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* [PATCH] drm/i915/cnp: Properly handle VBT ddc pin out of bounds.
@ 2018-01-24 18:56 Rodrigo Vivi
  2018-01-24 19:39 ` ✓ Fi.CI.BAT: success for " Patchwork
                   ` (8 more replies)
  0 siblings, 9 replies; 27+ messages in thread
From: Rodrigo Vivi @ 2018-01-24 18:56 UTC (permalink / raw)
  To: intel-gfx; +Cc: Jani Nikula, Kai Heng Feng, Rodrigo Vivi

If the table result is out of bounds on the array map
there is something really wrong with VBT pin so we don't
return that vbt_pin, but only return 0 instead.

This basically reverts commit 'a8e6f3888b05 ("drm/i915/cnp:
Ignore VBT request for know invalid DDC pin.")'

Also this properly fixes commit 9c3b2689d01f ("drm/i915/cnl:
Map VBT DDC Pin to BSpec DDC Pin.")

Fixes: a8e6f3888b05 ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.")
Fixes: 9c3b2689d01f ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.")
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Kai Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/intel_bios.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 95f0b310d656..844c1e8f574f 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1115,16 +1115,11 @@ static const u8 cnp_ddc_pin_map[] = {
 
 static u8 map_ddc_pin(struct drm_i915_private *dev_priv, u8 vbt_pin)
 {
-	if (HAS_PCH_CNP(dev_priv)) {
-		if (vbt_pin > 0 && vbt_pin < ARRAY_SIZE(cnp_ddc_pin_map))
-			return cnp_ddc_pin_map[vbt_pin];
-		if (vbt_pin > GMBUS_PIN_4_CNP) {
-			DRM_DEBUG_KMS("Ignoring alternate pin: VBT claims DDC pin %d, which is not valid for this platform\n", vbt_pin);
-			return 0;
-		}
-	}
+	if (HAS_PCH_CNP(dev_priv) &&
+	    vbt_pin > 0 && vbt_pin < ARRAY_SIZE(cnp_ddc_pin_map))
+		return cnp_ddc_pin_map[vbt_pin];
 
-	return vbt_pin;
+	return 0;
 }
 
 static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
-- 
2.13.6

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^ permalink raw reply related	[flat|nested] 27+ messages in thread
* [PATCH 07/10] drm/i915: For HPD connected port use hpd_pin instead of port.
@ 2018-01-25 19:27 Rodrigo Vivi
  2018-01-25 21:37 ` [PATCH] drm/i915/cnp: Properly handle VBT ddc pin out of bounds Rodrigo Vivi
  0 siblings, 1 reply; 27+ messages in thread
From: Rodrigo Vivi @ 2018-01-25 19:27 UTC (permalink / raw)
  To: intel-gfx; +Cc: Lucas De Marchi, Rodrigo Vivi

Let's try to simplify this mapping to hpd_pin -> bit
instead using port.
So for CNL with port F where we have this port using
hdp_pin and bits of other ports we don't need to duplicated
the mapping.

But for now this is only a re-org with no functional change
expected.

v2: Add missing lines and nuke @port reference from code
    documentation. (Ville)

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c     | 150 ++++++++++++++++++------------------
 drivers/gpu/drm/i915/intel_drv.h    |   3 +-
 drivers/gpu/drm/i915/intel_lspcon.c |   3 +-
 3 files changed, 77 insertions(+), 79 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index ae3b0b030177..8579d2d09231 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4487,173 +4487,174 @@ edp_detect(struct intel_dp *intel_dp)
 	return status;
 }
 
-static bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool ibx_digital_port_connected(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u32 bit;
 
-	switch (port->base.port) {
-	case PORT_B:
+	switch (encoder->hpd_pin) {
+	case HPD_PORT_B:
 		bit = SDE_PORTB_HOTPLUG;
 		break;
-	case PORT_C:
+	case HPD_PORT_C:
 		bit = SDE_PORTC_HOTPLUG;
 		break;
-	case PORT_D:
+	case HPD_PORT_D:
 		bit = SDE_PORTD_HOTPLUG;
 		break;
 	default:
-		MISSING_CASE(port->base.port);
+		MISSING_CASE(encoder->hpd_pin);
 		return false;
 	}
 
 	return I915_READ(SDEISR) & bit;
 }
 
-static bool cpt_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool cpt_digital_port_connected(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u32 bit;
 
-	switch (port->base.port) {
-	case PORT_B:
+	switch (encoder->hpd_pin) {
+	case HPD_PORT_B:
 		bit = SDE_PORTB_HOTPLUG_CPT;
 		break;
-	case PORT_C:
+	case HPD_PORT_C:
 		bit = SDE_PORTC_HOTPLUG_CPT;
 		break;
-	case PORT_D:
+	case HPD_PORT_D:
 		bit = SDE_PORTD_HOTPLUG_CPT;
 		break;
 	default:
-		MISSING_CASE(port->base.port);
+		MISSING_CASE(encoder->hpd_pin);
 		return false;
 	}
 
 	return I915_READ(SDEISR) & bit;
 }
 
-static bool spt_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool spt_digital_port_connected(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u32 bit;
 
-	switch (port->base.port) {
-	case PORT_A:
+	switch (encoder->hpd_pin) {
+	case HPD_PORT_A:
 		bit = SDE_PORTA_HOTPLUG_SPT;
 		break;
-	case PORT_E:
+	case HPD_PORT_E:
 		bit = SDE_PORTE_HOTPLUG_SPT;
 		break;
 	default:
-		return cpt_digital_port_connected(dev_priv, port);
+		return cpt_digital_port_connected(encoder);
 	}
 
 	return I915_READ(SDEISR) & bit;
 }
 
-static bool g4x_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool g4x_digital_port_connected(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u32 bit;
 
-	switch (port->base.port) {
-	case PORT_B:
+	switch (encoder->hpd_pin) {
+	case HPD_PORT_B:
 		bit = PORTB_HOTPLUG_LIVE_STATUS_G4X;
 		break;
-	case PORT_C:
+	case HPD_PORT_C:
 		bit = PORTC_HOTPLUG_LIVE_STATUS_G4X;
 		break;
-	case PORT_D:
+	case HPD_PORT_D:
 		bit = PORTD_HOTPLUG_LIVE_STATUS_G4X;
 		break;
 	default:
-		MISSING_CASE(port->base.port);
+		MISSING_CASE(encoder->hpd_pin);
 		return false;
 	}
 
 	return I915_READ(PORT_HOTPLUG_STAT) & bit;
 }
 
-static bool gm45_digital_port_connected(struct drm_i915_private *dev_priv,
-					struct intel_digital_port *port)
+static bool gm45_digital_port_connected(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u32 bit;
 
-	switch (port->base.port) {
-	case PORT_B:
+	switch (encoder->hpd_pin) {
+	case HPD_PORT_B:
 		bit = PORTB_HOTPLUG_LIVE_STATUS_GM45;
 		break;
-	case PORT_C:
+	case HPD_PORT_C:
 		bit = PORTC_HOTPLUG_LIVE_STATUS_GM45;
 		break;
-	case PORT_D:
+	case HPD_PORT_D:
 		bit = PORTD_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	default:
-		MISSING_CASE(port->base.port);
+		MISSING_CASE(encoder->hpd_pin);
 		return false;
 	}
 
 	return I915_READ(PORT_HOTPLUG_STAT) & bit;
 }
 
-static bool ilk_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool ilk_digital_port_connected(struct intel_encoder *encoder)
 {
-	if (port->base.port == PORT_A)
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+	if (encoder->hpd_pin == HPD_PORT_A)
 		return I915_READ(DEISR) & DE_DP_A_HOTPLUG;
 	else
-		return ibx_digital_port_connected(dev_priv, port);
+		return ibx_digital_port_connected(encoder);
 }
 
-static bool snb_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool snb_digital_port_connected(struct intel_encoder *encoder)
 {
-	if (port->base.port == PORT_A)
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+	if (encoder->hpd_pin == HPD_PORT_A)
 		return I915_READ(DEISR) & DE_DP_A_HOTPLUG;
 	else
-		return cpt_digital_port_connected(dev_priv, port);
+		return cpt_digital_port_connected(encoder);
 }
 
-static bool ivb_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool ivb_digital_port_connected(struct intel_encoder *encoder)
 {
-	if (port->base.port == PORT_A)
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+	if (encoder->hpd_pin == HPD_PORT_A)
 		return I915_READ(DEISR) & DE_DP_A_HOTPLUG_IVB;
 	else
-		return cpt_digital_port_connected(dev_priv, port);
+		return cpt_digital_port_connected(encoder);
 }
 
-static bool bdw_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool bdw_digital_port_connected(struct intel_encoder *encoder)
 {
-	if (port->base.port == PORT_A)
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+	if (encoder->hpd_pin == HPD_PORT_A)
 		return I915_READ(GEN8_DE_PORT_ISR) & GEN8_PORT_DP_A_HOTPLUG;
 	else
-		return cpt_digital_port_connected(dev_priv, port);
+		return cpt_digital_port_connected(encoder);
 }
 
-static bool bxt_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *intel_dig_port)
+static bool bxt_digital_port_connected(struct intel_encoder *encoder)
 {
-	struct intel_encoder *intel_encoder = &intel_dig_port->base;
-	enum port port;
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u32 bit;
 
-	port = intel_hpd_pin_to_port(intel_encoder->hpd_pin);
-	switch (port) {
-	case PORT_A:
+	switch (encoder->hpd_pin) {
+	case HPD_PORT_A:
 		bit = BXT_DE_PORT_HP_DDIA;
 		break;
-	case PORT_B:
+	case HPD_PORT_B:
 		bit = BXT_DE_PORT_HP_DDIB;
 		break;
-	case PORT_C:
+	case HPD_PORT_C:
 		bit = BXT_DE_PORT_HP_DDIC;
 		break;
 	default:
-		MISSING_CASE(port);
+		MISSING_CASE(encoder->hpd_pin);
 		return false;
 	}
 
@@ -4662,33 +4663,33 @@ static bool bxt_digital_port_connected(struct drm_i915_private *dev_priv,
 
 /*
  * intel_digital_port_connected - is the specified port connected?
- * @dev_priv: i915 private structure
- * @port: the port to test
+ * @encoder: intel_encoder
  *
- * Return %true if @port is connected, %false otherwise.
+ * Return %true if port is connected, %false otherwise.
  */
-bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
-				  struct intel_digital_port *port)
+bool intel_digital_port_connected(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
 	if (HAS_GMCH_DISPLAY(dev_priv)) {
 		if (IS_GM45(dev_priv))
-			return gm45_digital_port_connected(dev_priv, port);
+			return gm45_digital_port_connected(encoder);
 		else
-			return g4x_digital_port_connected(dev_priv, port);
+			return g4x_digital_port_connected(encoder);
 	}
 
 	if (IS_GEN5(dev_priv))
-		return ilk_digital_port_connected(dev_priv, port);
+		return ilk_digital_port_connected(encoder);
 	else if (IS_GEN6(dev_priv))
-		return snb_digital_port_connected(dev_priv, port);
+		return snb_digital_port_connected(encoder);
 	else if (IS_GEN7(dev_priv))
-		return ivb_digital_port_connected(dev_priv, port);
+		return ivb_digital_port_connected(encoder);
 	else if (IS_GEN8(dev_priv))
-		return bdw_digital_port_connected(dev_priv, port);
+		return bdw_digital_port_connected(encoder);
 	else if (IS_GEN9_LP(dev_priv))
-		return bxt_digital_port_connected(dev_priv, port);
+		return bxt_digital_port_connected(encoder);
 	else
-		return spt_digital_port_connected(dev_priv, port);
+		return spt_digital_port_connected(encoder);
 }
 
 static struct edid *
@@ -4747,8 +4748,7 @@ intel_dp_long_pulse(struct intel_connector *connector)
 	/* Can't disconnect eDP, but you can close the lid... */
 	if (intel_dp_is_edp(intel_dp))
 		status = edp_detect(intel_dp);
-	else if (intel_digital_port_connected(dev_priv,
-					      dp_to_dig_port(intel_dp)))
+	else if (intel_digital_port_connected(&dp_to_dig_port(intel_dp)->base))
 		status = intel_dp_detect_dpcd(intel_dp);
 	else
 		status = connector_status_disconnected;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3cee54bc0352..2632ae50ca33 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1670,8 +1670,7 @@ static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
 bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
 int intel_dp_link_required(int pixel_clock, int bpp);
 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
-bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
-				  struct intel_digital_port *port);
+bool intel_digital_port_connected(struct intel_encoder *encoder);
 
 /* intel_dp_aux_backlight.c */
 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c
index dcbc786479f9..8ae8f42f430a 100644
--- a/drivers/gpu/drm/i915/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -167,11 +167,10 @@ static void lspcon_resume_in_pcon_wa(struct intel_lspcon *lspcon)
 {
 	struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
 	unsigned long start = jiffies;
 
 	while (1) {
-		if (intel_digital_port_connected(dev_priv, dig_port)) {
+		if (intel_digital_port_connected(&dig_port->base)) {
 			DRM_DEBUG_KMS("LSPCON recovering in PCON mode after %u ms\n",
 				      jiffies_to_msecs(jiffies - start));
 			return;
-- 
2.13.6

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^ permalink raw reply related	[flat|nested] 27+ messages in thread
end of thread, other threads:[~2018-04-09 19:12 UTC | newest]

Thread overview: 27+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-01-24 18:56 [PATCH] drm/i915/cnp: Properly handle VBT ddc pin out of bounds Rodrigo Vivi
2018-01-24 19:39 ` ✓ Fi.CI.BAT: success for " Patchwork
2018-01-24 22:12 ` ✗ Fi.CI.IGT: failure " Patchwork
2018-01-25  4:22 ` [PATCH] " Kai Heng Feng
2018-01-25 10:09 ` Jani Nikula
2018-01-25 15:19   ` Rodrigo Vivi
2018-01-25 15:33     ` Jani Nikula
2018-01-25 15:40       ` Rodrigo Vivi
2018-01-25 15:52         ` Jani Nikula
2018-01-25 18:07           ` Lucas De Marchi
2018-01-25 18:25             ` Rodrigo Vivi
2018-01-25 22:24               ` Rodrigo Vivi
2018-01-25 22:25               ` Rodrigo Vivi
2018-01-25 22:52                 ` Lucas De Marchi
2018-01-29  5:42                 ` Kai Heng Feng
2018-01-29 22:12                   ` Rodrigo Vivi
2018-03-23 13:07                     ` Timo Aaltonen
2018-04-09  9:48                       ` Jani Nikula
2018-04-09 19:12                         ` Rodrigo Vivi
2018-01-25 18:14           ` Rodrigo Vivi
2018-01-25 15:37 ` ✓ Fi.CI.BAT: success for drm/i915/cnp: Properly handle VBT ddc pin out of bounds. (rev2) Patchwork
2018-01-25 16:02 ` ✓ Fi.CI.BAT: success for drm/i915/cnp: Properly handle VBT ddc pin out of bounds. (rev3) Patchwork
2018-01-25 17:21 ` ✗ Fi.CI.IGT: failure " Patchwork
2018-01-25 22:46 ` ✓ Fi.CI.BAT: success for drm/i915/cnp: Properly handle VBT ddc pin out of bounds. (rev5) Patchwork
2018-01-26  0:11 ` ✓ Fi.CI.IGT: " Patchwork
  -- strict thread matches above, loose matches on Subject: below --
2018-01-25 19:27 [PATCH 07/10] drm/i915: For HPD connected port use hpd_pin instead of port Rodrigo Vivi
2018-01-25 21:37 ` [PATCH] drm/i915/cnp: Properly handle VBT ddc pin out of bounds Rodrigo Vivi
2018-01-25 22:01   ` Rodrigo Vivi

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