summaryrefslogtreecommitdiff
path: root/arch/s390/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/compat_signal.c12
-rw-r--r--arch/s390/kernel/crash_dump.c5
-rw-r--r--arch/s390/kernel/early.c4
-rw-r--r--arch/s390/kernel/fpu.c8
-rw-r--r--arch/s390/kernel/machine_kexec.c2
-rw-r--r--arch/s390/kernel/nmi.c5
-rw-r--r--arch/s390/kernel/perf_regs.c6
-rw-r--r--arch/s390/kernel/processor.c4
-rw-r--r--arch/s390/kernel/ptrace.c21
-rw-r--r--arch/s390/kernel/signal.c8
-rw-r--r--arch/s390/kernel/smp.c6
-rw-r--r--arch/s390/kernel/traps.c2
12 files changed, 44 insertions, 39 deletions
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 8b90bf89b62c..f8fc6c25d051 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -29,6 +29,7 @@
#include <asm/lowcore.h>
#include <asm/switch_to.h>
#include <asm/vdso.h>
+#include <asm/fpu/api.h>
#include "compat_linux.h"
#include "compat_ptrace.h"
#include "entry.h"
@@ -133,7 +134,7 @@ static int save_sigregs_ext32(struct pt_regs *regs,
return -EFAULT;
/* Save vector registers to signal stack */
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
for (i = 0; i < __NUM_VXRS_LOW; i++)
vxrs[i] = current->thread.fpu.vxrs[i].low;
if (__copy_to_user(&sregs_ext->vxrs_low, vxrs,
@@ -161,7 +162,7 @@ static int restore_sigregs_ext32(struct pt_regs *regs,
*(__u32 *)&regs->gprs[i] = gprs_high[i];
/* Restore vector registers from signal stack */
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
if (__copy_from_user(vxrs, &sregs_ext->vxrs_low,
sizeof(sregs_ext->vxrs_low)) ||
__copy_from_user(current->thread.fpu.vxrs + __NUM_VXRS_LOW,
@@ -261,7 +262,7 @@ static int setup_frame32(struct ksignal *ksig, sigset_t *set,
* the machine supports it
*/
frame_size = sizeof(*frame) - sizeof(frame->sregs_ext.__reserved);
- if (!MACHINE_HAS_VX)
+ if (!cpu_has_vx())
frame_size -= sizeof(frame->sregs_ext.vxrs_low) +
sizeof(frame->sregs_ext.vxrs_high);
frame = get_sigframe(&ksig->ka, regs, frame_size);
@@ -344,11 +345,12 @@ static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
* the machine supports it
*/
uc_flags = UC_GPRS_HIGH;
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
uc_flags |= UC_VXRS;
- } else
+ } else {
frame_size -= sizeof(frame->uc.uc_mcontext_ext.vxrs_low) +
sizeof(frame->uc.uc_mcontext_ext.vxrs_high);
+ }
frame = get_sigframe(&ksig->ka, regs, frame_size);
if (frame == (void __user *) -1UL)
return -EFAULT;
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 514feadd4c58..5c46c2659305 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -22,6 +22,7 @@
#include <asm/ipl.h>
#include <asm/sclp.h>
#include <asm/maccess.h>
+#include <asm/fpu/api.h>
#define PTR_ADD(x, y) (((char *) (x)) + ((unsigned long) (y)))
#define PTR_SUB(x, y) (((char *) (x)) - ((unsigned long) (y)))
@@ -319,7 +320,7 @@ static void *fill_cpu_elf_notes(void *ptr, int cpu, struct save_area *sa)
ptr = nt_init(ptr, NT_S390_TODPREG, &sa->todpreg, sizeof(sa->todpreg));
ptr = nt_init(ptr, NT_S390_CTRS, &sa->ctrs, sizeof(sa->ctrs));
ptr = nt_init(ptr, NT_S390_PREFIX, &sa->prefix, sizeof(sa->prefix));
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
ptr = nt_init(ptr, NT_S390_VXRS_HIGH,
&sa->vxrs_high, sizeof(sa->vxrs_high));
ptr = nt_init(ptr, NT_S390_VXRS_LOW,
@@ -343,7 +344,7 @@ static size_t get_cpu_elf_notes_size(void)
size += nt_size(NT_S390_TODPREG, sizeof(sa->todpreg));
size += nt_size(NT_S390_CTRS, sizeof(sa->ctrs));
size += nt_size(NT_S390_PREFIX, sizeof(sa->prefix));
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
size += nt_size(NT_S390_VXRS_HIGH, sizeof(sa->vxrs_high));
size += nt_size(NT_S390_VXRS_LOW, sizeof(sa->vxrs_low));
}
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index a34360652554..2345ea332b97 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -229,10 +229,8 @@ static __init void detect_machine_facilities(void)
}
if (test_facility(51))
S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_LC;
- if (test_facility(129)) {
- S390_lowcore.machine_flags |= MACHINE_FLAG_VX;
+ if (test_facility(129))
system_ctl_set_bit(0, CR0_VECTOR_BIT);
- }
if (test_facility(130))
S390_lowcore.machine_flags |= MACHINE_FLAG_NX;
if (test_facility(133))
diff --git a/arch/s390/kernel/fpu.c b/arch/s390/kernel/fpu.c
index 35aaf99bab16..9e7c15fccfea 100644
--- a/arch/s390/kernel/fpu.c
+++ b/arch/s390/kernel/fpu.c
@@ -24,7 +24,7 @@ void __kernel_fpu_begin(struct kernel_fpu *state, u32 flags)
/* Save floating point control */
asm volatile("stfpc %0" : "=Q" (state->fpc));
- if (!MACHINE_HAS_VX) {
+ if (!cpu_has_vx()) {
if (flags & KERNEL_VXR_V0V7) {
/* Save floating-point registers */
asm volatile("std 0,%0" : "=Q" (state->fprs[0]));
@@ -106,7 +106,7 @@ void __kernel_fpu_end(struct kernel_fpu *state, u32 flags)
/* Restore floating-point controls */
asm volatile("lfpc %0" : : "Q" (state->fpc));
- if (!MACHINE_HAS_VX) {
+ if (!cpu_has_vx()) {
if (flags & KERNEL_VXR_V0V7) {
/* Restore floating-point registers */
asm volatile("ld 0,%0" : : "Q" (state->fprs[0]));
@@ -181,7 +181,7 @@ void __load_fpu_regs(void)
struct fpu *state = &current->thread.fpu;
sfpc_safe(state->fpc);
- if (likely(MACHINE_HAS_VX)) {
+ if (likely(cpu_has_vx())) {
asm volatile("lgr 1,%0\n"
"VLM 0,15,0,1\n"
"VLM 16,31,256,1\n"
@@ -232,7 +232,7 @@ void save_fpu_regs(void)
regs = current->thread.fpu.regs;
asm volatile("stfpc %0" : "=Q" (state->fpc));
- if (likely(MACHINE_HAS_VX)) {
+ if (likely(cpu_has_vx())) {
asm volatile("lgr 1,%0\n"
"VSTM 0,15,0,1\n"
"VSTM 16,31,256,1\n"
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index bb0d4d68fcbe..aa22ffc16bcd 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -91,7 +91,7 @@ static noinline void __machine_kdump(void *image)
}
/* Store status of the boot CPU */
mcesa = __va(S390_lowcore.mcesad & MCESA_ORIGIN_MASK);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
save_vx_regs((__vector128 *) mcesa->vector_save_area);
if (MACHINE_HAS_GS) {
local_ctl_store(2, &cr2_old.reg);
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 60bcb451a4eb..9ad44c26d1a2 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -32,6 +32,7 @@
#include <asm/asm-offsets.h>
#include <asm/pai.h>
#include <asm/vx-insn.h>
+#include <asm/fpu/api.h>
struct mcck_struct {
unsigned int kill_task : 1;
@@ -45,7 +46,7 @@ static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck);
static inline int nmi_needs_mcesa(void)
{
- return MACHINE_HAS_VX || MACHINE_HAS_GS;
+ return cpu_has_vx() || MACHINE_HAS_GS;
}
/*
@@ -235,7 +236,7 @@ static int notrace s390_validate_registers(union mci mci)
}
mcesa = __va(S390_lowcore.mcesad & MCESA_ORIGIN_MASK);
- if (!MACHINE_HAS_VX) {
+ if (!cpu_has_vx()) {
/* Validate floating point registers */
asm volatile(
" ld 0,0(%0)\n"
diff --git a/arch/s390/kernel/perf_regs.c b/arch/s390/kernel/perf_regs.c
index 6e9e5d5e927e..3d93656bd948 100644
--- a/arch/s390/kernel/perf_regs.c
+++ b/arch/s390/kernel/perf_regs.c
@@ -20,8 +20,10 @@ u64 perf_reg_value(struct pt_regs *regs, int idx)
return 0;
idx -= PERF_REG_S390_FP0;
- fp = MACHINE_HAS_VX ? *(freg_t *)(current->thread.fpu.vxrs + idx)
- : current->thread.fpu.fprs[idx];
+ if (cpu_has_vx())
+ fp = *(freg_t *)(current->thread.fpu.vxrs + idx);
+ else
+ fp = current->thread.fpu.fprs[idx];
return fp.ui;
}
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 4a57453bfa6d..65c1464eea4f 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -201,8 +201,8 @@ static int __init setup_hwcaps(void)
if (MACHINE_HAS_TE)
elf_hwcap |= HWCAP_TE;
- /* Use MACHINE_HAS_VX instead of facility bit 129. */
- if (MACHINE_HAS_VX) {
+ /* vector */
+ if (test_facility(129)) {
elf_hwcap |= HWCAP_VXRS;
if (test_facility(134))
elf_hwcap |= HWCAP_VXRS_BCD;
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index df2ee1b88024..2e6754b62b20 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -30,6 +30,7 @@
#include <asm/switch_to.h>
#include <asm/runtime_instr.h>
#include <asm/facility.h>
+#include <asm/fpu/api.h>
#include "entry.h"
@@ -254,7 +255,7 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
* or the child->thread.fpu.vxrs array
*/
offset = addr - offsetof(struct user, regs.fp_regs.fprs);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
tmp = *(addr_t *)
((addr_t) child->thread.fpu.vxrs + 2*offset);
else
@@ -402,7 +403,7 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
* or the child->thread.fpu.vxrs array
*/
offset = addr - offsetof(struct user, regs.fp_regs.fprs);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
*(addr_t *)((addr_t)
child->thread.fpu.vxrs + 2*offset) = data;
else
@@ -629,7 +630,7 @@ static u32 __peek_user_compat(struct task_struct *child, addr_t addr)
* or the child->thread.fpu.vxrs array
*/
offset = addr - offsetof(struct compat_user, regs.fp_regs.fprs);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
tmp = *(__u32 *)
((addr_t) child->thread.fpu.vxrs + 2*offset);
else
@@ -755,7 +756,7 @@ static int __poke_user_compat(struct task_struct *child,
* or the child->thread.fpu.vxrs array
*/
offset = addr - offsetof(struct compat_user, regs.fp_regs.fprs);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
*(__u32 *)((addr_t)
child->thread.fpu.vxrs + 2*offset) = tmp;
else
@@ -911,7 +912,7 @@ static int s390_fpregs_set(struct task_struct *target,
if (target == current)
save_fpu_regs();
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
convert_vx_to_fp(fprs, target->thread.fpu.vxrs);
else
memcpy(&fprs, target->thread.fpu.fprs, sizeof(fprs));
@@ -934,7 +935,7 @@ static int s390_fpregs_set(struct task_struct *target,
if (rc)
return rc;
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
convert_fp_to_vx(target->thread.fpu.vxrs, fprs);
else
memcpy(target->thread.fpu.fprs, &fprs, sizeof(fprs));
@@ -985,7 +986,7 @@ static int s390_vxrs_low_get(struct task_struct *target,
__u64 vxrs[__NUM_VXRS_LOW];
int i;
- if (!MACHINE_HAS_VX)
+ if (!cpu_has_vx())
return -ENODEV;
if (target == current)
save_fpu_regs();
@@ -1002,7 +1003,7 @@ static int s390_vxrs_low_set(struct task_struct *target,
__u64 vxrs[__NUM_VXRS_LOW];
int i, rc;
- if (!MACHINE_HAS_VX)
+ if (!cpu_has_vx())
return -ENODEV;
if (target == current)
save_fpu_regs();
@@ -1022,7 +1023,7 @@ static int s390_vxrs_high_get(struct task_struct *target,
const struct user_regset *regset,
struct membuf to)
{
- if (!MACHINE_HAS_VX)
+ if (!cpu_has_vx())
return -ENODEV;
if (target == current)
save_fpu_regs();
@@ -1037,7 +1038,7 @@ static int s390_vxrs_high_set(struct task_struct *target,
{
int rc;
- if (!MACHINE_HAS_VX)
+ if (!cpu_has_vx())
return -ENODEV;
if (target == current)
save_fpu_regs();
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 0e926e896808..27bcc43fe1b7 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -178,7 +178,7 @@ static int save_sigregs_ext(struct pt_regs *regs,
int i;
/* Save vector registers to signal stack */
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
for (i = 0; i < __NUM_VXRS_LOW; i++)
vxrs[i] = current->thread.fpu.vxrs[i].low;
if (__copy_to_user(&sregs_ext->vxrs_low, vxrs,
@@ -198,7 +198,7 @@ static int restore_sigregs_ext(struct pt_regs *regs,
int i;
/* Restore vector registers from signal stack */
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
if (__copy_from_user(vxrs, &sregs_ext->vxrs_low,
sizeof(sregs_ext->vxrs_low)) ||
__copy_from_user(current->thread.fpu.vxrs + __NUM_VXRS_LOW,
@@ -296,7 +296,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
* included in the signal frame on a 31-bit system.
*/
frame_size = sizeof(*frame) - sizeof(frame->sregs_ext);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
frame_size += sizeof(frame->sregs_ext);
frame = get_sigframe(ka, regs, frame_size);
if (frame == (void __user *) -1UL)
@@ -373,7 +373,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
* included in the signal frame on a 31-bit system.
*/
uc_flags = 0;
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
frame_size += sizeof(_sigregs_ext);
uc_flags |= UC_VXRS;
}
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index f7fcfff09acf..c39d9f0d4b1c 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -582,7 +582,7 @@ int smp_store_status(int cpu)
if (__pcpu_sigp_relax(pcpu->address, SIGP_STORE_STATUS_AT_ADDRESS,
pa) != SIGP_CC_ORDER_CODE_ACCEPTED)
return -EIO;
- if (!MACHINE_HAS_VX && !MACHINE_HAS_GS)
+ if (!cpu_has_vx() && !MACHINE_HAS_GS)
return 0;
pa = lc->mcesad & MCESA_ORIGIN_MASK;
if (MACHINE_HAS_GS)
@@ -638,7 +638,7 @@ void __init smp_save_dump_ipl_cpu(void)
copy_oldmem_kernel(regs, __LC_FPREGS_SAVE_AREA, 512);
save_area_add_regs(sa, regs);
memblock_free(regs, 512);
- if (MACHINE_HAS_VX)
+ if (cpu_has_vx())
save_area_add_vxrs(sa, boot_cpu_vector_save_area);
}
@@ -671,7 +671,7 @@ void __init smp_save_dump_secondary_cpus(void)
panic("could not allocate memory for save area\n");
__pcpu_sigp_relax(addr, SIGP_STORE_STATUS_AT_ADDRESS, __pa(page));
save_area_add_regs(sa, page);
- if (MACHINE_HAS_VX) {
+ if (cpu_has_vx()) {
__pcpu_sigp_relax(addr, SIGP_STORE_ADDITIONAL_STATUS, __pa(page));
save_area_add_vxrs(sa, page);
}
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 8cb3832a1621..f108a611b993 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -193,7 +193,7 @@ static void vector_exception(struct pt_regs *regs)
{
int si_code, vic;
- if (!MACHINE_HAS_VX) {
+ if (!cpu_has_vx()) {
do_trap(regs, SIGILL, ILL_ILLOPN, "illegal operation");
return;
}
generated by cgit (git 2.34.1) at 2024-06-09 03:45:24 +0000