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[ICEs.git] / 388835 / aesni-intel_glue.i.8

struct list_head {
};
int __static_cpu_has(unsigned short bit)
{
	asm goto ("1: jmp %l[t_no]\n" "2:\n" ".section .altinstructions,\"a\"\n"
		  " " ".balign 4" " " "\n" " " ".long" " " "1b\n" " " ".long"
		  " " "0\n" " .word %P0\n" " .byte 2b - 1b\n" " .byte 0\n"
		  ".previous\n"::"i" (bit)::t_no);
	return 1;
      t_no:return 0;
}

struct cpuinfo_x86 {
	unsigned int x86_capability[10];
} __attribute__ ((__aligned__((1 << (6)))));
extern struct cpuinfo_x86 boot_cpu_data;
struct i387_fxsave_struct {
	unsigned short swd;
} __attribute__ ((aligned(16)));
struct xsave_hdr_struct {
	unsigned long long xstate_bv;
} __attribute__ ((packed));
struct xsave_struct {
	struct xsave_hdr_struct xsave_hdr;
} __attribute__ ((packed, aligned(64)));
union thread_xstate {
	struct i387_fxsave_struct fxsave;
	struct xsave_struct xsave;
};
struct fpu {
	union thread_xstate *state;
};
struct cipher_alg {
	void (*cia_decrypt) (struct crypto_tfm * tfm, unsigned char *dst,
			     const unsigned char *src);
};
struct crypto_alg {
	struct list_head cra_list;
	union {
		struct cipher_alg cipher;
	} cra_u;
};
static __attribute__ ((always_inline)) __attribute__ ((pure))
int use_xsave(void)
{
	return __builtin_constant_p(constant_test_bit(154, (unsigned long *)((&boot_cpu_data)->x86_capability)))
?
	constant_test_bit(154, (unsigned long *)((&boot_cpu_data)->x86_capability)) :
	__static_cpu_has(154)

;
}

static inline __attribute__ ((always_inline)) __attribute__ ((always_inline))
    __attribute__ ((pure))
int use_fxsr(void)
{
	return __builtin_constant_p
		(variable_test_bit(24, (unsigned long *)((&boot_cpu_data)->x86_capability)))
		? 
variable_test_bit(24, (unsigned long *)((&boot_cpu_data)->x86_capability)) :
	__static_cpu_has(24)
;
}

static inline __attribute__ ((always_inline))
void fpu_save_init(struct fpu *fpu)
{
	if (
__builtin_constant_p(use_xsave())? use_xsave() : 
use_xsave()
) {
		if (__builtin_constant_p
		    (((!(fpu->state->xsave.xsave_hdr.
			 xstate_bv & 0x1)))) ? ! !((!(fpu->state->xsave.
						      xsave_hdr.
						      xstate_bv & 0x1))) : ( {
									    ! !((!(fpu->state->xsave.xsave_hdr.xstate_bv & 0x1)));}
		    ))
			return;
	} else if (use_fxsr()) {
	}
	if (__builtin_constant_p
	    ((((__builtin_constant_p(fpu->state->fxsave.swd & (1 << 7)) ?
		! !(fpu->state->fxsave.swd & (1 << 7)) : ( {
							  __builtin_expect(! !
									   (fpu->
									    state->
									    fxsave.
									    swd
									    & (1
									       <<
									       7)),
									   1);}
		)))))?
	    ! !(((__builtin_constant_p(fpu->state->fxsave.swd & (1 << 7)) ?
		  ! !(fpu->state->fxsave.swd & (1 << 7)) : ( {
							    __builtin_expect(! !
									     (fpu->
									      state->
									      fxsave.
									      swd
									      &
									      (1
									       <<
									       7)),
									     1);}
      )))):	  ( {
		   int ______r;
		   ______r =
		   ! !(((__builtin_constant_p(fpu->state->fxsave.swd & (1 << 7))
			 ? ! !(fpu->state->fxsave.swd & (1 << 7)) : ( {
								     ______r =
								     __builtin_expect
								     (! !
								      (fpu->
								       state->
								       fxsave.
								       swd & (1
									      <<
									      7)),
								      1);}
			 ))));}
	    ))
		asm volatile ("fnclex");
}

static __attribute__ ((always_inline))
void __save_init_fpu(void)
{
	fpu_save_init(0);
}

static __attribute__ ((always_inline))
void kernel_fpu_begin(void)
{
	__save_init_fpu();
}

static void aes_decrypt(void)
{
	if (!irq_fpu_usable())
		crypto_aes_decrypt_x86(0);
	else
		kernel_fpu_begin();
}

static struct crypto_alg aesni_alg = {
	.cra_list = {
		     &aesni_alg.cra_list, &aesni_alg.cra_list}
	,.cra_u = {
		   .cipher = {
			      .cia_decrypt = aes_decrypt}
		   }
};

static struct crypto_alg ablk_ecb_alg = {
};

int aesni_init(void)
{
	if (! !crypto_register_alg(&aesni_alg))
		crypto_unregister_alg(&ablk_ecb_alg);
}