10 files changed, 38 insertions, 23 deletions

diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index faf6caa510dc..c4f7a3d655b8 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -217,3 +217,4 @@ COMPAT_SYSCALL_WRAP5(renameat2, int, olddfd, const char __user *, oldname, int,
 COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, const char __user *, uargs)
 COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags)
 COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags)
+COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 51d14fe5eb9a..ca1cabb3a96c 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -121,6 +121,8 @@ unsigned long __kprobes prepare_ftrace_return(unsigned long parent,
 {
         struct ftrace_graph_ent trace;
 
+        if (unlikely(ftrace_graph_is_dead()))
+                goto out;
         if (unlikely(atomic_read(&current->tracing_graph_pause)))
                 goto out;
         ip = (ip & PSW_ADDR_INSN) - MCOUNT_INSN_SIZE;
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 08e761318c17..b878f12a9597 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1411,11 +1411,6 @@ static void cpumsf_pmu_del(struct perf_event *event, int flags)
         perf_pmu_enable(event->pmu);
 }
 
-static int cpumsf_pmu_event_idx(struct perf_event *event)
-{
-        return event->hw.idx;
-}
-
 CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC, PERF_EVENT_CPUM_SF);
 CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC_DIAG, PERF_EVENT_CPUM_SF_DIAG);
 
@@ -1458,7 +1453,6 @@ static struct pmu cpumf_sampling = {
         .stop         = cpumsf_pmu_stop,
         .read         = cpumsf_pmu_read,
 
-        .event_idx    = cpumsf_pmu_event_idx,
         .attr_groups  = cpumsf_pmu_attr_groups,
 };
 
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 6fe886ac2db5..9f7087fd58de 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -359,3 +359,4 @@ SYSCALL(sys_renameat2,sys_renameat2,compat_sys_renameat2)
 SYSCALL(sys_seccomp,sys_seccomp,compat_sys_seccomp)
 SYSCALL(sys_getrandom,sys_getrandom,compat_sys_getrandom)
 SYSCALL(sys_memfd_create,sys_memfd_create,compat_sys_memfd_create) /* 350 */
+SYSCALL(sys_bpf,sys_bpf,compat_sys_bpf)
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index 956f4f7a591c..f6b3cd056ec2 100644
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -5,13 +5,13 @@
  *    Author(s): Jan Willeke,
  */
 
-#include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/uprobes.h>
 #include <linux/compat.h>
 #include <linux/kdebug.h>
 #include <asm/switch_to.h>
 #include <asm/facility.h>
+#include <asm/kprobes.h>
 #include <asm/dis.h>
 #include "entry.h"
 
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S
index 48c2206a3956..5eec9afbb5b5 100644
--- a/arch/s390/kernel/vdso32/clock_gettime.S
+++ b/arch/s390/kernel/vdso32/clock_gettime.S
@@ -19,6 +19,7 @@
         .type  __kernel_clock_gettime,@function
 __kernel_clock_gettime:
         .cfi_startproc
+        ahi     %r15,-16
         basr    %r5,0
 0:      al      %r5,21f-0b(%r5)                 /* get &_vdso_data */
         chi     %r2,__CLOCK_REALTIME_COARSE
@@ -34,8 +35,8 @@ __kernel_clock_gettime:
 1:      l       %r4,__VDSO_UPD_COUNT+4(%r5)     /* load update counter */
         tml     %r4,0x0001                      /* pending update ? loop */
         jnz     1b
-        stcke   24(%r15)                        /* Store TOD clock */
-        lm      %r0,%r1,25(%r15)
+        stcke   0(%r15)                         /* Store TOD clock */
+        lm      %r0,%r1,1(%r15)
         s       %r0,__VDSO_XTIME_STAMP(%r5)     /* TOD - cycle_last */
         sl      %r1,__VDSO_XTIME_STAMP+4(%r5)
         brc     3,2f
@@ -70,6 +71,7 @@ __kernel_clock_gettime:
 8:      st      %r2,0(%r3)                      /* store tp->tv_sec */
         st      %r1,4(%r3)                      /* store tp->tv_nsec */
         lhi     %r2,0
+        ahi     %r15,16
         br      %r14
 
         /* CLOCK_MONOTONIC_COARSE */
@@ -96,8 +98,8 @@ __kernel_clock_gettime:
 11:     l       %r4,__VDSO_UPD_COUNT+4(%r5)     /* load update counter */
         tml     %r4,0x0001                      /* pending update ? loop */
         jnz     11b
-        stcke   24(%r15)                        /* Store TOD clock */
-        lm      %r0,%r1,25(%r15)
+        stcke   0(%r15)                         /* Store TOD clock */
+        lm      %r0,%r1,1(%r15)
         s       %r0,__VDSO_XTIME_STAMP(%r5)     /* TOD - cycle_last */
         sl      %r1,__VDSO_XTIME_STAMP+4(%r5)
         brc     3,12f
@@ -132,11 +134,13 @@ __kernel_clock_gettime:
 17:     st      %r2,0(%r3)                      /* store tp->tv_sec */
         st      %r1,4(%r3)                      /* store tp->tv_nsec */
         lhi     %r2,0
+        ahi     %r15,16
         br      %r14
 
         /* Fallback to system call */
 19:     lhi     %r1,__NR_clock_gettime
         svc     0
+        ahi     %r15,16
         br      %r14
 
 20:     .long   1000000000
diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S
index 60def5f562db..719de6186b20 100644
--- a/arch/s390/kernel/vdso32/gettimeofday.S
+++ b/arch/s390/kernel/vdso32/gettimeofday.S
@@ -19,6 +19,7 @@
         .type  __kernel_gettimeofday,@function
 __kernel_gettimeofday:
         .cfi_startproc
+        ahi     %r15,-16
         basr    %r5,0
 0:      al      %r5,13f-0b(%r5)                 /* get &_vdso_data */
 1:      ltr     %r3,%r3                         /* check if tz is NULL */
@@ -29,30 +30,30 @@ __kernel_gettimeofday:
         l       %r4,__VDSO_UPD_COUNT+4(%r5)     /* load update counter */
         tml     %r4,0x0001                      /* pending update ? loop */
         jnz     1b
-        stcke   24(%r15)                        /* Store TOD clock */
-        lm      %r0,%r1,25(%r15)
+        stcke   0(%r15)                         /* Store TOD clock */
+        lm      %r0,%r1,1(%r15)
         s       %r0,__VDSO_XTIME_STAMP(%r5)     /* TOD - cycle_last */
         sl      %r1,__VDSO_XTIME_STAMP+4(%r5)
         brc     3,3f
         ahi     %r0,-1
 3:      ms      %r0,__VDSO_TK_MULT(%r5)         /*  * tk->mult */
-        st      %r0,24(%r15)
+        st      %r0,0(%r15)
         l       %r0,__VDSO_TK_MULT(%r5)
         ltr     %r1,%r1
         mr      %r0,%r0
         jnm     4f
         a       %r0,__VDSO_TK_MULT(%r5)
-4:      al      %r0,24(%r15)
+4:      al      %r0,0(%r15)
         al      %r0,__VDSO_XTIME_NSEC(%r5)      /*  + xtime */
         al      %r1,__VDSO_XTIME_NSEC+4(%r5)
         brc     12,5f
         ahi     %r0,1
-5:      mvc     24(4,%r15),__VDSO_XTIME_SEC+4(%r5)
+5:      mvc     0(4,%r15),__VDSO_XTIME_SEC+4(%r5)
         cl      %r4,__VDSO_UPD_COUNT+4(%r5)     /* check update counter */
         jne     1b
         l       %r4,__VDSO_TK_SHIFT(%r5)        /* Timekeeper shift */
         srdl    %r0,0(%r4)                      /*  >> tk->shift */
-        l       %r4,24(%r15)                    /* get tv_sec from stack */
+        l       %r4,0(%r15)                     /* get tv_sec from stack */
         basr    %r5,0
 6:      ltr     %r0,%r0
         jnz     7f
@@ -71,6 +72,7 @@ __kernel_gettimeofday:
 9:      srl     %r0,6
         st      %r0,4(%r2)                      /* store tv->tv_usec */
 10:     slr     %r2,%r2
+        ahi     %r15,16
         br      %r14
 11:     .long   1000000000
 12:     .long   274877907
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S
index 9d9761f8e110..7699e735ae28 100644
--- a/arch/s390/kernel/vdso64/clock_gettime.S
+++ b/arch/s390/kernel/vdso64/clock_gettime.S
@@ -19,6 +19,7 @@
         .type  __kernel_clock_gettime,@function
 __kernel_clock_gettime:
         .cfi_startproc
+        aghi    %r15,-16
         larl    %r5,_vdso_data
         cghi    %r2,__CLOCK_REALTIME_COARSE
         je      4f
@@ -37,10 +38,10 @@ __kernel_clock_gettime:
 0:      lg      %r4,__VDSO_UPD_COUNT(%r5)       /* load update counter */
         tmll    %r4,0x0001                      /* pending update ? loop */
         jnz     0b
-        stcke   48(%r15)                        /* Store TOD clock */
+        stcke   0(%r15)                         /* Store TOD clock */
         lgf     %r2,__VDSO_TK_SHIFT(%r5)        /* Timekeeper shift */
         lg      %r0,__VDSO_WTOM_SEC(%r5)
-        lg      %r1,49(%r15)
+        lg      %r1,1(%r15)
         sg      %r1,__VDSO_XTIME_STAMP(%r5)     /* TOD - cycle_last */
         msgf    %r1,__VDSO_TK_MULT(%r5)         /*  * tk->mult */
         alg     %r1,__VDSO_WTOM_NSEC(%r5)
@@ -56,6 +57,7 @@ __kernel_clock_gettime:
 2:      stg     %r0,0(%r3)                      /* store tp->tv_sec */
         stg     %r1,8(%r3)                      /* store tp->tv_nsec */
         lghi    %r2,0
+        aghi    %r15,16
         br      %r14
 
         /* CLOCK_MONOTONIC_COARSE */
@@ -82,9 +84,9 @@ __kernel_clock_gettime:
 5:      lg      %r4,__VDSO_UPD_COUNT(%r5)       /* load update counter */
         tmll    %r4,0x0001                      /* pending update ? loop */
         jnz     5b
-        stcke   48(%r15)                        /* Store TOD clock */
+        stcke   0(%r15)                         /* Store TOD clock */
         lgf     %r2,__VDSO_TK_SHIFT(%r5)        /* Timekeeper shift */
-        lg      %r1,49(%r15)
+        lg      %r1,1(%r15)
         sg      %r1,__VDSO_XTIME_STAMP(%r5)     /* TOD - cycle_last */
         msgf    %r1,__VDSO_TK_MULT(%r5)         /*  * tk->mult */
         alg     %r1,__VDSO_XTIME_NSEC(%r5)      /*  + tk->xtime_nsec */
@@ -101,6 +103,7 @@ __kernel_clock_gettime:
 7:      stg     %r0,0(%r3)                      /* store tp->tv_sec */
         stg     %r1,8(%r3)                      /* store tp->tv_nsec */
         lghi    %r2,0
+        aghi    %r15,16
         br      %r14
 
         /* CLOCK_THREAD_CPUTIME_ID for this thread */
@@ -134,11 +137,13 @@ __kernel_clock_gettime:
         slgr    %r4,%r0                         /* r4 = tv_nsec */
         stg     %r4,8(%r3)
         lghi    %r2,0
+        aghi    %r15,16
         br      %r14
 
         /* Fallback to system call */
 12:     lghi    %r1,__NR_clock_gettime
         svc     0
+        aghi    %r15,16
         br      %r14
 
 13:     .quad   1000000000
diff --git a/arch/s390/kernel/vdso64/gettimeofday.S b/arch/s390/kernel/vdso64/gettimeofday.S
index 7a344995a97f..6ce46707663c 100644
--- a/arch/s390/kernel/vdso64/gettimeofday.S
+++ b/arch/s390/kernel/vdso64/gettimeofday.S
@@ -19,6 +19,7 @@
         .type  __kernel_gettimeofday,@function
 __kernel_gettimeofday:
         .cfi_startproc
+        aghi    %r15,-16
         larl    %r5,_vdso_data
 0:      ltgr    %r3,%r3                         /* check if tz is NULL */
         je      1f
@@ -28,8 +29,8 @@ __kernel_gettimeofday:
         lg      %r4,__VDSO_UPD_COUNT(%r5)       /* load update counter */
         tmll    %r4,0x0001                      /* pending update ? loop */
         jnz     0b
-        stcke   48(%r15)                        /* Store TOD clock */
-        lg      %r1,49(%r15)
+        stcke   0(%r15)                         /* Store TOD clock */
+        lg      %r1,1(%r15)
         sg      %r1,__VDSO_XTIME_STAMP(%r5)     /* TOD - cycle_last */
         msgf    %r1,__VDSO_TK_MULT(%r5)         /*  * tk->mult */
         alg     %r1,__VDSO_XTIME_NSEC(%r5)      /*  + tk->xtime_nsec */
@@ -50,6 +51,7 @@ __kernel_gettimeofday:
         srlg    %r0,%r0,6
         stg     %r0,8(%r2)                      /* store tv->tv_usec */
 4:      lghi    %r2,0
+        aghi    %r15,16
         br      %r14
 5:      .quad   1000000000
         .long   274877907
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 416f2a323ba5..7f0089d9a4aa 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -66,7 +66,11 @@ static int do_account_vtime(struct task_struct *tsk, int hardirq_offset)
         clock = S390_lowcore.last_update_clock;
         asm volatile(
                 "       stpt    %0\n"   /* Store current cpu timer value */
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
+                "       stckf   %1"     /* Store current tod clock value */
+#else
                 "       stck    %1"     /* Store current tod clock value */
+#endif
                 : "=m" (S390_lowcore.last_update_timer),
                   "=m" (S390_lowcore.last_update_clock));
         S390_lowcore.system_timer += timer - S390_lowcore.last_update_timer;