By using the out-of-line intel_wait_for_register() not only do we can efficiency from using the hybrid wait_for() contained within, but we avoid code bloat from the numerous inlined loops, in total (all patches):
text data bss dec hex filename 1078551 4557 416 1083524 108884 drivers/gpu/drm/i915/i915.ko 1070775 4557 416 1075748 106a24 drivers/gpu/drm/i915/i915.ko Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Tvrtko Ursulin <[email protected]> --- drivers/gpu/drm/i915/intel_runtime_pm.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index f212ef31c729..615d0bfaae38 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -1218,7 +1218,6 @@ static void assert_chv_phy_status(struct drm_i915_private *dev_priv) u32 phy_control = dev_priv->chv_phy_control; u32 phy_status = 0; u32 phy_status_mask = 0xffffffff; - u32 tmp; /* * The BIOS can leave the PHY is some weird state @@ -1306,10 +1305,14 @@ static void assert_chv_phy_status(struct drm_i915_private *dev_priv) * The PHY may be busy with some initial calibration and whatnot, * so the power state can take a while to actually change. */ - if (wait_for((tmp = I915_READ(DISPLAY_PHY_STATUS) & phy_status_mask) == phy_status, 10)) - WARN(phy_status != tmp, - "Unexpected PHY_STATUS 0x%08x, expected 0x%08x (PHY_CONTROL=0x%08x)\n", - tmp, phy_status, dev_priv->chv_phy_control); + if (intel_wait_for_register(dev_priv, + DISPLAY_PHY_STATUS, + phy_status_mask, + phy_status, + 10)) + DRM_ERROR("Unexpected PHY_STATUS 0x%08x, expected 0x%08x (PHY_CONTROL=0x%08x)\n", + I915_READ(DISPLAY_PHY_STATUS) & phy_status_mask, + phy_status, dev_priv->chv_phy_control); } #undef BITS_SET -- 2.8.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
