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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-11 18:23:53 +1100 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-11 18:23:53 +1100 |
commit | 3ad26e5c4459d3793ad65bc8929037c70515df83 (patch) | |
tree | 434327df7942878383e372988eb5f3bccb25de12 /arch/powerpc/include/asm/processor.h | |
parent | 5293bf97a27e1be8ac6096aa198ff6a9e3e6837c (diff) | |
parent | 18461960cbf50bf345ef0667d45d5f64de8fb893 (diff) | |
download | linux-stable-3ad26e5c4459d3793ad65bc8929037c70515df83.tar.gz linux-stable-3ad26e5c4459d3793ad65bc8929037c70515df83.tar.bz2 linux-stable-3ad26e5c4459d3793ad65bc8929037c70515df83.zip |
Merge branch 'for-kvm' into next
Topic branch for commits that the KVM tree might want to pull
in separately.
Hand merged a few files due to conflicts with the LE stuff
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
-rw-r--r-- | arch/powerpc/include/asm/processor.h | 47 |
1 files changed, 25 insertions, 22 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 82c6ee9df9a1..c1583070937d 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -152,8 +152,20 @@ typedef struct { unsigned long seg; } mm_segment_t; -#define TS_FPR(i) fpr[i][TS_FPROFFSET] -#define TS_TRANS_FPR(i) transact_fpr[i][TS_FPROFFSET] +#define TS_FPR(i) fp_state.fpr[i][TS_FPROFFSET] +#define TS_TRANS_FPR(i) transact_fp.fpr[i][TS_FPROFFSET] + +/* FP and VSX 0-31 register set */ +struct thread_fp_state { + u64 fpr[32][TS_FPRWIDTH] __attribute__((aligned(16))); + u64 fpscr; /* Floating point status */ +}; + +/* Complete AltiVec register set including VSCR */ +struct thread_vr_state { + vector128 vr[32] __attribute__((aligned(16))); + vector128 vscr __attribute__((aligned(16))); +}; struct thread_struct { unsigned long ksp; /* Kernel stack pointer */ @@ -206,13 +218,8 @@ struct thread_struct { unsigned long dvc2; #endif #endif - /* FP and VSX 0-31 register set */ - double fpr[32][TS_FPRWIDTH] __attribute__((aligned(16))); - struct { - - unsigned int pad; - unsigned int val; /* Floating point status */ - } fpscr; + struct thread_fp_state fp_state; + struct thread_fp_state *fp_save_area; int fpexc_mode; /* floating-point exception mode */ unsigned int align_ctl; /* alignment handling control */ #ifdef CONFIG_PPC64 @@ -230,10 +237,8 @@ struct thread_struct { struct arch_hw_breakpoint hw_brk; /* info on the hardware breakpoint */ unsigned long trap_nr; /* last trap # on this thread */ #ifdef CONFIG_ALTIVEC - /* Complete AltiVec register set */ - vector128 vr[32] __attribute__((aligned(16))); - /* AltiVec status */ - vector128 vscr __attribute__((aligned(16))); + struct thread_vr_state vr_state; + struct thread_vr_state *vr_save_area; unsigned long vrsave; int used_vr; /* set if process has used altivec */ #endif /* CONFIG_ALTIVEC */ @@ -270,13 +275,8 @@ struct thread_struct { * transact_fpr[] is the new set of transactional values. * VRs work the same way. */ - double transact_fpr[32][TS_FPRWIDTH]; - struct { - unsigned int pad; - unsigned int val; /* Floating point status */ - } transact_fpscr; - vector128 transact_vr[32] __attribute__((aligned(16))); - vector128 transact_vscr __attribute__((aligned(16))); + struct thread_fp_state transact_fp; + struct thread_vr_state transact_vr; unsigned long transact_vrsave; #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ #ifdef CONFIG_KVM_BOOK3S_32_HANDLER @@ -330,8 +330,6 @@ struct thread_struct { .ksp = INIT_SP, \ .regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \ .fs = KERNEL_DS, \ - .fpr = {{0}}, \ - .fpscr = { .val = 0, }, \ .fpexc_mode = 0, \ .ppr = INIT_PPR, \ } @@ -369,6 +367,11 @@ extern int set_endian(struct task_struct *tsk, unsigned int val); extern int get_unalign_ctl(struct task_struct *tsk, unsigned long adr); extern int set_unalign_ctl(struct task_struct *tsk, unsigned int val); +extern void load_fp_state(struct thread_fp_state *fp); +extern void store_fp_state(struct thread_fp_state *fp); +extern void load_vr_state(struct thread_vr_state *vr); +extern void store_vr_state(struct thread_vr_state *vr); + static inline unsigned int __unpack_fe01(unsigned long msr_bits) { return ((msr_bits & MSR_FE0) >> 10) | ((msr_bits & MSR_FE1) >> 8); |