diff options
Diffstat (limited to 'arch/x86/entry/calling.h')
| -rw-r--r-- | arch/x86/entry/calling.h | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h index d3fbe2dc03ea..efb0d1b1f15f 100644 --- a/arch/x86/entry/calling.h +++ b/arch/x86/entry/calling.h @@ -6,7 +6,6 @@ #include <asm/percpu.h> #include <asm/asm-offsets.h> #include <asm/processor-flags.h> -#include <asm/inst.h> /* @@ -338,12 +337,6 @@ For 32-bit we have the following conventions - kernel is built with #endif .endm -.macro SAVE_AND_SET_GSBASE scratch_reg:req save_reg:req - rdgsbase \save_reg - GET_PERCPU_BASE \scratch_reg - wrgsbase \scratch_reg -.endm - #endif /* CONFIG_X86_64 */ .macro STACKLEAK_ERASE @@ -352,39 +345,6 @@ For 32-bit we have the following conventions - kernel is built with #endif .endm -#ifdef CONFIG_SMP - -/* - * CPU/node NR is loaded from the limit (size) field of a special segment - * descriptor entry in GDT. - */ -.macro LOAD_CPU_AND_NODE_SEG_LIMIT reg:req - movq $__CPUNODE_SEG, \reg - lsl \reg, \reg -.endm - -/* - * Fetch the per-CPU GSBASE value for this processor and put it in @reg. - * We normally use %gs for accessing per-CPU data, but we are setting up - * %gs here and obviously can not use %gs itself to access per-CPU data. - */ -.macro GET_PERCPU_BASE reg:req - ALTERNATIVE \ - "LOAD_CPU_AND_NODE_SEG_LIMIT \reg", \ - "RDPID \reg", \ - X86_FEATURE_RDPID - andq $VDSO_CPUNODE_MASK, \reg - movq __per_cpu_offset(, \reg, 8), \reg -.endm - -#else - -.macro GET_PERCPU_BASE reg:req - movq pcpu_unit_offsets(%rip), \reg -.endm - -#endif /* CONFIG_SMP */ - /* * This does 'call enter_from_user_mode' unless we can avoid it based on * kernel config or using the static jump infrastructure. |