diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_mds.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/smp.c | 21 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/coredump.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/vio.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/dlpar.c | 18 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 28 |
6 files changed, 44 insertions, 30 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 21f61b8c445..cc29c0f5300 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -338,7 +338,8 @@ static void __init mpc85xx_mds_pic_init(void) } mpic = mpic_alloc(np, r.start, - MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN | + MPIC_BROKEN_FRR_NIRQS, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); of_node_put(np); diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index 04160a4cc69..a15f582300d 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -46,6 +46,7 @@ smp_85xx_kick_cpu(int nr) __iomem u32 *bptr_vaddr; struct device_node *np; int n = 0; + int ioremappable; WARN_ON (nr < 0 || nr >= NR_CPUS); @@ -59,21 +60,37 @@ smp_85xx_kick_cpu(int nr) return; } + /* + * A secondary core could be in a spinloop in the bootpage + * (0xfffff000), somewhere in highmem, or somewhere in lowmem. + * The bootpage and highmem can be accessed via ioremap(), but + * we need to directly access the spinloop if its in lowmem. + */ + ioremappable = *cpu_rel_addr > virt_to_phys(high_memory); + /* Map the spin table */ - bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY); + if (ioremappable) + bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY); + else + bptr_vaddr = phys_to_virt(*cpu_rel_addr); local_irq_save(flags); out_be32(bptr_vaddr + BOOT_ENTRY_PIR, nr); out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start)); + if (!ioremappable) + flush_dcache_range((ulong)bptr_vaddr, + (ulong)(bptr_vaddr + SIZE_BOOT_ENTRY)); + /* Wait a bit for the CPU to ack. */ while ((__secondary_hold_acknowledge != nr) && (++n < 1000)) mdelay(1); local_irq_restore(flags); - iounmap(bptr_vaddr); + if (ioremappable) + iounmap(bptr_vaddr); pr_debug("waited %d msecs for CPU #%d.\n", n, nr); } diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c index c4d4a19235e..eea120229cd 100644 --- a/arch/powerpc/platforms/cell/spufs/coredump.c +++ b/arch/powerpc/platforms/cell/spufs/coredump.c @@ -54,7 +54,7 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer, */ static int spufs_dump_write(struct file *file, const void *addr, int nr, loff_t *foffset) { - unsigned long limit = current->signal->rlim[RLIMIT_CORE].rlim_cur; + unsigned long limit = rlimit(RLIMIT_CORE); ssize_t written; if (*foffset + nr > limit) diff --git a/arch/powerpc/platforms/iseries/vio.c b/arch/powerpc/platforms/iseries/vio.c index 657b72f6849..2aa8b5631be 100644 --- a/arch/powerpc/platforms/iseries/vio.c +++ b/arch/powerpc/platforms/iseries/vio.c @@ -474,6 +474,8 @@ static void __init get_viotape_info(struct device_node *vio_root) struct vio_waitevent we; int ret; + init_completion(&we.com); + ret = viopath_open(viopath_hostLp, viomajorsubtype_tape, 2); if (ret) { printk(KERN_WARNING "get_viotape_info: " diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index 67b7a10f9fc..37bce52526d 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -236,7 +236,9 @@ static struct device_node *derive_parent(const char *path) int dlpar_attach_node(struct device_node *dn) { +#ifdef CONFIG_PROC_DEVICETREE struct proc_dir_entry *ent; +#endif int rc; of_node_set_flag(dn, OF_DYNAMIC); @@ -267,10 +269,10 @@ int dlpar_attach_node(struct device_node *dn) int dlpar_detach_node(struct device_node *dn) { +#ifdef CONFIG_PROC_DEVICETREE struct device_node *parent = dn->parent; struct property *prop = dn->properties; -#ifdef CONFIG_PROC_DEVICETREE while (prop) { remove_proc_entry(prop->name, dn->pde); prop = prop->next; @@ -344,20 +346,6 @@ int dlpar_release_drc(u32 drc_index) #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE -static DEFINE_MUTEX(pseries_cpu_hotplug_mutex); - -void cpu_hotplug_driver_lock(void) -__acquires(pseries_cpu_hotplug_mutex) -{ - mutex_lock(&pseries_cpu_hotplug_mutex); -} - -void cpu_hotplug_driver_unlock(void) -__releases(pseries_cpu_hotplug_mutex) -{ - mutex_unlock(&pseries_cpu_hotplug_mutex); -} - static int dlpar_online_cpu(struct device_node *dn) { int rc = 0; diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index b9b9e11609e..f5f79196721 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -163,14 +163,13 @@ static inline void lpar_qirr_info(int n_cpu , u8 value) /* Interface to generic irq subsystem */ #ifdef CONFIG_SMP -static int get_irq_server(unsigned int virq, unsigned int strict_check) +static int get_irq_server(unsigned int virq, cpumask_t cpumask, + unsigned int strict_check) { int server; /* For the moment only implement delivery to all cpus or one cpu */ - cpumask_t cpumask; cpumask_t tmp = CPU_MASK_NONE; - cpumask_copy(&cpumask, irq_to_desc(virq)->affinity); if (!distribute_irqs) return default_server; @@ -192,10 +191,7 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check) return default_server; } #else -static int get_irq_server(unsigned int virq, unsigned int strict_check) -{ - return default_server; -} +#define get_irq_server(virq, cpumask, strict_check) (default_server) #endif static void xics_unmask_irq(unsigned int virq) @@ -211,7 +207,7 @@ static void xics_unmask_irq(unsigned int virq) if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) return; - server = get_irq_server(virq, 0); + server = get_irq_server(virq, *(irq_to_desc(virq)->affinity), 0); call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server, DEFAULT_PRIORITY); @@ -405,7 +401,7 @@ static int xics_set_affinity(unsigned int virq, const struct cpumask *cpumask) * For the moment only implement delivery to all cpus or one cpu. * Get current irq_server for the given irq */ - irq_server = get_irq_server(virq, 1); + irq_server = get_irq_server(virq, *cpumask, 1); if (irq_server == -1) { char cpulist[128]; cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask); @@ -788,9 +784,13 @@ static void xics_set_cpu_priority(unsigned char cppr) { struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); - BUG_ON(os_cppr->index != 0); + /* + * we only really want to set the priority when there's + * just one cppr value on the stack + */ + WARN_ON(os_cppr->index != 0); - os_cppr->stack[os_cppr->index] = cppr; + os_cppr->stack[0] = cppr; if (firmware_has_feature(FW_FEATURE_LPAR)) lpar_cppr_info(cppr); @@ -825,8 +825,14 @@ void xics_setup_cpu(void) void xics_teardown_cpu(void) { + struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); int cpu = smp_processor_id(); + /* + * we have to reset the cppr index to 0 because we're + * not going to return from the IPI + */ + os_cppr->index = 0; xics_set_cpu_priority(0); /* Clear any pending IPI request */ |