linux-stable.git/drivers/gpu/drm/amd/amdkfd/kfd_process.c, branch linux-4.2.y

drm/amdkfd: validate pdd where it acquired first

2015-07-09T10:27:52+00:00

Currently pdd is validate after dereferencing it, which is
not correct, Thus validate pdd before its first use.

Signed-off-by: Maninder Singh 
Signed-off-by: Oded Gabbay

drm/amdkfd: make reset wavefronts per process per device

2015-06-06T19:26:39+00:00

This commit moves the reset wavefront flag to per process per device
data structure, so we can support multiple devices.

Signed-off-by: Ben Goz 
Signed-off-by: Oded Gabbay

drm/amdkfd: Enforce kill all waves on process termination

2015-06-03T08:34:47+00:00

This commit makes sure that on process termination, after
we're destroying all the active queues, we're killing all the
existing wave front of the current process.

By doing this we're making sure that if any of the CUs were blocked
by infinite loop we're enforcing it to end the shader explicitly.

Signed-off-by: Ben Goz 
Signed-off-by: Oded Gabbay

drm/amdkfd: Add the events module

2015-05-19T10:02:26+00:00

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: Andrew Lewycky 
Signed-off-by: Oded Gabbay

drm/amdkfd: Remove unessary void pointer cast

2015-05-19T09:13:38+00:00

kmalloc() returns a void pointer - no need to cast it in
drivers/gpu/drm/amd/amdkfd/kfd_process.c::kfd_process_destroy_delayed()

Signed-off-by: Firo Yang 
Signed-off-by: Oded Gabbay

drm/amdkfd: add debug prints for process teardown

2015-03-25T12:02:05+00:00

Signed-off-by: Oded Gabbay 
Reviewed-by: Alex Deucher

drm/amdkfd: Process-device data creation and lookup split

2015-01-09T20:25:58+00:00

This patch splits the current kfd_get_process_device_data() to two
functions, one that specifically creates a pdd and another one which
just do lookup.

This is done to enhance the readability and maintainability of the code.

Signed-off-by: Alexey Skidanov 
Signed-off-by: Oded Gabbay

amdkfd: init aperture once per process

2014-11-18T11:56:23+00:00

Since the user space may call open() more that once from the same process,
the aperture initialization should be moved from kfd_open()

Signed-off-by: Alexey Skidanov 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

amdkfd: use atomic allocations within srcu callbacks

2014-12-03T15:19:36+00:00

srcu callbacks are running in atomic context, we can't allocate using
__GFP_WAIT.

Signed-off-by: Sasha Levin 
Signed-off-by: Oded Gabbay

amdkfd: delete some dead code

2014-11-25T16:43:29+00:00

This is dead code.  We don't need to unbind here, we can just return
directly.

Reviewed-by: Oded Gabbay 
Signed-off-by: Dan Carpenter 
Signed-off-by: Oded Gabbay