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-rw-r--r--arch/s390/include/asm/Kbuild1
-rw-r--r--arch/s390/include/asm/alternative.h1
-rw-r--r--arch/s390/include/asm/ap.h5
-rw-r--r--arch/s390/include/asm/bugs.h1
-rw-r--r--arch/s390/include/asm/perf_event.h1
-rw-r--r--arch/s390/include/asm/pgtable.h6
-rw-r--r--arch/s390/include/asm/ptrace.h11
-rw-r--r--arch/s390/include/asm/segment.h1
-rw-r--r--arch/s390/include/asm/switch_to.h27
-rw-r--r--arch/s390/include/asm/vga.h1
-rw-r--r--arch/s390/include/uapi/asm/Kbuild1
-rw-r--r--arch/s390/include/uapi/asm/bpf_perf_event.h9
-rw-r--r--arch/s390/include/uapi/asm/perf_regs.h1
-rw-r--r--arch/s390/include/uapi/asm/ptrace.h125
-rw-r--r--arch/s390/include/uapi/asm/sthyi.h1
-rw-r--r--arch/s390/include/uapi/asm/virtio-ccw.h2
-rw-r--r--arch/s390/include/uapi/asm/vmcp.h1
17 files changed, 103 insertions, 92 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 41c211a4d8b1..048450869328 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
generic-y += asm-offsets.h
generic-y += cacheflush.h
generic-y += clkdev.h
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h
index a72002056b54..c2cf7bcdef9b 100644
--- a/arch/s390/include/asm/alternative.h
+++ b/arch/s390/include/asm/alternative.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390_ALTERNATIVE_H
#define _ASM_S390_ALTERNATIVE_H
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
index c02f4aba88a6..cfce6835b109 100644
--- a/arch/s390/include/asm/ap.h
+++ b/arch/s390/include/asm/ap.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Adjunct processor (AP) interfaces
*
* Copyright IBM Corp. 2017
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
* Author(s): Tony Krowiak <akrowia@linux.vnet.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Harald Freudenberger <freude@de.ibm.com>
diff --git a/arch/s390/include/asm/bugs.h b/arch/s390/include/asm/bugs.h
index 0f5bd894f4dc..aa42a179be33 100644
--- a/arch/s390/include/asm/bugs.h
+++ b/arch/s390/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* S390 version
* Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index d6c9d1e0dc2d..b9c0e361748b 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -40,6 +40,7 @@ struct pt_regs;
extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
extern unsigned long perf_misc_flags(struct pt_regs *regs);
#define perf_misc_flags(regs) perf_misc_flags(regs)
+#define perf_arch_bpf_user_pt_regs(regs) &regs->user_regs
/* Perf pt_regs extension for sample-data-entry indicators */
struct perf_sf_sde_regs {
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 57d7bc92e0b8..0a6b0286c32e 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1264,12 +1264,6 @@ static inline pud_t pud_mkwrite(pud_t pud)
return pud;
}
-#define pud_write pud_write
-static inline int pud_write(pud_t pud)
-{
- return (pud_val(pud) & _REGION3_ENTRY_WRITE) != 0;
-}
-
static inline pud_t pud_mkclean(pud_t pud)
{
if (pud_large(pud)) {
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index a3788dafc0e1..6f70d81c40f2 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -74,9 +74,14 @@ enum {
*/
struct pt_regs
{
- unsigned long args[1];
- psw_t psw;
- unsigned long gprs[NUM_GPRS];
+ union {
+ user_pt_regs user_regs;
+ struct {
+ unsigned long args[1];
+ psw_t psw;
+ unsigned long gprs[NUM_GPRS];
+ };
+ };
unsigned long orig_gpr2;
unsigned int int_code;
unsigned int int_parm;
diff --git a/arch/s390/include/asm/segment.h b/arch/s390/include/asm/segment.h
index 8bfce3475b1c..97a0582b8d0f 100644
--- a/arch/s390/include/asm/segment.h
+++ b/arch/s390/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_SEGMENT_H
#define _ASM_SEGMENT_H
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index ec7b476c1ac5..c61b2cc1a8a8 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -30,21 +30,20 @@ static inline void restore_access_regs(unsigned int *acrs)
asm volatile("lam 0,15,%0" : : "Q" (*(acrstype *)acrs));
}
-#define switch_to(prev,next,last) do { \
- if (prev->mm) { \
- save_fpu_regs(); \
- save_access_regs(&prev->thread.acrs[0]); \
- save_ri_cb(prev->thread.ri_cb); \
- save_gs_cb(prev->thread.gs_cb); \
- } \
+#define switch_to(prev, next, last) do { \
+ /* save_fpu_regs() sets the CIF_FPU flag, which enforces \
+ * a restore of the floating point / vector registers as \
+ * soon as the next task returns to user space \
+ */ \
+ save_fpu_regs(); \
+ save_access_regs(&prev->thread.acrs[0]); \
+ save_ri_cb(prev->thread.ri_cb); \
+ save_gs_cb(prev->thread.gs_cb); \
update_cr_regs(next); \
- if (next->mm) { \
- set_cpu_flag(CIF_FPU); \
- restore_access_regs(&next->thread.acrs[0]); \
- restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb); \
- restore_gs_cb(next->thread.gs_cb); \
- } \
- prev = __switch_to(prev,next); \
+ restore_access_regs(&next->thread.acrs[0]); \
+ restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb); \
+ restore_gs_cb(next->thread.gs_cb); \
+ prev = __switch_to(prev, next); \
} while (0)
#endif /* __ASM_SWITCH_TO_H */
diff --git a/arch/s390/include/asm/vga.h b/arch/s390/include/asm/vga.h
index d375526c261f..605dc46bac5e 100644
--- a/arch/s390/include/asm/vga.h
+++ b/arch/s390/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390_VGA_H
#define _ASM_S390_VGA_H
diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
index 098f28778a13..92b7c9b3e641 100644
--- a/arch/s390/include/uapi/asm/Kbuild
+++ b/arch/s390/include/uapi/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
diff --git a/arch/s390/include/uapi/asm/bpf_perf_event.h b/arch/s390/include/uapi/asm/bpf_perf_event.h
new file mode 100644
index 000000000000..cefe7c7cd4f6
--- /dev/null
+++ b/arch/s390/include/uapi/asm/bpf_perf_event.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _UAPI__ASM_BPF_PERF_EVENT_H__
+#define _UAPI__ASM_BPF_PERF_EVENT_H__
+
+#include <asm/ptrace.h>
+
+typedef user_pt_regs bpf_user_pt_regs_t;
+
+#endif /* _UAPI__ASM_BPF_PERF_EVENT_H__ */
diff --git a/arch/s390/include/uapi/asm/perf_regs.h b/arch/s390/include/uapi/asm/perf_regs.h
index 7c8564f98205..d17dd9e5d516 100644
--- a/arch/s390/include/uapi/asm/perf_regs.h
+++ b/arch/s390/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_S390_PERF_REGS_H
#define _ASM_S390_PERF_REGS_H
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index 0d23c8ff2900..543dd70e12c8 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -162,7 +162,7 @@
#define GPR_SIZE 8
#define CR_SIZE 8
-#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */
+#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */
#endif /* __s390x__ */
@@ -179,17 +179,16 @@
#define ACR_SIZE 4
-#define PTRACE_OLDSETOPTIONS 21
+#define PTRACE_OLDSETOPTIONS 21
#ifndef __ASSEMBLY__
#include <linux/stddef.h>
#include <linux/types.h>
-typedef union
-{
- float f;
- double d;
- __u64 ui;
+typedef union {
+ float f;
+ double d;
+ __u64 ui;
struct
{
__u32 hi;
@@ -197,23 +196,21 @@ typedef union
} fp;
} freg_t;
-typedef struct
-{
- __u32 fpc;
+typedef struct {
+ __u32 fpc;
__u32 pad;
- freg_t fprs[NUM_FPRS];
+ freg_t fprs[NUM_FPRS];
} s390_fp_regs;
-#define FPC_EXCEPTION_MASK 0xF8000000
-#define FPC_FLAGS_MASK 0x00F80000
-#define FPC_DXC_MASK 0x0000FF00
-#define FPC_RM_MASK 0x00000003
+#define FPC_EXCEPTION_MASK 0xF8000000
+#define FPC_FLAGS_MASK 0x00F80000
+#define FPC_DXC_MASK 0x0000FF00
+#define FPC_RM_MASK 0x00000003
/* this typedef defines how a Program Status Word looks like */
-typedef struct
-{
- unsigned long mask;
- unsigned long addr;
+typedef struct {
+ unsigned long mask;
+ unsigned long addr;
} __attribute__ ((aligned(8))) psw_t;
#ifndef __s390x__
@@ -282,8 +279,7 @@ typedef struct
/*
* The s390_regs structure is used to define the elf_gregset_t.
*/
-typedef struct
-{
+typedef struct {
psw_t psw;
unsigned long gprs[NUM_GPRS];
unsigned int acrs[NUM_ACRS];
@@ -291,24 +287,32 @@ typedef struct
} s390_regs;
/*
+ * The user_pt_regs structure exports the beginning of
+ * the in-kernel pt_regs structure to user space.
+ */
+typedef struct {
+ unsigned long args[1];
+ psw_t psw;
+ unsigned long gprs[NUM_GPRS];
+} user_pt_regs;
+
+/*
* Now for the user space program event recording (trace) definitions.
* The following structures are used only for the ptrace interface, don't
* touch or even look at it if you don't want to modify the user-space
* ptrace interface. In particular stay away from it for in-kernel PER.
*/
-typedef struct
-{
+typedef struct {
unsigned long cr[NUM_CR_WORDS];
} per_cr_words;
#define PER_EM_MASK 0xE8000000UL
-typedef struct
-{
+typedef struct {
#ifdef __s390x__
- unsigned : 32;
+ unsigned : 32;
#endif /* __s390x__ */
- unsigned em_branching : 1;
+ unsigned em_branching : 1;
unsigned em_instruction_fetch : 1;
/*
* Switching on storage alteration automatically fixes
@@ -317,44 +321,41 @@ typedef struct
unsigned em_storage_alteration : 1;
unsigned em_gpr_alt_unused : 1;
unsigned em_store_real_address : 1;
- unsigned : 3;
+ unsigned : 3;
unsigned branch_addr_ctl : 1;
- unsigned : 1;
+ unsigned : 1;
unsigned storage_alt_space_ctl : 1;
- unsigned : 21;
+ unsigned : 21;
unsigned long starting_addr;
unsigned long ending_addr;
} per_cr_bits;
-typedef struct
-{
+typedef struct {
unsigned short perc_atmid;
unsigned long address;
unsigned char access_id;
} per_lowcore_words;
-typedef struct
-{
- unsigned perc_branching : 1;
+typedef struct {
+ unsigned perc_branching : 1;
unsigned perc_instruction_fetch : 1;
unsigned perc_storage_alteration : 1;
- unsigned perc_gpr_alt_unused : 1;
+ unsigned perc_gpr_alt_unused : 1;
unsigned perc_store_real_address : 1;
- unsigned : 3;
- unsigned atmid_psw_bit_31 : 1;
- unsigned atmid_validity_bit : 1;
- unsigned atmid_psw_bit_32 : 1;
- unsigned atmid_psw_bit_5 : 1;
- unsigned atmid_psw_bit_16 : 1;
- unsigned atmid_psw_bit_17 : 1;
- unsigned si : 2;
+ unsigned : 3;
+ unsigned atmid_psw_bit_31 : 1;
+ unsigned atmid_validity_bit : 1;
+ unsigned atmid_psw_bit_32 : 1;
+ unsigned atmid_psw_bit_5 : 1;
+ unsigned atmid_psw_bit_16 : 1;
+ unsigned atmid_psw_bit_17 : 1;
+ unsigned si : 2;
unsigned long address;
- unsigned : 4;
- unsigned access_id : 4;
+ unsigned : 4;
+ unsigned access_id : 4;
} per_lowcore_bits;
-typedef struct
-{
+typedef struct {
union {
per_cr_words words;
per_cr_bits bits;
@@ -364,9 +365,9 @@ typedef struct
* the kernel always sets them to zero. To enable single
* stepping use ptrace(PTRACE_SINGLESTEP) instead.
*/
- unsigned single_step : 1;
+ unsigned single_step : 1;
unsigned instruction_fetch : 1;
- unsigned : 30;
+ unsigned : 30;
/*
* These addresses are copied into cr10 & cr11 if single
* stepping is switched off
@@ -376,11 +377,10 @@ typedef struct
union {
per_lowcore_words words;
per_lowcore_bits bits;
- } lowcore;
+ } lowcore;
} per_struct;
-typedef struct
-{
+typedef struct {
unsigned int len;
unsigned long kernel_addr;
unsigned long process_addr;
@@ -390,12 +390,12 @@ typedef struct
* S/390 specific non posix ptrace requests. I chose unusual values so
* they are unlikely to clash with future ptrace definitions.
*/
-#define PTRACE_PEEKUSR_AREA 0x5000
-#define PTRACE_POKEUSR_AREA 0x5001
+#define PTRACE_PEEKUSR_AREA 0x5000
+#define PTRACE_POKEUSR_AREA 0x5001
#define PTRACE_PEEKTEXT_AREA 0x5002
#define PTRACE_PEEKDATA_AREA 0x5003
#define PTRACE_POKETEXT_AREA 0x5004
-#define PTRACE_POKEDATA_AREA 0x5005
+#define PTRACE_POKEDATA_AREA 0x5005
#define PTRACE_GET_LAST_BREAK 0x5006
#define PTRACE_PEEK_SYSTEM_CALL 0x5007
#define PTRACE_POKE_SYSTEM_CALL 0x5008
@@ -413,21 +413,19 @@ typedef struct
* PT_PROT definition is loosely based on hppa bsd definition in
* gdb/hppab-nat.c
*/
-#define PTRACE_PROT 21
+#define PTRACE_PROT 21
-typedef enum
-{
+typedef enum {
ptprot_set_access_watchpoint,
ptprot_set_write_watchpoint,
ptprot_disable_watchpoint
} ptprot_flags;
-typedef struct
-{
+typedef struct {
unsigned long lowaddr;
unsigned long hiaddr;
ptprot_flags prot;
-} ptprot_area;
+} ptprot_area;
/* Sequence of bytes for breakpoint illegal instruction. */
#define S390_BREAKPOINT {0x0,0x1}
@@ -439,8 +437,7 @@ typedef struct
* The user_regs_struct defines the way the user registers are
* store on the stack for signal handling.
*/
-struct user_regs_struct
-{
+struct user_regs_struct {
psw_t psw;
unsigned long gprs[NUM_GPRS];
unsigned int acrs[NUM_ACRS];
diff --git a/arch/s390/include/uapi/asm/sthyi.h b/arch/s390/include/uapi/asm/sthyi.h
index ec113db4eb7e..b1b022316983 100644
--- a/arch/s390/include/uapi/asm/sthyi.h
+++ b/arch/s390/include/uapi/asm/sthyi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_STHYI_H
#define _UAPI_ASM_STHYI_H
diff --git a/arch/s390/include/uapi/asm/virtio-ccw.h b/arch/s390/include/uapi/asm/virtio-ccw.h
index 3a77833c74dc..2b605f7e8483 100644
--- a/arch/s390/include/uapi/asm/virtio-ccw.h
+++ b/arch/s390/include/uapi/asm/virtio-ccw.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* Definitions for virtio-ccw devices.
*
diff --git a/arch/s390/include/uapi/asm/vmcp.h b/arch/s390/include/uapi/asm/vmcp.h
index 4caf71714a55..aeaaa030030e 100644
--- a/arch/s390/include/uapi/asm/vmcp.h
+++ b/arch/s390/include/uapi/asm/vmcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright IBM Corp. 2004, 2005
* Interface implementation for communication with the z/VM control program
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.