microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

drm/i915: Set AGPBUSY# bit in init_clock_gating 

I don't see why we wouldn't want interrupts to wake up the CPU from C3
always, so just set the AGPBUSY# bit in gen3_init_clock_gating().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-02-25 15:13:38 +02:00 коммит произвёл Daniel Vetter
Родитель 4dfbd12c33
Коммит 12fabbcb9f
2 изменённых файлов: 3 добавлений и 7 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

7
drivers/gpu/drm/i915/i915_irq.c
Просмотреть файл

@ -2628,10 +2628,6 @@ static int i915_enable_vblank(struct drm_device *dev, int pipe)
else else
i915_enable_pipestat(dev_priv, pipe, i915_enable_pipestat(dev_priv, pipe,
PIPE_VBLANK_INTERRUPT_STATUS); PIPE_VBLANK_INTERRUPT_STATUS);
/* maintain vblank delivery even in deep C-states */
if (INTEL_INFO(dev)->gen == 3)
I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS));
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
return 0; return 0;
@ -2695,9 +2691,6 @@ static void i915_disable_vblank(struct drm_device *dev, int pipe)
unsigned long irqflags; unsigned long irqflags;
spin_lock_irqsave(&dev_priv->irq_lock, irqflags); spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
if (INTEL_INFO(dev)->gen == 3)
I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_AGPBUSY_DIS));
i915_disable_pipestat(dev_priv, pipe, i915_disable_pipestat(dev_priv, pipe,
PIPE_VBLANK_INTERRUPT_STATUS | PIPE_VBLANK_INTERRUPT_STATUS |
PIPE_START_VBLANK_INTERRUPT_STATUS); PIPE_START_VBLANK_INTERRUPT_STATUS);

3
drivers/gpu/drm/i915/intel_pm.c
Просмотреть файл

@ -5504,6 +5504,9 @@ static void gen3_init_clock_gating(struct drm_device *dev)
/* IIR "flip pending" means done if this bit is set */ /* IIR "flip pending" means done if this bit is set */
I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE)); I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
/* interrupts should cause a wake up from C3 */
I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS));
} }
static void i85x_init_clock_gating(struct drm_device *dev) static void i85x_init_clock_gating(struct drm_device *dev)