From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 14/18] drm/i915: Read out HDMI infoframes
Date: Mon, 24 Sep 2018 19:52:55 +0300 [thread overview]
Message-ID: <20180924165255.GT5565@intel.com> (raw)
In-Reply-To: <20180924160809.GA11082@phenom.ffwll.local>
On Mon, Sep 24, 2018 at 06:08:09PM +0200, Daniel Vetter wrote:
> On Thu, Sep 20, 2018 at 09:51:41PM +0300, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > Add code to read the infoframes from the video DIP and unpack them into
> > the crtc state.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > ---
> > drivers/gpu/drm/i915/intel_ddi.c | 17 ++++
> > drivers/gpu/drm/i915/intel_drv.h | 10 ++
> > drivers/gpu/drm/i915/intel_hdmi.c | 203 ++++++++++++++++++++++++++++++++++++++
> > 3 files changed, 230 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> > index 5f3bd536d261..a56289f78326 100644
> > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > @@ -3459,6 +3459,23 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
> > bxt_ddi_phy_get_lane_lat_optim_mask(encoder);
> >
> > intel_ddi_compute_min_voltage_level(dev_priv, pipe_config);
> > +
> > + intel_hdmi_read_gcp_infoframe(encoder, pipe_config);
> > +
> > + if (!intel_read_infoframe(encoder, pipe_config,
> > + HDMI_INFOFRAME_TYPE_AVI,
> > + &pipe_config->infoframes.avi))
> > + DRM_ERROR("failed to read AVI infoframe\n");
> > +
> > + if (!intel_read_infoframe(encoder, pipe_config,
> > + HDMI_INFOFRAME_TYPE_SPD,
> > + &pipe_config->infoframes.spd))
> > + DRM_ERROR("failed to read SPD infoframe:\n");
> > +
> > + if (!intel_read_infoframe(encoder, pipe_config,
> > + HDMI_INFOFRAME_TYPE_VENDOR,
> > + &pipe_config->infoframes.hdmi))
> > + DRM_ERROR("failed to read HDMI infoframe\n");
> > }
> >
> > static enum intel_output_type
> > diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> > index 357624a6bfe2..75ec99b85232 100644
> > --- a/drivers/gpu/drm/i915/intel_drv.h
> > +++ b/drivers/gpu/drm/i915/intel_drv.h
> > @@ -1185,6 +1185,10 @@ struct intel_digital_port {
> > const struct intel_crtc_state *crtc_state,
> > unsigned int type,
> > const void *frame, ssize_t len);
> > + ssize_t (*read_infoframe)(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + unsigned int type,
> > + void *frame, ssize_t len);
> > void (*set_infoframes)(struct intel_encoder *encoder,
> > bool enable,
> > const struct intel_crtc_state *crtc_state,
> > @@ -1867,6 +1871,12 @@ void intel_infoframe_init(struct intel_digital_port *intel_dig_port);
> > u32 intel_hdmi_infoframes_enabled(struct intel_encoder *encoder,
> > const struct intel_crtc_state *crtc_state);
> > u32 intel_hdmi_infoframe_enable(unsigned int type);
> > +void intel_hdmi_read_gcp_infoframe(struct intel_encoder *encoder,
> > + struct intel_crtc_state *crtc_state);
> > +bool intel_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + enum hdmi_infoframe_type type,
> > + union hdmi_infoframe *frame);
> >
> >
> > /* intel_lvds.c */
> > diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> > index 491001fc0fad..27cb6ec32e94 100644
> > --- a/drivers/gpu/drm/i915/intel_hdmi.c
> > +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> > @@ -203,6 +203,31 @@ static void g4x_write_infoframe(struct intel_encoder *encoder,
> > POSTING_READ(VIDEO_DIP_CTL);
> > }
> >
> > +static ssize_t g4x_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + unsigned int type,
> > + void *frame, ssize_t len)
> > +{
> > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > + u32 val, *data = frame;
> > + int i;
> > +
> > + val = I915_READ(VIDEO_DIP_CTL);
> > +
> > + if ((val & g4x_infoframe_enable(type)) == 0)
> > + return 0;
> > +
> > + val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
> > + val |= g4x_infoframe_index(type);
> > +
> > + I915_WRITE(VIDEO_DIP_CTL, val);
> > +
> > + for (i = 0; i < len; i += 4)
> > + *data++ = I915_READ(VIDEO_DIP_DATA);
> > +
> > + return len;
> > +}
> > +
> > static u32 g4x_infoframes_enabled(struct intel_encoder *encoder,
> > const struct intel_crtc_state *pipe_config)
> > {
> > @@ -258,6 +283,32 @@ static void ibx_write_infoframe(struct intel_encoder *encoder,
> > POSTING_READ(reg);
> > }
> >
> > +static ssize_t ibx_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + unsigned int type,
> > + void *frame, ssize_t len)
> > +{
> > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> > + u32 val, *data = frame;
> > + int i;
> > +
> > + val = I915_READ(TVIDEO_DIP_CTL(crtc->pipe));
> > +
> > + if ((val & g4x_infoframe_enable(type)) == 0)
> > + return 0;
> > +
> > + val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
> > + val |= g4x_infoframe_index(type);
> > +
> > + I915_WRITE(TVIDEO_DIP_CTL(crtc->pipe), val);
> > +
> > + for (i = 0; i < len; i += 4)
> > + *data++ = I915_READ(TVIDEO_DIP_DATA(crtc->pipe));
> > +
> > + return len;
> > +}
> > +
> > static u32 ibx_infoframes_enabled(struct intel_encoder *encoder,
> > const struct intel_crtc_state *pipe_config)
> > {
> > @@ -319,6 +370,32 @@ static void cpt_write_infoframe(struct intel_encoder *encoder,
> > POSTING_READ(reg);
> > }
> >
> > +static ssize_t cpt_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + unsigned int type,
> > + void *frame, ssize_t len)
> > +{
> > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> > + u32 val, *data = frame;
> > + int i;
> > +
> > + val = I915_READ(TVIDEO_DIP_CTL(crtc->pipe));
> > +
> > + if ((val & g4x_infoframe_enable(type)) == 0)
> > + return 0;
> > +
> > + val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
> > + val |= g4x_infoframe_index(type);
> > +
> > + I915_WRITE(TVIDEO_DIP_CTL(crtc->pipe), val);
> > +
> > + for (i = 0; i < len; i += 4)
> > + *data++ = I915_READ(TVIDEO_DIP_DATA(crtc->pipe));
> > +
> > + return len;
> > +}
> > +
> > static u32 cpt_infoframes_enabled(struct intel_encoder *encoder,
> > const struct intel_crtc_state *pipe_config)
> > {
> > @@ -373,6 +450,32 @@ static void vlv_write_infoframe(struct intel_encoder *encoder,
> > POSTING_READ(reg);
> > }
> >
> > +static ssize_t vlv_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + unsigned int type,
> > + void *frame, ssize_t len)
> > +{
> > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> > + u32 val, *data = frame;
> > + int i;
> > +
> > + val = I915_READ(VLV_TVIDEO_DIP_CTL(crtc->pipe));
> > +
> > + if ((val & g4x_infoframe_enable(type)) == 0)
> > + return 0;
> > +
> > + val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
> > + val |= g4x_infoframe_index(type);
> > +
> > + I915_WRITE(VLV_TVIDEO_DIP_CTL(crtc->pipe), val);
> > +
> > + for (i = 0; i < len; i += 4)
> > + *data++ = I915_READ(VLV_TVIDEO_DIP_DATA(crtc->pipe));
> > +
> > + return len;
> > +}
> > +
> > static u32 vlv_infoframes_enabled(struct intel_encoder *encoder,
> > const struct intel_crtc_state *pipe_config)
> > {
> > @@ -425,6 +528,28 @@ static void hsw_write_infoframe(struct intel_encoder *encoder,
> > POSTING_READ(ctl_reg);
> > }
> >
> > +static ssize_t hsw_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + unsigned int type,
> > + void *frame, ssize_t len)
> > +{
> > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
> > + u32 val, *data = frame;
> > + int i;
> > +
> > + val = I915_READ(HSW_TVIDEO_DIP_CTL(cpu_transcoder));
> > +
> > + if ((val & hsw_infoframe_enable(type)) == 0)
> > + return 0;
> > +
> > + for (i = 0; i < len; i += 4)
> > + *data++ = I915_READ(hsw_dip_data_reg(dev_priv, cpu_transcoder,
> > + type, i >> 2));
> > +
> > + return len;
> > +}
> > +
> > static u32 hsw_infoframes_enabled(struct intel_encoder *encoder,
> > const struct intel_crtc_state *pipe_config)
> > {
> > @@ -530,6 +655,39 @@ static void intel_write_infoframe(struct intel_encoder *encoder,
> > intel_dig_port->write_infoframe(encoder, crtc_state, type, buffer, len);
> > }
> >
> > +bool intel_read_infoframe(struct intel_encoder *encoder,
> > + const struct intel_crtc_state *crtc_state,
> > + enum hdmi_infoframe_type type,
> > + union hdmi_infoframe *frame)
>
> Bit a bikeshed: I'd drop the boolean here and pull the debug output in.
> That way you can give a bit better hint about what's going wrong. And less
> duplicated code. You can still print the type.
Sure.
>
> > +{
> > + struct intel_digital_port *intel_dig_port = enc_to_dig_port(&encoder->base);
> > + u8 buffer[VIDEO_DIP_DATA_SIZE];
> > + ssize_t len;
> > + int ret;
> > +
> > + if ((crtc_state->infoframes.enable &
> > + intel_hdmi_infoframe_enable(type)) == 0)
> > + return true;
>
> Afaiui you only need this because g4x doesn't check the pipe (well, port)
> association. But then all the tests once again check this by confirming
> that the infoframe they should read out is enabled. I'd drop the check in
> the various hw-specific readout functions (it's duplicated). That should
> still work with g4x here, as long as you filter at this level here.
Yeah, that seems like a good idea.
I do have additional fixes for g4x infoframes/audio somewhere
that I should also send out at some point. The state checker
gets rather upset with the current code when more than one
port wants infoframes/audio enabled.
>
> With or without the bikesheds:
>
> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>
> > +
> > + len = intel_dig_port->read_infoframe(encoder, crtc_state,
> > + type, buffer, sizeof(buffer));
> > + if (len == 0)
> > + return true;
> > +
> > + /* Fill the 'hole' (see big comment above) at position 3 */
> > + memmove(&buffer[1], &buffer[0], 3);
> > +
> > + /* see comment above for the reason for this offset */
> > + ret = hdmi_infoframe_unpack(frame, buffer + 1, sizeof(buffer) - 1);
> > + if (ret)
> > + return false;
> > +
> > + if (frame->any.type != type)
> > + return false;
> > +
> > + return true;
> > +}
> > +
> > static bool
> > intel_hdmi_compute_avi_infoframe(struct intel_encoder *encoder,
> > struct intel_crtc_state *crtc_state,
> > @@ -784,6 +942,29 @@ static bool intel_hdmi_set_gcp_infoframe(struct intel_encoder *encoder,
> > return true;
> > }
> >
> > +void intel_hdmi_read_gcp_infoframe(struct intel_encoder *encoder,
> > + struct intel_crtc_state *crtc_state)
> > +{
> > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> > + i915_reg_t reg;
> > +
> > + if ((crtc_state->infoframes.enable &
> > + intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GENERAL_CONTROL)) == 0)
> > + return;
> > +
> > + if (HAS_DDI(dev_priv))
> > + reg = HSW_TVIDEO_DIP_GCP(crtc_state->cpu_transcoder);
> > + else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> > + reg = VLV_TVIDEO_DIP_GCP(crtc->pipe);
> > + else if (HAS_PCH_SPLIT(dev_priv))
> > + reg = TVIDEO_DIP_GCP(crtc->pipe);
> > + else
> > + return;
> > +
> > + crtc_state->infoframes.gcp = I915_READ(reg);
> > +}
> > +
> > static void intel_hdmi_compute_gcp_infoframe(struct intel_encoder *encoder,
> > struct intel_crtc_state *crtc_state,
> > struct drm_connector_state *conn_state)
> > @@ -1382,6 +1563,23 @@ static void intel_hdmi_get_config(struct intel_encoder *encoder,
> > pipe_config->base.adjusted_mode.crtc_clock = dotclock;
> >
> > pipe_config->lane_count = 4;
> > +
> > + intel_hdmi_read_gcp_infoframe(encoder, pipe_config);
> > +
> > + if (!intel_read_infoframe(encoder, pipe_config,
> > + HDMI_INFOFRAME_TYPE_AVI,
> > + &pipe_config->infoframes.avi))
> > + DRM_ERROR("failed to read AVI infoframe\n");
> > +
> > + if (!intel_read_infoframe(encoder, pipe_config,
> > + HDMI_INFOFRAME_TYPE_SPD,
> > + &pipe_config->infoframes.spd))
> > + DRM_ERROR("failed to read SPD infoframe:\n");
> > +
> > + if (!intel_read_infoframe(encoder, pipe_config,
> > + HDMI_INFOFRAME_TYPE_VENDOR,
> > + &pipe_config->infoframes.hdmi))
> > + DRM_ERROR("failed to read HDMI infoframe\n");
> > }
> >
> > static void intel_enable_hdmi_audio(struct intel_encoder *encoder,
> > @@ -2481,22 +2679,27 @@ void intel_infoframe_init(struct intel_digital_port *intel_dig_port)
> >
> > if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
> > intel_dig_port->write_infoframe = vlv_write_infoframe;
> > + intel_dig_port->read_infoframe = vlv_read_infoframe;
> > intel_dig_port->set_infoframes = vlv_set_infoframes;
> > intel_dig_port->infoframes_enabled = vlv_infoframes_enabled;
> > } else if (IS_G4X(dev_priv)) {
> > intel_dig_port->write_infoframe = g4x_write_infoframe;
> > + intel_dig_port->read_infoframe = g4x_read_infoframe;
> > intel_dig_port->set_infoframes = g4x_set_infoframes;
> > intel_dig_port->infoframes_enabled = g4x_infoframes_enabled;
> > } else if (HAS_DDI(dev_priv)) {
> > intel_dig_port->write_infoframe = hsw_write_infoframe;
> > + intel_dig_port->read_infoframe = hsw_read_infoframe;
> > intel_dig_port->set_infoframes = hsw_set_infoframes;
> > intel_dig_port->infoframes_enabled = hsw_infoframes_enabled;
> > } else if (HAS_PCH_IBX(dev_priv)) {
> > intel_dig_port->write_infoframe = ibx_write_infoframe;
> > + intel_dig_port->read_infoframe = ibx_read_infoframe;
> > intel_dig_port->set_infoframes = ibx_set_infoframes;
> > intel_dig_port->infoframes_enabled = ibx_infoframes_enabled;
> > } else {
> > intel_dig_port->write_infoframe = cpt_write_infoframe;
> > + intel_dig_port->read_infoframe = cpt_read_infoframe;
> > intel_dig_port->set_infoframes = cpt_set_infoframes;
> > intel_dig_port->infoframes_enabled = cpt_infoframes_enabled;
> > }
> > --
> > 2.16.4
> >
> > _______________________________________________
> > 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
--
Ville Syrjälä
Intel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2018-09-24 16:52 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 18:51 [PATCH 00/18] drm/i915: Infoframe precompute/check Ville Syrjala
2018-09-20 18:51 ` [PATCH 01/18] video/hdmi: Constify 'buffer' to the unpack functions Ville Syrjala
2018-09-21 8:03 ` Hans Verkuil
2018-09-20 18:51 ` [PATCH 02/18] video/hdmi: Pass buffer size to infoframe " Ville Syrjala
2018-09-21 8:06 ` Hans Verkuil
2018-09-20 18:51 ` [PATCH 03/18] video/hdmi: Constify infoframe passed to the log functions Ville Syrjala
2018-09-21 8:06 ` Hans Verkuil
2018-09-20 18:51 ` [PATCH 04/18] video/hdmi: Constify infoframe passed to the pack functions Ville Syrjala
2018-09-21 8:24 ` Hans Verkuil
2018-09-21 14:30 ` Ville Syrjälä
2018-09-21 14:33 ` [PATCH v3 " Ville Syrjala
2018-10-01 19:10 ` Ville Syrjälä
2018-10-02 6:37 ` Hans Verkuil
2018-09-20 18:51 ` [PATCH 05/18] video/hdmi: Add an enum for HDMI packet types Ville Syrjala
2018-09-21 8:41 ` Hans Verkuil
2018-09-21 14:01 ` Ville Syrjälä
2018-09-21 14:12 ` Hans Verkuil
2018-09-21 15:07 ` Ville Syrjälä
2018-09-20 18:51 ` [PATCH 06/18] video/hdmi: Handle the MPEG Source infoframe Ville Syrjala
2018-09-21 8:28 ` Hans Verkuil
2018-09-21 13:53 ` Ville Syrjälä
2018-09-21 15:09 ` [PATCH v2 " Ville Syrjala
2018-09-20 18:51 ` [PATCH 07/18] video/hdmi: Handle the NTSC VBI infoframe Ville Syrjala
2018-09-21 8:30 ` Hans Verkuil
2018-09-21 13:54 ` Ville Syrjälä
2018-09-21 15:10 ` [PATCH v2 " Ville Syrjala
2018-09-20 18:51 ` [PATCH 08/18] drm/i915: Use memmove() for punching the hole into infoframes Ville Syrjala
2018-09-21 13:52 ` Daniel Vetter
2018-09-20 18:51 ` [PATCH 09/18] drm/i915: Pass intel_encoder to infoframe functions Ville Syrjala
2018-09-21 13:59 ` Daniel Vetter
2018-09-21 15:03 ` Ville Syrjälä
2018-09-20 18:51 ` [PATCH 10/18] drm/i915: Add the missing HDMI gamut metadata packet stuff Ville Syrjala
2018-09-21 14:15 ` [Intel-gfx] " Daniel Vetter
2018-09-20 18:51 ` [PATCH 11/18] drm/i915: Return the mask of enabled infoframes from ->inforame_enabled() Ville Syrjala
2018-09-24 15:51 ` Daniel Vetter
2018-09-24 16:36 ` [Intel-gfx] " Ville Syrjälä
2018-10-01 6:55 ` Daniel Vetter
2018-10-01 19:29 ` Ville Syrjälä
2018-09-20 18:51 ` [PATCH 12/18] drm/i915: Store mask of enabled infoframes in the crtc state Ville Syrjala
2018-09-24 15:51 ` [Intel-gfx] " Daniel Vetter
2018-09-20 18:51 ` [PATCH 13/18] drm/i915: Precompute HDMI infoframes Ville Syrjala
2018-09-24 15:58 ` Daniel Vetter
2018-09-24 16:42 ` Ville Syrjälä
2018-09-20 18:51 ` [PATCH 14/18] drm/i915: Read out " Ville Syrjala
2018-09-24 16:08 ` Daniel Vetter
2018-09-24 16:52 ` Ville Syrjälä [this message]
2018-09-20 18:51 ` [PATCH 15/18] drm/i915/sdvo: Precompute " Ville Syrjala
2018-09-20 18:51 ` [PATCH 16/18] drm/i915/sdvo: Read out " Ville Syrjala
2018-09-24 16:10 ` [Intel-gfx] " Daniel Vetter
2018-09-24 17:13 ` Ville Syrjälä
2018-10-01 6:59 ` Daniel Vetter
2018-10-01 13:35 ` Ville Syrjälä
2018-10-01 16:48 ` Daniel Vetter
2018-09-20 18:51 ` [PATCH 17/18] drm/i915: Check infoframe state in intel_pipe_config_compare() Ville Syrjala
2018-09-24 16:12 ` Daniel Vetter
2018-10-01 20:35 ` [Intel-gfx] " Ville Syrjälä
2018-10-02 8:16 ` Daniel Vetter
2018-09-20 18:51 ` [PATCH 18/18] drm/i915: Include infoframes in the crtc state dump Ville Syrjala
2018-09-24 16:14 ` [Intel-gfx] " Daniel Vetter
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