| /Linux-v6.1/arch/arm/common/ |
| D | mcpm_entry.c | 3 * arch/arm/common/mcpm_entry.c -- entry point for multi-cluster PM
24 * see Documentation/arm/cluster-pm-race-avoidance.rst.
34 static void __mcpm_cpu_going_down(unsigned int cpu, unsigned int cluster) in __mcpm_cpu_going_down() argument
36 mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_GOING_DOWN; in __mcpm_cpu_going_down()
37 sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu); in __mcpm_cpu_going_down()
42 * cluster can be torn down without disrupting this CPU.
47 static void __mcpm_cpu_down(unsigned int cpu, unsigned int cluster) in __mcpm_cpu_down() argument
50 mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_DOWN; in __mcpm_cpu_down()
51 sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu); in __mcpm_cpu_down()
56 * __mcpm_outbound_leave_critical: Leave the cluster teardown critical section.
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| D | mcpm_head.S | 3 * arch/arm/common/mcpm_head.S -- kernel entry point for multi-cluster PM
8 * Refer to Documentation/arm/cluster-pm-race-avoidance.rst
26 1903: .asciz " cluster"
54 ubfx r10, r0, #8, #8 @ r10 = cluster
86 mla r8, r0, r10, r8 @ r8 = sync cluster base
94 @ At this point, the cluster cannot unexpectedly enter the GOING_DOWN
98 mla r11, r0, r10, r11 @ r11 = cluster first man lock
104 bne mcpm_setup_wait @ wait for cluster setup if so
107 cmp r0, #CLUSTER_UP @ cluster already up?
108 bne mcpm_setup @ if not, set up the cluster
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| D | bL_switcher.c | 3 * arch/arm/common/bL_switcher.c -- big.LITTLE cluster switcher core driver
118 * with the cluster number.
141 * bL_switch_to - Switch to a specific cluster for the current CPU
142 * @new_cluster_id: the ID of the cluster to switch to.
273 int cluster; in bL_switcher_thread() local
288 cluster = t->wanted_cluster; in bL_switcher_thread()
295 if (cluster != -1) { in bL_switcher_thread()
296 bL_switch_to(cluster); in bL_switcher_thread()
321 * bL_switch_request_cb - Switch to a specific cluster for the given CPU,
325 * @new_cluster_id: the ID of the cluster to switch to.
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| /Linux-v6.1/arch/arm/mach-sunxi/ |
| D | mc_smp.c | 11 * Cluster cache enable trampoline code adapted from MCPM framework
88 static bool sunxi_core_is_cortex_a15(unsigned int core, unsigned int cluster) in sunxi_core_is_cortex_a15() argument
91 int cpu = cluster * SUNXI_CPUS_PER_CLUSTER + core; in sunxi_core_is_cortex_a15()
103 * would be mid way in a core or cluster power sequence. in sunxi_core_is_cortex_a15()
105 pr_err("%s: Couldn't get CPU cluster %u core %u device node\n", in sunxi_core_is_cortex_a15()
106 __func__, cluster, core); in sunxi_core_is_cortex_a15()
116 static int sunxi_cpu_power_switch_set(unsigned int cpu, unsigned int cluster, in sunxi_cpu_power_switch_set() argument
122 reg = readl(prcm_base + PRCM_PWR_SWITCH_REG(cluster, cpu)); in sunxi_cpu_power_switch_set()
125 pr_debug("power clamp for cluster %u cpu %u already open\n", in sunxi_cpu_power_switch_set()
126 cluster, cpu); in sunxi_cpu_power_switch_set()
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| /Linux-v6.1/arch/arm/mach-versatile/ |
| D | tc2_pm.c | 46 static int tc2_pm_cpu_powerup(unsigned int cpu, unsigned int cluster) in tc2_pm_cpu_powerup() argument
48 pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); in tc2_pm_cpu_powerup()
49 if (cluster >= TC2_CLUSTERS || cpu >= tc2_nr_cpus[cluster]) in tc2_pm_cpu_powerup()
51 ve_spc_set_resume_addr(cluster, cpu, in tc2_pm_cpu_powerup()
53 ve_spc_cpu_wakeup_irq(cluster, cpu, true); in tc2_pm_cpu_powerup()
57 static int tc2_pm_cluster_powerup(unsigned int cluster) in tc2_pm_cluster_powerup() argument
59 pr_debug("%s: cluster %u\n", __func__, cluster); in tc2_pm_cluster_powerup()
60 if (cluster >= TC2_CLUSTERS) in tc2_pm_cluster_powerup()
62 ve_spc_powerdown(cluster, false); in tc2_pm_cluster_powerup()
66 static void tc2_pm_cpu_powerdown_prepare(unsigned int cpu, unsigned int cluster) in tc2_pm_cpu_powerdown_prepare() argument
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| D | dcscb.c | 3 * dcscb.c - Dual Cluster System Configuration Block
39 static int dcscb_cpu_powerup(unsigned int cpu, unsigned int cluster) in dcscb_cpu_powerup() argument
43 pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); in dcscb_cpu_powerup()
44 if (cluster >= 2 || !(cpumask & dcscb_allcpus_mask[cluster])) in dcscb_cpu_powerup()
47 rst_hold = readl_relaxed(dcscb_base + RST_HOLD0 + cluster * 4); in dcscb_cpu_powerup()
49 writel_relaxed(rst_hold, dcscb_base + RST_HOLD0 + cluster * 4); in dcscb_cpu_powerup()
53 static int dcscb_cluster_powerup(unsigned int cluster) in dcscb_cluster_powerup() argument
57 pr_debug("%s: cluster %u\n", __func__, cluster); in dcscb_cluster_powerup()
58 if (cluster >= 2) in dcscb_cluster_powerup()
61 /* remove cluster reset and add individual CPU's reset */ in dcscb_cluster_powerup()
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| D | spc.c | 50 /* SPC CPU/cluster reset statue */
71 /* TC2 static dual-cluster configuration */
97 * A15s cluster identifier
111 static inline bool cluster_is_a15(u32 cluster) in cluster_is_a15() argument
113 return cluster == info->a15_clusid; in cluster_is_a15()
142 * @cluster: mpidr[15:8] bitfield describing cluster affinity level
150 void ve_spc_cpu_wakeup_irq(u32 cluster, u32 cpu, bool set) in ve_spc_cpu_wakeup_irq() argument
154 if (cluster >= MAX_CLUSTERS) in ve_spc_cpu_wakeup_irq()
159 if (!cluster_is_a15(cluster)) in ve_spc_cpu_wakeup_irq()
175 * @cluster: mpidr[15:8] bitfield describing cluster affinity level
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| /Linux-v6.1/Documentation/arm/ |
| D | cluster-pm-race-avoidance.rst | 2 Cluster-wide Power-up/power-down race avoidance algorithm
6 cluster setup and teardown operations and to manage hardware coherency
29 cluster-level operations are only performed when it is truly safe to do
34 are not immediately enabled when a cluster powers up. Since enabling or
38 power-down and power-up at the cluster level.
48 Each cluster and CPU is assigned a state, as follows:
67 The CPU or cluster is not coherent, and is either powered off or
71 The CPU or cluster has committed to moving to the UP state.
76 The CPU or cluster is active and coherent at the hardware
81 The CPU or cluster has committed to moving to the DOWN
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| /Linux-v6.1/fs/ocfs2/cluster/ |
| D | nodemanager.c | 18 * cluster active at a time. Changing this will require trickling
19 * cluster references throughout where nodes are looked up */
49 struct o2nm_cluster *cluster = o2nm_single_cluster; in o2nm_configured_node_map() local
51 BUG_ON(bytes < (sizeof(cluster->cl_nodes_bitmap))); in o2nm_configured_node_map()
53 if (cluster == NULL) in o2nm_configured_node_map()
56 read_lock(&cluster->cl_nodes_lock); in o2nm_configured_node_map()
57 memcpy(map, cluster->cl_nodes_bitmap, sizeof(cluster->cl_nodes_bitmap)); in o2nm_configured_node_map()
58 read_unlock(&cluster->cl_nodes_lock); in o2nm_configured_node_map()
64 static struct o2nm_node *o2nm_node_ip_tree_lookup(struct o2nm_cluster *cluster, in o2nm_node_ip_tree_lookup() argument
69 struct rb_node **p = &cluster->cl_node_ip_tree.rb_node; in o2nm_node_ip_tree_lookup()
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| /Linux-v6.1/drivers/perf/ |
| D | qcom_l2_pmu.c | 121 * The cache is made up of one or more clusters, each cluster has its own PMU.
122 * Each cluster is associated with one or more CPUs.
143 /* The CPU that is used for collecting events on this cluster */
145 /* All the CPUs associated with this cluster */
243 static void cluster_pmu_set_resr(struct cluster_pmu *cluster, in cluster_pmu_set_resr() argument
254 spin_lock_irqsave(&cluster->pmu_lock, flags); in cluster_pmu_set_resr()
262 spin_unlock_irqrestore(&cluster->pmu_lock, flags); in cluster_pmu_set_resr()
268 * all CPUS, subunits and ID independent events in this cluster.
319 static void l2_cache_cluster_set_period(struct cluster_pmu *cluster, in l2_cache_cluster_set_period() argument
339 static int l2_cache_get_event_idx(struct cluster_pmu *cluster, in l2_cache_get_event_idx() argument
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| /Linux-v6.1/arch/arm/mach-exynos/ |
| D | mcpm-exynos.c | 57 static int exynos_cpu_powerup(unsigned int cpu, unsigned int cluster) in exynos_cpu_powerup() argument
59 unsigned int cpunr = cpu + (cluster * EXYNOS5420_CPUS_PER_CLUSTER); in exynos_cpu_powerup()
62 pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); in exynos_cpu_powerup()
64 cluster >= EXYNOS5420_NR_CLUSTERS) in exynos_cpu_powerup()
71 * This assumes the cluster number of the big cores(Cortex A15) in exynos_cpu_powerup()
76 if (cluster && in exynos_cpu_powerup()
77 cluster == MPIDR_AFFINITY_LEVEL(cpu_logical_map(0), 1)) { in exynos_cpu_powerup()
92 pr_err("cpu %u cluster %u powerup failed\n", in exynos_cpu_powerup()
93 cpu, cluster); in exynos_cpu_powerup()
106 static int exynos_cluster_powerup(unsigned int cluster) in exynos_cluster_powerup() argument
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| /Linux-v6.1/arch/arm/include/asm/ |
| D | mcpm.h | 13 * Maximum number of possible clusters / CPUs per cluster.
39 * This is used to indicate where the given CPU from given cluster should
44 void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr);
51 void mcpm_set_early_poke(unsigned cpu, unsigned cluster,
55 * CPU/cluster power operations API for higher subsystems to use.
66 * mcpm_cpu_power_up - make given CPU in given cluster runable
68 * @cpu: CPU number within given cluster
69 * @cluster: cluster number for the CPU
71 * The identified CPU is brought out of reset. If the cluster was powered
73 * in the cluster run, and ensuring appropriate cluster setup.
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| /Linux-v6.1/arch/arm/mach-hisi/ |
| D | platmcpm.c | 71 static bool hip04_cluster_is_down(unsigned int cluster) in hip04_cluster_is_down() argument
76 if (hip04_cpu_table[cluster][i]) in hip04_cluster_is_down()
81 static void hip04_set_snoop_filter(unsigned int cluster, unsigned int on) in hip04_set_snoop_filter() argument
89 data |= 1 << cluster; in hip04_set_snoop_filter()
91 data &= ~(1 << cluster); in hip04_set_snoop_filter()
100 unsigned int mpidr, cpu, cluster; in hip04_boot_secondary() local
106 cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); in hip04_boot_secondary()
110 if (cluster >= HIP04_MAX_CLUSTERS || cpu >= HIP04_MAX_CPUS_PER_CLUSTER) in hip04_boot_secondary()
115 if (hip04_cpu_table[cluster][cpu]) in hip04_boot_secondary()
118 sys_dreq = sysctrl + SC_CPU_RESET_DREQ(cluster); in hip04_boot_secondary()
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| /Linux-v6.1/Documentation/ABI/testing/ |
| D | sysfs-ocfs2 | 14 covers how ocfs2 uses distributed locking between cluster
18 cluster nodes can interoperate if they have an identical
34 the available plugins to support ocfs2 cluster operation.
35 A cluster plugin is required to use ocfs2 in a cluster.
38 * 'o2cb' - The classic o2cb cluster stack that ocfs2 has
40 * 'user' - A plugin supporting userspace cluster software
54 cluster plugin is currently in use by the filesystem.
62 the cluster stack in use. The contents may change
63 when all filesystems are unmounted and the cluster stack
71 of current ocfs2 cluster stack. This value is set by
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| /Linux-v6.1/arch/mips/include/asm/ |
| D | mips-cps.h | 123 * mips_cps_cluster_config - return (GCR|CPC)_CONFIG from a cluster
124 * @cluster: the ID of the cluster whose config we want
126 * Read the value of GCR_CONFIG (or its CPC_CONFIG mirror) from a @cluster.
130 static inline uint64_t mips_cps_cluster_config(unsigned int cluster) in mips_cps_cluster_config() argument
138 * within this cluster. in mips_cps_cluster_config()
140 WARN_ON(cluster != 0); in mips_cps_cluster_config()
148 mips_cm_lock_other(cluster, 0, 0, CM_GCR_Cx_OTHER_BLOCK_GLOBAL); in mips_cps_cluster_config()
157 * mips_cps_numcores - return the number of cores present in a cluster
158 * @cluster: the ID of the cluster whose core count we want
163 static inline unsigned int mips_cps_numcores(unsigned int cluster) in mips_cps_numcores() argument
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| /Linux-v6.1/drivers/cpufreq/ |
| D | vexpress-spc-cpufreq.c | 46 #define ACTUAL_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq << 1 : freq) argument
47 #define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq) argument
72 static unsigned int find_cluster_maxfreq(int cluster) in find_cluster_maxfreq() argument
80 if (cluster == per_cpu(physical_cluster, j) && in find_cluster_maxfreq()
155 /* Recalc freq for old cluster when switching clusters */ in ve_spc_cpufreq_set_rate()
157 /* Switch cluster */ in ve_spc_cpufreq_set_rate()
162 /* Set freq of old cluster if there are cpus left on it */ in ve_spc_cpufreq_set_rate()
168 pr_err("%s: clk_set_rate failed: %d, old cluster: %d\n", in ve_spc_cpufreq_set_rate()
283 u32 cluster = raw_cpu_to_cluster(cpu_dev->id); in _put_cluster_clk_and_freq_table() local
285 if (!freq_table[cluster]) in _put_cluster_clk_and_freq_table()
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| D | tegra186-cpufreq.c | 28 /* CPU0 - A57 Cluster */
33 /* CPU1 - Denver Cluster */
38 /* CPU2 - Denver Cluster */
43 /* CPU3 - A57 Cluster */
48 /* CPU4 - A57 Cluster */
53 /* CPU5 - A57 Cluster */
75 unsigned int cluster = data->cpus[policy->cpu].bpmp_cluster_id; in tegra186_cpufreq_init() local
77 policy->freq_table = data->clusters[cluster].table; in tegra186_cpufreq_init()
100 struct tegra186_cpufreq_cluster *cluster; in tegra186_cpufreq_get() local
112 cluster = &data->clusters[cluster_id]; in tegra186_cpufreq_get()
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| /Linux-v6.1/drivers/remoteproc/ |
| D | ti_k3_r5_remoteproc.c | 72 * All cluster mode values are not applicable on all SoCs. The following
97 * struct k3_r5_cluster - K3 R5F Cluster structure
99 * @mode: Mode to configure the Cluster - Split or LockStep
100 * @cores: list of R5 cores within the cluster
147 * @cluster: cached pointer to parent cluster structure
157 struct k3_r5_cluster *cluster; member
277 static int k3_r5_lockstep_reset(struct k3_r5_cluster *cluster) in k3_r5_lockstep_reset() argument
283 list_for_each_entry(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
294 list_for_each_entry(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
307 list_for_each_entry_continue_reverse(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
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| /Linux-v6.1/drivers/clk/mvebu/ |
| D | ap-cpu-clk.c | 128 * struct ap806_clk: CPU cluster clock controller instance
129 * @cluster: Cluster clock controller index
130 * @clk_name: Cluster clock controller name
131 * @dev : Cluster clock device
132 * @hw: HW specific structure of Cluster clock controller
136 unsigned int cluster; member
152 (clk->cluster * clk->pll_regs->cluster_offset); in ap_cpu_clk_recalc_rate()
168 (clk->cluster * clk->pll_regs->cluster_offset); in ap_cpu_clk_set_rate()
170 (clk->cluster * clk->pll_regs->cluster_offset); in ap_cpu_clk_set_rate()
172 (clk->cluster * clk->pll_regs->cluster_offset); in ap_cpu_clk_set_rate()
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| /Linux-v6.1/fs/fat/ |
| D | cache.c | 7 * Mar 1999. AV. Changed cache, so that it uses the starting cluster instead
21 int fcluster; /* cluster number in the file. */
22 int dcluster; /* cluster number on disk. */
123 /* Find the same part as "new" in cluster-chain. */ in fat_cache_merge()
225 int fat_get_cluster(struct inode *inode, int cluster, int *fclus, int *dclus) in fat_get_cluster() argument
240 "%s: invalid start cluster (i_pos %lld, start %08x)", in fat_get_cluster()
244 if (cluster == 0) in fat_get_cluster()
247 if (fat_cache_lookup(inode, cluster, &cid, fclus, dclus) < 0) { in fat_get_cluster()
256 while (*fclus < cluster) { in fat_get_cluster()
257 /* prevent the infinite loop of cluster chain */ in fat_get_cluster()
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| /Linux-v6.1/drivers/cpuidle/ |
| D | cpuidle-big_little.c | 32 * cluster state since, when all CPUs in a cluster hit it, the cluster
35 * There is no notion of cluster states in the menu governor, so CPUs
36 * have to define CPU states where possibly the cluster will be shutdown
38 * at random times; however the cluster state provides target_residency
39 * values as if all CPUs in a cluster enter the state at once; this is
46 * current cluster operating point. It is the time it takes to get the CPU
47 * up and running when the CPU is powered up on cluster wake-up from shutdown.
51 * target_residency: it is the minimum amount of time the cluster has
52 * to be down to break even in terms of power consumption. cluster
69 .desc = "ARM little-cluster power down",
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| /Linux-v6.1/tools/perf/pmu-events/arch/s390/cf_z14/ |
| D | extended.json | 132 "BriefDescription": "L1D On-Cluster L3 Sourced Writes",
133 …1 Data cache directory where the returned cache line was sourced from On-Cluster Level-3 cache wit…
139 "BriefDescription": "L1D On-Cluster Memory Sourced Writes",
140 … Level-1 Data cache directory where the returned cache line was sourced from an On-Cluster memory."
146 "BriefDescription": "L1D On-Cluster L3 Sourced Writes with Intervention",
147 …ata cache directory where the returned cache line was sourced from an On-Cluster Level-3 cache wit…
153 "BriefDescription": "L1D Off-Cluster L3 Sourced Writes",
154 …ta cache directory where the returned cache line was sourced from an Off-Cluster Level-3 cache wit…
160 "BriefDescription": "L1D Off-Cluster Memory Sourced Writes",
161 …he Level-1 Data cache directory where the returned cache line was sourced from Off-Cluster memory."
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| /Linux-v6.1/tools/perf/pmu-events/arch/s390/cf_z15/ |
| D | extended.json | 132 "BriefDescription": "L1D On-Cluster L3 Sourced Writes",
133 …1 Data cache directory where the returned cache line was sourced from On-Cluster Level-3 cache wit…
139 "BriefDescription": "L1D On-Cluster Memory Sourced Writes",
140 … Level-1 Data cache directory where the returned cache line was sourced from an On-Cluster memory."
146 "BriefDescription": "L1D On-Cluster L3 Sourced Writes with Intervention",
147 …ata cache directory where the returned cache line was sourced from an On-Cluster Level-3 cache wit…
153 "BriefDescription": "L1D Off-Cluster L3 Sourced Writes",
154 …ta cache directory where the returned cache line was sourced from an Off-Cluster Level-3 cache wit…
160 "BriefDescription": "L1D Off-Cluster Memory Sourced Writes",
161 …he Level-1 Data cache directory where the returned cache line was sourced from Off-Cluster memory."
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| /Linux-v6.1/fs/ext4/ |
| D | extents_status.h | 82 * Pending cluster reservations for bigalloc file systems
84 * A cluster with a pending reservation is a logical cluster shared by at
87 * reservation is said to be pending because a cluster reservation would
88 * have to be taken in the event all blocks in the cluster shared with
92 * The set of pending cluster reservations is an auxiliary data structure
93 * used with the extents status tree to implement reserved cluster/block
95 * records all pending cluster reservations.
100 * reserved cluster count if it results in the removal of all delayed
101 * and unwritten extents (blocks) from a cluster that is not shared with a
103 * whether the cluster is shared can be done by searching for a pending
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| /Linux-v6.1/Documentation/driver-api/md/ |
| D | md-cluster.rst | 2 MD Cluster
5 The cluster MD is a shared-device RAID for a cluster, it supports
12 Separate write-intent-bitmaps are used for each cluster node.
45 node joins the cluster, it acquires the lock in PW mode and it stays
46 so during the lifetime the node is part of the cluster. The lock
55 joins the cluster.
128 The DLM LVB is used to communicate within nodes of the cluster. There
145 acknowledged by all nodes in the cluster. The BAST of the resource
216 When a node fails, the DLM informs the cluster with the slot
217 number. The node starts a cluster recovery thread. The cluster
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