diff options
| author | Christian König <christian.koenig@amd.com> | 2022-03-17 09:53:55 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-25 12:40:51 -0400 |
| commit | bffa91dadf599155200b3efb46217ec108078a30 (patch) | |
| tree | f899e2af9c50cafa49856c99d386c7fd6356a9f7 /drivers/gpu/drm/amd/amdkfd | |
| parent | 5255e146c99a677d4d55fdb988544bd20c539a0b (diff) | |
| download | linux-bffa91dadf599155200b3efb46217ec108078a30.tar.bz2 | |
drm/amdkfd: start using tlb_seq from the VM subsystem
Instead of trying to figure out if a TLB flush is necessary or not use
the information provided by the VM subsystem now.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f36062be9ca8..945982a5d688 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -705,6 +705,7 @@ struct kfd_process_device { /* VM context for GPUVM allocations */ struct file *drm_file; void *drm_priv; + uint64_t tlb_seq; /* GPUVM allocations storage */ struct idr alloc_idr; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 59c04b2d383b..4a8a047b7593 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1560,6 +1560,7 @@ int kfd_process_device_init_vm(struct kfd_process_device *pdd, return ret; } pdd->drm_priv = drm_file->private_data; + pdd->tlb_seq = 0; ret = kfd_process_device_reserve_ib_mem(pdd); if (ret) @@ -1949,8 +1950,14 @@ int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, void kfd_flush_tlb(struct kfd_process_device *pdd, enum TLB_FLUSH_TYPE type) { + struct amdgpu_vm *vm = drm_priv_to_vm(pdd->drm_priv); + uint64_t tlb_seq = amdgpu_vm_tlb_seq(vm); struct kfd_dev *dev = pdd->dev; + if (pdd->tlb_seq == tlb_seq) + return; + + pdd->tlb_seq = tlb_seq; if (dev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) { /* Nothing to flush until a VMID is assigned, which * only happens when the first queue is created. |