From: Chris Wilson Date: Thu, 30 Jun 2016 14:32:48 +0000 (+0100) Subject: drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=41ce405e6894;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register() 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 Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-5-git-send-email-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index fb5758f4f9d3..c580e24095b0 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -2588,8 +2588,7 @@ static int vlv_wait_for_gt_wells(struct drm_i915_private *dev_priv, mask = VLV_GTLC_PW_MEDIA_STATUS_MASK | VLV_GTLC_PW_RENDER_STATUS_MASK; val = wait_for_on ? mask : 0; -#define COND ((I915_READ(VLV_GTLC_PW_STATUS) & mask) == val) - if (COND) + if ((I915_READ(VLV_GTLC_PW_STATUS) & mask) == val) return 0; DRM_DEBUG_KMS("waiting for GT wells to go %s (%08x)\n", @@ -2600,13 +2599,14 @@ static int vlv_wait_for_gt_wells(struct drm_i915_private *dev_priv, * RC6 transitioning can be delayed up to 2 msec (see * valleyview_enable_rps), use 3 msec for safety. */ - err = wait_for(COND, 3); + err = intel_wait_for_register(dev_priv, + VLV_GTLC_PW_STATUS, mask, val, + 3); if (err) DRM_ERROR("timeout waiting for GT wells to go %s\n", onoff(wait_for_on)); return err; -#undef COND } static void vlv_check_no_gt_access(struct drm_i915_private *dev_priv)