On Sun, Aug 23, 2015 at 05:52:47PM +0530, Sagar Arun Kamble wrote: > On BXT, We Observe timeout for forcewake request completion with 2ms polling > period as given here: > [drm:fw_domains_get] ERROR render: timed out waiting for forcewake ack > request. > Polling for 50ms is recommended to avoid these timeouts. > > Change-Id: Ie715b0069a3049606e9602bc5e97a6511890864d > Signed-off-by: Sagar Arun Kamble <sagar.a.kam...@intel.com>
Probably needs cc: stable plus a pile of bugzilla links all over ... -Daniel > --- > drivers/gpu/drm/i915/intel_uncore.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_uncore.c > b/drivers/gpu/drm/i915/intel_uncore.c > index 9d3c2e4..2df03b1 100644 > --- a/drivers/gpu/drm/i915/intel_uncore.c > +++ b/drivers/gpu/drm/i915/intel_uncore.c > @@ -27,7 +27,7 @@ > > #include <linux/pm_runtime.h> > > -#define FORCEWAKE_ACK_TIMEOUT_MS 2 > +#define FORCEWAKE_ACK_TIMEOUT_MS 50 > > #define __raw_i915_read8(dev_priv__, reg__) readb((dev_priv__)->regs + > (reg__)) > #define __raw_i915_write8(dev_priv__, reg__, val__) writeb(val__, > (dev_priv__)->regs + (reg__)) > -- > 1.9.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
