From c6ddc5f3d05dfc7bbb2a5f1e477aed98510a71bb Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 30 Jun 2016 15:32:46 +0100 Subject: [PATCH] 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/1467297225-21379-3-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_drv.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index b98afbd33235..51eb1cd86957 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -2535,8 +2535,6 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on) u32 val; int err; -#define COND (I915_READ(VLV_GTLC_SURVIVABILITY_REG) & VLV_GFX_CLK_STATUS_BIT) - val = I915_READ(VLV_GTLC_SURVIVABILITY_REG); val &= ~VLV_GFX_CLK_FORCE_ON_BIT; if (force_on) @@ -2546,13 +2544,16 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on) if (!force_on) return 0; - err = wait_for(COND, 20); + err = intel_wait_for_register(dev_priv, + VLV_GTLC_SURVIVABILITY_REG, + VLV_GFX_CLK_STATUS_BIT, + VLV_GFX_CLK_STATUS_BIT, + 20); if (err) DRM_ERROR("timeout waiting for GFX clock force-on (%08x)\n", I915_READ(VLV_GTLC_SURVIVABILITY_REG)); return err; -#undef COND } static int vlv_allow_gt_wake(struct drm_i915_private *dev_priv, bool allow) -- 2.30.2