diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h new file mode 100644 index 000000000..86fbf5693 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h @@ -0,0 +1,78 @@ +/* + * Copyright 2016 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef __AMDGPU_XGMI_H__ +#define __AMDGPU_XGMI_H__ + +#include <drm/task_barrier.h> +#include "amdgpu_psp.h" +#include "amdgpu_ras.h" + +struct amdgpu_hive_info { + struct kobject kobj; + uint64_t hive_id; + struct list_head device_list; + struct list_head node; + atomic_t number_devices; + struct mutex hive_lock; + int hi_req_count; + struct amdgpu_device *hi_req_gpu; + struct task_barrier tb; + enum { + AMDGPU_XGMI_PSTATE_MIN, + AMDGPU_XGMI_PSTATE_MAX_VEGA20, + AMDGPU_XGMI_PSTATE_UNKNOWN + } pstate; + + struct amdgpu_reset_domain *reset_domain; + uint32_t device_remove_count; +}; + +struct amdgpu_pcs_ras_field { + const char *err_name; + uint32_t pcs_err_mask; + uint32_t pcs_err_shift; +}; + +extern struct amdgpu_xgmi_ras xgmi_ras; +struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev); +void amdgpu_put_xgmi_hive(struct amdgpu_hive_info *hive); +int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_device *adev); +int amdgpu_xgmi_add_device(struct amdgpu_device *adev); +int amdgpu_xgmi_remove_device(struct amdgpu_device *adev); +int amdgpu_xgmi_set_pstate(struct amdgpu_device *adev, int pstate); +int amdgpu_xgmi_get_hops_count(struct amdgpu_device *adev, + struct amdgpu_device *peer_adev); +int amdgpu_xgmi_get_num_links(struct amdgpu_device *adev, + struct amdgpu_device *peer_adev); +uint64_t amdgpu_xgmi_get_relative_phy_addr(struct amdgpu_device *adev, + uint64_t addr); +static inline bool amdgpu_xgmi_same_hive(struct amdgpu_device *adev, + struct amdgpu_device *bo_adev) +{ + return (amdgpu_use_xgmi_p2p && + adev != bo_adev && + adev->gmc.xgmi.hive_id && + adev->gmc.xgmi.hive_id == bo_adev->gmc.xgmi.hive_id); +} +int amdgpu_xgmi_ras_sw_init(struct amdgpu_device *adev); + +#endif |