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Subject[PATCH] x86: complete move ACPI from mpparse.c
Date
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
---
arch/x86/kernel/acpi/boot.c | 304 +++++++++++++++++++++++++++++++++++++++++++
arch/x86/kernel/mpparse.c | 299 ------------------------------------------
2 files changed, 305 insertions(+), 298 deletions(-)

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 06bfc49..04075dc 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -844,6 +844,310 @@ static int __init acpi_parse_madt_lapic_entries(void)
#endif /* CONFIG_X86_LOCAL_APIC */

#ifdef CONFIG_X86_IO_APIC
+#define MP_ISA_BUS 0
+
+#if defined(CONFIG_X86_ES7000) || defined(CONFIG_X86_GENERICARCH)
+extern int es7000_plat;
+#endif
+
+static struct mp_ioapic_routing mp_ioapic_routing[MAX_IO_APICS];
+
+static int mp_find_ioapic(int gsi)
+{
+ int i = 0;
+
+ /* Find the IOAPIC that manages this GSI. */
+ for (i = 0; i < nr_ioapics; i++) {
+ if ((gsi >= mp_ioapic_routing[i].gsi_base)
+ && (gsi <= mp_ioapic_routing[i].gsi_end))
+ return i;
+ }
+
+ printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi);
+ return -1;
+}
+
+static u8 __init uniq_ioapic_id(u8 id)
+{
+#ifdef CONFIG_X86_32
+ if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
+ !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
+ return io_apic_get_unique_id(nr_ioapics, id);
+ else
+ return id;
+#else
+ int i;
+ DECLARE_BITMAP(used, 256);
+ bitmap_zero(used, 256);
+ for (i = 0; i < nr_ioapics; i++) {
+ struct mpc_config_ioapic *ia = &mp_ioapics[i];
+ __set_bit(ia->mpc_apicid, used);
+ }
+ if (!test_bit(id, used))
+ return id;
+ return find_first_zero_bit(used, 256);
+#endif
+}
+
+static int bad_ioapic(unsigned long address)
+{
+ if (nr_ioapics >= MAX_IO_APICS) {
+ printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
+ "(found %d)\n", MAX_IO_APICS, nr_ioapics);
+ panic("Recompile kernel with bigger MAX_IO_APICS!\n");
+ }
+ if (!address) {
+ printk(KERN_ERR "WARNING: Bogus (zero) I/O APIC address"
+ " found in table, skipping!\n");
+ return 1;
+ }
+ return 0;
+}
+
+void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
+{
+ int idx = 0;
+
+ if (bad_ioapic(address))
+ return;
+
+ idx = nr_ioapics;
+
+ mp_ioapics[idx].mpc_type = MP_IOAPIC;
+ mp_ioapics[idx].mpc_flags = MPC_APIC_USABLE;
+ mp_ioapics[idx].mpc_apicaddr = address;
+
+ set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
+ mp_ioapics[idx].mpc_apicid = uniq_ioapic_id(id);
+#ifdef CONFIG_X86_32
+ mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx);
+#else
+ mp_ioapics[idx].mpc_apicver = 0;
+#endif
+ /*
+ * Build basic GSI lookup table to facilitate gsi->io_apic lookups
+ * and to prevent reprogramming of IOAPIC pins (PCI GSIs).
+ */
+ mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].mpc_apicid;
+ mp_ioapic_routing[idx].gsi_base = gsi_base;
+ mp_ioapic_routing[idx].gsi_end = gsi_base +
+ io_apic_get_redir_entries(idx);
+
+ printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, "
+ "GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid,
+ mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr,
+ mp_ioapic_routing[idx].gsi_base, mp_ioapic_routing[idx].gsi_end);
+
+ nr_ioapics++;
+}
+
+void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
+{
+ int ioapic = -1;
+ int pin = -1;
+
+ /*
+ * Convert 'gsi' to 'ioapic.pin'.
+ */
+ ioapic = mp_find_ioapic(gsi);
+ if (ioapic < 0)
+ return;
+ pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
+
+ /*
+ * TBD: This check is for faulty timer entries, where the override
+ * erroneously sets the trigger to level, resulting in a HUGE
+ * increase of timer interrupts!
+ */
+ if ((bus_irq == 0) && (trigger == 3))
+ trigger = 1;
+
+ mp_irqs[mp_irq_entries].mpc_type = MP_INTSRC;
+ mp_irqs[mp_irq_entries].mpc_irqtype = mp_INT;
+ mp_irqs[mp_irq_entries].mpc_irqflag = (trigger << 2) | polarity;
+ mp_irqs[mp_irq_entries].mpc_srcbus = MP_ISA_BUS;
+ mp_irqs[mp_irq_entries].mpc_srcbusirq = bus_irq; /* IRQ */
+ mp_irqs[mp_irq_entries].mpc_dstapic =
+ mp_ioapics[ioapic].mpc_apicid; /* APIC ID */
+ mp_irqs[mp_irq_entries].mpc_dstirq = pin; /* INTIN# */
+
+ if (++mp_irq_entries == MAX_IRQ_SOURCES)
+ panic("Max # of irq sources exceeded!!\n");
+
+}
+
+void __init mp_config_acpi_legacy_irqs(void)
+{
+ int i = 0;
+ int ioapic = -1;
+
+#if defined (CONFIG_MCA) || defined (CONFIG_EISA)
+ /*
+ * Fabricate the legacy ISA bus (bus #31).
+ */
+ mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA;
+#endif
+ set_bit(MP_ISA_BUS, mp_bus_not_pci);
+ Dprintk("Bus #%d is ISA\n", MP_ISA_BUS);
+
+#if defined(CONFIG_X86_ES7000) || defined(CONFIG_X86_GENERICARCH)
+ /*
+ * Older generations of ES7000 have no legacy identity mappings
+ */
+ if (es7000_plat == 1)
+ return;
+#endif
+
+ /*
+ * Locate the IOAPIC that manages the ISA IRQs (0-15).
+ */
+ ioapic = mp_find_ioapic(0);
+ if (ioapic < 0)
+ return;
+
+ mp_irqs[mp_irq_entries].mpc_type = MP_INTSRC;
+ mp_irqs[mp_irq_entries].mpc_irqflag = 0; /* Conforming */
+ mp_irqs[mp_irq_entries].mpc_srcbus = MP_ISA_BUS;
+#ifdef CONFIG_X86_IO_APIC
+ mp_irqs[mp_irq_entries].mpc_dstapic = mp_ioapics[ioapic].mpc_apicid;
+#endif
+ /*
+ * Use the default configuration for the IRQs 0-15. Unless
+ * overridden by (MADT) interrupt source override entries.
+ */
+ for (i = 0; i < 16; i++) {
+ int idx;
+
+ for (idx = 0; idx < mp_irq_entries; idx++) {
+ struct mpc_config_intsrc *irq = mp_irqs + idx;
+
+ /* Do we already have a mapping for this ISA IRQ? */
+ if (irq->mpc_srcbus == MP_ISA_BUS
+ && irq->mpc_srcbusirq == i)
+ break;
+
+ /* Do we already have a mapping for this IOAPIC pin */
+ if ((irq->mpc_dstapic ==
+ mp_irqs[mp_irq_entries].mpc_dstapic) &&
+ (irq->mpc_dstirq == i))
+ break;
+ }
+
+ if (idx != mp_irq_entries) {
+ printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i);
+ continue; /* IRQ already used */
+ }
+
+ mp_irqs[mp_irq_entries].mpc_irqtype = mp_INT;
+ mp_irqs[mp_irq_entries].mpc_srcbusirq = i; /* Identity mapped */
+ mp_irqs[mp_irq_entries].mpc_dstirq = i;
+
+ if (++mp_irq_entries == MAX_IRQ_SOURCES)
+ panic("Max # of irq sources exceeded!!\n");
+ }
+}
+
+int mp_register_gsi(u32 gsi, int triggering, int polarity)
+{
+ int ioapic;
+ int ioapic_pin;
+#ifdef CONFIG_X86_32
+#define MAX_GSI_NUM 4096
+#define IRQ_COMPRESSION_START 64
+
+ static int pci_irq = IRQ_COMPRESSION_START;
+ /*
+ * Mapping between Global System Interrupts, which
+ * represent all possible interrupts, and IRQs
+ * assigned to actual devices.
+ */
+ static int gsi_to_irq[MAX_GSI_NUM];
+#else
+
+ if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
+ return gsi;
+#endif
+
+ /* Don't set up the ACPI SCI because it's already set up */
+ if (acpi_gbl_FADT.sci_interrupt == gsi)
+ return gsi;
+
+ ioapic = mp_find_ioapic(gsi);
+ if (ioapic < 0) {
+ printk(KERN_WARNING "No IOAPIC for GSI %u\n", gsi);
+ return gsi;
+ }
+
+ ioapic_pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
+
+#ifdef CONFIG_X86_32
+ if (ioapic_renumber_irq)
+ gsi = ioapic_renumber_irq(ioapic, gsi);
+#endif
+
+ /*
+ * Avoid pin reprogramming. PRTs typically include entries
+ * with redundant pin->gsi mappings (but unique PCI devices);
+ * we only program the IOAPIC on the first.
+ */
+ if (ioapic_pin > MP_MAX_IOAPIC_PIN) {
+ printk(KERN_ERR "Invalid reference to IOAPIC pin "
+ "%d-%d\n", mp_ioapic_routing[ioapic].apic_id,
+ ioapic_pin);
+ return gsi;
+ }
+ if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) {
+ Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n",
+ mp_ioapic_routing[ioapic].apic_id, ioapic_pin);
+#ifdef CONFIG_X86_32
+ return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]);
+#else
+ return gsi;
+#endif
+ }
+
+ set_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed);
+#ifdef CONFIG_X86_32
+ /*
+ * For GSI >= 64, use IRQ compression
+ */
+ if ((gsi >= IRQ_COMPRESSION_START)
+ && (triggering == ACPI_LEVEL_SENSITIVE)) {
+ /*
+ * For PCI devices assign IRQs in order, avoiding gaps
+ * due to unused I/O APIC pins.
+ */
+ int irq = gsi;
+ if (gsi < MAX_GSI_NUM) {
+ /*
+ * Retain the VIA chipset work-around (gsi > 15), but
+ * avoid a problem where the 8254 timer (IRQ0) is setup
+ * via an override (so it's not on pin 0 of the ioapic),
+ * and at the same time, the pin 0 interrupt is a PCI
+ * type. The gsi > 15 test could cause these two pins
+ * to be shared as IRQ0, and they are not shareable.
+ * So test for this condition, and if necessary, avoid
+ * the pin collision.
+ */
+ gsi = pci_irq++;
+ /*
+ * Don't assign IRQ used by ACPI SCI
+ */
+ if (gsi == acpi_gbl_FADT.sci_interrupt)
+ gsi = pci_irq++;
+ gsi_to_irq[irq] = gsi;
+ } else {
+ printk(KERN_ERR "GSI %u is too high\n", gsi);
+ return gsi;
+ }
+ }
+#endif
+ io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
+ triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
+ polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
+ return gsi;
+}
+
/*
* Parse IOAPIC related entries in MADT
* returns 0 on success, < 0 on error
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index ff13423..d05b70c 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -1,5 +1,5 @@
/*
-2 * Intel Multiprocessor Specification 1.1 and 1.4
+ * Intel Multiprocessor Specification 1.1 and 1.4
* compliant MP-table parsing routines.
*
* (c) 1995 Alan Cox, Building #3 <alan@redhat.com>
@@ -788,300 +788,3 @@ void __init find_smp_config(void)
{
__find_smp_config(1);
}
-
-/* --------------------------------------------------------------------------
- ACPI-based MP Configuration
- -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI
-
-#ifdef CONFIG_X86_IO_APIC
-
-#if defined(CONFIG_X86_ES7000) || defined(CONFIG_X86_GENERICARCH)
-extern int es7000_plat;
-#endif
-
-#define MP_ISA_BUS 0
-
-static struct mp_ioapic_routing mp_ioapic_routing[MAX_IO_APICS];
-
-static int mp_find_ioapic(int gsi)
-{
- int i = 0;
-
- /* Find the IOAPIC that manages this GSI. */
- for (i = 0; i < nr_ioapics; i++) {
- if ((gsi >= mp_ioapic_routing[i].gsi_base)
- && (gsi <= mp_ioapic_routing[i].gsi_end))
- return i;
- }
-
- printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi);
- return -1;
-}
-
-static u8 __init uniq_ioapic_id(u8 id)
-{
-#ifdef CONFIG_X86_32
- if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
- !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
- return io_apic_get_unique_id(nr_ioapics, id);
- else
- return id;
-#else
- int i;
- DECLARE_BITMAP(used, 256);
- bitmap_zero(used, 256);
- for (i = 0; i < nr_ioapics; i++) {
- struct mpc_config_ioapic *ia = &mp_ioapics[i];
- __set_bit(ia->mpc_apicid, used);
- }
- if (!test_bit(id, used))
- return id;
- return find_first_zero_bit(used, 256);
-#endif
-}
-
-void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
-{
- int idx = 0;
-
- if (bad_ioapic(address))
- return;
-
- idx = nr_ioapics;
-
- mp_ioapics[idx].mpc_type = MP_IOAPIC;
- mp_ioapics[idx].mpc_flags = MPC_APIC_USABLE;
- mp_ioapics[idx].mpc_apicaddr = address;
-
- set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
- mp_ioapics[idx].mpc_apicid = uniq_ioapic_id(id);
-#ifdef CONFIG_X86_32
- mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx);
-#else
- mp_ioapics[idx].mpc_apicver = 0;
-#endif
- /*
- * Build basic GSI lookup table to facilitate gsi->io_apic lookups
- * and to prevent reprogramming of IOAPIC pins (PCI GSIs).
- */
- mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].mpc_apicid;
- mp_ioapic_routing[idx].gsi_base = gsi_base;
- mp_ioapic_routing[idx].gsi_end = gsi_base +
- io_apic_get_redir_entries(idx);
-
- printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, "
- "GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid,
- mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr,
- mp_ioapic_routing[idx].gsi_base, mp_ioapic_routing[idx].gsi_end);
-
- nr_ioapics++;
-}
-
-void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
-{
- struct mpc_config_intsrc intsrc;
- int ioapic = -1;
- int pin = -1;
-
- /*
- * Convert 'gsi' to 'ioapic.pin'.
- */
- ioapic = mp_find_ioapic(gsi);
- if (ioapic < 0)
- return;
- pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
-
- /*
- * TBD: This check is for faulty timer entries, where the override
- * erroneously sets the trigger to level, resulting in a HUGE
- * increase of timer interrupts!
- */
- if ((bus_irq == 0) && (trigger == 3))
- trigger = 1;
-
- intsrc.mpc_type = MP_INTSRC;
- intsrc.mpc_irqtype = mp_INT;
- intsrc.mpc_irqflag = (trigger << 2) | polarity;
- intsrc.mpc_srcbus = MP_ISA_BUS;
- intsrc.mpc_srcbusirq = bus_irq; /* IRQ */
- intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid; /* APIC ID */
- intsrc.mpc_dstirq = pin; /* INTIN# */
-
- MP_intsrc_info(&intsrc);
-}
-
-void __init mp_config_acpi_legacy_irqs(void)
-{
- struct mpc_config_intsrc intsrc;
- int i = 0;
- int ioapic = -1;
-
-#if defined (CONFIG_MCA) || defined (CONFIG_EISA)
- /*
- * Fabricate the legacy ISA bus (bus #31).
- */
- mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA;
-#endif
- set_bit(MP_ISA_BUS, mp_bus_not_pci);
- Dprintk("Bus #%d is ISA\n", MP_ISA_BUS);
-
-#if defined(CONFIG_X86_ES7000) || defined(CONFIG_X86_GENERICARCH)
- /*
- * Older generations of ES7000 have no legacy identity mappings
- */
- if (es7000_plat == 1)
- return;
-#endif
-
- /*
- * Locate the IOAPIC that manages the ISA IRQs (0-15).
- */
- ioapic = mp_find_ioapic(0);
- if (ioapic < 0)
- return;
-
- intsrc.mpc_type = MP_INTSRC;
- intsrc.mpc_irqflag = 0; /* Conforming */
- intsrc.mpc_srcbus = MP_ISA_BUS;
-#ifdef CONFIG_X86_IO_APIC
- intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid;
-#endif
- /*
- * Use the default configuration for the IRQs 0-15. Unless
- * overridden by (MADT) interrupt source override entries.
- */
- for (i = 0; i < 16; i++) {
- int idx;
-
- for (idx = 0; idx < mp_irq_entries; idx++) {
- struct mpc_config_intsrc *irq = mp_irqs + idx;
-
- /* Do we already have a mapping for this ISA IRQ? */
- if (irq->mpc_srcbus == MP_ISA_BUS
- && irq->mpc_srcbusirq == i)
- break;
-
- /* Do we already have a mapping for this IOAPIC pin */
- if ((irq->mpc_dstapic == intsrc.mpc_dstapic) &&
- (irq->mpc_dstirq == i))
- break;
- }
-
- if (idx != mp_irq_entries) {
- printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i);
- continue; /* IRQ already used */
- }
-
- intsrc.mpc_irqtype = mp_INT;
- intsrc.mpc_srcbusirq = i; /* Identity mapped */
- intsrc.mpc_dstirq = i;
-
- MP_intsrc_info(&intsrc);
- }
-}
-
-int mp_register_gsi(u32 gsi, int triggering, int polarity)
-{
- int ioapic;
- int ioapic_pin;
-#ifdef CONFIG_X86_32
-#define MAX_GSI_NUM 4096
-#define IRQ_COMPRESSION_START 64
-
- static int pci_irq = IRQ_COMPRESSION_START;
- /*
- * Mapping between Global System Interrupts, which
- * represent all possible interrupts, and IRQs
- * assigned to actual devices.
- */
- static int gsi_to_irq[MAX_GSI_NUM];
-#else
-
- if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
- return gsi;
-#endif
-
- /* Don't set up the ACPI SCI because it's already set up */
- if (acpi_gbl_FADT.sci_interrupt == gsi)
- return gsi;
-
- ioapic = mp_find_ioapic(gsi);
- if (ioapic < 0) {
- printk(KERN_WARNING "No IOAPIC for GSI %u\n", gsi);
- return gsi;
- }
-
- ioapic_pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
-
-#ifdef CONFIG_X86_32
- if (ioapic_renumber_irq)
- gsi = ioapic_renumber_irq(ioapic, gsi);
-#endif
-
- /*
- * Avoid pin reprogramming. PRTs typically include entries
- * with redundant pin->gsi mappings (but unique PCI devices);
- * we only program the IOAPIC on the first.
- */
- if (ioapic_pin > MP_MAX_IOAPIC_PIN) {
- printk(KERN_ERR "Invalid reference to IOAPIC pin "
- "%d-%d\n", mp_ioapic_routing[ioapic].apic_id,
- ioapic_pin);
- return gsi;
- }
- if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) {
- Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n",
- mp_ioapic_routing[ioapic].apic_id, ioapic_pin);
-#ifdef CONFIG_X86_32
- return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]);
-#else
- return gsi;
-#endif
- }
-
- set_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed);
-#ifdef CONFIG_X86_32
- /*
- * For GSI >= 64, use IRQ compression
- */
- if ((gsi >= IRQ_COMPRESSION_START)
- && (triggering == ACPI_LEVEL_SENSITIVE)) {
- /*
- * For PCI devices assign IRQs in order, avoiding gaps
- * due to unused I/O APIC pins.
- */
- int irq = gsi;
- if (gsi < MAX_GSI_NUM) {
- /*
- * Retain the VIA chipset work-around (gsi > 15), but
- * avoid a problem where the 8254 timer (IRQ0) is setup
- * via an override (so it's not on pin 0 of the ioapic),
- * and at the same time, the pin 0 interrupt is a PCI
- * type. The gsi > 15 test could cause these two pins
- * to be shared as IRQ0, and they are not shareable.
- * So test for this condition, and if necessary, avoid
- * the pin collision.
- */
- gsi = pci_irq++;
- /*
- * Don't assign IRQ used by ACPI SCI
- */
- if (gsi == acpi_gbl_FADT.sci_interrupt)
- gsi = pci_irq++;
- gsi_to_irq[irq] = gsi;
- } else {
- printk(KERN_ERR "GSI %u is too high\n", gsi);
- return gsi;
- }
- }
-#endif
- io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
- triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
- polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
- return gsi;
-}
-
-#endif /* CONFIG_X86_IO_APIC */
-#endif /* CONFIG_ACPI */


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