[GIT PULL] etnaviv-fixes for 5.15

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Hi Dave, Daniel,

please pull those etnaviv changes as fixes for the 5.15 release
series. 

Fixes a very annoying issue where the driver view of the MMU state gets
out of sync with the actual hardware state across a runtime PM cycle,
so we end up restarting the GPU with the wrong (potentially already
freed) MMU context. Hilarity ensues.

Regards,
Lucas

The following changes since commit 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f:

  Linux 5.15-rc1 (2021-09-12 16:28:37 -0700)

are available in the Git repository at:

  https://git.pengutronix.de/git/lst/linux etnaviv/fixes

for you to fetch changes up to f2faea8b64125852fa9acc6771c07fc0311a039b:

  drm/etnaviv: add missing MMU context put when reaping MMU mapping (2021-09-16 10:35:37 +0200)

----------------------------------------------------------------
Lucas Stach (8):
      drm/etnaviv: return context from etnaviv_iommu_context_get
      drm/etnaviv: put submit prev MMU context when it exists
      drm/etnaviv: stop abusing mmu_context as FE running marker
      drm/etnaviv: keep MMU context across runtime suspend/resume
      drm/etnaviv: exec and MMU state is lost when resetting the GPU
      drm/etnaviv: fix MMU context leak on GPU reset
      drm/etnaviv: reference MMU context when setting up hardware state
      drm/etnaviv: add missing MMU context put when reaping MMU mapping

 drivers/gpu/drm/etnaviv/etnaviv_buffer.c     |  3 +--
 drivers/gpu/drm/etnaviv/etnaviv_gem.c        |  3 +--
 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c |  3 +--
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c        | 43 +++++++++++++++++++++++++------------------
 drivers/gpu/drm/etnaviv/etnaviv_gpu.h        |  1 +
 drivers/gpu/drm/etnaviv/etnaviv_iommu.c      |  4 ++++
 drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c   |  8 ++++++++
 drivers/gpu/drm/etnaviv/etnaviv_mmu.c        |  1 +
 drivers/gpu/drm/etnaviv/etnaviv_mmu.h        |  4 +++-
 9 files changed, 45 insertions(+), 25 deletions(-)





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