linux-stable.git/drivers/gpu/drm/amd/amdkfd, branch v4.9.86 Linux kernel stable tree drm/amdkfd: Fix SDMA oversubsription handling 2018-02-03T16:05:37+00:00 Felix Kuehling Felix.Kuehling@amd.com 2017-11-01T23:21:57+00:00 8275584082063726845b7ce2acd1b9d87cdee3fa [ Upstream commit 8c946b8988acec785bcf67088b6bd0747f36d2d3 ] SDMA only supports a fixed number of queues. HWS cannot handle oversubscription. Signed-off-by: shaoyun liu <shaoyun.liu@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 8c946b8988acec785bcf67088b6bd0747f36d2d3 ]

SDMA only supports a fixed number of queues. HWS cannot handle
oversubscription.

Signed-off-by: shaoyun liu <shaoyun.liu@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drm/amdkfd: Fix SDMA ring buffer size calculation 2018-02-03T16:05:37+00:00 shaoyunl Shaoyun.Liu@amd.com 2017-11-01T23:21:56+00:00 16980affa1b09fc536657ddb933902825ead1c38 [ Upstream commit d12fb13f23199faa7e536acec1db49068e5a067d ] ffs function return the position of the first bit set on 1 based. (bit zero returns 1). Signed-off-by: shaoyun liu <shaoyun.liu@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit d12fb13f23199faa7e536acec1db49068e5a067d ]

ffs function return the position of the first bit set on 1 based.
(bit zero returns 1).

Signed-off-by: shaoyun liu <shaoyun.liu@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drm/amdkfd: fix improper return value on error 2017-10-08T08:26:05+00:00 Pan Bian bianpan2016@163.com 2016-12-01T08:10:42+00:00 09831a9577669fa16f4369a934e88d8ff644cfe0 [ Upstream commit 8bf793883da213864efc50c274d2b38ec0ca58b2 ] In function kfd_wait_on_events(), when the call to copy_from_user() fails, the value of return variable ret is 0. 0 indicates success, which is inconsistent with the execution status. This patch fixes the bug by assigning "-EFAULT" to ret when copy_from_user() returns an unexpected value. Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 8bf793883da213864efc50c274d2b38ec0ca58b2 ]

In function kfd_wait_on_events(), when the call to copy_from_user()
fails, the value of return variable ret is 0. 0 indicates success, which
is inconsistent with the execution status. This patch fixes the bug by
assigning "-EFAULT" to ret when copy_from_user() returns an unexpected
value.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'v4.8-rc8' into drm-next 2016-09-28T02:08:49+00:00 Dave Airlie airlied@redhat.com 2016-09-28T02:08:49+00:00 ca09fb9f60b5f3ab2d57e761aaeea89a5147d784 Linux 4.8-rc8 There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge it now to avoid troubles. * tag 'v4.8-rc8': (1442 commits) Linux 4.8-rc8 fault_in_multipages_readable() throws set-but-unused error mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing radix tree: fix sibling entry handling in radix_tree_descend() radix tree test suite: Test radix_tree_replace_slot() for multiorder entries fix memory leaks in tracing_buffers_splice_read() tracing: Move mutex to protect against resetting of seq data MIPS: Fix delay slot emulation count in debugfs MIPS: SMP: Fix possibility of deadlock when bringing CPUs online mm: delete unnecessary and unsafe init_tlb_ubc() huge tmpfs: fix Committed_AS leak shmem: fix tmpfs to handle the huge= option properly blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx MIPS: Fix pre-r6 emulation FPU initialisation arm64: kgdb: handle read-only text / modules arm64: Call numa_store_cpu_info() earlier. locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text nvme-rdma: only clear queue flags after successful connect i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended perf/core: Limit matching exclusive events to one PMU ... 
Linux 4.8-rc8

There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge
it now to avoid troubles.

* tag 'v4.8-rc8': (1442 commits)
  Linux 4.8-rc8
  fault_in_multipages_readable() throws set-but-unused error
  mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing
  radix tree: fix sibling entry handling in radix_tree_descend()
  radix tree test suite: Test radix_tree_replace_slot() for multiorder entries
  fix memory leaks in tracing_buffers_splice_read()
  tracing: Move mutex to protect against resetting of seq data
  MIPS: Fix delay slot emulation count in debugfs
  MIPS: SMP: Fix possibility of deadlock when bringing CPUs online
  mm: delete unnecessary and unsafe init_tlb_ubc()
  huge tmpfs: fix Committed_AS leak
  shmem: fix tmpfs to handle the huge= option properly
  blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx
  MIPS: Fix pre-r6 emulation FPU initialisation
  arm64: kgdb: handle read-only text / modules
  arm64: Call numa_store_cpu_info() earlier.
  locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text
  nvme-rdma: only clear queue flags after successful connect
  i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended
  perf/core: Limit matching exclusive events to one PMU
  ...
drm/amdkfd: Pass 'struct queue_propertices' by reference 2016-09-19T17:58:35+00:00 Edward O'Callaghan funfunctor@folklore1984.net 2016-09-17T05:01:45+00:00 e88a614c403573e861f82c063d8aee25cf109f17 Allow init_queue() to take 'struct queue_properties' by reference. Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> 
Allow init_queue() to take 'struct queue_properties' by reference.

Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
drm/amdkfd: Unify multiple calls to pr_debug() into one 2016-09-19T17:58:35+00:00 Edward O'Callaghan funfunctor@folklore1984.net 2016-09-17T05:01:44+00:00 6f4d92a12786ffebcf508fd96c5d09487cb93b00 Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> 
Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
drm/amdkfd: Reuse function to find a process through pasid 2016-09-19T17:58:35+00:00 Edward O'Callaghan funfunctor@folklore1984.net 2016-09-17T05:01:42+00:00 ad16a469ffa1f1bbf8f31e110b4d68cee39757d2 The kfd_lookup_process_by_pasid() is just for that purpose, so use it instead of repeating the code. v2: return on the condition (p == NULL) instead of BUG_ON(!p). Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> 
The kfd_lookup_process_by_pasid() is just for that purpose,
so use it instead of repeating the code.

v2: return on the condition (p == NULL) instead of BUG_ON(!p).

Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
drm/amdkfd: Add some missing memset zero'ing in queue init func 2016-09-19T17:58:35+00:00 Edward O'Callaghan funfunctor@folklore1984.net 2016-09-17T05:01:41+00:00 78b13f7964d97be4329e6410423a66affd7a68ad Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> 
Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
drm/amdkfd: Tidy up kfd_generate_gpu_id() uint64_t bitshift unpack 2016-09-19T17:58:35+00:00 Edward O'Callaghan funfunctor@folklore1984.net 2016-09-17T05:01:40+00:00 585f0e6c53d68e127b3e7e30e4968364c7292ebb Dereference the one time and unpack the lower and upper 32bit portions with the proper kernel helper macros. Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> 
Dereference the one time and unpack the lower and upper 32bit
portions with the proper kernel helper macros.

Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
drm/amdkfd: print doorbell offset as a hex value 2016-08-09T07:02:02+00:00 Colin Ian King colin.king@canonical.com 2016-07-13T07:36:03+00:00 6dae61627d1004895bfcee81d24482ec64cbecc5 The doorbell offset is formatted with a 0x prefix to suggest it is a hexadecimal value, when in fact %d is being used and this is confusing. Use %X instead to match the proceeding 0x prefix. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> 
The doorbell offset is formatted with a 0x prefix to suggest it is
a hexadecimal value, when in fact %d is being used and this is confusing.
Use %X instead to match the proceeding 0x prefix.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>