Adding debian version 5.10.209-2.debian/5.10.209-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 80 insertions, 0 deletions

diff --git a/debian/patches-rt/0251-drm-i915-Don-t-disable-interrupts-on-PREEMPT_RT-duri.patch b/debian/patches-rt/0251-drm-i915-Don-t-disable-interrupts-on-PREEMPT_RT-duri.patch
new file mode 100644
index 000000000..dd9329591
--- /dev/null
+++ b/debian/patches-rt/0251-drm-i915-Don-t-disable-interrupts-on-PREEMPT_RT-duri.patch
@@ -0,0 +1,80 @@
+From 940e64f8d4b797c592e6736a1fae0d0ff2087e95 Mon Sep 17 00:00:00 2001
+From: Mike Galbraith <umgwanakikbuti@gmail.com>
+Date: Sat, 27 Feb 2016 09:01:42 +0100
+Subject: [PATCH 251/323] drm/i915: Don't disable interrupts on PREEMPT_RT
+ during atomic updates
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz
+
+Commit
+   8d7849db3eab7 ("drm/i915: Make sprite updates atomic")
+
+started disabling interrupts across atomic updates. This breaks on PREEMPT_RT
+because within this section the code attempt to acquire spinlock_t locks which
+are sleeping locks on PREEMPT_RT.
+
+According to the comment the interrupts are disabled to avoid random delays and
+not required for protection or synchronisation.
+
+Don't disable interrupts on PREEMPT_RT during atomic updates.
+
+[bigeasy: drop local locks, commit message]
+
+Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ drivers/gpu/drm/i915/display/intel_sprite.c | 15 ++++++++++-----
+ 1 file changed, 10 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
+index 12f7128b777f..a65061e3e1d3 100644
+--- a/drivers/gpu/drm/i915/display/intel_sprite.c
++++ b/drivers/gpu/drm/i915/display/intel_sprite.c
+@@ -118,7 +118,8 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state)
+ 			"PSR idle timed out 0x%x, atomic update may fail\n",
+ 			psr_status);
+ 
+-	local_irq_disable();
++	if (!IS_ENABLED(CONFIG_PREEMPT_RT))
++		local_irq_disable();
+ 
+ 	crtc->debug.min_vbl = min;
+ 	crtc->debug.max_vbl = max;
+@@ -143,11 +144,13 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state)
+ 			break;
+ 		}
+ 
+-		local_irq_enable();
++		if (!IS_ENABLED(CONFIG_PREEMPT_RT))
++			local_irq_enable();
+ 
+ 		timeout = schedule_timeout(timeout);
+ 
+-		local_irq_disable();
++		if (!IS_ENABLED(CONFIG_PREEMPT_RT))
++			local_irq_disable();
+ 	}
+ 
+ 	finish_wait(wq, &wait);
+@@ -180,7 +183,8 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state)
+ 	return;
+ 
+ irq_disable:
+-	local_irq_disable();
++	if (!IS_ENABLED(CONFIG_PREEMPT_RT))
++		local_irq_disable();
+ }
+ 
+ /**
+@@ -218,7 +222,8 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
+ 		new_crtc_state->uapi.event = NULL;
+ 	}
+ 
+-	local_irq_enable();
++	if (!IS_ENABLED(CONFIG_PREEMPT_RT))
++		local_irq_enable();
+ 
+ 	if (intel_vgpu_active(dev_priv))
+ 		return;
+-- 
+2.43.0
+