diff options
| author | Ravi Bangoria <ravi.bangoria@amd.com> | 2024-08-08 06:29:34 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-08-08 18:02:15 +0200 |
| commit | 350afa8a1101f62ce31bc4ed6f69cf4b90ec4fa2 (patch) | |
| tree | 04d3e85eeb7401adca663838d3c637b45443ad3b /arch/x86/include | |
| parent | de9c2c66ad8e787abec7c9d7eff4f8c3cdd28aed (diff) | |
x86/split_lock: Move Split and Bus lock code to a dedicated file
Bus Lock Detect functionality on AMD platforms works identical to Intel.
Move split_lock and bus_lock specific code from intel.c to a dedicated
file so that it can be compiled and supported on non-Intel platforms.
Also, introduce CONFIG_X86_BUS_LOCK_DETECT, make it dependent on
CONFIG_CPU_SUP_INTEL and add compilation dependency of the new bus_lock.c
file on CONFIG_X86_BUS_LOCK_DETECT.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/all/20240808062937.1149-2-ravi.bangoria@amd.com
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/cpu.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h index aa30fd8cad7f..86cf7952ee86 100644 --- a/arch/x86/include/asm/cpu.h +++ b/arch/x86/include/asm/cpu.h @@ -26,12 +26,13 @@ int mwait_usable(const struct cpuinfo_x86 *); unsigned int x86_family(unsigned int sig); unsigned int x86_model(unsigned int sig); unsigned int x86_stepping(unsigned int sig); -#ifdef CONFIG_CPU_SUP_INTEL +#ifdef CONFIG_X86_BUS_LOCK_DETECT extern void __init sld_setup(struct cpuinfo_x86 *c); extern bool handle_user_split_lock(struct pt_regs *regs, long error_code); extern bool handle_guest_split_lock(unsigned long ip); extern void handle_bus_lock(struct pt_regs *regs); -u8 get_this_hybrid_cpu_type(void); +void split_lock_init(void); +void bus_lock_init(void); #else static inline void __init sld_setup(struct cpuinfo_x86 *c) {} static inline bool handle_user_split_lock(struct pt_regs *regs, long error_code) @@ -45,7 +46,13 @@ static inline bool handle_guest_split_lock(unsigned long ip) } static inline void handle_bus_lock(struct pt_regs *regs) {} +static inline void split_lock_init(void) {} +static inline void bus_lock_init(void) {} +#endif +#ifdef CONFIG_CPU_SUP_INTEL +u8 get_this_hybrid_cpu_type(void); +#else static inline u8 get_this_hybrid_cpu_type(void) { return 0; |