From: Greg Kroah-Hartman Date: Mon, 26 Jun 2017 07:29:41 +0000 (+0200) Subject: 4.9-stable patches X-Git-Tag: v3.18.59~20 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9ea7c15805ddcc2ee5a911e0add1c33d3677639b;p=thirdparty%2Fkernel%2Fstable-queue.git 4.9-stable patches added patches: drm-i915-plumb-the-correct-acquire-ctx-into-intel_crtc_disable_noatomic.patch --- diff --git a/queue-4.9/drm-i915-plumb-the-correct-acquire-ctx-into-intel_crtc_disable_noatomic.patch b/queue-4.9/drm-i915-plumb-the-correct-acquire-ctx-into-intel_crtc_disable_noatomic.patch new file mode 100644 index 00000000000..3ddf9e10850 --- /dev/null +++ b/queue-4.9/drm-i915-plumb-the-correct-acquire-ctx-into-intel_crtc_disable_noatomic.patch @@ -0,0 +1,69 @@ +From b7f5dd36e0c5cb9ca1070a5e0f22f666bcff07ef Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= +Date: Thu, 1 Jun 2017 17:36:14 +0300 +Subject: drm/i915: Plumb the correct acquire ctx into intel_crtc_disable_noatomic() +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +From: Ville Syrjälä + +commit b7f5dd36e0c5cb9ca1070a5e0f22f666bcff07ef upstream. + +If intel_crtc_disable_noatomic() were to ever get called during resume +we'd end up deadlocking since resume has its own acqcuire_ctx but +intel_crtc_disable_noatomic() still tries to use the +mode_config.acquire_ctx. Pass down the correct acquire ctx from the top. + +Cc: Maarten Lankhorst +Fixes: e2c8b8701e2d ("drm/i915: Use atomic helpers for suspend, v2.") +Signed-off-by: Ville Syrjälä +Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-3-ville.syrjala@linux.intel.com +Reviewed-by: Maarten Lankhorst +(cherry picked from commit da1d0e265535634bba80d44510b864c620549bee) +Signed-off-by: Jani Nikula +Signed-off-by: Greg Kroah-Hartman + +--- + drivers/gpu/drm/i915/intel_display.c | 9 +++++---- + 1 file changed, 5 insertions(+), 4 deletions(-) + +--- a/drivers/gpu/drm/i915/intel_display.c ++++ b/drivers/gpu/drm/i915/intel_display.c +@@ -6838,7 +6838,8 @@ static void i9xx_crtc_disable(struct int + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); + } + +-static void intel_crtc_disable_noatomic(struct drm_crtc *crtc) ++static void intel_crtc_disable_noatomic(struct drm_crtc *crtc, ++ struct drm_modeset_acquire_ctx *ctx) + { + struct intel_encoder *encoder; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); +@@ -6868,7 +6869,7 @@ static void intel_crtc_disable_noatomic( + return; + } + +- state->acquire_ctx = crtc->dev->mode_config.acquire_ctx; ++ state->acquire_ctx = ctx; + + /* Everything's already locked, -EDEADLK can't happen. */ + crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); +@@ -16607,7 +16608,7 @@ static void intel_sanitize_crtc(struct i + plane = crtc->plane; + to_intel_plane_state(crtc->base.primary->state)->base.visible = true; + crtc->plane = !plane; +- intel_crtc_disable_noatomic(&crtc->base); ++ intel_crtc_disable_noatomic(&crtc->base, ctx); + crtc->plane = plane; + } + +@@ -16623,7 +16624,7 @@ static void intel_sanitize_crtc(struct i + /* Adjust the state of the output pipe according to whether we + * have active connectors/encoders. */ + if (crtc->active && !intel_crtc_has_encoders(crtc)) +- intel_crtc_disable_noatomic(&crtc->base); ++ intel_crtc_disable_noatomic(&crtc->base, ctx); + + if (crtc->active || HAS_GMCH_DISPLAY(dev)) { + /* diff --git a/queue-4.9/series b/queue-4.9/series index d82d4801f82..0ab47cdc819 100644 --- a/queue-4.9/series +++ b/queue-4.9/series @@ -31,3 +31,4 @@ drm-radeon-add-a-px-quirk-for-another-k53tk-variant.patch drm-radeon-add-a-quirk-for-toshiba-satellite-l20-183.patch drm-amdgpu-atom-fix-ps-allocation-size-for-enabledisppowergating.patch drm-amdgpu-adjust-default-display-clock.patch +drm-i915-plumb-the-correct-acquire-ctx-into-intel_crtc_disable_noatomic.patch