diff options
| author | Jonathan Kim <jonathan.kim@amd.com> | 2022-03-02 14:30:12 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 12:34:41 -0400 |
| commit | 4f98cf2baf9faee5b6f2f7889dad7c0f7686a787 (patch) | |
| tree | 0586bcce3c8cbec7546455acf594c0c12c774361 /drivers | |
| parent | ba3c87fffb79311f54464288c66421d19c2c1234 (diff) | |
drm/amdkfd: add debug and runtime enable interface
Introduce the GPU debug operations interface.
For ROCm-GDB to extend the GNU Debugger's ability to inspect the AMD GPU
instruction set, provide the necessary interface to allow the debugger
to HW debug-mode set and query exceptions per HSA queue, process or
device.
The runtime_enable interface coordinates exception handling with the
HSA runtime.
Usage is available in the kern docs at uapi/linux/kfd_ioctl.h.
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index a9efff94390b..00e34125987c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -2729,6 +2729,48 @@ static int kfd_ioctl_criu(struct file *filep, struct kfd_process *p, void *data) return ret; } +static int kfd_ioctl_runtime_enable(struct file *filep, struct kfd_process *p, void *data) +{ + return 0; +} + +static int kfd_ioctl_set_debug_trap(struct file *filep, struct kfd_process *p, void *data) +{ + struct kfd_ioctl_dbg_trap_args *args = data; + int r = 0; + + if (sched_policy == KFD_SCHED_POLICY_NO_HWS) { + pr_err("Debugging does not support sched_policy %i", sched_policy); + return -EINVAL; + } + + switch (args->op) { + case KFD_IOC_DBG_TRAP_ENABLE: + case KFD_IOC_DBG_TRAP_DISABLE: + case KFD_IOC_DBG_TRAP_SEND_RUNTIME_EVENT: + case KFD_IOC_DBG_TRAP_SET_EXCEPTIONS_ENABLED: + case KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_OVERRIDE: + case KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_MODE: + case KFD_IOC_DBG_TRAP_SUSPEND_QUEUES: + case KFD_IOC_DBG_TRAP_RESUME_QUEUES: + case KFD_IOC_DBG_TRAP_SET_NODE_ADDRESS_WATCH: + case KFD_IOC_DBG_TRAP_CLEAR_NODE_ADDRESS_WATCH: + case KFD_IOC_DBG_TRAP_SET_FLAGS: + case KFD_IOC_DBG_TRAP_QUERY_DEBUG_EVENT: + case KFD_IOC_DBG_TRAP_QUERY_EXCEPTION_INFO: + case KFD_IOC_DBG_TRAP_GET_QUEUE_SNAPSHOT: + case KFD_IOC_DBG_TRAP_GET_DEVICE_SNAPSHOT: + pr_warn("Debugging not supported yet\n"); + r = -EACCES; + break; + default: + pr_err("Invalid option: %i\n", args->op); + r = -EINVAL; + } + + return r; +} + #define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \ [_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, \ .cmd_drv = 0, .name = #ioctl} @@ -2841,6 +2883,12 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = { AMDKFD_IOCTL_DEF(AMDKFD_IOC_EXPORT_DMABUF, kfd_ioctl_export_dmabuf, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_RUNTIME_ENABLE, + kfd_ioctl_runtime_enable, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_DBG_TRAP, + kfd_ioctl_set_debug_trap, 0), }; #define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls) |