diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 6 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/iommu.c | 53 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/subcore.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/system-bus.c | 10 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/dlpar.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/ibmebus.c | 16 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/mobility.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/vio.c | 75 |
8 files changed, 93 insertions, 83 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 684e886eaae4..2f629e0551e9 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -344,12 +344,18 @@ config PPC_STD_MMU_64 config PPC_RADIX_MMU bool "Radix MMU Support" depends on PPC_BOOK3S_64 + select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA default y help Enable support for the Power ISA 3.0 Radix style MMU. Currently this is only implemented by IBM Power9 CPUs, if you don't have one of them you can probably disable this. +config ARCH_ENABLE_HUGEPAGE_MIGRATION + def_bool y + depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION + + config PPC_MMU_NOHASH def_bool y depends on !PPC_STD_MMU diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 71b995bbcae0..29d4f96ed33e 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -644,32 +644,22 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg, direction, attrs); } -static int dma_fixed_dma_supported(struct device *dev, u64 mask) -{ - return mask == DMA_BIT_MASK(64); -} - -static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask); +static int dma_suported_and_switch(struct device *dev, u64 dma_mask); static const struct dma_map_ops dma_iommu_fixed_ops = { .alloc = dma_fixed_alloc_coherent, .free = dma_fixed_free_coherent, .map_sg = dma_fixed_map_sg, .unmap_sg = dma_fixed_unmap_sg, - .dma_supported = dma_fixed_dma_supported, - .set_dma_mask = dma_set_mask_and_switch, + .dma_supported = dma_suported_and_switch, .map_page = dma_fixed_map_page, .unmap_page = dma_fixed_unmap_page, + .mapping_error = dma_iommu_mapping_error, }; -static void cell_dma_dev_setup_fixed(struct device *dev); - static void cell_dma_dev_setup(struct device *dev) { - /* Order is important here, these are not mutually exclusive */ - if (get_dma_ops(dev) == &dma_iommu_fixed_ops) - cell_dma_dev_setup_fixed(dev); - else if (get_pci_dma_ops() == &dma_iommu_ops) + if (get_pci_dma_ops() == &dma_iommu_ops) set_iommu_table_base(dev, cell_get_iommu_table(dev)); else if (get_pci_dma_ops() == &dma_direct_ops) set_dma_offset(dev, cell_dma_direct_offset); @@ -956,38 +946,29 @@ out: return dev_addr; } -static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask) +static int dma_suported_and_switch(struct device *dev, u64 dma_mask) { - if (!dev->dma_mask || !dma_supported(dev, dma_mask)) - return -EIO; - if (dma_mask == DMA_BIT_MASK(64) && - cell_iommu_get_fixed_address(dev) != OF_BAD_ADDR) - { + cell_iommu_get_fixed_address(dev) != OF_BAD_ADDR) { + u64 addr = cell_iommu_get_fixed_address(dev) + + dma_iommu_fixed_base; dev_dbg(dev, "iommu: 64-bit OK, using fixed ops\n"); + dev_dbg(dev, "iommu: fixed addr = %llx\n", addr); set_dma_ops(dev, &dma_iommu_fixed_ops); - } else { + set_dma_offset(dev, addr); + return 1; + } + + if (dma_iommu_dma_supported(dev, dma_mask)) { dev_dbg(dev, "iommu: not 64-bit, using default ops\n"); set_dma_ops(dev, get_pci_dma_ops()); + cell_dma_dev_setup(dev); + return 1; } - cell_dma_dev_setup(dev); - - *dev->dma_mask = dma_mask; - return 0; } -static void cell_dma_dev_setup_fixed(struct device *dev) -{ - u64 addr; - - addr = cell_iommu_get_fixed_address(dev) + dma_iommu_fixed_base; - set_dma_offset(dev, addr); - - dev_dbg(dev, "iommu: fixed addr = %llx\n", addr); -} - static void insert_16M_pte(unsigned long addr, unsigned long *ptab, unsigned long base_pte) { @@ -1139,7 +1120,7 @@ static int __init cell_iommu_fixed_mapping_init(void) cell_iommu_setup_window(iommu, np, dbase, dsize, 0); } - dma_iommu_ops.set_dma_mask = dma_set_mask_and_switch; + dma_iommu_ops.dma_supported = dma_suported_and_switch; set_pci_dma_ops(&dma_iommu_ops); return 0; diff --git a/arch/powerpc/platforms/powernv/subcore.c b/arch/powerpc/platforms/powernv/subcore.c index 3a4f85c0188f..596ae2e98040 100644 --- a/arch/powerpc/platforms/powernv/subcore.c +++ b/arch/powerpc/platforms/powernv/subcore.c @@ -349,7 +349,7 @@ static int set_subcores_per_core(int new_mode) state->master = 0; } - get_online_cpus(); + cpus_read_lock(); /* This cpu will update the globals before exiting stop machine */ this_cpu_ptr(&split_state)->master = 1; @@ -357,9 +357,10 @@ static int set_subcores_per_core(int new_mode) /* Ensure state is consistent before we call the other cpus */ mb(); - stop_machine(cpu_update_split_mode, &new_mode, cpu_online_mask); + stop_machine_cpuslocked(cpu_update_split_mode, &new_mode, + cpu_online_mask); - put_online_cpus(); + cpus_read_unlock(); return 0; } diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 2d2e5f80a3d3..5cc35d6b94b6 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -471,11 +471,13 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a, return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; } +static DEVICE_ATTR_RO(modalias); -static struct device_attribute ps3_system_bus_dev_attrs[] = { - __ATTR_RO(modalias), - __ATTR_NULL, +static struct attribute *ps3_system_bus_dev_attrs[] = { + &dev_attr_modalias.attr, + NULL, }; +ATTRIBUTE_GROUPS(ps3_system_bus_dev); struct bus_type ps3_system_bus_type = { .name = "ps3_system_bus", @@ -484,7 +486,7 @@ struct bus_type ps3_system_bus_type = { .probe = ps3_system_bus_probe, .remove = ps3_system_bus_remove, .shutdown = ps3_system_bus_shutdown, - .dev_attrs = ps3_system_bus_dev_attrs, + .dev_groups = ps3_system_bus_dev_groups, }; static int __init ps3_system_bus_init(void) diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index bda18d8e1674..39187696ee74 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -588,7 +588,7 @@ static ssize_t dlpar_show(struct class *class, struct class_attribute *attr, return sprintf(buf, "%s\n", "memory,cpu"); } -static CLASS_ATTR(dlpar, S_IWUSR | S_IRUSR, dlpar_show, dlpar_store); +static CLASS_ATTR_RW(dlpar); static int __init pseries_dlpar_init(void) { diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c index b363e439ddb9..52146b1356d2 100644 --- a/arch/powerpc/platforms/pseries/ibmebus.c +++ b/arch/powerpc/platforms/pseries/ibmebus.c @@ -397,6 +397,7 @@ static ssize_t devspec_show(struct device *dev, ofdev = to_platform_device(dev); return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name); } +static DEVICE_ATTR_RO(devspec); static ssize_t name_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -406,19 +407,22 @@ static ssize_t name_show(struct device *dev, ofdev = to_platform_device(dev); return sprintf(buf, "%s\n", ofdev->dev.of_node->name); } +static DEVICE_ATTR_RO(name); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { return of_device_modalias(dev, buf, PAGE_SIZE); } +static DEVICE_ATTR_RO(modalias); -static struct device_attribute ibmebus_bus_device_attrs[] = { - __ATTR_RO(devspec), - __ATTR_RO(name), - __ATTR_RO(modalias), - __ATTR_NULL +static struct attribute *ibmebus_bus_device_attrs[] = { + &dev_attr_devspec.attr, + &dev_attr_name.attr, + &dev_attr_modalias.attr, + NULL, }; +ATTRIBUTE_GROUPS(ibmebus_bus_device); struct bus_type ibmebus_bus_type = { .name = "ibmebus", @@ -428,7 +432,7 @@ struct bus_type ibmebus_bus_type = { .probe = ibmebus_bus_device_probe, .remove = ibmebus_bus_device_remove, .shutdown = ibmebus_bus_device_shutdown, - .dev_attrs = ibmebus_bus_device_attrs, + .dev_groups = ibmebus_bus_device_groups, }; EXPORT_SYMBOL(ibmebus_bus_type); diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c index 5a0c7ba429ce..2da4851eff99 100644 --- a/arch/powerpc/platforms/pseries/mobility.c +++ b/arch/powerpc/platforms/pseries/mobility.c @@ -349,8 +349,9 @@ void post_mobility_fixup(void) return; } -static ssize_t migrate_store(struct class *class, struct class_attribute *attr, - const char *buf, size_t count) +static ssize_t migration_store(struct class *class, + struct class_attribute *attr, const char *buf, + size_t count) { u64 streamid; int rc; @@ -380,7 +381,7 @@ static ssize_t migrate_store(struct class *class, struct class_attribute *attr, */ #define MIGRATION_API_VERSION 1 -static CLASS_ATTR(migration, S_IWUSR, NULL, migrate_store); +static CLASS_ATTR_WO(migration); static CLASS_ATTR_STRING(api_version, S_IRUGO, __stringify(MIGRATION_API_VERSION)); static int __init mobility_sysfs_init(void) diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c index 28b09fd797ec..8a47f168476b 100644 --- a/arch/powerpc/platforms/pseries/vio.c +++ b/arch/powerpc/platforms/pseries/vio.c @@ -519,7 +519,7 @@ static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page, { struct vio_dev *viodev = to_vio_dev(dev); struct iommu_table *tbl; - dma_addr_t ret = DMA_ERROR_CODE; + dma_addr_t ret = IOMMU_MAPPING_ERROR; tbl = get_iommu_table_base(dev); if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl)))) { @@ -625,6 +625,7 @@ static const struct dma_map_ops vio_dma_mapping_ops = { .unmap_page = vio_dma_iommu_unmap_page, .dma_supported = vio_dma_iommu_dma_supported, .get_required_mask = vio_dma_get_required_mask, + .mapping_error = dma_iommu_mapping_error, }; /** @@ -948,21 +949,21 @@ static void vio_cmo_bus_init(void) /* sysfs device functions and data structures for CMO */ #define viodev_cmo_rd_attr(name) \ -static ssize_t viodev_cmo_##name##_show(struct device *dev, \ +static ssize_t cmo_##name##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ return sprintf(buf, "%lu\n", to_vio_dev(dev)->cmo.name); \ } -static ssize_t viodev_cmo_allocs_failed_show(struct device *dev, +static ssize_t cmo_allocs_failed_show(struct device *dev, struct device_attribute *attr, char *buf) { struct vio_dev *viodev = to_vio_dev(dev); return sprintf(buf, "%d\n", atomic_read(&viodev->cmo.allocs_failed)); } -static ssize_t viodev_cmo_allocs_failed_reset(struct device *dev, +static ssize_t cmo_allocs_failed_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct vio_dev *viodev = to_vio_dev(dev); @@ -970,7 +971,7 @@ static ssize_t viodev_cmo_allocs_failed_reset(struct device *dev, return count; } -static ssize_t viodev_cmo_desired_set(struct device *dev, +static ssize_t cmo_desired_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct vio_dev *viodev = to_vio_dev(dev); @@ -993,27 +994,37 @@ static ssize_t name_show(struct device *, struct device_attribute *, char *); static ssize_t devspec_show(struct device *, struct device_attribute *, char *); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf); -static struct device_attribute vio_cmo_dev_attrs[] = { - __ATTR_RO(name), - __ATTR_RO(devspec), - __ATTR_RO(modalias), - __ATTR(cmo_desired, S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH, - viodev_cmo_desired_show, viodev_cmo_desired_set), - __ATTR(cmo_entitled, S_IRUGO, viodev_cmo_entitled_show, NULL), - __ATTR(cmo_allocated, S_IRUGO, viodev_cmo_allocated_show, NULL), - __ATTR(cmo_allocs_failed, S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH, - viodev_cmo_allocs_failed_show, viodev_cmo_allocs_failed_reset), - __ATTR_NULL + +static struct device_attribute dev_attr_name; +static struct device_attribute dev_attr_devspec; +static struct device_attribute dev_attr_modalias; + +static DEVICE_ATTR_RO(cmo_entitled); +static DEVICE_ATTR_RO(cmo_allocated); +static DEVICE_ATTR_RW(cmo_desired); +static DEVICE_ATTR_RW(cmo_allocs_failed); + +static struct attribute *vio_cmo_dev_attrs[] = { + &dev_attr_name.attr, + &dev_attr_devspec.attr, + &dev_attr_modalias.attr, + &dev_attr_cmo_entitled.attr, + &dev_attr_cmo_allocated.attr, + &dev_attr_cmo_desired.attr, + &dev_attr_cmo_allocs_failed.attr, + NULL, }; +ATTRIBUTE_GROUPS(vio_cmo_dev); /* sysfs bus functions and data structures for CMO */ #define viobus_cmo_rd_attr(name) \ -static ssize_t cmo_##name##_show(struct bus_type *bt, char *buf) \ +static ssize_t cmo_bus_##name##_show(struct bus_type *bt, char *buf) \ { \ return sprintf(buf, "%lu\n", vio_cmo.name); \ } \ -static BUS_ATTR_RO(cmo_##name) +static struct bus_attribute bus_attr_cmo_bus_##name = \ + __ATTR(cmo_##name, S_IRUGO, cmo_bus_##name##_show, NULL) #define viobus_cmo_pool_rd_attr(name, var) \ static ssize_t \ @@ -1051,11 +1062,11 @@ static ssize_t cmo_high_store(struct bus_type *bt, const char *buf, static BUS_ATTR_RW(cmo_high); static struct attribute *vio_bus_attrs[] = { - &bus_attr_cmo_entitled.attr, - &bus_attr_cmo_spare.attr, - &bus_attr_cmo_min.attr, - &bus_attr_cmo_desired.attr, - &bus_attr_cmo_curr.attr, + &bus_attr_cmo_bus_entitled.attr, + &bus_attr_cmo_bus_spare.attr, + &bus_attr_cmo_bus_min.attr, + &bus_attr_cmo_bus_desired.attr, + &bus_attr_cmo_bus_curr.attr, &bus_attr_cmo_high.attr, &bus_attr_cmo_reserve_size.attr, &bus_attr_cmo_excess_size.attr, @@ -1066,7 +1077,7 @@ ATTRIBUTE_GROUPS(vio_bus); static void vio_cmo_sysfs_init(void) { - vio_bus_type.dev_attrs = vio_cmo_dev_attrs; + vio_bus_type.dev_groups = vio_cmo_dev_groups; vio_bus_type.bus_groups = vio_bus_groups; } #else /* CONFIG_PPC_SMLPAR */ @@ -1537,6 +1548,7 @@ static ssize_t name_show(struct device *dev, { return sprintf(buf, "%s\n", to_vio_dev(dev)->name); } +static DEVICE_ATTR_RO(name); static ssize_t devspec_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1545,6 +1557,7 @@ static ssize_t devspec_show(struct device *dev, return sprintf(buf, "%s\n", of_node_full_name(of_node)); } +static DEVICE_ATTR_RO(devspec); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1566,13 +1579,15 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, return sprintf(buf, "vio:T%sS%s\n", vio_dev->type, cp); } +static DEVICE_ATTR_RO(modalias); -static struct device_attribute vio_dev_attrs[] = { - __ATTR_RO(name), - __ATTR_RO(devspec), - __ATTR_RO(modalias), - __ATTR_NULL +static struct attribute *vio_dev_attrs[] = { + &dev_attr_name.attr, + &dev_attr_devspec.attr, + &dev_attr_modalias.attr, + NULL, }; +ATTRIBUTE_GROUPS(vio_dev); void vio_unregister_device(struct vio_dev *viodev) { @@ -1608,7 +1623,7 @@ static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env) struct bus_type vio_bus_type = { .name = "vio", - .dev_attrs = vio_dev_attrs, + .dev_groups = vio_dev_groups, .uevent = vio_hotplug, .match = vio_bus_match, .probe = vio_bus_probe, |