From 8e1096fd03b6c0e3e668cc2e4f0edbdc7de8fa01 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 9 Oct 2024 21:22:04 +0300
Subject: [PATCH] drm/i915: Disable scanout VT-d workaround for TGL+
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TGL+ should no longer need any VT-d scanout workarounds.
Don't apply any.
Not 100% sure whether pre-SNB might also suffer from this. The
workaround did originate on SNB but who knows if it was just
never caught before that. Not that I ever managed to enable
VT-d any older hardware. Last time I tried on my ILK it ate
the disk!
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241009182207.22900-7-ville.syrjala@linux.intel.com
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 5ae0dea7b245c..15f298d0424ae 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -8743,5 +8743,5 @@ void intel_hpd_poll_fini(struct drm_i915_private *i915)
bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915)
{
- return DISPLAY_VER(i915) >= 6 && i915_vtd_active(i915);
+ return IS_DISPLAY_VER(i915, 6, 11) && i915_vtd_active(i915);
}
--
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