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-rw-r--r--arch/x86/include/asm/cpufeatures.h3
-rw-r--r--arch/x86/include/asm/kdebug.h1
-rw-r--r--arch/x86/include/asm/processor.h14
-rw-r--r--arch/x86/include/asm/stacktrace.h8
-rw-r--r--arch/x86/include/asm/unwind.h16
-rw-r--r--arch/x86/include/asm/vgtod.h7
-rw-r--r--arch/x86/include/uapi/asm/prctl.h8
7 files changed, 42 insertions, 15 deletions
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index d625b651e526..4dba597c5807 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -227,6 +227,7 @@
#define X86_FEATURE_RDSEED ( 9*32+18) /* The RDSEED instruction */
#define X86_FEATURE_ADX ( 9*32+19) /* The ADCX and ADOX instructions */
#define X86_FEATURE_SMAP ( 9*32+20) /* Supervisor Mode Access Prevention */
+#define X86_FEATURE_AVX512IFMA ( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
#define X86_FEATURE_CLFLUSHOPT ( 9*32+23) /* CLFLUSHOPT instruction */
#define X86_FEATURE_CLWB ( 9*32+24) /* CLWB instruction */
#define X86_FEATURE_AVX512PF ( 9*32+26) /* AVX-512 Prefetch */
@@ -280,8 +281,10 @@
#define X86_FEATURE_AVIC (15*32+13) /* Virtual Interrupt Controller */
/* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
+#define X86_FEATURE_AVX512VBMI (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
#define X86_FEATURE_PKU (16*32+ 3) /* Protection Keys for Userspace */
#define X86_FEATURE_OSPKE (16*32+ 4) /* OS Protection Keys Enable */
+#define X86_FEATURE_RDPID (16*32+ 22) /* RDPID instruction */
/* AMD-defined CPU features, CPUID level 0x80000007 (ebx), word 17 */
#define X86_FEATURE_OVERFLOW_RECOV (17*32+0) /* MCA overflow recovery support */
diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index d31881188431..29a594a3b82a 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -21,7 +21,6 @@ enum die_val {
DIE_NMIUNKNOWN,
};
-extern void printk_address(unsigned long address);
extern void die(const char *, struct pt_regs *,long);
extern int __must_check __die(const char *, struct pt_regs *, long);
extern void show_stack_regs(struct pt_regs *regs);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index c84605bb2a15..1f6a92903b09 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -137,6 +137,17 @@ struct cpuinfo_x86 {
u32 microcode;
};
+struct cpuid_regs {
+ u32 eax, ebx, ecx, edx;
+};
+
+enum cpuid_regs_idx {
+ CPUID_EAX = 0,
+ CPUID_EBX,
+ CPUID_ECX,
+ CPUID_EDX,
+};
+
#define X86_VENDOR_INTEL 0
#define X86_VENDOR_CYRIX 1
#define X86_VENDOR_AMD 2
@@ -178,6 +189,9 @@ extern void identify_secondary_cpu(struct cpuinfo_x86 *);
extern void print_cpu_info(struct cpuinfo_x86 *);
void print_cpu_msr(struct cpuinfo_x86 *);
extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
+extern u32 get_scattered_cpuid_leaf(unsigned int level,
+ unsigned int sub_leaf,
+ enum cpuid_regs_idx reg);
extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
extern void init_amd_cacheinfo(struct cpuinfo_x86 *c);
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
index 37f2e0b377ad..a3269c897ec5 100644
--- a/arch/x86/include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -30,8 +30,7 @@ bool in_task_stack(unsigned long *stack, struct task_struct *task,
int get_stack_info(unsigned long *stack, struct task_struct *task,
struct stack_info *info, unsigned long *visit_mask);
-void stack_type_str(enum stack_type type, const char **begin,
- const char **end);
+const char *stack_type_name(enum stack_type type);
static inline bool on_stack(struct stack_info *info, void *addr, size_t len)
{
@@ -43,8 +42,6 @@ static inline bool on_stack(struct stack_info *info, void *addr, size_t len)
addr + len > begin && addr + len <= end);
}
-extern int kstack_depth_to_print;
-
#ifdef CONFIG_X86_32
#define STACKSLOTS_PER_LINE 8
#else
@@ -86,9 +83,6 @@ get_stack_pointer(struct task_struct *task, struct pt_regs *regs)
void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack, char *log_lvl);
-void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
- unsigned long *sp, char *log_lvl);
-
extern unsigned int code_bytes;
/* The form of the top of the frame on the stack */
diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h
index 46de9ac4b990..c5a7f3a930dd 100644
--- a/arch/x86/include/asm/unwind.h
+++ b/arch/x86/include/asm/unwind.h
@@ -13,6 +13,7 @@ struct unwind_state {
int graph_idx;
#ifdef CONFIG_FRAME_POINTER
unsigned long *bp;
+ struct pt_regs *regs;
#else
unsigned long *sp;
#endif
@@ -47,7 +48,15 @@ unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
if (unwind_done(state))
return NULL;
- return state->bp + 1;
+ return state->regs ? &state->regs->ip : state->bp + 1;
+}
+
+static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
+{
+ if (unwind_done(state))
+ return NULL;
+
+ return state->regs;
}
#else /* !CONFIG_FRAME_POINTER */
@@ -58,6 +67,11 @@ unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
return NULL;
}
+static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
+{
+ return NULL;
+}
+
#endif /* CONFIG_FRAME_POINTER */
#endif /* _ASM_X86_UNWIND_H */
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index e728699db774..3a01996db58f 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -89,8 +89,13 @@ static inline unsigned int __getcpu(void)
* works on all CPUs. This is volatile so that it orders
* correctly wrt barrier() and to keep gcc from cleverly
* hoisting it out of the calling function.
+ *
+ * If RDPID is available, use it.
*/
- asm volatile ("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
+ alternative_io ("lsl %[p],%[seg]",
+ ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */
+ X86_FEATURE_RDPID,
+ [p] "=a" (p), [seg] "r" (__PER_CPU_SEG));
return p;
}
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h
index ae135de547f5..835aa51c7f6e 100644
--- a/arch/x86/include/uapi/asm/prctl.h
+++ b/arch/x86/include/uapi/asm/prctl.h
@@ -6,10 +6,8 @@
#define ARCH_GET_FS 0x1003
#define ARCH_GET_GS 0x1004
-#ifdef CONFIG_CHECKPOINT_RESTORE
-# define ARCH_MAP_VDSO_X32 0x2001
-# define ARCH_MAP_VDSO_32 0x2002
-# define ARCH_MAP_VDSO_64 0x2003
-#endif
+#define ARCH_MAP_VDSO_X32 0x2001
+#define ARCH_MAP_VDSO_32 0x2002
+#define ARCH_MAP_VDSO_64 0x2003
#endif /* _ASM_X86_PRCTL_H */
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-13 11:28:01 +0300