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imf08.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf08.hostedemail.com: domain of yunjeong.mun@sk.com designates 166.125.252.92 as permitted sender) smtp.mailfrom=yunjeong.mun@sk.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1751855503; a=rsa-sha256; cv=none; b=OTlX+Neu8Wnpj0s9sYl3UV70JROW7Rl88t7GK5gpz1KkSRVWaYaZBsDh4z28bCoiiDT2nm x5mZfsbHH89Y77vhEZFTXBzyGl2KicfncwlVEUos2jPmm8Cc72KMMk1wK6n9q9PETXZemQ +qrgVd2tYY3B+xYJ/mKV3iZ8chZgcno= X-AuditID: a67dfc5b-681ff7000002311f-74-686b3189c4f4 From: Yunjeong Mun To: sj@kernel.org Cc: akpm@linux-foundation.org, damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel_team@skhynix.com, honggyu.kim@sk.com Subject: [PATCH v3] samples/damon: support automatic node address detection Date: Mon, 7 Jul 2025 11:31:34 +0900 Message-ID: <20250707023135.453-1-yunjeong.mun@sk.com> X-Mailer: git-send-email 2.48.1.windows.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprPLMWRmVeSWpSXmKPExsXC9ZZnoW6XYXaGwc42RYs569ewWTz5/5vV 4vKuOWwW99b8Z7U4/PUNkwOrx6ZVnWwemz5NYvc4MeM3i8eLzTMZPT5vkgtgjeKySUnNySxL LdK3S+DKuP/pNGvBKrGK77v3MTYwnhDqYuTkkBAwkejYsIcRxt7wsYcVxGYT0JA4eOgkM4gt IiAo0f94BlCci4NZYC6jxJEz78EahAW8Je7MvAhmswioSrx+fx6sgVfATOLO3sdMEEM1JRou 3WOCiAtKnJz5hAXEZhaQl2jeOpsZZKiEwF9WiXXL/jNDNEhKHFxxg2UCI+8sJD2zkPQsYGRa xSiUmVeWm5iZY6KXUZmXWaGXnJ+7iREYbMtq/0TvYPx0IfgQowAHoxIPr0F4VoYQa2JZcWXu IUYJDmYlEd42tuwMId6UxMqq1KL8+KLSnNTiQ4zSHCxK4rxG38pThATSE0tSs1NTC1KLYLJM HJxSDYzRb3VrqxikY051/rJPd2etsV4p8ube0XfpZ+xP7ueJu7XPTjB0ZW37xkWOrLP0z1Q/ 8g/OlFEsMoq6FpVf1/bhvP35dQ8ELlrvk1G5m3mOZ4fywhMSTBJynHJffAOW7e8xq58mVDHh vOCkrhWbX8yR1Kr+G+9/X5vfb+871jnfHSo6nSdcVVNiKc5INNRiLipOBAAdubppMgIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupnluLIzCtJLcpLzFFi42LhmiGro9tpmJ1hMH2nssWc9WvYLJ78/81q 8fnZa2aLw3NPslpc3jWHzeLemv+sFoe/vmFyYPfYtKqTzWPTp0nsHidm/GbxeLF5JqPHt9se HotffGDy+LxJLoA9issmJTUnsyy1SN8ugSvj/qfTrAWrxCq+797H2MB4QqiLkZNDQsBEYsPH HlYQm01AQ+LgoZPMILaIgKBE/+MZQHEuDmaBuYwSR868ZwRJCAt4S9yZeRHMZhFQlXj9/jxY A6+AmcSdvY+ZIIZqSjRcuscEEReUODnzCQuIzSwgL9G8dTbzBEauWUhSs5CkFjAyrWIUycwr y03MzDHVK87OqMzLrNBLzs/dxAgMpmW1fybuYPxy2f0QowAHoxIPr0F4VoYQa2JZcWXuIUYJ DmYlEd42tuwMId6UxMqq1KL8+KLSnNTiQ4zSHCxK4rxe4akJQgLpiSWp2ampBalFMFkmDk6p BsbM5/t3yTtdOB+oIHqmv0Bnmzy30MNDryMaP37kfzGh/YtAvdL+KRmHdqtuKbjzk/Pfqa3V krM3twav+GEcGtm5hH+GSuExzq39p9x9J29lZM6bsfGN3bGku+1Zv5vX1Wsdco/l69HrKWuO ENv36OruaW3tkTvTk3fPdg0tTS4PZ2M+ciiZa7USS3FGoqEWc1FxIgASYitCIgIAAA== X-CFilter-Loop: Reflected X-Stat-Signature: cpo7nua91ffoa5hsnmsiue4778zpcyiz X-Rspamd-Queue-Id: AA812160004 X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1751855502-229487 X-HE-Meta: U2FsdGVkX1+Y2hLNqDETOP9tKOdEqf/4dJMdo1+Lc6muyEXu1SeBLlO57QxdHgkYCPi2mgL6HCehd9KSd6+fpK13mu5GfpTHwExW429QmKGRr6b3wFbA1j2OcLCeZuRn+ZAiAGLYTcA+0jMjmT4WTo69a9itwbL8Rz5vny6DvAYm5Vw44Lj0ZrvVifTHETl7tupR3z7ecVLPUX+zZ04OmoFBaXAlmWmfPrM2JmJ+ZNw0/WSMWpUMT8c1C3kxt+VY9udokxuj0/9I+jizQlipe9rbhhz/pAHaUHxGvirq7EEWxrafifI/au2SSiuxmgHKylntnvKmrCes8u2leIEfwFCWbfSkR/EPYr2VMIwQ9IzOxB1/fqiNdHt6QFURZtrKbPKonJMSQeCpcTd6FTFZf66Vm/Ofx4mR5TbuIBtcK9Gv7NsXZ3uUtpQ9ClpLz/ywPVZreeEF4FylJbSjob7dHs+9++hjD6gD4Cm7f1Vwv4pvPKqhQOOHgJdqWGWOCjtTviBsRMuzqJ89hI9evQnj40+c1Mv2wkhX2zwFJjtZyxIi2XvUcLn18ianRBiBP9WyPjacLwGCQsOzR3MqySZnk97E+6Zi50Tp5hEpYO0GppcYOMVZ9KdVAyKFEXFQ5XvaNfwA6UxVgzJ1HOQNUd2UpmuN4lUg0ZXzKlXkkApkNSVpPPmKnO6met2MnY/ZPYBPWDCF9lHvb++Tuf852S6kuSJk30B7lDR4+h82kOzABI8EC1uoHVZ/UC0ebb112hEfdE8LQ1RedUb5noOne7TflXDj0MQKv2RXglK0DLusN2a+oSKYfDxOB3FaxVBxARvEgtzAorGyGjbLvVYFE5W8Pv2fj18kMiqwEjpHVW9PKrRvTaYpBRSd4qwXl350iZBOD+tv/QN1Yz1g4A4nWLLmLQ69wephErmEYt2EBuddz+f/YuwiJEGBqep94WLeSqLPuSgTBcGmT1yFAd2zd1V vGzS9LL2 VwK7r X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This patch adds a new knob `detect_node_addresses`, which determines whether the physical address range is set manually using the existing knobs or automatically by the mtier module. When `detect_node_addresses` set to 'Y', mtier automatically converts node0 and node1 to their physical addresses. If set to 'N', it uses the existing 'node#_start_addr' and 'node#_end_addr' to define regions as before. Suggested-by: Honggyu Kim Signed-off-by: Yunjeong Mun --- V2 -> V3: Removed an unusable comment V1 -> V2: Removed second patch, added a new knob, and cleand up code --- samples/damon/mtier.c | 41 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 3 deletions(-) diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index f3220d6e6739..3a6ae78efafe 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -42,8 +42,33 @@ static bool enable __read_mostly; module_param_cb(enable, &enable_param_ops, &enable, 0600); MODULE_PARM_DESC(enable, "Enable of disable DAMON_SAMPLE_MTIER"); +static bool detect_node_addresses __read_mostly; +module_param(detect_node_addresses, bool, 0600); + static struct damon_ctx *ctxs[2]; +struct region_range { + phys_addr_t start; + phys_addr_t end; +}; + +static int nid_to_phys(int target_node, struct region_range *range) +{ + + if (!node_online(target_node)) { + pr_err("NUMA node %d is not online\n", target_node); + return -EINVAL; + } + + unsigned long start_pfn = node_start_pfn(target_node); + unsigned long end_pfn = node_end_pfn(target_node); + + range->start = PFN_PHYS(start_pfn); + range->end = PFN_PHYS(end_pfn); + + return 0; +} + static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) { struct damon_ctx *ctx; @@ -53,6 +78,8 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) struct damos *scheme; struct damos_quota_goal *quota_goal; struct damos_filter *filter; + struct region_range addr; + int ret; ctx = damon_new_ctx(); if (!ctx) @@ -82,9 +109,17 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) if (!target) goto free_out; damon_add_target(ctx, target); - region = damon_new_region( - promote ? node1_start_addr : node0_start_addr, - promote ? node1_end_addr : node0_end_addr); + + if (detect_node_addresses) { + ret = promote ? nid_to_phys(1, &addr) : nid_to_phys(0, &addr); + if (ret) + goto free_out; + } else { + addr.start = promote ? node1_start_addr : node0_start_addr; + addr.end = promote ? node1_end_addr : node0_end_addr; + } + + region = damon_new_region(addr.start, addr.end); if (!region) goto free_out; damon_add_region(region, target); base-commit: db16fe88cdf83a1e7fdf75de282025b6ad61d08f -- 2.34.1