linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h, branch v5.8 Linux kernel source tree drm/amdgpu: fix race between pstate and remote buffer map 2020-04-22T22:11:46+00:00 Jonathan Kim jonathan.kim@amd.com 2020-03-17T19:43:41+00:00 d84a430d9f7b1ce6baedf1305106d0ae706aca76 Vega20 arbitrates pstate at hive level and not device level. Last peer to remote buffer unmap could drop P-State while another process is still remote buffer mapped. With this fix, P-States still needs to be disabled for now as SMU bug was discovered on synchronous P2P transfers. This should be fixed in the next FW update. Signed-off-by: Jonathan Kim <Jonathan.Kim@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Vega20 arbitrates pstate at hive level and not device level. Last peer to
remote buffer unmap could drop P-State while another process is still
remote buffer mapped.

With this fix, P-States still needs to be disabled for now as SMU bug
was discovered on synchronous P2P transfers.  This should be fixed in the
next FW update.

Signed-off-by: Jonathan Kim <Jonathan.Kim@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: added xgmi ras error reset sequence 2020-04-01T18:44:42+00:00 John Clements john.clements@amd.com 2020-03-25T07:56:31+00:00 66399248feaf4a2fa4cd76765412a4139aca28e9 added mechanism to clear xgmi ras status inbetween error queries Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: John Clements <john.clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
added mechanism to clear xgmi ras status inbetween error queries

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: add helper funcs to detect PCS error 2020-03-06T19:31:28+00:00 Hawking Zhang Hawking.Zhang@amd.com 2020-02-21T13:43:44+00:00 18f36157f2cbb1cfc7d67642c40deddbcece0553 Since from vega20, hardware supports run-time detect and report XGMI/WAFL PCS ras error. Add helper functions to walkthrough every type of ras error and report it if any. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Since from vega20, hardware supports run-time detect
and report XGMI/WAFL PCS ras error. Add helper functions
to walkthrough every type of ras error and report it if
any.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: move get_xgmi_relative_phy_addr to amdgpu_xgmi.c 2020-02-26T19:17:32+00:00 Hawking Zhang Hawking.Zhang@amd.com 2020-02-24T07:36:13+00:00 19744f5f2dff50290f0767a68c0dc418c1a59cec centralize all the xgmi related function to amdgpu_xgmi.c Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Acked-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
centralize all the xgmi related function to amdgpu_xgmi.c

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: move xgmi init/fini to xgmi_add/remove_device call (v2) 2020-02-06T20:04:36+00:00 Hawking Zhang Hawking.Zhang@amd.com 2019-12-23T08:51:42+00:00 0b9d37609a7b247bb70b15d28138e3e77b300c2a For sriov, psp ip block has to be initialized before ih block for the dynamic register programming interface that needed for vf ih ring buffer. On the other hand, current psp ip block hw_init function will initialize xgmi session which actaully depends on interrupt to return session context. This results an empty xgmi ta session id and later failures on all the xgmi ta cmd invoked from vf. xgmi ta session initialization has to be done after ih ip block hw_init call. to unify xgmi session init/fini for both bare-metal sriov virtualization use scenario, move xgmi ta init to xgmi_add_device call, and accordingly terminate xgmi ta session in xgmi_remove_device call. The existing suspend/resume sequence will not be changed. v2: squash in return fix from Nirmoy Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Frank Min <Frank.Min@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
For sriov, psp ip block has to be initialized before
ih block for the dynamic register programming interface
that needed for vf ih ring buffer. On the other hand,
current psp ip block hw_init function will initialize
xgmi session which actaully depends on interrupt to
return session context. This results an empty xgmi ta
session id and later failures on all the xgmi ta cmd
invoked from vf. xgmi ta session initialization has to
be done after ih ip block hw_init call.

to unify xgmi session init/fini for both bare-metal
sriov virtualization use scenario, move xgmi ta init
to xgmi_add_device call, and accordingly terminate xgmi
ta session in xgmi_remove_device call.

The existing suspend/resume sequence will not be changed.

v2: squash in return fix from Nirmoy

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Frank Min <Frank.Min@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Add task barrier to XGMI hive. 2019-12-18T21:09:13+00:00 Andrey Grodzovsky andrey.grodzovsky@amd.com 2019-12-06T17:43:30+00:00 f33a8770cdda79031a22241eaaac4eaf66e304fb Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Le Ma <Le.Ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: move xgmi ras fini to xgmi block 2019-10-03T14:11:02+00:00 Tao Zhou tao.zhou1@amd.com 2019-09-18T09:58:14+00:00 be5b39d87a880b96038d1686ccedff940f6b124f it's more suitable to put xgmi ras fini in xgmi block Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Guchun Chen <guchun.chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
it's more suitable to put xgmi ras fini in xgmi block

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: initialize ras structures for xgmi block (v2) 2019-09-16T15:08:51+00:00 Hawking Zhang Hawking.Zhang@amd.com 2019-09-10T03:13:39+00:00 029fbd437eb6a8cd20d983bdbf0037a9417ef2ee init ras common interface and fs node for xgmi block v2: remove unnecessary physical node number check before invoking amdgpu_xgmi_ras_late_init Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Guchun Chen <guchun.chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
init ras common interface and fs node for xgmi block

v2: remove unnecessary physical node number check before
invoking amdgpu_xgmi_ras_late_init

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Implement get num of hops between two xgmi device 2019-05-24T17:20:48+00:00 shaoyunl shaoyun.liu@amd.com 2019-04-17T18:28:18+00:00 da361dd13f4fb766445f55bbd2eec36c73a9b1bb KFD need to provide the info for upper level to determine the data path Signed-off-by: shaoyunl <shaoyun.liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
KFD need to provide the info for upper level to determine the data path

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: XGMI pstate switch initial support 2019-03-28T03:40:43+00:00 shaoyunl shaoyun.liu@amd.com 2019-03-20T20:14:56+00:00 df399b064118bf9a5b9a3faaa67feb1cbb34e9d4 Driver vote low to high pstate switch whenever there is an outstanding XGMI mapping request. Driver vote high to low pstate when all the outstanding XGMI mapping is terminated. Signed-off-by: shaoyunl <shaoyun.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Driver vote low to high pstate switch whenever there is an outstanding
XGMI mapping request. Driver vote high to low pstate when all the
outstanding XGMI mapping is terminated.

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>