diff options
Diffstat (limited to 'arch/mips/mm')
-rw-r--r-- | arch/mips/mm/fault.c | 16 | ||||
-rw-r--r-- | arch/mips/mm/init.c | 3 | ||||
-rw-r--r-- | arch/mips/mm/pgtable-64.c | 33 | ||||
-rw-r--r-- | arch/mips/mm/tlbex.c | 22 | ||||
-rw-r--r-- | arch/mips/mm/uasm-mips.c | 1 | ||||
-rw-r--r-- | arch/mips/mm/uasm.c | 159 |
6 files changed, 144 insertions, 90 deletions
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index 3bef306..4f8f5bf 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -267,19 +267,19 @@ do_sigbus: /* Kernel mode? Handle exceptions or die */ if (!user_mode(regs)) goto no_context; - else + /* * Send a sigbus, regardless of whether we were in kernel * or user mode. */ #if 0 - printk("do_page_fault() #3: sending SIGBUS to %s for " - "invalid %s\n%0*lx (epc == %0*lx, ra == %0*lx)\n", - tsk->comm, - write ? "write access to" : "read access from", - field, address, - field, (unsigned long) regs->cp0_epc, - field, (unsigned long) regs->regs[31]); + printk("do_page_fault() #3: sending SIGBUS to %s for " + "invalid %s\n%0*lx (epc == %0*lx, ra == %0*lx)\n", + tsk->comm, + write ? "write access to" : "read access from", + field, address, + field, (unsigned long) regs->cp0_epc, + field, (unsigned long) regs->regs[31]); #endif current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f; tsk->thread.cp0_badvaddr = address; diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 3ca2028..8ce2983 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -537,6 +537,9 @@ unsigned long pgd_current[NR_CPUS]; * it in the linker script. */ pgd_t swapper_pg_dir[_PTRS_PER_PGD] __section(.bss..swapper_pg_dir); +#ifndef __PAGETABLE_PUD_FOLDED +pud_t invalid_pud_table[PTRS_PER_PUD] __page_aligned_bss; +#endif #ifndef __PAGETABLE_PMD_FOLDED pmd_t invalid_pmd_table[PTRS_PER_PMD] __page_aligned_bss; EXPORT_SYMBOL_GPL(invalid_pmd_table); diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c index 0ae7b28..6fd6e96 100644 --- a/arch/mips/mm/pgtable-64.c +++ b/arch/mips/mm/pgtable-64.c @@ -19,10 +19,12 @@ void pgd_init(unsigned long page) unsigned long *p, *end; unsigned long entry; -#ifdef __PAGETABLE_PMD_FOLDED - entry = (unsigned long)invalid_pte_table; -#else +#if !defined(__PAGETABLE_PUD_FOLDED) + entry = (unsigned long)invalid_pud_table; +#elif !defined(__PAGETABLE_PMD_FOLDED) entry = (unsigned long)invalid_pmd_table; +#else + entry = (unsigned long)invalid_pte_table; #endif p = (unsigned long *) page; @@ -64,6 +66,28 @@ void pmd_init(unsigned long addr, unsigned long pagetable) EXPORT_SYMBOL_GPL(pmd_init); #endif +#ifndef __PAGETABLE_PUD_FOLDED +void pud_init(unsigned long addr, unsigned long pagetable) +{ + unsigned long *p, *end; + + p = (unsigned long *)addr; + end = p + PTRS_PER_PUD; + + do { + p[0] = pagetable; + p[1] = pagetable; + p[2] = pagetable; + p[3] = pagetable; + p[4] = pagetable; + p += 8; + p[-3] = pagetable; + p[-2] = pagetable; + p[-1] = pagetable; + } while (p != end); +} +#endif + pmd_t mk_pmd(struct page *page, pgprot_t prot) { pmd_t pmd; @@ -87,6 +111,9 @@ void __init pagetable_init(void) /* Initialize the entire pgd. */ pgd_init((unsigned long)swapper_pg_dir); +#ifndef __PAGETABLE_PUD_FOLDED + pud_init((unsigned long)invalid_pud_table, (unsigned long)invalid_pmd_table); +#endif #ifndef __PAGETABLE_PMD_FOLDED pmd_init((unsigned long)invalid_pmd_table, (unsigned long)invalid_pte_table); #endif diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 4f642e0..ed1c529 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -865,6 +865,13 @@ void build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, uasm_i_andi(p, tmp, tmp, (PTRS_PER_PGD - 1)<<3); uasm_i_daddu(p, ptr, ptr, tmp); /* add in pgd offset */ +#ifndef __PAGETABLE_PUD_FOLDED + uasm_i_dmfc0(p, tmp, C0_BADVADDR); /* get faulting address */ + uasm_i_ld(p, ptr, 0, ptr); /* get pud pointer */ + uasm_i_dsrl_safe(p, tmp, tmp, PUD_SHIFT - 3); /* get pud offset in bytes */ + uasm_i_andi(p, tmp, tmp, (PTRS_PER_PUD - 1) << 3); + uasm_i_daddu(p, ptr, ptr, tmp); /* add in pud offset */ +#endif #ifndef __PAGETABLE_PMD_FOLDED uasm_i_dmfc0(p, tmp, C0_BADVADDR); /* get faulting address */ uasm_i_ld(p, ptr, 0, ptr); /* get pmd pointer */ @@ -1184,6 +1191,21 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l, uasm_i_ld(p, LOC_PTEP, 0, ptr); /* get pmd pointer */ } +#ifndef __PAGETABLE_PUD_FOLDED + /* get pud offset in bytes */ + uasm_i_dsrl_safe(p, scratch, tmp, PUD_SHIFT - 3); + uasm_i_andi(p, scratch, scratch, (PTRS_PER_PUD - 1) << 3); + + if (use_lwx_insns()) { + UASM_i_LWX(p, ptr, scratch, ptr); + } else { + uasm_i_daddu(p, ptr, ptr, scratch); /* add in pmd offset */ + UASM_i_LW(p, ptr, 0, ptr); + } + /* ptr contains a pointer to PMD entry */ + /* tmp contains the address */ +#endif + #ifndef __PAGETABLE_PMD_FOLDED /* get pmd offset in bytes */ uasm_i_dsrl_safe(p, scratch, tmp, PMD_SHIFT - 3); diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c index 763d3f1..2277499 100644 --- a/arch/mips/mm/uasm-mips.c +++ b/arch/mips/mm/uasm-mips.c @@ -103,6 +103,7 @@ static struct insn insn_table[] = { { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_ldx, M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD }, { insn_lh, M(lh_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_lhu, M(lhu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, #ifndef CONFIG_CPU_MIPSR6 { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c index a829704..730363b 100644 --- a/arch/mips/mm/uasm.c +++ b/arch/mips/mm/uasm.c @@ -61,7 +61,7 @@ enum opcode { insn_sllv, insn_slt, insn_sltiu, insn_sltu, insn_sra, insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall, insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh, insn_xor, - insn_xori, insn_yield, insn_lddir, insn_ldpte, + insn_xori, insn_yield, insn_lddir, insn_ldpte, insn_lhu, }; struct insn { @@ -297,6 +297,7 @@ I_u1(_jr) I_u2s3u1(_lb) I_u2s3u1(_ld) I_u2s3u1(_lh) +I_u2s3u1(_lhu) I_u2s3u1(_ll) I_u2s3u1(_lld) I_u1s2(_lui) @@ -349,7 +350,7 @@ I_u2u1u3(_lddir) #ifdef CONFIG_CPU_CAVIUM_OCTEON #include <asm/octeon/octeon.h> -void ISAFUNC(uasm_i_pref)(u32 **buf, unsigned int a, signed int b, +void uasm_i_pref(u32 **buf, unsigned int a, signed int b, unsigned int c) { if (CAVIUM_OCTEON_DCACHE_PREFETCH_WAR && a <= 24 && a != 5) @@ -361,26 +362,26 @@ void ISAFUNC(uasm_i_pref)(u32 **buf, unsigned int a, signed int b, else build_insn(buf, insn_pref, c, a, b); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_i_pref)); +UASM_EXPORT_SYMBOL(uasm_i_pref); #else I_u2s3u1(_pref) #endif /* Handle labels. */ -void ISAFUNC(uasm_build_label)(struct uasm_label **lab, u32 *addr, int lid) +void uasm_build_label(struct uasm_label **lab, u32 *addr, int lid) { (*lab)->addr = addr; (*lab)->lab = lid; (*lab)++; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_build_label)); +UASM_EXPORT_SYMBOL(uasm_build_label); -int ISAFUNC(uasm_in_compat_space_p)(long addr) +int uasm_in_compat_space_p(long addr) { /* Is this address in 32bit compat space? */ return addr == (int)addr; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_in_compat_space_p)); +UASM_EXPORT_SYMBOL(uasm_in_compat_space_p); static int uasm_rel_highest(long val) { @@ -400,64 +401,64 @@ static int uasm_rel_higher(long val) #endif } -int ISAFUNC(uasm_rel_hi)(long val) +int uasm_rel_hi(long val) { return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_rel_hi)); +UASM_EXPORT_SYMBOL(uasm_rel_hi); -int ISAFUNC(uasm_rel_lo)(long val) +int uasm_rel_lo(long val) { return ((val & 0xffff) ^ 0x8000) - 0x8000; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_rel_lo)); +UASM_EXPORT_SYMBOL(uasm_rel_lo); -void ISAFUNC(UASM_i_LA_mostly)(u32 **buf, unsigned int rs, long addr) +void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr) { - if (!ISAFUNC(uasm_in_compat_space_p)(addr)) { - ISAFUNC(uasm_i_lui)(buf, rs, uasm_rel_highest(addr)); + if (!uasm_in_compat_space_p(addr)) { + uasm_i_lui(buf, rs, uasm_rel_highest(addr)); if (uasm_rel_higher(addr)) - ISAFUNC(uasm_i_daddiu)(buf, rs, rs, uasm_rel_higher(addr)); - if (ISAFUNC(uasm_rel_hi(addr))) { - ISAFUNC(uasm_i_dsll)(buf, rs, rs, 16); - ISAFUNC(uasm_i_daddiu)(buf, rs, rs, - ISAFUNC(uasm_rel_hi)(addr)); - ISAFUNC(uasm_i_dsll)(buf, rs, rs, 16); + uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr)); + if (uasm_rel_hi(addr)) { + uasm_i_dsll(buf, rs, rs, 16); + uasm_i_daddiu(buf, rs, rs, + uasm_rel_hi(addr)); + uasm_i_dsll(buf, rs, rs, 16); } else - ISAFUNC(uasm_i_dsll32)(buf, rs, rs, 0); + uasm_i_dsll32(buf, rs, rs, 0); } else - ISAFUNC(uasm_i_lui)(buf, rs, ISAFUNC(uasm_rel_hi(addr))); + uasm_i_lui(buf, rs, uasm_rel_hi(addr)); } -UASM_EXPORT_SYMBOL(ISAFUNC(UASM_i_LA_mostly)); +UASM_EXPORT_SYMBOL(UASM_i_LA_mostly); -void ISAFUNC(UASM_i_LA)(u32 **buf, unsigned int rs, long addr) +void UASM_i_LA(u32 **buf, unsigned int rs, long addr) { - ISAFUNC(UASM_i_LA_mostly)(buf, rs, addr); - if (ISAFUNC(uasm_rel_lo(addr))) { - if (!ISAFUNC(uasm_in_compat_space_p)(addr)) - ISAFUNC(uasm_i_daddiu)(buf, rs, rs, - ISAFUNC(uasm_rel_lo(addr))); + UASM_i_LA_mostly(buf, rs, addr); + if (uasm_rel_lo(addr)) { + if (!uasm_in_compat_space_p(addr)) + uasm_i_daddiu(buf, rs, rs, + uasm_rel_lo(addr)); else - ISAFUNC(uasm_i_addiu)(buf, rs, rs, - ISAFUNC(uasm_rel_lo(addr))); + uasm_i_addiu(buf, rs, rs, + uasm_rel_lo(addr)); } } -UASM_EXPORT_SYMBOL(ISAFUNC(UASM_i_LA)); +UASM_EXPORT_SYMBOL(UASM_i_LA); /* Handle relocations. */ -void ISAFUNC(uasm_r_mips_pc16)(struct uasm_reloc **rel, u32 *addr, int lid) +void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid) { (*rel)->addr = addr; (*rel)->type = R_MIPS_PC16; (*rel)->lab = lid; (*rel)++; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_r_mips_pc16)); +UASM_EXPORT_SYMBOL(uasm_r_mips_pc16); static inline void __resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); -void ISAFUNC(uasm_resolve_relocs)(struct uasm_reloc *rel, +void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) { struct uasm_label *l; @@ -467,39 +468,39 @@ void ISAFUNC(uasm_resolve_relocs)(struct uasm_reloc *rel, if (rel->lab == l->lab) __resolve_relocs(rel, l); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_resolve_relocs)); +UASM_EXPORT_SYMBOL(uasm_resolve_relocs); -void ISAFUNC(uasm_move_relocs)(struct uasm_reloc *rel, u32 *first, u32 *end, +void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off) { for (; rel->lab != UASM_LABEL_INVALID; rel++) if (rel->addr >= first && rel->addr < end) rel->addr += off; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_move_relocs)); +UASM_EXPORT_SYMBOL(uasm_move_relocs); -void ISAFUNC(uasm_move_labels)(struct uasm_label *lab, u32 *first, u32 *end, +void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off) { for (; lab->lab != UASM_LABEL_INVALID; lab++) if (lab->addr >= first && lab->addr < end) lab->addr += off; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_move_labels)); +UASM_EXPORT_SYMBOL(uasm_move_labels); -void ISAFUNC(uasm_copy_handler)(struct uasm_reloc *rel, struct uasm_label *lab, +void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, u32 *end, u32 *target) { long off = (long)(target - first); memcpy(target, first, (end - first) * sizeof(u32)); - ISAFUNC(uasm_move_relocs(rel, first, end, off)); - ISAFUNC(uasm_move_labels(lab, first, end, off)); + uasm_move_relocs(rel, first, end, off); + uasm_move_labels(lab, first, end, off); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_copy_handler)); +UASM_EXPORT_SYMBOL(uasm_copy_handler); -int ISAFUNC(uasm_insn_has_bdelay)(struct uasm_reloc *rel, u32 *addr) +int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr) { for (; rel->lab != UASM_LABEL_INVALID; rel++) { if (rel->addr == addr @@ -510,92 +511,92 @@ int ISAFUNC(uasm_insn_has_bdelay)(struct uasm_reloc *rel, u32 *addr) return 0; } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_insn_has_bdelay)); +UASM_EXPORT_SYMBOL(uasm_insn_has_bdelay); /* Convenience functions for labeled branches. */ -void ISAFUNC(uasm_il_bltz)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bltz)(p, reg, 0); + uasm_i_bltz(p, reg, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bltz)); +UASM_EXPORT_SYMBOL(uasm_il_bltz); -void ISAFUNC(uasm_il_b)(u32 **p, struct uasm_reloc **r, int lid) +void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_b)(p, 0); + uasm_i_b(p, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_b)); +UASM_EXPORT_SYMBOL(uasm_il_b); -void ISAFUNC(uasm_il_beq)(u32 **p, struct uasm_reloc **r, unsigned int r1, +void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1, unsigned int r2, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_beq)(p, r1, r2, 0); + uasm_i_beq(p, r1, r2, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_beq)); +UASM_EXPORT_SYMBOL(uasm_il_beq); -void ISAFUNC(uasm_il_beqz)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_beqz)(p, reg, 0); + uasm_i_beqz(p, reg, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_beqz)); +UASM_EXPORT_SYMBOL(uasm_il_beqz); -void ISAFUNC(uasm_il_beqzl)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_beqzl)(p, reg, 0); + uasm_i_beqzl(p, reg, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_beqzl)); +UASM_EXPORT_SYMBOL(uasm_il_beqzl); -void ISAFUNC(uasm_il_bne)(u32 **p, struct uasm_reloc **r, unsigned int reg1, +void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, unsigned int reg2, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bne)(p, reg1, reg2, 0); + uasm_i_bne(p, reg1, reg2, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bne)); +UASM_EXPORT_SYMBOL(uasm_il_bne); -void ISAFUNC(uasm_il_bnez)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bnez)(p, reg, 0); + uasm_i_bnez(p, reg, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bnez)); +UASM_EXPORT_SYMBOL(uasm_il_bnez); -void ISAFUNC(uasm_il_bgezl)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bgezl)(p, reg, 0); + uasm_i_bgezl(p, reg, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bgezl)); +UASM_EXPORT_SYMBOL(uasm_il_bgezl); -void ISAFUNC(uasm_il_bgez)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bgez)(p, reg, 0); + uasm_i_bgez(p, reg, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bgez)); +UASM_EXPORT_SYMBOL(uasm_il_bgez); -void ISAFUNC(uasm_il_bbit0)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg, unsigned int bit, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bbit0)(p, reg, bit, 0); + uasm_i_bbit0(p, reg, bit, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bbit0)); +UASM_EXPORT_SYMBOL(uasm_il_bbit0); -void ISAFUNC(uasm_il_bbit1)(u32 **p, struct uasm_reloc **r, unsigned int reg, +void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg, unsigned int bit, int lid) { uasm_r_mips_pc16(r, *p, lid); - ISAFUNC(uasm_i_bbit1)(p, reg, bit, 0); + uasm_i_bbit1(p, reg, bit, 0); } -UASM_EXPORT_SYMBOL(ISAFUNC(uasm_il_bbit1)); +UASM_EXPORT_SYMBOL(uasm_il_bbit1); |