diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/mm/hypersparc.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/sparc/mm/hypersparc.S | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/mm/hypersparc.S b/ANDROID_3.4.5/arch/sparc/mm/hypersparc.S deleted file mode 100644 index 44aad32e..00000000 --- a/ANDROID_3.4.5/arch/sparc/mm/hypersparc.S +++ /dev/null @@ -1,412 +0,0 @@ -/* - * hypersparc.S: High speed Hypersparc mmu/cache operations. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <asm/ptrace.h> -#include <asm/psr.h> -#include <asm/asm-offsets.h> -#include <asm/asi.h> -#include <asm/page.h> -#include <asm/pgtsrmmu.h> -#include <linux/init.h> - - .text - .align 4 - - .globl hypersparc_flush_cache_all, hypersparc_flush_cache_mm - .globl hypersparc_flush_cache_range, hypersparc_flush_cache_page - .globl hypersparc_flush_page_to_ram - .globl hypersparc_flush_page_for_dma, hypersparc_flush_sig_insns - .globl hypersparc_flush_tlb_all, hypersparc_flush_tlb_mm - .globl hypersparc_flush_tlb_range, hypersparc_flush_tlb_page - -hypersparc_flush_cache_all: - WINDOW_FLUSH(%g4, %g5) - sethi %hi(vac_cache_size), %g4 - ld [%g4 + %lo(vac_cache_size)], %g5 - sethi %hi(vac_line_size), %g1 - ld [%g1 + %lo(vac_line_size)], %g2 -1: - subcc %g5, %g2, %g5 ! hyper_flush_unconditional_combined - bne 1b - sta %g0, [%g5] ASI_M_FLUSH_CTX - retl - sta %g0, [%g0] ASI_M_FLUSH_IWHOLE ! hyper_flush_whole_icache - - /* We expand the window flush to get maximum performance. */ -hypersparc_flush_cache_mm: -#ifndef CONFIG_SMP - ld [%o0 + AOFF_mm_context], %g1 - cmp %g1, -1 - be hypersparc_flush_cache_mm_out -#endif - WINDOW_FLUSH(%g4, %g5) - - sethi %hi(vac_line_size), %g1 - ld [%g1 + %lo(vac_line_size)], %o1 - sethi %hi(vac_cache_size), %g2 - ld [%g2 + %lo(vac_cache_size)], %o0 - add %o1, %o1, %g1 - add %o1, %g1, %g2 - add %o1, %g2, %g3 - add %o1, %g3, %g4 - add %o1, %g4, %g5 - add %o1, %g5, %o4 - add %o1, %o4, %o5 - - /* BLAMMO! */ -1: - subcc %o0, %o5, %o0 ! hyper_flush_cache_user - sta %g0, [%o0 + %g0] ASI_M_FLUSH_USER - sta %g0, [%o0 + %o1] ASI_M_FLUSH_USER - sta %g0, [%o0 + %g1] ASI_M_FLUSH_USER - sta %g0, [%o0 + %g2] ASI_M_FLUSH_USER - sta %g0, [%o0 + %g3] ASI_M_FLUSH_USER - sta %g0, [%o0 + %g4] ASI_M_FLUSH_USER - sta %g0, [%o0 + %g5] ASI_M_FLUSH_USER - bne 1b - sta %g0, [%o0 + %o4] ASI_M_FLUSH_USER -hypersparc_flush_cache_mm_out: - retl - nop - - /* The things we do for performance... */ -hypersparc_flush_cache_range: - ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */ -#ifndef CONFIG_SMP - ld [%o0 + AOFF_mm_context], %g1 - cmp %g1, -1 - be hypersparc_flush_cache_range_out -#endif - WINDOW_FLUSH(%g4, %g5) - - sethi %hi(vac_line_size), %g1 - ld [%g1 + %lo(vac_line_size)], %o4 - sethi %hi(vac_cache_size), %g2 - ld [%g2 + %lo(vac_cache_size)], %o3 - - /* Here comes the fun part... */ - add %o2, (PAGE_SIZE - 1), %o2 - andn %o1, (PAGE_SIZE - 1), %o1 - add %o4, %o4, %o5 - andn %o2, (PAGE_SIZE - 1), %o2 - add %o4, %o5, %g1 - sub %o2, %o1, %g4 - add %o4, %g1, %g2 - sll %o3, 2, %g5 - add %o4, %g2, %g3 - cmp %g4, %g5 - add %o4, %g3, %g4 - blu 0f - add %o4, %g4, %g5 - add %o4, %g5, %g7 - - /* Flush entire user space, believe it or not this is quicker - * than page at a time flushings for range > (cache_size<<2). - */ -1: - subcc %o3, %g7, %o3 - sta %g0, [%o3 + %g0] ASI_M_FLUSH_USER - sta %g0, [%o3 + %o4] ASI_M_FLUSH_USER - sta %g0, [%o3 + %o5] ASI_M_FLUSH_USER - sta %g0, [%o3 + %g1] ASI_M_FLUSH_USER - sta %g0, [%o3 + %g2] ASI_M_FLUSH_USER - sta %g0, [%o3 + %g3] ASI_M_FLUSH_USER - sta %g0, [%o3 + %g4] ASI_M_FLUSH_USER - bne 1b - sta %g0, [%o3 + %g5] ASI_M_FLUSH_USER - retl - nop - - /* Below our threshold, flush one page at a time. */ -0: - ld [%o0 + AOFF_mm_context], %o0 - mov SRMMU_CTX_REG, %g7 - lda [%g7] ASI_M_MMUREGS, %o3 - sta %o0, [%g7] ASI_M_MMUREGS - add %o2, -PAGE_SIZE, %o0 -1: - or %o0, 0x400, %g7 - lda [%g7] ASI_M_FLUSH_PROBE, %g7 - orcc %g7, 0, %g0 - be,a 3f - mov %o0, %o2 - add %o4, %g5, %g7 -2: - sub %o2, %g7, %o2 - sta %g0, [%o2 + %g0] ASI_M_FLUSH_PAGE - sta %g0, [%o2 + %o4] ASI_M_FLUSH_PAGE - sta %g0, [%o2 + %o5] ASI_M_FLUSH_PAGE - sta %g0, [%o2 + %g1] ASI_M_FLUSH_PAGE - sta %g0, [%o2 + %g2] ASI_M_FLUSH_PAGE - sta %g0, [%o2 + %g3] ASI_M_FLUSH_PAGE - andcc %o2, 0xffc, %g0 - sta %g0, [%o2 + %g4] ASI_M_FLUSH_PAGE - bne 2b - sta %g0, [%o2 + %g5] ASI_M_FLUSH_PAGE -3: - cmp %o2, %o1 - bne 1b - add %o2, -PAGE_SIZE, %o0 - mov SRMMU_FAULT_STATUS, %g5 - lda [%g5] ASI_M_MMUREGS, %g0 - mov SRMMU_CTX_REG, %g7 - sta %o3, [%g7] ASI_M_MMUREGS -hypersparc_flush_cache_range_out: - retl - nop - - /* HyperSparc requires a valid mapping where we are about to flush - * in order to check for a physical tag match during the flush. - */ - /* Verified, my ass... */ -hypersparc_flush_cache_page: - ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */ - ld [%o0 + AOFF_mm_context], %g2 -#ifndef CONFIG_SMP - cmp %g2, -1 - be hypersparc_flush_cache_page_out -#endif - WINDOW_FLUSH(%g4, %g5) - - sethi %hi(vac_line_size), %g1 - ld [%g1 + %lo(vac_line_size)], %o4 - mov SRMMU_CTX_REG, %o3 - andn %o1, (PAGE_SIZE - 1), %o1 - lda [%o3] ASI_M_MMUREGS, %o2 - sta %g2, [%o3] ASI_M_MMUREGS - or %o1, 0x400, %o5 - lda [%o5] ASI_M_FLUSH_PROBE, %g1 - orcc %g0, %g1, %g0 - be 2f - add %o4, %o4, %o5 - sub %o1, -PAGE_SIZE, %o1 - add %o4, %o5, %g1 - add %o4, %g1, %g2 - add %o4, %g2, %g3 - add %o4, %g3, %g4 - add %o4, %g4, %g5 - add %o4, %g5, %g7 - - /* BLAMMO! */ -1: - sub %o1, %g7, %o1 - sta %g0, [%o1 + %g0] ASI_M_FLUSH_PAGE - sta %g0, [%o1 + %o4] ASI_M_FLUSH_PAGE - sta %g0, [%o1 + %o5] ASI_M_FLUSH_PAGE - sta %g0, [%o1 + %g1] ASI_M_FLUSH_PAGE - sta %g0, [%o1 + %g2] ASI_M_FLUSH_PAGE - sta %g0, [%o1 + %g3] ASI_M_FLUSH_PAGE - andcc %o1, 0xffc, %g0 - sta %g0, [%o1 + %g4] ASI_M_FLUSH_PAGE - bne 1b - sta %g0, [%o1 + %g5] ASI_M_FLUSH_PAGE -2: - mov SRMMU_FAULT_STATUS, %g7 - mov SRMMU_CTX_REG, %g4 - lda [%g7] ASI_M_MMUREGS, %g0 - sta %o2, [%g4] ASI_M_MMUREGS -hypersparc_flush_cache_page_out: - retl - nop - -hypersparc_flush_sig_insns: - flush %o1 - retl - flush %o1 + 4 - - /* HyperSparc is copy-back. */ -hypersparc_flush_page_to_ram: - sethi %hi(vac_line_size), %g1 - ld [%g1 + %lo(vac_line_size)], %o4 - andn %o0, (PAGE_SIZE - 1), %o0 - add %o4, %o4, %o5 - or %o0, 0x400, %g7 - lda [%g7] ASI_M_FLUSH_PROBE, %g5 - add %o4, %o5, %g1 - orcc %g5, 0, %g0 - be 2f - add %o4, %g1, %g2 - add %o4, %g2, %g3 - sub %o0, -PAGE_SIZE, %o0 - add %o4, %g3, %g4 - add %o4, %g4, %g5 - add %o4, %g5, %g7 - - /* BLAMMO! */ -1: - sub %o0, %g7, %o0 - sta %g0, [%o0 + %g0] ASI_M_FLUSH_PAGE - sta %g0, [%o0 + %o4] ASI_M_FLUSH_PAGE - sta %g0, [%o0 + %o5] ASI_M_FLUSH_PAGE - sta %g0, [%o0 + %g1] ASI_M_FLUSH_PAGE - sta %g0, [%o0 + %g2] ASI_M_FLUSH_PAGE - sta %g0, [%o0 + %g3] ASI_M_FLUSH_PAGE - andcc %o0, 0xffc, %g0 - sta %g0, [%o0 + %g4] ASI_M_FLUSH_PAGE - bne 1b - sta %g0, [%o0 + %g5] ASI_M_FLUSH_PAGE -2: - mov SRMMU_FAULT_STATUS, %g1 - retl - lda [%g1] ASI_M_MMUREGS, %g0 - - /* HyperSparc is IO cache coherent. */ -hypersparc_flush_page_for_dma: - retl - nop - - /* It was noted that at boot time a TLB flush all in a delay slot - * can deliver an illegal instruction to the processor if the timing - * is just right... - */ -hypersparc_flush_tlb_all: - mov 0x400, %g1 - sta %g0, [%g1] ASI_M_FLUSH_PROBE - retl - nop - -hypersparc_flush_tlb_mm: - mov SRMMU_CTX_REG, %g1 - ld [%o0 + AOFF_mm_context], %o1 - lda [%g1] ASI_M_MMUREGS, %g5 -#ifndef CONFIG_SMP - cmp %o1, -1 - be hypersparc_flush_tlb_mm_out -#endif - mov 0x300, %g2 - sta %o1, [%g1] ASI_M_MMUREGS - sta %g0, [%g2] ASI_M_FLUSH_PROBE -hypersparc_flush_tlb_mm_out: - retl - sta %g5, [%g1] ASI_M_MMUREGS - -hypersparc_flush_tlb_range: - ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */ - mov SRMMU_CTX_REG, %g1 - ld [%o0 + AOFF_mm_context], %o3 - lda [%g1] ASI_M_MMUREGS, %g5 -#ifndef CONFIG_SMP - cmp %o3, -1 - be hypersparc_flush_tlb_range_out -#endif - sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4 - sta %o3, [%g1] ASI_M_MMUREGS - and %o1, %o4, %o1 - add %o1, 0x200, %o1 - sta %g0, [%o1] ASI_M_FLUSH_PROBE -1: - sub %o1, %o4, %o1 - cmp %o1, %o2 - blu,a 1b - sta %g0, [%o1] ASI_M_FLUSH_PROBE -hypersparc_flush_tlb_range_out: - retl - sta %g5, [%g1] ASI_M_MMUREGS - -hypersparc_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 hypersparc_flush_tlb_page_out -#endif - lda [%g1] ASI_M_MMUREGS, %g5 - sta %o3, [%g1] ASI_M_MMUREGS - sta %g0, [%o1] ASI_M_FLUSH_PROBE -hypersparc_flush_tlb_page_out: - retl - sta %g5, [%g1] ASI_M_MMUREGS - - __INIT - - /* High speed page clear/copy. */ -hypersparc_bzero_1page: -/* NOTE: This routine has to be shorter than 40insns --jj */ - clr %g1 - mov 32, %g2 - mov 64, %g3 - mov 96, %g4 - mov 128, %g5 - mov 160, %g7 - mov 192, %o2 - mov 224, %o3 - mov 16, %o1 -1: - stda %g0, [%o0 + %g0] ASI_M_BFILL - stda %g0, [%o0 + %g2] ASI_M_BFILL - stda %g0, [%o0 + %g3] ASI_M_BFILL - stda %g0, [%o0 + %g4] ASI_M_BFILL - stda %g0, [%o0 + %g5] ASI_M_BFILL - stda %g0, [%o0 + %g7] ASI_M_BFILL - stda %g0, [%o0 + %o2] ASI_M_BFILL - stda %g0, [%o0 + %o3] ASI_M_BFILL - subcc %o1, 1, %o1 - bne 1b - add %o0, 256, %o0 - - retl - nop - -hypersparc_copy_1page: -/* NOTE: This routine has to be shorter than 70insns --jj */ - sub %o1, %o0, %o2 ! difference - mov 16, %g1 -1: - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - add %o0, 32, %o0 - sta %o0, [%o0 + %o2] ASI_M_BCOPY - subcc %g1, 1, %g1 - bne 1b - add %o0, 32, %o0 - - retl - nop - - .globl hypersparc_setup_blockops -hypersparc_setup_blockops: - sethi %hi(bzero_1page), %o0 - or %o0, %lo(bzero_1page), %o0 - sethi %hi(hypersparc_bzero_1page), %o1 - or %o1, %lo(hypersparc_bzero_1page), %o1 - sethi %hi(hypersparc_copy_1page), %o2 - or %o2, %lo(hypersparc_copy_1page), %o2 - ld [%o1], %o4 -1: - add %o1, 4, %o1 - st %o4, [%o0] - add %o0, 4, %o0 - cmp %o1, %o2 - bne 1b - ld [%o1], %o4 - sethi %hi(__copy_1page), %o0 - or %o0, %lo(__copy_1page), %o0 - sethi %hi(hypersparc_setup_blockops), %o2 - or %o2, %lo(hypersparc_setup_blockops), %o2 - ld [%o1], %o4 -1: - add %o1, 4, %o1 - st %o4, [%o0] - add %o0, 4, %o0 - cmp %o1, %o2 - bne 1b - ld [%o1], %o4 - sta %g0, [%g0] ASI_M_FLUSH_IWHOLE - retl - nop |