UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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/1467297225-21379-10-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-30 15:32:53 +01:00
parent 058fee93e2
commit b8511f534c
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/i915/intel_display.c
View File

@ -1124,8 +1124,9 @@ static void intel_wait_for_pipe_off(struct intel_crtc *crtc)
i915_reg_t reg = PIPECONF(cpu_transcoder); i915_reg_t reg = PIPECONF(cpu_transcoder);
/* Wait for the Pipe State to go off */ /* Wait for the Pipe State to go off */
if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, if (intel_wait_for_register(dev_priv,
100)) reg, I965_PIPECONF_ACTIVE, 0,
100))
WARN(1, "pipe_off wait timed out\n"); WARN(1, "pipe_off wait timed out\n");
} else { } else {
/* Wait for the display line to settle */ /* Wait for the display line to settle */