diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 8f1561616bf..0cbc0e6402b 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -1468,9 +1468,12 @@ static void i9xx_update_wm(struct drm_device *dev) fifo_size = dev_priv->display.get_fifo_size(dev, 0); crtc = intel_get_crtc_for_plane(dev, 0); if (crtc->enabled && crtc->fb) { + int cpp = crtc->fb->bits_per_pixel / 8; + if (IS_GEN2(dev)) + cpp = 4; + planea_wm = intel_calculate_wm(crtc->mode.clock, - wm_info, fifo_size, - crtc->fb->bits_per_pixel / 8, + wm_info, fifo_size, cpp, latency_ns); enabled = crtc; } else @@ -1479,9 +1482,12 @@ static void i9xx_update_wm(struct drm_device *dev) fifo_size = dev_priv->display.get_fifo_size(dev, 1); crtc = intel_get_crtc_for_plane(dev, 1); if (crtc->enabled && crtc->fb) { + int cpp = crtc->fb->bits_per_pixel / 8; + if (IS_GEN2(dev)) + cpp = 4; + planeb_wm = intel_calculate_wm(crtc->mode.clock, - wm_info, fifo_size, - crtc->fb->bits_per_pixel / 8, + wm_info, fifo_size, cpp, latency_ns); if (enabled == NULL) enabled = crtc; @@ -1571,8 +1577,7 @@ static void i830_update_wm(struct drm_device *dev) planea_wm = intel_calculate_wm(crtc->mode.clock, &i830_wm_info, dev_priv->display.get_fifo_size(dev, 0), - crtc->fb->bits_per_pixel / 8, - latency_ns); + 4, latency_ns); fwater_lo = I915_READ(FW_BLC) & ~0xfff; fwater_lo |= (3<<8) | planea_wm; |