From 98d4884ca55883e8b16180bd969a8bccaa885c80 Mon Sep 17 00:00:00 2001 From: Jayachandran C Date: Sat, 21 Dec 2013 16:52:26 +0530 Subject: [PATCH] MIPS: Netlogic: Add cpu to node mapping for XLP9XX XLP9XX has 20 cores per node, opposed to 8 on earlier XLP8XX. Update code that calculates node id from cpu id to handle this. Signed-off-by: Jayachandran C Signed-off-by: John Crispin Patchwork: http://patchwork.linux-mips.org/patch/6283/ --- arch/mips/include/asm/mach-netlogic/multi-node.h | 11 +++++++++-- arch/mips/include/asm/netlogic/mips-extns.h | 7 ++++++- arch/mips/netlogic/common/irq.c | 6 +++--- arch/mips/netlogic/common/smp.c | 8 +++++--- arch/mips/netlogic/xlp/setup.c | 5 +++++ arch/mips/netlogic/xlp/wakeup.c | 4 ++-- arch/mips/netlogic/xlr/wakeup.c | 2 +- arch/mips/pci/msi-xlp.c | 4 ++-- 8 files changed, 33 insertions(+), 14 deletions(-) diff --git a/arch/mips/include/asm/mach-netlogic/multi-node.h b/arch/mips/include/asm/mach-netlogic/multi-node.h index df9869d13afd..9ed8dacdc37c 100644 --- a/arch/mips/include/asm/mach-netlogic/multi-node.h +++ b/arch/mips/include/asm/mach-netlogic/multi-node.h @@ -47,9 +47,16 @@ #endif #endif -#define NLM_CORES_PER_NODE 8 #define NLM_THREADS_PER_CORE 4 -#define NLM_CPUS_PER_NODE (NLM_CORES_PER_NODE * NLM_THREADS_PER_CORE) +#ifdef CONFIG_CPU_XLR +#define nlm_cores_per_node() 8 +#else +extern unsigned int xlp_cores_per_node; +#define nlm_cores_per_node() xlp_cores_per_node +#endif + +#define nlm_threads_per_node() (nlm_cores_per_node() * NLM_THREADS_PER_CORE) +#define nlm_cpuid_to_node(c) ((c) / nlm_threads_per_node()) struct nlm_soc_info { unsigned long coremask; /* cores enabled on the soc */ diff --git a/arch/mips/include/asm/netlogic/mips-extns.h b/arch/mips/include/asm/netlogic/mips-extns.h index f299d31d7c1a..de9aada6f4c1 100644 --- a/arch/mips/include/asm/netlogic/mips-extns.h +++ b/arch/mips/include/asm/netlogic/mips-extns.h @@ -146,7 +146,12 @@ static inline int hard_smp_processor_id(void) static inline int nlm_nodeid(void) { - return (__read_32bit_c0_register($15, 1) >> 5) & 0x3; + uint32_t prid = read_c0_prid(); + + if ((prid & 0xff00) == PRID_IMP_NETLOGIC_XLP9XX) + return (__read_32bit_c0_register($15, 1) >> 7) & 0x7; + else + return (__read_32bit_c0_register($15, 1) >> 5) & 0x3; } static inline unsigned int nlm_core_id(void) diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c index 3800bf6551ab..8092bb320618 100644 --- a/arch/mips/netlogic/common/irq.c +++ b/arch/mips/netlogic/common/irq.c @@ -223,7 +223,7 @@ static void nlm_init_node_irqs(int node) continue; nlm_pic_init_irt(nodep->picbase, irt, i, - node * NLM_CPUS_PER_NODE, 0); + node * nlm_threads_per_node(), 0); nlm_setup_pic_irq(node, i, i, irt); } } @@ -232,8 +232,8 @@ void nlm_smp_irq_init(int hwcpuid) { int node, cpu; - node = hwcpuid / NLM_CPUS_PER_NODE; - cpu = hwcpuid % NLM_CPUS_PER_NODE; + node = nlm_cpuid_to_node(hwcpuid); + cpu = hwcpuid % nlm_threads_per_node(); if (cpu == 0 && node != 0) nlm_init_node_irqs(node); diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c index c0eded01fde9..6baae15cc7b1 100644 --- a/arch/mips/netlogic/common/smp.c +++ b/arch/mips/netlogic/common/smp.c @@ -63,7 +63,7 @@ void nlm_send_ipi_single(int logical_cpu, unsigned int action) uint64_t picbase; cpu = cpu_logical_map(logical_cpu); - node = cpu / NLM_CPUS_PER_NODE; + node = nlm_cpuid_to_node(cpu); picbase = nlm_get_node(node)->picbase; if (action & SMP_CALL_FUNCTION) @@ -152,7 +152,7 @@ void nlm_boot_secondary(int logical_cpu, struct task_struct *idle) int cpu, node; cpu = cpu_logical_map(logical_cpu); - node = cpu / NLM_CPUS_PER_NODE; + node = nlm_cpuid_to_node(logical_cpu); nlm_next_sp = (unsigned long)__KSTK_TOS(idle); nlm_next_gp = (unsigned long)task_thread_info(idle); @@ -164,7 +164,7 @@ void nlm_boot_secondary(int logical_cpu, struct task_struct *idle) void __init nlm_smp_setup(void) { unsigned int boot_cpu; - int num_cpus, i, ncore; + int num_cpus, i, ncore, node; volatile u32 *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY); char buf[64]; @@ -187,6 +187,8 @@ void __init nlm_smp_setup(void) __cpu_number_map[i] = num_cpus; __cpu_logical_map[num_cpus] = i; set_cpu_possible(num_cpus, true); + node = nlm_cpuid_to_node(i); + cpumask_set_cpu(num_cpus, &nlm_get_node(node)->cpumask); ++num_cpus; } } diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index 310d88a82abe..2a39bbeb45b0 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -51,6 +51,7 @@ uint64_t nlm_io_base; struct nlm_soc_info nlm_nodes[NLM_NR_NODES]; cpumask_t nlm_cpumask = CPU_MASK_CPU0; unsigned int nlm_threads_per_core; +unsigned int xlp_cores_per_node; static void nlm_linux_exit(void) { @@ -154,6 +155,10 @@ void __init prom_init(void) void *reset_vec; nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE); + if (cpu_is_xlp9xx()) + xlp_cores_per_node = 32; + else + xlp_cores_per_node = 8; nlm_init_boot_cpu(); xlp_mmu_init(); nlm_node_init(0); diff --git a/arch/mips/netlogic/xlp/wakeup.c b/arch/mips/netlogic/xlp/wakeup.c index a5d6647e5fe8..bbd53f8e92db 100644 --- a/arch/mips/netlogic/xlp/wakeup.c +++ b/arch/mips/netlogic/xlp/wakeup.c @@ -165,7 +165,7 @@ static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask) nodep->coremask = 1; pr_info("Node %d - SYS/FUSE coremask %x\n", n, syscoremask); - for (core = 0; core < NLM_CORES_PER_NODE; core++) { + for (core = 0; core < nlm_cores_per_node(); core++) { /* we will be on node 0 core 0 */ if (n == 0 && core == 0) continue; @@ -175,7 +175,7 @@ static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask) continue; /* see if at least the first hw thread is enabled */ - cpu = (n * NLM_CORES_PER_NODE + core) + cpu = (n * nlm_cores_per_node() + core) * NLM_THREADS_PER_CORE; if (!cpumask_test_cpu(cpu, wakeup_mask)) continue; diff --git a/arch/mips/netlogic/xlr/wakeup.c b/arch/mips/netlogic/xlr/wakeup.c index 9fb81fa6272a..ec60e7169389 100644 --- a/arch/mips/netlogic/xlr/wakeup.c +++ b/arch/mips/netlogic/xlr/wakeup.c @@ -70,7 +70,7 @@ int xlr_wakeup_secondary_cpus(void) /* Fill up the coremask early */ nodep->coremask = 1; - for (i = 1; i < NLM_CORES_PER_NODE; i++) { + for (i = 1; i < nlm_cores_per_node(); i++) { for (j = 1000000; j > 0; j--) { if (cpu_ready[i * NLM_THREADS_PER_CORE]) break; diff --git a/arch/mips/pci/msi-xlp.c b/arch/mips/pci/msi-xlp.c index 66a244a73a82..afd8405e0188 100644 --- a/arch/mips/pci/msi-xlp.c +++ b/arch/mips/pci/msi-xlp.c @@ -280,7 +280,7 @@ static int xlp_setup_msi(uint64_t lnkbase, int node, int link, irt = PIC_IRT_PCIE_LINK_INDEX(link); nlm_setup_pic_irq(node, lirq, lirq, irt); nlm_pic_init_irt(nlm_get_node(node)->picbase, irt, lirq, - node * NLM_CPUS_PER_NODE, 1 /*en */); + node * nlm_threads_per_node(), 1 /*en */); } /* allocate a MSI vec, and tell the bridge about it */ @@ -443,7 +443,7 @@ void __init xlp_init_node_msi_irqs(int node, int link) msixvec = link * XLP_MSIXVEC_PER_LINK + i; irt = PIC_IRT_PCIE_MSIX_INDEX(msixvec); nlm_pic_init_irt(nodep->picbase, irt, PIC_PCIE_MSIX_IRQ(link), - node * NLM_CPUS_PER_NODE, 1 /* enable */); + node * nlm_threads_per_node(), 1 /* enable */); /* Initialize MSI-X extended irq space for the link */ irq = nlm_irq_to_xirq(node, nlm_link_msixirq(link, i)); -- 2.45.2