base->next = bo->vm_bo;
bo->vm_bo = base;
- if (bo->tbo.resv != vm->root.base.bo->tbo.resv)
+ if (bo->tbo.base.resv != vm->root.base.bo->tbo.base.resv)
return;
vm->bulk_moveable = false;
for (bo_base = abo->vm_bo; bo_base; bo_base = bo_base->next) {
struct amdgpu_vm *vm = bo_base->vm;
- if (abo->tbo.resv == vm->root.base.bo->tbo.resv)
+ if (abo->tbo.base.resv == vm->root.base.bo->tbo.base.resv)
vm->bulk_moveable = false;
}
* @adev: amdgpu_device pointer
* @vm: VM to clear BO from
* @bo: BO to clear
+ * @direct: use a direct update
*
* Root PD needs to be reserved when calling this.
*
*/
static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
- struct amdgpu_bo *bo)
+ struct amdgpu_bo *bo,
+ bool direct)
{
struct ttm_operation_ctx ctx = { true, false };
unsigned level = adev->vm_manager.root_level;
memset(¶ms, 0, sizeof(params));
params.adev = adev;
params.vm = vm;
+ params.direct = direct;
r = vm->update_funcs->prepare(¶ms, AMDGPU_FENCE_OWNER_KFD, NULL);
if (r)
* @bp: resulting BO allocation parameters
*/
static void amdgpu_vm_bo_param(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- int level, struct amdgpu_bo_param *bp)
+ int level, bool direct,
+ struct amdgpu_bo_param *bp)
{
memset(bp, 0, sizeof(*bp));
else if (!vm->root.base.bo || vm->root.base.bo->shadow)
bp->flags |= AMDGPU_GEM_CREATE_SHADOW;
bp->type = ttm_bo_type_kernel;
+ bp->no_wait_gpu = direct;
if (vm->root.base.bo)
- bp->resv = vm->root.base.bo->tbo.resv;
+ bp->resv = vm->root.base.bo->tbo.base.resv;
}
/**
*/
static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
- struct amdgpu_vm_pt_cursor *cursor)
+ struct amdgpu_vm_pt_cursor *cursor,
+ bool direct)
{
struct amdgpu_vm_pt *entry = cursor->entry;
struct amdgpu_bo_param bp;
if (entry->base.bo)
return 0;
- amdgpu_vm_bo_param(adev, vm, cursor->level, &bp);
+ amdgpu_vm_bo_param(adev, vm, cursor->level, direct, &bp);
r = amdgpu_bo_create(adev, &bp, &pt);
if (r)
pt->parent = amdgpu_bo_ref(cursor->parent->base.bo);
amdgpu_vm_bo_base_init(&entry->base, vm, pt);
- r = amdgpu_vm_clear_bo(adev, vm, pt);
+ r = amdgpu_vm_clear_bo(adev, vm, pt, direct);
if (r)
goto error_free_pt;
id->oa_base != job->oa_base ||
id->oa_size != job->oa_size);
bool vm_flush_needed = job->vm_needs_flush;
- bool pasid_mapping_needed = id->pasid != job->pasid ||
- !id->pasid_mapping ||
- !dma_fence_is_signaled(id->pasid_mapping);
struct dma_fence *fence = NULL;
+ bool pasid_mapping_needed;
unsigned patch_offset = 0;
int r;
pasid_mapping_needed = true;
}
+ mutex_lock(&id_mgr->lock);
+ if (id->pasid != job->pasid || !id->pasid_mapping ||
+ !dma_fence_is_signaled(id->pasid_mapping))
+ pasid_mapping_needed = true;
+ mutex_unlock(&id_mgr->lock);
+
gds_switch_needed &= !!ring->funcs->emit_gds_switch;
vm_flush_needed &= !!ring->funcs->emit_vm_flush &&
job->vm_pd_addr != AMDGPU_BO_INVALID_OFFSET;
}
if (pasid_mapping_needed) {
+ mutex_lock(&id_mgr->lock);
id->pasid = job->pasid;
dma_fence_put(id->pasid_mapping);
id->pasid_mapping = dma_fence_get(fence);
+ mutex_unlock(&id_mgr->lock);
}
dma_fence_put(fence);
}
/*
- * amdgpu_vm_update_directories - make sure that all directories are valid
+ * amdgpu_vm_update_pdes - make sure that all directories are valid
*
* @adev: amdgpu_device pointer
* @vm: requested vm
+ * @direct: submit directly to the paging queue
*
* Makes sure all directories are up to date.
*
* Returns:
* 0 for success, error for failure.
*/
-int amdgpu_vm_update_directories(struct amdgpu_device *adev,
- struct amdgpu_vm *vm)
+int amdgpu_vm_update_pdes(struct amdgpu_device *adev,
+ struct amdgpu_vm *vm, bool direct)
{
struct amdgpu_vm_update_params params;
int r;
memset(¶ms, 0, sizeof(params));
params.adev = adev;
params.vm = vm;
+ params.direct = direct;
r = vm->update_funcs->prepare(¶ms, AMDGPU_FENCE_OWNER_VM, NULL);
if (r)
uint64_t incr, entry_end, pe_start;
struct amdgpu_bo *pt;
- r = amdgpu_vm_alloc_pts(params->adev, params->vm, &cursor);
+ r = amdgpu_vm_alloc_pts(params->adev, params->vm, &cursor,
+ params->direct);
if (r)
return r;
* amdgpu_vm_bo_update_mapping - update a mapping in the vm page table
*
* @adev: amdgpu_device pointer
- * @exclusive: fence we need to sync to
- * @pages_addr: DMA addresses to use for mapping
* @vm: requested vm
+ * @direct: direct submission in a page fault
+ * @exclusive: fence we need to sync to
* @start: start of mapped range
* @last: last mapped entry
* @flags: flags for the entries
* @addr: addr to set the area to
+ * @pages_addr: DMA addresses to use for mapping
* @fence: optional resulting fence
*
* Fill in the page table entries between @start and @last.
* 0 for success, -EINVAL for failure.
*/
static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
+ struct amdgpu_vm *vm, bool direct,
struct dma_fence *exclusive,
- dma_addr_t *pages_addr,
- struct amdgpu_vm *vm,
uint64_t start, uint64_t last,
uint64_t flags, uint64_t addr,
+ dma_addr_t *pages_addr,
struct dma_fence **fence)
{
struct amdgpu_vm_update_params params;
memset(¶ms, 0, sizeof(params));
params.adev = adev;
params.vm = vm;
+ params.direct = direct;
params.pages_addr = pages_addr;
/* sync to everything except eviction fences on unmapping */
if (!(mapping->flags & AMDGPU_PTE_WRITEABLE))
flags &= ~AMDGPU_PTE_WRITEABLE;
- flags &= ~AMDGPU_PTE_EXECUTABLE;
- flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE;
-
- if (adev->asic_type == CHIP_NAVI10) {
- flags &= ~AMDGPU_PTE_MTYPE_NV10_MASK;
- flags |= (mapping->flags & AMDGPU_PTE_MTYPE_NV10_MASK);
- } else {
- flags &= ~AMDGPU_PTE_MTYPE_VG10_MASK;
- flags |= (mapping->flags & AMDGPU_PTE_MTYPE_VG10_MASK);
- }
-
- if ((mapping->flags & AMDGPU_PTE_PRT) &&
- (adev->asic_type >= CHIP_VEGA10)) {
- flags |= AMDGPU_PTE_PRT;
- if (adev->asic_type >= CHIP_NAVI10) {
- flags |= AMDGPU_PTE_SNOOPED;
- flags |= AMDGPU_PTE_LOG;
- flags |= AMDGPU_PTE_SYSTEM;
- }
- flags &= ~AMDGPU_PTE_VALID;
- }
+ /* Apply ASIC specific mapping flags */
+ amdgpu_gmc_get_vm_pte(adev, mapping, &flags);
trace_amdgpu_vm_bo_update(mapping);
}
last = min((uint64_t)mapping->last, start + max_entries - 1);
- r = amdgpu_vm_bo_update_mapping(adev, exclusive, dma_addr, vm,
+ r = amdgpu_vm_bo_update_mapping(adev, vm, false, exclusive,
start, last, flags, addr,
- fence);
+ dma_addr, fence);
if (r)
return r;
ttm = container_of(bo->tbo.ttm, struct ttm_dma_tt, ttm);
pages_addr = ttm->dma_address;
}
- exclusive = reservation_object_get_excl(bo->tbo.resv);
+ exclusive = bo->tbo.moving;
}
if (bo) {
flags = 0x0;
}
- if (clear || (bo && bo->tbo.resv == vm->root.base.bo->tbo.resv))
+ if (clear || (bo && bo->tbo.base.resv == vm->root.base.bo->tbo.base.resv))
last_update = &vm->last_update;
else
last_update = &bo_va->last_pt_update;
* the evicted list so that it gets validated again on the
* next command submission.
*/
- if (bo && bo->tbo.resv == vm->root.base.bo->tbo.resv) {
+ if (bo && bo->tbo.base.resv == vm->root.base.bo->tbo.base.resv) {
uint32_t mem_type = bo->tbo.mem.mem_type;
if (!(bo->preferred_domains & amdgpu_mem_type_to_domain(mem_type)))
*/
static void amdgpu_vm_prt_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
{
- struct reservation_object *resv = vm->root.base.bo->tbo.resv;
+ struct dma_resv *resv = vm->root.base.bo->tbo.base.resv;
struct dma_fence *excl, **shared;
unsigned i, shared_count;
int r;
- r = reservation_object_get_fences_rcu(resv, &excl,
+ r = dma_resv_get_fences_rcu(resv, &excl,
&shared_count, &shared);
if (r) {
/* Not enough memory to grab the fence list, as last resort
* block for all the fences to complete.
*/
- reservation_object_wait_timeout_rcu(resv, true, false,
+ dma_resv_wait_timeout_rcu(resv, true, false,
MAX_SCHEDULE_TIMEOUT);
return;
}
mapping->start < AMDGPU_GMC_HOLE_START)
init_pte_value = AMDGPU_PTE_DEFAULT_ATC;
- r = amdgpu_vm_bo_update_mapping(adev, NULL, NULL, vm,
+ r = amdgpu_vm_bo_update_mapping(adev, vm, false, NULL,
mapping->start, mapping->last,
- init_pte_value, 0, &f);
+ init_pte_value, 0, NULL, &f);
amdgpu_vm_free_mapping(adev, vm, mapping, f);
if (r) {
dma_fence_put(f);
struct amdgpu_vm *vm)
{
struct amdgpu_bo_va *bo_va, *tmp;
- struct reservation_object *resv;
+ struct dma_resv *resv;
bool clear;
int r;
while (!list_empty(&vm->invalidated)) {
bo_va = list_first_entry(&vm->invalidated, struct amdgpu_bo_va,
base.vm_status);
- resv = bo_va->base.bo->tbo.resv;
+ resv = bo_va->base.bo->tbo.base.resv;
spin_unlock(&vm->invalidated_lock);
/* Try to reserve the BO to avoid clearing its ptes */
- if (!amdgpu_vm_debug && reservation_object_trylock(resv))
+ if (!amdgpu_vm_debug && dma_resv_trylock(resv))
clear = false;
/* Somebody else is using the BO right now */
else
return r;
if (!clear)
- reservation_object_unlock(resv);
+ dma_resv_unlock(resv);
spin_lock(&vm->invalidated_lock);
}
spin_unlock(&vm->invalidated_lock);
if (mapping->flags & AMDGPU_PTE_PRT)
amdgpu_vm_prt_get(adev);
- if (bo && bo->tbo.resv == vm->root.base.bo->tbo.resv &&
+ if (bo && bo->tbo.base.resv == vm->root.base.bo->tbo.base.resv &&
!bo_va->base.moved) {
list_move(&bo_va->base.vm_status, &vm->moved);
}
struct amdgpu_bo *bo;
bo = mapping->bo_va->base.bo;
- if (READ_ONCE(bo->tbo.resv->lock.ctx) != ticket)
+ if (dma_resv_locking_ctx(bo->tbo.base.resv) !=
+ ticket)
continue;
}
struct amdgpu_vm_bo_base **base;
if (bo) {
- if (bo->tbo.resv == vm->root.base.bo->tbo.resv)
+ if (bo->tbo.base.resv == vm->root.base.bo->tbo.base.resv)
vm->bulk_moveable = false;
for (base = &bo_va->base.bo->vm_bo; *base;
for (bo_base = bo->vm_bo; bo_base; bo_base = bo_base->next) {
struct amdgpu_vm *vm = bo_base->vm;
- if (evicted && bo->tbo.resv == vm->root.base.bo->tbo.resv) {
+ if (evicted && bo->tbo.base.resv == vm->root.base.bo->tbo.base.resv) {
amdgpu_vm_bo_evicted(bo_base);
continue;
}
if (bo->tbo.type == ttm_bo_type_kernel)
amdgpu_vm_bo_relocated(bo_base);
- else if (bo->tbo.resv == vm->root.base.bo->tbo.resv)
+ else if (bo->tbo.base.resv == vm->root.base.bo->tbo.base.resv)
amdgpu_vm_bo_moved(bo_base);
else
amdgpu_vm_bo_invalidated(bo_base);
*/
long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout)
{
- return reservation_object_wait_timeout_rcu(vm->root.base.bo->tbo.resv,
+ return dma_resv_wait_timeout_rcu(vm->root.base.bo->tbo.base.resv,
true, true, timeout);
}
spin_lock_init(&vm->invalidated_lock);
INIT_LIST_HEAD(&vm->freed);
- /* create scheduler entity for page table updates */
- r = drm_sched_entity_init(&vm->entity, adev->vm_manager.vm_pte_rqs,
+ /* create scheduler entities for page table updates */
+ r = drm_sched_entity_init(&vm->direct, adev->vm_manager.vm_pte_rqs,
adev->vm_manager.vm_pte_num_rqs, NULL);
if (r)
return r;
+ r = drm_sched_entity_init(&vm->delayed, adev->vm_manager.vm_pte_rqs,
+ adev->vm_manager.vm_pte_num_rqs, NULL);
+ if (r)
+ goto error_free_direct;
+
vm->pte_support_ats = false;
if (vm_context == AMDGPU_VM_CONTEXT_COMPUTE) {
vm->update_funcs = &amdgpu_vm_sdma_funcs;
vm->last_update = NULL;
- amdgpu_vm_bo_param(adev, vm, adev->vm_manager.root_level, &bp);
+ amdgpu_vm_bo_param(adev, vm, adev->vm_manager.root_level, false, &bp);
if (vm_context == AMDGPU_VM_CONTEXT_COMPUTE)
bp.flags &= ~AMDGPU_GEM_CREATE_SHADOW;
r = amdgpu_bo_create(adev, &bp, &root);
if (r)
- goto error_free_sched_entity;
+ goto error_free_delayed;
r = amdgpu_bo_reserve(root, true);
if (r)
goto error_free_root;
- r = reservation_object_reserve_shared(root->tbo.resv, 1);
+ r = dma_resv_reserve_shared(root->tbo.base.resv, 1);
if (r)
goto error_unreserve;
amdgpu_vm_bo_base_init(&vm->root.base, vm, root);
- r = amdgpu_vm_clear_bo(adev, vm, root);
+ r = amdgpu_vm_clear_bo(adev, vm, root, false);
if (r)
goto error_unreserve;
amdgpu_bo_unref(&vm->root.base.bo);
vm->root.base.bo = NULL;
-error_free_sched_entity:
- drm_sched_entity_destroy(&vm->entity);
+error_free_delayed:
+ drm_sched_entity_destroy(&vm->delayed);
+
+error_free_direct:
+ drm_sched_entity_destroy(&vm->direct);
return r;
}
*/
if (pte_support_ats != vm->pte_support_ats) {
vm->pte_support_ats = pte_support_ats;
- r = amdgpu_vm_clear_bo(adev, vm, vm->root.base.bo);
+ r = amdgpu_vm_clear_bo(adev, vm, vm->root.base.bo, false);
if (r)
goto free_idr;
}
WARN_ONCE((vm->use_cpu_for_update && !amdgpu_gmc_vram_full_visible(&adev->gmc)),
"CPU update of VM recommended only for large BAR system\n");
+ if (vm->use_cpu_for_update)
+ vm->update_funcs = &amdgpu_vm_cpu_funcs;
+ else
+ vm->update_funcs = &amdgpu_vm_sdma_funcs;
+ dma_fence_put(vm->last_update);
+ vm->last_update = NULL;
+
if (vm->pasid) {
unsigned long flags;
struct amdgpu_bo_va_mapping *mapping, *tmp;
bool prt_fini_needed = !!adev->gmc.gmc_funcs->set_prt;
struct amdgpu_bo *root;
- int i, r;
+ int i;
amdgpu_amdkfd_gpuvm_destroy_cb(adev, vm);
+ root = amdgpu_bo_ref(vm->root.base.bo);
+ amdgpu_bo_reserve(root, true);
if (vm->pasid) {
unsigned long flags;
spin_lock_irqsave(&adev->vm_manager.pasid_lock, flags);
idr_remove(&adev->vm_manager.pasid_idr, vm->pasid);
spin_unlock_irqrestore(&adev->vm_manager.pasid_lock, flags);
+ vm->pasid = 0;
}
- drm_sched_entity_destroy(&vm->entity);
+ amdgpu_vm_free_pts(adev, vm, NULL);
+ amdgpu_bo_unreserve(root);
+ amdgpu_bo_unref(&root);
+ WARN_ON(vm->root.base.bo);
+
+ drm_sched_entity_destroy(&vm->direct);
+ drm_sched_entity_destroy(&vm->delayed);
if (!RB_EMPTY_ROOT(&vm->va.rb_root)) {
dev_err(adev->dev, "still active bo inside vm\n");
amdgpu_vm_free_mapping(adev, vm, mapping, NULL);
}
- root = amdgpu_bo_ref(vm->root.base.bo);
- r = amdgpu_bo_reserve(root, true);
- if (r) {
- dev_err(adev->dev, "Leaking page tables because BO reservation failed\n");
- } else {
- amdgpu_vm_free_pts(adev, vm, NULL);
- amdgpu_bo_unreserve(root);
- }
- amdgpu_bo_unref(&root);
- WARN_ON(vm->root.base.bo);
dma_fence_put(vm->last_update);
for (i = 0; i < AMDGPU_MAX_VMHUBS; i++)
amdgpu_vmid_free_reserved(adev, vm, i);
switch (args->in.op) {
case AMDGPU_VM_OP_RESERVE_VMID:
/* current, we only have requirement to reserve vmid from gfxhub */
- r = amdgpu_vmid_alloc_reserved(adev, &fpriv->vm, AMDGPU_GFXHUB);
+ r = amdgpu_vmid_alloc_reserved(adev, &fpriv->vm, AMDGPU_GFXHUB_0);
if (r)
return r;
break;
case AMDGPU_VM_OP_UNRESERVE_VMID:
- amdgpu_vmid_free_reserved(adev, &fpriv->vm, AMDGPU_GFXHUB);
+ amdgpu_vmid_free_reserved(adev, &fpriv->vm, AMDGPU_GFXHUB_0);
break;
default:
return -EINVAL;
}
}
}
+
+/**
+ * amdgpu_vm_handle_fault - graceful handling of VM faults.
+ * @adev: amdgpu device pointer
+ * @pasid: PASID of the VM
+ * @addr: Address of the fault
+ *
+ * Try to gracefully handle a VM fault. Return true if the fault was handled and
+ * shouldn't be reported any more.
+ */
+bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, unsigned int pasid,
+ uint64_t addr)
+{
+ struct amdgpu_bo *root;
+ uint64_t value, flags;
+ struct amdgpu_vm *vm;
+ long r;
+
+ spin_lock(&adev->vm_manager.pasid_lock);
+ vm = idr_find(&adev->vm_manager.pasid_idr, pasid);
+ if (vm)
+ root = amdgpu_bo_ref(vm->root.base.bo);
+ else
+ root = NULL;
+ spin_unlock(&adev->vm_manager.pasid_lock);
+
+ if (!root)
+ return false;
+
+ r = amdgpu_bo_reserve(root, true);
+ if (r)
+ goto error_unref;
+
+ /* Double check that the VM still exists */
+ spin_lock(&adev->vm_manager.pasid_lock);
+ vm = idr_find(&adev->vm_manager.pasid_idr, pasid);
+ if (vm && vm->root.base.bo != root)
+ vm = NULL;
+ spin_unlock(&adev->vm_manager.pasid_lock);
+ if (!vm)
+ goto error_unlock;
+
+ addr /= AMDGPU_GPU_PAGE_SIZE;
+ flags = AMDGPU_PTE_VALID | AMDGPU_PTE_SNOOPED |
+ AMDGPU_PTE_SYSTEM;
+
+ if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_NEVER) {
+ /* Redirect the access to the dummy page */
+ value = adev->dummy_page_addr;
+ flags |= AMDGPU_PTE_EXECUTABLE | AMDGPU_PTE_READABLE |
+ AMDGPU_PTE_WRITEABLE;
+ } else {
+ /* Let the hw retry silently on the PTE */
+ value = 0;
+ }
+
+ r = amdgpu_vm_bo_update_mapping(adev, vm, true, NULL, addr, addr + 1,
+ flags, value, NULL, NULL);
+ if (r)
+ goto error_unlock;
+
+ r = amdgpu_vm_update_pdes(adev, vm, true);
+
+error_unlock:
+ amdgpu_bo_unreserve(root);
+ if (r < 0)
+ DRM_ERROR("Can't handle page fault (%ld)\n", r);
+
+error_unref:
+ amdgpu_bo_unref(&root);
+
+ return false;
+}
projects / linux.git / blobdiff