From: Aurabindo Pillai <mail@aurabindo.in> To: Jani Nikula <jani.nikula@linux.intel.com> Cc: maarten.lankhorst@linux.intel.com, mripard@kernel.org, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH] drm: dpcd: Print more useful information during error Date: Wed, 15 Apr 2020 21:44:58 -0400 [thread overview] Message-ID: <CAMu4TMtb9f_zusEkUkDWzJMJ-uu8yciUUWxGybv2f4a+ER7B+Q@mail.gmail.com> (raw) In-Reply-To: <87o8rumiqu.fsf@intel.com> When DPCD access errors occur, knowing the register and request associated with the error helps debugging, so print the details in the debug message. Signed-off-by: Aurabindo Pillai <mail@aurabindo.in> --- drivers/gpu/drm/drm_dp_helper.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index c6fbe6e6b..8aafc01f5 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -257,7 +257,9 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request, err = ret; } - DRM_DEBUG_KMS("Too many retries, giving up. First error: %d\n", err); + DRM_DEBUG_KMS("dpcd: Too many retries, giving up. First error: %d," + " address: 0x%x, request: 0x%x, size:%zu\n", + err, msg.address, msg.request, msg.size); ret = err; unlock: -- 2.26.0 On Tue, Apr 14, 2020 at 7:04 AM Jani Nikula <jani.nikula@linux.intel.com> wrote: > > On Thu, 09 Apr 2020, Aurabindo Pillai <mail@aurabindo.in> wrote: > > When DPCD access errors occur, knowing the register and request > > associated with the error helps debugging, so print the > > details in the debug message. > > > > Signed-off-by: Aurabindo Pillai <mail@aurabindo.in> > > --- > > drivers/gpu/drm/drm_dp_helper.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c > > index a5364b519..545606aac 100644 > > --- a/drivers/gpu/drm/drm_dp_helper.c > > +++ b/drivers/gpu/drm/drm_dp_helper.c > > @@ -257,7 +257,9 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request, > > err = ret; > > } > > > > - DRM_DEBUG_KMS("Too many retries, giving up. First error: %d\n", err); > > + DRM_DEBUG_KMS("dpcd: Too many retries, giving up. First error: %d\t" > > + "address: %x\trequest: %x\t size:%zu\n", > > + err, msg.address, msg.request, msg.size); > > Nitpicks, please don't add tabs, maybe use commas instead, and please > add 0x in front of hex. > > BR, > Jani. > > > > ret = err; > > > > unlock: > > -- > Jani Nikula, Intel Open Source Graphics Center -- Thanks and Regards, Aurabindo J Pillai https://aurabindo.in
WARNING: multiple messages have this Message-ID (diff)
From: Aurabindo Pillai <mail@aurabindo.in> To: Jani Nikula <jani.nikula@linux.intel.com> Cc: David Airlie <airlied@linux.ie>, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH] drm: dpcd: Print more useful information during error Date: Wed, 15 Apr 2020 21:44:58 -0400 [thread overview] Message-ID: <CAMu4TMtb9f_zusEkUkDWzJMJ-uu8yciUUWxGybv2f4a+ER7B+Q@mail.gmail.com> (raw) In-Reply-To: <87o8rumiqu.fsf@intel.com> When DPCD access errors occur, knowing the register and request associated with the error helps debugging, so print the details in the debug message. Signed-off-by: Aurabindo Pillai <mail@aurabindo.in> --- drivers/gpu/drm/drm_dp_helper.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index c6fbe6e6b..8aafc01f5 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -257,7 +257,9 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request, err = ret; } - DRM_DEBUG_KMS("Too many retries, giving up. First error: %d\n", err); + DRM_DEBUG_KMS("dpcd: Too many retries, giving up. First error: %d," + " address: 0x%x, request: 0x%x, size:%zu\n", + err, msg.address, msg.request, msg.size); ret = err; unlock: -- 2.26.0 On Tue, Apr 14, 2020 at 7:04 AM Jani Nikula <jani.nikula@linux.intel.com> wrote: > > On Thu, 09 Apr 2020, Aurabindo Pillai <mail@aurabindo.in> wrote: > > When DPCD access errors occur, knowing the register and request > > associated with the error helps debugging, so print the > > details in the debug message. > > > > Signed-off-by: Aurabindo Pillai <mail@aurabindo.in> > > --- > > drivers/gpu/drm/drm_dp_helper.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c > > index a5364b519..545606aac 100644 > > --- a/drivers/gpu/drm/drm_dp_helper.c > > +++ b/drivers/gpu/drm/drm_dp_helper.c > > @@ -257,7 +257,9 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request, > > err = ret; > > } > > > > - DRM_DEBUG_KMS("Too many retries, giving up. First error: %d\n", err); > > + DRM_DEBUG_KMS("dpcd: Too many retries, giving up. First error: %d\t" > > + "address: %x\trequest: %x\t size:%zu\n", > > + err, msg.address, msg.request, msg.size); > > Nitpicks, please don't add tabs, maybe use commas instead, and please > add 0x in front of hex. > > BR, > Jani. > > > > ret = err; > > > > unlock: > > -- > Jani Nikula, Intel Open Source Graphics Center -- Thanks and Regards, Aurabindo J Pillai https://aurabindo.in _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2020-04-16 1:45 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-04-09 19:52 [PATCH] drm: dpcd: Print more useful information during error Aurabindo Pillai 2020-04-09 19:52 ` Aurabindo Pillai 2020-04-14 11:03 ` Jani Nikula 2020-04-14 11:03 ` Jani Nikula 2020-04-16 1:44 ` Aurabindo Pillai [this message] 2020-04-16 1:44 ` Aurabindo Pillai
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=CAMu4TMtb9f_zusEkUkDWzJMJ-uu8yciUUWxGybv2f4a+ER7B+Q@mail.gmail.com \ --to=mail@aurabindo.in \ --cc=airlied@linux.ie \ --cc=daniel@ffwll.ch \ --cc=dri-devel@lists.freedesktop.org \ --cc=jani.nikula@linux.intel.com \ --cc=linux-kernel@vger.kernel.org \ --cc=maarten.lankhorst@linux.intel.com \ --cc=mripard@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.