1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Common Code for DAMON Modules 4 */ 5 6 #include <linux/damon.h> 7 8 #include "modules-common.h" 9 10 /* 11 * Allocate, set, and return a DAMON context for the physical address space. 12 * @ctxp: Pointer to save the point to the newly created context 13 * @targetp: Pointer to save the point to the newly created target 14 */ 15 int damon_modules_new_paddr_ctx_target(struct damon_ctx **ctxp, 16 struct damon_target **targetp) 17 { 18 struct damon_ctx *ctx; 19 struct damon_target *target; 20 21 ctx = damon_new_ctx(); 22 if (!ctx) 23 return -ENOMEM; 24 25 if (damon_select_ops(ctx, DAMON_OPS_PADDR)) { 26 damon_destroy_ctx(ctx); 27 return -EINVAL; 28 } 29 30 target = damon_new_target(); 31 if (!target) { 32 damon_destroy_ctx(ctx); 33 return -ENOMEM; 34 } 35 damon_add_target(ctx, target); 36 37 *ctxp = ctx; 38 *targetp = target; 39 return 0; 40 } 41