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-rw-r--r--arch/s390/include/asm/cpu_mf.h14
-rw-r--r--arch/s390/include/asm/elf.h8
-rw-r--r--arch/s390/include/asm/ftrace.h15
-rw-r--r--arch/s390/include/asm/jump_label.h7
-rw-r--r--arch/s390/include/asm/pgtable.h4
-rw-r--r--arch/s390/include/asm/processor.h5
-rw-r--r--arch/s390/include/asm/reset.h3
-rw-r--r--arch/s390/include/asm/sclp.h7
-rw-r--r--arch/s390/include/asm/setup.h3
-rw-r--r--arch/s390/include/asm/sigp.h1
-rw-r--r--arch/s390/include/asm/smp.h4
-rw-r--r--arch/s390/include/asm/sysinfo.h20
-rw-r--r--arch/s390/include/asm/topology.h4
13 files changed, 78 insertions, 17 deletions
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index cb700d54bd83..5243a8679a1d 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -189,6 +189,20 @@ static inline int ecctr(u64 ctr, u64 *val)
return cc;
}
+/* Store CPU counter multiple for the MT utilization counter set */
+static inline int stcctm5(u64 num, u64 *val)
+{
+ typedef struct { u64 _[num]; } addrtype;
+ int cc;
+
+ asm volatile (
+ " .insn rsy,0xeb0000000017,%2,5,%1\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ : "=d" (cc), "=Q" (*(addrtype *) val) : "d" (num) : "cc");
+ return cc;
+}
+
/* Query sampling information */
static inline int qsi(struct hws_qsi_info_block *info)
{
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index f6e43d39e3d8..c9df40b5c0ac 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -163,8 +163,8 @@ extern unsigned int vdso_enabled;
the loader. We need to make sure that it is out of the way of the program
that it will "exec", and that there is sufficient room for the brk. */
-extern unsigned long randomize_et_dyn(unsigned long base);
-#define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2))
+extern unsigned long randomize_et_dyn(void);
+#define ELF_ET_DYN_BASE randomize_et_dyn()
/* This yields a mask that user programs can use to figure out what
instruction set this CPU supports. */
@@ -209,7 +209,9 @@ do { \
} while (0)
#endif /* CONFIG_COMPAT */
-#define STACK_RND_MASK 0x7ffUL
+extern unsigned long mmap_rnd_mask;
+
+#define STACK_RND_MASK (mmap_rnd_mask)
#define ARCH_DLINFO \
do { \
diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h
index abb618f1ead2..836c56290499 100644
--- a/arch/s390/include/asm/ftrace.h
+++ b/arch/s390/include/asm/ftrace.h
@@ -3,8 +3,12 @@
#define ARCH_SUPPORTS_FTRACE_OPS 1
+#ifdef CC_USING_HOTPATCH
+#define MCOUNT_INSN_SIZE 6
+#else
#define MCOUNT_INSN_SIZE 24
#define MCOUNT_RETURN_FIXUP 18
+#endif
#ifndef __ASSEMBLY__
@@ -37,18 +41,29 @@ struct ftrace_insn {
static inline void ftrace_generate_nop_insn(struct ftrace_insn *insn)
{
#ifdef CONFIG_FUNCTION_TRACER
+#ifdef CC_USING_HOTPATCH
+ /* brcl 0,0 */
+ insn->opc = 0xc004;
+ insn->disp = 0;
+#else
/* jg .+24 */
insn->opc = 0xc0f4;
insn->disp = MCOUNT_INSN_SIZE / 2;
#endif
+#endif
}
static inline int is_ftrace_nop(struct ftrace_insn *insn)
{
#ifdef CONFIG_FUNCTION_TRACER
+#ifdef CC_USING_HOTPATCH
+ if (insn->disp == 0)
+ return 1;
+#else
if (insn->disp == MCOUNT_INSN_SIZE / 2)
return 1;
#endif
+#endif
return 0;
}
diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h
index 346b1c85ffb4..58642fd29c87 100644
--- a/arch/s390/include/asm/jump_label.h
+++ b/arch/s390/include/asm/jump_label.h
@@ -4,6 +4,7 @@
#include <linux/types.h>
#define JUMP_LABEL_NOP_SIZE 6
+#define JUMP_LABEL_NOP_OFFSET 2
#ifdef CONFIG_64BIT
#define ASM_PTR ".quad"
@@ -13,9 +14,13 @@
#define ASM_ALIGN ".balign 4"
#endif
+/*
+ * We use a brcl 0,2 instruction for jump labels at compile time so it
+ * can be easily distinguished from a hotpatch generated instruction.
+ */
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm_volatile_goto("0: brcl 0,0\n"
+ asm_volatile_goto("0: brcl 0,"__stringify(JUMP_LABEL_NOP_OFFSET)"\n"
".pushsection __jump_table, \"aw\"\n"
ASM_ALIGN "\n"
ASM_PTR " 0b, %l[label], %0\n"
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index aabcd3f62d3b..fbb5ee3ae57c 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1758,6 +1758,10 @@ extern int s390_enable_sie(void);
extern int s390_enable_skey(void);
extern void s390_reset_cmma(struct mm_struct *mm);
+/* s390 has a private copy of get unmapped area to deal with cache synonyms */
+#define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
+
/*
* No page table caches to initialise
*/
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index bed05ea7ec27..e7cbbdcdee13 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -215,10 +215,7 @@ static inline unsigned short stap(void)
/*
* Give up the time slice of the virtual PU.
*/
-static inline void cpu_relax(void)
-{
- barrier();
-}
+void cpu_relax(void);
#define cpu_relax_lowlatency() barrier()
diff --git a/arch/s390/include/asm/reset.h b/arch/s390/include/asm/reset.h
index 804578587a7a..72786067b300 100644
--- a/arch/s390/include/asm/reset.h
+++ b/arch/s390/include/asm/reset.h
@@ -15,5 +15,6 @@ struct reset_call {
extern void register_reset_call(struct reset_call *reset);
extern void unregister_reset_call(struct reset_call *reset);
-extern void s390_reset_system(void (*func)(void *), void *data);
+extern void s390_reset_system(void (*fn_pre)(void),
+ void (*fn_post)(void *), void *data);
#endif /* _ASM_S390_RESET_H */
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 1aba89b53cb9..edb453cfc2c6 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -27,7 +27,7 @@ struct sclp_ipl_info {
};
struct sclp_cpu_entry {
- u8 address;
+ u8 core_id;
u8 reserved0[2];
u8 : 3;
u8 siif : 1;
@@ -51,6 +51,9 @@ 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);
@@ -68,4 +71,6 @@ void sclp_early_detect(void);
int sclp_has_siif(void);
unsigned int sclp_get_ibc(void);
+long _sclp_print_early(const char *);
+
#endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 7736fdd72595..b8d1e54b4733 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -57,6 +57,7 @@ extern void detect_memory_memblock(void);
#define MACHINE_FLAG_TE (1UL << 15)
#define MACHINE_FLAG_TLB_LC (1UL << 17)
#define MACHINE_FLAG_VX (1UL << 18)
+#define MACHINE_FLAG_CAD (1UL << 19)
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
@@ -80,6 +81,7 @@ extern void detect_memory_memblock(void);
#define MACHINE_HAS_TE (0)
#define MACHINE_HAS_TLB_LC (0)
#define MACHINE_HAS_VX (0)
+#define MACHINE_HAS_CAD (0)
#else /* CONFIG_64BIT */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
@@ -93,6 +95,7 @@ extern void detect_memory_memblock(void);
#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
+#define MACHINE_HAS_CAD (S390_lowcore.machine_flags & MACHINE_FLAG_CAD)
#endif /* CONFIG_64BIT */
/*
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index fad4ae23ece0..ec60cf7fa0a2 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -16,6 +16,7 @@
#define SIGP_SET_ARCHITECTURE 18
#define SIGP_COND_EMERGENCY_SIGNAL 19
#define SIGP_SENSE_RUNNING 21
+#define SIGP_SET_MULTI_THREADING 22
#define SIGP_STORE_ADDITIONAL_STATUS 23
/* SIGP condition codes */
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 762d4f88af5a..b3bd0282dd98 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -16,6 +16,8 @@
#define raw_smp_processor_id() (S390_lowcore.cpu_nr)
extern struct mutex smp_cpu_state_mutex;
+extern unsigned int smp_cpu_mt_shift;
+extern unsigned int smp_cpu_mtid;
extern int __cpu_up(unsigned int cpu, struct task_struct *tidle);
@@ -35,6 +37,8 @@ extern void smp_fill_possible_mask(void);
#else /* CONFIG_SMP */
+#define smp_cpu_mtid 0
+
static inline void smp_call_ipl_cpu(void (*func)(void *), void *data)
{
func(data);
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index f92428e459f8..73f12d21af4d 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -90,7 +90,11 @@ struct sysinfo_2_2_2 {
unsigned short cpus_reserved;
char name[8];
unsigned int caf;
- char reserved_2[16];
+ char reserved_2[8];
+ unsigned char mt_installed;
+ unsigned char mt_general;
+ unsigned char mt_psmtid;
+ char reserved_3[5];
unsigned short cpus_dedicated;
unsigned short cpus_shared;
};
@@ -120,26 +124,28 @@ struct sysinfo_3_2_2 {
extern int topology_max_mnest;
-#define TOPOLOGY_CPU_BITS 64
+#define TOPOLOGY_CORE_BITS 64
#define TOPOLOGY_NR_MAG 6
-struct topology_cpu {
- unsigned char reserved0[4];
+struct topology_core {
+ unsigned char nl;
+ unsigned char reserved0[3];
unsigned char :6;
unsigned char pp:2;
unsigned char reserved1;
unsigned short origin;
- unsigned long mask[TOPOLOGY_CPU_BITS / BITS_PER_LONG];
+ unsigned long mask[TOPOLOGY_CORE_BITS / BITS_PER_LONG];
};
struct topology_container {
- unsigned char reserved[7];
+ unsigned char nl;
+ unsigned char reserved[6];
unsigned char id;
};
union topology_entry {
unsigned char nl;
- struct topology_cpu cpu;
+ struct topology_core cpu;
struct topology_container container;
};
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 56af53093d24..c4fbb9527c5c 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -9,9 +9,11 @@ struct cpu;
#ifdef CONFIG_SCHED_BOOK
struct cpu_topology_s390 {
+ unsigned short thread_id;
unsigned short core_id;
unsigned short socket_id;
unsigned short book_id;
+ cpumask_t thread_mask;
cpumask_t core_mask;
cpumask_t book_mask;
};
@@ -19,6 +21,8 @@ struct cpu_topology_s390 {
extern struct cpu_topology_s390 cpu_topology[NR_CPUS];
#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id)
+#define topology_thread_id(cpu) (cpu_topology[cpu].thread_id)
+#define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_mask)
#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask)
#define topology_book_id(cpu) (cpu_topology[cpu].book_id)
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-13 13:22:17 +0300