Hi,I looked through the series. Most of the patches should have an r-b or a-b at this point. I can't say much about patch 2 and had questions about others.
Maybe you can already land patches 2, and 4 to 6? They look independent from the shrinker changes. You could also attempt to land the locking changes in patch 7. They need to get testing. I'll send you an a-b for the patch.
Best regards Thomas Am 08.01.23 um 22:04 schrieb Dmitry Osipenko:
This series:
1. Makes minor fixes for drm_gem_lru and Panfrost
2. Brings refactoring for older code
3. Adds common drm-shmem memory shrinker
4. Enables shrinker for VirtIO-GPU driver
5. Switches Panfrost driver to the common shrinker
Changelog:
v10:- Rebased on a recent linux-next.
- Added Rob's ack to MSM "Prevent blocking within shrinker loop" patch.
- Added Steven's ack/r-b/t-b for the Panfrost patches.
- Fixed missing export of the new drm_gem_object_evict() function.
- Added fixes tags to the first two patches that are making minor fixes,
for consistency.
v9: - Replaced struct drm_gem_shmem_shrinker with drm_gem_shmem and
moved it to drm_device, like was suggested by Thomas Zimmermann.
- Replaced drm_gem_shmem_shrinker_register() with drmm_gem_shmem_init(),
like was suggested by Thomas Zimmermann.
- Moved evict() callback to drm_gem_object_funcs and added common
drm_gem_object_evict() helper, like was suggested by Thomas Zimmermann.
- The shmem object now is evictable by default, like was suggested by
Thomas Zimmermann. Dropped the set_evictable/purgeble() functions
as well, drivers will decide whether BO is evictable within theirs
madvise IOCTL.
- Added patches that convert drm-shmem code to use drm_WARN_ON() and
drm_dbg_kms(), like was requested by Thomas Zimmermann.
- Turned drm_gem_shmem_object booleans into 1-bit bit fields, like was
suggested by Thomas Zimmermann.
- Switched to use drm_dev->unique for the shmem shrinker name. Drivers
don't need to specify the name explicitly anymore.
- Re-added dma_resv_test_signaled() that was missing in v8 and also
fixed its argument to DMA_RESV_USAGE_READ. See comment to
dma_resv_usage_rw().
- Added new fix for Panfrost driver that silences lockdep warning
caused by shrinker. Both Panfrost old and new shmem shrinkers are
affected.
v8: - Rebased on top of recent linux-next that now has dma-buf locking
convention patches merged, which was blocking shmem shrinker before.
- Shmem shrinker now uses new drm_gem_lru helper.
- Dropped Steven Price t-b from the Panfrost patch because code
changed significantly since v6 and should be re-tested.
v7: - dma-buf locking convention
v6: https://lore.kernel.org/dri-devel/20220526235040.678984-1-dmitry.osipenko@xxxxxxxxxxxxx/
Related patches:
Mesa: https://gitlab.freedesktop.org/digetx/mesa/-/commits/virgl-madvise
igt: https://gitlab.freedesktop.org/digetx/igt-gpu-tools/-/commits/virtio-madvise
https://gitlab.freedesktop.org/digetx/igt-gpu-tools/-/commits/panfrost-madvise
The Mesa and IGT patches will be sent out once the kernel part will land.
Dmitry Osipenko (11):
drm/msm/gem: Prevent blocking within shrinker loop
drm/panfrost: Don't sync rpm suspension after mmu flushing
drm/gem: Add evict() callback to drm_gem_object_funcs
drm/shmem: Put booleans in the end of struct drm_gem_shmem_object
drm/shmem: Switch to use drm_* debug helpers
drm/shmem-helper: Don't use vmap_use_count for dma-bufs
drm/shmem-helper: Switch to reservation lock
drm/shmem-helper: Add memory shrinker
drm/gem: Add drm_gem_pin_unlocked()
drm/virtio: Support memory shrinking
drm/panfrost: Switch to generic memory shrinker
drivers/gpu/drm/drm_gem.c | 54 +-
drivers/gpu/drm/drm_gem_shmem_helper.c | 646 +++++++++++++-----
drivers/gpu/drm/lima/lima_gem.c | 8 +-
drivers/gpu/drm/msm/msm_gem_shrinker.c | 8 +-
drivers/gpu/drm/panfrost/Makefile | 1 -
drivers/gpu/drm/panfrost/panfrost_device.h | 4 -
drivers/gpu/drm/panfrost/panfrost_drv.c | 34 +-
drivers/gpu/drm/panfrost/panfrost_gem.c | 30 +-
drivers/gpu/drm/panfrost/panfrost_gem.h | 9 -
.../gpu/drm/panfrost/panfrost_gem_shrinker.c | 122 ----
drivers/gpu/drm/panfrost/panfrost_job.c | 18 +-
drivers/gpu/drm/panfrost/panfrost_mmu.c | 21 +-
drivers/gpu/drm/virtio/virtgpu_drv.h | 18 +-
drivers/gpu/drm/virtio/virtgpu_gem.c | 52 ++
drivers/gpu/drm/virtio/virtgpu_ioctl.c | 37 +
drivers/gpu/drm/virtio/virtgpu_kms.c | 8 +
drivers/gpu/drm/virtio/virtgpu_object.c | 132 +++-
drivers/gpu/drm/virtio/virtgpu_plane.c | 22 +-
drivers/gpu/drm/virtio/virtgpu_vq.c | 40 ++
include/drm/drm_device.h | 10 +-
include/drm/drm_gem.h | 19 +-
include/drm/drm_gem_shmem_helper.h | 112 +--
include/uapi/drm/virtgpu_drm.h | 14 +
23 files changed, 1010 insertions(+), 409 deletions(-)
delete mode 100644 drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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