diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9e80020ae2f..cba51c2b512 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4060,18 +4060,17 @@ void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj) if (!drm_core_check_feature(dev, DRIVER_MODESET)) return; - if (IS_I945G(dev) || IS_I945GM(dev)) { - u32 fw_blc_self; - - DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); - fw_blc_self = I915_READ(FW_BLC_SELF); - fw_blc_self &= ~FW_BLC_SELF_EN; - I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); - } + if (!dev_priv->busy) { + if (IS_I945G(dev) || IS_I945GM(dev)) { + u32 fw_blc_self; - if (!dev_priv->busy) + DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); + fw_blc_self = I915_READ(FW_BLC_SELF); + fw_blc_self &= ~FW_BLC_SELF_EN; + I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); + } dev_priv->busy = true; - else + } else mod_timer(&dev_priv->idle_timer, jiffies + msecs_to_jiffies(GPU_IDLE_TIMEOUT)); @@ -4083,6 +4082,14 @@ void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj) intel_fb = to_intel_framebuffer(crtc->fb); if (intel_fb->obj == obj) { if (!intel_crtc->busy) { + if (IS_I945G(dev) || IS_I945GM(dev)) { + u32 fw_blc_self; + + DRM_DEBUG_DRIVER("disable memory self refresh on 945\n"); + fw_blc_self = I915_READ(FW_BLC_SELF); + fw_blc_self &= ~FW_BLC_SELF_EN; + I915_WRITE(FW_BLC_SELF, fw_blc_self | FW_BLC_SELF_EN_MASK); + } /* Non-busy -> busy, upclock */ intel_increase_pllclock(crtc, true); intel_crtc->busy = true; |