From: José Roberto de Souza <jose.souza@xxxxxxxxx> [ Upstream commit a844cfbe648d15d9f1031c45508c194f2d61c917 ] Return ealier in the functions doing interruption setup for GEN8+ also adding a warning in gen8_de_irq_handler() to let us know that something else is still missing. Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@xxxxxxxxx> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20210408203150.237947-1-jose.souza@xxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/gpu/drm/i915/i915_irq.c | 39 +++++++++++++++++++++++++++------ 1 file changed, 32 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 7eefbdec25a2..e0d0b300c4aa 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2421,6 +2421,8 @@ gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl) u32 iir; enum pipe pipe; + drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_DISPLAY(dev_priv)); + if (master_ctl & GEN8_DE_MISC_IRQ) { iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_MISC_IIR); if (iir) { @@ -3058,14 +3060,13 @@ static void cnp_display_clock_wa(struct drm_i915_private *dev_priv) } } -static void gen8_irq_reset(struct drm_i915_private *dev_priv) +static void gen8_display_irq_reset(struct drm_i915_private *dev_priv) { struct intel_uncore *uncore = &dev_priv->uncore; enum pipe pipe; - gen8_master_intr_disable(dev_priv->uncore.regs); - - gen8_gt_irq_reset(&dev_priv->gt); + if (!HAS_DISPLAY(dev_priv)) + return; intel_uncore_write(uncore, EDP_PSR_IMR, 0xffffffff); intel_uncore_write(uncore, EDP_PSR_IIR, 0xffffffff); @@ -3077,6 +3078,16 @@ static void gen8_irq_reset(struct drm_i915_private *dev_priv) GEN3_IRQ_RESET(uncore, GEN8_DE_PORT_); GEN3_IRQ_RESET(uncore, GEN8_DE_MISC_); +} + +static void gen8_irq_reset(struct drm_i915_private *dev_priv) +{ + struct intel_uncore *uncore = &dev_priv->uncore; + + gen8_master_intr_disable(dev_priv->uncore.regs); + + gen8_gt_irq_reset(&dev_priv->gt); + gen8_display_irq_reset(dev_priv); GEN3_IRQ_RESET(uncore, GEN8_PCU_); if (HAS_PCH_SPLIT(dev_priv)) @@ -3092,6 +3103,9 @@ static void gen11_display_irq_reset(struct drm_i915_private *dev_priv) u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C) | BIT(TRANSCODER_D); + if (!HAS_DISPLAY(dev_priv)) + return; + intel_uncore_write(uncore, GEN11_DISPLAY_INT_CTL, 0); if (DISPLAY_VER(dev_priv) >= 12) { @@ -3714,6 +3728,9 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) BIT(TRANSCODER_C) | BIT(TRANSCODER_D); enum pipe pipe; + if (!HAS_DISPLAY(dev_priv)) + return; + if (DISPLAY_VER(dev_priv) <= 10) de_misc_masked |= GEN8_DE_MISC_GSE; @@ -3797,6 +3814,16 @@ static void gen8_irq_postinstall(struct drm_i915_private *dev_priv) gen8_master_intr_enable(dev_priv->uncore.regs); } +static void gen11_de_irq_postinstall(struct drm_i915_private *dev_priv) +{ + if (!HAS_DISPLAY(dev_priv)) + return; + + gen8_de_irq_postinstall(dev_priv); + + intel_uncore_write(&dev_priv->uncore, GEN11_DISPLAY_INT_CTL, + GEN11_DISPLAY_IRQ_ENABLE); +} static void gen11_irq_postinstall(struct drm_i915_private *dev_priv) { @@ -3807,12 +3834,10 @@ static void gen11_irq_postinstall(struct drm_i915_private *dev_priv) icp_irq_postinstall(dev_priv); gen11_gt_irq_postinstall(&dev_priv->gt); - gen8_de_irq_postinstall(dev_priv); + gen11_de_irq_postinstall(dev_priv); GEN3_IRQ_INIT(uncore, GEN11_GU_MISC_, ~gu_misc_masked, gu_misc_masked); - intel_uncore_write(&dev_priv->uncore, GEN11_DISPLAY_INT_CTL, GEN11_DISPLAY_IRQ_ENABLE); - if (HAS_MASTER_UNIT_IRQ(dev_priv)) { dg1_master_intr_enable(uncore->regs); intel_uncore_posting_read(&dev_priv->uncore, DG1_MSTR_UNIT_INTR); -- 2.30.2
