[PATCH v4 4/6] drm/amdgpu: switch to amdgpu_bo_vm for vm code
Christian König
christian.koenig at amd.com
Fri May 28 14:06:28 UTC 2021
Am 28.05.21 um 12:56 schrieb Nirmoy Das:
> The subclass, amdgpu_bo_vm is intended for PT/PD BOs which are also
> shadowed, so switch to amdgpu_bo_vm BO for PT/PD BOs.
>
> v4: update amdgpu_vm_update_funcs to accept amdgpu_bo_vm.
> v3: simplify code.
> check also if shadow bo exist instead of checking bo only type.
> v2: squash three related patches.
>
> Signed-off-by: Nirmoy Das <nirmoy.das at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 123 ++++++++++++--------
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 5 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c | 14 +--
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 19 +--
> 4 files changed, 96 insertions(+), 65 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 6bc7566cc193..223c63342ecd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -652,15 +652,15 @@ void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
> spin_lock(&adev->mman.bdev.lru_lock);
> list_for_each_entry(bo_base, &vm->idle, vm_status) {
> struct amdgpu_bo *bo = bo_base->bo;
> + struct amdgpu_bo *shadow = amdgpu_bo_shadowed(bo);
>
> if (!bo->parent)
> continue;
>
> ttm_bo_move_to_lru_tail(&bo->tbo, &bo->tbo.mem,
> &vm->lru_bulk_move);
> - if (bo->shadow)
> - ttm_bo_move_to_lru_tail(&bo->shadow->tbo,
> - &bo->shadow->tbo.mem,
> + if (shadow)
> + ttm_bo_move_to_lru_tail(&shadow->tbo, &shadow->tbo.mem,
> &vm->lru_bulk_move);
> }
> spin_unlock(&adev->mman.bdev.lru_lock);
> @@ -692,12 +692,13 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
>
> list_for_each_entry_safe(bo_base, tmp, &vm->evicted, vm_status) {
> struct amdgpu_bo *bo = bo_base->bo;
> + struct amdgpu_bo *shadow = amdgpu_bo_shadowed(bo);
>
> r = validate(param, bo);
> if (r)
> return r;
> - if (bo->shadow) {
> - r = validate(param, bo->shadow);
> + if (shadow) {
> + r = validate(param, shadow);
> if (r)
> return r;
> }
> @@ -705,7 +706,7 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> if (bo->tbo.type != ttm_bo_type_kernel) {
> amdgpu_vm_bo_moved(bo_base);
> } else {
> - vm->update_funcs->map_table(bo);
> + vm->update_funcs->map_table(to_amdgpu_bo_vm(bo));
> amdgpu_vm_bo_relocated(bo_base);
> }
> }
> @@ -737,7 +738,7 @@ bool amdgpu_vm_ready(struct amdgpu_vm *vm)
> *
> * @adev: amdgpu_device pointer
> * @vm: VM to clear BO from
> - * @bo: BO to clear
> + * @vmbo: BO to clear
> * @immediate: use an immediate update
> *
> * Root PD needs to be reserved when calling this.
> @@ -747,13 +748,14 @@ bool amdgpu_vm_ready(struct amdgpu_vm *vm)
> */
> static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
> struct amdgpu_vm *vm,
> - struct amdgpu_bo *bo,
> + struct amdgpu_bo_vm *vmbo,
> bool immediate)
> {
> struct ttm_operation_ctx ctx = { true, false };
> unsigned level = adev->vm_manager.root_level;
> struct amdgpu_vm_update_params params;
> - struct amdgpu_bo *ancestor = bo;
> + struct amdgpu_bo *ancestor = &vmbo->bo;
> + struct amdgpu_bo *bo = &vmbo->bo;
> unsigned entries, ats_entries;
> uint64_t addr;
> int r;
> @@ -793,14 +795,15 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
> if (r)
> return r;
>
> - if (bo->shadow) {
> - r = ttm_bo_validate(&bo->shadow->tbo, &bo->shadow->placement,
> - &ctx);
> + if (vmbo->shadow) {
> + struct amdgpu_bo *shadow = vmbo->shadow;
> +
> + r = ttm_bo_validate(&shadow->tbo, &shadow->placement, &ctx);
> if (r)
> return r;
> }
>
> - r = vm->update_funcs->map_table(bo);
> + r = vm->update_funcs->map_table(vmbo);
> if (r)
> return r;
>
> @@ -824,7 +827,7 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
> amdgpu_gmc_get_vm_pde(adev, level, &value, &flags);
> }
>
> - r = vm->update_funcs->update(¶ms, bo, addr, 0, ats_entries,
> + r = vm->update_funcs->update(¶ms, vmbo, addr, 0, ats_entries,
> value, flags);
> if (r)
> return r;
> @@ -847,7 +850,7 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
> }
> }
>
> - r = vm->update_funcs->update(¶ms, bo, addr, 0, entries,
> + r = vm->update_funcs->update(¶ms, vmbo, addr, 0, entries,
> value, flags);
> if (r)
> return r;
> @@ -863,14 +866,16 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
> * @vm: requesting vm
> * @level: the page table level
> * @immediate: use a immediate update
> - * @bo: pointer to the buffer object pointer
> + * @vmbo: pointer to the buffer object pointer
> */
> static int amdgpu_vm_pt_create(struct amdgpu_device *adev,
> struct amdgpu_vm *vm,
> int level, bool immediate,
> - struct amdgpu_bo **bo)
> + struct amdgpu_bo_vm **vmbo)
> {
> struct amdgpu_bo_param bp;
> + struct amdgpu_bo *bo;
> + struct dma_resv *resv;
> int r;
>
> memset(&bp, 0, sizeof(bp));
> @@ -881,7 +886,7 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev,
> bp.domain = amdgpu_bo_get_preferred_pin_domain(adev, bp.domain);
> bp.flags = AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
> AMDGPU_GEM_CREATE_CPU_GTT_USWC;
> - bp.bo_ptr_size = sizeof(struct amdgpu_bo);
> + bp.bo_ptr_size = sizeof(struct amdgpu_bo_vm);
> if (vm->use_cpu_for_update)
> bp.flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
>
> @@ -890,26 +895,41 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev,
> if (vm->root.base.bo)
> bp.resv = vm->root.base.bo->tbo.base.resv;
>
> - r = amdgpu_bo_create(adev, &bp, bo);
> + r = amdgpu_bo_create_vm(adev, &bp, vmbo);
> if (r)
> return r;
>
> - if (vm->is_compute_context && (adev->flags & AMD_IS_APU))
> + bo = &(*vmbo)->bo;
> + if (vm->is_compute_context && (adev->flags & AMD_IS_APU)) {
> + (*vmbo)->shadow = NULL;
> return 0;
> + }
>
> if (!bp.resv)
> - WARN_ON(dma_resv_lock((*bo)->tbo.base.resv,
> + WARN_ON(dma_resv_lock(bo->tbo.base.resv,
> NULL));
> - r = amdgpu_bo_create_shadow(adev, bp.size, *bo);
> + resv = bp.resv;
> + memset(&bp, 0, sizeof(bp));
> + bp.size = amdgpu_vm_bo_size(adev, level);
> + bp.domain = AMDGPU_GEM_DOMAIN_GTT;
> + bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
> + bp.type = ttm_bo_type_kernel;
> + bp.resv = bo->tbo.base.resv;
> + bp.bo_ptr_size = sizeof(struct amdgpu_bo);
>
> - if (!bp.resv)
> - dma_resv_unlock((*bo)->tbo.base.resv);
> + r = amdgpu_bo_create(adev, &bp, &(*vmbo)->shadow);
> +
> + if (!resv)
> + dma_resv_unlock(bo->tbo.base.resv);
>
> if (r) {
> - amdgpu_bo_unref(bo);
> + amdgpu_bo_unref(&bo);
> return r;
> }
>
> + (*vmbo)->shadow->parent = amdgpu_bo_ref(bo);
> + amdgpu_bo_add_to_shadow_list((*vmbo)->shadow);
> +
> return 0;
> }
>
> @@ -933,7 +953,8 @@ static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
> bool immediate)
> {
> struct amdgpu_vm_pt *entry = cursor->entry;
> - struct amdgpu_bo *pt;
> + struct amdgpu_bo *pt_bo;
> + struct amdgpu_bo_vm *pt;
> int r;
>
> if (cursor->level < AMDGPU_VM_PTB && !entry->entries) {
> @@ -957,8 +978,9 @@ static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
> /* Keep a reference to the root directory to avoid
> * freeing them up in the wrong order.
> */
> - pt->parent = amdgpu_bo_ref(cursor->parent->base.bo);
> - amdgpu_vm_bo_base_init(&entry->base, vm, pt);
> + pt_bo = &pt->bo;
> + pt_bo->parent = amdgpu_bo_ref(cursor->parent->base.bo);
> + amdgpu_vm_bo_base_init(&entry->base, vm, pt_bo);
>
> r = amdgpu_vm_clear_bo(adev, vm, pt, immediate);
> if (r)
> @@ -968,7 +990,7 @@ static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
>
> error_free_pt:
> amdgpu_bo_unref(&pt->shadow);
> - amdgpu_bo_unref(&pt);
> + amdgpu_bo_unref(&pt_bo);
> return r;
> }
>
> @@ -979,10 +1001,13 @@ static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
> */
> static void amdgpu_vm_free_table(struct amdgpu_vm_pt *entry)
> {
> + struct amdgpu_bo *shadow;
> +
> if (entry->base.bo) {
> + shadow = amdgpu_bo_shadowed(entry->base.bo);
> entry->base.bo->vm_bo = NULL;
> list_del(&entry->base.vm_status);
> - amdgpu_bo_unref(&entry->base.bo->shadow);
> + amdgpu_bo_unref(&shadow);
> amdgpu_bo_unref(&entry->base.bo);
> }
> kvfree(entry->entries);
> @@ -1284,7 +1309,8 @@ static int amdgpu_vm_update_pde(struct amdgpu_vm_update_params *params,
> level += params->adev->vm_manager.root_level;
> amdgpu_gmc_get_pde_for_bo(entry->base.bo, level, &pt, &flags);
> pde = (entry - parent->entries) * 8;
> - return vm->update_funcs->update(params, bo, pde, pt, 1, 0, flags);
> + return vm->update_funcs->update(params, to_amdgpu_bo_vm(bo), pde, pt,
> + 1, 0, flags);
> }
>
> /**
> @@ -1364,9 +1390,9 @@ int amdgpu_vm_update_pdes(struct amdgpu_device *adev,
> * Make sure to set the right flags for the PTEs at the desired level.
> */
> static void amdgpu_vm_update_flags(struct amdgpu_vm_update_params *params,
> - struct amdgpu_bo *bo, unsigned level,
> + struct amdgpu_bo_vm *pt, unsigned int level,
> uint64_t pe, uint64_t addr,
> - unsigned count, uint32_t incr,
> + unsigned int count, uint32_t incr,
> uint64_t flags)
>
> {
> @@ -1382,7 +1408,7 @@ static void amdgpu_vm_update_flags(struct amdgpu_vm_update_params *params,
> flags |= AMDGPU_PTE_EXECUTABLE;
> }
>
> - params->vm->update_funcs->update(params, bo, pe, addr, count, incr,
> + params->vm->update_funcs->update(params, pt, pe, addr, count, incr,
> flags);
> }
>
> @@ -1562,9 +1588,9 @@ static int amdgpu_vm_update_ptes(struct amdgpu_vm_update_params *params,
> nptes, dst, incr, upd_flags,
> vm->task_info.pid,
> vm->immediate.fence_context);
> - amdgpu_vm_update_flags(params, pt, cursor.level,
> - pe_start, dst, nptes, incr,
> - upd_flags);
> + amdgpu_vm_update_flags(params, to_amdgpu_bo_vm(pt),
> + cursor.level, pe_start, dst,
> + nptes, incr, upd_flags);
>
> pe_start += nptes * 8;
> dst += nptes * incr;
> @@ -2674,7 +2700,7 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
> struct amdgpu_vm_bo_base *bo_base;
>
> /* shadow bo doesn't have bo base, its validation needs its parent */
> - if (bo->parent && bo->parent->shadow == bo)
> + if (bo->parent && (amdgpu_bo_shadowed(bo->parent) == bo))
> bo = bo->parent;
>
> for (bo_base = bo->vm_bo; bo_base; bo_base = bo_base->next) {
> @@ -2843,7 +2869,8 @@ long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout)
> */
> int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, u32 pasid)
> {
> - struct amdgpu_bo *root;
> + struct amdgpu_bo *root_bo;
> + struct amdgpu_bo_vm *root;
> int r, i;
>
> vm->va = RB_ROOT_CACHED;
> @@ -2897,16 +2924,16 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, u32 pasid)
> false, &root);
> if (r)
> goto error_free_delayed;
> -
> - r = amdgpu_bo_reserve(root, true);
> + root_bo = &root->bo;
> + r = amdgpu_bo_reserve(root_bo, true);
> if (r)
> goto error_free_root;
>
> - r = dma_resv_reserve_shared(root->tbo.base.resv, 1);
> + r = dma_resv_reserve_shared(root_bo->tbo.base.resv, 1);
> if (r)
> goto error_unreserve;
>
> - amdgpu_vm_bo_base_init(&vm->root.base, vm, root);
> + amdgpu_vm_bo_base_init(&vm->root.base, vm, root_bo);
>
> r = amdgpu_vm_clear_bo(adev, vm, root, false);
> if (r)
> @@ -2935,8 +2962,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, u32 pasid)
> amdgpu_bo_unreserve(vm->root.base.bo);
>
> error_free_root:
> - amdgpu_bo_unref(&vm->root.base.bo->shadow);
> - amdgpu_bo_unref(&vm->root.base.bo);
> + amdgpu_bo_unref(&root->shadow);
> + amdgpu_bo_unref(&root_bo);
> vm->root.base.bo = NULL;
>
> error_free_delayed:
> @@ -3034,7 +3061,9 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> */
> 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, false);
> + r = amdgpu_vm_clear_bo(adev, vm,
> + to_amdgpu_bo_vm(vm->root.base.bo),
> + false);
> if (r)
> goto free_idr;
> }
> @@ -3078,7 +3107,7 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> }
>
> /* Free the shadow bo for compute VM */
> - amdgpu_bo_unref(&vm->root.base.bo->shadow);
> + amdgpu_bo_unref(&to_amdgpu_bo_vm(vm->root.base.bo)->shadow);
>
> if (pasid)
> vm->pasid = pasid;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> index 39d60e3c4e32..bee439dd673a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> @@ -39,6 +39,7 @@
> struct amdgpu_bo_va;
> struct amdgpu_job;
> struct amdgpu_bo_list_entry;
> +struct amdgpu_bo_vm;
>
> /*
> * GPUVM handling
> @@ -239,11 +240,11 @@ struct amdgpu_vm_update_params {
> };
>
> struct amdgpu_vm_update_funcs {
> - int (*map_table)(struct amdgpu_bo *bo);
> + int (*map_table)(struct amdgpu_bo_vm *bo);
> int (*prepare)(struct amdgpu_vm_update_params *p, struct dma_resv *resv,
> enum amdgpu_sync_mode sync_mode);
> int (*update)(struct amdgpu_vm_update_params *p,
> - struct amdgpu_bo *bo, uint64_t pe, uint64_t addr,
> + struct amdgpu_bo_vm *bo, uint64_t pe, uint64_t addr,
> unsigned count, uint32_t incr, uint64_t flags);
> int (*commit)(struct amdgpu_vm_update_params *p,
> struct dma_fence **fence);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
> index ac45d9c7a4e9..03a44be50dd7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
> @@ -29,9 +29,9 @@
> *
> * @table: newly allocated or validated PD/PT
> */
> -static int amdgpu_vm_cpu_map_table(struct amdgpu_bo *table)
> +static int amdgpu_vm_cpu_map_table(struct amdgpu_bo_vm *table)
> {
> - return amdgpu_bo_kmap(table, NULL);
> + return amdgpu_bo_kmap(&table->bo, NULL);
> }
>
> /**
> @@ -58,7 +58,7 @@ static int amdgpu_vm_cpu_prepare(struct amdgpu_vm_update_params *p,
> * amdgpu_vm_cpu_update - helper to update page tables via CPU
> *
> * @p: see amdgpu_vm_update_params definition
> - * @bo: PD/PT to update
> + * @vmbo: PD/PT to update
> * @pe: byte offset of the PDE/PTE, relative to start of PDB/PTB
> * @addr: dst addr to write into pe
> * @count: number of page entries to update
> @@ -68,7 +68,7 @@ static int amdgpu_vm_cpu_prepare(struct amdgpu_vm_update_params *p,
> * Write count number of PT/PD entries directly.
> */
> static int amdgpu_vm_cpu_update(struct amdgpu_vm_update_params *p,
> - struct amdgpu_bo *bo, uint64_t pe,
> + struct amdgpu_bo_vm *vmbo, uint64_t pe,
> uint64_t addr, unsigned count, uint32_t incr,
> uint64_t flags)
> {
> @@ -76,13 +76,13 @@ static int amdgpu_vm_cpu_update(struct amdgpu_vm_update_params *p,
> uint64_t value;
> int r;
>
> - if (bo->tbo.moving) {
> - r = dma_fence_wait(bo->tbo.moving, true);
> + if (vmbo->bo.tbo.moving) {
> + r = dma_fence_wait(vmbo->bo.tbo.moving, true);
> if (r)
> return r;
> }
>
> - pe += (unsigned long)amdgpu_bo_kptr(bo);
> + pe += (unsigned long)amdgpu_bo_kptr(&vmbo->bo);
>
> trace_amdgpu_vm_set_ptes(pe, addr, count, incr, flags, p->immediate);
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> index a83a646759c5..422958152c2b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
> @@ -33,11 +33,11 @@
> *
> * @table: newly allocated or validated PD/PT
> */
> -static int amdgpu_vm_sdma_map_table(struct amdgpu_bo *table)
> +static int amdgpu_vm_sdma_map_table(struct amdgpu_bo_vm *table)
> {
> int r;
>
> - r = amdgpu_ttm_alloc_gart(&table->tbo);
> + r = amdgpu_ttm_alloc_gart(&table->bo.tbo);
> if (r)
> return r;
>
> @@ -186,7 +186,7 @@ static void amdgpu_vm_sdma_set_ptes(struct amdgpu_vm_update_params *p,
> * amdgpu_vm_sdma_update - execute VM update
> *
> * @p: see amdgpu_vm_update_params definition
> - * @bo: PD/PT to update
> + * @vmbo: PD/PT to update
> * @pe: byte offset of the PDE/PTE, relative to start of PDB/PTB
> * @addr: dst addr to write into pe
> * @count: number of page entries to update
> @@ -197,10 +197,11 @@ static void amdgpu_vm_sdma_set_ptes(struct amdgpu_vm_update_params *p,
> * the IB.
> */
> static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
> - struct amdgpu_bo *bo, uint64_t pe,
> + struct amdgpu_bo_vm *vmbo, uint64_t pe,
> uint64_t addr, unsigned count, uint32_t incr,
> uint64_t flags)
> {
> + struct amdgpu_bo *bo = &vmbo->bo;
> enum amdgpu_ib_pool_type pool = p->immediate ? AMDGPU_IB_POOL_IMMEDIATE
> : AMDGPU_IB_POOL_DELAYED;
> unsigned int i, ndw, nptes;
> @@ -238,8 +239,8 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
>
> if (!p->pages_addr) {
> /* set page commands needed */
> - if (bo->shadow)
> - amdgpu_vm_sdma_set_ptes(p, bo->shadow, pe, addr,
> + if (vmbo->shadow)
> + amdgpu_vm_sdma_set_ptes(p, vmbo->shadow, pe, addr,
> count, incr, flags);
> amdgpu_vm_sdma_set_ptes(p, bo, pe, addr, count,
> incr, flags);
> @@ -248,7 +249,7 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
>
> /* copy commands needed */
> ndw -= p->adev->vm_manager.vm_pte_funcs->copy_pte_num_dw *
> - (bo->shadow ? 2 : 1);
> + (vmbo->shadow ? 2 : 1);
>
> /* for padding */
> ndw -= 7;
> @@ -263,8 +264,8 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
> pte[i] |= flags;
> }
>
> - if (bo->shadow)
> - amdgpu_vm_sdma_copy_ptes(p, bo->shadow, pe, nptes);
> + if (vmbo->shadow)
> + amdgpu_vm_sdma_copy_ptes(p, vmbo->shadow, pe, nptes);
> amdgpu_vm_sdma_copy_ptes(p, bo, pe, nptes);
>
> pe += nptes * 8;
> --
> 2.31.1
>
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