mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-01 14:44:12 +00:00
Code Issues Releases Wiki Activity

Merge branch 'topic/dmatest' into for-linus

Browse source
This commit is contained in:
Vinod Koul 2018-04-10 08:54:59 +05:30
commit 36ebe2b98e
1 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/dma/dmatest.c
View file

@ -74,7 +74,11 @@ MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
static bool noverify;
module_param(noverify, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(noverify, "Disable random data setup and verification");
MODULE_PARM_DESC(noverify, "Disable data verification (default: verify)");
static bool norandom;
module_param(norandom, bool, 0644);
MODULE_PARM_DESC(norandom, "Disable random offset setup (default: random)");
static bool verbose;
module_param(verbose, bool, S_IRUGO | S_IWUSR);
@ -103,6 +107,7 @@ struct dmatest_params {
unsigned int pq_sources;
int timeout;
bool noverify;
bool norandom;
};
/**
@ -575,7 +580,7 @@ static int dmatest_func(void *data)
break;
}
if (params->noverify)
if (params->norandom)
len = params->buf_size;
else
len = dmatest_random() % params->buf_size + 1;
@ -586,17 +591,19 @@ static int dmatest_func(void *data)
total_len += len;
if (params->noverify) {
if (params->norandom) {
src_off = 0;
dst_off = 0;
} else {
start = ktime_get();
src_off = dmatest_random() % (params->buf_size - len + 1);
dst_off = dmatest_random() % (params->buf_size - len + 1);
src_off = (src_off >> align) << align;
dst_off = (dst_off >> align) << align;
}
if (!params->noverify) {
start = ktime_get();
dmatest_init_srcs(thread->srcs, src_off, len,
params->buf_size, is_memset);
dmatest_init_dsts(thread->dsts, dst_off, len,
@ -975,6 +982,7 @@ static void run_threaded_test(struct dmatest_info *info)
params->pq_sources = pq_sources;
params->timeout = timeout;
params->noverify = noverify;
params->norandom = norandom;
request_channels(info, DMA_MEMCPY);
request_channels(info, DMA_MEMSET);