From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mga09.intel.com ([134.134.136.24]:24855 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753276AbcAWVvf (ORCPT ); Sat, 23 Jan 2016 16:51:35 -0500 From: Sakari Ailus To: linux-media@vger.kernel.org Cc: laurent.pinchart@ideasonboard.com, Samu Onkalo Subject: [yavta PATCH 1/1] cache maintenance skip feature Date: Sat, 23 Jan 2016 23:49:54 +0200 Message-Id: <1453585794-18833-1-git-send-email-sakari.ailus@linux.intel.com> Sender: linux-media-owner@vger.kernel.org List-ID: From: Samu Onkalo Add options to skip cache maintenance. --dqbuf-skip-cache --qbuf-skip-cache Signed-off-by: Samu Onkalo Signed-off-by: Sakari Ailus --- This patch depends on my earlier patch "Fix --data-prefix option documentation". yavta.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/yavta.c b/yavta.c index b21c3b3..ec4acd6 100644 --- a/yavta.c +++ b/yavta.c @@ -73,6 +73,8 @@ struct device unsigned int width; unsigned int height; uint32_t buffer_output_flags; + uint32_t buffer_qbuf_flags; + uint32_t buffer_dqbuf_flags; uint32_t timestamp_type; unsigned char num_planes; @@ -1010,6 +1012,8 @@ static int video_queue_buffer(struct device *dev, int index, enum buffer_fill_mo } } + buf.flags |= dev->buffer_qbuf_flags; + if (video_is_mplane(dev)) { buf.m.planes = planes; buf.length = dev->num_planes; @@ -1662,6 +1666,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes, buf.memory = dev->memtype; buf.length = VIDEO_MAX_PLANES; buf.m.planes = planes; + buf.flags = dev->buffer_dqbuf_flags; ret = ioctl(dev->fd, VIDIOC_DQBUF, &buf); if (ret < 0) { @@ -1781,6 +1786,7 @@ static void usage(const char *argv0) printf("-u, --userptr Use the user pointers streaming method\n"); printf("-w, --set-control 'ctrl value' Set control 'ctrl' to 'value'\n"); printf(" --data-prefix Write portions of buffer data before data_offset\n"); + printf(" --[d]qbuf-skip-cache Skip cache maintenance\n"); printf(" --buffer-size Buffer size in bytes\n"); printf(" --enum-formats Enumerate formats\n"); printf(" --enum-inputs Enumerate inputs\n"); @@ -1814,6 +1820,8 @@ static void usage(const char *argv0) #define OPT_PREMULTIPLIED 269 #define OPT_QUEUE_LATE 270 #define OPT_DATA_PREFIX 271 +#define OPT_DQBUF_NO_CACHE 272 +#define OPT_QBUF_NO_CACHE 273 static struct option opts[] = { {"buffer-size", 1, 0, OPT_BUFFER_SIZE}, @@ -1822,6 +1830,7 @@ static struct option opts[] = { {"check-overrun", 0, 0, 'C'}, {"data-prefix", 0, 0, OPT_DATA_PREFIX}, {"delay", 1, 0, 'd'}, + {"dqbuf-skip-cache", 0, 0, OPT_DQBUF_NO_CACHE}, {"enum-formats", 0, 0, OPT_ENUM_FORMATS}, {"enum-inputs", 0, 0, OPT_ENUM_INPUTS}, {"fd", 1, 0, OPT_FD}, @@ -1838,6 +1847,7 @@ static struct option opts[] = { {"offset", 1, 0, OPT_USERPTR_OFFSET}, {"pause", 0, 0, 'p'}, {"premultiplied", 0, 0, OPT_PREMULTIPLIED}, + {"qbuf-skip-cache", 0, 0, OPT_QBUF_NO_CACHE}, {"quality", 1, 0, 'q'}, {"queue-late", 0, 0, OPT_QUEUE_LATE}, {"get-control", 1, 0, 'r'}, @@ -2089,6 +2099,12 @@ int main(int argc, char *argv[]) case OPT_DATA_PREFIX: dev.write_data_prefix = true; break; + case OPT_DQBUF_NO_CACHE: + dev.buffer_dqbuf_flags |= V4L2_BUF_FLAG_NO_CACHE_INVALIDATE; + break; + case OPT_QBUF_NO_CACHE: + dev.buffer_qbuf_flags |= V4L2_BUF_FLAG_NO_CACHE_INVALIDATE; + break; default: printf("Invalid option -%c\n", c); printf("Run %s -h for help.\n", argv[0]); -- 1.7.9.5