Very sorry, I didn't see your reply until Adrian's reply brought this thread back to the top of my email stack.
On 2015-01-07 13:23, Konstantin Belousov wrote: > On Wed, Jan 07, 2015 at 01:01:23AM -0500, Allan Jude wrote: >> I grabbed the latest i915.8.patch from kib@'s website and compiled it >> against r276774 (today) >> >> Machine is a Lenovo T530, booted UEFI, with the nvidia GPU disabled. >> >> CPU: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz (2594.16-MHz K8-class CPU) >> >> It is an Ivy-bridge CPU/GPU >> >> I installed xorg and kde, and when I try to start KDE, it loads, and >> gets so far as showing the FreeBSD wallpaper, then panics: >> > > Is this reproducable ? Yes, every time I try to start KDE it panics. Verified 3 times in a row. > > Try the following patch on top of i915.8. This patch fixes the panic. I can run KDE and enjoy all the graphical goodness. Thank you > > commit 9af6c652745f551e2b6ce5218e350a5e47999feb > Author: Konstantin Belousov <k...@freebsd.org> > Date: Wed Jan 7 20:21:46 2015 +0200 > > Properly move object into gtt domain when needed. > > diff --git a/sys/dev/drm2/i915/i915_gem.c b/sys/dev/drm2/i915/i915_gem.c > index 0f72d08..58cbb59 100644 > --- a/sys/dev/drm2/i915/i915_gem.c > +++ b/sys/dev/drm2/i915/i915_gem.c > @@ -1251,7 +1251,7 @@ i915_gem_shmem_pread(struct drm_device *dev, > * optimizes for the case when the gpu will dirty the data > * anyway again before the next pread happens. */ > needs_clflush = !cpu_cache_is_coherent(dev, obj->cache_level); > - ret = i915_gem_object_wait_rendering(obj); > + ret = i915_gem_object_set_to_gtt_domain(obj, false); > if (ret) > return ret; > } > @@ -1579,7 +1579,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev, > * optimizes for the case when the gpu will use the data > * right away and we therefore have to clflush anyway. */ > needs_clflush_after = cpu_write_needs_clflush(obj); > - ret = i915_gem_object_wait_rendering(obj); > + ret = i915_gem_object_set_to_gtt_domain(obj, true); > if (ret) > return ret; > } > _______________________________________________ > email@example.com mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org" > -- Allan Jude
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