diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-10-15 04:16:31 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-10-20 16:27:28 +0300 |
| commit | d9d005f32aac7362a1998f4b7fdf8874e91546bd (patch) | |
| tree | 64ac045329df4c2d6d3f7430c1e266a9d0ae42ba /arch | |
| parent | 9848fb96839bfd6ad4c00748842ccfd5bd3b0346 (diff) | |
| download | linux-d9d005f32aac7362a1998f4b7fdf8874e91546bd.tar.xz | |
x86/fpu: Move mxcsr related code to core
No need to expose that to code which only needs the XCR0 accessors.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.740012411@linutronix.de
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/fpu/xcr.h | 11 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/init.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/legacy.h | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/regset.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 3 | ||||
| -rw-r--r-- | arch/x86/kvm/svm/sev.c | 2 |
6 files changed, 12 insertions, 13 deletions
diff --git a/arch/x86/include/asm/fpu/xcr.h b/arch/x86/include/asm/fpu/xcr.h index 1c7ab8d95da5..79f95d3787e2 100644 --- a/arch/x86/include/asm/fpu/xcr.h +++ b/arch/x86/include/asm/fpu/xcr.h @@ -2,17 +2,6 @@ #ifndef _ASM_X86_FPU_XCR_H #define _ASM_X86_FPU_XCR_H -/* - * MXCSR and XCR definitions: - */ - -static inline void ldmxcsr(u32 mxcsr) -{ - asm volatile("ldmxcsr %0" :: "m" (mxcsr)); -} - -extern unsigned int mxcsr_feature_mask; - #define XCR_XFEATURE_ENABLED_MASK 0x00000000 static inline u64 xgetbv(u32 index) diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c index 24873dfe2dba..e77084a6ae7c 100644 --- a/arch/x86/kernel/fpu/init.c +++ b/arch/x86/kernel/fpu/init.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include "internal.h" +#include "legacy.h" /* * Initialize the registers found in all CPUs, CR0 and CR4: diff --git a/arch/x86/kernel/fpu/legacy.h b/arch/x86/kernel/fpu/legacy.h index 2ff36b0f79e9..17c26b164c63 100644 --- a/arch/x86/kernel/fpu/legacy.h +++ b/arch/x86/kernel/fpu/legacy.h @@ -4,6 +4,13 @@ #include <asm/fpu/types.h> +extern unsigned int mxcsr_feature_mask; + +static inline void ldmxcsr(u32 mxcsr) +{ + asm volatile("ldmxcsr %0" :: "m" (mxcsr)); +} + /* * Returns 0 on success or the trap number when the operation raises an * exception. diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c index a40150e350b6..3d8ed45da166 100644 --- a/arch/x86/kernel/fpu/regset.c +++ b/arch/x86/kernel/fpu/regset.c @@ -12,6 +12,7 @@ #include "context.h" #include "internal.h" +#include "legacy.h" /* * The xstateregs_active() routine is the same as the regset_fpregs_active() routine, diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 246a7fea06b1..f0305b2b227f 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -14,8 +14,9 @@ #include <asm/fpu/api.h> #include <asm/fpu/internal.h> -#include <asm/fpu/signal.h> #include <asm/fpu/regset.h> +#include <asm/fpu/signal.h> +#include <asm/fpu/xcr.h> #include <asm/tlbflush.h> diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index c36b5fe4c27c..3c57bd091120 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -17,10 +17,10 @@ #include <linux/misc_cgroup.h> #include <linux/processor.h> #include <linux/trace_events.h> -#include <asm/fpu/internal.h> #include <asm/pkru.h> #include <asm/trapnr.h> +#include <asm/fpu/xcr.h> #include "x86.h" #include "svm.h" |