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/linux-6.6.21/arch/arm/common/
Dmcpm_entry.c34 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()
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()
63 static void __mcpm_outbound_leave_critical(unsigned int cluster, int state) in __mcpm_outbound_leave_critical() argument
66 mcpm_sync.clusters[cluster].cluster = state; in __mcpm_outbound_leave_critical()
67 sync_cache_w(&mcpm_sync.clusters[cluster].cluster); in __mcpm_outbound_leave_critical()
82 static bool __mcpm_outbound_enter_critical(unsigned int cpu, unsigned int cluster) in __mcpm_outbound_enter_critical() argument
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DbL_switcher.c273 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()
422 unsigned int cpu, cluster, mask; in bL_switcher_halve_cpus() local
429 cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 1); in bL_switcher_halve_cpus()
430 if (cluster >= 2) { in bL_switcher_halve_cpus()
436 mask |= (1 << cluster); in bL_switcher_halve_cpus()
454 cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 1); in bL_switcher_halve_cpus()
456 cluster_0 = cluster; in bL_switcher_halve_cpus()
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Dmcpm_head.S56 ubfx r10, r0, #8, #8 @ r10 = cluster
88 mla r8, r0, r10, r8 @ r8 = sync cluster base
96 @ At this point, the cluster cannot unexpectedly enter the GOING_DOWN
100 mla r11, r0, r10, r11 @ r11 = cluster first man lock
106 bne mcpm_setup_wait @ wait for cluster setup if so
109 cmp r0, #CLUSTER_UP @ cluster already up?
110 bne mcpm_setup @ if not, set up the cluster
120 @ Signal that the cluster is being brought up:
125 @ Any CPU trying to take the cluster into CLUSTER_GOING_DOWN from this
128 @ Wait for any previously-pending cluster teardown operations to abort
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/linux-6.6.21/arch/arm/mach-sunxi/
Dmc_smp.c87 static bool sunxi_core_is_cortex_a15(unsigned int core, unsigned int cluster) in sunxi_core_is_cortex_a15() argument
90 int cpu = cluster * SUNXI_CPUS_PER_CLUSTER + core; in sunxi_core_is_cortex_a15()
105 __func__, cluster, core); in sunxi_core_is_cortex_a15()
115 static int sunxi_cpu_power_switch_set(unsigned int cpu, unsigned int cluster, in sunxi_cpu_power_switch_set() argument
121 reg = readl(prcm_base + PRCM_PWR_SWITCH_REG(cluster, cpu)); in sunxi_cpu_power_switch_set()
125 cluster, cpu); in sunxi_cpu_power_switch_set()
129 writel(0xff, prcm_base + PRCM_PWR_SWITCH_REG(cluster, cpu)); in sunxi_cpu_power_switch_set()
131 writel(0xfe, prcm_base + PRCM_PWR_SWITCH_REG(cluster, cpu)); in sunxi_cpu_power_switch_set()
133 writel(0xf8, prcm_base + PRCM_PWR_SWITCH_REG(cluster, cpu)); in sunxi_cpu_power_switch_set()
135 writel(0xf0, prcm_base + PRCM_PWR_SWITCH_REG(cluster, cpu)); in sunxi_cpu_power_switch_set()
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/linux-6.6.21/arch/arm/mach-versatile/
Dtc2_pm.c46 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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Ddcscb.c39 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()
62 rst_hold = readl_relaxed(dcscb_base + RST_HOLD0 + cluster * 4); in dcscb_cluster_powerup()
64 rst_hold |= dcscb_allcpus_mask[cluster]; in dcscb_cluster_powerup()
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Dspc.c111 static inline bool cluster_is_a15(u32 cluster) in cluster_is_a15() argument
113 return cluster == info->a15_clusid; in cluster_is_a15()
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()
179 void ve_spc_set_resume_addr(u32 cluster, u32 cpu, u32 addr) in ve_spc_set_resume_addr() argument
183 if (cluster >= MAX_CLUSTERS) in ve_spc_set_resume_addr()
186 if (cluster_is_a15(cluster)) in ve_spc_set_resume_addr()
204 void ve_spc_powerdown(u32 cluster, bool enable) in ve_spc_powerdown() argument
208 if (cluster >= MAX_CLUSTERS) in ve_spc_powerdown()
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Dspc.h13 void ve_spc_cpu_wakeup_irq(u32 cluster, u32 cpu, bool set);
14 void ve_spc_set_resume_addr(u32 cluster, u32 cpu, u32 addr);
15 void ve_spc_powerdown(u32 cluster, bool enable);
16 int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster);
/linux-6.6.21/fs/ocfs2/cluster/
Dnodemanager.c49 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 bitmap_copy(map, cluster->cl_nodes_bitmap, O2NM_MAX_NODES); 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()
102 struct o2nm_cluster *cluster = o2nm_single_cluster; in o2nm_get_node_by_ip() local
104 if (cluster == NULL) in o2nm_get_node_by_ip()
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/linux-6.6.21/arch/arm/mach-exynos/
Dmcpm-exynos.c57 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()
76 if (cluster && in exynos_cpu_powerup()
77 cluster == MPIDR_AFFINITY_LEVEL(cpu_logical_map(0), 1)) { 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
108 pr_debug("%s: cluster %u\n", __func__, cluster); in exynos_cluster_powerup()
109 if (cluster >= EXYNOS5420_NR_CLUSTERS) in exynos_cluster_powerup()
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/linux-6.6.21/arch/arm/mach-hisi/
Dplatmcpm.c71 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-6.6.21/drivers/perf/
Dqcom_l2_pmu.c243 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()
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
344 int num_ctrs = cluster->l2cache_pmu->num_counters - 1; in l2_cache_get_event_idx()
348 if (test_and_set_bit(l2_cycle_ctr_idx, cluster->used_counters)) in l2_cache_get_event_idx()
354 idx = find_first_zero_bit(cluster->used_counters, num_ctrs); in l2_cache_get_event_idx()
365 if (test_bit(group, cluster->used_groups)) in l2_cache_get_event_idx()
368 set_bit(idx, cluster->used_counters); in l2_cache_get_event_idx()
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/linux-6.6.21/arch/arm/include/asm/
Dmcpm.h44 void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr);
51 void mcpm_set_early_poke(unsigned cpu, unsigned cluster,
84 int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster);
132 int mcpm_wait_for_cpu_powerdown(unsigned int cpu, unsigned int cluster);
219 int (*cpu_powerup)(unsigned int cpu, unsigned int cluster);
220 int (*cluster_powerup)(unsigned int cluster);
221 void (*cpu_suspend_prepare)(unsigned int cpu, unsigned int cluster);
222 void (*cpu_powerdown_prepare)(unsigned int cpu, unsigned int cluster);
223 void (*cluster_powerdown_prepare)(unsigned int cluster);
226 void (*cpu_is_up)(unsigned int cpu, unsigned int cluster);
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/linux-6.6.21/drivers/remoteproc/
Dti_k3_r5_remoteproc.c162 struct k3_r5_cluster *cluster; member
282 static int k3_r5_lockstep_reset(struct k3_r5_cluster *cluster) in k3_r5_lockstep_reset() argument
288 list_for_each_entry(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
299 list_for_each_entry(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
312 list_for_each_entry_continue_reverse(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
317 core = list_last_entry(&cluster->cores, struct k3_r5_core, elem); in k3_r5_lockstep_reset()
319 list_for_each_entry_from_reverse(core, &cluster->cores, elem) { in k3_r5_lockstep_reset()
327 static int k3_r5_lockstep_release(struct k3_r5_cluster *cluster) in k3_r5_lockstep_release() argument
333 list_for_each_entry_reverse(core, &cluster->cores, elem) { in k3_r5_lockstep_release()
345 list_for_each_entry_reverse(core, &cluster->cores, elem) { in k3_r5_lockstep_release()
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Dxlnx_r5_remoteproc.c710 struct zynqmp_r5_cluster *cluster; in add_tcm_banks() local
720 cluster = dev_get_drvdata(dev->parent); in add_tcm_banks()
721 if (!cluster) { in add_tcm_banks()
731 if (cluster->mode == SPLIT_MODE) in add_tcm_banks()
733 else if (cluster->mode == LOCKSTEP_MODE) in add_tcm_banks()
896 static int zynqmp_r5_get_tcm_node(struct zynqmp_r5_cluster *cluster) in zynqmp_r5_get_tcm_node() argument
898 struct device *dev = cluster->dev; in zynqmp_r5_get_tcm_node()
906 tcm_bank_count = tcm_bank_count / cluster->core_count; in zynqmp_r5_get_tcm_node()
914 for (i = 0; i < cluster->core_count; i++) { in zynqmp_r5_get_tcm_node()
915 r5_core = cluster->r5_cores[i]; in zynqmp_r5_get_tcm_node()
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/linux-6.6.21/Documentation/arch/arm/
Dcluster-pm-race-avoidance.rst6 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
89 Each cluster is also assigned a state, but it is necessary to split the
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/linux-6.6.21/drivers/cpufreq/
Dvexpress-spc-cpufreq.c45 #define ACTUAL_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq << 1 : freq) argument
46 #define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq) argument
71 static unsigned int find_cluster_maxfreq(int cluster) in find_cluster_maxfreq() argument
79 if (cluster == per_cpu(physical_cluster, j) && in find_cluster_maxfreq()
282 u32 cluster = raw_cpu_to_cluster(cpu_dev->id); in _put_cluster_clk_and_freq_table() local
284 if (!freq_table[cluster]) in _put_cluster_clk_and_freq_table()
287 clk_put(clk[cluster]); in _put_cluster_clk_and_freq_table()
288 dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); in _put_cluster_clk_and_freq_table()
294 u32 cluster = cpu_to_cluster(cpu_dev->id); in put_cluster_clk_and_freq_table() local
297 if (atomic_dec_return(&cluster_usage[cluster])) in put_cluster_clk_and_freq_table()
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Dtegra186-cpufreq.c75 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()
115 return (cluster->ref_clk_khz * ndiv) / cluster->div; in tegra186_cpufreq_get()
131 struct tegra186_cpufreq_cluster *cluster, unsigned int cluster_id) in init_vhint_table() argument
187 cluster->ref_clk_khz = data->ref_clk_hz / 1000; in init_vhint_table()
188 cluster->div = data->pdiv * data->mdiv; in init_vhint_table()
207 point->frequency = (cluster->ref_clk_khz * ndiv) / cluster->div; in init_vhint_table()
243 struct tegra186_cpufreq_cluster *cluster = &data->clusters[i]; in tegra186_cpufreq_probe() local
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/linux-6.6.21/Documentation/devicetree/bindings/cpufreq/
Dapple,cluster-cpufreq.yaml4 $id: http://devicetree.org/schemas/cpufreq/apple,cluster-cpufreq.yaml#
7 title: Apple SoC cluster cpufreq device
13 Apple SoCs (e.g. M1) have a per-cpu-cluster DVFS controller that is part of
14 the cluster management register block. This binding uses the standard
23 - apple,t8103-cluster-cpufreq
24 - apple,t8112-cluster-cpufreq
25 - const: apple,cluster-cpufreq
27 - const: apple,t6000-cluster-cpufreq
28 - const: apple,t8103-cluster-cpufreq
29 - const: apple,cluster-cpufreq
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/linux-6.6.21/Documentation/ABI/testing/
Dsysfs-ocfs214 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-6.6.21/arch/mips/include/asm/
Dmips-cps.h130 static inline uint64_t mips_cps_cluster_config(unsigned int cluster) in mips_cps_cluster_config() argument
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()
163 static inline unsigned int mips_cps_numcores(unsigned int cluster) in mips_cps_numcores() argument
170 mips_cps_cluster_config(cluster) + 1); in mips_cps_numcores()
180 static inline unsigned int mips_cps_numiocu(unsigned int cluster) in mips_cps_numiocu() argument
186 mips_cps_cluster_config(cluster)); in mips_cps_numiocu()
198 static inline unsigned int mips_cps_numvps(unsigned int cluster, unsigned int core) in mips_cps_numvps() argument
209 mips_cm_lock_other(cluster, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL); in mips_cps_numvps()
/linux-6.6.21/fs/fat/
Dcache.c225 int fat_get_cluster(struct inode *inode, int cluster, int *fclus, int *dclus) in fat_get_cluster() argument
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()
291 static int fat_bmap_cluster(struct inode *inode, int cluster) in fat_bmap_cluster() argument
299 ret = fat_get_cluster(inode, cluster, &fclus, &dclus); in fat_bmap_cluster()
316 int cluster, offset; in fat_get_mapped_cluster() local
318 cluster = sector >> (sbi->cluster_bits - sb->s_blocksize_bits); in fat_get_mapped_cluster()
320 cluster = fat_bmap_cluster(inode, cluster); in fat_get_mapped_cluster()
321 if (cluster < 0) in fat_get_mapped_cluster()
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/linux-6.6.21/arch/arm/mach-milbeaut/
Dplatsmp.c25 unsigned int mpidr, cpu, cluster; in m10v_boot_secondary() local
32 cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); in m10v_boot_secondary()
38 __func__, cpu, l_cpu, cluster); in m10v_boot_secondary()
48 unsigned int mpidr, cpu, cluster; in m10v_smp_init() local
61 cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); in m10v_smp_init()
62 pr_info("MCPM boot on cpu_%u cluster_%u\n", cpu, cluster); in m10v_smp_init()
/linux-6.6.21/Documentation/devicetree/bindings/phy/
Dphy-mvebu.txt23 Armada 375 USB cluster
27 controller. The USB cluster control register allows to manage common
32 - compatible: "marvell,armada-375-usb-cluster"
33 - reg: Should contain usb cluster register location and length.
38 usbcluster: usb-cluster@18400 {
39 compatible = "marvell,armada-375-usb-cluster";
/linux-6.6.21/arch/arm64/boot/dts/apple/
Dt600x-dieX.dtsi10 …compatible = "apple,t6000-cluster-cpufreq", "apple,t8103-cluster-cpufreq", "apple,cluster-cpufreq";
16 …compatible = "apple,t6000-cluster-cpufreq", "apple,t8103-cluster-cpufreq", "apple,cluster-cpufreq";
22 …compatible = "apple,t6000-cluster-cpufreq", "apple,t8103-cluster-cpufreq", "apple,cluster-cpufreq";

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