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 <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-59-git-send-email-chris@chris-wilson.co.uk
diff --git a/drivers/gpu/drm/i915/intel_sideband.c b/drivers/gpu/drm/i915/intel_sideband.c
index 11a25ab..1a840bf 100644
--- a/drivers/gpu/drm/i915/intel_sideband.c
+++ b/drivers/gpu/drm/i915/intel_sideband.c
@@ -256,8 +256,11 @@
tmp = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IOWR;
I915_WRITE(SBI_CTL_STAT, SBI_BUSY | tmp);
- if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
- 100)) {
+ if (intel_wait_for_register(dev_priv,
+ SBI_CTL_STAT,
+ SBI_BUSY | SBI_RESPONSE_FAIL,
+ 0,
+ 100)) {
DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
return;
}