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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Browse source 
Pull s390 updates from Martin Schwidefsky:
 "Pretty boring for a merge window pull.

  One change in behaviour is the patch for dasd driver, the module which
  provides the diagnose discipline is now loaded automatically.

  The SCLP code got a nice cleanup, a new global structure replaces a
  bunch of accessor functions.

  And a couple of random, small improvements"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/pci: improve handling of hotplug event 0x301
  s390/setup: fix DMA_API_DEBUG warnings
  s390/zcrypt: remove obsolete __constant
  s390/keyboard: avoid off-by-one when using strnlen_user()
  s390/sclp: pass timeout as HZ independent value
  s390/mm: s/specifiation/specification/, s/an specification/a specification/
  s390/sclp: Use DECLARE_BITMAP
  s390/dasd: Enable automatic loading of dasd_diag_mod
  s390/sclp: move sclp_facilities into "struct sclp"
  s390/sclp: get rid of sclp_get_mtid() and sclp_get_mtid_max()
  s390/sclp: unify basic sclp access by exposing "struct sclp"
  s390/sclp: prepare smp_fill_possible_mask for global "struct sclp"
This commit is contained in:
Linus Torvalds 2015-06-24 08:45:27 -07:00
commit 4b1f2af675
21 changed files with 140 additions and 189 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
arch/s390/hypfs/hypfs_sprp.c
View file

@ -128,14 +128,14 @@ static struct hypfs_dbfs_file hypfs_sprp_file = {
int hypfs_sprp_init(void)
{
if (!sclp_has_sprp())
if (!sclp.has_sprp)
return 0;
return hypfs_dbfs_create_file(&hypfs_sprp_file);
}
void hypfs_sprp_exit(void)
{
if (!sclp_has_sprp())
if (!sclp.has_sprp)
return;
hypfs_dbfs_remove_file(&hypfs_sprp_file);
}

4
arch/s390/include/asm/pgtable.h
View file

@ -1565,9 +1565,9 @@ static inline int has_transparent_hugepage(void)
/*
* 64 bit swap entry format:
* A page-table entry has some bits we have to treat in a special way.
* Bits 52 and bit 55 have to be zero, otherwise an specification
* Bits 52 and bit 55 have to be zero, otherwise a specification
* exception will occur instead of a page translation exception. The
* specifiation exception has the bad habit not to store necessary
* specification exception has the bad habit not to store necessary
* information in the lowcore.
* Bits 54 and 63 are used to indicate the page type.
* A swap pte is indicated by bit pattern (pte & 0x201) == 0x200

34
arch/s390/include/asm/sclp.h
View file

@ -46,33 +46,39 @@ struct sclp_cpu_info {
struct sclp_cpu_entry cpu[MAX_CPU_ADDRESS + 1];
};
struct sclp_info {
unsigned char has_linemode : 1;
unsigned char has_vt220 : 1;
unsigned char has_siif : 1;
unsigned char has_sigpif : 1;
unsigned char has_cpu_type : 1;
unsigned char has_sprp : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;
unsigned int mtid_prev;
unsigned long long rzm;
unsigned long long rnmax;
unsigned long long hamax;
unsigned int max_cpu;
unsigned long hsa_size;
unsigned long long facilities;
};
extern struct sclp_info sclp;
int sclp_get_cpu_info(struct sclp_cpu_info *info);
int sclp_cpu_configure(u8 cpu);
int sclp_cpu_deconfigure(u8 cpu);
unsigned long long sclp_get_rnmax(void);
unsigned long long sclp_get_rzm(void);
unsigned int sclp_get_max_cpu(void);
unsigned int sclp_get_mtid(u8 cpu_type);
unsigned int sclp_get_mtid_max(void);
unsigned int sclp_get_mtid_prev(void);
int sclp_sdias_blk_count(void);
int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
int sclp_chp_configure(struct chp_id chpid);
int sclp_chp_deconfigure(struct chp_id chpid);
int sclp_chp_read_info(struct sclp_chp_info *info);
void sclp_get_ipl_info(struct sclp_ipl_info *info);
bool __init sclp_has_linemode(void);
bool __init sclp_has_vt220(void);
bool sclp_has_sprp(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);
int sclp_has_siif(void);
int sclp_has_sigpif(void);
unsigned int sclp_get_ibc(void);
long _sclp_print_early(const char *);
#endif /* _ASM_S390_SCLP_H */

8
arch/s390/kernel/crash_dump.c
View file

@ -122,7 +122,7 @@ static ssize_t copy_oldmem_page_zfcpdump(char *buf, size_t csize,
{
int rc;
if (src < sclp_get_hsa_size()) {
if (src < sclp.hsa_size) {
rc = memcpy_hsa(buf, src, csize, userbuf);
} else {
if (userbuf)
@ -215,7 +215,7 @@ static int remap_oldmem_pfn_range_zfcpdump(struct vm_area_struct *vma,
unsigned long pfn,
unsigned long size, pgprot_t prot)
{
unsigned long hsa_end = sclp_get_hsa_size();
unsigned long hsa_end = sclp.hsa_size;
unsigned long size_hsa;
if (pfn < hsa_end >> PAGE_SHIFT) {
@ -258,7 +258,7 @@ int copy_from_oldmem(void *dest, void *src, size_t count)
return rc;
}
} else {
unsigned long hsa_end = sclp_get_hsa_size();
unsigned long hsa_end = sclp.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);
@ -609,7 +609,7 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
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())
if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp.hsa_size)
return -ENODEV;
/* For kdump, exclude previous crashkernel memory */

23
arch/s390/kernel/setup.c
View file

@ -128,9 +128,9 @@ __setup("condev=", condev_setup);
static void __init set_preferred_console(void)
{
if (MACHINE_IS_KVM) {
if (sclp_has_vt220())
if (sclp.has_vt220)
add_preferred_console("ttyS", 1, NULL);
else if (sclp_has_linemode())
else if (sclp.has_linemode)
add_preferred_console("ttyS", 0, NULL);
else
add_preferred_console("hvc", 0, NULL);
@ -510,8 +510,8 @@ static void reserve_memory_end(void)
{
#ifdef CONFIG_CRASH_DUMP
if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
!OLDMEM_BASE && sclp_get_hsa_size()) {
memory_end = sclp_get_hsa_size();
!OLDMEM_BASE && sclp.hsa_size) {
memory_end = sclp.hsa_size;
memory_end &= PAGE_MASK;
memory_end_set = 1;
}
@ -576,7 +576,7 @@ static void __init reserve_crashkernel(void)
crash_base = low;
} else {
/* Find suitable area in free memory */
low = max_t(unsigned long, crash_size, sclp_get_hsa_size());
low = max_t(unsigned long, crash_size, sclp.hsa_size);
high = crash_base ? crash_base + crash_size : ULONG_MAX;
if (crash_base && crash_base < low) {
@ -640,19 +640,24 @@ static void __init check_initrd(void)
}
/*
* Reserve all kernel text
* Reserve memory used for lowcore/command line/kernel image.
*/
static void __init reserve_kernel(void)
{
unsigned long start_pfn;
start_pfn = PFN_UP(__pa(&_end));
unsigned long start_pfn = PFN_UP(__pa(&_end));
#ifdef CONFIG_DMA_API_DEBUG
/*
* Reserve memory used for lowcore/command line/kernel image.
* DMA_API_DEBUG code stumbles over addresses from the
* range [_ehead, _stext]. Mark the memory as reserved
* so it is not used for CONFIG_DMA_API_DEBUG=y.
*/
memblock_reserve(0, PFN_PHYS(start_pfn));
#else
memblock_reserve(0, (unsigned long)_ehead);
memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
- (unsigned long)_stext);
#endif
}
static void __init reserve_elfcorehdr(void)

13
arch/s390/kernel/smp.c
View file

@ -601,7 +601,7 @@ static void __init smp_store_cpu_states(struct sclp_cpu_info *info)
/* No previous system present, normal boot. */
return;
/* Set multi-threading state to the previous system. */
pcpu_set_smt(sclp_get_mtid_prev());
pcpu_set_smt(sclp.mtid_prev);
/* Collect CPU states. */
cpu = 0;
for (i = 0; i < info->configured; i++) {
@ -740,7 +740,7 @@ static void __init smp_detect_cpus(void)
#endif
/* Set multi-threading state for the current system */
mtid = sclp_get_mtid(boot_cpu_type);
mtid = boot_cpu_type ? sclp.mtid : sclp.mtid_cp;
mtid = (mtid < smp_max_threads) ? mtid : smp_max_threads - 1;
pcpu_set_smt(mtid);
@ -880,12 +880,13 @@ void __noreturn cpu_die(void)
void __init smp_fill_possible_mask(void)
{
unsigned int possible, sclp, cpu;
unsigned int possible, sclp_max, cpu;
sclp = min(smp_max_threads, sclp_get_mtid_max() + 1);
sclp = sclp_get_max_cpu()*sclp ?: nr_cpu_ids;
sclp_max = max(sclp.mtid, sclp.mtid_cp) + 1;
sclp_max = min(smp_max_threads, sclp_max);
sclp_max = sclp.max_cpu * sclp_max ?: nr_cpu_ids;
possible = setup_possible_cpus ?: nr_cpu_ids;
possible = min(possible, sclp);
possible = min(possible, sclp_max);
for (cpu = 0; cpu < possible && cpu < nr_cpu_ids; cpu++)
set_cpu_possible(cpu, true);
}

4
arch/s390/kvm/interrupt.c
View file

@ -799,7 +799,7 @@ int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
uint8_t sigp_ctrl = vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sigp_ctrl;
if (!sclp_has_sigpif())
if (!sclp.has_sigpif)
return test_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs);
return (sigp_ctrl & SIGP_CTRL_C) &&
@ -1058,7 +1058,7 @@ static int __inject_extcall(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
kvm_get_vcpu(vcpu->kvm, src_id) == NULL)
return -EINVAL;
if (sclp_has_sigpif())
if (sclp.has_sigpif)
return __inject_extcall_sigpif(vcpu, src_id);
if (!test_and_set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs))

8
arch/s390/kvm/kvm-s390.c
View file

@ -604,7 +604,7 @@ static int kvm_s390_get_machine(struct kvm *kvm, struct kvm_device_attr *attr)
goto out;
}
get_cpu_id((struct cpuid *) &mach->cpuid);
mach->ibc = sclp_get_ibc();
mach->ibc = sclp.ibc;
memcpy(&mach->fac_mask, kvm->arch.model.fac->mask,
S390_ARCH_FAC_LIST_SIZE_BYTE);
memcpy((unsigned long *)&mach->fac_list, S390_lowcore.stfle_fac_list,
@ -1068,7 +1068,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
S390_ARCH_FAC_LIST_SIZE_BYTE);
kvm_s390_get_cpu_id(&kvm->arch.model.cpu_id);
kvm->arch.model.ibc = sclp_get_ibc() & 0x0fff;
kvm->arch.model.ibc = sclp.ibc & 0x0fff;
if (kvm_s390_crypto_init(kvm) < 0)
goto out_err;
@ -1321,9 +1321,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
vcpu->arch.sie_block->ecb2 = 8;
vcpu->arch.sie_block->eca = 0xC1002000U;
if (sclp_has_siif())
if (sclp.has_siif)
vcpu->arch.sie_block->eca |= 1;
if (sclp_has_sigpif())
if (sclp.has_sigpif)
vcpu->arch.sie_block->eca |= 0x10000000U;
if (test_kvm_facility(vcpu->kvm, 129)) {
vcpu->arch.sie_block->eca |= 0x00020000;

2
arch/s390/mm/init.c
View file

@ -213,7 +213,7 @@ unsigned long memory_block_size_bytes(void)
* Make sure the memory block size is always greater
* or equal than the memory increment size.
*/
return max_t(unsigned long, MIN_MEMORY_BLOCK_SIZE, sclp_get_rzm());
return max_t(unsigned long, MIN_MEMORY_BLOCK_SIZE, sclp.rzm);
}
#ifdef CONFIG_MEMORY_HOTREMOVE

4
arch/s390/mm/mem_detect.c
View file

@ -31,8 +31,8 @@ void __init detect_memory_memblock(void)
unsigned long addr, size;
int type;
rzm = sclp_get_rzm();
rnmax = sclp_get_rnmax();
rzm = sclp.rzm;
rnmax = sclp.rnmax;
memsize = rzm * rnmax;
if (!rzm)
rzm = 1ULL << 17;

8
arch/s390/pci/pci_event.c
View file

@ -75,7 +75,13 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
zpci_err_hex(ccdf, sizeof(*ccdf));
switch (ccdf->pec) {
case 0x0301: /* Standby -> Configured */
case 0x0301: /* Reserved|Standby -> Configured */
if (!zdev) {
ret = clp_add_pci_device(ccdf->fid, ccdf->fh, 0);
if (ret)
break;
zdev = get_zdev_by_fid(ccdf->fid);
}
if (!zdev || zdev->state != ZPCI_FN_STATE_STANDBY)
break;
zdev->state = ZPCI_FN_STATE_CONFIGURED;

17
drivers/s390/block/dasd.c
View file

@ -38,6 +38,8 @@
*/
#define DASD_CHANQ_MAX_SIZE 4
#define DASD_DIAG_MOD "dasd_diag_mod"
/*
* SECTION: exported variables of dasd.c
*/
@ -3300,6 +3302,21 @@ int dasd_generic_set_online(struct ccw_device *cdev,
discipline = base_discipline;
if (device->features & DASD_FEATURE_USEDIAG) {
if (!dasd_diag_discipline_pointer) {
/* Try to load the required module. */
rc = request_module(DASD_DIAG_MOD);
if (rc) {
pr_warn("%s Setting the DASD online failed "
"because the required module %s "
"could not be loaded (rc=%d)\n",
dev_name(&cdev->dev), DASD_DIAG_MOD,
rc);
dasd_delete_device(device);
return -ENODEV;
}
}
/* Module init could have failed, so check again here after
* request_module(). */
if (!dasd_diag_discipline_pointer) {
pr_warn("%s Setting the DASD online failed because of missing DIAG discipline\n",
dev_name(&cdev->dev));
dasd_delete_device(device);

13
drivers/s390/char/keyboard.c
View file

@ -433,20 +433,23 @@ do_kdgkb_ioctl(struct kbd_data *kbd, struct kbsentry __user *u_kbs,
case KDSKBSENT:
if (!perm)
return -EPERM;
len = strnlen_user(u_kbs->kb_string,
sizeof(u_kbs->kb_string) - 1);
len = strnlen_user(u_kbs->kb_string, sizeof(u_kbs->kb_string));
if (!len)
return -EFAULT;
if (len > sizeof(u_kbs->kb_string) - 1)
if (len > sizeof(u_kbs->kb_string))
return -EINVAL;
p = kmalloc(len + 1, GFP_KERNEL);
p = kmalloc(len, GFP_KERNEL);
if (!p)
return -ENOMEM;
if (copy_from_user(p, u_kbs->kb_string, len)) {
kfree(p);
return -EFAULT;
}
p[len] = 0;
/*
* Make sure the string is terminated by 0. User could have
* modified it between us running strnlen_user() and copying it.
*/
p[len - 1] = 0;
kfree(kbd->func_table[kb_func]);
kbd->func_table[kb_func] = p;
break;

2
drivers/s390/char/sclp.c
View file

@ -665,7 +665,7 @@ sclp_state_change_cb(struct evbuf_header *evbuf)
sclp_send_mask = scbuf->sclp_send_mask;
spin_unlock_irqrestore(&sclp_lock, flags);
if (scbuf->validity_sclp_active_facility_mask)
sclp_facilities = scbuf->sclp_active_facility_mask;
sclp.facilities = scbuf->sclp_active_facility_mask;
sclp_dispatch_state_change();
}

15
drivers/s390/char/sclp.h
View file

@ -100,13 +100,11 @@ struct init_sccb {
sccb_mask_t sclp_send_mask;
} __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)
#define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL)
#define SCLP_HAS_PCI_RECONFIG (sclp_facilities & 0x0000000040000000ULL)
#define SCLP_HAS_CHP_INFO (sclp.facilities & 0x8000000000000000ULL)
#define SCLP_HAS_CHP_RECONFIG (sclp.facilities & 0x2000000000000000ULL)
#define SCLP_HAS_CPU_INFO (sclp.facilities & 0x0800000000000000ULL)
#define SCLP_HAS_CPU_RECONFIG (sclp.facilities & 0x0400000000000000ULL)
#define SCLP_HAS_PCI_RECONFIG (sclp.facilities & 0x0000000040000000ULL)
struct gds_subvector {
@ -191,9 +189,6 @@ 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;
/* useful inlines */

29
drivers/s390/char/sclp_cmd.c
View file

@ -101,7 +101,7 @@ static void sclp_fill_cpu_info(struct sclp_cpu_info *info,
info->configured = sccb->nr_configured;
info->standby = sccb->nr_standby;
info->combined = sccb->nr_configured + sccb->nr_standby;
info->has_cpu_type = sclp_fac84 & 0x1;
info->has_cpu_type = sclp.has_cpu_type;
memcpy(&info->cpu, page + sccb->offset_configured,
info->combined * sizeof(struct sclp_cpu_entry));
}
@ -186,7 +186,7 @@ int sclp_cpu_deconfigure(u8 cpu)
static DEFINE_MUTEX(sclp_mem_mutex);
static LIST_HEAD(sclp_mem_list);
static u8 sclp_max_storage_id;
static unsigned long sclp_storage_ids[256 / BITS_PER_LONG];
static DECLARE_BITMAP(sclp_storage_ids, 256);
static int sclp_mem_state_changed;
struct memory_increment {
@ -202,14 +202,14 @@ struct assign_storage_sccb {
int arch_get_memory_phys_device(unsigned long start_pfn)
{
if (!sclp_rzm)
if (!sclp.rzm)
return 0;
return PFN_PHYS(start_pfn) >> ilog2(sclp_rzm);
return PFN_PHYS(start_pfn) >> ilog2(sclp.rzm);
}
static unsigned long long rn2addr(u16 rn)
{
return (unsigned long long) (rn - 1) * sclp_rzm;
return (unsigned long long) (rn - 1) * sclp.rzm;
}
static int do_assign_storage(sclp_cmdw_t cmd, u16 rn)
@ -250,7 +250,7 @@ static int sclp_assign_storage(u16 rn)
if (rc)
return rc;
start = rn2addr(rn);
storage_key_init_range(start, start + sclp_rzm);
storage_key_init_range(start, start + sclp.rzm);
return 0;
}
@ -309,7 +309,7 @@ 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 + sclp_rzm - 1)
if (start > istart + sclp.rzm - 1)
continue;
if (online)
rc |= sclp_assign_storage(incr->rn);
@ -330,7 +330,7 @@ static bool contains_standby_increment(unsigned long start, unsigned long end)
istart = rn2addr(incr->rn);
if (end - 1 < istart)
continue;
if (start > istart + sclp_rzm - 1)
if (start > istart + sclp.rzm - 1)
continue;
if (incr->standby)
return true;
@ -415,7 +415,7 @@ static void __init add_memory_merged(u16 rn)
if (!first_rn)
goto skip_add;
start = rn2addr(first_rn);
size = (unsigned long long) num * sclp_rzm;
size = (unsigned long long) num * sclp.rzm;
if (start >= VMEM_MAX_PHYS)
goto skip_add;
if (start + size > VMEM_MAX_PHYS)
@ -465,7 +465,7 @@ static void __init insert_increment(u16 rn, int standby, int assigned)
}
if (!assigned)
new_incr->rn = last_rn + 1;
if (new_incr->rn > sclp_rnmax) {
if (new_incr->rn > sclp.rnmax) {
kfree(new_incr);
return;
}
@ -508,7 +508,7 @@ static int __init sclp_detect_standby_memory(void)
if (OLDMEM_BASE) /* No standby memory in kdump mode */
return 0;
if ((sclp_facilities & 0xe00000000000ULL) != 0xe00000000000ULL)
if ((sclp.facilities & 0xe00000000000ULL) != 0xe00000000000ULL)
return 0;
rc = -ENOMEM;
sccb = (void *) __get_free_page(GFP_KERNEL | GFP_DMA);
@ -550,7 +550,7 @@ static int __init sclp_detect_standby_memory(void)
}
if (rc || list_empty(&sclp_mem_list))
goto out;
for (i = 1; i <= sclp_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)
@ -753,8 +753,3 @@ out:
free_page((unsigned long) sccb);
return rc;
}
bool sclp_has_sprp(void)
{
return !!(sclp_fac84 & 0x2);
}

116
drivers/s390/char/sclp_early.c
View file

@ -48,23 +48,10 @@ struct read_info_sccb {
} __packed __aligned(PAGE_SIZE);
static char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE) __initdata;
static unsigned int sclp_con_has_vt220 __initdata;
static unsigned int sclp_con_has_linemode __initdata;
static unsigned long sclp_hsa_size;
static unsigned int sclp_max_cpu;
static struct sclp_ipl_info sclp_ipl_info;
static unsigned char sclp_siif;
static unsigned char sclp_sigpif;
static u32 sclp_ibc;
static unsigned int sclp_mtid;
static unsigned int sclp_mtid_cp;
static unsigned int sclp_mtid_max;
static unsigned int sclp_mtid_prev;
u64 sclp_facilities;
u8 sclp_fac84;
unsigned long long sclp_rzm;
unsigned long long sclp_rnmax;
struct sclp_info sclp;
EXPORT_SYMBOL(sclp);
static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
{
@ -117,22 +104,23 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
if (sclp_read_info_early(sccb))
return;
sclp_facilities = sccb->facilities;
sclp_fac84 = sccb->fac84;
sclp.facilities = sccb->facilities;
sclp.has_sprp = !!(sccb->fac84 & 0x02);
sclp.has_cpu_type = !!(sccb->fac84 & 0x01);
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;
sclp_ibc = sccb->ibc;
sclp.rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
sclp.rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
sclp.rzm <<= 20;
sclp.ibc = sccb->ibc;
if (!sccb->hcpua) {
if (MACHINE_IS_VM)
sclp_max_cpu = 64;
sclp.max_cpu = 64;
else
sclp_max_cpu = sccb->ncpurl;
sclp.max_cpu = sccb->ncpurl;
} else {
sclp_max_cpu = sccb->hcpua + 1;
sclp.max_cpu = sccb->hcpua + 1;
}
boot_cpu_address = stap();
@ -140,8 +128,8 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
for (cpu = 0; cpu < sccb->ncpurl; cpue++, cpu++) {
if (boot_cpu_address != cpue->core_id)
continue;
sclp_siif = cpue->siif;
sclp_sigpif = cpue->sigpif;
sclp.has_siif = cpue->siif;
sclp.has_sigpif = cpue->sigpif;
break;
}
@ -151,68 +139,9 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp_ipl_info.has_dump = 1;
memcpy(&sclp_ipl_info.loadparm, &sccb->loadparm, LOADPARM_LEN);
sclp_mtid = (sccb->fac42 & 0x80) ? (sccb->fac42 & 31) : 0;
sclp_mtid_cp = (sccb->fac42 & 0x80) ? (sccb->fac43 & 31) : 0;
sclp_mtid_max = max(sclp_mtid, sclp_mtid_cp);
sclp_mtid_prev = (sccb->fac42 & 0x80) ? (sccb->fac66 & 31) : 0;
}
bool __init sclp_has_linemode(void)
{
return !!sclp_con_has_linemode;
}
bool __init sclp_has_vt220(void)
{
return !!sclp_con_has_vt220;
}
unsigned long long sclp_get_rnmax(void)
{
return sclp_rnmax;
}
unsigned long long sclp_get_rzm(void)
{
return sclp_rzm;
}
unsigned int sclp_get_max_cpu(void)
{
return sclp_max_cpu;
}
int sclp_has_siif(void)
{
return sclp_siif;
}
EXPORT_SYMBOL(sclp_has_siif);
int sclp_has_sigpif(void)
{
return sclp_sigpif;
}
EXPORT_SYMBOL(sclp_has_sigpif);
unsigned int sclp_get_ibc(void)
{
return sclp_ibc;
}
EXPORT_SYMBOL(sclp_get_ibc);
unsigned int sclp_get_mtid(u8 cpu_type)
{
return cpu_type ? sclp_mtid : sclp_mtid_cp;
}
unsigned int sclp_get_mtid_max(void)
{
return sclp_mtid_max;
}
unsigned int sclp_get_mtid_prev(void)
{
return sclp_mtid_prev;
sclp.mtid = (sccb->fac42 & 0x80) ? (sccb->fac42 & 31) : 0;
sclp.mtid_cp = (sccb->fac42 & 0x80) ? (sccb->fac43 & 31) : 0;
sclp.mtid_prev = (sccb->fac42 & 0x80) ? (sccb->fac66 & 31) : 0;
}
/*
@ -286,11 +215,6 @@ static long __init sclp_hsa_copy_wait(struct sccb_header *sccb)
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 *sccb)
{
long size;
@ -313,7 +237,7 @@ static void __init sclp_hsa_size_detect(void *sccb)
if (size < 0)
return;
out:
sclp_hsa_size = size;
sclp.hsa_size = size;
}
static unsigned int __init sclp_con_check_linemode(struct init_sccb *sccb)
@ -331,10 +255,10 @@ static void __init sclp_console_detect(struct init_sccb *sccb)
return;
if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK)
sclp_con_has_vt220 = 1;
sclp.has_vt220 = 1;
if (sclp_con_check_linemode(sccb))
sclp_con_has_linemode = 1;
sclp.has_linemode = 1;
}
void __init sclp_early_detect(void)

3
drivers/s390/char/sclp_sdias.c
View file

@ -21,7 +21,6 @@
#define TRACE(x...) debug_sprintf_event(sdias_dbf, 1, x)
#define SDIAS_RETRIES 300
#define SDIAS_SLEEP_TICKS 50
static struct debug_info *sdias_dbf;
@ -68,7 +67,7 @@ static int sdias_sclp_send(struct sclp_req *req)
/* not initiated, wait some time and retry */
set_current_state(TASK_INTERRUPTIBLE);
TRACE("add request failed: rc = %i\n",rc);
schedule_timeout(SDIAS_SLEEP_TICKS);
schedule_timeout(msecs_to_jiffies(500));
continue;
}
/* initiated, wait for completion of service call */

10
drivers/s390/char/zcore.c
View file

@ -330,9 +330,9 @@ static ssize_t zcore_read(struct file *file, char __user *buf, size_t count,
mem_offs = 0;
/* Copy from HSA data */
if (*ppos < sclp_get_hsa_size() + HEADER_SIZE) {
if (*ppos < sclp.hsa_size + HEADER_SIZE) {
size = min((count - hdr_count),
(size_t) (sclp_get_hsa_size() - mem_start));
(size_t) (sclp.hsa_size - mem_start));
rc = memcpy_hsa_user(buf + hdr_count, mem_start, size);
if (rc)
goto fail;
@ -483,7 +483,7 @@ 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", sclp_get_hsa_size());
snprintf(str, sizeof(str), "%lx\n", sclp.hsa_size);
else
snprintf(str, sizeof(str), "0\n");
return simple_read_from_buffer(buf, count, ppos, str, strlen(str));
@ -558,7 +558,7 @@ static int __init sys_info_init(enum arch_id arch, unsigned long mem_end)
static int __init check_sdias(void)
{
if (!sclp_get_hsa_size()) {
if (!sclp.hsa_size) {
TRACE("Could not determine HSA size\n");
return -ENODEV;
}
@ -619,7 +619,7 @@ static int __init zcore_reipl_init(void)
ipl_block = (void *) __get_free_page(GFP_KERNEL);
if (!ipl_block)
return -ENOMEM;
if (ipib_info.ipib < sclp_get_hsa_size())
if (ipib_info.ipib < sclp.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);

8
drivers/s390/crypto/zcrypt_pcicc.c
View file

@ -98,11 +98,11 @@ static struct ap_driver zcrypt_pcicc_driver = {
* - VUD block
*/
static struct CPRB static_cprb = {
.cprb_len = __constant_cpu_to_le16(0x0070),
.cprb_len = cpu_to_le16(0x0070),
.cprb_ver_id = 0x41,
.func_id = {0x54,0x32},
.checkpoint_flag= 0x01,
.svr_namel = __constant_cpu_to_le16(0x0008),
.svr_namel = cpu_to_le16(0x0008),
.svr_name = {'I','C','S','F',' ',' ',' ',' '}
};
@ -164,7 +164,7 @@ static int ICAMEX_msg_to_type6MEX_msg(struct zcrypt_device *zdev,
};
static struct function_and_rules_block static_pke_function_and_rules ={
.function_code = {'P','K'},
.ulen = __constant_cpu_to_le16(10),
.ulen = cpu_to_le16(10),
.only_rule = {'P','K','C','S','-','1','.','2'}
};
struct {
@ -251,7 +251,7 @@ static int ICACRT_msg_to_type6CRT_msg(struct zcrypt_device *zdev,
};
static struct function_and_rules_block static_pkd_function_and_rules ={
.function_code = {'P','D'},
.ulen = __constant_cpu_to_le16(10),
.ulen = cpu_to_le16(10),
.only_rule = {'P','K','C','S','-','1','.','2'}
};
struct {

4
drivers/s390/kvm/kvm_virtio.c
View file

@ -450,7 +450,7 @@ static int __init test_devices_support(unsigned long addr)
static int __init kvm_devices_init(void)
{
int rc;
unsigned long total_memory_size = sclp_get_rzm() * sclp_get_rnmax();
unsigned long total_memory_size = sclp.rzm * sclp.rnmax;
if (!MACHINE_IS_KVM)
return -ENODEV;
@ -497,7 +497,7 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
static int __init s390_virtio_console_init(void)
{
if (sclp_has_vt220() || sclp_has_linemode())
if (sclp.has_vt220 || sclp.has_linemode)
return -ENODEV;
return virtio_cons_early_init(early_put_chars);
}