diff options
Diffstat (limited to 'drivers/dma/dmatest.c')
| -rw-r--r-- | drivers/dma/dmatest.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 1245db5438e1..cf76fc6149e5 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -56,10 +56,10 @@ module_param(sg_buffers, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(sg_buffers, "Number of scatter gather buffers (default: 1)"); -static unsigned int dmatest = 1; +static unsigned int dmatest; module_param(dmatest, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(dmatest, - "dmatest 0-memcpy 1-slave_sg (default: 1)"); + "dmatest 0-memcpy 1-slave_sg (default: 0)"); static unsigned int xor_sources = 3; module_param(xor_sources, uint, S_IRUGO | S_IWUSR); @@ -426,7 +426,9 @@ static int dmatest_func(void *data) int src_cnt; int dst_cnt; int i; - ktime_t ktime; + ktime_t ktime, start, diff; + ktime_t filltime = ktime_set(0, 0); + ktime_t comparetime = ktime_set(0, 0); s64 runtime = 0; unsigned long long total_len = 0; @@ -503,7 +505,7 @@ static int dmatest_func(void *data) total_tests++; /* honor alignment restrictions */ - if (thread->type == DMA_MEMCPY) + if (thread->type == DMA_MEMCPY || thread->type == DMA_SG) align = dev->copy_align; else if (thread->type == DMA_XOR) align = dev->xor_align; @@ -531,6 +533,7 @@ static int dmatest_func(void *data) 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); @@ -541,6 +544,9 @@ static int dmatest_func(void *data) params->buf_size); dmatest_init_dsts(thread->dsts, dst_off, len, params->buf_size); + + diff = ktime_sub(ktime_get(), start); + filltime = ktime_add(filltime, diff); } um = dmaengine_get_unmap_data(dev->dev, src_cnt+dst_cnt, @@ -683,6 +689,7 @@ static int dmatest_func(void *data) continue; } + start = ktime_get(); pr_debug("%s: verifying source buffer...\n", current->comm); error_count = dmatest_verify(thread->srcs, 0, src_off, 0, PATTERN_SRC, true); @@ -703,6 +710,9 @@ static int dmatest_func(void *data) params->buf_size, dst_off + len, PATTERN_DST, false); + diff = ktime_sub(ktime_get(), start); + comparetime = ktime_add(comparetime, diff); + if (error_count) { result("data error", total_tests, src_off, dst_off, len, error_count); @@ -712,7 +722,10 @@ static int dmatest_func(void *data) dst_off, len, 0); } } - runtime = ktime_us_delta(ktime_get(), ktime); + ktime = ktime_sub(ktime_get(), ktime); + ktime = ktime_sub(ktime, comparetime); + ktime = ktime_sub(ktime, filltime); + runtime = ktime_to_us(ktime); ret = 0; err_dstbuf: |