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From: Sean Paul <sean@poorly.run>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: daniel.vetter@ffwll.ch, rodrigo.vivi@intel.com,
	Sean Paul <seanpaul@chromium.org>
Subject: [PATCH v2 03/12] drm/i915: WARN if HDCP signalling is enabled upon disable
Date: Thu, 12 Dec 2019 14:02:21 -0500	[thread overview]
Message-ID: <20191212190230.188505-4-sean@poorly.run> (raw)
In-Reply-To: <20191212190230.188505-1-sean@poorly.run>

From: Sean Paul <seanpaul@chromium.org>

HDCP signalling should not be left on, WARN if it is

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>

Changes in v2:
- Added to the set in lieu of just clearing the bit
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 5b6f32517c75..4a5bdf3ef51d 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -1951,6 +1951,8 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
 	i915_reg_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
 	u32 val = I915_READ(reg);
 
+	WARN_ON(val & TRANS_DDI_HDCP_SIGNALLING);
+
 	if (INTEL_GEN(dev_priv) >= 12) {
 		val &= ~(TRANS_DDI_FUNC_ENABLE | TGL_TRANS_DDI_PORT_MASK |
 			 TRANS_DDI_DP_VC_PAYLOAD_ALLOC);
-- 
Sean Paul, Software Engineer, Google / Chromium OS

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Sean Paul <sean@poorly.run>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: daniel.vetter@ffwll.ch, Sean Paul <seanpaul@chromium.org>
Subject: [Intel-gfx] [PATCH v2 03/12] drm/i915: WARN if HDCP signalling is enabled upon disable
Date: Thu, 12 Dec 2019 14:02:21 -0500	[thread overview]
Message-ID: <20191212190230.188505-4-sean@poorly.run> (raw)
In-Reply-To: <20191212190230.188505-1-sean@poorly.run>

From: Sean Paul <seanpaul@chromium.org>

HDCP signalling should not be left on, WARN if it is

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>

Changes in v2:
- Added to the set in lieu of just clearing the bit
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 5b6f32517c75..4a5bdf3ef51d 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -1951,6 +1951,8 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
 	i915_reg_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
 	u32 val = I915_READ(reg);
 
+	WARN_ON(val & TRANS_DDI_HDCP_SIGNALLING);
+
 	if (INTEL_GEN(dev_priv) >= 12) {
 		val &= ~(TRANS_DDI_FUNC_ENABLE | TGL_TRANS_DDI_PORT_MASK |
 			 TRANS_DDI_DP_VC_PAYLOAD_ALLOC);
-- 
Sean Paul, Software Engineer, Google / Chromium OS

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2019-12-12 19:02 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-12 19:02 [PATCH v2 00/12] drm/i915: Add support for HDCP 1.4 over MST connectors Sean Paul
2019-12-12 19:02 ` [Intel-gfx] " Sean Paul
2019-12-12 19:02 ` [PATCH v2 01/12] drm/i915: Fix sha_text population code Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-12 19:02   ` Sean Paul
2019-12-13 10:20   ` Ramalingam C
2019-12-13 10:20     ` [Intel-gfx] " Ramalingam C
2019-12-13 10:20     ` Ramalingam C
2019-12-12 19:02 ` [PATCH v2 02/12] drm/i915: Clear the repeater bit on HDCP disable Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-12 19:02   ` Sean Paul
2019-12-13 10:29   ` Ramalingam C
2019-12-13 10:29     ` [Intel-gfx] " Ramalingam C
2019-12-13 10:29     ` Ramalingam C
2019-12-13 19:07     ` Sean Paul
2019-12-13 19:07       ` [Intel-gfx] " Sean Paul
2019-12-13 19:07       ` Sean Paul
2019-12-12 19:02 ` Sean Paul [this message]
2019-12-12 19:02   ` [Intel-gfx] [PATCH v2 03/12] drm/i915: WARN if HDCP signalling is enabled upon disable Sean Paul
2019-12-13 10:37   ` Ramalingam C
2019-12-13 10:37     ` [Intel-gfx] " Ramalingam C
2019-12-12 19:02 ` [PATCH v2 04/12] drm/i915: Intercept Aksv writes in the aux hooks Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-13 10:52   ` Ramalingam C
2019-12-13 10:52     ` [Intel-gfx] " Ramalingam C
2019-12-12 19:02 ` [PATCH v2 05/12] drm/i915: Use the cpu_transcoder in intel_hdcp to toggle HDCP signalling Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-13 10:43   ` Ramalingam C
2019-12-13 10:43     ` [Intel-gfx] " Ramalingam C
2019-12-12 19:02 ` [PATCH v2 06/12] drm/i915: Factor out hdcp->value assignments Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-13 11:11   ` Ramalingam C
2019-12-13 11:11     ` [Intel-gfx] " Ramalingam C
2019-12-12 19:02 ` [PATCH v2 07/12] drm/i915: Protect workers against disappearing connectors Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-13 11:10   ` Ramalingam C
2019-12-13 11:10     ` [Intel-gfx] " Ramalingam C
2019-12-13 19:04     ` Sean Paul
2019-12-13 19:04       ` [Intel-gfx] " Sean Paul
2019-12-12 19:02 ` [PATCH v2 08/12] drm/i915: Don't fully disable HDCP on a port if multiple pipes are using it Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-13 11:58   ` Ramalingam C
2019-12-13 11:58     ` [Intel-gfx] " Ramalingam C
2019-12-13 19:03     ` Sean Paul
2019-12-13 19:03       ` [Intel-gfx] " Sean Paul
2019-12-12 19:02 ` [PATCH v2 09/12] drm/i915: Support DP MST in enc_to_dig_port() function Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-12 19:02 ` [PATCH v2 10/12] drm/i915: Use ddi_update_pipe in intel_dp_mst Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-12 19:02 ` [PATCH v2 11/12] drm/i915: Expose HDCP shim functions from dp for use by dp_mst Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-13 11:25   ` Ville Syrjälä
2019-12-13 11:25     ` [Intel-gfx] " Ville Syrjälä
2019-12-13 11:59     ` Jani Nikula
2019-12-13 11:59       ` [Intel-gfx] " Jani Nikula
2019-12-12 19:02 ` [PATCH v2 12/12] drm/i915: Add HDCP 1.4 support for MST connectors Sean Paul
2019-12-12 19:02   ` [Intel-gfx] " Sean Paul
2019-12-12 21:12 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915: Add support for HDCP 1.4 over MST connectors (rev2) Patchwork
2019-12-12 21:34 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2019-12-12 22:50   ` Sean Paul
2019-12-12 22:55     ` Chris Wilson

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