Wavefront context save data is of interest to userspace clients for debugging static wavefront state. The MQD contains two parameters required to parse the control stack and the control stack itself is kept in the MQD from gfx9 onwards. Add an ioctl to fetch the context save area and control stack offsets and to copy the control stack to a userspace address if it is kept in the MQD.
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| @@ -82,6 +82,14 @@ struct kfd_ioctl_set_cu_mask_args { · 81 unmodified lines | ||
| 82 | 82 | __u64 cu_mask_ptr; /* to KFD */ |
| 83 | 83 | }; |
| 84 | 84 | |
| 85 | +struct kfd_ioctl_get_queue_wave_state_args { | |
| 86 | + uint64_t ctl_stack_address; /* to KFD */ | |
| 87 | + uint32_t ctl_stack_used_size; /* from KFD */ | |
| 88 | + uint32_t save_area_used_size; /* from KFD */ | |
| 89 | + uint32_t queue_id; /* to KFD */ | |
| 90 | + uint32_t pad; | |
| 91 | +}; | |
| 92 | + | |
| 85 | 93 | /* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */ |
| 86 | 94 | #define KFD_IOC_CACHE_POLICY_COHERENT 0 |
| 87 | 95 | #define KFD_IOC_CACHE_POLICY_NONCOHERENT 1 |
| @@ -475,7 +483,10 @@ struct kfd_ioctl_unmap_memory_from_gpu_args { · 387 unmodified lines | ||
| 475 | 483 | #define AMDKFD_IOC_SET_CU_MASK \ |
| 476 | 484 | AMDKFD_IOW(0x1A, struct kfd_ioctl_set_cu_mask_args) |
| 477 | 485 | |
| 486 | +#define AMDKFD_IOC_GET_QUEUE_WAVE_STATE \ | |
| 487 | + AMDKFD_IOWR(0x1B, struct kfd_ioctl_get_queue_wave_state_args) | |
| 488 | + | |
| 478 | 489 | #define AMDKFD_COMMAND_START 0x01 |
| 479 | −#define AMDKFD_COMMAND_END 0x1B | |
| 490 | +#define AMDKFD_COMMAND_END 0x1C | |
| 480 | 491 | |
| 481 | 492 | #endif |