drm/radeon: use common fence implementation for fences, v4

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Changes since v1:
- Kill the sw interrupt dance, add and use
  radeon_irq_kms_sw_irq_get_delayed instead.
- Change custom wait function, lockdep complained about it.
  Holding exclusive_lock in the wait function might cause deadlocks.
  Instead do all the processing in .enable_signaling, and wait
  on the global fence_queue to pick up gpu resets.
- Process all fences in radeon_gpu_reset after reset to close a race
  with the trylock in enable_signaling.
Changes since v2:
- Small changes to work with the rewritten lockup recovery patches.
Changes since v3:
- Call radeon_fence_schedule_check when exclusive_lock cannot be
  acquired to always cause a wake up.
- Reset irqs from hangup check.
- Drop reading seqno in the callback, use cached value.
- Fix indentation in radeon_fence_default_wait
- Add a radeon_test_signaled function, drop a few test_bit calls.
- Make to_radeon_fence global.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

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This commit is contained in:

Maarten Lankhorst 2014-01-09 11:03:12 +01:00

parent 1f0dc9a59a

commit 954605ca3f

4 changed files with 235 additions and 29 deletions

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23

drivers/gpu/drm/radeon/radeon.h

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1

drivers/gpu/drm/radeon/radeon_device.c

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225

drivers/gpu/drm/radeon/radeon_fence.c

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15

drivers/gpu/drm/radeon/radeon_irq_kms.c

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