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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-06 09:13:11 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-06 09:13:11 -0400 |
commit | 4305f42401b29e2e024bd064618faf25aef5cb69 (patch) | |
tree | 1bc924cfa60c9efbb21e07c1d834f495301cffc8 /arch/mips/mm | |
parent | db8262787e82b5c0fa57bd9d676add187519a751 (diff) | |
parent | 4a89cf810130fde41e3fc729e770cb1a5a87d245 (diff) | |
download | linux-4305f42401b29e2e024bd064618faf25aef5cb69.tar.gz linux-4305f42401b29e2e024bd064618faf25aef5cb69.tar.bz2 linux-4305f42401b29e2e024bd064618faf25aef5cb69.zip |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS for 4.8. Also includes is a
minor SSB cleanup as SSB code traditionally is merged through the MIPS
tree:
ATH25:
- MIPS: Add default configuration for ath25
Boot:
- For zboot, copy appended dtb to the end of the kernel
- store the appended dtb address in a variable
BPF:
- Fix off by one error in offset allocation
Cobalt code:
- Fix typos
Core code:
- debugfs_create_file returns NULL on error, so don't use IS_ERR for
testing for errors.
- Fix double locking issue in RM7000 S-cache code. This would only
affect RM7000 ARC systems on reboot.
- Fix page table corruption on THP permission changes.
- Use compat_sys_keyctl for 32 bit userspace on 64 bit kernels.
David says, there are no compatibility issues raised by this fix.
- Move some signal code around.
- Rewrite r4k count/compare clockevent device registration such that
min_delta_ticks/max_delta_ticks files are guaranteed to be
initialized.
- Only register r4k count/compare as clockevent device if we can
assume the clock to be constant.
- Fix MSA asm warnings in control reg accessors
- uasm and tlbex fixes and tweaking.
- Print segment physical address when EU=1.
- Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO.
- CP: Allow booting by VP other than VP 0
- Cache handling fixes and optimizations for r4k class caches
- Add hotplug support for R6 processors
- Cleanup hotplug bits in kconfig
- traps: return correct si code for accessing nonmapped addresses
- Remove cpu_has_safe_index_cacheops
Lantiq:
- Register IRQ handler for virtual IRQ number
- Fix EIU interrupt loading code
- Use the real EXIN count
- Fix build error.
Loongson 3:
- Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES
Octeon:
- Delete built-in DTB pruning code for D-Link DSR-1000N.
- Clean up GPIO definitions in dlink_dsr-1000n.dts.
- Add more LEDs to the DSR-100n DTS
- Fix off by one in octeon_irq_gpio_map()
- Typo fixes
- Enable SATA by default in cavium_octeon_defconfig
- Support readq/writeq()
- Remove forced mappings of USB interrupts.
- Ensure DMA descriptors are always in the low 4GB
- Improve USB reset code for OCTEON II.
Pistachio:
- Add maintainers entry for pistachio SoC Support
- Remove plat_setup_iocoherency
Ralink:
- Fix pwm UART in spis group pinmux.
SSB:
- Change bare unsigned to unsigned int to suit coding style
Tools:
- Fix reloc tool compiler warnings.
Other:
- Delete use of ARCH_WANT_OPTIONAL_GPIOLIB"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (61 commits)
MIPS: mm: Fix definition of R6 cache instruction
MIPS: tools: Fix relocs tool compiler warnings
MIPS: Cobalt: Fix typo
MIPS: Octeon: Fix typo
MIPS: Lantiq: Fix build failure
MIPS: Use CPHYSADDR to implement mips32 __pa
MIPS: Octeon: Dlink_dsr-1000n.dts: add more leds.
MIPS: Octeon: Clean up GPIO definitions in dlink_dsr-1000n.dts.
MIPS: Octeon: Delete built-in DTB pruning code for D-Link DSR-1000N.
MIPS: store the appended dtb address in a variable
MIPS: ZBOOT: copy appended dtb to the end of the kernel
MIPS: ralink: fix spis group pinmux
MIPS: Factor o32 specific code into signal_o32.c
MIPS: non-exec stack & heap when non-exec PT_GNU_STACK is present
MIPS: Use per-mm page to execute branch delay slot instructions
MIPS: Modify error handling
MIPS: c-r4k: Use SMP calls for CM indexed cache ops
MIPS: c-r4k: Avoid small flush_icache_range SMP calls
MIPS: c-r4k: Local flush_icache_range cache op override
MIPS: c-r4k: Split r4k_flush_kernel_vmap_range()
...
Diffstat (limited to 'arch/mips/mm')
-rw-r--r-- | arch/mips/mm/c-r4k.c | 284 | ||||
-rw-r--r-- | arch/mips/mm/sc-debugfs.c | 4 | ||||
-rw-r--r-- | arch/mips/mm/sc-rm7k.c | 2 | ||||
-rw-r--r-- | arch/mips/mm/tlbex.c | 2 | ||||
-rw-r--r-- | arch/mips/mm/uasm-mips.c | 2 | ||||
-rw-r--r-- | arch/mips/mm/uasm.c | 6 |
6 files changed, 233 insertions, 67 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 7a9c345e87e5..cd72805b64a7 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -40,6 +40,51 @@ #include <asm/mips-cm.h> /* + * Bits describing what cache ops an SMP callback function may perform. + * + * R4K_HIT - Virtual user or kernel address based cache operations. The + * active_mm must be checked before using user addresses, falling + * back to kmap. + * R4K_INDEX - Index based cache operations. + */ + +#define R4K_HIT BIT(0) +#define R4K_INDEX BIT(1) + +/** + * r4k_op_needs_ipi() - Decide if a cache op needs to be done on every core. + * @type: Type of cache operations (R4K_HIT or R4K_INDEX). + * + * Decides whether a cache op needs to be performed on every core in the system. + * This may change depending on the @type of cache operation, as well as the set + * of online CPUs, so preemption should be disabled by the caller to prevent CPU + * hotplug from changing the result. + * + * Returns: 1 if the cache operation @type should be done on every core in + * the system. + * 0 if the cache operation @type is globalized and only needs to + * be performed on a simple CPU. + */ +static inline bool r4k_op_needs_ipi(unsigned int type) +{ + /* The MIPS Coherence Manager (CM) globalizes address-based cache ops */ + if (type == R4K_HIT && mips_cm_present()) + return false; + + /* + * Hardware doesn't globalize the required cache ops, so SMP calls may + * be needed, but only if there are foreign CPUs (non-siblings with + * separate caches). + */ + /* cpu_foreign_map[] undeclared when !CONFIG_SMP */ +#ifdef CONFIG_SMP + return !cpumask_empty(&cpu_foreign_map[0]); +#else + return false; +#endif +} + +/* * Special Variant of smp_call_function for use by cache functions: * * o No return value @@ -48,30 +93,17 @@ * primary cache. * o doesn't disable interrupts on the local CPU */ -static inline void r4k_on_each_cpu(void (*func) (void *info), void *info) +static inline void r4k_on_each_cpu(unsigned int type, + void (*func)(void *info), void *info) { preempt_disable(); - - /* - * The Coherent Manager propagates address-based cache ops to other - * cores but not index-based ops. However, r4k_on_each_cpu is used - * in both cases so there is no easy way to tell what kind of op is - * executed to the other cores. The best we can probably do is - * to restrict that call when a CM is not present because both - * CM-based SMP protocols (CMP & CPS) restrict index-based cache ops. - */ - if (!mips_cm_present()) - smp_call_function_many(&cpu_foreign_map, func, info, 1); + if (r4k_op_needs_ipi(type)) + smp_call_function_many(&cpu_foreign_map[smp_processor_id()], + func, info, 1); func(info); preempt_enable(); } -#if defined(CONFIG_MIPS_CMP) || defined(CONFIG_MIPS_CPS) -#define cpu_has_safe_index_cacheops 0 -#else -#define cpu_has_safe_index_cacheops 1 -#endif - /* * Must die. */ @@ -462,22 +494,44 @@ static inline void local_r4k___flush_cache_all(void * args) static void r4k___flush_cache_all(void) { - r4k_on_each_cpu(local_r4k___flush_cache_all, NULL); + r4k_on_each_cpu(R4K_INDEX, local_r4k___flush_cache_all, NULL); } -static inline int has_valid_asid(const struct mm_struct *mm) +/** + * has_valid_asid() - Determine if an mm already has an ASID. + * @mm: Memory map. + * @type: R4K_HIT or R4K_INDEX, type of cache op. + * + * Determines whether @mm already has an ASID on any of the CPUs which cache ops + * of type @type within an r4k_on_each_cpu() call will affect. If + * r4k_on_each_cpu() does an SMP call to a single VPE in each core, then the + * scope of the operation is confined to sibling CPUs, otherwise all online CPUs + * will need to be checked. + * + * Must be called in non-preemptive context. + * + * Returns: 1 if the CPUs affected by @type cache ops have an ASID for @mm. + * 0 otherwise. + */ +static inline int has_valid_asid(const struct mm_struct *mm, unsigned int type) { -#ifdef CONFIG_MIPS_MT_SMP - int i; + unsigned int i; + const cpumask_t *mask = cpu_present_mask; - for_each_online_cpu(i) + /* cpu_sibling_map[] undeclared when !CONFIG_SMP */ +#ifdef CONFIG_SMP + /* + * If r4k_on_each_cpu does SMP calls, it does them to a single VPE in + * each foreign core, so we only need to worry about siblings. + * Otherwise we need to worry about all present CPUs. + */ + if (r4k_op_needs_ipi(type)) + mask = &cpu_sibling_map[smp_processor_id()]; +#endif + for_each_cpu(i, mask) if (cpu_context(i, mm)) return 1; - return 0; -#else - return cpu_context(smp_processor_id(), mm); -#endif } static void r4k__flush_cache_vmap(void) @@ -490,12 +544,16 @@ static void r4k__flush_cache_vunmap(void) r4k_blast_dcache(); } +/* + * Note: flush_tlb_range() assumes flush_cache_range() sufficiently flushes + * whole caches when vma is executable. + */ static inline void local_r4k_flush_cache_range(void * args) { struct vm_area_struct *vma = args; int exec = vma->vm_flags & VM_EXEC; - if (!(has_valid_asid(vma->vm_mm))) + if (!has_valid_asid(vma->vm_mm, R4K_INDEX)) return; /* @@ -516,14 +574,14 @@ static void r4k_flush_cache_range(struct vm_area_struct *vma, int exec = vma->vm_flags & VM_EXEC; if (cpu_has_dc_aliases || exec) - r4k_on_each_cpu(local_r4k_flush_cache_range, vma); + r4k_on_each_cpu(R4K_INDEX, local_r4k_flush_cache_range, vma); } static inline void local_r4k_flush_cache_mm(void * args) { struct mm_struct *mm = args; - if (!has_valid_asid(mm)) + if (!has_valid_asid(mm, R4K_INDEX)) return; /* @@ -548,7 +606,7 @@ static void r4k_flush_cache_mm(struct mm_struct *mm) if (!cpu_has_dc_aliases) return; - r4k_on_each_cpu(local_r4k_flush_cache_mm, mm); + r4k_on_each_cpu(R4K_INDEX, local_r4k_flush_cache_mm, mm); } struct flush_cache_page_args { @@ -573,10 +631,10 @@ static inline void local_r4k_flush_cache_page(void *args) void *vaddr; /* - * If ownes no valid ASID yet, cannot possibly have gotten + * If owns no valid ASID yet, cannot possibly have gotten * this page into the cache. */ - if (!has_valid_asid(mm)) + if (!has_valid_asid(mm, R4K_HIT)) return; addr &= PAGE_MASK; @@ -643,7 +701,7 @@ static void r4k_flush_cache_page(struct vm_area_struct *vma, args.addr = addr; args.pfn = pfn; - r4k_on_each_cpu(local_r4k_flush_cache_page, &args); + r4k_on_each_cpu(R4K_HIT, local_r4k_flush_cache_page, &args); } static inline void local_r4k_flush_data_cache_page(void * addr) @@ -656,18 +714,23 @@ static void r4k_flush_data_cache_page(unsigned long addr) if (in_atomic()) local_r4k_flush_data_cache_page((void *)addr); else - r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr); + r4k_on_each_cpu(R4K_HIT, local_r4k_flush_data_cache_page, + (void *) addr); } struct flush_icache_range_args { unsigned long start; unsigned long end; + unsigned int type; }; -static inline void local_r4k_flush_icache_range(unsigned long start, unsigned long end) +static inline void __local_r4k_flush_icache_range(unsigned long start, + unsigned long end, + unsigned int type) { if (!cpu_has_ic_fills_f_dc) { - if (end - start >= dcache_size) { + if (type == R4K_INDEX || + (type & R4K_INDEX && end - start >= dcache_size)) { r4k_blast_dcache(); } else { R4600_HIT_CACHEOP_WAR_IMPL; @@ -675,7 +738,8 @@ static inline void local_r4k_flush_icache_range(unsigned long start, unsigned lo } } - if (end - start > icache_size) + if (type == R4K_INDEX || + (type & R4K_INDEX && end - start > icache_size)) r4k_blast_icache(); else { switch (boot_cpu_type()) { @@ -701,23 +765,52 @@ static inline void local_r4k_flush_icache_range(unsigned long start, unsigned lo #endif } +static inline void local_r4k_flush_icache_range(unsigned long start, + unsigned long end) +{ + __local_r4k_flush_icache_range(start, end, R4K_HIT | R4K_INDEX); +} + static inline void local_r4k_flush_icache_range_ipi(void *args) { struct flush_icache_range_args *fir_args = args; unsigned long start = fir_args->start; unsigned long end = fir_args->end; + unsigned int type = fir_args->type; - local_r4k_flush_icache_range(start, end); + __local_r4k_flush_icache_range(start, end, type); } static void r4k_flush_icache_range(unsigned long start, unsigned long end) { struct flush_icache_range_args args; + unsigned long size, cache_size; args.start = start; args.end = end; + args.type = R4K_HIT | R4K_INDEX; - r4k_on_each_cpu(local_r4k_flush_icache_range_ipi, &args); + /* + * Indexed cache ops require an SMP call. + * Consider if that can or should be avoided. + */ + preempt_disable(); + if (r4k_op_needs_ipi(R4K_INDEX) && !r4k_op_needs_ipi(R4K_HIT)) { + /* + * If address-based cache ops don't require an SMP call, then + * use them exclusively for small flushes. + */ + size = start - end; + cache_size = icache_size; + if (!cpu_has_ic_fills_f_dc) { + size *= 2; + cache_size += dcache_size; + } + if (size <= cache_size) + args.type &= ~R4K_INDEX; + } + r4k_on_each_cpu(args.type, local_r4k_flush_icache_range_ipi, &args); + preempt_enable(); instruction_hazard(); } @@ -744,7 +837,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) * subset property so we have to flush the primary caches * explicitly */ - if (cpu_has_safe_index_cacheops && size >= dcache_size) { + if (size >= dcache_size) { r4k_blast_dcache(); } else { R4600_HIT_CACHEOP_WAR_IMPL; @@ -781,7 +874,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) return; } - if (cpu_has_safe_index_cacheops && size >= dcache_size) { + if (size >= dcache_size) { r4k_blast_dcache(); } else { R4600_HIT_CACHEOP_WAR_IMPL; @@ -794,25 +887,76 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) } #endif /* CONFIG_DMA_NONCOHERENT || CONFIG_DMA_MAYBE_COHERENT */ +struct flush_cache_sigtramp_args { + struct mm_struct *mm; + struct page *page; + unsigned long addr; +}; + /* * While we're protected against bad userland addresses we don't care * very much about what happens in that case. Usually a segmentation * fault will dump the process later on anyway ... */ -static void local_r4k_flush_cache_sigtramp(void * arg) +static void local_r4k_flush_cache_sigtramp(void *args) { + struct flush_cache_sigtramp_args *fcs_args = args; + unsigned long addr = fcs_args->addr; + struct page *page = fcs_args->page; + struct mm_struct *mm = fcs_args->mm; + int map_coherent = 0; + void *vaddr; + unsigned long ic_lsize = cpu_icache_line_size(); unsigned long dc_lsize = cpu_dcache_line_size(); unsigned long sc_lsize = cpu_scache_line_size(); - unsigned long addr = (unsigned long) arg; + + /* + * If owns no valid ASID yet, cannot possibly have gotten + * this page into the cache. + */ + if (!has_valid_asid(mm, R4K_HIT)) + return; + + if (mm == current->active_mm) { + vaddr = NULL; + } else { + /* + * Use kmap_coherent or kmap_atomic to do flushes for + * another ASID than the current one. + */ + map_coherent = (cpu_has_dc_aliases && + page_mapcount(page) && + !Page_dcache_dirty(page)); + if (map_coherent) + vaddr = kmap_coherent(page, addr); + else + vaddr = kmap_atomic(page); + addr = (unsigned long)vaddr + (addr & ~PAGE_MASK); + } R4600_HIT_CACHEOP_WAR_IMPL; - if (dc_lsize) - protected_writeback_dcache_line(addr & ~(dc_lsize - 1)); - if (!cpu_icache_snoops_remote_store && scache_size) - protected_writeback_scache_line(addr & ~(sc_lsize - 1)); + if (!cpu_has_ic_fills_f_dc) { + if (dc_lsize) + vaddr ? flush_dcache_line(addr & ~(dc_lsize - 1)) + : protected_writeback_dcache_line( + addr & ~(dc_lsize - 1)); + if (!cpu_icache_snoops_remote_store && scache_size) + vaddr ? flush_scache_line(addr & ~(sc_lsize - 1)) + : protected_writeback_scache_line( + addr & ~(sc_lsize - 1)); + } if (ic_lsize) - protected_flush_icache_line(addr & ~(ic_lsize - 1)); + vaddr ? flush_icache_line(addr & ~(ic_lsize - 1)) + : protected_flush_icache_line(addr & ~(ic_lsize - 1)); + + if (vaddr) { + if (map_coherent) + kunmap_coherent(); + else + kunmap_atomic(vaddr); + } + if (MIPS4K_ICACHE_REFILL_WAR) { __asm__ __volatile__ ( ".set push\n\t" @@ -837,7 +981,23 @@ static void local_r4k_flush_cache_sigtramp(void * arg) static void r4k_flush_cache_sigtramp(unsigned long addr) { - r4k_on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr); + struct flush_cache_sigtramp_args args; + int npages; + + down_read(¤t->mm->mmap_sem); + + npages = get_user_pages_fast(addr, 1, 0, &args.page); + if (npages < 1) + goto out; + + args.mm = current->mm; + args.addr = addr; + + r4k_on_each_cpu(R4K_HIT, local_r4k_flush_cache_sigtramp, &args); + + put_page(args.page); +out: + up_read(¤t->mm->mmap_sem); } static void r4k_flush_icache_all(void) @@ -851,6 +1011,15 @@ struct flush_kernel_vmap_range_args { int size; }; +static inline void local_r4k_flush_kernel_vmap_range_index(void *args) +{ + /* + * Aliases only affect the primary caches so don't bother with + * S-caches or T-caches. + */ + r4k_blast_dcache(); +} + static inline void local_r4k_flush_kernel_vmap_range(void *args) { struct flush_kernel_vmap_range_args *vmra = args; @@ -861,12 +1030,8 @@ static inline void local_r4k_flush_kernel_vmap_range(void *args) * Aliases only affect the primary caches so don't bother with * S-caches or T-caches. */ - if (cpu_has_safe_index_cacheops && size >= dcache_size) - r4k_blast_dcache(); - else { - R4600_HIT_CACHEOP_WAR_IMPL; - blast_dcache_range(vaddr, vaddr + size); - } + R4600_HIT_CACHEOP_WAR_IMPL; + blast_dcache_range(vaddr, vaddr + size); } static void r4k_flush_kernel_vmap_range(unsigned long vaddr, int size) @@ -876,7 +1041,12 @@ static void r4k_flush_kernel_vmap_range(unsigned long vaddr, int size) args.vaddr = (unsigned long) vaddr; args.size = size; - r4k_on_each_cpu(local_r4k_flush_kernel_vmap_range, &args); + if (size >= dcache_size) + r4k_on_each_cpu(R4K_INDEX, + local_r4k_flush_kernel_vmap_range_index, NULL); + else + r4k_on_each_cpu(R4K_HIT, local_r4k_flush_kernel_vmap_range, + &args); } static inline void rm7k_erratum31(void) diff --git a/arch/mips/mm/sc-debugfs.c b/arch/mips/mm/sc-debugfs.c index 5eefe3281b24..01f1154cdb0c 100644 --- a/arch/mips/mm/sc-debugfs.c +++ b/arch/mips/mm/sc-debugfs.c @@ -73,8 +73,8 @@ static int __init sc_debugfs_init(void) file = debugfs_create_file("prefetch", S_IRUGO | S_IWUSR, dir, NULL, &sc_prefetch_fops); - if (IS_ERR(file)) - return PTR_ERR(file); + if (!file) + return -ENOMEM; return 0; } diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c index 9ac1efcfbcc7..78f900c59276 100644 --- a/arch/mips/mm/sc-rm7k.c +++ b/arch/mips/mm/sc-rm7k.c @@ -161,7 +161,7 @@ static void rm7k_tc_disable(void) local_irq_save(flags); blast_rm7k_tcache(); clear_c0_config(RM7K_CONF_TE); - local_irq_save(flags); + local_irq_restore(flags); } static void rm7k_sc_disable(void) diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index ff49b29c2d16..55ce39606cb8 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -888,7 +888,7 @@ build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, } } if (!did_vmalloc_branch) { - if (uasm_in_compat_space_p(swpd) && !uasm_rel_lo(swpd)) { + if (single_insn_swpd) { uasm_il_b(p, r, label_vmalloc_done); uasm_i_lui(p, ptr, uasm_rel_hi(swpd)); } else { diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c index cec524167822..763d3f1edb8a 100644 --- a/arch/mips/mm/uasm-mips.c +++ b/arch/mips/mm/uasm-mips.c @@ -65,7 +65,7 @@ static struct insn insn_table[] = { #ifndef CONFIG_CPU_MIPSR6 { insn_cache, M(cache_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, #else - { insn_cache, M6(cache_op, 0, 0, 0, cache6_op), RS | RT | SIMM9 }, + { insn_cache, M6(spec3_op, 0, 0, 0, cache6_op), RS | RT | SIMM9 }, #endif { insn_cfc1, M(cop1_op, cfc_op, 0, 0, 0, 0), RT | RD }, { insn_cfcmsa, M(msa_op, 0, msa_cfc_op, 0, 0, msa_elm_op), RD | RE }, diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c index 3e0282d301d6..a82970442b8a 100644 --- a/arch/mips/mm/uasm.c +++ b/arch/mips/mm/uasm.c @@ -378,11 +378,7 @@ UASM_EXPORT_SYMBOL(ISAFUNC(uasm_build_label)); int ISAFUNC(uasm_in_compat_space_p)(long addr) { /* Is this address in 32bit compat space? */ -#ifdef CONFIG_64BIT - return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L); -#else - return 1; -#endif + return addr == (int)addr; } UASM_EXPORT_SYMBOL(ISAFUNC(uasm_in_compat_space_p)); |