24 files changed, 562 insertions, 469 deletions

diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index f2737a005afc..9a42ecec5647 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -21,6 +21,6 @@ $(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
 $(obj)/compressed/vmlinux: FORCE
         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 
-install: $(CONFIGURE) $(obj)/image
-        sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/image \
+install: $(CONFIGURE) $(obj)/bzImage
+        sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
               System.map "$(INSTALL_PATH)"
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index 9b69c0befdca..4e63f1a13600 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -7,6 +7,8 @@
 #ifndef __ASM_CTL_REG_H
 #define __ASM_CTL_REG_H
 
+#include <linux/bug.h>
+
 #ifdef CONFIG_64BIT
 # define __CTL_LOAD     "lctlg"
 # define __CTL_STORE    "stctg"
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index dc9200ca32ed..67026300c88e 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -111,18 +111,7 @@ struct scm_driver {
 int scm_driver_register(struct scm_driver *scmdrv);
 void scm_driver_unregister(struct scm_driver *scmdrv);
 
-int scm_start_aob(struct aob *aob);
+int eadm_start_aob(struct aob *aob);
 void scm_irq_handler(struct aob *aob, int error);
 
-struct eadm_ops {
-        int (*eadm_start) (struct aob *aob);
-        struct module *owner;
-};
-
-int scm_get_ref(void);
-void scm_put_ref(void);
-
-void register_eadm_ops(struct eadm_ops *ops);
-void unregister_eadm_ops(struct eadm_ops *ops);
-
 #endif /* _ASM_S390_EADM_H */
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 1cc185da9d38..c129ab2ac731 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -63,9 +63,10 @@ enum zpci_state {
 };
 
 struct zpci_bar_struct {
+        struct resource *res;           /* bus resource */
         u32             val;            /* bar start & 3 flag bits */
-        u8              size;           /* order 2 exponent */
         u16             map_idx;        /* index into bar mapping array */
+        u8              size;           /* order 2 exponent */
 };
 
 /* Private data per function */
@@ -97,6 +98,7 @@ struct zpci_dev {
         unsigned long   iommu_pages;
         unsigned int    next_bit;
 
+        char res_name[16];
         struct zpci_bar_struct bars[PCI_BAR_COUNT];
 
         u64             start_dma;      /* Start of available DMA addresses */
@@ -122,12 +124,10 @@ static inline bool zdev_enabled(struct zpci_dev *zdev)
   Prototypes
 ----------------------------------------------------------------------------- */
 /* Base stuff */
-struct zpci_dev *zpci_alloc_device(void);
 int zpci_create_device(struct zpci_dev *);
 int zpci_enable_device(struct zpci_dev *);
 int zpci_disable_device(struct zpci_dev *);
 void zpci_stop_device(struct zpci_dev *);
-void zpci_free_device(struct zpci_dev *);
 int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64);
 int zpci_unregister_ioat(struct zpci_dev *, u8);
 
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 7dc7f9c63b65..30ef748bc161 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -43,7 +43,6 @@ struct sclp_cpu_info {
 int sclp_get_cpu_info(struct sclp_cpu_info *info);
 int sclp_cpu_configure(u8 cpu);
 int sclp_cpu_deconfigure(u8 cpu);
-void sclp_facilities_detect(void);
 unsigned long long sclp_get_rnmax(void);
 unsigned long long sclp_get_rzm(void);
 int sclp_sdias_blk_count(void);
@@ -57,5 +56,7 @@ bool sclp_has_vt220(void);
 int sclp_pci_configure(u32 fid);
 int sclp_pci_deconfigure(u32 fid);
 int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode);
+unsigned long sclp_get_hsa_size(void);
+void sclp_early_detect(void);
 
 #endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index df802ee14af6..94cfbe442f12 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -107,9 +107,6 @@ void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr,
 #define MACHINE_HAS_RRBM        (S390_lowcore.machine_flags & MACHINE_FLAG_RRBM)
 #endif /* CONFIG_64BIT */
 
-#define ZFCPDUMP_HSA_SIZE       (32UL<<20)
-#define ZFCPDUMP_HSA_SIZE_MAX   (64UL<<20)
-
 /*
  * Console mode. Override with conmode=
  */
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index f45b2ab0cb81..d7658c4b2ed5 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -95,7 +95,7 @@ static void *elfcorehdr_newmem;
 /*
  * Copy one page from zfcpdump "oldmem"
  *
- * For pages below ZFCPDUMP_HSA_SIZE memory from the HSA is copied. Otherwise
+ * For pages below HSA size memory from the HSA is copied. Otherwise
  * real memory copy is used.
  */
 static ssize_t copy_oldmem_page_zfcpdump(char *buf, size_t csize,
@@ -103,7 +103,7 @@ static ssize_t copy_oldmem_page_zfcpdump(char *buf, size_t csize,
 {
         int rc;
 
-        if (src < ZFCPDUMP_HSA_SIZE) {
+        if (src < sclp_get_hsa_size()) {
                 rc = memcpy_hsa(buf, src, csize, userbuf);
         } else {
                 if (userbuf)
@@ -188,18 +188,19 @@ static int remap_oldmem_pfn_range_kdump(struct vm_area_struct *vma,
 /*
  * Remap "oldmem" for zfcpdump
  *
- * We only map available memory above ZFCPDUMP_HSA_SIZE. Memory below
- * ZFCPDUMP_HSA_SIZE is read on demand using the copy_oldmem_page() function.
+ * We only map available memory above HSA size. Memory below HSA size
+ * is read on demand using the copy_oldmem_page() function.
  */
 static int remap_oldmem_pfn_range_zfcpdump(struct vm_area_struct *vma,
                                            unsigned long from,
                                            unsigned long pfn,
                                            unsigned long size, pgprot_t prot)
 {
+        unsigned long hsa_end = sclp_get_hsa_size();
         unsigned long size_hsa;
 
-        if (pfn < ZFCPDUMP_HSA_SIZE >> PAGE_SHIFT) {
-                size_hsa = min(size, ZFCPDUMP_HSA_SIZE - (pfn << PAGE_SHIFT));
+        if (pfn < hsa_end >> PAGE_SHIFT) {
+                size_hsa = min(size, hsa_end - (pfn << PAGE_SHIFT));
                 if (size == size_hsa)
                         return 0;
                 size -= size_hsa;
@@ -238,9 +239,9 @@ int copy_from_oldmem(void *dest, void *src, size_t count)
                                 return rc;
                 }
         } else {
-                if ((unsigned long) src < ZFCPDUMP_HSA_SIZE) {
-                        copied = min(count,
-                                     ZFCPDUMP_HSA_SIZE - (unsigned long) src);
+                unsigned long hsa_end = sclp_get_hsa_size();
+                if ((unsigned long) src < hsa_end) {
+                        copied = min(count, hsa_end - (unsigned long) src);
                         rc = memcpy_hsa(dest, (unsigned long) src, copied, 0);
                         if (rc)
                                 return rc;
@@ -580,6 +581,9 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
         /* If elfcorehdr= has been passed via cmdline, we use that one */
         if (elfcorehdr_addr != ELFCORE_ADDR_MAX)
                 return 0;
+        /* If we cannot get HSA size for zfcpdump return error */
+        if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp_get_hsa_size())
+                return -ENODEV;
         mem_chunk_cnt = get_mem_chunk_cnt();
 
         alloc_size = 0x1000 + get_cpu_cnt() * 0x300 +
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 96543ac400a7..fca20b5fe79e 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -483,7 +483,7 @@ void __init startup_init(void)
         detect_diag44();
         detect_machine_facilities();
         setup_topology();
-        sclp_facilities_detect();
+        sclp_early_detect();
 #ifdef CONFIG_DYNAMIC_FTRACE
         S390_lowcore.ftrace_func = (unsigned long)ftrace_caller;
 #endif
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index ffe1c53264a7..4444875266ee 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -471,8 +471,9 @@ static void __init setup_memory_end(void)
 
 
 #ifdef CONFIG_ZFCPDUMP
-        if (ipl_info.type == IPL_TYPE_FCP_DUMP && !OLDMEM_BASE) {
-                memory_end = ZFCPDUMP_HSA_SIZE;
+        if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
+            !OLDMEM_BASE && sclp_get_hsa_size()) {
+                memory_end = sclp_get_hsa_size();
                 memory_end_set = 1;
         }
 #endif
@@ -586,7 +587,7 @@ static unsigned long __init find_crash_base(unsigned long crash_size,
                 crash_base = (chunk->addr + chunk->size) - crash_size;
                 if (crash_base < crash_size)
                         continue;
-                if (crash_base < ZFCPDUMP_HSA_SIZE_MAX)
+                if (crash_base < sclp_get_hsa_size())
                         continue;
                 if (crash_base < (unsigned long) INITRD_START + INITRD_SIZE)
                         continue;
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 0c9a17780e4b..bf7c73d71eef 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -530,20 +530,6 @@ static void zpci_unmap_resources(struct zpci_dev *zdev)
         }
 }
 
-struct zpci_dev *zpci_alloc_device(void)
-{
-        struct zpci_dev *zdev;
-
-        /* Alloc memory for our private pci device data */
-        zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
-        return zdev ? : ERR_PTR(-ENOMEM);
-}
-
-void zpci_free_device(struct zpci_dev *zdev)
-{
-        kfree(zdev);
-}
-
 int pcibios_add_platform_entries(struct pci_dev *pdev)
 {
         return zpci_sysfs_add_device(&pdev->dev);
@@ -579,37 +565,6 @@ static void zpci_irq_exit(void)
         unregister_adapter_interrupt(&zpci_airq);
 }
 
-static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned long size,
-                                                unsigned long flags, int domain)
-{
-        struct resource *r;
-        char *name;
-        int rc;
-
-        r = kzalloc(sizeof(*r), GFP_KERNEL);
-        if (!r)
-                return ERR_PTR(-ENOMEM);
-        r->start = start;
-        r->end = r->start + size - 1;
-        r->flags = flags;
-        r->parent = &iomem_resource;
-        name = kmalloc(18, GFP_KERNEL);
-        if (!name) {
-                kfree(r);
-                return ERR_PTR(-ENOMEM);
-        }
-        sprintf(name, "PCI Bus: %04x:%02x", domain, ZPCI_BUS_NR);
-        r->name = name;
-
-        rc = request_resource(&iomem_resource, r);
-        if (rc) {
-                kfree(r->name);
-                kfree(r);
-                return ERR_PTR(-ENOMEM);
-        }
-        return r;
-}
-
 static int zpci_alloc_iomap(struct zpci_dev *zdev)
 {
         int entry;
@@ -633,6 +588,82 @@ static void zpci_free_iomap(struct zpci_dev *zdev, int entry)
         spin_unlock(&zpci_iomap_lock);
 }
 
+static struct resource *__alloc_res(struct zpci_dev *zdev, unsigned long start,
+                                    unsigned long size, unsigned long flags)
+{
+        struct resource *r;
+
+        r = kzalloc(sizeof(*r), GFP_KERNEL);
+        if (!r)
+                return NULL;
+
+        r->start = start;
+        r->end = r->start + size - 1;
+        r->flags = flags;
+        r->name = zdev->res_name;
+
+        if (request_resource(&iomem_resource, r)) {
+                kfree(r);
+                return NULL;
+        }
+        return r;
+}
+
+static int zpci_setup_bus_resources(struct zpci_dev *zdev,
+                                    struct list_head *resources)
+{
+        unsigned long addr, size, flags;
+        struct resource *res;
+        int i, entry;
+
+        snprintf(zdev->res_name, sizeof(zdev->res_name),
+                 "PCI Bus %04x:%02x", zdev->domain, ZPCI_BUS_NR);
+
+        for (i = 0; i < PCI_BAR_COUNT; i++) {
+                if (!zdev->bars[i].size)
+                        continue;
+                entry = zpci_alloc_iomap(zdev);
+                if (entry < 0)
+                        return entry;
+                zdev->bars[i].map_idx = entry;
+
+                /* only MMIO is supported */
+                flags = IORESOURCE_MEM;
+                if (zdev->bars[i].val & 8)
+                        flags |= IORESOURCE_PREFETCH;
+                if (zdev->bars[i].val & 4)
+                        flags |= IORESOURCE_MEM_64;
+
+                addr = ZPCI_IOMAP_ADDR_BASE + ((u64) entry << 48);
+
+                size = 1UL << zdev->bars[i].size;
+
+                res = __alloc_res(zdev, addr, size, flags);
+                if (!res) {
+                        zpci_free_iomap(zdev, entry);
+                        return -ENOMEM;
+                }
+                zdev->bars[i].res = res;
+                pci_add_resource(resources, res);
+        }
+
+        return 0;
+}
+
+static void zpci_cleanup_bus_resources(struct zpci_dev *zdev)
+{
+        int i;
+
+        for (i = 0; i < PCI_BAR_COUNT; i++) {
+                if (!zdev->bars[i].size)
+                        continue;
+
+                zpci_free_iomap(zdev, zdev->bars[i].map_idx);
+                release_resource(zdev->bars[i].res);
+                kfree(zdev->bars[i].res);
+        }
+}
+
 int pcibios_add_device(struct pci_dev *pdev)
 {
         struct zpci_dev *zdev = get_zdev(pdev);
@@ -729,52 +760,6 @@ struct dev_pm_ops pcibios_pm_ops = {
 };
 #endif /* CONFIG_HIBERNATE_CALLBACKS */
 
-static int zpci_scan_bus(struct zpci_dev *zdev)
-{
-        struct resource *res;
-        LIST_HEAD(resources);
-        int i;
-
-        /* allocate mapping entry for each used bar */
-        for (i = 0; i < PCI_BAR_COUNT; i++) {
-                unsigned long addr, size, flags;
-                int entry;
-
-                if (!zdev->bars[i].size)
-                        continue;
-                entry = zpci_alloc_iomap(zdev);
-                if (entry < 0)
-                        return entry;
-                zdev->bars[i].map_idx = entry;
-
-                /* only MMIO is supported */
-                flags = IORESOURCE_MEM;
-                if (zdev->bars[i].val & 8)
-                        flags |= IORESOURCE_PREFETCH;
-                if (zdev->bars[i].val & 4)
-                        flags |= IORESOURCE_MEM_64;
-
-                addr = ZPCI_IOMAP_ADDR_BASE + ((u64) entry << 48);
-
-                size = 1UL << zdev->bars[i].size;
-
-                res = zpci_alloc_bus_resource(addr, size, flags, zdev->domain);
-                if (IS_ERR(res)) {
-                        zpci_free_iomap(zdev, entry);
-                        return PTR_ERR(res);
-                }
-                pci_add_resource(&resources, res);
-        }
-
-        zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops,
-                                      zdev, &resources);
-        if (!zdev->bus)
-                return -EIO;
-
-        zdev->bus->max_bus_speed = zdev->max_bus_speed;
-        return 0;
-}
-
 static int zpci_alloc_domain(struct zpci_dev *zdev)
 {
         spin_lock(&zpci_domain_lock);
@@ -795,6 +780,41 @@ static void zpci_free_domain(struct zpci_dev *zdev)
         spin_unlock(&zpci_domain_lock);
 }
 
+void pcibios_remove_bus(struct pci_bus *bus)
+{
+        struct zpci_dev *zdev = get_zdev_by_bus(bus);
+
+        zpci_exit_slot(zdev);
+        zpci_cleanup_bus_resources(zdev);
+        zpci_free_domain(zdev);
+
+        spin_lock(&zpci_list_lock);
+        list_del(&zdev->entry);
+        spin_unlock(&zpci_list_lock);
+
+        kfree(zdev);
+}
+
+static int zpci_scan_bus(struct zpci_dev *zdev)
+{
+        LIST_HEAD(resources);
+        int ret;
+
+        ret = zpci_setup_bus_resources(zdev, &resources);
+        if (ret)
+                return ret;
+
+        zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops,
+                                      zdev, &resources);
+        if (!zdev->bus) {
+                zpci_cleanup_bus_resources(zdev);
+                return -EIO;
+        }
+
+        zdev->bus->max_bus_speed = zdev->max_bus_speed;
+        return 0;
+}
+
 int zpci_enable_device(struct zpci_dev *zdev)
 {
         int rc;
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 84147984224a..c747394029ee 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -155,9 +155,9 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
         int rc;
 
         zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured);
-        zdev = zpci_alloc_device();
-        if (IS_ERR(zdev))
-                return PTR_ERR(zdev);
+        zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
+        if (!zdev)
+                return -ENOMEM;
 
         zdev->fh = fh;
         zdev->fid = fid;
@@ -178,7 +178,7 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
         return 0;
 
 error:
-        zpci_free_device(zdev);
+        kfree(zdev);
         return rc;
 }
 
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index 278e671ec9ac..800f064b0da7 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <asm/pci_debug.h>
+#include <asm/sclp.h>
 
 /* Content Code Description for PCI Function Error */
 struct zpci_ccdf_err {
@@ -42,10 +43,27 @@ struct zpci_ccdf_avail {
         u16 pec;                        /* PCI event code */
 } __packed;
 
-static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
+void zpci_event_error(void *data)
 {
+        struct zpci_ccdf_err *ccdf = data;
+        struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
+
+        zpci_err("error CCDF:\n");
+        zpci_err_hex(ccdf, sizeof(*ccdf));
+
+        if (!zdev)
+                return;
+
+        pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n",
+               pci_name(zdev->pdev), ccdf->pec, ccdf->fid);
+}
+
+void zpci_event_availability(void *data)
+{
+        struct zpci_ccdf_avail *ccdf = data;
         struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
         struct pci_dev *pdev = zdev ? zdev->pdev : NULL;
+        int ret;
 
         pr_info("%s: Event 0x%x reconfigured PCI function 0x%x\n",
                 pdev ? pci_name(pdev) : "n/a", ccdf->pec, ccdf->fid);
@@ -53,36 +71,47 @@ static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
         zpci_err_hex(ccdf, sizeof(*ccdf));
 
         switch (ccdf->pec) {
-        case 0x0301:
-                zpci_enable_device(zdev);
+        case 0x0301: /* Standby -> Configured */
+                if (!zdev || zdev->state == ZPCI_FN_STATE_CONFIGURED)
+                        break;
+                zdev->state = ZPCI_FN_STATE_CONFIGURED;
+                ret = zpci_enable_device(zdev);
+                if (ret)
+                        break;
+                pci_rescan_bus(zdev->bus);
                 break;
-        case 0x0302:
+        case 0x0302: /* Reserved -> Standby */
                 clp_add_pci_device(ccdf->fid, ccdf->fh, 0);
                 break;
-        case 0x0306:
+        case 0x0303: /* Deconfiguration requested */
+                if (pdev)
+                        pci_stop_and_remove_bus_device(pdev);
+
+                ret = zpci_disable_device(zdev);
+                if (ret)
+                        break;
+
+                ret = sclp_pci_deconfigure(zdev->fid);
+                zpci_dbg(3, "deconf fid:%x, rc:%d\n", zdev->fid, ret);
+                if (!ret)
+                        zdev->state = ZPCI_FN_STATE_STANDBY;
+
+                break;
+        case 0x0304: /* Configured -> Standby */
+                if (pdev)
+                        pci_stop_and_remove_bus_device(pdev);
+
+                zpci_disable_device(zdev);
+                zdev->state = ZPCI_FN_STATE_STANDBY;
+                break;
+        case 0x0306: /* 0x308 or 0x302 for multiple devices */
                 clp_rescan_pci_devices();
                 break;
+        case 0x0308: /* Standby -> Reserved */
+                pci_stop_root_bus(zdev->bus);
+                pci_remove_root_bus(zdev->bus);
+                break;
         default:
                 break;
         }
 }
-
-void zpci_event_error(void *data)
-{
-        struct zpci_ccdf_err *ccdf = data;
-        struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
-
-        zpci_err("error CCDF:\n");
-        zpci_err_hex(ccdf, sizeof(*ccdf));
-
-        if (!zdev)
-                return;
-
-        pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n",
-               pci_name(zdev->pdev), ccdf->pec, ccdf->fid);
-}
-
-void zpci_event_availability(void *data)
-{
-        zpci_event_log_avail(data);
-}
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index 548209a9c43c..d0ab5019d885 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -118,22 +118,6 @@ static void scm_request_done(struct scm_request *scmrq)
         spin_unlock_irqrestore(&list_lock, flags);
 }
 
-static int scm_open(struct block_device *blkdev, fmode_t mode)
-{
-        return scm_get_ref();
-}
-
-static void scm_release(struct gendisk *gendisk, fmode_t mode)
-{
-        scm_put_ref();
-}
-
-static const struct block_device_operations scm_blk_devops = {
-        .owner = THIS_MODULE,
-        .open = scm_open,
-        .release = scm_release,
-};
-
 static bool scm_permit_request(struct scm_blk_dev *bdev, struct request *req)
 {
         return rq_data_dir(req) != WRITE || bdev->state != SCM_WR_PROHIBIT;
@@ -256,7 +240,7 @@ static void scm_blk_request(struct request_queue *rq)
                 atomic_inc(&bdev->queued_reqs);
                 blk_start_request(req);
 
-                ret = scm_start_aob(scmrq->aob);
+                ret = eadm_start_aob(scmrq->aob);
                 if (ret) {
                         SCM_LOG(5, "no subchannel");
                         scm_request_requeue(scmrq);
@@ -320,7 +304,7 @@ static void scm_blk_handle_error(struct scm_request *scmrq)
         }
 
 restart:
-        if (!scm_start_aob(scmrq->aob))
+        if (!eadm_start_aob(scmrq->aob))
                 return;
 
 requeue:
@@ -363,6 +347,10 @@ static void scm_blk_tasklet(struct scm_blk_dev *bdev)
         blk_run_queue(bdev->rq);
 }
 
+static const struct block_device_operations scm_blk_devops = {
+        .owner = THIS_MODULE,
+};
+
 int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
 {
         struct request_queue *rq;
diff --git a/drivers/s390/block/scm_blk_cluster.c b/drivers/s390/block/scm_blk_cluster.c
index c0d102e3a48b..27f930cd657f 100644
--- a/drivers/s390/block/scm_blk_cluster.c
+++ b/drivers/s390/block/scm_blk_cluster.c
@@ -187,7 +187,7 @@ bool scm_need_cluster_request(struct scm_request *scmrq)
 void scm_initiate_cluster_request(struct scm_request *scmrq)
 {
         scm_prepare_cluster_request(scmrq);
-        if (scm_start_aob(scmrq->aob))
+        if (eadm_start_aob(scmrq->aob))
                 scm_request_requeue(scmrq);
 }
 
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 17821a026c9c..b69ab17f13fa 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -3,7 +3,8 @@
 #
 
 obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \
-         sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o
+         sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o \
+         sclp_early.o
 
 obj-$(CONFIG_TN3270) += raw3270.o
 obj-$(CONFIG_TN3270_CONSOLE) += con3270.o
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index f93cc32eb818..71e974738014 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -564,6 +564,7 @@ static void __exit
 fs3270_exit(void)
 {
         raw3270_unregister_notifier(&fs3270_notifier);
+        device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, 0));
         __unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
 }
 
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 40d1406289ed..6fbe09686d18 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -99,6 +99,7 @@ struct init_sccb {
 } __attribute__((packed));
 
 extern u64 sclp_facilities;
+
 #define SCLP_HAS_CHP_INFO       (sclp_facilities & 0x8000000000000000ULL)
 #define SCLP_HAS_CHP_RECONFIG   (sclp_facilities & 0x2000000000000000ULL)
 #define SCLP_HAS_CPU_INFO       (sclp_facilities & 0x0800000000000000ULL)
@@ -179,6 +180,10 @@ void sclp_sdias_exit(void);
 extern int sclp_console_pages;
 extern int sclp_console_drop;
 extern unsigned long sclp_console_full;
+extern u8 sclp_fac84;
+extern unsigned long long sclp_rzm;
+extern unsigned long long sclp_rnmax;
+extern __initdata int sclp_early_read_info_sccb_valid;
 
 /* useful inlines */
 
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 77df9cb00688..eaa21d542c5c 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -28,168 +28,6 @@
 
 #include "sclp.h"
 
-#define SCLP_CMDW_READ_SCP_INFO         0x00020001
-#define SCLP_CMDW_READ_SCP_INFO_FORCED  0x00120001
-
-struct read_info_sccb {
-        struct  sccb_header header;     /* 0-7 */
-        u16     rnmax;                  /* 8-9 */
-        u8      rnsize;                 /* 10 */
-        u8      _reserved0[24 - 11];    /* 11-15 */
-        u8      loadparm[8];            /* 24-31 */
-        u8      _reserved1[48 - 32];    /* 32-47 */
-        u64     facilities;             /* 48-55 */
-        u8      _reserved2[84 - 56];    /* 56-83 */
-        u8      fac84;                  /* 84 */
-        u8      fac85;                  /* 85 */
-        u8      _reserved3[91 - 86];    /* 86-90 */
-        u8      flags;                  /* 91 */
-        u8      _reserved4[100 - 92];   /* 92-99 */
-        u32     rnsize2;                /* 100-103 */
-        u64     rnmax2;                 /* 104-111 */
-        u8      _reserved5[4096 - 112]; /* 112-4095 */
-} __attribute__((packed, aligned(PAGE_SIZE)));
-
-static struct init_sccb __initdata early_event_mask_sccb __aligned(PAGE_SIZE);
-static struct read_info_sccb __initdata early_read_info_sccb;
-static int __initdata early_read_info_sccb_valid;
-
-u64 sclp_facilities;
-static u8 sclp_fac84;
-static unsigned long long rzm;
-static unsigned long long rnmax;
-
-static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
-{
-        int rc;
-
-        __ctl_set_bit(0, 9);
-        rc = sclp_service_call(cmd, sccb);
-        if (rc)
-                goto out;
-        __load_psw_mask(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_EA |
-                        PSW_MASK_BA | PSW_MASK_EXT | PSW_MASK_WAIT);
-        local_irq_disable();
-out:
-        /* Contents of the sccb might have changed. */
-        barrier();
-        __ctl_clear_bit(0, 9);
-        return rc;
-}
-
-static void __init sclp_read_info_early(void)
-{
-        int rc;
-        int i;
-        struct read_info_sccb *sccb;
-        sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED,
-                                  SCLP_CMDW_READ_SCP_INFO};
-
-        sccb = &early_read_info_sccb;
-        for (i = 0; i < ARRAY_SIZE(commands); i++) {
-                do {
-                        memset(sccb, 0, sizeof(*sccb));
-                        sccb->header.length = sizeof(*sccb);
-                        sccb->header.function_code = 0x80;
-                        sccb->header.control_mask[2] = 0x80;
-                        rc = sclp_cmd_sync_early(commands[i], sccb);
-                } while (rc == -EBUSY);
-
-                if (rc)
-                        break;
-                if (sccb->header.response_code == 0x10) {
-                        early_read_info_sccb_valid = 1;
-                        break;
-                }
-                if (sccb->header.response_code != 0x1f0)
-                        break;
-        }
-}
-
-static void __init sclp_event_mask_early(void)
-{
-        struct init_sccb *sccb = &early_event_mask_sccb;
-        int rc;
-
-        do {
-                memset(sccb, 0, sizeof(*sccb));
-                sccb->header.length = sizeof(*sccb);
-                sccb->mask_length = sizeof(sccb_mask_t);
-                rc = sclp_cmd_sync_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb);
-        } while (rc == -EBUSY);
-}
-
-void __init sclp_facilities_detect(void)
-{
-        struct read_info_sccb *sccb;
-
-        sclp_read_info_early();
-        if (!early_read_info_sccb_valid)
-                return;
-
-        sccb = &early_read_info_sccb;
-        sclp_facilities = sccb->facilities;
-        sclp_fac84 = sccb->fac84;
-        if (sccb->fac85 & 0x02)
-                S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
-        rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
-        rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
-        rzm <<= 20;
-
-        sclp_event_mask_early();
-}
-
-bool __init sclp_has_linemode(void)
-{
-        struct init_sccb *sccb = &early_event_mask_sccb;
-
-        if (sccb->header.response_code != 0x20)
-                return 0;
-        if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK)))
-                return 0;
-        if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK)))
-                return 0;
-        return 1;
-}
-
-bool __init sclp_has_vt220(void)
-{
-        struct init_sccb *sccb = &early_event_mask_sccb;
-
-        if (sccb->header.response_code != 0x20)
-                return 0;
-        if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK)
-                return 1;
-        return 0;
-}
-
-unsigned long long sclp_get_rnmax(void)
-{
-        return rnmax;
-}
-
-unsigned long long sclp_get_rzm(void)
-{
-        return rzm;
-}
-
-/*
- * This function will be called after sclp_facilities_detect(), which gets
- * called from early.c code. Therefore the sccb should have valid contents.
- */
-void __init sclp_get_ipl_info(struct sclp_ipl_info *info)
-{
-        struct read_info_sccb *sccb;
-
-        if (!early_read_info_sccb_valid)
-                return;
-        sccb = &early_read_info_sccb;
-        info->is_valid = 1;
-        if (sccb->flags & 0x2)
-                info->has_dump = 1;
-        memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN);
-}
-
 static void sclp_sync_callback(struct sclp_req *req, void *data)
 {
         struct completion *completion = data;
@@ -356,14 +194,14 @@ struct assign_storage_sccb {
 
 int arch_get_memory_phys_device(unsigned long start_pfn)
 {
-        if (!rzm)
+        if (!sclp_rzm)
                 return 0;
-        return PFN_PHYS(start_pfn) >> ilog2(rzm);
+        return PFN_PHYS(start_pfn) >> ilog2(sclp_rzm);
 }
 
 static unsigned long long rn2addr(u16 rn)
 {
-        return (unsigned long long) (rn - 1) * rzm;
+        return (unsigned long long) (rn - 1) * sclp_rzm;
 }
 
 static int do_assign_storage(sclp_cmdw_t cmd, u16 rn)
@@ -404,7 +242,7 @@ static int sclp_assign_storage(u16 rn)
         if (rc)
                 return rc;
         start = rn2addr(rn);
-        storage_key_init_range(start, start + rzm);
+        storage_key_init_range(start, start + sclp_rzm);
         return 0;
 }
 
@@ -462,7 +300,7 @@ static int sclp_mem_change_state(unsigned long start, unsigned long size,
                 istart = rn2addr(incr->rn);
                 if (start + size - 1 < istart)
                         break;
-                if (start > istart + rzm - 1)
+                if (start > istart + sclp_rzm - 1)
                         continue;
                 if (online)
                         rc |= sclp_assign_storage(incr->rn);
@@ -526,7 +364,7 @@ static void __init add_memory_merged(u16 rn)
         if (!first_rn)
                 goto skip_add;
         start = rn2addr(first_rn);
-        size = (unsigned long long ) num * rzm;
+        size = (unsigned long long) num * sclp_rzm;
         if (start >= VMEM_MAX_PHYS)
                 goto skip_add;
         if (start + size > VMEM_MAX_PHYS)
@@ -574,7 +412,7 @@ static void __init insert_increment(u16 rn, int standby, int assigned)
         }
         if (!assigned)
                 new_incr->rn = last_rn + 1;
-        if (new_incr->rn > rnmax) {
+        if (new_incr->rn > sclp_rnmax) {
                 kfree(new_incr);
                 return;
         }
@@ -617,7 +455,7 @@ static int __init sclp_detect_standby_memory(void)
 
         if (OLDMEM_BASE) /* No standby memory in kdump mode */
                 return 0;
-        if (!early_read_info_sccb_valid)
+        if (!sclp_early_read_info_sccb_valid)
                 return 0;
         if ((sclp_facilities & 0xe00000000000ULL) != 0xe00000000000ULL)
                 return 0;
@@ -661,7 +499,7 @@ static int __init sclp_detect_standby_memory(void)
         }
         if (rc || list_empty(&sclp_mem_list))
                 goto out;
-        for (i = 1; i <= rnmax - assigned; i++)
+        for (i = 1; i <= sclp_rnmax - assigned; i++)
                 insert_increment(0, 1, 0);
         rc = register_memory_notifier(&sclp_mem_nb);
         if (rc)
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
new file mode 100644
index 000000000000..f7aa080e9b28
--- /dev/null
+++ b/drivers/s390/char/sclp_early.c
@@ -0,0 +1,264 @@
+/*
+ * SCLP early driver
+ *
+ * Copyright IBM Corp. 2013
+ */
+
+#define KMSG_COMPONENT "sclp_early"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <asm/ctl_reg.h>
+#include <asm/sclp.h>
+#include <asm/ipl.h>
+#include "sclp_sdias.h"
+#include "sclp.h"
+
+#define SCLP_CMDW_READ_SCP_INFO         0x00020001
+#define SCLP_CMDW_READ_SCP_INFO_FORCED  0x00120001
+
+struct read_info_sccb {
+        struct  sccb_header header;     /* 0-7 */
+        u16     rnmax;                  /* 8-9 */
+        u8      rnsize;                 /* 10 */
+        u8      _reserved0[24 - 11];    /* 11-15 */
+        u8      loadparm[8];            /* 24-31 */
+        u8      _reserved1[48 - 32];    /* 32-47 */
+        u64     facilities;             /* 48-55 */
+        u8      _reserved2[84 - 56];    /* 56-83 */
+        u8      fac84;                  /* 84 */
+        u8      fac85;                  /* 85 */
+        u8      _reserved3[91 - 86];    /* 86-90 */
+        u8      flags;                  /* 91 */
+        u8      _reserved4[100 - 92];   /* 92-99 */
+        u32     rnsize2;                /* 100-103 */
+        u64     rnmax2;                 /* 104-111 */
+        u8      _reserved5[4096 - 112]; /* 112-4095 */
+} __packed __aligned(PAGE_SIZE);
+
+static __initdata struct init_sccb early_event_mask_sccb __aligned(PAGE_SIZE);
+static __initdata struct read_info_sccb early_read_info_sccb;
+static __initdata char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE);
+static unsigned long sclp_hsa_size;
+
+__initdata int sclp_early_read_info_sccb_valid;
+u64 sclp_facilities;
+u8 sclp_fac84;
+unsigned long long sclp_rzm;
+unsigned long long sclp_rnmax;
+
+static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
+{
+        int rc;
+
+        __ctl_set_bit(0, 9);
+        rc = sclp_service_call(cmd, sccb);
+        if (rc)
+                goto out;
+        __load_psw_mask(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_EA |
+                        PSW_MASK_BA | PSW_MASK_EXT | PSW_MASK_WAIT);
+        local_irq_disable();
+out:
+        /* Contents of the sccb might have changed. */
+        barrier();
+        __ctl_clear_bit(0, 9);
+        return rc;
+}
+
+static void __init sclp_read_info_early(void)
+{
+        int rc;
+        int i;
+        struct read_info_sccb *sccb;
+        sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED,
+                                  SCLP_CMDW_READ_SCP_INFO};
+
+        sccb = &early_read_info_sccb;
+        for (i = 0; i < ARRAY_SIZE(commands); i++) {
+                do {
+                        memset(sccb, 0, sizeof(*sccb));
+                        sccb->header.length = sizeof(*sccb);
+                        sccb->header.function_code = 0x80;
+                        sccb->header.control_mask[2] = 0x80;
+                        rc = sclp_cmd_sync_early(commands[i], sccb);
+                } while (rc == -EBUSY);
+
+                if (rc)
+                        break;
+                if (sccb->header.response_code == 0x10) {
+                        sclp_early_read_info_sccb_valid = 1;
+                        break;
+                }
+                if (sccb->header.response_code != 0x1f0)
+                        break;
+        }
+}
+
+static void __init sclp_facilities_detect(void)
+{
+        struct read_info_sccb *sccb;
+
+        sclp_read_info_early();
+        if (!sclp_early_read_info_sccb_valid)
+                return;
+
+        sccb = &early_read_info_sccb;
+        sclp_facilities = sccb->facilities;
+        sclp_fac84 = sccb->fac84;
+        if (sccb->fac85 & 0x02)
+                S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
+        sclp_rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
+        sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
+        sclp_rzm <<= 20;
+}
+
+bool __init sclp_has_linemode(void)
+{
+        struct init_sccb *sccb = &early_event_mask_sccb;
+
+        if (sccb->header.response_code != 0x20)
+                return 0;
+        if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK)))
+                return 0;
+        if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK)))
+                return 0;
+        return 1;
+}
+
+bool __init sclp_has_vt220(void)
+{
+        struct init_sccb *sccb = &early_event_mask_sccb;
+
+        if (sccb->header.response_code != 0x20)
+                return 0;
+        if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK)
+                return 1;
+        return 0;
+}
+
+unsigned long long sclp_get_rnmax(void)
+{
+        return sclp_rnmax;
+}
+
+unsigned long long sclp_get_rzm(void)
+{
+        return sclp_rzm;
+}
+
+/*
+ * This function will be called after sclp_facilities_detect(), which gets
+ * called from early.c code. Therefore the sccb should have valid contents.
+ */
+void __init sclp_get_ipl_info(struct sclp_ipl_info *info)
+{
+        struct read_info_sccb *sccb;
+
+        if (!sclp_early_read_info_sccb_valid)
+                return;
+        sccb = &early_read_info_sccb;
+        info->is_valid = 1;
+        if (sccb->flags & 0x2)
+                info->has_dump = 1;
+        memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN);
+}
+
+static int __init sclp_cmd_early(sclp_cmdw_t cmd, void *sccb)
+{
+        int rc;
+
+        do {
+                rc = sclp_cmd_sync_early(cmd, sccb);
+        } while (rc == -EBUSY);
+
+        if (rc)
+                return -EIO;
+        if (((struct sccb_header *) sccb)->response_code != 0x0020)
+                return -EIO;
+        return 0;
+}
+
+static void __init sccb_init_eq_size(struct sdias_sccb *sccb)
+{
+        memset(sccb, 0, sizeof(*sccb));
+
+        sccb->hdr.length = sizeof(*sccb);
+        sccb->evbuf.hdr.length = sizeof(struct sdias_evbuf);
+        sccb->evbuf.hdr.type = EVTYP_SDIAS;
+        sccb->evbuf.event_qual = SDIAS_EQ_SIZE;
+        sccb->evbuf.data_id = SDIAS_DI_FCP_DUMP;
+        sccb->evbuf.event_id = 4712;
+        sccb->evbuf.dbs = 1;
+}
+
+static int __init sclp_set_event_mask(unsigned long receive_mask,
+                                      unsigned long send_mask)
+{
+        struct init_sccb *sccb = (void *) &sccb_early;
+
+        memset(sccb, 0, sizeof(*sccb));
+        sccb->header.length = sizeof(*sccb);
+        sccb->mask_length = sizeof(sccb_mask_t);
+        sccb->receive_mask = receive_mask;
+        sccb->send_mask = send_mask;
+        return sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb);
+}
+
+static long __init sclp_hsa_size_init(void)
+{
+        struct sdias_sccb *sccb = (void *) &sccb_early;
+
+        sccb_init_eq_size(sccb);
+        if (sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_DATA, sccb))
+                return -EIO;
+        if (sccb->evbuf.blk_cnt != 0)
+                return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE;
+        return 0;
+}
+
+static long __init sclp_hsa_copy_wait(void)
+{
+        struct sccb_header *sccb = (void *) &sccb_early;
+
+        memset(sccb, 0, PAGE_SIZE);
+        sccb->length = PAGE_SIZE;
+        if (sclp_cmd_early(SCLP_CMDW_READ_EVENT_DATA, sccb))
+                return -EIO;
+        return (((struct sdias_sccb *) sccb)->evbuf.blk_cnt - 1) * PAGE_SIZE;
+}
+
+unsigned long sclp_get_hsa_size(void)
+{
+        return sclp_hsa_size;
+}
+
+static void __init sclp_hsa_size_detect(void)
+{
+        long size;
+
+        /* First try synchronous interface (LPAR) */
+        if (sclp_set_event_mask(0, 0x40000010))
+                return;
+        size = sclp_hsa_size_init();
+        if (size < 0)
+                return;
+        if (size != 0)
+                goto out;
+        /* Then try asynchronous interface (z/VM) */
+        if (sclp_set_event_mask(0x00000010, 0x40000010))
+                return;
+        size = sclp_hsa_size_init();
+        if (size < 0)
+                return;
+        size = sclp_hsa_copy_wait();
+        if (size < 0)
+                return;
+out:
+        sclp_hsa_size = size;
+}
+
+void __init sclp_early_detect(void)
+{
+        sclp_facilities_detect();
+        sclp_hsa_size_detect();
+        sclp_set_event_mask(0, 0);
+}
diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c
index b1032931a1c4..561a0414b352 100644
--- a/drivers/s390/char/sclp_sdias.c
+++ b/drivers/s390/char/sclp_sdias.c
@@ -1,7 +1,7 @@
 /*
- * Sclp "store data in absolut storage"
+ * SCLP "store data in absolute storage"
  *
- * Copyright IBM Corp. 2003, 2007
+ * Copyright IBM Corp. 2003, 2013
  * Author(s): Michael Holzheu
  */
 
@@ -14,6 +14,7 @@
 #include <asm/debug.h>
 #include <asm/ipl.h>
 
+#include "sclp_sdias.h"
 #include "sclp.h"
 #include "sclp_rw.h"
 
@@ -22,46 +23,12 @@
 #define SDIAS_RETRIES 300
 #define SDIAS_SLEEP_TICKS 50
 
-#define EQ_STORE_DATA   0x0
-#define EQ_SIZE         0x1
-#define DI_FCP_DUMP     0x0
-#define ASA_SIZE_32     0x0
-#define ASA_SIZE_64     0x1
-#define EVSTATE_ALL_STORED      0x0
-#define EVSTATE_NO_DATA         0x3
-#define EVSTATE_PART_STORED     0x10
-
 static struct debug_info *sdias_dbf;
 
 static struct sclp_register sclp_sdias_register = {
         .send_mask = EVTYP_SDIAS_MASK,
 };
 
-struct sdias_evbuf {
-        struct  evbuf_header hdr;
-        u8      event_qual;
-        u8      data_id;
-        u64     reserved2;
-        u32     event_id;
-        u16     reserved3;
-        u8      asa_size;
-        u8      event_status;
-        u32     reserved4;
-        u32     blk_cnt;
-        u64     asa;
-        u32     reserved5;
-        u32     fbn;
-        u32     reserved6;
-        u32     lbn;
-        u16     reserved7;
-        u16     dbs;
-} __attribute__((packed));
-
-struct sdias_sccb {
-        struct sccb_header  hdr;
-        struct sdias_evbuf  evbuf;
-} __attribute__((packed));
-
 static struct sdias_sccb sccb __attribute__((aligned(4096)));
 static struct sdias_evbuf sdias_evbuf;
 
@@ -148,8 +115,8 @@ int sclp_sdias_blk_count(void)
         sccb.hdr.length = sizeof(sccb);
         sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf);
         sccb.evbuf.hdr.type = EVTYP_SDIAS;
-        sccb.evbuf.event_qual = EQ_SIZE;
-        sccb.evbuf.data_id = DI_FCP_DUMP;
+        sccb.evbuf.event_qual = SDIAS_EQ_SIZE;
+        sccb.evbuf.data_id = SDIAS_DI_FCP_DUMP;
         sccb.evbuf.event_id = 4712;
         sccb.evbuf.dbs = 1;
 
@@ -208,13 +175,13 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
         sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf);
         sccb.evbuf.hdr.type = EVTYP_SDIAS;
         sccb.evbuf.hdr.flags = 0;
-        sccb.evbuf.event_qual = EQ_STORE_DATA;
-        sccb.evbuf.data_id = DI_FCP_DUMP;
+        sccb.evbuf.event_qual = SDIAS_EQ_STORE_DATA;
+        sccb.evbuf.data_id = SDIAS_DI_FCP_DUMP;
         sccb.evbuf.event_id = 4712;
 #ifdef CONFIG_64BIT
-        sccb.evbuf.asa_size = ASA_SIZE_64;
+        sccb.evbuf.asa_size = SDIAS_ASA_SIZE_64;
 #else
-        sccb.evbuf.asa_size = ASA_SIZE_32;
+        sccb.evbuf.asa_size = SDIAS_ASA_SIZE_32;
 #endif
         sccb.evbuf.event_status = 0;
         sccb.evbuf.blk_cnt = nr_blks;
@@ -240,20 +207,19 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
         }
 
         switch (sdias_evbuf.event_status) {
-                case EVSTATE_ALL_STORED:
-                        TRACE("all stored\n");
-                        break;
-                case EVSTATE_PART_STORED:
-                        TRACE("part stored: %i\n", sdias_evbuf.blk_cnt);
-                        break;
-                case EVSTATE_NO_DATA:
-                        TRACE("no data\n");
-                        /* fall through */
-                default:
-                        pr_err("Error from SCLP while copying hsa. "
-                               "Event status = %x\n",
-                               sdias_evbuf.event_status);
-                        rc = -EIO;
+        case SDIAS_EVSTATE_ALL_STORED:
+                TRACE("all stored\n");
+                break;
+        case SDIAS_EVSTATE_PART_STORED:
+                TRACE("part stored: %i\n", sdias_evbuf.blk_cnt);
+                break;
+        case SDIAS_EVSTATE_NO_DATA:
+                TRACE("no data\n");
+                /* fall through */
+        default:
+                pr_err("Error from SCLP while copying hsa. Event status = %x\n",
+                       sdias_evbuf.event_status);
+                rc = -EIO;
         }
 out:
         mutex_unlock(&sdias_mutex);
diff --git a/drivers/s390/char/sclp_sdias.h b/drivers/s390/char/sclp_sdias.h
new file mode 100644
index 000000000000..f2431c414150
--- /dev/null
+++ b/drivers/s390/char/sclp_sdias.h
@@ -0,0 +1,46 @@
+/*
+ * SCLP "store data in absolute storage"
+ *
+ * Copyright IBM Corp. 2003, 2013
+ */
+
+#ifndef SCLP_SDIAS_H
+#define SCLP_SDIAS_H
+
+#include "sclp.h"
+
+#define SDIAS_EQ_STORE_DATA             0x0
+#define SDIAS_EQ_SIZE                   0x1
+#define SDIAS_DI_FCP_DUMP               0x0
+#define SDIAS_ASA_SIZE_32               0x0
+#define SDIAS_ASA_SIZE_64               0x1
+#define SDIAS_EVSTATE_ALL_STORED        0x0
+#define SDIAS_EVSTATE_NO_DATA           0x3
+#define SDIAS_EVSTATE_PART_STORED       0x10
+
+struct sdias_evbuf {
+        struct  evbuf_header hdr;
+        u8      event_qual;
+        u8      data_id;
+        u64     reserved2;
+        u32     event_id;
+        u16     reserved3;
+        u8      asa_size;
+        u8      event_status;
+        u32     reserved4;
+        u32     blk_cnt;
+        u64     asa;
+        u32     reserved5;
+        u32     fbn;
+        u32     reserved6;
+        u32     lbn;
+        u16     reserved7;
+        u16     dbs;
+} __packed;
+
+struct sdias_sccb {
+        struct sccb_header      hdr;
+        struct sdias_evbuf      evbuf;
+} __packed;
+
+#endif /* SCLP_SDIAS_H */
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index ffb1fcf0bf5b..3d8e4d63f514 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -328,9 +328,9 @@ static ssize_t zcore_read(struct file *file, char __user *buf, size_t count,
         mem_offs = 0;
 
         /* Copy from HSA data */
-        if (*ppos < (ZFCPDUMP_HSA_SIZE + HEADER_SIZE)) {
-                size = min((count - hdr_count), (size_t) (ZFCPDUMP_HSA_SIZE
-                           - mem_start));
+        if (*ppos < sclp_get_hsa_size() + HEADER_SIZE) {
+                size = min((count - hdr_count),
+                           (size_t) (sclp_get_hsa_size() - mem_start));
                 rc = memcpy_hsa_user(buf + hdr_count, mem_start, size);
                 if (rc)
                         goto fail;
@@ -490,7 +490,7 @@ static ssize_t zcore_hsa_read(struct file *filp, char __user *buf,
         static char str[18];
 
         if (hsa_available)
-                snprintf(str, sizeof(str), "%lx\n", ZFCPDUMP_HSA_SIZE);
+                snprintf(str, sizeof(str), "%lx\n", sclp_get_hsa_size());
         else
                 snprintf(str, sizeof(str), "0\n");
         return simple_read_from_buffer(buf, count, ppos, str, strlen(str));
@@ -584,17 +584,9 @@ static int __init sys_info_init(enum arch_id arch, unsigned long mem_end)
 
 static int __init check_sdias(void)
 {
-        int rc, act_hsa_size;
-
-        rc = sclp_sdias_blk_count();
-        if (rc < 0) {
+        if (!sclp_get_hsa_size()) {
                 TRACE("Could not determine HSA size\n");
-                return rc;
-        }
-        act_hsa_size = (rc - 1) * PAGE_SIZE;
-        if (act_hsa_size < ZFCPDUMP_HSA_SIZE) {
-                TRACE("HSA size too small: %i\n", act_hsa_size);
-                return -EINVAL;
+                return -ENODEV;
         }
         return 0;
 }
@@ -662,7 +654,7 @@ static int __init zcore_reipl_init(void)
         ipl_block = (void *) __get_free_page(GFP_KERNEL);
         if (!ipl_block)
                 return -ENOMEM;
-        if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE)
+        if (ipib_info.ipib < sclp_get_hsa_size())
                 rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE);
         else
                 rc = memcpy_real(ipl_block, (void *) ipib_info.ipib, PAGE_SIZE);
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index aca7bfc113aa..3a2ee4a740b4 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -190,7 +190,7 @@ static struct subchannel *eadm_get_idle_sch(void)
         return NULL;
 }
 
-static int eadm_start_aob(struct aob *aob)
+int eadm_start_aob(struct aob *aob)
 {
         struct eadm_private *private;
         struct subchannel *sch;
@@ -218,6 +218,7 @@ out_unlock:
 
         return ret;
 }
+EXPORT_SYMBOL_GPL(eadm_start_aob);
 
 static int eadm_subchannel_probe(struct subchannel *sch)
 {
@@ -380,11 +381,6 @@ static struct css_driver eadm_subchannel_driver = {
         .restore = eadm_subchannel_restore,
 };
 
-static struct eadm_ops eadm_ops = {
-        .eadm_start = eadm_start_aob,
-        .owner = THIS_MODULE,
-};
-
 static int __init eadm_sch_init(void)
 {
         int ret;
@@ -404,7 +400,6 @@ static int __init eadm_sch_init(void)
         if (ret)
                 goto cleanup;
 
-        register_eadm_ops(&eadm_ops);
         return ret;
 
 cleanup:
@@ -415,7 +410,6 @@ cleanup:
 
 static void __exit eadm_sch_exit(void)
 {
-        unregister_eadm_ops(&eadm_ops);
         css_driver_unregister(&eadm_subchannel_driver);
         isc_unregister(EADM_SCH_ISC);
         debug_unregister(eadm_debug);
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
index 46ec25632e8b..15268edc54ae 100644
--- a/drivers/s390/cio/scm.c
+++ b/drivers/s390/cio/scm.c
@@ -15,8 +15,6 @@
 #include "chsc.h"
 
 static struct device *scm_root;
-static struct eadm_ops *eadm_ops;
-static DEFINE_MUTEX(eadm_ops_mutex);
 
 #define to_scm_dev(n) container_of(n, struct scm_device, dev)
 #define to_scm_drv(d) container_of(d, struct scm_driver, drv)
@@ -73,49 +71,6 @@ void scm_driver_unregister(struct scm_driver *scmdrv)
 }
 EXPORT_SYMBOL_GPL(scm_driver_unregister);
 
-int scm_get_ref(void)
-{
-        int ret = 0;
-
-        mutex_lock(&eadm_ops_mutex);
-        if (!eadm_ops || !try_module_get(eadm_ops->owner))
-                ret = -ENOENT;
-        mutex_unlock(&eadm_ops_mutex);
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(scm_get_ref);
-
-void scm_put_ref(void)
-{
-        mutex_lock(&eadm_ops_mutex);
-        module_put(eadm_ops->owner);
-        mutex_unlock(&eadm_ops_mutex);
-}
-EXPORT_SYMBOL_GPL(scm_put_ref);
-
-void register_eadm_ops(struct eadm_ops *ops)
-{
-        mutex_lock(&eadm_ops_mutex);
-        eadm_ops = ops;
-        mutex_unlock(&eadm_ops_mutex);
-}
-EXPORT_SYMBOL_GPL(register_eadm_ops);
-
-void unregister_eadm_ops(struct eadm_ops *ops)
-{
-        mutex_lock(&eadm_ops_mutex);
-        eadm_ops = NULL;
-        mutex_unlock(&eadm_ops_mutex);
-}
-EXPORT_SYMBOL_GPL(unregister_eadm_ops);
-
-int scm_start_aob(struct aob *aob)
-{
-        return eadm_ops->eadm_start(aob);
-}
-EXPORT_SYMBOL_GPL(scm_start_aob);
-
 void scm_irq_handler(struct aob *aob, int error)
 {
         struct aob_rq_header *aobrq = (void *) aob->request.data;