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-rw-r--r--arch/sparc/mm/hypersparc.S8
-rw-r--r--arch/sparc/mm/init_64.c9
-rw-r--r--arch/sparc/mm/swift.S8
-rw-r--r--arch/sparc/mm/tlb.c39
-rw-r--r--arch/sparc/mm/tsb.c57
-rw-r--r--arch/sparc/mm/tsunami.S6
-rw-r--r--arch/sparc/mm/ultra.S119
-rw-r--r--arch/sparc/mm/viking.S10
8 files changed, 196 insertions, 60 deletions
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S
index 44aad32..969f964 100644
--- a/arch/sparc/mm/hypersparc.S
+++ b/arch/sparc/mm/hypersparc.S
@@ -74,7 +74,7 @@ hypersparc_flush_cache_mm_out:
/* The things we do for performance... */
hypersparc_flush_cache_range:
- ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
#ifndef CONFIG_SMP
ld [%o0 + AOFF_mm_context], %g1
cmp %g1, -1
@@ -163,7 +163,7 @@ hypersparc_flush_cache_range_out:
*/
/* Verified, my ass... */
hypersparc_flush_cache_page:
- ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
ld [%o0 + AOFF_mm_context], %g2
#ifndef CONFIG_SMP
cmp %g2, -1
@@ -284,7 +284,7 @@ hypersparc_flush_tlb_mm_out:
sta %g5, [%g1] ASI_M_MMUREGS
hypersparc_flush_tlb_range:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
@@ -307,7 +307,7 @@ hypersparc_flush_tlb_range_out:
sta %g5, [%g1] ASI_M_MMUREGS
hypersparc_flush_tlb_page:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
andn %o1, (PAGE_SIZE - 1), %o1
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 6ff4d78..b4989f9 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1071,7 +1071,14 @@ static int __init grab_mblocks(struct mdesc_handle *md)
m->size = *val;
val = mdesc_get_property(md, node,
"address-congruence-offset", NULL);
- m->offset = *val;
+
+ /* The address-congruence-offset property is optional.
+ * Explicity zero it be identifty this.
+ */
+ if (val)
+ m->offset = *val;
+ else
+ m->offset = 0UL;
numadbg("MBLOCK[%d]: base[%llx] size[%llx] offset[%llx]\n",
count - 1, m->base, m->size, m->offset);
diff --git a/arch/sparc/mm/swift.S b/arch/sparc/mm/swift.S
index c801c39..5d2b88d 100644
--- a/arch/sparc/mm/swift.S
+++ b/arch/sparc/mm/swift.S
@@ -105,7 +105,7 @@ swift_flush_cache_mm_out:
.globl swift_flush_cache_range
swift_flush_cache_range:
- ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
sub %o2, %o1, %o2
sethi %hi(4096), %o3
cmp %o2, %o3
@@ -116,7 +116,7 @@ swift_flush_cache_range:
.globl swift_flush_cache_page
swift_flush_cache_page:
- ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
70:
ld [%o0 + AOFF_mm_context], %g2
cmp %g2, -1
@@ -219,7 +219,7 @@ swift_flush_sig_insns:
.globl swift_flush_tlb_range
.globl swift_flush_tlb_all
swift_flush_tlb_range:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
swift_flush_tlb_mm:
ld [%o0 + AOFF_mm_context], %g2
cmp %g2, -1
@@ -233,7 +233,7 @@ swift_flush_tlb_all_out:
.globl swift_flush_tlb_page
swift_flush_tlb_page:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
andn %o1, (PAGE_SIZE - 1), %o1
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index b1f279c..072f553 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -24,11 +24,17 @@ static DEFINE_PER_CPU(struct tlb_batch, tlb_batch);
void flush_tlb_pending(void)
{
struct tlb_batch *tb = &get_cpu_var(tlb_batch);
+ struct mm_struct *mm = tb->mm;
- if (tb->tlb_nr) {
- flush_tsb_user(tb);
+ if (!tb->tlb_nr)
+ goto out;
- if (CTX_VALID(tb->mm->context)) {
+ flush_tsb_user(tb);
+
+ if (CTX_VALID(mm->context)) {
+ if (tb->tlb_nr == 1) {
+ global_flush_tlb_page(mm, tb->vaddrs[0]);
+ } else {
#ifdef CONFIG_SMP
smp_flush_tlb_pending(tb->mm, tb->tlb_nr,
&tb->vaddrs[0]);
@@ -37,12 +43,30 @@ void flush_tlb_pending(void)
tb->tlb_nr, &tb->vaddrs[0]);
#endif
}
- tb->tlb_nr = 0;
}
+ tb->tlb_nr = 0;
+
+out:
put_cpu_var(tlb_batch);
}
+void arch_enter_lazy_mmu_mode(void)
+{
+ struct tlb_batch *tb = &__get_cpu_var(tlb_batch);
+
+ tb->active = 1;
+}
+
+void arch_leave_lazy_mmu_mode(void)
+{
+ struct tlb_batch *tb = &__get_cpu_var(tlb_batch);
+
+ if (tb->tlb_nr)
+ flush_tlb_pending();
+ tb->active = 0;
+}
+
void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
pte_t *ptep, pte_t orig, int fullmm)
{
@@ -90,6 +114,12 @@ no_cache_flush:
nr = 0;
}
+ if (!tb->active) {
+ flush_tsb_user_page(mm, vaddr);
+ global_flush_tlb_page(mm, vaddr);
+ goto out;
+ }
+
if (nr == 0)
tb->mm = mm;
@@ -98,5 +128,6 @@ no_cache_flush:
if (nr >= TLB_BATCH_NR)
flush_tlb_pending();
+out:
put_cpu_var(tlb_batch);
}
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index a5f51b2..cb16ff3 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -8,11 +8,10 @@
#include <linux/slab.h>
#include <asm/system.h>
#include <asm/page.h>
-#include <asm/tlbflush.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
#include <asm/pgtable.h>
+#include <asm/mmu_context.h>
#include <asm/tsb.h>
+#include <asm/tlb.h>
#include <asm/oplib.h>
extern struct tsb swapper_tsb[KERNEL_TSB_NENTRIES];
@@ -47,23 +46,27 @@ void flush_tsb_kernel_range(unsigned long start, unsigned long end)
}
}
-static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
- unsigned long tsb, unsigned long nentries)
+static void __flush_tsb_one_entry(unsigned long tsb, unsigned long v,
+ unsigned long hash_shift,
+ unsigned long nentries)
{
- unsigned long i;
+ unsigned long tag, ent, hash;
- for (i = 0; i < tb->tlb_nr; i++) {
- unsigned long v = tb->vaddrs[i];
- unsigned long tag, ent, hash;
+ v &= ~0x1UL;
+ hash = tsb_hash(v, hash_shift, nentries);
+ ent = tsb + (hash * sizeof(struct tsb));
+ tag = (v >> 22UL);
- v &= ~0x1UL;
+ tsb_flush(ent, tag);
+}
- hash = tsb_hash(v, hash_shift, nentries);
- ent = tsb + (hash * sizeof(struct tsb));
- tag = (v >> 22UL);
+static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
+ unsigned long tsb, unsigned long nentries)
+{
+ unsigned long i;
- tsb_flush(ent, tag);
- }
+ for (i = 0; i < tb->tlb_nr; i++)
+ __flush_tsb_one_entry(tsb, tb->vaddrs[i], hash_shift, nentries);
}
void flush_tsb_user(struct tlb_batch *tb)
@@ -91,6 +94,30 @@ void flush_tsb_user(struct tlb_batch *tb)
spin_unlock_irqrestore(&mm->context.lock, flags);
}
+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr)
+{
+ unsigned long nentries, base, flags;
+
+ spin_lock_irqsave(&mm->context.lock, flags);
+
+ base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
+ nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
+ if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+ base = __pa(base);
+ __flush_tsb_one_entry(base, vaddr, PAGE_SHIFT, nentries);
+
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
+ if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+ base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
+ nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
+ if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+ base = __pa(base);
+ __flush_tsb_one_entry(base, vaddr, HPAGE_SHIFT, nentries);
+ }
+#endif
+ spin_unlock_irqrestore(&mm->context.lock, flags);
+}
+
#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
#define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_8K
#define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_8K
diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S
index 4e55e8f..bf10a34 100644
--- a/arch/sparc/mm/tsunami.S
+++ b/arch/sparc/mm/tsunami.S
@@ -24,7 +24,7 @@
/* Sliiick... */
tsunami_flush_cache_page:
tsunami_flush_cache_range:
- ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
tsunami_flush_cache_mm:
ld [%o0 + AOFF_mm_context], %g2
cmp %g2, -1
@@ -46,7 +46,7 @@ tsunami_flush_sig_insns:
/* More slick stuff... */
tsunami_flush_tlb_range:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
tsunami_flush_tlb_mm:
ld [%o0 + AOFF_mm_context], %g2
cmp %g2, -1
@@ -65,7 +65,7 @@ tsunami_flush_tlb_out:
/* This one can be done in a fine grained manner... */
tsunami_flush_tlb_page:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
andn %o1, (PAGE_SIZE - 1), %o1
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S
index 874162a..dd10caa 100644
--- a/arch/sparc/mm/ultra.S
+++ b/arch/sparc/mm/ultra.S
@@ -53,6 +53,33 @@ __flush_tlb_mm: /* 18 insns */
nop
.align 32
+ .globl __flush_tlb_page
+__flush_tlb_page: /* 22 insns */
+ /* %o0 = context, %o1 = vaddr */
+ rdpr %pstate, %g7
+ andn %g7, PSTATE_IE, %g2
+ wrpr %g2, %pstate
+ mov SECONDARY_CONTEXT, %o4
+ ldxa [%o4] ASI_DMMU, %g2
+ stxa %o0, [%o4] ASI_DMMU
+ andcc %o1, 1, %g0
+ andn %o1, 1, %o3
+ be,pn %icc, 1f
+ or %o3, 0x10, %o3
+ stxa %g0, [%o3] ASI_IMMU_DEMAP
+1: stxa %g0, [%o3] ASI_DMMU_DEMAP
+ membar #Sync
+ stxa %g2, [%o4] ASI_DMMU
+ sethi %hi(KERNBASE), %o4
+ flush %o4
+ retl
+ wrpr %g7, 0x0, %pstate
+ nop
+ nop
+ nop
+ nop
+
+ .align 32
.globl __flush_tlb_pending
__flush_tlb_pending: /* 26 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
@@ -203,6 +230,31 @@ __cheetah_flush_tlb_mm: /* 19 insns */
retl
wrpr %g7, 0x0, %pstate
+__cheetah_flush_tlb_page: /* 22 insns */
+ /* %o0 = context, %o1 = vaddr */
+ rdpr %pstate, %g7
+ andn %g7, PSTATE_IE, %g2
+ wrpr %g2, 0x0, %pstate
+ wrpr %g0, 1, %tl
+ mov PRIMARY_CONTEXT, %o4
+ ldxa [%o4] ASI_DMMU, %g2
+ srlx %g2, CTX_PGSZ1_NUC_SHIFT, %o3
+ sllx %o3, CTX_PGSZ1_NUC_SHIFT, %o3
+ or %o0, %o3, %o0 /* Preserve nucleus page size fields */
+ stxa %o0, [%o4] ASI_DMMU
+ andcc %o1, 1, %g0
+ be,pn %icc, 1f
+ andn %o1, 1, %o3
+ stxa %g0, [%o3] ASI_IMMU_DEMAP
+1: stxa %g0, [%o3] ASI_DMMU_DEMAP
+ membar #Sync
+ stxa %g2, [%o4] ASI_DMMU
+ sethi %hi(KERNBASE), %o4
+ flush %o4
+ wrpr %g0, 0, %tl
+ retl
+ wrpr %g7, 0x0, %pstate
+
__cheetah_flush_tlb_pending: /* 27 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
rdpr %pstate, %g7
@@ -269,6 +321,20 @@ __hypervisor_flush_tlb_mm: /* 10 insns */
retl
nop
+__hypervisor_flush_tlb_page: /* 11 insns */
+ /* %o0 = context, %o1 = vaddr */
+ mov %o0, %g2
+ mov %o1, %o0 /* ARG0: vaddr + IMMU-bit */
+ mov %g2, %o1 /* ARG1: mmu context */
+ mov HV_MMU_ALL, %o2 /* ARG2: flags */
+ srlx %o0, PAGE_SHIFT, %o0
+ sllx %o0, PAGE_SHIFT, %o0
+ ta HV_MMU_UNMAP_ADDR_TRAP
+ brnz,pn %o0, __hypervisor_tlb_tl0_error
+ mov HV_MMU_UNMAP_ADDR_TRAP, %o1
+ retl
+ nop
+
__hypervisor_flush_tlb_pending: /* 16 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
sllx %o1, 3, %g1
@@ -339,6 +405,13 @@ cheetah_patch_cachetlbops:
call tlb_patch_one
mov 19, %o2
+ sethi %hi(__flush_tlb_page), %o0
+ or %o0, %lo(__flush_tlb_page), %o0
+ sethi %hi(__cheetah_flush_tlb_page), %o1
+ or %o1, %lo(__cheetah_flush_tlb_page), %o1
+ call tlb_patch_one
+ mov 22, %o2
+
sethi %hi(__flush_tlb_pending), %o0
or %o0, %lo(__flush_tlb_pending), %o0
sethi %hi(__cheetah_flush_tlb_pending), %o1
@@ -397,10 +470,9 @@ xcall_flush_tlb_mm: /* 21 insns */
nop
nop
- .globl xcall_flush_tlb_pending
-xcall_flush_tlb_pending: /* 21 insns */
- /* %g5=context, %g1=nr, %g7=vaddrs[] */
- sllx %g1, 3, %g1
+ .globl xcall_flush_tlb_page
+xcall_flush_tlb_page: /* 17 insns */
+ /* %g5=context, %g1=vaddr */
mov PRIMARY_CONTEXT, %g4
ldxa [%g4] ASI_DMMU, %g2
srlx %g2, CTX_PGSZ1_NUC_SHIFT, %g4
@@ -408,20 +480,16 @@ xcall_flush_tlb_pending: /* 21 insns */
or %g5, %g4, %g5
mov PRIMARY_CONTEXT, %g4
stxa %g5, [%g4] ASI_DMMU
-1: sub %g1, (1 << 3), %g1
- ldx [%g7 + %g1], %g5
- andcc %g5, 0x1, %g0
+ andcc %g1, 0x1, %g0
be,pn %icc, 2f
-
- andn %g5, 0x1, %g5
+ andn %g1, 0x1, %g5
stxa %g0, [%g5] ASI_IMMU_DEMAP
2: stxa %g0, [%g5] ASI_DMMU_DEMAP
membar #Sync
- brnz,pt %g1, 1b
- nop
stxa %g2, [%g4] ASI_DMMU
retry
nop
+ nop
.globl xcall_flush_tlb_kernel_range
xcall_flush_tlb_kernel_range: /* 25 insns */
@@ -596,15 +664,13 @@ __hypervisor_xcall_flush_tlb_mm: /* 21 insns */
membar #Sync
retry
- .globl __hypervisor_xcall_flush_tlb_pending
-__hypervisor_xcall_flush_tlb_pending: /* 21 insns */
- /* %g5=ctx, %g1=nr, %g7=vaddrs[], %g2,%g3,%g4,g6=scratch */
- sllx %g1, 3, %g1
+ .globl __hypervisor_xcall_flush_tlb_page
+__hypervisor_xcall_flush_tlb_page: /* 17 insns */
+ /* %g5=ctx, %g1=vaddr */
mov %o0, %g2
mov %o1, %g3
mov %o2, %g4
-1: sub %g1, (1 << 3), %g1
- ldx [%g7 + %g1], %o0 /* ARG0: virtual address */
+ mov %g1, %o0 /* ARG0: virtual address */
mov %g5, %o1 /* ARG1: mmu context */
mov HV_MMU_ALL, %o2 /* ARG2: flags */
srlx %o0, PAGE_SHIFT, %o0
@@ -613,8 +679,6 @@ __hypervisor_xcall_flush_tlb_pending: /* 21 insns */
mov HV_MMU_UNMAP_ADDR_TRAP, %g6
brnz,a,pn %o0, __hypervisor_tlb_xcall_error
mov %o0, %g5
- brnz,pt %g1, 1b
- nop
mov %g2, %o0
mov %g3, %o1
mov %g4, %o2
@@ -697,6 +761,13 @@ hypervisor_patch_cachetlbops:
call tlb_patch_one
mov 10, %o2
+ sethi %hi(__flush_tlb_page), %o0
+ or %o0, %lo(__flush_tlb_page), %o0
+ sethi %hi(__hypervisor_flush_tlb_page), %o1
+ or %o1, %lo(__hypervisor_flush_tlb_page), %o1
+ call tlb_patch_one
+ mov 11, %o2
+
sethi %hi(__flush_tlb_pending), %o0
or %o0, %lo(__flush_tlb_pending), %o0
sethi %hi(__hypervisor_flush_tlb_pending), %o1
@@ -728,12 +799,12 @@ hypervisor_patch_cachetlbops:
call tlb_patch_one
mov 21, %o2
- sethi %hi(xcall_flush_tlb_pending), %o0
- or %o0, %lo(xcall_flush_tlb_pending), %o0
- sethi %hi(__hypervisor_xcall_flush_tlb_pending), %o1
- or %o1, %lo(__hypervisor_xcall_flush_tlb_pending), %o1
+ sethi %hi(xcall_flush_tlb_page), %o0
+ or %o0, %lo(xcall_flush_tlb_page), %o0
+ sethi %hi(__hypervisor_xcall_flush_tlb_page), %o1
+ or %o1, %lo(__hypervisor_xcall_flush_tlb_page), %o1
call tlb_patch_one
- mov 21, %o2
+ mov 17, %o2
sethi %hi(xcall_flush_tlb_kernel_range), %o0
or %o0, %lo(xcall_flush_tlb_kernel_range), %o0
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S
index 6dfcc13..a516372 100644
--- a/arch/sparc/mm/viking.S
+++ b/arch/sparc/mm/viking.S
@@ -109,7 +109,7 @@ viking_mxcc_flush_page:
viking_flush_cache_page:
viking_flush_cache_range:
#ifndef CONFIG_SMP
- ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
#endif
viking_flush_cache_mm:
#ifndef CONFIG_SMP
@@ -149,7 +149,7 @@ viking_flush_tlb_mm:
#endif
viking_flush_tlb_range:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
@@ -174,7 +174,7 @@ viking_flush_tlb_range:
#endif
viking_flush_tlb_page:
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
@@ -240,7 +240,7 @@ sun4dsmp_flush_tlb_range:
tst %g5
bne 3f
mov SRMMU_CTX_REG, %g1
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4
@@ -266,7 +266,7 @@ sun4dsmp_flush_tlb_page:
tst %g5
bne 2f
mov SRMMU_CTX_REG, %g1
- ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
+ ld [%o0 + VMA_VM_MM], %o0
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
and %o1, PAGE_MASK, %o1
generated by cgit v1.1 at 2025-01-09 11:43:55 +0000