From: Rob Clark <robdclark@xxxxxxxxxxxx>
This doesn't remove *all* the struct_mutex, but it covers the worst
of it, ie. shrinker/madvise/free/retire. The submit path still uses
struct_mutex, but it still needs *something* serialize a portion of
the submit path, and lock_stat mostly just shows the lock contention
there being with other submits. And there are a few other bits of
struct_mutex usage in less critical paths (debugfs, etc). But this
seems like a reasonable step in the right direction.
v2: teach lockdep about shrinker locking patters (danvet) and
convert to obj->resv locking (danvet)
Rob Clark (22):
drm/msm/gem: Add obj->lock wrappers
drm/msm/gem: Rename internal get_iova_locked helper
drm/msm/gem: Move prototypes to msm_gem.h
drm/msm/gem: Add some _locked() helpers
drm/msm/gem: Move locking in shrinker path
drm/msm/submit: Move copy_from_user ahead of locking bos
drm/msm: Do rpm get sooner in the submit path
drm/msm/gem: Switch over to obj->resv for locking
drm/msm: Use correct drm_gem_object_put() in fail case
drm/msm: Drop chatty trace
drm/msm: Move update_fences()
drm/msm: Add priv->mm_lock to protect active/inactive lists
drm/msm: Document and rename preempt_lock
drm/msm: Protect ring->submits with it's own lock
drm/msm: Refcount submits
drm/msm: Remove obj->gpu
drm/msm: Drop struct_mutex from the retire path
drm/msm: Drop struct_mutex in free_object() path
drm/msm: remove msm_gem_free_work
drm/msm: drop struct_mutex in madvise path
drm/msm: Drop struct_mutex in shrinker path
drm/msm: Don't implicit-sync if only a single ring
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 4 +-
drivers/gpu/drm/msm/adreno/a5xx_preempt.c | 12 +-
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 4 +-
drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c | 1 +
drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 1 +
drivers/gpu/drm/msm/dsi/dsi_host.c | 1 +
drivers/gpu/drm/msm/msm_debugfs.c | 7 +
drivers/gpu/drm/msm/msm_drv.c | 21 +-
drivers/gpu/drm/msm/msm_drv.h | 73 ++-----
drivers/gpu/drm/msm/msm_fbdev.c | 1 +
drivers/gpu/drm/msm/msm_gem.c | 245 ++++++++++------------
drivers/gpu/drm/msm/msm_gem.h | 131 ++++++++++--
drivers/gpu/drm/msm/msm_gem_shrinker.c | 81 +++----
drivers/gpu/drm/msm/msm_gem_submit.c | 154 +++++++++-----
drivers/gpu/drm/msm/msm_gpu.c | 98 +++++----
drivers/gpu/drm/msm/msm_gpu.h | 5 +-
drivers/gpu/drm/msm/msm_ringbuffer.c | 3 +-
drivers/gpu/drm/msm/msm_ringbuffer.h | 13 +-
18 files changed, 459 insertions(+), 396 deletions(-)
--
2.26.2
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