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s390: Convert MACHINE_IS_[LPAR|VM|KVM], etc, machine_is_[lpar|vm|kvm]()

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Move machine type detection to the decompressor and use static branches
to implement and use machine_is_[lpar|vm|kvm]() instead of a runtime check
via MACHINE_IS_[LPAR|VM|KVM].

Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2025-02-07 15:49:07 +01:00 committed by Vasily Gorbik
parent 91d6e44221
commit 52109a067a
41 changed files with 140 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
arch/s390/boot/startup.c
View File

@ -8,6 +8,7 @@
#include <asm/sections.h>
#include <asm/maccess.h>
#include <asm/machine.h>
#include <asm/sysinfo.h>
#include <asm/cpu_mf.h>
#include <asm/setup.h>
#include <asm/timex.h>
@ -49,6 +50,27 @@ void error(char *x)
disabled_wait();
}
static char sysinfo_page[PAGE_SIZE] __aligned(PAGE_SIZE);
static void detect_machine_type(void)
{
struct sysinfo_3_2_2 *vmms = (struct sysinfo_3_2_2 *)&sysinfo_page;
/* Check current-configuration-level */
if (stsi(NULL, 0, 0, 0) <= 2) {
set_machine_feature(MFEATURE_LPAR);
return;
}
/* Get virtual-machine cpu information. */
if (stsi(vmms, 3, 2, 2) || !vmms->count)
return;
/* Detect known hypervisors */
if (!memcmp(vmms->vm[0].cpi, "\xd2\xe5\xd4", 3))
set_machine_feature(MFEATURE_KVM);
else if (!memcmp(vmms->vm[0].cpi, "\xa9\x61\xe5\xd4", 4))
set_machine_feature(MFEATURE_VM);
}
static void detect_diag9c(void)
{
unsigned long reg1, reg2;
@ -520,6 +542,7 @@ void startup_kernel(void)
sclp_early_detect_machine_features();
detect_facilities();
detect_diag9c();
detect_machine_type();
cmma_init();
sanitize_prot_virt_host();
max_physmem_end = detect_max_physmem_end();

5
arch/s390/hypfs/hypfs_diag0c.c
View File

@ -9,6 +9,7 @@
#include <linux/slab.h>
#include <linux/cpu.h>
#include <asm/machine.h>
#include <asm/diag.h>
#include <asm/hypfs.h>
#include "hypfs.h"
@ -107,7 +108,7 @@ static struct hypfs_dbfs_file dbfs_file_0c = {
*/
int __init hypfs_diag0c_init(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 0;
hypfs_dbfs_create_file(&dbfs_file_0c);
return 0;
@ -118,7 +119,7 @@ int __init hypfs_diag0c_init(void)
*/
void hypfs_diag0c_exit(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return;
hypfs_dbfs_remove_file(&dbfs_file_0c);
}

3
arch/s390/hypfs/hypfs_diag_fs.c
View File

@ -16,6 +16,7 @@
#include <linux/string.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <asm/machine.h>
#include <asm/diag.h>
#include <asm/ebcdic.h>
#include "hypfs_diag.h"
@ -382,7 +383,7 @@ static void diag224_delete_name_table(void)
int __init __hypfs_diag_fs_init(void)
{
if (MACHINE_IS_LPAR)
if (machine_is_lpar())
return diag224_get_name_table();
return 0;
}

5
arch/s390/hypfs/hypfs_vm.c
View File

@ -11,6 +11,7 @@
#include <linux/string.h>
#include <linux/vmalloc.h>
#include <asm/extable.h>
#include <asm/machine.h>
#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/timex.h>
@ -121,7 +122,7 @@ static struct hypfs_dbfs_file dbfs_file_2fc = {
int hypfs_vm_init(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 0;
if (diag2fc(0, all_guests, NULL) > 0)
diag2fc_guest_query = all_guests;
@ -135,7 +136,7 @@ int hypfs_vm_init(void)
void hypfs_vm_exit(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return;
hypfs_dbfs_remove_file(&dbfs_file_2fc);
}

5
arch/s390/hypfs/inode.c
View File

@ -24,6 +24,7 @@
#include <linux/kobject.h>
#include <linux/seq_file.h>
#include <linux/uio.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include "hypfs.h"
@ -184,7 +185,7 @@ static ssize_t hypfs_write_iter(struct kiocb *iocb, struct iov_iter *from)
goto out;
}
hypfs_delete_tree(sb->s_root);
if (MACHINE_IS_VM)
if (machine_is_vm())
rc = hypfs_vm_create_files(sb->s_root);
else
rc = hypfs_diag_create_files(sb->s_root);
@ -273,7 +274,7 @@ static int hypfs_fill_super(struct super_block *sb, struct fs_context *fc)
sb->s_root = root_dentry = d_make_root(root_inode);
if (!root_dentry)
return -ENOMEM;
if (MACHINE_IS_VM)
if (machine_is_vm())
rc = hypfs_vm_create_files(root_dentry);
else
rc = hypfs_diag_create_files(root_dentry);

3
arch/s390/include/asm/appldata.h
View File

@ -9,6 +9,7 @@
#define _ASM_S390_APPLDATA_H
#include <linux/io.h>
#include <asm/machine.h>
#include <asm/diag.h>
#define APPLDATA_START_INTERVAL_REC 0x80
@ -48,7 +49,7 @@ static inline int appldata_asm(struct appldata_parameter_list *parm_list,
{
int ry;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return -EOPNOTSUPP;
parm_list->diag = 0xdc;
parm_list->function = fn;

10
arch/s390/include/asm/machine.h
View File

@ -15,6 +15,9 @@
#define MFEATURE_TX 4
#define MFEATURE_ESOP 5
#define MFEATURE_DIAG9C 6
#define MFEATURE_VM 7
#define MFEATURE_KVM 8
#define MFEATURE_LPAR 9
#ifndef __ASSEMBLY__
@ -88,6 +91,13 @@ DEFINE_MACHINE_HAS_FEATURE(tlb_guest, MFEATURE_TLB_GUEST)
DEFINE_MACHINE_HAS_FEATURE(tx, MFEATURE_TX)
DEFINE_MACHINE_HAS_FEATURE(esop, MFEATURE_ESOP)
DEFINE_MACHINE_HAS_FEATURE(diag9c, MFEATURE_DIAG9C)
DEFINE_MACHINE_HAS_FEATURE(vm, MFEATURE_VM)
DEFINE_MACHINE_HAS_FEATURE(kvm, MFEATURE_KVM)
DEFINE_MACHINE_HAS_FEATURE(lpar, MFEATURE_LPAR)
#define machine_is_vm machine_has_vm
#define machine_is_kvm machine_has_kvm
#define machine_is_lpar machine_has_lpar
#endif /* __ASSEMBLY__ */
#endif /* __ASM_S390_MACHINE_H */

11
arch/s390/include/asm/setup.h
View File

@ -13,13 +13,6 @@
#define PARMAREA 0x10400
#define COMMAND_LINE_SIZE CONFIG_COMMAND_LINE_SIZE
/*
* Machine features detected in early.c
*/
#define MACHINE_FLAG_VM BIT(0)
#define MACHINE_FLAG_KVM BIT(1)
#define MACHINE_FLAG_LPAR BIT(2)
#define LPP_MAGIC BIT(31)
#define LPP_PID_MASK _AC(0xffffffff, UL)
@ -63,10 +56,6 @@ extern unsigned long max_mappable;
/* The Write Back bit position in the physaddr is given by the SLPC PCI */
extern unsigned long mio_wb_bit_mask;
#define MACHINE_IS_VM (get_lowcore()->machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (get_lowcore()->machine_flags & MACHINE_FLAG_KVM)
#define MACHINE_IS_LPAR (get_lowcore()->machine_flags & MACHINE_FLAG_LPAR)
/*
* Console mode. Override with conmode=
*/

28
arch/s390/kernel/early.c
View File

@ -22,6 +22,7 @@
#include <asm/asm-extable.h>
#include <linux/memblock.h>
#include <asm/access-regs.h>
#include <asm/machine.h>
#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/fpu.h>
@ -82,26 +83,6 @@ static noinline __init void init_kernel_storage_key(void)
static __initdata char sysinfo_page[PAGE_SIZE] __aligned(PAGE_SIZE);
static noinline __init void detect_machine_type(void)
{
struct sysinfo_3_2_2 *vmms = (struct sysinfo_3_2_2 *)&sysinfo_page;
/* Check current-configuration-level */
if (stsi(NULL, 0, 0, 0) <= 2) {
get_lowcore()->machine_flags |= MACHINE_FLAG_LPAR;
return;
}
/* Get virtual-machine cpu information. */
if (stsi(vmms, 3, 2, 2) || !vmms->count)
return;
/* Detect known hypervisors */
if (!memcmp(vmms->vm[0].cpi, "\xd2\xe5\xd4", 3))
get_lowcore()->machine_flags |= MACHINE_FLAG_KVM;
else if (!memcmp(vmms->vm[0].cpi, "\xa9\x61\xe5\xd4", 4))
get_lowcore()->machine_flags |= MACHINE_FLAG_VM;
}
/* Remove leading, trailing and double whitespace. */
static inline void strim_all(char *str)
{
@ -142,9 +123,9 @@ static noinline __init void setup_arch_string(void)
strim_all(hvstr);
} else {
sprintf(hvstr, "%s",
MACHINE_IS_LPAR ? "LPAR" :
MACHINE_IS_VM ? "z/VM" :
MACHINE_IS_KVM ? "KVM" : "unknown");
machine_is_lpar() ? "LPAR" :
machine_is_vm() ? "z/VM" :
machine_is_kvm() ? "KVM" : "unknown");
}
dump_stack_set_arch_desc("%s (%s)", mstr, hvstr);
}
@ -249,7 +230,6 @@ void __init startup_init(void)
lockdep_off();
sort_amode31_extable();
setup_lowcore_early();
detect_machine_type();
setup_arch_string();
setup_boot_command_line();
detect_machine_facilities();

21
arch/s390/kernel/ipl.c
View File

@ -22,6 +22,7 @@
#include <linux/debug_locks.h>
#include <linux/vmalloc.h>
#include <asm/asm-extable.h>
#include <asm/machine.h>
#include <asm/diag.h>
#include <asm/ipl.h>
#include <asm/smp.h>
@ -685,7 +686,7 @@ static int __init ipl_init(void)
goto out;
switch (ipl_info.type) {
case IPL_TYPE_CCW:
if (MACHINE_IS_VM)
if (machine_is_vm())
rc = sysfs_create_group(&ipl_kset->kobj,
&ipl_ccw_attr_group_vm);
else
@ -1272,7 +1273,7 @@ static void reipl_block_ccw_fill_parms(struct ipl_parameter_block *ipb)
ipb->ccw.flags = IPL_PB0_FLAG_LOADPARM;
/* VM PARM */
if (MACHINE_IS_VM && ipl_block_valid &&
if (machine_is_vm() && ipl_block_valid &&
(ipl_block.ccw.vm_flags & IPL_PB0_CCW_VM_FLAG_VP)) {
ipb->ccw.vm_flags |= IPL_PB0_CCW_VM_FLAG_VP;
@ -1286,7 +1287,7 @@ static int __init reipl_nss_init(void)
{
int rc;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 0;
reipl_block_nss = (void *) get_zeroed_page(GFP_KERNEL);
@ -1311,8 +1312,8 @@ static int __init reipl_ccw_init(void)
return -ENOMEM;
rc = sysfs_create_group(&reipl_kset->kobj,
MACHINE_IS_VM ? &reipl_ccw_attr_group_vm
: &reipl_ccw_attr_group_lpar);
machine_is_vm() ? &reipl_ccw_attr_group_vm
: &reipl_ccw_attr_group_lpar);
if (rc)
return rc;
@ -1987,7 +1988,7 @@ static void vmcmd_run(struct shutdown_trigger *trigger)
static int vmcmd_init(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return -EOPNOTSUPP;
vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj);
if (!vmcmd_kset)
@ -2264,7 +2265,7 @@ static void __init strncpy_skip_quote(char *dst, char *src, int n)
static int __init vmcmd_on_reboot_setup(char *str)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 1;
strncpy_skip_quote(vmcmd_on_reboot, str, VMCMD_MAX_SIZE);
vmcmd_on_reboot[VMCMD_MAX_SIZE] = 0;
@ -2275,7 +2276,7 @@ __setup("vmreboot=", vmcmd_on_reboot_setup);
static int __init vmcmd_on_panic_setup(char *str)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 1;
strncpy_skip_quote(vmcmd_on_panic, str, VMCMD_MAX_SIZE);
vmcmd_on_panic[VMCMD_MAX_SIZE] = 0;
@ -2286,7 +2287,7 @@ __setup("vmpanic=", vmcmd_on_panic_setup);
static int __init vmcmd_on_halt_setup(char *str)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 1;
strncpy_skip_quote(vmcmd_on_halt, str, VMCMD_MAX_SIZE);
vmcmd_on_halt[VMCMD_MAX_SIZE] = 0;
@ -2297,7 +2298,7 @@ __setup("vmhalt=", vmcmd_on_halt_setup);
static int __init vmcmd_on_poff_setup(char *str)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 1;
strncpy_skip_quote(vmcmd_on_poff, str, VMCMD_MAX_SIZE);
vmcmd_on_poff[VMCMD_MAX_SIZE] = 0;

3
arch/s390/kernel/irq.c
View File

@ -25,6 +25,7 @@
#include <asm/irq_regs.h>
#include <asm/cputime.h>
#include <asm/lowcore.h>
#include <asm/machine.h>
#include <asm/irq.h>
#include <asm/hw_irq.h>
#include <asm/stacktrace.h>
@ -164,7 +165,7 @@ void noinstr do_io_irq(struct pt_regs *regs)
do_irq_async(regs, THIN_INTERRUPT);
else
do_irq_async(regs, IO_INTERRUPT);
} while (MACHINE_IS_LPAR && irq_pending(regs));
} while (machine_is_lpar() && irq_pending(regs));
irq_exit_rcu();

3
arch/s390/kernel/machine_kexec.c
View File

@ -15,6 +15,7 @@
#include <linux/debug_locks.h>
#include <linux/cpufeature.h>
#include <asm/guarded_storage.h>
#include <asm/machine.h>
#include <asm/pfault.h>
#include <asm/cio.h>
#include <asm/fpu.h>
@ -179,7 +180,7 @@ void arch_kexec_unprotect_crashkres(void)
static int machine_kexec_prepare_kdump(void)
{
#ifdef CONFIG_CRASH_DUMP
if (MACHINE_IS_VM)
if (machine_is_vm())
diag10_range(PFN_DOWN(crashk_res.start),
PFN_DOWN(crashk_res.end - crashk_res.start + 1));
return 0;

12
arch/s390/kernel/setup.c
View File

@ -252,7 +252,7 @@ static void __init conmode_default(void)
char query_buffer[1024];
char *ptr;
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
cpcmd("QUERY CONSOLE", query_buffer, 1024, NULL);
console_devno = simple_strtoul(query_buffer + 5, NULL, 16);
ptr = strstr(query_buffer, "SUBCHANNEL =");
@ -290,7 +290,7 @@ static void __init conmode_default(void)
SET_CONSOLE_SCLP;
#endif
}
} else if (MACHINE_IS_KVM) {
} else if (machine_is_kvm()) {
if (sclp.has_vt220 && IS_ENABLED(CONFIG_SCLP_VT220_CONSOLE))
SET_CONSOLE_VT220;
else if (sclp.has_linemode && IS_ENABLED(CONFIG_SCLP_CONSOLE))
@ -653,7 +653,7 @@ static void __init reserve_crashkernel(void)
return;
}
if (!oldmem_data.start && MACHINE_IS_VM)
if (!oldmem_data.start && machine_is_vm())
diag10_range(PFN_DOWN(crash_base), PFN_DOWN(crash_size));
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
@ -899,12 +899,12 @@ void __init setup_arch(char **cmdline_p)
/*
* print what head.S has found out about the machine
*/
if (MACHINE_IS_VM)
if (machine_is_vm())
pr_info("Linux is running as a z/VM "
"guest operating system in 64-bit mode\n");
else if (MACHINE_IS_KVM)
else if (machine_is_kvm())
pr_info("Linux is running under KVM in 64-bit mode\n");
else if (MACHINE_IS_LPAR)
else if (machine_is_lpar())
pr_info("Linux is running natively in 64-bit mode\n");
else
pr_info("Linux is running as a guest in 64-bit mode\n");

3
arch/s390/kernel/sysinfo.c
View File

@ -16,6 +16,7 @@
#include <linux/export.h>
#include <linux/slab.h>
#include <asm/asm-extable.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include <asm/debug.h>
#include <asm/sysinfo.h>
@ -378,7 +379,7 @@ static struct service_level service_level_vm = {
static __init int create_proc_service_level(void)
{
proc_create_seq("service_levels", 0, NULL, &service_level_seq_ops);
if (MACHINE_IS_VM)
if (machine_is_vm())
register_service_level(&service_level_vm);
return 0;
}

7
arch/s390/lib/spinlock.c
View File

@ -15,6 +15,7 @@
#include <linux/percpu.h>
#include <linux/io.h>
#include <asm/alternative.h>
#include <asm/machine.h>
#include <asm/asm.h>
int spin_retry = -1;
@ -212,7 +213,7 @@ static inline void arch_spin_lock_queued(arch_spinlock_t *lp)
if (count-- >= 0)
continue;
count = spin_retry;
if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(owner - 1))
if (!machine_is_lpar() || arch_vcpu_is_preempted(owner - 1))
smp_yield_cpu(owner - 1);
}
@ -255,7 +256,7 @@ static inline void arch_spin_lock_classic(arch_spinlock_t *lp)
if (count-- >= 0)
continue;
count = spin_retry;
if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(owner - 1))
if (!machine_is_lpar() || arch_vcpu_is_preempted(owner - 1))
smp_yield_cpu(owner - 1);
}
}
@ -337,7 +338,7 @@ void arch_spin_relax(arch_spinlock_t *lp)
cpu = READ_ONCE(lp->lock) & _Q_LOCK_CPU_MASK;
if (!cpu)
return;
if (MACHINE_IS_LPAR && !arch_vcpu_is_preempted(cpu - 1))
if (machine_is_lpar() && !arch_vcpu_is_preempted(cpu - 1))
return;
smp_yield_cpu(cpu - 1);
}

9
arch/s390/mm/extmem.c
View File

@ -21,6 +21,7 @@
#include <linux/ioport.h>
#include <linux/refcount.h>
#include <linux/pgtable.h>
#include <asm/machine.h>
#include <asm/diag.h>
#include <asm/page.h>
#include <asm/ebcdic.h>
@ -255,7 +256,7 @@ segment_type (char* name)
int rc;
struct dcss_segment seg;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return -ENOSYS;
dcss_mkname(name, seg.dcss_name);
@ -418,7 +419,7 @@ segment_load (char *name, int do_nonshared, unsigned long *addr,
struct dcss_segment *seg;
int rc;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return -ENOSYS;
mutex_lock(&dcss_lock);
@ -540,7 +541,7 @@ segment_unload(char *name)
unsigned long dummy;
struct dcss_segment *seg;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return;
mutex_lock(&dcss_lock);
@ -572,7 +573,7 @@ segment_save(char *name)
char cmd2[80];
int i, response;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return;
mutex_lock(&dcss_lock);

3
drivers/s390/block/dasd.c
View File

@ -21,6 +21,7 @@
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
#include <asm/machine.h>
#include <asm/ccwdev.h>
#include <asm/ebcdic.h>
#include <asm/idals.h>
@ -3382,7 +3383,7 @@ int dasd_device_is_ro(struct dasd_device *device)
struct diag210 diag_data;
int rc;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 0;
ccw_device_get_id(device->cdev, &dev_id);
memset(&diag_data, 0, sizeof(diag_data));

3
drivers/s390/block/dasd_devmap.c
View File

@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/machine.h>
#include <asm/debug.h>
#include <linux/uaccess.h>
#include <asm/ipl.h>
@ -234,7 +235,7 @@ static int __init dasd_parse_keyword(char *keyword)
return 0;
}
if (strncmp("nopav", keyword, length) == 0) {
if (MACHINE_IS_VM)
if (machine_is_vm())
pr_info("'nopav' is not supported on z/VM\n");
else {
dasd_nopav = 1;

3
drivers/s390/block/dasd_diag.c
View File

@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/jiffies.h>
#include <asm/asm-extable.h>
#include <asm/machine.h>
#include <asm/dasd.h>
#include <asm/debug.h>
#include <asm/diag.h>
@ -654,7 +655,7 @@ static struct dasd_discipline dasd_diag_discipline = {
static int __init
dasd_diag_init(void)
{
if (!MACHINE_IS_VM) {
if (!machine_is_vm()) {
pr_info("Discipline %s cannot be used without z/VM\n",
dasd_diag_discipline.name);
return -ENODEV;

3
drivers/s390/block/dasd_eckd.c
View File

@ -23,6 +23,7 @@
#include <linux/io.h>
#include <asm/css_chars.h>
#include <asm/machine.h>
#include <asm/debug.h>
#include <asm/idals.h>
#include <asm/ebcdic.h>
@ -1953,7 +1954,7 @@ static int dasd_eckd_validate_server(struct dasd_device *device,
if (private->uid.type == UA_BASE_PAV_ALIAS ||
private->uid.type == UA_HYPER_PAV_ALIAS)
return 0;
if (dasd_nopav || MACHINE_IS_VM)
if (dasd_nopav || machine_is_vm())
enable_pav = 0;
else
enable_pav = 1;

3
drivers/s390/char/con3215.c
View File

@ -23,6 +23,7 @@
#include <linux/reboot.h>
#include <linux/serial.h> /* ASYNC_* flags */
#include <linux/slab.h>
#include <asm/machine.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <linux/io.h>
@ -907,7 +908,7 @@ static int __init con3215_init(void)
return -ENODEV;
/* Set the console mode for VM */
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
cpcmd("TERM CONMODE 3215", NULL, 0, NULL);
cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
}

3
drivers/s390/char/con3270.c
View File

@ -23,6 +23,7 @@
#include <linux/memblock.h>
#include <linux/compat.h>
#include <asm/machine.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/ebcdic.h>
@ -2156,7 +2157,7 @@ con3270_init(void)
return -ENODEV;
/* Set the console mode for VM */
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
cpcmd("TERM CONMODE 3270", NULL, 0, NULL);
cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
}

6
drivers/s390/char/hmcdrv_ftp.c
View File

@ -17,6 +17,8 @@
#include <linux/ctype.h>
#include <linux/crc16.h>
#include <asm/machine.h>
#include "hmcdrv_ftp.h"
#include "hmcdrv_cache.h"
#include "sclp_ftp.h"
@ -308,9 +310,9 @@ int hmcdrv_ftp_startup(void)
mutex_lock(&hmcdrv_ftp_mutex); /* block transfers while start-up */
if (hmcdrv_ftp_refcnt == 0) {
if (MACHINE_IS_VM)
if (machine_is_vm())
hmcdrv_ftp_funcs = &hmcdrv_ftp_zvm;
else if (MACHINE_IS_LPAR || MACHINE_IS_KVM)
else if (machine_is_lpar() || machine_is_kvm())
hmcdrv_ftp_funcs = &hmcdrv_ftp_lpar;
else
rc = -EOPNOTSUPP;

3
drivers/s390/char/monreader.c
View File

@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <net/iucv/iucv.h>
#include <linux/uaccess.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include <asm/extmem.h>
@ -456,7 +457,7 @@ static int __init mon_init(void)
{
int rc;
if (!MACHINE_IS_VM) {
if (!machine_is_vm()) {
pr_err("The z/VM *MONITOR record device driver cannot be "
"loaded without z/VM\n");
return -ENODEV;

3
drivers/s390/char/monwriter.c
View File

@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include <asm/appldata.h>
#include <asm/monwriter.h>
@ -293,7 +294,7 @@ static struct miscdevice mon_dev = {
static int __init mon_init(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return -ENODEV;
/*
* misc_register() has to be the last action in module_init(), because

3
drivers/s390/char/raw3270.c
View File

@ -17,6 +17,7 @@
#include <linux/types.h>
#include <linux/wait.h>
#include <asm/machine.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/ebcdic.h>
@ -618,7 +619,7 @@ static void raw3270_reset_device_cb(struct raw3270_request *rq, void *data)
if (rq->rc) {
/* Reset command failed. */
rp->state = RAW3270_STATE_INIT;
} else if (MACHINE_IS_VM) {
} else if (machine_is_vm()) {
raw3270_size_device_vm(rp);
raw3270_size_device_done(rp);
} else {

7
drivers/s390/char/sclp.h
View File

@ -12,6 +12,7 @@
#include <linux/types.h>
#include <linux/list.h>
#include <asm/asm-extable.h>
#include <asm/machine.h>
#include <asm/sclp.h>
#include <asm/ebcdic.h>
#include <asm/asm.h>
@ -342,21 +343,21 @@ static inline int sclp_service_call(sclp_cmdw_t command, void *sccb)
static inline unsigned char
sclp_ascebc(unsigned char ch)
{
return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch];
return (machine_is_vm()) ? _ascebc[ch] : _ascebc_500[ch];
}
/* translate string from EBCDIC to ASCII */
static inline void
sclp_ebcasc_str(char *str, int nr)
{
(MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr);
(machine_is_vm()) ? EBCASC(str, nr) : EBCASC_500(str, nr);
}
/* translate string from ASCII to EBCDIC */
static inline void
sclp_ascebc_str(char *str, int nr)
{
(MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr);
(machine_is_vm()) ? ASCEBC(str, nr) : ASCEBC_500(str, nr);
}
static inline struct gds_vector *

2
drivers/s390/char/sclp_early.c
View File

@ -74,7 +74,7 @@ static void __init sclp_early_facilities_detect(void)
sclp.hamax = U64_MAX;
if (!sccb->hcpua) {
if (MACHINE_IS_VM)
if (machine_is_vm())
sclp.max_cores = 64;
else
sclp.max_cores = sccb->ncpurl;

4
drivers/s390/char/sclp_tty.c
View File

@ -499,7 +499,7 @@ sclp_tty_init(void)
int rc;
/* z/VM multiplexes the line mode output on the 32xx screen */
if (MACHINE_IS_VM && !CONSOLE_IS_SCLP)
if (machine_is_vm() && !CONSOLE_IS_SCLP)
return 0;
if (!sclp.has_linemode)
return 0;
@ -524,7 +524,7 @@ sclp_tty_init(void)
timer_setup(&sclp_tty_timer, sclp_tty_timeout, 0);
sclp_ttybuf = NULL;
sclp_tty_buffer_count = 0;
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
/* case input lines to lowercase */
sclp_tty_tolower = 1;
}

5
drivers/s390/char/vmcp.c
View File

@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/cma.h>
#include <linux/mm.h>
#include <asm/machine.h>
#include <asm/cpcmd.h>
#include <asm/debug.h>
#include <asm/vmcp.h>
@ -52,7 +53,7 @@ early_param("vmcp_cma", early_parse_vmcp_cma);
void __init vmcp_cma_reserve(void)
{
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return;
cma_declare_contiguous(0, vmcp_cma_size, 0, 0, 0, false, "vmcp", &vmcp_cma);
}
@ -254,7 +255,7 @@ static int __init vmcp_init(void)
{
int ret;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return 0;
vmcp_debug = debug_register("vmcp", 1, 1, 240);

3
drivers/s390/char/vmlogrdr.c
View File

@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/atomic.h>
#include <linux/uaccess.h>
#include <asm/machine.h>
#include <asm/cpcmd.h>
#include <asm/debug.h>
#include <asm/ebcdic.h>
@ -809,7 +810,7 @@ static int __init vmlogrdr_init(void)
int i;
dev_t dev;
if (! MACHINE_IS_VM) {
if (!machine_is_vm()) {
pr_err("not running under VM, driver not loaded.\n");
return -ENODEV;
}

3
drivers/s390/char/vmur.c
View File

@ -18,6 +18,7 @@
#include <linux/kobject.h>
#include <linux/uaccess.h>
#include <asm/machine.h>
#include <asm/cio.h>
#include <asm/ccwdev.h>
#include <asm/debug.h>
@ -1009,7 +1010,7 @@ static int __init ur_init(void)
int rc;
dev_t dev;
if (!MACHINE_IS_VM) {
if (!machine_is_vm()) {
pr_err("The %s cannot be loaded without z/VM\n",
ur_banner);
return -ENODEV;

3
drivers/s390/cio/device_id.c
View File

@ -12,6 +12,7 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <asm/machine.h>
#include <asm/ccwdev.h>
#include <asm/setup.h>
#include <asm/cio.h>
@ -175,7 +176,7 @@ static void snsid_callback(struct ccw_device *cdev, void *data, int rc)
struct senseid *senseid = &cdev->private->dma_area->senseid;
int vm = 0;
if (rc && MACHINE_IS_VM) {
if (rc && machine_is_vm()) {
/* Try diag 0x210 fallback on z/VM. */
snsid_init(cdev);
if (diag210_get_dev_info(cdev) == 0) {

3
drivers/s390/crypto/ap_bus.c
View File

@ -26,6 +26,7 @@
#include <linux/notifier.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <asm/machine.h>
#include <asm/airq.h>
#include <asm/tpi.h>
#include <linux/atomic.h>
@ -2324,7 +2325,7 @@ static inline int __init ap_async_init(void)
* Setup the high resolution poll timer.
* If we are running under z/VM adjust polling to z/VM polling rate.
*/
if (MACHINE_IS_VM)
if (machine_is_vm())
poll_high_timeout = 1500000;
hrtimer_init(&ap_poll_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
ap_poll_timer.function = ap_poll_timeout;

3
drivers/s390/net/qeth_l2_main.c
View File

@ -22,6 +22,7 @@
#include <linux/hash.h>
#include <linux/hashtable.h>
#include <net/switchdev.h>
#include <asm/machine.h>
#include <asm/chsc.h>
#include <asm/css_chars.h>
#include <asm/setup.h>
@ -299,7 +300,7 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card)
QETH_CARD_TEXT(card, 2, "l2reqmac");
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
rc = qeth_vm_request_mac(card);
if (!rc)
goto out;

3
drivers/s390/net/smsgiucv.c
View File

@ -13,6 +13,7 @@
#include <linux/device.h>
#include <linux/slab.h>
#include <net/iucv/iucv.h>
#include <asm/machine.h>
#include <asm/cpcmd.h>
#include <asm/ebcdic.h>
#include "smsgiucv.h"
@ -138,7 +139,7 @@ static int __init smsg_init(void)
{
int rc;
if (!MACHINE_IS_VM) {
if (!machine_is_vm()) {
rc = -EPROTONOSUPPORT;
goto out;
}

3
drivers/s390/net/smsgiucv_app.c
View File

@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <net/iucv/iucv.h>
#include <asm/machine.h>
#include "smsgiucv.h"
/* prefix used for SMSG registration */
@ -153,7 +154,7 @@ static int __init smsgiucv_app_init(void)
struct device_driver *smsgiucv_drv;
int rc;
if (!MACHINE_IS_VM)
if (!machine_is_vm())
return -ENODEV;
smsgiucv_drv = driver_find(SMSGIUCV_DRV_NAME, &iucv_bus);

7
drivers/tty/hvc/hvc_iucv.c
View File

@ -24,6 +24,7 @@
#include <linux/tty.h>
#include <linux/wait.h>
#include <net/iucv/iucv.h>
#include <asm/machine.h>
#include "hvc_console.h"
@ -1240,7 +1241,7 @@ static int param_set_vmidfilter(const char *val, const struct kernel_param *kp)
{
int rc;
if (!MACHINE_IS_VM || !hvc_iucv_devices)
if (!machine_is_vm() || !hvc_iucv_devices)
return -ENODEV;
if (!val)
@ -1269,7 +1270,7 @@ static int param_get_vmidfilter(char *buffer, const struct kernel_param *kp)
size_t index, len;
void *start, *end;
if (!MACHINE_IS_VM || !hvc_iucv_devices)
if (!machine_is_vm() || !hvc_iucv_devices)
return -ENODEV;
rc = 0;
@ -1306,7 +1307,7 @@ static int __init hvc_iucv_init(void)
if (!hvc_iucv_devices)
return -ENODEV;
if (!MACHINE_IS_VM) {
if (!machine_is_vm()) {
pr_notice("The z/VM IUCV HVC device driver cannot "
"be used without z/VM\n");
rc = -ENODEV;

7
drivers/watchdog/diag288_wdt.c
View File

@ -27,6 +27,7 @@
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/watchdog.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include <asm/diag.h>
#include <linux/io.h>
@ -110,7 +111,7 @@ static int wdt_start(struct watchdog_device *dev)
int ret;
unsigned int func;
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
func = conceal_on ? (WDT_FUNC_INIT | WDT_FUNC_CONCEAL)
: WDT_FUNC_INIT;
ret = diag288_str(func, dev->timeout, wdt_cmd);
@ -136,7 +137,7 @@ static int wdt_ping(struct watchdog_device *dev)
int ret;
unsigned int func;
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
/*
* It seems to be ok to z/VM to use the init function to
* retrigger the watchdog. On LPAR WDT_FUNC_CHANGE must
@ -192,7 +193,7 @@ static int __init diag288_init(void)
watchdog_set_nowayout(&wdt_dev, nowayout_info);
if (MACHINE_IS_VM) {
if (machine_is_vm()) {
cmd_buf = kmalloc(MAX_CMDLEN, GFP_KERNEL);
if (!cmd_buf) {
pr_err("The watchdog cannot be initialized\n");

3
net/iucv/af_iucv.c
View File

@ -28,6 +28,7 @@
#include <linux/poll.h>
#include <linux/security.h>
#include <net/sock.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include <asm/cpcmd.h>
#include <linux/kmod.h>
@ -2272,7 +2273,7 @@ static int __init afiucv_init(void)
{
int err;
if (MACHINE_IS_VM && IS_ENABLED(CONFIG_IUCV)) {
if (machine_is_vm() && IS_ENABLED(CONFIG_IUCV)) {
cpcmd("QUERY USERID", iucv_userid, sizeof(iucv_userid), &err);
if (unlikely(err)) {
WARN_ON(err);

3
net/iucv/iucv.c
View File

@ -39,6 +39,7 @@
#include <linux/reboot.h>
#include <net/iucv/iucv.h>
#include <linux/atomic.h>
#include <asm/machine.h>
#include <asm/ebcdic.h>
#include <asm/io.h>
#include <asm/irq.h>
@ -1865,7 +1866,7 @@ static int __init iucv_init(void)
{
int rc;
if (!MACHINE_IS_VM) {
if (!machine_is_vm()) {
rc = -EPROTONOSUPPORT;
goto out;
}