Series acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@xxxxxxxxxxxxx> On Fri, Nov 29, 2019 at 02:59:00PM +0100, Boris Brezillon wrote: > Hello, > > I've recently come to test a 5.4 kernel on a rk3288 platform (T760), > and, as reported by many people on #panfrost, I've hit a page-fault > storm when running various GL apps. > > This series tries to address the problems I could spot during my debug > session, with patch 7 being the most invasive change. I wish I > could find an easier way to fix the "BO mapping teared down while GPU > jobs referencing it are in-flight" problem, as I don't like tagging > complex changes for stable, but this is the best I could come up with. > > Let me know if you have better ideas. > > Regards, > > Boris > > Boris Brezillon (8): > drm/panfrost: Make panfrost_job_run() return an ERR_PTR() instead of > NULL > drm/panfrost: Fix a race in panfrost_ioctl_madvise() > drm/panfrost: Fix a BO leak in panfrost_ioctl_mmap_bo() > drm/panfrost: Fix a race in panfrost_gem_free_object() > drm/panfrost: Open/close the perfcnt BO > drm/panfrost: Make sure imported/exported BOs are never purged > drm/panfrost: Add the panfrost_gem_mapping concept > drm/panfrost: Make sure the shrinker does not reclaim referenced BOs > > drivers/gpu/drm/panfrost/panfrost_drv.c | 132 +++++++++++-- > drivers/gpu/drm/panfrost/panfrost_gem.c | 184 +++++++++++++++--- > drivers/gpu/drm/panfrost/panfrost_gem.h | 51 ++++- > .../gpu/drm/panfrost/panfrost_gem_shrinker.c | 6 +- > drivers/gpu/drm/panfrost/panfrost_job.c | 22 ++- > drivers/gpu/drm/panfrost/panfrost_job.h | 1 + > drivers/gpu/drm/panfrost/panfrost_mmu.c | 61 +++--- > drivers/gpu/drm/panfrost/panfrost_mmu.h | 6 +- > drivers/gpu/drm/panfrost/panfrost_perfcnt.c | 49 +++-- > drivers/gpu/drm/panfrost/panfrost_perfcnt.h | 2 +- > 10 files changed, 416 insertions(+), 98 deletions(-) > > -- > 2.23.0 >
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