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Merge tag 'drm-intel-fixes-2016-11-09' of git://anongit.freedesktop.o…
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…rg/drm-intel into drm-fixes

i915 fixes, include Sandybridge rendering regression fix.

* tag 'drm-intel-fixes-2016-11-09' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Limit Valleyview and earlier to only using mappable scanout
  drm/i915: Round tile chunks up for constructing partial VMAs
  drm/i915/dp: Extend BDW DP audio workaround to GEN9 platforms
  drm/i915/dp: BDW cdclk fix for DP audio
  drm/i915/vlv: Prevent enabling hpd polling in late suspend
  drm/i915: Respect alternate_ddc_pin for all DDI ports
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Dave Airlie committed Nov 9, 2016
2 parents 020a0bb + 54905ab commit cf53223
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Showing 4 changed files with 94 additions and 43 deletions.
20 changes: 17 additions & 3 deletions drivers/gpu/drm/i915/i915_gem.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1806,7 +1806,7 @@ int i915_gem_fault(struct vm_area_struct *area, struct vm_fault *vmf)
/* Use a partial view if it is bigger than available space */
chunk_size = MIN_CHUNK_PAGES;
if (i915_gem_object_is_tiled(obj))
chunk_size = max(chunk_size, tile_row_pages(obj));
chunk_size = roundup(chunk_size, tile_row_pages(obj));

memset(&view, 0, sizeof(view));
view.type = I915_GGTT_VIEW_PARTIAL;
Expand Down Expand Up @@ -3543,8 +3543,22 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
if (view->type == I915_GGTT_VIEW_NORMAL)
vma = i915_gem_object_ggtt_pin(obj, view, 0, alignment,
PIN_MAPPABLE | PIN_NONBLOCK);
if (IS_ERR(vma))
vma = i915_gem_object_ggtt_pin(obj, view, 0, alignment, 0);
if (IS_ERR(vma)) {
struct drm_i915_private *i915 = to_i915(obj->base.dev);
unsigned int flags;

/* Valleyview is definitely limited to scanning out the first
* 512MiB. Lets presume this behaviour was inherited from the
* g4x display engine and that all earlier gen are similarly
* limited. Testing suggests that it is a little more
* complicated than this. For example, Cherryview appears quite
* happy to scanout from anywhere within its global aperture.
*/
flags = 0;
if (HAS_GMCH_DISPLAY(i915))
flags = PIN_MAPPABLE;
vma = i915_gem_object_ggtt_pin(obj, view, 0, alignment, flags);
}
if (IS_ERR(vma))
goto err_unpin_display;

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29 changes: 26 additions & 3 deletions drivers/gpu/drm/i915/intel_display.c
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Original file line number Diff line number Diff line change
Expand Up @@ -10243,6 +10243,29 @@ static void bxt_modeset_commit_cdclk(struct drm_atomic_state *old_state)
bxt_set_cdclk(to_i915(dev), req_cdclk);
}

static int bdw_adjust_min_pipe_pixel_rate(struct intel_crtc_state *crtc_state,
int pixel_rate)
{
struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);

/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled)
pixel_rate = DIV_ROUND_UP(pixel_rate * 100, 95);

/* BSpec says "Do not use DisplayPort with CDCLK less than
* 432 MHz, audio enabled, port width x4, and link rate
* HBR2 (5.4 GHz), or else there may be audio corruption or
* screen corruption."
*/
if (intel_crtc_has_dp_encoder(crtc_state) &&
crtc_state->has_audio &&
crtc_state->port_clock >= 540000 &&
crtc_state->lane_count == 4)
pixel_rate = max(432000, pixel_rate);

return pixel_rate;
}

/* compute the max rate for new configuration */
static int ilk_max_pixel_rate(struct drm_atomic_state *state)
{
Expand All @@ -10268,9 +10291,9 @@ static int ilk_max_pixel_rate(struct drm_atomic_state *state)

pixel_rate = ilk_pipe_pixel_rate(crtc_state);

/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled)
pixel_rate = DIV_ROUND_UP(pixel_rate * 100, 95);
if (IS_BROADWELL(dev_priv) || IS_GEN9(dev_priv))
pixel_rate = bdw_adjust_min_pipe_pixel_rate(crtc_state,
pixel_rate);

intel_state->min_pixclk[i] = pixel_rate;
}
Expand Down
84 changes: 48 additions & 36 deletions drivers/gpu/drm/i915/intel_hdmi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1799,6 +1799,50 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
}

static u8 intel_hdmi_ddc_pin(struct drm_i915_private *dev_priv,
enum port port)
{
const struct ddi_vbt_port_info *info =
&dev_priv->vbt.ddi_port_info[port];
u8 ddc_pin;

if (info->alternate_ddc_pin) {
DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (VBT)\n",
info->alternate_ddc_pin, port_name(port));
return info->alternate_ddc_pin;
}

switch (port) {
case PORT_B:
if (IS_BROXTON(dev_priv))
ddc_pin = GMBUS_PIN_1_BXT;
else
ddc_pin = GMBUS_PIN_DPB;
break;
case PORT_C:
if (IS_BROXTON(dev_priv))
ddc_pin = GMBUS_PIN_2_BXT;
else
ddc_pin = GMBUS_PIN_DPC;
break;
case PORT_D:
if (IS_CHERRYVIEW(dev_priv))
ddc_pin = GMBUS_PIN_DPD_CHV;
else
ddc_pin = GMBUS_PIN_DPD;
break;
default:
MISSING_CASE(port);
ddc_pin = GMBUS_PIN_DPB;
break;
}

DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (platform default)\n",
ddc_pin, port_name(port));

return ddc_pin;
}

void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
struct intel_connector *intel_connector)
{
Expand All @@ -1808,7 +1852,6 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
struct drm_device *dev = intel_encoder->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
enum port port = intel_dig_port->port;
uint8_t alternate_ddc_pin;

DRM_DEBUG_KMS("Adding HDMI connector on port %c\n",
port_name(port));
Expand All @@ -1826,12 +1869,10 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
connector->doublescan_allowed = 0;
connector->stereo_allowed = 1;

intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port);

switch (port) {
case PORT_B:
if (IS_BROXTON(dev_priv))
intel_hdmi->ddc_bus = GMBUS_PIN_1_BXT;
else
intel_hdmi->ddc_bus = GMBUS_PIN_DPB;
/*
* On BXT A0/A1, sw needs to activate DDIA HPD logic and
* interrupts to check the external panel connection.
Expand All @@ -1842,46 +1883,17 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
intel_encoder->hpd_pin = HPD_PORT_B;
break;
case PORT_C:
if (IS_BROXTON(dev_priv))
intel_hdmi->ddc_bus = GMBUS_PIN_2_BXT;
else
intel_hdmi->ddc_bus = GMBUS_PIN_DPC;
intel_encoder->hpd_pin = HPD_PORT_C;
break;
case PORT_D:
if (WARN_ON(IS_BROXTON(dev_priv)))
intel_hdmi->ddc_bus = GMBUS_PIN_DISABLED;
else if (IS_CHERRYVIEW(dev_priv))
intel_hdmi->ddc_bus = GMBUS_PIN_DPD_CHV;
else
intel_hdmi->ddc_bus = GMBUS_PIN_DPD;
intel_encoder->hpd_pin = HPD_PORT_D;
break;
case PORT_E:
/* On SKL PORT E doesn't have seperate GMBUS pin
* We rely on VBT to set a proper alternate GMBUS pin. */
alternate_ddc_pin =
dev_priv->vbt.ddi_port_info[PORT_E].alternate_ddc_pin;
switch (alternate_ddc_pin) {
case DDC_PIN_B:
intel_hdmi->ddc_bus = GMBUS_PIN_DPB;
break;
case DDC_PIN_C:
intel_hdmi->ddc_bus = GMBUS_PIN_DPC;
break;
case DDC_PIN_D:
intel_hdmi->ddc_bus = GMBUS_PIN_DPD;
break;
default:
MISSING_CASE(alternate_ddc_pin);
}
intel_encoder->hpd_pin = HPD_PORT_E;
break;
case PORT_A:
intel_encoder->hpd_pin = HPD_PORT_A;
/* Internal port only for eDP. */
default:
BUG();
MISSING_CASE(port);
return;
}

if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
Expand Down
4 changes: 3 additions & 1 deletion drivers/gpu/drm/i915/intel_runtime_pm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1139,7 +1139,9 @@ static void vlv_display_power_well_deinit(struct drm_i915_private *dev_priv)

intel_power_sequencer_reset(dev_priv);

intel_hpd_poll_init(dev_priv);
/* Prevent us from re-enabling polling on accident in late suspend */
if (!dev_priv->drm.dev->power.is_suspended)
intel_hpd_poll_init(dev_priv);
}

static void vlv_display_power_well_enable(struct drm_i915_private *dev_priv,
Expand Down

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