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driver-minion.c
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driver-minion.c
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/*
* Copyright 2013 Andrew Smith - BlackArrow Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#include "config.h"
#include "compat.h"
#include "miner.h"
#ifndef LINUX
static void minion_detect(__maybe_unused bool hotplug)
{
}
#else
#include <unistd.h>
#include <linux/spi/spidev.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <poll.h>
#define MINION_SPI_BUS 0
#define MINION_SPI_CHIP 0
#define MINION_SPI_SPEED 2000000
#define MINION_SPI_BUFSIZ 1024
#define MINION_CHIPS 32
#define MINION_CORES 99
#define MINION_QUE_HIGH 4
#define MINION_QUE_LOW 2
#define MINION_FFL " - from %s %s() line %d"
#define MINION_FFL_HERE __FILE__, __func__, __LINE__
#define MINION_FFL_PASS file, func, line
#define MINION_FFL_ARGS __maybe_unused const char *file, \
__maybe_unused const char *func, \
__maybe_unused const int line
#define minion_txrx(_task) _minion_txrx(minioncgpu, minioninfo, _task, MINION_FFL_HERE)
#define do_ioctl(_obuf, _osiz, _rbuf, _rsiz) _do_ioctl(minioninfo, _obuf, _osiz, _rbuf, _rsiz, MINION_FFL_HERE)
#define MINION_SYS_REGS 0x00
#define MINION_CORE_REGS 0x10
#define MINION_RES_BUF 0x20
#define MINION_CMD_QUE 0x30
#define MINION_NONCE_RANGES 0x70
#define DATA_SIZ (sizeof(uint32_t))
// All SYS data sizes are DATA_SIZ
#define MINION_SYS_CHIP_SIG 0x00
#define MINION_SYS_CHIP_STA 0x01
#define MINION_SYS_TEMP_CTL 0x03
#define MINION_SYS_FREQ_CTL 0x04
#define MINION_SYS_NONCE_LED 0x05
#define MINION_SYS_MISC_CTL 0x06
#define MINION_SYS_RSTN_CTL 0x07
#define MINION_SYS_INT_ENA 0x08
#define MINION_SYS_INT_CLR 0x09
#define MINION_SYS_INT_STA 0x0a
#define MINION_SYS_FIFO_STA 0x0b
#define MINION_SYS_QUE_TRIG 0x0c
#define MINION_SYS_BUF_TRIG 0x0d
// All SYS data sizes are DATA_SIZ
#define MINION_SYS_SIZ DATA_SIZ
// Header Pin 18 = GPIO5 = BCM 24
#define MINION_GPIO_RESULT_INT_PIN 24
#define MINION_GPIO_SYS "/sys/class/gpio"
#define MINION_GPIO_ENA "/export"
#define MINION_GPIO_ENA_VAL "%d"
#define MINION_GPIO_DIS "/unexport"
#define MINION_GPIO_PIN "/gpio%d"
#define MINION_GPIO_DIR "/direction"
#define MINION_GPIO_DIR_READ "in"
#define MINION_GPIO_DIR_WRITE "out"
#define MINION_GPIO_EDGE "/edge"
#define MINION_GPIO_EDGE_NONE "none"
#define MINION_GPIO_EDGE_RISING "rising"
#define MINION_GPIO_EDGE_FALLING "falling"
#define MINION_GPIO_EDGE_BOTH "both"
#define MINION_GPIO_ACT "/active_low"
#define MINION_GPIO_ACT_LO "1"
#define MINION_GPIO_ACT_HI "0"
#define MINION_GPIO_VALUE "/value"
#define MINION_RESULT_INT 0x01
#define MINION_RESULT_FULL_INT 0x02
#define MINION_CMD_INT 0x04
#define MINION_CMD_FULL_INT 0x08
#define MINION_TEMP_LOW_INT 0x10
#define MINION_TEMP_HI_INT 0x20
#define MINION_ALL_INT MINION_RESULT_INT | \
MINION_RESULT_FULL_INT | \
MINION_CMD_INT | \
MINION_CMD_FULL_INT | \
MINION_TEMP_LOW_INT | \
MINION_TEMP_HI_INT
#define RSTN_CTL_RESET_CORES 0x01
#define RSTN_CTL_FLUSH_RESULTS 0x02
#define RSTN_CTL_FLUSH_CMD_QUEUE 0x04
#define RSTN_CTL_SPI_SW_RSTN 0x08
#define RSTN_CTL_SHA_MGR_RESET 0x10
// Init
#define SYS_RSTN_CTL_INIT (RSTN_CTL_RESET_CORES | \
RSTN_CTL_FLUSH_RESULTS | \
RSTN_CTL_FLUSH_CMD_QUEUE | \
RSTN_CTL_SPI_SW_RSTN | \
RSTN_CTL_SHA_MGR_RESET)
// LP
#define SYS_RSTN_CTL_FLUSH (RSTN_CTL_RESET_CORES | \
RSTN_CTL_SPI_SW_RSTN | \
RSTN_CTL_FLUSH_CMD_QUEUE)
// enable 'no nonce' report
#define SYS_MISC_CTL_DEFAULT 0x04
// CORE data size is DATA_SIZ
#define MINION_CORE_ENA0_31 0x10
#define MINION_CORE_ENA32_63 0x11
#define MINION_CORE_ENA64_95 0x12
#define MINION_CORE_ENA96_98 0x13
#define MINION_CORE_ACT0_31 0x14
#define MINION_CORE_ACT32_63 0x15
#define MINION_CORE_ACT64_95 0x16
#define MINION_CORE_ACT96_98 0x17
// All CORE data sizes are DATA_SIZ
#define MINION_CORE_SIZ DATA_SIZ
// RES data size is minion_result
#define MINION_RES_DATA 0x20
#define MINION_RES_PEEK 0x21
// QUE data size is minion_que
#define MINION_QUE_0 0x30
#define MINION_QUE_R 0x31
// RANGE data sizes are DATA_SIZ
#define MINION_NONCE_START 0x70
#define MINION_NONCE_RANGE 0x71
// This must be >= max txsiz + max rxsiz
#define MINION_BUFSIZ 1024
#define u8tou32(_c, _off) (((uint8_t *)(_c))[(_off)+0] + \
((uint8_t *)(_c))[(_off)+1] * 0x100 + \
((uint8_t *)(_c))[(_off)+2] * 0x10000 + \
((uint8_t *)(_c))[(_off)+3] * 0x1000000 )
#define MINION_ADDR_WRITE 0x7f
#define MINION_ADDR_READ 0x80
#define READ_ADDR(_reg) ((_reg) | MINION_ADDR_READ)
#define WRITE_ADDR(_reg) ((_reg) & MINION_ADDR_WRITE)
#define IS_ADDR_READ(_reg) (((_reg) & MINION_ADDR_READ) == MINION_ADDR_READ)
#define IS_ADDR_WRITE(_reg) (((_reg) & MINION_ADDR_READ) == 0)
#define SET_HEAD_WRITE(_h, _reg) ((_h)->reg) = WRITE_ADDR(_reg)
#define SET_HEAD_READ(_h, _reg) ((_h)->reg) = READ_ADDR(_reg)
#define SET_HEAD_SIZ(_h, _siz) \
do { \
((_h)->siz)[0] = (uint8_t)((_siz) & 0xff); \
((_h)->siz)[1] = (uint8_t)(((_siz) & 0xff00) >> 8); \
} while (0)
struct minion_header {
uint8_t chip;
uint8_t reg;
uint8_t siz[2];
uint8_t data[4]; // placeholder
};
#define HSIZE() (sizeof(struct minion_header) - 4)
#define MINION_NOCHIP_SIG 0x00000000
#define MINION_CHIP_SIG 0xb1ac8a44
/*
* Number of times to try and get the SIG with each chip,
* if the chip returns neither of the above values
* TODO: maybe need some reset between tries, to handle a shift value?
*/
#define MINION_SIG_TRIES 3
/*
* TODO: Finding these means the chip is there - but how to fix it?
* The extra &'s are to ensure there is no sign bit issue since
* the sign bit carry in a C bit-shift is compiler dependent
*/
#define MINION_CHIP_SIG_SHIFT1 (((MINION_CHIP_SIG & 0x0000ffff) << 16) & 0xffff0000)
#define MINION_CHIP_SIG_SHIFT2 (((MINION_CHIP_SIG & 0x00ffffff) << 8) & 0xffffff00)
#define MINION_CHIP_SIG_SHIFT3 (((MINION_CHIP_SIG & 0xffffff00) >> 8) & 0x00ffffff)
#define MINION_CHIP_SIG_SHIFT4 (((MINION_CHIP_SIG & 0xffff0000) >> 16) & 0x0000ffff)
#define STA_TEMP(_sta) ((uint16_t)((_sta)[3] & 0x1f))
#define STA_CORES(_sta) ((uint16_t)((_sta)[2]))
#define STA_FREQ(_sta) ((uint32_t)((_sta)[1]) * 0x100 + (uint32_t)((_sta)[0]))
// Randomly between 1s and 2s per chip
#define MINION_STATS_UPDATE_TIME_mS 1000
#define MINION_STATS_UPDATE_RAND_mS 1000
struct minion_status {
uint16_t temp;
uint16_t cores;
uint32_t freq;
struct timeval last;
};
// TODO: untested/unused
#define ENABLE_CORE(_core, _n) ((_core)->core[_n >> 4] |= (1 << (_n % 8)))
#define CORE_IDLE(_core, _n) ((_core)->core[_n >> 4] & (1 << (_n % 8)))
#define FIFO_RES(_fifo, _off) ((_fifo)[(_off) + 0])
#define RES_GOLD(_res) ((((_res)->status[3]) & 0x80) == 0)
#define RES_CHIP(_res) (((_res)->status[3]) & 0x1f)
#define RES_CORE(_res) ((_res)->status[2])
#define RES_TASK(_res) ((int)((_res)->status[1]) * 0x100 + (int)((_res)->status[0]))
#define RES_NONCE(_res) u8tou32((_res)->nonce, 0)
/*
* This is only valid since we avoid using task_id 0 for work
* However, it isn't really necessary since we only request
* the number of results the result buffer says it has
* However, it is a simple failsafe
*/
#define IS_RESULT(_res) ((_res)->status[1] || (_res)->status[0])
struct minion_result {
uint8_t status[DATA_SIZ];
uint8_t nonce[DATA_SIZ];
};
#define MINION_RES_DATA_SIZ sizeof(struct minion_result)
#define MIDSTATE_BYTES 32
#define MERKLE7_OFFSET 64
#define MERKLE_BYTES 12
#define MINION_MAX_TASK_ID 0xffff
struct minion_que {
uint8_t task_id[2];
uint8_t reserved[2];
uint8_t midstate[MIDSTATE_BYTES];
uint8_t merkle7[DATA_SIZ];
uint8_t ntime[DATA_SIZ];
uint8_t bits[DATA_SIZ];
};
/*
* Max time to wait before checking the task list
* Required, since only urgent tasks trigger an immediate check
* TODO: ? for 2TH/s
*/
#define MINION_TASK_mS 8
/*
* Max time to wait before checking the result list for nonces
* This can be long since it's only a failsafe
* cgsem_post is always sent if there are nonces ready to check
*/
#define MINION_NONCE_mS 888
// Number of results to make a GPIO interrupt
//#define MINION_RESULT_INT_SIZE 1
#define MINION_RESULT_INT_SIZE 2
/*
* Max time to wait before checking for results
* The interrupt doesn't occur until MINION_RESULT_INT_SIZE results are found
* See comment in minion_spi_reply() at poll()
*/
#define MINION_REPLY_mS 88
/*
* Max time to wait before returning the amount of work done
* A result interrupt will send a trigger for this also
* See comment in minion_scanwork()
* This avoids the cgminer master work loop spinning doing nothing
*/
#define MINION_SCAN_mS 88
#define ALLOC_WITEMS 4096
typedef struct witem {
struct work *work;
uint32_t task_id;
struct timeval sent;
int nonces;
bool urgent;
bool stale; // if stale, don't decrement count_up when discarded
} WITEM;
#define ALLOC_TITEMS 256
typedef struct titem {
uint8_t chip;
bool write;
uint8_t address;
uint32_t task_id;
uint32_t wsiz;
uint32_t osiz;
uint32_t rsiz;
uint8_t wbuf[MINION_BUFSIZ];
uint8_t obuf[MINION_BUFSIZ];
uint8_t rbuf[MINION_BUFSIZ];
int reply;
bool urgent;
uint8_t work_state;
struct work *work;
} TITEM;
#define ALLOC_RITEMS 256
typedef struct ritem {
int chip;
int core;
uint32_t task_id;
uint32_t nonce;
/*
* Only once per task_id if no nonces were found
* Sent with core = 0
* However, currently it always sends it at the end of every task
* TODO: code assumes it doesn't - change later when we
* see what the final hardware does (minor code performance gain)
*/
bool no_nonce;
} RITEM;
typedef struct k_item {
const char *name;
struct k_item *prev;
struct k_item *next;
void *data;
} K_ITEM;
#define DATAW(_item) ((WITEM *)(_item->data))
#define DATAT(_item) ((TITEM *)(_item->data))
#define DATAR(_item) ((RITEM *)(_item->data))
typedef struct k_list {
const char *name;
bool is_store;
cglock_t *lock;
struct k_item *head;
struct k_item *tail;
size_t siz; // item data size
int total; // total allocated
int count; // in this list
int count_up; // incremented every time one is added
int allocate; // number to intially allocate and each time we run out
bool do_tail; // store tail
} K_LIST;
/*
* K_STORE is for a list of items taken from a K_LIST
* The restriction is, a K_STORE must not allocate new items,
* only the K_LIST should do that
* i.e. all K_STORE items came from a K_LIST
*/
#define K_STORE K_LIST
#define K_WLOCK(_list) cg_wlock(_list->lock)
#define K_WUNLOCK(_list) cg_wunlock(_list->lock)
#define K_RLOCK(_list) cg_rlock(_list->lock)
#define K_RUNLOCK(_list) cg_runlock(_list->lock)
// Set this to 0 to remove iostats processing
#define DO_IO_STATS 1
#if DO_IO_STATS
#define IO_STAT_NOW(_tv) cgtime(_tv)
#define IO_STAT_STORE(_sta, _fin, _lsta, _lfin, _tsd, _buf, _siz, _reply, _ioc) \
do { \
double _diff, _ldiff, _lwdiff, _1time; \
int _off; \
_diff = us_tdiff(_fin, _sta); \
_ldiff = us_tdiff(_lfin, _lsta); \
_lwdiff = us_tdiff(_sta, _lsta); \
_1time = us_tdiff(_tsd, _lfin); \
_off = (int)(_buf[1]) + (_reply >= 0 ? 0 : 0x100); \
minioninfo->summary.count++; \
minioninfo->summary.tsd += _1time; \
minioninfo->iostats[_off].count++; \
minioninfo->iostats[_off].tsd += _1time; \
if (_diff <= 0) { \
minioninfo->summary.zero_delay++; \
minioninfo->iostats[_off].zero_delay++; \
} else { \
minioninfo->summary.total_delay += _diff; \
if (minioninfo->summary.max_delay < _diff) \
minioninfo->summary.max_delay = _diff; \
if (minioninfo->summary.min_delay == 0 || \
minioninfo->summary.min_delay > _diff) \
minioninfo->summary.min_delay = _diff; \
minioninfo->iostats[_off].total_delay += _diff; \
if (minioninfo->iostats[_off].max_delay < _diff) \
minioninfo->iostats[_off].max_delay = _diff; \
if (minioninfo->iostats[_off].min_delay == 0 || \
minioninfo->iostats[_off].min_delay > _diff) \
minioninfo->iostats[_off].min_delay = _diff; \
} \
if (_ldiff <= 0) { \
minioninfo->summary.zero_dlock++; \
minioninfo->iostats[_off].zero_dlock++; \
} else { \
minioninfo->summary.total_dlock += _ldiff; \
if (minioninfo->summary.max_dlock < _ldiff) \
minioninfo->summary.max_dlock = _ldiff; \
if (minioninfo->summary.min_dlock == 0 || \
minioninfo->summary.min_dlock > _ldiff) \
minioninfo->summary.min_dlock = _ldiff; \
minioninfo->iostats[_off].total_dlock += _ldiff; \
if (minioninfo->iostats[_off].max_dlock < _ldiff) \
minioninfo->iostats[_off].max_dlock = _ldiff; \
if (minioninfo->iostats[_off].min_dlock == 0 || \
minioninfo->iostats[_off].min_dlock > _ldiff) \
minioninfo->iostats[_off].min_dlock = _ldiff; \
} \
minioninfo->summary.total_dlwait += _lwdiff; \
minioninfo->iostats[_off].total_dlwait += _lwdiff; \
if (_siz == 0) { \
minioninfo->summary.zero_bytes++; \
minioninfo->iostats[_off].zero_bytes++; \
} else { \
minioninfo->summary.total_bytes += _siz; \
if (minioninfo->summary.max_bytes < _siz) \
minioninfo->summary.max_bytes = _siz; \
if (minioninfo->summary.min_bytes == 0 || \
minioninfo->summary.min_bytes > _siz) \
minioninfo->summary.min_bytes = _siz; \
minioninfo->iostats[_off].total_bytes += _siz; \
if (minioninfo->iostats[_off].max_bytes < _siz) \
minioninfo->iostats[_off].max_bytes = _siz; \
if (minioninfo->iostats[_off].min_bytes == 0 || \
minioninfo->iostats[_off].min_bytes > _siz) \
minioninfo->iostats[_off].min_bytes = _siz; \
} \
} while (0);
typedef struct iostat {
uint64_t count; // total ioctl()
double total_delay; // total elapsed ioctl()
double min_delay;
double max_delay;
uint64_t zero_delay; // how many had <= 0 delay
// Above but including locking
double total_dlock;
double min_dlock;
double max_dlock;
uint64_t zero_dlock;
// Total time waiting to get lock
double total_dlwait;
// these 3 fields are ignored for now since all are '1'
uint64_t total_ioc; // SPI_IOC_MESSAGE(x)
uint64_t min_ioc;
uint64_t max_ioc;
uint64_t total_bytes; // ioctl() bytes
uint64_t min_bytes;
uint64_t max_bytes;
uint64_t zero_bytes; // how many had siz == 0
double tsd; // total doing one extra cgtime() each time
} IOSTAT;
#else
#define IO_STAT_NOW(_tv)
#define IO_STAT_STORE(_sta, _fin, _lsta, _lfin, _tsd, _buf, _siz, _reply, _ioc)
#endif
struct minion_info {
struct thr_info spiw_thr;
struct thr_info spir_thr;
struct thr_info res_thr;
pthread_mutex_t spi_lock;
pthread_mutex_t sta_lock;
cgsem_t task_ready;
cgsem_t nonce_ready;
cgsem_t scan_work;
int spifd;
char gpiointvalue[64];
int gpiointfd;
// TODO: need to track disabled chips - done?
int chips;
bool chip[MINION_CHIPS];
uint32_t next_task_id;
// Stats
uint64_t chip_nonces[MINION_CHIPS];
uint64_t chip_good[MINION_CHIPS];
uint64_t chip_bad[MINION_CHIPS];
uint64_t core_good[MINION_CHIPS][MINION_CORES];
uint64_t core_bad[MINION_CHIPS][MINION_CORES];
struct minion_status chip_status[MINION_CHIPS];
pthread_mutex_t nonce_lock;
uint64_t new_nonces;
uint64_t ok_nonces;
uint64_t untested_nonces;
uint64_t tested_nonces;
// Work items
K_LIST *wfree_list;
K_STORE *wwork_list;
K_STORE *wchip_list[MINION_CHIPS];
// Task list
K_LIST *tfree_list;
K_STORE *task_list;
K_STORE *treply_list;
// Nonce replies
K_LIST *rfree_list;
K_STORE *rnonce_list;
struct timeval last_did;
#if DO_IO_STATS
// Total
IOSTAT summary;
// Two for each command plus wasted extras i.e. direct/fast lookup
// No error uses 0x0 to 0xff, error uses 0x100 to 0x1ff
IOSTAT iostats[0x200];
#endif
bool initialised;
};
static void alloc_items(K_LIST *list, MINION_FFL_ARGS)
{
K_ITEM *item;
int i;
if (list->is_store) {
quithere(1, "List %s store can't %s" MINION_FFL,
list->name, __func__, MINION_FFL_PASS);
}
item = calloc(list->allocate, sizeof(*item));
if (!item) {
quithere(1, "List %s failed to calloc %d new items - total was %d",
list->name, list->allocate, list->total);
}
list->total += list->allocate;
list->count = list->allocate;
list->count_up = list->allocate;
item[0].name = list->name;
item[0].prev = NULL;
item[0].next = &(item[1]);
for (i = 1; i < list->allocate-1; i++) {
item[i].name = list->name;
item[i].prev = &item[i-1];
item[i].next = &item[i+1];
}
item[list->allocate-1].name = list->name;
item[list->allocate-1].prev = &(item[list->allocate-2]);
item[list->allocate-1].next = NULL;
list->head = item;
if (list->do_tail)
list->tail = &(item[list->allocate-1]);
item = list->head;
while (item) {
item->data = calloc(1, list->siz);
if (!(item->data))
quithere(1, "List %s failed to calloc item data", list->name);
item = item->next;
}
}
static K_STORE *new_store(K_LIST *list)
{
K_STORE *store;
store = calloc(1, sizeof(*store));
if (!store)
quithere(1, "Failed to calloc store for %s", list->name);
store->is_store = true;
store->lock = list->lock;
store->name = list->name;
store->do_tail = list->do_tail;
return store;
}
static K_LIST *new_list(const char *name, size_t siz, int allocate, bool do_tail, MINION_FFL_ARGS)
{
K_LIST *list;
if (allocate < 1)
quithere(1, "Invalid new list %s with allocate %d must be > 0", name, allocate);
list = calloc(1, sizeof(*list));
if (!list)
quithere(1, "Failed to calloc list %s", name);
list->is_store = false;
list->lock = calloc(1, sizeof(*(list->lock)));
if (!(list->lock))
quithere(1, "Failed to calloc lock for list %s", name);
cglock_init(list->lock);
list->name = name;
list->siz = siz;
list->allocate = allocate;
list->do_tail = do_tail;
alloc_items(list, MINION_FFL_PASS);
return list;
}
static K_ITEM *k_get_head(K_LIST *list, MINION_FFL_ARGS)
{
K_ITEM *item;
if (!(list->head))
alloc_items(list, MINION_FFL_PASS);
item = list->head;
list->head = item->next;
if (list->head)
list->head->prev = NULL;
else {
if (list->do_tail)
list->tail = NULL;
}
item->prev = item->next = NULL;
list->count--;
return item;
}
#define k_free_head k_add_head
static void k_add_head(K_LIST *list, K_ITEM *item, MINION_FFL_ARGS)
{
if (item->name != list->name) {
quithere(1, "List %s can't %s a %s item" MINION_FFL,
list->name, __func__, item->name, MINION_FFL_PASS);
}
item->prev = NULL;
item->next = list->head;
if (list->head)
list->head->prev = item;
list->head = item;
if (list->do_tail) {
if (!(list->tail))
list->tail = item;
}
list->count++;
list->count_up++;
}
/*
// TODO: remove later - it slows it down (of course) - only for debugging
static void k_free_head(K_LIST *list, K_ITEM *item, MINION_FFL_ARGS)
{
memset(item->data, 0xff, list->siz);
k_add_head(list, item, MINION_FFL_PASS);
}
*/
static void k_remove(K_LIST *list, K_ITEM *item)
{
if (item->prev)
item->prev->next = item->next;
if (item->next)
item->next->prev = item->prev;
if (list->head == item)
list->head = item->next;
if (list->do_tail) {
if (list->tail == item)
list->tail = item->prev;
}
item->prev = item->next = NULL;
list->count--;
}
static void ready_work(struct cgpu_info *minioncgpu, struct work *work)
{
struct minion_info *minioninfo = (struct minion_info *)(minioncgpu->device_data);
K_ITEM *item = NULL;
K_WLOCK(minioninfo->wfree_list);
item = k_get_head(minioninfo->wfree_list, MINION_FFL_HERE);
DATAW(item)->work = work;
DATAW(item)->task_id = 0;
memset(&(DATAW(item)->sent), 0, sizeof(DATAW(item)->sent));
DATAW(item)->nonces = 0;
DATAW(item)->urgent = false;
k_add_head(minioninfo->wwork_list, item, MINION_FFL_HERE);
K_WUNLOCK(minioninfo->wfree_list);
}
static bool oldest_nonce(struct cgpu_info *minioncgpu, int *chip, int *core, uint32_t *task_id, uint32_t *nonce, bool *no_nonce)
{
struct minion_info *minioninfo = (struct minion_info *)(minioncgpu->device_data);
K_ITEM *item = NULL;
bool found = false;
K_WLOCK(minioninfo->rnonce_list);
item = minioninfo->rnonce_list->tail;
if (item) {
// unlink from res
k_remove(minioninfo->rnonce_list, item);
found = true;
*chip = DATAR(item)->chip;
*core = DATAR(item)->core;
*task_id = DATAR(item)->task_id;
*nonce = DATAR(item)->nonce;
*no_nonce = DATAR(item)->no_nonce;
k_free_head(minioninfo->rfree_list, item, MINION_FFL_HERE);
}
K_WUNLOCK(minioninfo->rnonce_list);
return found;
}
static const char *addr2txt(uint8_t addr)
{
switch (addr) {
case READ_ADDR(MINION_SYS_CHIP_SIG):
return "RChipSig";
case READ_ADDR(MINION_SYS_CHIP_STA):
return "RChipSta";
case WRITE_ADDR(MINION_SYS_MISC_CTL):
return "WMiscCtrl";
case WRITE_ADDR(MINION_SYS_RSTN_CTL):
return "WResetCtrl";
case READ_ADDR(MINION_SYS_FIFO_STA):
return "RFifoSta";
case READ_ADDR(MINION_CORE_ENA0_31):
return "RCoreEna0-31";
case WRITE_ADDR(MINION_CORE_ENA0_31):
return "WCoreEna0-31";
case READ_ADDR(MINION_CORE_ENA32_63):
return "RCoreEna32-63";
case WRITE_ADDR(MINION_CORE_ENA32_63):
return "WCoreEna32-63";
case READ_ADDR(MINION_CORE_ENA64_95):
return "RCoreEna64-95";
case WRITE_ADDR(MINION_CORE_ENA64_95):
return "WCoreEna64-95";
case READ_ADDR(MINION_CORE_ENA96_98):
return "RCoreEna96-98";
case WRITE_ADDR(MINION_CORE_ENA96_98):
return "WCoreEna96-98";
case READ_ADDR(MINION_RES_DATA):
return "RResData";
case WRITE_ADDR(MINION_QUE_0):
return "WQueWork";
case READ_ADDR(MINION_NONCE_START):
return "RNonceStart";
case WRITE_ADDR(MINION_NONCE_START):
return "WNonceStart";
case READ_ADDR(MINION_NONCE_RANGE):
return "RNonceRange";
case WRITE_ADDR(MINION_NONCE_RANGE):
return "WNonceRange";
case READ_ADDR(MINION_SYS_INT_STA):
return "RIntSta";
case WRITE_ADDR(MINION_SYS_INT_ENA):
return "WIntEna";
case WRITE_ADDR(MINION_SYS_INT_CLR):
return "WIntClear";
case WRITE_ADDR(MINION_SYS_BUF_TRIG):
return "WResTrigger";
case WRITE_ADDR(MINION_SYS_QUE_TRIG):
return "WCmdTrigger";
}
// gcc warning if this is in default:
if (IS_ADDR_READ(addr))
return "RUnhandled";
else
return "WUnhandled";
}
// For display_ioctl()
#define IOCTRL_LOG LOG_DEBUG
// For all other debug so it can easily be switched always on
#define MINION_LOG LOG_DEBUG
/*
static void display_ioctl(int reply, uint32_t osiz, uint8_t *obuf, uint32_t rsiz, uint8_t *rbuf)
{
struct minion_result *res;
const char *name, *dir, *ex;
char buf[1024];
int i, rescount;
name = addr2txt(obuf[1]);
if (IS_ADDR_READ(obuf[1]))
dir = "from";
else
dir = "to";
buf[0] = '\0';
ex = "";
switch (obuf[1]) {
case READ_ADDR(MINION_SYS_CHIP_SIG):
case READ_ADDR(MINION_SYS_CHIP_STA):
break;
case WRITE_ADDR(MINION_SYS_MISC_CTL):
case WRITE_ADDR(MINION_SYS_RSTN_CTL):
if (osiz > HSIZE()) {
ex = " wrote ";
__bin2hex(buf, obuf + HSIZE(), osiz - HSIZE());
} else
ex = " wrote nothing";
break;
default:
if (IS_ADDR_WRITE(obuf[1])) {
if (osiz > HSIZE()) {
ex = " wrote ";
__bin2hex(buf, obuf + HSIZE(), osiz - HSIZE());
} else
ex = " wrote nothing";
}
break;
}
if (reply < 0) {
applog(IOCTRL_LOG, "%s %s chip %d osiz %d%s%s",
name, dir, (int)obuf[0], (int)osiz, ex, buf);
applog(IOCTRL_LOG, " reply was error %d", reply);
} else {
if (IS_ADDR_WRITE(obuf[1])) {
applog(IOCTRL_LOG, "%s %s chip %d osiz %d%s%s",
name, dir, (int)obuf[0], (int)osiz, ex, buf);
applog(IOCTRL_LOG, " write ret was %d", reply);
} else {
switch (obuf[1]) {
case READ_ADDR(MINION_RES_DATA):
rescount = (int)((float)rsiz / (float)MINION_RES_DATA_SIZ);
applog(IOCTRL_LOG, "%s %s chip %d osiz %d%s%s",
name, dir, (int)obuf[0], (int)osiz, ex, buf);
for (i = 0; i < rescount; i++) {
res = (struct minion_result *)(rbuf + osiz - rsiz + (i * MINION_RES_DATA_SIZ));
if (!IS_RESULT(res)) {
applog(IOCTRL_LOG, " %s reply %d of %d - none", name, i+1, rescount);
} else {
__bin2hex(buf, res->nonce, DATA_SIZ);
applog(IOCTRL_LOG, " %s reply %d of %d %d(%d) was task 0x%04x"
" chip %d core %d gold %s nonce 0x%s",
name, i+1, rescount, reply, rsiz,
RES_TASK(res),
(int)RES_CHIP(res),
(int)RES_CORE(res),
(int)RES_GOLD(res) ? "Y" : "N",
buf);
}
}
break;
case READ_ADDR(MINION_SYS_CHIP_SIG):
case READ_ADDR(MINION_SYS_CHIP_STA):
default:
applog(IOCTRL_LOG, "%s %s chip %d osiz %d%s%s",
name, dir, (int)obuf[0], (int)osiz, ex, buf);
__bin2hex(buf, rbuf + osiz - rsiz, rsiz);
applog(IOCTRL_LOG, " %s reply %d(%d) was %s", name, reply, rsiz, buf);
break;
}
}
}
}
*/
#define MINION_UNEXPECTED_TASK -999
#define MINION_OVERSIZE_TASK -998
// Set to 1 for debug
#define MINION_SHOW_IO 0
static int _do_ioctl(struct minion_info *minioninfo, uint8_t *obuf, uint32_t osiz, uint8_t *rbuf, uint32_t rsiz, MINION_FFL_ARGS)
{
/*
// TODO: remove these 2 later and rename the z[or]buf back to [or]buf
// this simply ensures the IO buffers displayed are not affected by a bug elsewhere - during dev/testing
uint8_t obuf[MINION_BUFSIZ], rbuf[MINION_BUFSIZ];
*/
struct spi_ioc_transfer tran;
int ret;
#if DO_IO_STATS
struct timeval sta, fin, lsta, lfin, tsd;
#endif
if ((int)osiz > MINION_BUFSIZ)
quitfrom(1, file, func, line, "%s() invalid osiz %u > %d", __func__, osiz, MINION_BUFSIZ);
if (rsiz >= osiz)
quitfrom(1, file, func, line, "%s() invalid rsiz %u >= osiz %u", __func__, rsiz, osiz);
// memcpy(obuf, zobuf, osiz);
memset(&obuf[0] + osiz - rsiz, 0xff, rsiz);
#if MINION_SHOW_IO
char *buf = bin2hex((char *)obuf, osiz);
applog(LOG_WARNING, "*** %s() sending %s", __func__, buf);
free(buf);
#endif
memset((char *)rbuf, 0x00, osiz);
// cgsleep_ms(5); // TODO: a delay ... based on the last command? But subtract elapsed
// i.e. do any commands need a delay after the I/O has completed before the next I/O?
memset(&tran, 0, sizeof(tran));
if (osiz < MINION_SPI_BUFSIZ)
tran.len = osiz;
else
return MINION_OVERSIZE_TASK;
tran.delay_usecs = 0;
tran.speed_hz = MINION_SPI_SPEED;
tran.tx_buf = (uintptr_t)obuf;
tran.rx_buf = (uintptr_t)rbuf;
IO_STAT_NOW(&lsta);
mutex_lock(&(minioninfo->spi_lock));
IO_STAT_NOW(&sta);
ret = ioctl(minioninfo->spifd, SPI_IOC_MESSAGE(1), (void *)&tran);
IO_STAT_NOW(&fin);
mutex_unlock(&(minioninfo->spi_lock));
IO_STAT_NOW(&lfin);
IO_STAT_NOW(&tsd);
IO_STAT_STORE(&sta, &fin, &lsta, &lfin, &tsd, obuf, osiz, ret, 1);
#if MINION_SHOW_IO
if (ret > 0) {
buf = bin2hex((char *)rbuf, ret);
applog(LOG_WARNING, "*** %s() reply %d = %s", __func__, ret, buf);
free(buf);
} else
applog(LOG_WARNING, "*** %s() reply = %d", __func__, ret);
#endif
// display_ioctl(ret, osiz, obuf, rsiz, rbuf);
// memcpy(zrbuf, &rbuf[0], osiz);