openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915: Update ring freq for full gpu freq range 

In __gen6_update_ring_freq, use the full range of
possible gpu frequencies from max_freq to min_freq.
The actual gpu frequency could be outside the range
from max_freq_softlimit to min_freq_softlimit due
to power/thermal constraints.

Signed-off-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Tom O'Rourke 2014-11-19 14:21:55 -08:00 committed by Daniel Vetter
parent c7f3153a61
commit 6985b35218
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_pm.c
View File

@ -4915,9 +4915,9 @@ static void __gen6_update_ring_freq(struct drm_device *dev)
* to use for memory access. We do this by specifying the IA frequency
* the PCU should use as a reference to determine the ring frequency.
*/
for (gpu_freq = dev_priv->rps.max_freq_softlimit; gpu_freq >= dev_priv->rps.min_freq_softlimit;
for (gpu_freq = dev_priv->rps.max_freq; gpu_freq >= dev_priv->rps.min_freq;
gpu_freq--) {
int diff = dev_priv->rps.max_freq_softlimit - gpu_freq;
int diff = dev_priv->rps.max_freq - gpu_freq;
unsigned int ia_freq = 0, ring_freq = 0;
if (INTEL_INFO(dev)->gen >= 8) {