arm/kernel/iwmmxt.S

72 	mrc	p15, 0, r2, c15, c1, 0
74 	tst	r2, #0x3
77 	orr	r2, r2, #0x3
78 	mcr	p15, 0, r2, c15, c1, 0
81 	ldr	r2, [r0, #S_PC]			@ current task pc value
83 	sub	r2, r2, #4			@ adjust pc back
84 	str	r2, [r0, #S_PC]
88 	mrc	p15, 0, r2, c2, c0, 0
89 	mov	r2, r2				@ cpwait
103 	tmrc	r2, wCon
106 	tst	r2, #0x1
119 	tst	r2, #0x2
172 	mov 	r2, #0
175 	tmcr	wCon, r2
192 	orr	r2, ip, #PSR_I_BIT		@ disable interrupts
193 	msr	cpsr_c, r2
196 	add	r2, r0, #TI_IWMMXT_STATE	@ get task Concan save area
201 	teqne	r1, r2				@ or specified one?
211 	mrc	p15, 0, r2, c2, c0, 0
212 	mov	r2, r2				@ cpwait
219 	mrc	p15, 0, r2, c2, c0, 0
220 	mov	r2, r2				@ cpwait
239 	orr	r2, ip, #PSR_I_BIT		@ disable interrupts
240 	msr	cpsr_c, r2
243 	add	r2, r0, #TI_IWMMXT_STATE	@ get task Concan save area
245 	teq	r2, r3				@ does this task own it...
251 	mov	r1, r2
252 	mov	r2, #MMX_SIZE
257 	mov	r2, #3				@ save all regs
277 	orr	r2, ip, #PSR_I_BIT		@ disable interrupts
278 	msr	cpsr_c, r2
281 	add	r2, r0, #TI_IWMMXT_STATE	@ get task Concan save area
283 	bic	r2, r2, #0x7			@ 64-bit alignment
284 	teq	r2, r3				@ does this task own it...
289 	mov	r0, r2
290 	mov	r2, #MMX_SIZE
317 	ldr	r2, =concan_owner
319 	ldr	r2, [r2]			@ get current Concan owner
320 	teq	r2, r3				@ next task owns it?
339 	mrs	r2, cpsr
340 	orr	ip, r2, #PSR_I_BIT		@ disable interrupts
347 	msr	cpsr_c, r2			@ restore interrupts