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rmixl_subr.S revision 1.1.2.4 
      1 /*	$NetBSD: rmixl_subr.S,v 1.1.2.4 2010/02/10 19:45:48 cliff Exp $	*/
      2 
      3 #include "opt_cputype.h"
      4 
      5 #include <sys/cdefs.h>
      6 
      7 #include <mips/cpuregs.h>
      8 #include <mips/asm.h>
      9 
     10 #include "assym.h"
     11 
     12 	.set	push
     13         .set    noreorder
     14         .set    mips64
     15         .text
     16 
     17 /*
     18  * read XLS Processor Control register
     19  *
     20  * uint64_t rmixl_mfcr(u_int cr);
     21  */
     22 LEAF(rmixl_mfcr)
     23 #if defined(__mips_o32)
     24 #error O32 not supported
     25 #endif
     26 	j	ra
     27 	mfcr	v0, a0
     28 END(rmixl_mfcr)
     29 
     30 /*
     31  * write XLS Processor Control register
     32  *
     33  * void rmixl_mtcr(u_int cr, uint64_t val);
     34  */
     35 LEAF(rmixl_mtcr)
     36 #if defined(__mips_o32)
     37 #error O32 not supported
     38 #endif
     39 	j	ra
     40 	mtcr	a1, a0
     41 END(rmixl_mtcr)
     42 
     43 /*
     44  * rmixlfw_wakeup_cpu(func, args, mask, callback)
     45  */
     46 NESTED(rmixlfw_wakeup_cpu, CALLFRAME_SIZ+2*SZREG, ra)
     47 	PTR_ADDU	sp, sp, -(CALLFRAME_SIZ+2*SZREG)
     48 	REG_S		ra, CALLFRAME_RA(sp)
     49 	REG_S		s0, CALLFRAME_S0(sp)
     50 	REG_S		gp, CALLFRAME_SIZ+0*SZREG(sp)
     51 	REG_S		t8, CALLFRAME_SIZ+1*SZREG(sp)
     52 
     53 	move		s0, sp			/* save sp */
     54 	srl		t0, sp, 0		/* nuke upper half */
     55 	li		t1, MIPS_KSEG0_START
     56 	jalr		a3			/* callback to firmware */
     57 	 or		sp, t0, t1		/* delay slot */
     58 	move		sp, s0			/* restore sp */
     59 
     60 	REG_L		t8, CALLFRAME_SIZ+1*SZREG(sp)
     61 	REG_L		gp, CALLFRAME_SIZ+0*SZREG(sp)
     62 	REG_L		s0, CALLFRAME_S0(sp)
     63 	REG_L		ra, CALLFRAME_RA(sp)
     64 	jr		ra
     65 	 PTR_ADDU	sp, sp, (CALLFRAME_SIZ+2*SZREG)	/* delay slot */
     66 END(rmixlfw_wakeup_cpu)
     67 
     68 /*
     69  * cpu_wakeup_trampoline
     70  */
     71 NESTED(cpu_wakeup_trampoline, CALLFRAME_SIZ, ra)
     72 	j	.
     73 	nop
     74 END(cpu_wakeup_trampoline)
     75 
     76 	.set	pop
     77