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57 lines
2.3 KiB
Diff
57 lines
2.3 KiB
Diff
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From 634b3a4a476e96816d5d6cd5bb9f8900a53f56ba Mon Sep 17 00:00:00 2001
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From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Date: Mon, 23 Nov 2015 10:25:28 +0100
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Subject: drm/i915: Do a better job at disabling primary plane in the noatomic
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case.
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When disable_noatomic is called plane_mask is not correct yet, and
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plane_state->visible = true is left as true after disabling the primary
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plane.
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Other planes are already disabled as part of crtc sanitization, only the
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primary is left active. But the plane_mask is not updated here. It gets
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updated during fb takeover in modeset_gem_init, or set to the new value
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on resume.
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This means that to disable the primary plane 1 << drm_plane_index(primary)
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needs to be used.
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Afterwards because the crtc is no longer active it's forbidden to keep
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plane_state->visible set, or a WARN_ON in
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intel_plane_atomic_calc_changes triggers. There are other code points
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that rely on accurate plane_state->visible too, so make sure the bool is
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cleared.
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The other planes are already disabled in intel_sanitize_crtc, so they
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don't have to be handled here.
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Cc: stable@vger.kernel.org #v4.3, v4.2?
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92655
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Tested-by: Tomas Mezzadra <tmezzadra@gmail.com>
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Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Link: http://patchwork.freedesktop.org/patch/msgid/5652DB88.9070208@linux.intel.com
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(cherry picked from commit 54a4196188eab82e6f0a5f05716626e9f18b8fb6)
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Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
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index 22e86d2..62211ab 100644
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--- a/drivers/gpu/drm/i915/intel_display.c
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+++ b/drivers/gpu/drm/i915/intel_display.c
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@@ -6309,9 +6309,11 @@ static void intel_crtc_disable_noatomic(struct drm_crtc *crtc)
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if (to_intel_plane_state(crtc->primary->state)->visible) {
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intel_crtc_wait_for_pending_flips(crtc);
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intel_pre_disable_primary(crtc);
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+
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+ intel_crtc_disable_planes(crtc, 1 << drm_plane_index(crtc->primary));
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+ to_intel_plane_state(crtc->primary->state)->visible = false;
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}
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- intel_crtc_disable_planes(crtc, crtc->state->plane_mask);
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dev_priv->display.crtc_disable(crtc);
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intel_crtc->active = false;
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intel_update_watermarks(crtc);
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--
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cgit v0.10.2
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