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1// SPDX-License-Identifier: GPL-2.02/*3 * Common Primitives for DAMON Modules4 *5 * Author: SeongJae Park <sj@kernel.org>6 */7 8#include <linux/damon.h>9 10#include "modules-common.h"11 12/*13 * Allocate, set, and return a DAMON context for the physical address space.14 * @ctxp: Pointer to save the point to the newly created context15 * @targetp: Pointer to save the point to the newly created target16 */17int damon_modules_new_paddr_ctx_target(struct damon_ctx **ctxp,18 struct damon_target **targetp)19{20 struct damon_ctx *ctx;21 struct damon_target *target;22 23 ctx = damon_new_ctx();24 if (!ctx)25 return -ENOMEM;26 27 if (damon_select_ops(ctx, DAMON_OPS_PADDR)) {28 damon_destroy_ctx(ctx);29 return -EINVAL;30 }31 32 target = damon_new_target();33 if (!target) {34 damon_destroy_ctx(ctx);35 return -ENOMEM;36 }37 damon_add_target(ctx, target);38 39 *ctxp = ctx;40 *targetp = target;41 return 0;42}43