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| author | Alexey Skidanov <alexey.skidanov@gmail.com> | 2015-04-14 18:05:49 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2015-05-19 13:02:27 +0300 |
| commit | 59d3e8be87a14c6a0d91c683e63d9b31734525ae (patch) | |
| tree | 1f23bcca62cdfcec10055b83463d51129ec0d590 /drivers/gpu/drm/amd/amdkfd/kfd_priv.h | |
| parent | f3a398183f7b9ef78f6b71ee9f7641e046403bcb (diff) | |
| download | linux-59d3e8be87a14c6a0d91c683e63d9b31734525ae.tar.xz | |
drm/amdkfd: Add memory exception handling
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_priv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 0ff9a3daf385..35945032fff9 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -693,11 +693,14 @@ void kfd_event_init_process(struct kfd_process *p); void kfd_event_free_process(struct kfd_process *p); int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); int kfd_wait_on_events(struct kfd_process *p, - uint32_t num_events, const uint32_t __user *event_ids, + uint32_t num_events, void __user *data, bool all, uint32_t user_timeout_ms, enum kfd_event_wait_result *wait_result); void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id, uint32_t valid_id_bits); +void kfd_signal_iommu_event(struct kfd_dev *dev, + unsigned int pasid, unsigned long address, + bool is_write_requested, bool is_execute_requested); int kfd_set_event(struct kfd_process *p, uint32_t event_id); int kfd_reset_event(struct kfd_process *p, uint32_t event_id); int kfd_event_create(struct file *devkfd, struct kfd_process *p, |