diff options
Diffstat (limited to 'arch/mips/lib-64')
| -rw-r--r-- | arch/mips/lib-64/Makefile | 25 | ||||
| -rw-r--r-- | arch/mips/lib-64/csum_partial.S | 242 | ||||
| -rw-r--r-- | arch/mips/lib-64/dump_tlb.c | 217 | ||||
| -rw-r--r-- | arch/mips/lib-64/memset.S | 142 | ||||
| -rw-r--r-- | arch/mips/lib-64/watch.S | 57 |
5 files changed, 0 insertions, 683 deletions
diff --git a/arch/mips/lib-64/Makefile b/arch/mips/lib-64/Makefile deleted file mode 100644 index ad285786e74..00000000000 --- a/arch/mips/lib-64/Makefile +++ /dev/null @@ -1,25 +0,0 @@ -# -# Makefile for MIPS-specific library files.. -# - -lib-y += csum_partial.o memset.o watch.o - -obj-$(CONFIG_CPU_MIPS32) += dump_tlb.o -obj-$(CONFIG_CPU_MIPS64) += dump_tlb.o -obj-$(CONFIG_CPU_NEVADA) += dump_tlb.o -obj-$(CONFIG_CPU_R10000) += dump_tlb.o -obj-$(CONFIG_CPU_R3000) += r3k_dump_tlb.o -obj-$(CONFIG_CPU_R4300) += dump_tlb.o -obj-$(CONFIG_CPU_R4X00) += dump_tlb.o -obj-$(CONFIG_CPU_R5000) += dump_tlb.o -obj-$(CONFIG_CPU_R5432) += dump_tlb.o -obj-$(CONFIG_CPU_R6000) += -obj-$(CONFIG_CPU_R8000) += -obj-$(CONFIG_CPU_RM7000) += dump_tlb.o -obj-$(CONFIG_CPU_RM9000) += dump_tlb.o -obj-$(CONFIG_CPU_SB1) += dump_tlb.o -obj-$(CONFIG_CPU_TX39XX) += r3k_dump_tlb.o -obj-$(CONFIG_CPU_TX49XX) += dump_tlb.o -obj-$(CONFIG_CPU_VR41XX) += dump_tlb.o - -EXTRA_AFLAGS := $(CFLAGS) diff --git a/arch/mips/lib-64/csum_partial.S b/arch/mips/lib-64/csum_partial.S deleted file mode 100644 index 25aba660cc9..00000000000 --- a/arch/mips/lib-64/csum_partial.S +++ /dev/null @@ -1,242 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Quick'n'dirty IP checksum ... - * - * Copyright (C) 1998, 1999 Ralf Baechle - * Copyright (C) 1999 Silicon Graphics, Inc. - */ -#include <asm/asm.h> -#include <asm/regdef.h> - -#define ADDC(sum,reg) \ - addu sum, reg; \ - sltu v1, sum, reg; \ - addu sum, v1 - -#define CSUM_BIGCHUNK(src, offset, sum, t0, t1, t2, t3) \ - lw t0, (offset + 0x00)(src); \ - lw t1, (offset + 0x04)(src); \ - lw t2, (offset + 0x08)(src); \ - lw t3, (offset + 0x0c)(src); \ - ADDC(sum, t0); \ - ADDC(sum, t1); \ - ADDC(sum, t2); \ - ADDC(sum, t3); \ - lw t0, (offset + 0x10)(src); \ - lw t1, (offset + 0x14)(src); \ - lw t2, (offset + 0x18)(src); \ - lw t3, (offset + 0x1c)(src); \ - ADDC(sum, t0); \ - ADDC(sum, t1); \ - ADDC(sum, t2); \ - ADDC(sum, t3); \ - -/* - * a0: source address - * a1: length of the area to checksum - * a2: partial checksum - */ - -#define src a0 -#define sum v0 - - .text - .set noreorder - -/* unknown src alignment and < 8 bytes to go */ -small_csumcpy: - move a1, ta2 - - andi ta0, a1, 4 - beqz ta0, 1f - andi ta0, a1, 2 - - /* Still a full word to go */ - ulw ta1, (src) - daddiu src, 4 - ADDC(sum, ta1) - -1: move ta1, zero - beqz ta0, 1f - andi ta0, a1, 1 - - /* Still a halfword to go */ - ulhu ta1, (src) - daddiu src, 2 - -1: beqz ta0, 1f - sll ta1, ta1, 16 - - lbu ta2, (src) - nop - -#ifdef __MIPSEB__ - sll ta2, ta2, 8 -#endif - or ta1, ta2 - -1: ADDC(sum, ta1) - - /* fold checksum */ - sll v1, sum, 16 - addu sum, v1 - sltu v1, sum, v1 - srl sum, sum, 16 - addu sum, v1 - - /* odd buffer alignment? */ - beqz t3, 1f - nop - sll v1, sum, 8 - srl sum, sum, 8 - or sum, v1 - andi sum, 0xffff -1: - .set reorder - /* Add the passed partial csum. */ - ADDC(sum, a2) - jr ra - .set noreorder - -/* ------------------------------------------------------------------------- */ - - .align 5 -LEAF(csum_partial) - move sum, zero - move t3, zero - - sltiu t8, a1, 0x8 - bnez t8, small_csumcpy /* < 8 bytes to copy */ - move ta2, a1 - - beqz a1, out - andi t3, src, 0x1 /* odd buffer? */ - -hword_align: - beqz t3, word_align - andi t8, src, 0x2 - - lbu ta0, (src) - dsubu a1, a1, 0x1 -#ifdef __MIPSEL__ - sll ta0, ta0, 8 -#endif - ADDC(sum, ta0) - daddu src, src, 0x1 - andi t8, src, 0x2 - -word_align: - beqz t8, dword_align - sltiu t8, a1, 56 - - lhu ta0, (src) - dsubu a1, a1, 0x2 - ADDC(sum, ta0) - sltiu t8, a1, 56 - daddu src, src, 0x2 - -dword_align: - bnez t8, do_end_words - move t8, a1 - - andi t8, src, 0x4 - beqz t8, qword_align - andi t8, src, 0x8 - - lw ta0, 0x00(src) - dsubu a1, a1, 0x4 - ADDC(sum, ta0) - daddu src, src, 0x4 - andi t8, src, 0x8 - -qword_align: - beqz t8, oword_align - andi t8, src, 0x10 - - lw ta0, 0x00(src) - lw ta1, 0x04(src) - dsubu a1, a1, 0x8 - ADDC(sum, ta0) - ADDC(sum, ta1) - daddu src, src, 0x8 - andi t8, src, 0x10 - -oword_align: - beqz t8, begin_movement - dsrl t8, a1, 0x7 - - lw ta3, 0x08(src) - lw t0, 0x0c(src) - lw ta0, 0x00(src) - lw ta1, 0x04(src) - ADDC(sum, ta3) - ADDC(sum, t0) - ADDC(sum, ta0) - ADDC(sum, ta1) - dsubu a1, a1, 0x10 - daddu src, src, 0x10 - dsrl t8, a1, 0x7 - -begin_movement: - beqz t8, 1f - andi ta2, a1, 0x40 - -move_128bytes: - CSUM_BIGCHUNK(src, 0x00, sum, ta0, ta1, ta3, t0) - CSUM_BIGCHUNK(src, 0x20, sum, ta0, ta1, ta3, t0) - CSUM_BIGCHUNK(src, 0x40, sum, ta0, ta1, ta3, t0) - CSUM_BIGCHUNK(src, 0x60, sum, ta0, ta1, ta3, t0) - dsubu t8, t8, 0x01 - bnez t8, move_128bytes - daddu src, src, 0x80 - -1: - beqz ta2, 1f - andi ta2, a1, 0x20 - -move_64bytes: - CSUM_BIGCHUNK(src, 0x00, sum, ta0, ta1, ta3, t0) - CSUM_BIGCHUNK(src, 0x20, sum, ta0, ta1, ta3, t0) - daddu src, src, 0x40 - -1: - beqz ta2, do_end_words - andi t8, a1, 0x1c - -move_32bytes: - CSUM_BIGCHUNK(src, 0x00, sum, ta0, ta1, ta3, t0) - andi t8, a1, 0x1c - daddu src, src, 0x20 - -do_end_words: - beqz t8, maybe_end_cruft - dsrl t8, t8, 0x2 - -end_words: - lw ta0, (src) - dsubu t8, t8, 0x1 - ADDC(sum, ta0) - bnez t8, end_words - daddu src, src, 0x4 - -maybe_end_cruft: - andi ta2, a1, 0x3 - -small_memcpy: - j small_csumcpy; move a1, ta2 /* XXX ??? */ - beqz t2, out - move a1, ta2 - -end_bytes: - lb ta0, (src) - dsubu a1, a1, 0x1 - bnez a2, end_bytes - daddu src, src, 0x1 - -out: - jr ra - move v0, sum - END(csum_partial) diff --git a/arch/mips/lib-64/dump_tlb.c b/arch/mips/lib-64/dump_tlb.c deleted file mode 100644 index 11a5f015f04..00000000000 --- a/arch/mips/lib-64/dump_tlb.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * Dump R4x00 TLB for debugging purposes. - * - * Copyright (C) 1994, 1995 by Waldorf Electronics, written by Ralf Baechle. - * Copyright (C) 1999 by Silicon Graphics, Inc. - */ -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/string.h> - -#include <asm/bootinfo.h> -#include <asm/cachectl.h> -#include <asm/cpu.h> -#include <asm/mipsregs.h> -#include <asm/page.h> -#include <asm/pgtable.h> - -static inline const char *msk2str(unsigned int mask) -{ - switch (mask) { - case PM_4K: return "4kb"; - case PM_16K: return "16kb"; - case PM_64K: return "64kb"; - case PM_256K: return "256kb"; -#ifndef CONFIG_CPU_VR41XX - case PM_1M: return "1Mb"; - case PM_4M: return "4Mb"; - case PM_16M: return "16Mb"; - case PM_64M: return "64Mb"; - case PM_256M: return "256Mb"; -#endif - } - - return "unknown"; -} - -#define BARRIER() \ - __asm__ __volatile__( \ - ".set\tnoreorder\n\t" \ - "nop;nop;nop;nop;nop;nop;nop\n\t" \ - ".set\treorder"); - -void dump_tlb(int first, int last) -{ - unsigned long s_entryhi, entryhi, entrylo0, entrylo1, asid; - unsigned int s_index, pagemask, c0, c1, i; - - s_entryhi = read_c0_entryhi(); - s_index = read_c0_index(); - asid = s_entryhi & 0xff; - - for (i = first; i <= last; i++) { - write_c0_index(i); - BARRIER(); - tlb_read(); - BARRIER(); - pagemask = read_c0_pagemask(); - entryhi = read_c0_entryhi(); - entrylo0 = read_c0_entrylo0(); - entrylo1 = read_c0_entrylo1(); - - /* Unused entries have a virtual address of CKSEG0. */ - if ((entryhi & ~0x1ffffUL) != CKSEG0 - && (entryhi & 0xff) == asid) { - /* - * Only print entries in use - */ - printk("Index: %2d pgmask=%s ", i, msk2str(pagemask)); - - c0 = (entrylo0 >> 3) & 7; - c1 = (entrylo1 >> 3) & 7; - - printk("va=%011lx asid=%02lx\n", - (entryhi & ~0x1fffUL), - entryhi & 0xff); - printk("\t[pa=%011lx c=%d d=%d v=%d g=%ld] ", - (entrylo0 << 6) & PAGE_MASK, c0, - (entrylo0 & 4) ? 1 : 0, - (entrylo0 & 2) ? 1 : 0, - (entrylo0 & 1)); - printk("[pa=%011lx c=%d d=%d v=%d g=%ld]\n", - (entrylo1 << 6) & PAGE_MASK, c1, - (entrylo1 & 4) ? 1 : 0, - (entrylo1 & 2) ? 1 : 0, - (entrylo1 & 1)); - } - } - printk("\n"); - - write_c0_entryhi(s_entryhi); - write_c0_index(s_index); -} - -void dump_tlb_all(void) -{ - dump_tlb(0, current_cpu_data.tlbsize - 1); -} - -void dump_tlb_wired(void) -{ - int wired; - - wired = read_c0_wired(); - printk("Wired: %d", wired); - dump_tlb(0, read_c0_wired()); -} - -void dump_tlb_addr(unsigned long addr) -{ - unsigned int flags, oldpid; - int index; - - local_irq_save(flags); - oldpid = read_c0_entryhi() & 0xff; - BARRIER(); - write_c0_entryhi((addr & PAGE_MASK) | oldpid); - BARRIER(); - tlb_probe(); - BARRIER(); - index = read_c0_index(); - write_c0_entryhi(oldpid); - local_irq_restore(flags); - - if (index < 0) { - printk("No entry for address 0x%08lx in TLB\n", addr); - return; - } - - printk("Entry %d maps address 0x%08lx\n", index, addr); - dump_tlb(index, index); -} - -void dump_tlb_nonwired(void) -{ - dump_tlb(read_c0_wired(), current_cpu_data.tlbsize - 1); -} - -void dump_list_process(struct task_struct *t, void *address) -{ - pgd_t *page_dir, *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte, page; - unsigned long addr, val; - - addr = (unsigned long) address; - - printk("Addr == %08lx\n", addr); - printk("tasks->mm.pgd == %08lx\n", (unsigned long) t->mm->pgd); - - page_dir = pgd_offset(t->mm, 0); - printk("page_dir == %016lx\n", (unsigned long) page_dir); - - pgd = pgd_offset(t->mm, addr); - printk("pgd == %016lx\n", (unsigned long) pgd); - - pud = pud_offset(pgd, addr); - printk("pud == %016lx\n", (unsigned long) pud); - - pmd = pmd_offset(pud, addr); - printk("pmd == %016lx\n", (unsigned long) pmd); - - pte = pte_offset(pmd, addr); - printk("pte == %016lx\n", (unsigned long) pte); - - page = *pte; - printk("page == %08lx\n", pte_val(page)); - - val = pte_val(page); - if (val & _PAGE_PRESENT) printk("present "); - if (val & _PAGE_READ) printk("read "); - if (val & _PAGE_WRITE) printk("write "); - if (val & _PAGE_ACCESSED) printk("accessed "); - if (val & _PAGE_MODIFIED) printk("modified "); - if (val & _PAGE_R4KBUG) printk("r4kbug "); - if (val & _PAGE_GLOBAL) printk("global "); - if (val & _PAGE_VALID) printk("valid "); - printk("\n"); -} - -void dump_list_current(void *address) -{ - dump_list_process(current, address); -} - -unsigned int vtop(void *address) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned int addr, paddr; - - addr = (unsigned long) address; - pgd = pgd_offset(current->mm, addr); - pud = pud_offset(pgd, addr); - pmd = pmd_offset(pud, addr); - pte = pte_offset(pmd, addr); - paddr = (CKSEG1 | (unsigned int) pte_val(*pte)) & PAGE_MASK; - paddr |= (addr & ~PAGE_MASK); - - return paddr; -} - -void dump16(unsigned long *p) -{ - int i; - - for (i = 0; i < 8; i++) { - printk("*%08lx == %08lx, ", (unsigned long)p, *p); - p++; - printk("*%08lx == %08lx\n", (unsigned long)p, *p); - p++; - } -} diff --git a/arch/mips/lib-64/memset.S b/arch/mips/lib-64/memset.S deleted file mode 100644 index e2c42c85113..00000000000 --- a/arch/mips/lib-64/memset.S +++ /dev/null @@ -1,142 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1998, 1999, 2000 by Ralf Baechle - * Copyright (C) 1999, 2000 Silicon Graphics, Inc. - */ -#include <asm/asm.h> -#include <asm/asm-offsets.h> -#include <asm/regdef.h> - -#define EX(insn,reg,addr,handler) \ -9: insn reg, addr; \ - .section __ex_table,"a"; \ - PTR 9b, handler; \ - .previous - - .macro f_fill64 dst, offset, val, fixup - EX(LONG_S, \val, (\offset + 0 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 1 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 2 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 3 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 4 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 5 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 6 * LONGSIZE)(\dst), \fixup) - EX(LONG_S, \val, (\offset + 7 * LONGSIZE)(\dst), \fixup) - .endm - -/* - * memset(void *s, int c, size_t n) - * - * a0: start of area to clear - * a1: char to fill with - * a2: size of area to clear - */ - .set noreorder - .align 5 -LEAF(memset) - beqz a1, 1f - move v0, a0 /* result */ - - andi a1, 0xff /* spread fillword */ - dsll t1, a1, 8 - or a1, t1 - dsll t1, a1, 16 - or a1, t1 - dsll t1, a1, 32 - or a1, t1 -1: - -FEXPORT(__bzero) - sltiu t0, a2, LONGSIZE /* very small region? */ - bnez t0, small_memset - andi t0, a0, LONGMASK /* aligned? */ - - beqz t0, 1f - PTR_SUBU t0, LONGSIZE /* alignment in bytes */ - -#ifdef __MIPSEB__ - EX(sdl, a1, (a0), first_fixup) /* make dword aligned */ -#endif -#ifdef __MIPSEL__ - EX(sdr, a1, (a0), first_fixup) /* make dword aligned */ -#endif - PTR_SUBU a0, t0 /* long align ptr */ - PTR_ADDU a2, t0 /* correct size */ - -1: ori t1, a2, 0x3f /* # of full blocks */ - xori t1, 0x3f - beqz t1, memset_partial /* no block to fill */ - andi t0, a2, 0x38 - - PTR_ADDU t1, a0 /* end address */ - .set reorder -1: PTR_ADDIU a0, 64 - f_fill64 a0, -64, a1, fwd_fixup - bne t1, a0, 1b - .set noreorder - -memset_partial: - PTR_LA t1, 2f /* where to start */ - .set noat - dsrl AT, t0, 1 - PTR_SUBU t1, AT - .set noat - jr t1 - PTR_ADDU a0, t0 /* dest ptr */ - - .set push - .set noreorder - .set nomacro - f_fill64 a0, -64, a1, partial_fixup /* ... but first do longs ... */ -2: .set pop - andi a2, LONGMASK /* At most one long to go */ - - beqz a2, 1f - PTR_ADDU a0, a2 /* What's left */ -#ifdef __MIPSEB__ - EX(sdr, a1, -1(a0), last_fixup) -#endif -#ifdef __MIPSEL__ - EX(sdl, a1, -1(a0), last_fixup) -#endif -1: jr ra - move a2, zero - -small_memset: - beqz a2, 2f - PTR_ADDU t1, a0, a2 - -1: PTR_ADDIU a0, 1 /* fill bytewise */ - bne t1, a0, 1b - sb a1, -1(a0) - -2: jr ra /* done */ - move a2, zero - END(memset) - -first_fixup: - jr ra - nop - -fwd_fixup: - PTR_L t0, TI_TASK($28) - LONG_L t0, THREAD_BUADDR(t0) - andi a2, 0x3f - LONG_ADDU a2, t1 - jr ra - LONG_SUBU a2, t0 - -partial_fixup: - PTR_L t0, TI_TASK($28) - LONG_L t0, THREAD_BUADDR(t0) - andi a2, LONGMASK - LONG_ADDU a2, t1 - jr ra - LONG_SUBU a2, t0 - -last_fixup: - jr ra - andi v1, a2, LONGMASK diff --git a/arch/mips/lib-64/watch.S b/arch/mips/lib-64/watch.S deleted file mode 100644 index f9143401369..00000000000 --- a/arch/mips/lib-64/watch.S +++ /dev/null @@ -1,57 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Kernel debug stuff to use the Watch registers. - * Useful to find stack overflows, dangling pointers etc. - * - * Copyright (C) 1995, 1996, 1999, 2001 by Ralf Baechle - */ -#include <asm/asm.h> -#include <asm/mipsregs.h> -#include <asm/regdef.h> - - .set noreorder -/* - * Parameter: a0 - physical address to watch - * a1 - set bit #1 to trap on load references - * bit #0 to trap on store references - * Results : none - */ - LEAF(__watch_set) - ori a0, 7 - xori a0, 7 - or a0, a1 - mtc0 a0, CP0_WATCHLO - sd a0, watch_savelo - dsrl32 a0, a0, 0 - - jr ra - mtc0 zero, CP0_WATCHHI - END(__watch_set) - -/* - * Parameter: none - * Results : none - */ - LEAF(__watch_clear) - jr ra - mtc0 zero, CP0_WATCHLO - END(__watch_clear) - -/* - * Parameter: none - * Results : none - */ - LEAF(__watch_reenable) - ld t0, watch_savelo - jr ra - mtc0 t0, CP0_WATCHLO - END(__watch_reenable) - -/* - * Saved value of the c0_watchlo register for watch_reenable() - */ - .local watch_savelo - .comm watch_savelo, 8, 8 |