From: Matthew Brost Date: Thu, 4 Jul 2024 04:16:47 +0000 (-0700) Subject: drm/xe: Add xe_vm_pgtable_update_op to xe_vma_ops X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=2e524668c440104633af1effcc85d1d6234c7ccf;p=users%2Fdwmw2%2Flinux.git drm/xe: Add xe_vm_pgtable_update_op to xe_vma_ops Each xe_vma_op resolves to 0-3 pt_ops. Add storage for the pt_ops to xe_vma_ops which is dynamically allocated based the number and types of xe_vma_op in the xe_vma_ops list. Allocation only implemented in this patch. This will help with converting xe_vma_ops (multiple xe_vma_op) in a atomic update unit. Signed-off-by: Matthew Brost Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20240704041652.272920-3-matthew.brost@intel.com --- diff --git a/drivers/gpu/drm/xe/xe_pt_types.h b/drivers/gpu/drm/xe/xe_pt_types.h index cee70cb0f0143..2093150f461e4 100644 --- a/drivers/gpu/drm/xe/xe_pt_types.h +++ b/drivers/gpu/drm/xe/xe_pt_types.h @@ -74,4 +74,16 @@ struct xe_vm_pgtable_update { u32 flags; }; +/** struct xe_vm_pgtable_update_op - Page table update operation */ +struct xe_vm_pgtable_update_op { + /** @entries: entries to update for this operation */ + struct xe_vm_pgtable_update entries[XE_VM_MAX_LEVEL * 2 + 1]; + /** @num_entries: number of entries for this update operation */ + u32 num_entries; + /** @bind: is a bind */ + bool bind; + /** @rebind: is a rebind */ + bool rebind; +}; + #endif diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 0c764647a552d..6677874af5a44 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -718,6 +718,42 @@ int xe_vm_userptr_check_repin(struct xe_vm *vm) list_empty_careful(&vm->userptr.invalidated)) ? 0 : -EAGAIN; } +static int xe_vma_ops_alloc(struct xe_vma_ops *vops) +{ + int i; + + for (i = 0; i < XE_MAX_TILES_PER_DEVICE; ++i) { + if (!vops->pt_update_ops[i].num_ops) + continue; + + vops->pt_update_ops[i].ops = + kmalloc_array(vops->pt_update_ops[i].num_ops, + sizeof(*vops->pt_update_ops[i].ops), + GFP_KERNEL); + if (!vops->pt_update_ops[i].ops) + return -ENOMEM; + } + + return 0; +} + +static void xe_vma_ops_fini(struct xe_vma_ops *vops) +{ + int i; + + for (i = 0; i < XE_MAX_TILES_PER_DEVICE; ++i) + kfree(vops->pt_update_ops[i].ops); +} + +static void xe_vma_ops_incr_pt_update_ops(struct xe_vma_ops *vops, u8 tile_mask) +{ + int i; + + for (i = 0; i < XE_MAX_TILES_PER_DEVICE; ++i) + if (BIT(i) & tile_mask) + ++vops->pt_update_ops[i].num_ops; +} + static void xe_vm_populate_rebind(struct xe_vma_op *op, struct xe_vma *vma, u8 tile_mask) { @@ -745,6 +781,7 @@ static int xe_vm_ops_add_rebind(struct xe_vma_ops *vops, struct xe_vma *vma, xe_vm_populate_rebind(op, vma, tile_mask); list_add_tail(&op->link, &vops->list); + xe_vma_ops_incr_pt_update_ops(vops, tile_mask); return 0; } @@ -785,6 +822,10 @@ int xe_vm_rebind(struct xe_vm *vm, bool rebind_worker) goto free_ops; } + err = xe_vma_ops_alloc(&vops); + if (err) + goto free_ops; + fence = ops_execute(vm, &vops); if (IS_ERR(fence)) { err = PTR_ERR(fence); @@ -799,6 +840,7 @@ free_ops: list_del(&op->link); kfree(op); } + xe_vma_ops_fini(&vops); return err; } @@ -820,12 +862,20 @@ struct dma_fence *xe_vma_rebind(struct xe_vm *vm, struct xe_vma *vma, u8 tile_ma if (err) return ERR_PTR(err); + err = xe_vma_ops_alloc(&vops); + if (err) { + fence = ERR_PTR(err); + goto free_ops; + } + fence = ops_execute(vm, &vops); +free_ops: list_for_each_entry_safe(op, next_op, &vops.list, link) { list_del(&op->link); kfree(op); } + xe_vma_ops_fini(&vops); return fence; } @@ -2287,7 +2337,6 @@ static int xe_vma_op_commit(struct xe_vm *vm, struct xe_vma_op *op) return err; } - static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q, struct drm_gpuva_ops *ops, struct xe_sync_entry *syncs, u32 num_syncs, @@ -2339,6 +2388,9 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q, return PTR_ERR(vma); op->map.vma = vma; + if (op->map.immediate || !xe_vm_in_fault_mode(vm)) + xe_vma_ops_incr_pt_update_ops(vops, + op->tile_mask); break; } case DRM_GPUVA_OP_REMAP: @@ -2383,6 +2435,8 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q, vm_dbg(&xe->drm, "REMAP:SKIP_PREV: addr=0x%016llx, range=0x%016llx", (ULL)op->remap.start, (ULL)op->remap.range); + } else { + xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask); } } @@ -2419,13 +2473,16 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q, vm_dbg(&xe->drm, "REMAP:SKIP_NEXT: addr=0x%016llx, range=0x%016llx", (ULL)op->remap.start, (ULL)op->remap.range); + } else { + xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask); } } + xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask); break; } case DRM_GPUVA_OP_UNMAP: case DRM_GPUVA_OP_PREFETCH: - /* Nothing to do */ + xe_vma_ops_incr_pt_update_ops(vops, op->tile_mask); break; default: drm_warn(&vm->xe->drm, "NOT POSSIBLE"); @@ -3272,11 +3329,16 @@ int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file) goto unwind_ops; } + err = xe_vma_ops_alloc(&vops); + if (err) + goto unwind_ops; + err = vm_bind_ioctl_ops_execute(vm, &vops); unwind_ops: if (err && err != -ENODATA) vm_bind_ioctl_ops_unwind(vm, ops, args->num_binds); + xe_vma_ops_fini(&vops); for (i = args->num_binds - 1; i >= 0; --i) if (ops[i]) drm_gpuva_ops_free(&vm->gpuvm, ops[i]); diff --git a/drivers/gpu/drm/xe/xe_vm_types.h b/drivers/gpu/drm/xe/xe_vm_types.h index ce1a63a5e3e70..211c888011829 100644 --- a/drivers/gpu/drm/xe/xe_vm_types.h +++ b/drivers/gpu/drm/xe/xe_vm_types.h @@ -21,6 +21,7 @@ struct xe_bo; struct xe_sync_entry; struct xe_user_fence; struct xe_vm; +struct xe_vm_pgtable_update_op; #define XE_VMA_READ_ONLY DRM_GPUVA_USERBITS #define XE_VMA_DESTROYED (DRM_GPUVA_USERBITS << 1) @@ -368,6 +369,13 @@ struct xe_vma_ops { struct xe_sync_entry *syncs; /** @num_syncs: number of syncs */ u32 num_syncs; + /** @pt_update_ops: page table update operations */ + struct { + /** @ops: operations */ + struct xe_vm_pgtable_update_op *ops; + /** @num_ops: number of operations */ + u32 num_ops; + } pt_update_ops[XE_MAX_TILES_PER_DEVICE]; }; #endif