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  1. 20 5月, 2015 31 次提交
  3. 19 5月, 2015 9 次提交
    • O
      drm/amdkfd: change driver version to 0.7.2 · 7591cd2c
      由 Oded Gabbay 提交于 
      Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      7591cd2c
    • A
      drm/amdkfd: Implement events IOCTLs · 8377396b
      由 Andrew Lewycky 提交于 
      Signed-off-by: NAndrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      8377396b
    • O
      drm/amdkfd: Add module parameter of send_sigterm · 81663016
      由 Oded Gabbay 提交于 
      This patch adds a new kernel module parameter to amdkfd,
called send_sigterm.

This parameter specifies whether amdkfd should send the
SIGTERM signal to an HSA process, when the following conditions
occur:

1. The GPU triggers an exception regarding a kernel that was
   issued by this process.

2. The HSA process isn't waiting on an event that handles
   this exception.

The default behavior is not to send a SIGTERM and suffice
with a dmesg error print.
Reviewed-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      81663016
    • A
      drm/amdkfd: Add bad opcode exception handling · 930c5ff4
      由 Alexey Skidanov 提交于 
      Signed-off-by: NAlexey Skidanov <alexey.skidanov@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      930c5ff4
    • A
      drm/amdkfd: Add memory exception handling · 59d3e8be
      由 Alexey Skidanov 提交于 
      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: NAlexey Skidanov <alexey.skidanov@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      59d3e8be
    • A
      drm/amdkfd: Add the events module · f3a39818
      由 Andrew Lewycky 提交于 
      This patch adds the events module (kfd_events.c) and the interrupt
handle module for Kaveri (cik_event_interrupt.c).

The patch updates the interrupt_is_wanted(), so that it now calls the
interrupt isr function specific for the device that received the
interrupt. That function(implemented in cik_event_interrupt.c)
returns whether this interrupt is of interest to us or not.

The patch also updates the interrupt_wq(), so that it now calls the
device's specific wq function, which checks the interrupt source
and tries to signal relevant events.

v2:

Increase limit of signal events to 4096 per process
Remove bitfields from struct cik_ih_ring_entry
Rename radeon_kfd_event_mmap to kfd_event_mmap
Add debug prints to allocate_free_slot and allocate_signal_page
Make allocate_event_notification_slot return a correct value
Add warning prints to create_signal_event
Remove error print from IOCTL path
Reformatted debug prints in kfd_event_mmap
Map correct size (as received from mmap) in kfd_event_mmap

v3:

Reduce limit of signal events back to 256 per process
Fix allocation of kernel memory for signal events
Signed-off-by: NAndrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      f3a39818
    • A
      drm/amdkfd: add events IOCTL set definitions · 29a5d3eb
      由 Andrew Lewycky 提交于 
      - AMDKFD_IOC_CREATE_EVENT:
	Creates a new event of a specified type

- AMDKFD_IOC_DESTROY_EVENT:
	Destroys an existing event

- AMDKFD_IOC_SET_EVENT:
	Signal an existing event

- AMDKFD_IOC_RESET_EVENT:
	Reset an existing event

- AMDKFD_IOC_WAIT_EVENTS:
	Wait on event(s) until they are signaled

v2:

- Move the limit of the signal events to kfd_ioctl.h so it
  can be used by userspace

v3:
- Change all bool fields in struct kfd_memory_exception_failure
to uint32_t
Signed-off-by: NAndrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      29a5d3eb
    • A
      drm/amdkfd: Add interrupt handling module · 2249d558
      由 Andrew Lewycky 提交于 
      This patch adds the interrupt handling module, kfd_interrupt.c, and its
related members in different data structures to the amdkfd driver.

The amdkfd interrupt module maintains an internal interrupt ring
per amdkfd device. The internal interrupt ring contains interrupts
that needs further handling. The extra handling is deferred to
a later time through a workqueue.

There's no acknowledgment for the interrupts we use. The hardware
simply queues a new interrupt each time without waiting.

The fixed-size internal queue means that it's possible for us to lose
interrupts because we have no back-pressure to the hardware.

However, only interrupts that are "wanted" by amdkfd, are copied into
the amdkfd s/w interrupt ring, in order to minimize the chances
for overflow of the ring.
Signed-off-by: NAndrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      2249d558
    • O
      drm/radeon: Add init interrupt kfd->kgd interface · d36b94fc
      由 Oded Gabbay 提交于 
      This patch adds a new interface function to the kfd->kgd interface.
The function is kgd_init_interrupts() and its function is to
initialize a pipe's interrupts.

The function currently enables the timestamp interrupt and the
bad opcode interrupt.
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
      d36b94fc