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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-08-05 22:10:52 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-08-05 22:10:52 +0100 |
| commit | 13efdbecc65ef6ec4028551fb223dea5c5e3143c (patch) | |
| tree | 634a2ce082abe3eb2a5defe0f1ddc2f3eb10f085 /drivers/dma/dmatest.c | |
| parent | 61f4a10cb4e9447a85245c63b3e7f46e09299fed (diff) | |
| parent | 6fd210a9cc398ecbff7bcdbe220651b73b654f56 (diff) | |
Merge branch 'pm-upstream/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into devel-stable
Diffstat (limited to 'drivers/dma/dmatest.c')
| -rw-r--r-- | drivers/dma/dmatest.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index fb7da5141e96..d93017fc7872 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -38,6 +38,11 @@ module_param(max_channels, uint, S_IRUGO); MODULE_PARM_DESC(max_channels, "Maximum number of channels to use (default: all)"); +static unsigned int iterations; +module_param(iterations, uint, S_IRUGO); +MODULE_PARM_DESC(iterations, + "Iterations before stopping test (default: infinite)"); + static unsigned int xor_sources = 3; module_param(xor_sources, uint, S_IRUGO); MODULE_PARM_DESC(xor_sources, @@ -114,7 +119,7 @@ static void dmatest_init_srcs(u8 **bufs, unsigned int start, unsigned int len) buf[i] = PATTERN_SRC | (~i & PATTERN_COUNT_MASK); for ( ; i < start + len; i++) buf[i] = PATTERN_SRC | PATTERN_COPY - | (~i & PATTERN_COUNT_MASK);; + | (~i & PATTERN_COUNT_MASK); for ( ; i < test_buf_size; i++) buf[i] = PATTERN_SRC | (~i & PATTERN_COUNT_MASK); buf++; @@ -270,7 +275,8 @@ static int dmatest_func(void *data) flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_DEST_UNMAP | DMA_PREP_INTERRUPT; - while (!kthread_should_stop()) { + while (!kthread_should_stop() + && !(iterations && total_tests >= iterations)) { struct dma_device *dev = chan->device; struct dma_async_tx_descriptor *tx = NULL; dma_addr_t dma_srcs[src_cnt]; @@ -416,6 +422,13 @@ err_srcbuf: err_srcs: pr_notice("%s: terminating after %u tests, %u failures (status %d)\n", thread_name, total_tests, failed_tests, ret); + + if (iterations > 0) + while (!kthread_should_stop()) { + DECLARE_WAIT_QUEUE_HEAD(wait_dmatest_exit); + interruptible_sleep_on(&wait_dmatest_exit); + } + return ret; } @@ -495,11 +508,11 @@ static int dmatest_add_channel(struct dma_chan *chan) if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) { cnt = dmatest_add_threads(dtc, DMA_MEMCPY); - thread_count += cnt > 0 ?: 0; + thread_count += cnt > 0 ? cnt : 0; } if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) { cnt = dmatest_add_threads(dtc, DMA_XOR); - thread_count += cnt > 0 ?: 0; + thread_count += cnt > 0 ? cnt : 0; } pr_info("dmatest: Started %u threads using %s\n", |