diff options
| author | Jay Cornwall <jay.cornwall@amd.com> | 2021-03-01 18:34:39 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 12:36:10 -0400 |
| commit | 50cff45e274896235d371f16eab67a180e12a732 (patch) | |
| tree | f21b428ff9c7eef159383a5cd90f0b3ba4e5af57 | |
| parent | 455227c4642c5e1867213cea73a527e431779060 (diff) | |
drm/amdkfd: add debug trap enabled flag to tma
Trap handler behavior will differ when a debugger is attached.
Make the debug trap flag available in the trap handler TMA.
Update it when the debug trap ioctl is invoked.
Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_debug.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 15 |
3 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_debug.c b/drivers/gpu/drm/amd/amdkfd/kfd_debug.c index a19c21d04438..17e8e9edccbf 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_debug.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_debug.c @@ -256,6 +256,8 @@ void kfd_dbg_trap_deactivate(struct kfd_process *target, bool unwind, int unwind if (unwind && i == unwind_count) break; + kfd_process_set_trap_debug_flag(&pdd->qpd, false); + /* GFX off is already disabled by debug activate if not RLC restore supported. */ if (kfd_dbg_is_rlc_restore_supported(pdd->dev)) amdgpu_gfx_off_ctrl(pdd->dev->adev, false); @@ -351,6 +353,15 @@ int kfd_dbg_trap_activate(struct kfd_process *target) if (kfd_dbg_is_rlc_restore_supported(pdd->dev)) amdgpu_gfx_off_ctrl(pdd->dev->adev, true); + /* + * Setting the debug flag in the trap handler requires that the TMA has been + * allocated, which occurs during CWSR initialization. + * In the event that CWSR has not been initialized at this point, setting the + * flag will be called again during CWSR initialization if the target process + * is still debug enabled. + */ + kfd_process_set_trap_debug_flag(&pdd->qpd, true); + if (!pdd->dev->kfd->shared_resources.enable_mes) r = debug_refresh_runlist(pdd->dev->dqm); else diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 4b80f74b9de0..a02fb939614a 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -1157,6 +1157,8 @@ int kfd_init_apertures(struct kfd_process *process); void kfd_process_set_trap_handler(struct qcm_process_device *qpd, uint64_t tba_addr, uint64_t tma_addr); +void kfd_process_set_trap_debug_flag(struct qcm_process_device *qpd, + bool enabled); /* CWSR initialization */ int kfd_process_init_cwsr_apu(struct kfd_process *process, struct file *filep); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 5cbfcaf08c8f..3b7f219c9d06 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1309,6 +1309,8 @@ int kfd_process_init_cwsr_apu(struct kfd_process *p, struct file *filep) memcpy(qpd->cwsr_kaddr, dev->kfd->cwsr_isa, dev->kfd->cwsr_isa_size); + kfd_process_set_trap_debug_flag(qpd, p->debug_trap_enabled); + qpd->tma_addr = qpd->tba_addr + KFD_CWSR_TMA_OFFSET; pr_debug("set tba :0x%llx, tma:0x%llx, cwsr_kaddr:%p for pqm.\n", qpd->tba_addr, qpd->tma_addr, qpd->cwsr_kaddr); @@ -1345,6 +1347,9 @@ static int kfd_process_device_init_cwsr_dgpu(struct kfd_process_device *pdd) memcpy(qpd->cwsr_kaddr, dev->kfd->cwsr_isa, dev->kfd->cwsr_isa_size); + kfd_process_set_trap_debug_flag(&pdd->qpd, + pdd->process->debug_trap_enabled); + qpd->tma_addr = qpd->tba_addr + KFD_CWSR_TMA_OFFSET; pr_debug("set tba :0x%llx, tma:0x%llx, cwsr_kaddr:%p for pqm.\n", qpd->tba_addr, qpd->tma_addr, qpd->cwsr_kaddr); @@ -1431,6 +1436,16 @@ bool kfd_process_xnack_mode(struct kfd_process *p, bool supported) return true; } +void kfd_process_set_trap_debug_flag(struct qcm_process_device *qpd, + bool enabled) +{ + if (qpd->cwsr_kaddr) { + uint64_t *tma = + (uint64_t *)(qpd->cwsr_kaddr + KFD_CWSR_TMA_OFFSET); + tma[2] = enabled; + } +} + /* * On return the kfd_process is fully operational and will be freed when the * mm is released |