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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h
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2019-03-27drm/amdgpu: XGMI pstate switch initial supportshaoyunl1-0/+10
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 <[email protected]> Reviewed-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-03-21drm/amdgpu: revert "XGMI pstate switch initial support"Christian König1-2/+0
This reverts commit 9b638f9751308ae3ae8f28e0c6e9decffd97f5f9. Adding this to the mapping is complete nonsense and the whole implementation looks racy. This patch wasn't thoughtfully reviewed and should be reverted for now. Signed-off-by: Christian König <[email protected]> Acked-by: Liu, Shaoyun <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-03-19drm/amdgpu: XGMI pstate switch initial supportshaoyunl1-0/+2
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 <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-03-19drm/amdgpu: Add sysfs entries for xgmi hive v2.Andrey Grodzovsky1-2/+4
For each device a file xgmi_device_id is created. On the first device a subdirectory named xgmi_hive_info is created, It contains a file named hive_id and symlinks named node 1-4 linking to each device in the hive. v2: Return error codes instead of '-1' and few misspellings. Signed-off-by: Andrey Grodzovsky <[email protected]> Reviewed-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-01-14drm/amd/amdgpu: add missing mutex lock to amdgpu_get_xgmi_hive() (v3)Tom St Denis1-2/+3
v2: Move locks around in other functions so that this function can stand on its own. Also only hold the hive specific lock for add/remove device instead of the driver global lock so you can't add/remove devices in parallel from one hive. v3: add reset_lock Acked-by: Shaoyun.liu < [email protected]> Signed-off-by: Tom St Denis <[email protected]> Reviewed-by: Andrey Grodzovsky <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2018-12-03drm/amdgpu: Handle xgmi device removal.Andrey Grodzovsky1-0/+1
XGMI hive has some resources allocted on device init which needs to be deallocated when the device is unregistered. v2: Remove creation of dedicated wq for XGMI hive reset. v3: Use the gmc.xgmi.supported flag Signed-off-by: Andrey Grodzovsky <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2018-11-28drm/amdgpu: Expose hive adev list and xgmi_mutexAndrey Grodzovsky1-5/+8
It's needed for device reset of entire hive. v3: Add per hive lock to allow avoiding duplicate resets triggered by multiple members of same hive. Expose amdgpu_hive_info instead of adding getter functions. Signed-off-by: Andrey Grodzovsky <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Acked-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2018-11-28drm/amdgpu: Refactor amdgpu_xgmi_add_deviceAndrey Grodzovsky1-0/+36
This is prep work for updating each PSP FW in hive after GPU reset. Split into build topology SW state and update each PSP FW in the hive. Save topology and count of XGMI devices for reuse. v2: Create seperate header for XGMI. Signed-off-by: Andrey Grodzovsky <[email protected]> Acked-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
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