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Merge tag 'drm-intel-fixes-2022-06-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

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drm/i915 fixes for v5.19-rc4:
- Revert low voltage SKU check removal to fix display issues
- Apply PLL DCO fraction workaround for ADL-S
- Don't show engine classes not present in client fdinfo

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87a6a4syrr.fsf@intel.com
This commit is contained in:
Dave Airlie 2022-06-24 09:58:06 +10:00
commit 08d27daaaa
3 changed files with 34 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

32
drivers/gpu/drm/i915/display/intel_dp.c
View file

@ -388,13 +388,23 @@ static int dg2_max_source_rate(struct intel_dp *intel_dp)
return intel_dp_is_edp(intel_dp) ? 810000 : 1350000;
}
static bool is_low_voltage_sku(struct drm_i915_private *i915, enum phy phy)
{
u32 voltage;
voltage = intel_de_read(i915, ICL_PORT_COMP_DW3(phy)) & VOLTAGE_INFO_MASK;
return voltage == VOLTAGE_INFO_0_85V;
}
static int icl_max_source_rate(struct intel_dp *intel_dp)
{
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);
enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
if (intel_phy_is_combo(dev_priv, phy) && !intel_dp_is_edp(intel_dp))
if (intel_phy_is_combo(dev_priv, phy) &&
(is_low_voltage_sku(dev_priv, phy) || !intel_dp_is_edp(intel_dp)))
return 540000;
return 810000;
@ -402,7 +412,23 @@ static int icl_max_source_rate(struct intel_dp *intel_dp)
static int ehl_max_source_rate(struct intel_dp *intel_dp)
{
if (intel_dp_is_edp(intel_dp))
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);
enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
if (intel_dp_is_edp(intel_dp) || is_low_voltage_sku(dev_priv, phy))
return 540000;
return 810000;
}
static int dg1_max_source_rate(struct intel_dp *intel_dp)
{
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
if (intel_phy_is_combo(i915, phy) && is_low_voltage_sku(i915, phy))
return 540000;
return 810000;
@ -445,7 +471,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
max_rate = dg2_max_source_rate(intel_dp);
else if (IS_ALDERLAKE_P(dev_priv) || IS_ALDERLAKE_S(dev_priv) ||
IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
max_rate = 810000;
max_rate = dg1_max_source_rate(intel_dp);
else if (IS_JSL_EHL(dev_priv))
max_rate = ehl_max_source_rate(intel_dp);
else

4
drivers/gpu/drm/i915/display/intel_dpll_mgr.c
View file

@ -2396,7 +2396,7 @@ static void icl_wrpll_params_populate(struct skl_wrpll_params *params,
}
/*
* Display WA #22010492432: ehl, tgl, adl-p
* Display WA #22010492432: ehl, tgl, adl-s, adl-p
* Program half of the nominal DCO divider fraction value.
*/
static bool
@ -2404,7 +2404,7 @@ ehl_combo_pll_div_frac_wa_needed(struct drm_i915_private *i915)
{
return ((IS_PLATFORM(i915, INTEL_ELKHARTLAKE) &&
IS_JSL_EHL_DISPLAY_STEP(i915, STEP_B0, STEP_FOREVER)) ||
IS_TIGERLAKE(i915) || IS_ALDERLAKE_P(i915)) &&
IS_TIGERLAKE(i915) || IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) &&
i915->dpll.ref_clks.nssc == 38400;
}

5
drivers/gpu/drm/i915/i915_drm_client.c
View file

@ -116,8 +116,9 @@ show_client_class(struct seq_file *m,
total += busy_add(ctx, class);
rcu_read_unlock();
seq_printf(m, "drm-engine-%s:\t%llu ns\n",
uabi_class_names[class], total);
if (capacity)
seq_printf(m, "drm-engine-%s:\t%llu ns\n",
uabi_class_names[class], total);
if (capacity > 1)
seq_printf(m, "drm-engine-capacity-%s:\t%u\n",