */
struct {
/* Handle returned from HL_MEM_OP_ALLOC. In Gaudi,
* where we don't have MMU for the device memory, the
* driver expects a physical address (instead of
* a handle) in the device memory space.
*/
__u64 handle;
/* Size of memory allocation. Relevant only for GAUDI */
__u64 mem_size;
} export_dmabuf_fd;
};
/* HL_MEM_OP_* */
__u32 op;
/* HL_MEM_* flags.
* For the HL_MEM_OP_EXPORT_DMABUF_FD opcode, this field holds the
* DMA-BUF file/FD flags.
*/
__u32 flags;
/* Context ID - Currently not in use */
__u32 ctx_id;
__u32 pad;
};
struct hl_mem_out {
union {
/*
* Used for HL_MEM_OP_MAP as the virtual address that was
* assigned in the device VA space.
* A value of 0 means the requested operation failed.
*/
__u64 device_virt_addr;
/*
* Used in HL_MEM_OP_ALLOC
* This is the assigned handle for the allocated memory
*/
__u64 handle;
struct {
/*
* Used in HL_MEM_OP_MAP_BLOCK.
* This is the assigned handle for the mapped block
*/
__u64 block_handle;
/*
* Used in HL_MEM_OP_MAP_BLOCK
* This is the size of the mapped block
*/
__u32 block_size;
__u32 pad;
};
/* Returned in HL_MEM_OP_EXPORT_DMABUF_FD. Represents the
* DMA-BUF object that was created to describe a memory
* allocation on the device's memory space. The FD should be
* passed to the importer driver
*/
__s32 fd;
};
};
union hl_mem_args {
struct hl_mem_in in;
struct hl_mem_out out;
};
#define HL_DEBUG_MAX_AUX_VALUES 10
struct hl_debug_params_etr {
/* Address in memory to allocate buffer */
__u64 buffer_address;
/* Size of buffer to allocate */
__u64 buffer_size;
/* Sink operation mode: SW fifo, HW fifo, Circular buffer */
__u32 sink_mode;
__u32 pad;
};
struct hl_debug_params_etf {
/* Address in memory to allocate buffer */
__u64 buffer_address;
/* Size of buffer to allocate */
__u64 buffer_size;
/* Sink operation mode: SW fifo, HW fifo, Circular buffer */
__u32 sink_mode;
__u32 pad;
};
struct hl_debug_params_stm {
/* Two bit masks for HW event and Stimulus Port */
__u64 he_mask;
__u64 sp_mask;
/* Trace source ID */
__u32 id;
/* Frequency for the timestamp register */
__u32 frequency;
};
struct hl_debug_params_bmon {
/* Two address ranges that the user can request to filter */
__u64 start_addr0;
__u64 addr_mask0;
__u64 start_addr1;
__u64 addr_mask1;
/* Capture window configuration */
__u32 bw_win;
__u32 win_capture;
/* Trace source ID */
__u32 id;
__u32 pad;
};
struct hl_debug_params_spmu {
/* Event types selection */
__u64 event_types[HL_DEBUG_MAX_AUX_VALUES];
/* Number of event types selection */
__u32 event_types_num;
__u32 pad;
};
/* Opcode for ETR component */
#define HL_DEBUG_OP_ETR 0
/* Opcode for ETF component */
#define HL_DEBUG_OP_ETF 1
/* Opcode for STM component */
#define HL_DEBUG_OP_STM 2
/* Opcode for FUNNEL component */
#define HL_DEBUG_OP_FUNNEL 3
/* Opcode for BMON component */
#define HL_DEBUG_OP_BMON 4
/* Opcode for SPMU component */
#define HL_DEBUG_OP_SPMU 5
/* Opcode for timestamp (deprecated) */
#define HL_DEBUG_OP_TIMESTAMP 6
/* Opcode for setting the device into or out of debug mode. The enable
* variable should be 1 for enabling debug mode and 0 for disabling it
*/
#define HL_DEBUG_OP_SET_MODE 7
struct hl_debug_args {
/*
* Pointer to user input structure.
* This field is relevant to specific opcodes.
*/
__u64 input_ptr;
/* Pointer to user output structure */
__u64 output_ptr;
/* Size of user input structure */
__u32 input_size;
/* Size of user output structure */
__u32 output_size;
/* HL_DEBUG_OP_* */
__u32 op;
/*
* Register index in the component, taken from the debug_regs_index enum
* in the various ASIC header files
*/
__u32 reg_idx;
/* Enable/disable */
__u32 enable;
/* Context ID - Currently not in use */
__u32 ctx_id;
};
/*
* Various information operations such as:
* - H/W IP information
* - Current dram usage
*
* The user calls this IOCTL with an opcode that describes the required
* information. The user should supply a pointer to a user-allocated memory
* chunk, which will be filled by the driver with the requested information.
*
* The user supplies the maximum amount of size to copy into the user's memory,
* in order to prevent data corruption in case of differences between the
* definitions of structures in kernel and userspace, e.g. in case of old
* userspace and new kernel driver
*/
#define HL_IOCTL_INFO \
_IOWR('H', 0x01, struct hl_info_args)
/*
* Command Buffer
* - Request a Command Buffer
* - Destroy a Command Buffer
*
* The command buffers are memory blocks that reside in DMA-able address
* space and are physically contiguous so they can be accessed by the device
* directly. They are allocated using the coherent DMA API.
*
* When creating a new CB, the IOCTL returns a handle of it, and the user-space
* process needs to use that handle to mmap the buffer so it can access them.
*
* In some instances, the device must access the command buffer through the
* device's MMU, and thus its memory should be mapped. In these cases, user can
* indicate the driver that such a mapping is required.
* The resulting device virtual address will be used internally by the driver,
* and won't be returned to user.
*
*/
#define HL_IOCTL_CB \
_IOWR('H', 0x02, union hl_cb_args)
/*
* Command Submission
*
* To submit work to the device, the user need to call this IOCTL with a set
* of JOBS. That set of JOBS constitutes a CS object.
* Each JOB will be enqueued on a specific queue, according to the user's input.
* There can be more then one JOB per queue.
*
* The CS IOCTL will receive two sets of JOBS. One set is for "restore" phase
* and a second set is for "execution" phase.
* The JOBS on the "restore" phase are enqueued only after context-switch
* (or if its the first CS for this context). The user can also order the
* driver to run the "restore" phase explicitly
*
* There are two types of queues - external and internal. External queues
* are DMA queues which transfer data from/to the Host. All other queues are
* internal. The driver will get completion notifications from the device only
* on JOBS which are enqueued in the external queues.
*
* For jobs on external queues, the user needs to create command buffers
* through the CB ioctl and give the CB's handle to the CS ioctl. For jobs on
* internal queues, the user needs to prepare a "command buffer" with packets
* on either the device SRAM/DRAM or the host, and give the device address of
* that buffer to the CS ioctl.
*
* This IOCTL is asynchronous in regard to the actual execution of the CS. This
* means it returns immediately after ALL the JOBS were enqueued on their
* relevant queues. Therefore, the user mustn't assume the CS has been completed
* or has even started to execute.
*
* Upon successful enqueue, the IOCTL returns a sequence number which the user
* can use with the "Wait for CS" IOCTL to check whether the handle's CS
* external JOBS have been completed. Note that if the CS has internal JOBS
* which can execute AFTER the external JOBS have finished, the driver might
* report that the CS has finished executing BEFORE the internal JOBS have
* actually finished executing.
*
* Even though the sequence number increments per CS, the user can NOT
* automatically assume that if CS with sequence number N finished, then CS
* with sequence number N-1 also finished. The user can make this assumption if
* and only if CS N and CS N-1 are exactly the same (same CBs for the same
* queues).
*/
#define HL_IOCTL_CS \
_IOWR('H', 0x03, union hl_cs_args)
/*
* Wait for Command Submission
*
* The user can call this IOCTL with a handle it received from the CS IOCTL
* to wait until the handle's CS has finished executing. The user will wait
* inside the kernel until the CS has finished or until the user-requested
* timeout has expired.
*
* If the timeout value is 0, the driver won't sleep at all. It will check
* the status of the CS and return immediately
*
* The return value of the IOCTL is a standard Linux error code. The possible
* values are:
*
* EINTR - Kernel waiting has been interrupted, e.g. due to OS signal
* that the user process received
* ETIMEDOUT - The CS has caused a timeout on the device
* EIO - The CS was aborted (usually because the device was reset)
* ENODEV - The device wants to do hard-reset (so user need to close FD)
*
* The driver also returns a custom define in case the IOCTL call returned 0.
* The define can be one of the following:
*
* HL_WAIT_CS_STATUS_COMPLETED - The CS has been completed successfully (0)
* HL_WAIT_CS_STATUS_BUSY - The CS is still executing (0)
* HL_WAIT_CS_STATUS_TIMEDOUT - The CS has caused a timeout on the device
* (ETIMEDOUT)
* HL_WAIT_CS_STATUS_ABORTED - The CS was aborted, usually because the
* device was reset (EIO)
*/
#define HL_IOCTL_WAIT_CS \
_IOWR('H', 0x04, union hl_wait_cs_args)
/*
* Memory
* - Map host memory to device MMU
* - Unmap host memory from device MMU
*
* This IOCTL allows the user to map host memory to the device MMU
*
* For host memory, the IOCTL doesn't allocate memory. The user is supposed
* to allocate the memory in user-space (malloc/new). The driver pins the
* physical pages (up to the allowed limit by the OS), assigns a virtual
* address in the device VA space and initializes the device MMU.
*
* There is an option for the user to specify the requested virtual address.
*
*/
#define HL_IOCTL_MEMORY \
_IOWR('H', 0x05, union hl_mem_args)
/*
* Debug
* - Enable/disable the ETR/ETF/FUNNEL/STM/BMON/SPMU debug traces
*
* This IOCTL allows the user to get debug traces from the chip.
*
* Before the user can send configuration requests of the various
* debug/profile engines, it needs to set the device into debug mode.
* This is because the debug/profile infrastructure is shared component in the
* device and we can't allow multiple users to access it at the same time.
*
* Once a user set the device into debug mode, the driver won't allow other
* users to "work" with the device, i.e. open a FD. If there are multiple users
* opened on the device, the driver won't allow any user to debug the device.
*
* For each configuration request, the user needs to provide the register index
* and essential data such as buffer address and size.
*
* Once the user has finished using the debug/profile engines, he should
* set the device into non-debug mode, i.e. disable debug mode.
*
* The driver can decide to "kick out" the user if he abuses this interface.
*
*/
#define HL_IOCTL_DEBUG \
_IOWR('H', 0x06, struct hl_debug_args)
#define HL_COMMAND_START 0x01
#define HL_COMMAND_END 0x07
#endif /* HABANALABS_H_ */
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