This is a note to let you know that I've just added the patch titled drm/i915: Use proper fault mask in interrupt postinstall too to the 5.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-i915-use-proper-fault-mask-in-interrupt-postinst.patch and it can be found in the queue-5.6 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e6cd9825e99c85064c1393c8c484b1318c11ff43 Author: Matt Roper <matthew.d.roper@xxxxxxxxx> Date: Fri Apr 24 16:14:23 2020 -0700 drm/i915: Use proper fault mask in interrupt postinstall too commit 8598eb781cf68fd6cb67c479f1479ae58bd54fb9 upstream. The IRQ postinstall handling had open-coded pipe fault mask selection that never got updated for gen11. Switch it to use gen8_de_pipe_fault_mask() to ensure we don't miss updates for new platforms. Cc: José Roberto de Souza <jose.souza@xxxxxxxxx> Fixes: d506a65d56fd ("drm/i915: Catch GTT fault errors for gen11+ planes") Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20200424231423.4065231-1-matthew.d.roper@xxxxxxxxx Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> (cherry picked from commit 869129ee0c624a78c74e50b51635e183196cd2c6) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index afc6aad9bf8c5..c6f02b0b6c7aa 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -3321,7 +3321,8 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) { struct intel_uncore *uncore = &dev_priv->uncore; - u32 de_pipe_masked = GEN8_PIPE_CDCLK_CRC_DONE; + u32 de_pipe_masked = gen8_de_pipe_fault_mask(dev_priv) | + GEN8_PIPE_CDCLK_CRC_DONE; u32 de_pipe_enables; u32 de_port_masked = GEN8_AUX_CHANNEL_A; u32 de_port_enables; @@ -3332,13 +3333,10 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) de_misc_masked |= GEN8_DE_MISC_GSE; if (INTEL_GEN(dev_priv) >= 9) { - de_pipe_masked |= GEN9_DE_PIPE_IRQ_FAULT_ERRORS; de_port_masked |= GEN9_AUX_CHANNEL_B | GEN9_AUX_CHANNEL_C | GEN9_AUX_CHANNEL_D; if (IS_GEN9_LP(dev_priv)) de_port_masked |= BXT_DE_PORT_GMBUS; - } else { - de_pipe_masked |= GEN8_DE_PIPE_IRQ_FAULT_ERRORS; } if (INTEL_GEN(dev_priv) >= 11)