GOSTSec/sgminer
1
0
Fork 0
mirror of https://github.com/GOSTSec/sgminer synced 2025-01-22 12:34:27 +00:00
Code Issues Releases Wiki Activity

The write thread in avalon is only ever actually woken up by timeout so remove the write semaphore and use a simple sleep poll.

Browse Source
This commit is contained in:
Con Kolivas 2013-08-13 17:24:01 +10:00
parent b2a3941ef1
commit dd9233f78b
2 changed files with 4 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
driver-avalon.c
View File

@ -702,11 +702,9 @@ static bool avalon_detect_one(libusb_device *dev, struct usb_find_devices *found
if (!add_cgpu(avalon))
goto unshin;
cgsem_init(&info->write_sem);
ret = avalon_reset(avalon, true);
if (ret && !configured)
goto unshinsem;
goto unshin;
update_usb_stats(avalon);
@ -730,10 +728,6 @@ static bool avalon_detect_one(libusb_device *dev, struct usb_find_devices *found
return true;
unshinsem:
cgsem_destroy(&info->write_sem);
unshin:
usb_uninit(avalon);
@ -976,7 +970,7 @@ static void *avalon_send_tasks(void *userdata)
bool idled = false;
while (avalon_buffer_full(avalon))
cgsem_wait(&info->write_sem);
nmsleep(40);
if (opt_avalon_auto && info->auto_queued >= AVALON_AUTO_CYCLE) {
mutex_lock(&info->lock);
@ -1014,7 +1008,7 @@ static void *avalon_send_tasks(void *userdata)
break;
else {
while (avalon_buffer_full(avalon))
cgsem_wait(&info->write_sem);
nmsleep(40);
}
}
@ -1100,8 +1094,6 @@ static void do_avalon_close(struct thr_info *thr)
avalon_running_reset(avalon, info);
info->no_matching_work = 0;
cgsem_destroy(&info->write_sem);
}
static inline void record_temp_fan(struct avalon_info *info, struct avalon_result *ar, float *temp_avg)
@ -1284,7 +1276,6 @@ static int64_t avalon_scanhash(struct thr_info *thr)
struct timeval now, then, tdiff;
int64_t hash_count, us_timeout;
struct timespec abstime;
int ret;
/* Half nonce range */
us_timeout = 0x80000000ll / info->asic_count / info->frequency;
@ -1298,14 +1289,9 @@ static int64_t avalon_scanhash(struct thr_info *thr)
/* Wait until avalon_send_tasks signals us that it has completed
* sending its work or a full nonce range timeout has occurred */
mutex_lock(&info->qlock);
ret = pthread_cond_timedwait(&info->qcond, &info->qlock, &abstime);
pthread_cond_timedwait(&info->qcond, &info->qlock, &abstime);
mutex_unlock(&info->qlock);
/* If we timed out, avalon_send_tasks may be stuck waiting on the
* write_sem, so force it to check for avalon_buffer_full itself. */
if (ret)
cgsem_post(&info->write_sem);
mutex_lock(&info->lock);
hash_count = 0xffffffffull * (uint64_t)info->nonces;
avalon->results += info->nonces + info->idle;

1
driver-avalon.h
View File

@ -132,7 +132,6 @@ struct avalon_info {
pthread_mutex_t lock;
pthread_mutex_t qlock;
pthread_cond_t qcond;
cgsem_t write_sem;
int nonces;
int auto_queued;