Merge tag 'x86-cleanups-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel...

[platform/kernel/linux-starfive.git] / arch / x86 / include / asm / processor.h

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 36d5207..861e53e 100644 (file)
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -586,7 +586,6 @@ extern char                 ignore_fpu_irq;
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT 1
 #define ARCH_HAS_PREFETCHW
-#define ARCH_HAS_SPINLOCK_PREFETCH
 
 #ifdef CONFIG_X86_32
 # define BASE_PREFETCH         ""
@@ -620,11 +619,6 @@ static __always_inline void prefetchw(const void *x)
                          "m" (*(const char *)x));
 }
 
-static inline void spin_lock_prefetch(const void *x)
-{
-       prefetchw(x);
-}
-
 #define TOP_OF_INIT_STACK ((unsigned long)&init_stack + sizeof(init_stack) - \
                           TOP_OF_KERNEL_STACK_PADDING)
 
@@ -682,10 +676,14 @@ extern u16 get_llc_id(unsigned int cpu);
 #ifdef CONFIG_CPU_SUP_AMD
 extern u32 amd_get_nodes_per_socket(void);
 extern u32 amd_get_highest_perf(void);
+extern bool cpu_has_ibpb_brtype_microcode(void);
+extern void amd_clear_divider(void);
 extern void amd_check_microcode(void);
 #else
 static inline u32 amd_get_nodes_per_socket(void)       { return 0; }
 static inline u32 amd_get_highest_perf(void)           { return 0; }
+static inline bool cpu_has_ibpb_brtype_microcode(void) { return false; }
+static inline void amd_clear_divider(void)             { }
 static inline void amd_check_microcode(void)           { }
 #endif
 
@@ -729,4 +727,6 @@ bool arch_is_platform_page(u64 paddr);
 #define arch_is_platform_page arch_is_platform_page
 #endif
 
+extern bool gds_ucode_mitigated(void);
+
 #endif /* _ASM_X86_PROCESSOR_H */