Re: [Intel-gfx] [PATCH i-g-t] tests/kms: increase max threshold time for edid read
Quoting Daniel Vetter (2017-08-07 17:20:27) > On Fri, Aug 04, 2017 at 11:23:18AM -0700, clinton.a.tay...@intel.com wrote: > > From: Clint Taylor> > > > Current 50ms max threshold timing for an EDID read is very close to the > > actual time for a 2 block HDMI EDID read of 48ms. Any delay like a clock > > stretch by the EDID eeprom will cause this test to fail. A 4 block HDMI > > EDID read takes approximately 88ms under nominal conditions, making the max > > threshold 95ms will allow this test to pass regardless of monitor attached. > > > > Signed-off-by: Clint Taylor > > Per internal mail, this needs to be runtime adjusted to fit the EDID we're > reading. Maybe 30ms per edid block. Those are scary numbers. So please also a kms_flip flip-vs-edid with timestamp check. Given the number of random probes we do, we must make sure that we can do those in parallel to driving the display fluidly. Similarly, some crc testing against edid reading would be in order to make sure that there are no display glitches during the transfer. -Chris ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [PATCH i-g-t] tests/kms: increase max threshold time for edid read
On 08/08/2017 12:51 AM, Lofstedt, Marta wrote: Thanks Clinton! If you add: Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100047 You have my Rb. /Marta Thanks Marta, However I'm going to extend the functionality to read the EDID block size like Daniel suggested. During testing today of the new edid size read SKL passed and IVB failed. This may be a result of an actual HDMI port vs LSPCON. More testing is required before I have a actual working test. -Clint -Original Message- From: Intel-gfx [mailto:intel-gfx-boun...@lists.freedesktop.org] On Behalf Of clinton.a.tay...@intel.com Sent: Friday, August 4, 2017 9:23 PM To: intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH i-g-t] tests/kms: increase max threshold time for edid read From: Clint TaylorCurrent 50ms max threshold timing for an EDID read is very close to the actual time for a 2 block HDMI EDID read of 48ms. Any delay like a clock stretch by the EDID eeprom will cause this test to fail. A 4 block HDMI EDID read takes approximately 88ms under nominal conditions, making the max threshold 95ms will allow this test to pass regardless of monitor attached. Signed-off-by: Clint Taylor --- tests/kms_sysfs_edid_timing.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tests/kms_sysfs_edid_timing.c b/tests/kms_sysfs_edid_timing.c index 1201388..b45e080 100644 --- a/tests/kms_sysfs_edid_timing.c +++ b/tests/kms_sysfs_edid_timing.c @@ -27,14 +27,14 @@ #include #define THRESHOLD_PER_CONNECTOR 10 -#define THRESHOLD_TOTAL50 +#define THRESHOLD_TOTAL95 #define CHECK_TIMES 15 IGT_TEST_DESCRIPTION("This check the time we take to read the content of all " "the possible connectors. Without the edid - ENXIO patch " "(http://permalink.gmane.org/gmane.comp.video.dri.devel/62083)," -"we sometimes take a *really* long time. " -"So let's just check for some reasonable timing here"); +"we sometimes take a *really* long time. So let's just " +"check an approximate HDMI 4 block edid read timing here"); igt_simple_main -- 1.9.1 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [PATCH i-g-t] tests/kms: increase max threshold time for edid read
Thanks Clinton! If you add: Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100047 You have my Rb. /Marta > -Original Message- > From: Intel-gfx [mailto:intel-gfx-boun...@lists.freedesktop.org] On Behalf > Of clinton.a.tay...@intel.com > Sent: Friday, August 4, 2017 9:23 PM > To: intel-gfx@lists.freedesktop.org > Subject: [Intel-gfx] [PATCH i-g-t] tests/kms: increase max threshold time for > edid read > > From: Clint Taylor> > Current 50ms max threshold timing for an EDID read is very close to the > actual time for a 2 block HDMI EDID read of 48ms. Any delay like a clock > stretch by the EDID eeprom will cause this test to fail. A 4 block HDMI EDID > read takes approximately 88ms under nominal conditions, making the max > threshold 95ms will allow this test to pass regardless of monitor attached. > > Signed-off-by: Clint Taylor > --- > tests/kms_sysfs_edid_timing.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/tests/kms_sysfs_edid_timing.c b/tests/kms_sysfs_edid_timing.c > index 1201388..b45e080 100644 > --- a/tests/kms_sysfs_edid_timing.c > +++ b/tests/kms_sysfs_edid_timing.c > @@ -27,14 +27,14 @@ > #include > > #define THRESHOLD_PER_CONNECTOR 10 > -#define THRESHOLD_TOTAL 50 > +#define THRESHOLD_TOTAL 95 > #define CHECK_TIMES 15 > > IGT_TEST_DESCRIPTION("This check the time we take to read the content of > all " >"the possible connectors. Without the edid - > ENXIO patch " > > "(http://permalink.gmane.org/gmane.comp.video.dri.devel/62083), " > - "we sometimes take a *really* long time. " > - "So let's just check for some reasonable > timing here"); > + "we sometimes take a *really* long time. So > let's just " > + "check an approximate HDMI 4 block edid > read timing here"); > > > igt_simple_main > -- > 1.9.1 > > ___ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [PATCH i-g-t] tests/kms: increase max threshold time for edid read
On Fri, Aug 04, 2017 at 11:23:18AM -0700, clinton.a.tay...@intel.com wrote: > From: Clint Taylor> > Current 50ms max threshold timing for an EDID read is very close to the > actual time for a 2 block HDMI EDID read of 48ms. Any delay like a clock > stretch by the EDID eeprom will cause this test to fail. A 4 block HDMI > EDID read takes approximately 88ms under nominal conditions, making the max > threshold 95ms will allow this test to pass regardless of monitor attached. > > Signed-off-by: Clint Taylor Per internal mail, this needs to be runtime adjusted to fit the EDID we're reading. Maybe 30ms per edid block. Thanks, Daniel > --- > tests/kms_sysfs_edid_timing.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/tests/kms_sysfs_edid_timing.c b/tests/kms_sysfs_edid_timing.c > index 1201388..b45e080 100644 > --- a/tests/kms_sysfs_edid_timing.c > +++ b/tests/kms_sysfs_edid_timing.c > @@ -27,14 +27,14 @@ > #include > > #define THRESHOLD_PER_CONNECTOR 10 > -#define THRESHOLD_TOTAL 50 > +#define THRESHOLD_TOTAL 95 > #define CHECK_TIMES 15 > > IGT_TEST_DESCRIPTION("This check the time we take to read the content of all > " >"the possible connectors. Without the edid -ENXIO patch " > > "(http://permalink.gmane.org/gmane.comp.video.dri.devel/62083), " > - "we sometimes take a *really* long time. " > - "So let's just check for some reasonable timing here"); > + "we sometimes take a *really* long time. So let's just " > + "check an approximate HDMI 4 block edid read timing here"); > > > igt_simple_main > -- > 1.9.1 > > ___ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx