* [REBASED PATCH 1/3] drm/i915/dp: move TPS3 logic to where it's used
2015-09-03 8:16 [REBASED PATCH 0/3] drm/i915: tps3 updates, use yesno helper Jani Nikula
@ 2015-09-03 8:16 ` Jani Nikula
2015-09-03 8:16 ` [REBASED PATCH 2/3] drm/i915: ignore link rate in TPS3 selection Jani Nikula
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Jani Nikula @ 2015-09-03 8:16 UTC (permalink / raw)
To: intel-gfx; +Cc: jani.nikula
There is no need to have a separate flag for tps3 as the information is
only used at one location. Move the logic there to make it easier to
follow.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 31 +++++++++++++++++--------------
drivers/gpu/drm/i915/intel_drv.h | 1 -
2 files changed, 17 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f8f4d99440c1..9a6fb5dbf021 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3812,13 +3812,25 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
void
intel_dp_complete_link_train(struct intel_dp *intel_dp)
{
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct drm_device *dev = dig_port->base.base.dev;
bool channel_eq = false;
int tries, cr_tries;
uint32_t DP = intel_dp->DP;
uint32_t training_pattern = DP_TRAINING_PATTERN_2;
- /* Training Pattern 3 for HBR2 or 1.2 devices that support it*/
- if (intel_dp->link_rate == 540000 || intel_dp->use_tps3)
+ /*
+ * Training Pattern 3 for HBR2 or 1.2 devices that support it.
+ *
+ * Intel platforms that support HBR2 also support TPS3. TPS3 support is
+ * also mandatory for downstream devices that support HBR2.
+ *
+ * Due to WaDisableHBR2 SKL < B0 is the only exception where TPS3 is
+ * supported but still not enabled.
+ */
+ if (intel_dp->link_rate == 540000 ||
+ (intel_dp_source_supports_hbr2(dev) &&
+ drm_dp_tps3_supported(intel_dp->dpcd)))
training_pattern = DP_TRAINING_PATTERN_3;
/* channel equalization */
@@ -4000,18 +4012,9 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
}
}
- /* Training Pattern 3 support, Intel platforms that support HBR2 alone
- * have support for TP3 hence that check is used along with dpcd check
- * to ensure TP3 can be enabled.
- * SKL < B0: due it's WaDisableHBR2 is the only exception where TP3 is
- * supported but still not enabled.
- */
- if (drm_dp_tps3_supported(intel_dp->dpcd) &&
- intel_dp_source_supports_hbr2(dev)) {
- intel_dp->use_tps3 = true;
- DRM_DEBUG_KMS("Displayport TPS3 supported\n");
- } else
- intel_dp->use_tps3 = false;
+ DRM_DEBUG_KMS("Display Port TPS3 support: source %s, sink %s\n",
+ intel_dp_source_supports_hbr2(dev) ? "yes" : "no",
+ drm_dp_tps3_supported(intel_dp->dpcd) ? "yes" : "no");
/* Intermediate frequency support */
if (is_edp(intel_dp) &&
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index cf971ef60633..46484e4ac1cd 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -746,7 +746,6 @@ struct intel_dp {
enum pipe pps_pipe;
struct edp_power_seq pps_delays;
- bool use_tps3;
bool can_mst; /* this port supports mst */
bool is_mst;
int active_mst_links;
--
2.1.4
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Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 5+ messages in thread* [REBASED PATCH 2/3] drm/i915: ignore link rate in TPS3 selection
2015-09-03 8:16 [REBASED PATCH 0/3] drm/i915: tps3 updates, use yesno helper Jani Nikula
2015-09-03 8:16 ` [REBASED PATCH 1/3] drm/i915/dp: move TPS3 logic to where it's used Jani Nikula
@ 2015-09-03 8:16 ` Jani Nikula
2015-09-03 8:16 ` [REBASED PATCH 3/3] drm/i915: use the yesno helper for logging Jani Nikula
2015-09-04 8:17 ` [REBASED PATCH 0/3] drm/i915: tps3 updates, use yesno helper Daniel Vetter
3 siblings, 0 replies; 5+ messages in thread
From: Jani Nikula @ 2015-09-03 8:16 UTC (permalink / raw)
To: intel-gfx; +Cc: jani.nikula
TPS3 is mandatory for downstream devices that support HBR2, and Intel
platforms that support HBR2 also support TPS3. Whenever TPS3 is
supported by both the source and sink, it should be used. In other
words, whenever the source and sink are capable of 5.4 Gbps link, we
should anyway go for TPS3, regardless of the link rate being selected.
Log an error if the sink has advertized HBR2 capability without TPS3
capability.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 9a6fb5dbf021..44e753d5f7f5 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3828,10 +3828,11 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
* Due to WaDisableHBR2 SKL < B0 is the only exception where TPS3 is
* supported but still not enabled.
*/
- if (intel_dp->link_rate == 540000 ||
- (intel_dp_source_supports_hbr2(dev) &&
- drm_dp_tps3_supported(intel_dp->dpcd)))
+ if (intel_dp_source_supports_hbr2(dev) &&
+ drm_dp_tps3_supported(intel_dp->dpcd))
training_pattern = DP_TRAINING_PATTERN_3;
+ else if (intel_dp->link_rate == 540000)
+ DRM_ERROR("5.4 Gbps link rate without HBR2/TPS3 support\n");
/* channel equalization */
if (!intel_dp_set_link_train(intel_dp, &DP,
--
2.1.4
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 5+ messages in thread* [REBASED PATCH 3/3] drm/i915: use the yesno helper for logging
2015-09-03 8:16 [REBASED PATCH 0/3] drm/i915: tps3 updates, use yesno helper Jani Nikula
2015-09-03 8:16 ` [REBASED PATCH 1/3] drm/i915/dp: move TPS3 logic to where it's used Jani Nikula
2015-09-03 8:16 ` [REBASED PATCH 2/3] drm/i915: ignore link rate in TPS3 selection Jani Nikula
@ 2015-09-03 8:16 ` Jani Nikula
2015-09-04 8:17 ` [REBASED PATCH 0/3] drm/i915: tps3 updates, use yesno helper Daniel Vetter
3 siblings, 0 replies; 5+ messages in thread
From: Jani Nikula @ 2015-09-03 8:16 UTC (permalink / raw)
To: intel-gfx; +Cc: jani.nikula
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 17 +++++++----------
drivers/gpu/drm/i915/intel_dp.c | 4 ++--
drivers/gpu/drm/i915/intel_pm.c | 4 ++--
3 files changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 4563f8b955ea..41629faaf939 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1382,17 +1382,16 @@ static int ironlake_drpc_info(struct seq_file *m)
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
- seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
- "yes" : "no");
+ seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
seq_printf(m, "Boost freq: %d\n",
(rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
MEMMODE_BOOST_FREQ_SHIFT);
seq_printf(m, "HW control enabled: %s\n",
- rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
+ yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
seq_printf(m, "SW control enabled: %s\n",
- rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
+ yesno(rgvmodectl & MEMMODE_SWMODE_EN));
seq_printf(m, "Gated voltage change: %s\n",
- rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
+ yesno(rgvmodectl & MEMMODE_RCLK_GATE));
seq_printf(m, "Starting frequency: P%d\n",
(rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
seq_printf(m, "Max P-state: P%d\n",
@@ -1401,7 +1400,7 @@ static int ironlake_drpc_info(struct seq_file *m)
seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
seq_printf(m, "Render standby enabled: %s\n",
- (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
+ yesno(!(rstdbyctl & RCX_SW_EXIT)));
seq_puts(m, "Current RS state: ");
switch (rstdbyctl & RSX_STATUS_MASK) {
case RSX_STATUS_ON:
@@ -2844,8 +2843,7 @@ static void intel_dp_info(struct seq_file *m,
struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
- seq_printf(m, "\taudio support: %s\n", intel_dp->has_audio ? "yes" :
- "no");
+ seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
if (intel_encoder->type == INTEL_OUTPUT_EDP)
intel_panel_info(m, &intel_connector->panel);
}
@@ -2856,8 +2854,7 @@ static void intel_hdmi_info(struct seq_file *m,
struct intel_encoder *intel_encoder = intel_connector->encoder;
struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
- seq_printf(m, "\taudio support: %s\n", intel_hdmi->has_audio ? "yes" :
- "no");
+ seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
}
static void intel_lvds_info(struct seq_file *m,
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 44e753d5f7f5..45ab25e479ae 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4014,8 +4014,8 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
}
DRM_DEBUG_KMS("Display Port TPS3 support: source %s, sink %s\n",
- intel_dp_source_supports_hbr2(dev) ? "yes" : "no",
- drm_dp_tps3_supported(intel_dp->dpcd) ? "yes" : "no");
+ yesno(intel_dp_source_supports_hbr2(dev)),
+ yesno(drm_dp_tps3_supported(intel_dp->dpcd)));
/* Intermediate frequency support */
if (is_edp(intel_dp) &&
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ea4966144650..b2fbd819559f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5549,7 +5549,7 @@ static void cherryview_enable_rps(struct drm_device *dev)
/* RPS code assumes GPLL is used */
WARN_ONCE((val & GPLLENABLE) == 0, "GPLL not enabled\n");
- DRM_DEBUG_DRIVER("GPLL enabled? %s\n", val & GPLLENABLE ? "yes" : "no");
+ DRM_DEBUG_DRIVER("GPLL enabled? %s\n", yesno(val & GPLLENABLE));
DRM_DEBUG_DRIVER("GPU status: 0x%08x\n", val);
dev_priv->rps.cur_freq = (val >> 8) & 0xff;
@@ -5639,7 +5639,7 @@ static void valleyview_enable_rps(struct drm_device *dev)
/* RPS code assumes GPLL is used */
WARN_ONCE((val & GPLLENABLE) == 0, "GPLL not enabled\n");
- DRM_DEBUG_DRIVER("GPLL enabled? %s\n", val & GPLLENABLE ? "yes" : "no");
+ DRM_DEBUG_DRIVER("GPLL enabled? %s\n", yesno(val & GPLLENABLE));
DRM_DEBUG_DRIVER("GPU status: 0x%08x\n", val);
dev_priv->rps.cur_freq = (val >> 8) & 0xff;
--
2.1.4
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^ permalink raw reply related [flat|nested] 5+ messages in thread