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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-26 10:19:19 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-26 17:09:44 +0000 |
| commit | 9fcee2f77e88f1d7c3f72fca418cdae3e79a6e83 (patch) | |
| tree | 1ea77d4b3d6092ea96be32a7e5ceacfc19caaa89 /drivers/gpu/drm/i915/i915_irq.c | |
| parent | 611032bfa71a7634e801142016f2d41485f8638f (diff) | |
| download | op-kernel-dev-9fcee2f77e88f1d7c3f72fca418cdae3e79a6e83.zip op-kernel-dev-9fcee2f77e88f1d7c3f72fca418cdae3e79a6e83.tar.gz | |
drm/i915: Report the failure to write to the punit
The write to the punit may fail, so propagate the error code back to its
callers. Of particular interest are the RPS writes, so add appropriate
user error codes and logging.
v2: Add DEBUG for failed frequency changes during RPS.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126101919.13211-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 3f3c908..059d66b 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1209,7 +1209,10 @@ static void gen6_pm_rps_work(struct work_struct *work) new_delay += adj; new_delay = clamp_t(int, new_delay, min, max); - intel_set_rps(dev_priv, new_delay); + if (intel_set_rps(dev_priv, new_delay)) { + DRM_DEBUG_DRIVER("Failed to set new GPU frequency\n"); + dev_priv->rps.last_adj = 0; + } mutex_unlock(&dev_priv->rps.hw_lock); } |
