/* $Id: tsunami.S,v 1.6 2000/07/16 21:48:52 anton Exp $ * tsunami.S: High speed MicroSparc-I mmu/cache operations. * * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) */#include <linux/config.h>#include <asm/ptrace.h>#include <asm/psr.h>#include <asm/asi.h>#include <asm/page.h>#include <asm/pgtsrmmu.h>	.text	.align	4	.globl	tsunami_flush_cache_all, tsunami_flush_cache_mm	.globl	tsunami_flush_cache_range, tsunami_flush_cache_page	.globl	tsunami_flush_page_to_ram, tsunami_flush_page_for_dma	.globl	tsunami_flush_sig_insns	.globl	tsunami_flush_tlb_all, tsunami_flush_tlb_mm	.globl	tsunami_flush_tlb_range, tsunami_flush_tlb_page	/* Sliiick... */tsunami_flush_cache_page:	ld	[%o0 + 0x0], %o0	/* XXX vma->vm_mm, GROSS XXX */tsunami_flush_cache_mm:tsunami_flush_cache_range:	ld	[%o0 + AOFF_mm_context], %g2#ifndef CONFIG_SMP	cmp	%g2, -1	be	tsunami_flush_cache_out#endiftsunami_flush_cache_all:	WINDOW_FLUSH(%g4, %g5)tsunami_flush_page_for_dma:	sta	%g0, [%g0] ASI_M_IC_FLCLEAR	sta	%g0, [%g0] ASI_M_DC_FLCLEARtsunami_flush_cache_out:tsunami_flush_page_to_ram:	retl	 noptsunami_flush_sig_insns:	flush	%o1	retl	 flush	%o1 + 4	/* More slick stuff... */tsunami_flush_tlb_mm:tsunami_flush_tlb_range:#ifndef CONFIG_SMP	ld	[%o0 + AOFF_mm_context], %g2	cmp	%g2, -1	be	tsunami_flush_tlb_out#endiftsunami_flush_tlb_all:	 mov	0x400, %o1	sta	%g0, [%o1] ASI_M_FLUSH_PROBE	nop	nop	nop	nop	noptsunami_flush_tlb_out:	retl	 nop	/* This one can be done in a fine grained manner... */tsunami_flush_tlb_page:	ld	[%o0 + 0x00], %o0	/* XXX vma->vm_mm GROSS XXX */	mov	SRMMU_CTX_REG, %g1	ld	[%o0 + AOFF_mm_context], %o3	andn	%o1, (PAGE_SIZE - 1), %o1#ifndef CONFIG_SMP	cmp	%o3, -1	be	tsunami_flush_tlb_page_out#endif	 lda	[%g1] ASI_M_MMUREGS, %g5	sta	%o3, [%g1] ASI_M_MMUREGS	sta	%g0, [%o1] ASI_M_FLUSH_PROBE	nop	nop	nop	nop	noptsunami_flush_tlb_page_out:	retl	 sta	%g5, [%g1] ASI_M_MMUREGS#define MIRROR_BLOCK(dst, src, offset, t0, t1, t2, t3) \	ldd	[src + offset + 0x18], t0; \	std	t0, [dst + offset + 0x18]; \	ldd	[src + offset + 0x10], t2; \	std	t2, [dst + offset + 0x10]; \	ldd	[src + offset + 0x08], t0; \	std	t0, [dst + offset + 0x08]; \	ldd	[src + offset + 0x00], t2; \	std	t2, [dst + offset + 0x00];	.globl	tsunami_copy_1pagetsunami_copy_1page:/* NOTE: This routine has to be shorter than 70insns --jj */	or	%g0, (PAGE_SIZE >> 8), %g11:	MIRROR_BLOCK(%o0, %o1, 0x00, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0x20, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0x40, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0x60, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0x80, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0xa0, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0xc0, %o2, %o3, %o4, %o5)	MIRROR_BLOCK(%o0, %o1, 0xe0, %o2, %o3, %o4, %o5)	subcc	%g1, 1, %g1	add	%o0, 0x100, %o0	bne	1b	 add	%o1, 0x100, %o1	.globl	tsunami_setup_blockopstsunami_setup_blockops:	sethi	%hi(__copy_1page), %o0	or	%o0, %lo(__copy_1page), %o0	sethi	%hi(tsunami_copy_1page), %o1	or	%o1, %lo(tsunami_copy_1page), %o1	sethi	%hi(tsunami_setup_blockops), %o2	or	%o2, %lo(tsunami_setup_blockops), %o2	ld	[%o1], %o41:	add	%o1, 4, %o1	st	%o4, [%o0]	add	%o0, 4, %o0	cmp	%o1, %o2	bne	1b	ld	[%o1], %o4	sta	%g0, [%g0] ASI_M_IC_FLCLEAR	sta	%g0, [%g0] ASI_M_DC_FLCLEAR	retl	 nop