[PATCH RT 14/20] drm,radeon,i915: Use preempt_disable/enable_rt() where recommended
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2016-03-02 15:41:44
Also in:
lkml
Subsystem:
drm drivers, intel drm i915 driver (meteor lake, dg2 and older excluding poulsbo, moorestown and derivative), radeon and amdgpu drm drivers, the rest · Maintainers:
David Airlie, Simona Vetter, Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin, Alex Deucher, Christian König, Linus Torvalds
3.18.27-rt27-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Mike Galbraith <redacted> DRM folks identified the spots, so use them. Signed-off-by: Mike Galbraith <redacted> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: linux-rt-users <redacted> Signed-off-by: Thomas Gleixner <redacted> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- drivers/gpu/drm/i915/i915_irq.c | 2 ++ drivers/gpu/drm/radeon/radeon_display.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 23329b48766f..763e9c004f23 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c@@ -943,6 +943,7 @@ static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ + preempt_disable_rt(); /* Get optional system timestamp before query. */ if (stime)
@@ -994,6 +995,7 @@ static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, *etime = ktime_get(); /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ + preempt_enable_rt(); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 21e6e9745d00..7acf4536c827 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c@@ -1784,6 +1784,7 @@ int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, unsigned int fl struct radeon_device *rdev = dev->dev_private; /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ + preempt_disable_rt(); /* Get optional system timestamp before query. */ if (stime)
@@ -1876,6 +1877,7 @@ int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, unsigned int fl *etime = ktime_get(); /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ + preempt_enable_rt(); /* Decode into vertical and horizontal scanout position. */ *vpos = position & 0x1fff;
--
2.7.0