drm/amdkfd: Add memory exception handling

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This patch adds Peripheral Page Request (PPR) failure processing
and reporting.

Bad address or pointer to a system memory block with inappropriate
read/write permission cause such PPR failure during a user queue
processing. PPR request handling is done by IOMMU driver notifying
AMDKFD module on PPR failure.

The process triggering a PPR failure will be notified by
appropriate event or SIGTERM signal will be sent to it.

v3:
- Change all bool fields in struct kfd_memory_exception_failure to
  uint32_t

Signed-off-by: Alexey Skidanov <alexey.skidanov@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

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This commit is contained in:

Alexey Skidanov 2015-04-14 18:05:49 +03:00 • committed by Oded Gabbay

parent f3a398183f

commit 59d3e8be87

4 changed files with 187 additions and 9 deletions

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29

drivers/gpu/drm/amd/amdkfd/kfd_device.c

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155

drivers/gpu/drm/amd/amdkfd/kfd_events.c

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7

drivers/gpu/drm/amd/amdkfd/kfd_events.h

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5

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

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