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freebsd-dev/sys/contrib/octeon-sdk/cvmx-l2c.h
Juli Mallett dc4ee6ca91 Merge the Cavium Octeon SDK 2.3.0 Simple Executive code and update FreeBSD to 
make use of it where possible.

This primarily brings in support for newer hardware, and FreeBSD is not yet
able to support the abundance of IRQs on new hardware and many features in the
Ethernet driver.

Because of the changes to IRQs in the Simple Executive, we have to maintain our
own list of Octeon IRQs now, which probably can be pared-down and be specific
to the CIU interrupt unit soon, and when other interrupt mechanisms are added
they can maintain their own definitions.

Remove unmasking of interrupts from within the UART device now that the
function used is no longer present in the Simple Executive.  The unmasking
seems to have been gratuitous as this is more properly handled by the buses
above the UART device, and seems to work on that basis.
2012-03-11 06:17:49 +00:00

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/***********************license start***************
* Copyright (c) 2003-2011 Cavium, Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* Interface to the Level 2 Cache (L2C) control, measurement, and debugging
* facilities.
*
* <hr>$Revision: 70030 $<hr>
*
*/
#ifndef __CVMX_L2C_H__
#define __CVMX_L2C_H__
#define CVMX_L2C_IDX_ADDR_SHIFT 7 /* based on 128 byte cache line size */
#define CVMX_L2C_IDX_MASK (cvmx_l2c_get_num_sets() - 1)
/* Defines for index aliasing computations */
#define CVMX_L2C_TAG_ADDR_ALIAS_SHIFT (CVMX_L2C_IDX_ADDR_SHIFT + cvmx_l2c_get_set_bits())
#define CVMX_L2C_ALIAS_MASK (CVMX_L2C_IDX_MASK << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT)
#define CVMX_L2C_MEMBANK_SELECT_SIZE 4096
/* Defines for Virtualizations, valid only from Octeon II onwards. */
#define CVMX_L2C_VRT_MAX_VIRTID_ALLOWED ((OCTEON_IS_MODEL(OCTEON_CN6XXX) || OCTEON_IS_MODEL(OCTEON_CNF7XXX)) ? 64 : 0)
#define CVMX_L2C_MAX_MEMSZ_ALLOWED ((OCTEON_IS_MODEL(OCTEON_CN6XXX) || OCTEON_IS_MODEL(OCTEON_CNF7XXX)) ? 32 : 0)
/*------------*/
/* TYPEDEFS */
/*------------*/
union cvmx_l2c_tag {
uint64_t u64;
#ifdef __BIG_ENDIAN_BITFIELD
struct {
uint64_t reserved:28;
uint64_t V:1; /* Line valid */
uint64_t D:1; /* Line dirty */
uint64_t L:1; /* Line locked */
uint64_t U:1; /* Use, LRU eviction */
uint64_t addr:32; /* Phys mem (not all bits valid) */
} s;
#else
struct {
uint64_t addr:32; /* Phys mem (not all bits valid) */
uint64_t U:1; /* Use, LRU eviction */
uint64_t L:1; /* Line locked */
uint64_t D:1; /* Line dirty */
uint64_t V:1; /* Line valid */
uint64_t reserved:28;
} s;
#endif
};
typedef union cvmx_l2c_tag cvmx_l2c_tag_t;
/* Maximium number of TADs */
#define CVMX_L2C_MAX_TADS 4
/* Maximium number of L2C performance counters */
#define CVMX_L2C_MAX_PCNT 4
/* Number of L2C Tag-and-data sections (TADs) that are connected to LMC. */
#define CVMX_L2C_TADS ((OCTEON_IS_MODEL(OCTEON_CN68XX)) ? 4 : 1)
/* Number of L2C IOBs connected to LMC. */
#define CVMX_L2C_IOBS ((OCTEON_IS_MODEL(OCTEON_CN68XX)) ? 2 : 1)
/* L2C Performance Counter events. */
enum cvmx_l2c_event {
CVMX_L2C_EVENT_CYCLES = 0, /**< Cycles */
CVMX_L2C_EVENT_INSTRUCTION_MISS = 1, /**< L2 Instruction Miss */
CVMX_L2C_EVENT_INSTRUCTION_HIT = 2, /**< L2 Instruction Hit */
CVMX_L2C_EVENT_DATA_MISS = 3, /**< L2 Data Miss */
CVMX_L2C_EVENT_DATA_HIT = 4, /**< L2 Data Hit */
CVMX_L2C_EVENT_MISS = 5, /**< L2 Miss (I/D) */
CVMX_L2C_EVENT_HIT = 6, /**< L2 Hit (I/D) */
CVMX_L2C_EVENT_VICTIM_HIT = 7, /**< L2 Victim Buffer Hit (Retry Probe) */
CVMX_L2C_EVENT_INDEX_CONFLICT = 8, /**< LFB-NQ Index Conflict */
CVMX_L2C_EVENT_TAG_PROBE = 9, /**< L2 Tag Probe (issued - could be VB-Retried) */
CVMX_L2C_EVENT_TAG_UPDATE = 10, /**< L2 Tag Update (completed). Note: Some CMD types do not update */
CVMX_L2C_EVENT_TAG_COMPLETE = 11, /**< L2 Tag Probe Completed (beyond VB-RTY window) */
CVMX_L2C_EVENT_TAG_DIRTY = 12, /**< L2 Tag Dirty Victim */
CVMX_L2C_EVENT_DATA_STORE_NOP = 13, /**< L2 Data Store NOP */
CVMX_L2C_EVENT_DATA_STORE_READ = 14, /**< L2 Data Store READ */
CVMX_L2C_EVENT_DATA_STORE_WRITE = 15, /**< L2 Data Store WRITE */
CVMX_L2C_EVENT_FILL_DATA_VALID = 16, /**< Memory Fill Data valid */
CVMX_L2C_EVENT_WRITE_REQUEST = 17, /**< Memory Write Request */
CVMX_L2C_EVENT_READ_REQUEST = 18, /**< Memory Read Request */
CVMX_L2C_EVENT_WRITE_DATA_VALID = 19, /**< Memory Write Data valid */
CVMX_L2C_EVENT_XMC_NOP = 20, /**< XMC NOP */
CVMX_L2C_EVENT_XMC_LDT = 21, /**< XMC LDT */
CVMX_L2C_EVENT_XMC_LDI = 22, /**< XMC LDI */
CVMX_L2C_EVENT_XMC_LDD = 23, /**< XMC LDD */
CVMX_L2C_EVENT_XMC_STF = 24, /**< XMC STF */
CVMX_L2C_EVENT_XMC_STT = 25, /**< XMC STT */
CVMX_L2C_EVENT_XMC_STP = 26, /**< XMC STP */
CVMX_L2C_EVENT_XMC_STC = 27, /**< XMC STC */
CVMX_L2C_EVENT_XMC_DWB = 28, /**< XMC DWB */
CVMX_L2C_EVENT_XMC_PL2 = 29, /**< XMC PL2 */
CVMX_L2C_EVENT_XMC_PSL1 = 30, /**< XMC PSL1 */
CVMX_L2C_EVENT_XMC_IOBLD = 31, /**< XMC IOBLD */
CVMX_L2C_EVENT_XMC_IOBST = 32, /**< XMC IOBST */
CVMX_L2C_EVENT_XMC_IOBDMA = 33, /**< XMC IOBDMA */
CVMX_L2C_EVENT_XMC_IOBRSP = 34, /**< XMC IOBRSP */
CVMX_L2C_EVENT_XMC_BUS_VALID = 35, /**< XMC Bus valid (all) */
CVMX_L2C_EVENT_XMC_MEM_DATA = 36, /**< XMC Bus valid (DST=L2C) Memory */
CVMX_L2C_EVENT_XMC_REFL_DATA = 37, /**< XMC Bus valid (DST=IOB) REFL Data */
CVMX_L2C_EVENT_XMC_IOBRSP_DATA = 38, /**< XMC Bus valid (DST=PP) IOBRSP Data */
CVMX_L2C_EVENT_RSC_NOP = 39, /**< RSC NOP */
CVMX_L2C_EVENT_RSC_STDN = 40, /**< RSC STDN */
CVMX_L2C_EVENT_RSC_FILL = 41, /**< RSC FILL */
CVMX_L2C_EVENT_RSC_REFL = 42, /**< RSC REFL */
CVMX_L2C_EVENT_RSC_STIN = 43, /**< RSC STIN */
CVMX_L2C_EVENT_RSC_SCIN = 44, /**< RSC SCIN */
CVMX_L2C_EVENT_RSC_SCFL = 45, /**< RSC SCFL */
CVMX_L2C_EVENT_RSC_SCDN = 46, /**< RSC SCDN */
CVMX_L2C_EVENT_RSC_DATA_VALID = 47, /**< RSC Data Valid */
CVMX_L2C_EVENT_RSC_VALID_FILL = 48, /**< RSC Data Valid (FILL) */
CVMX_L2C_EVENT_RSC_VALID_STRSP = 49, /**< RSC Data Valid (STRSP) */
CVMX_L2C_EVENT_RSC_VALID_REFL = 50, /**< RSC Data Valid (REFL) */
CVMX_L2C_EVENT_LRF_REQ = 51, /**< LRF-REQ (LFB-NQ) */
CVMX_L2C_EVENT_DT_RD_ALLOC = 52, /**< DT RD-ALLOC */
CVMX_L2C_EVENT_DT_WR_INVAL = 53, /**< DT WR-INVAL */
CVMX_L2C_EVENT_MAX
};
typedef enum cvmx_l2c_event cvmx_l2c_event_t;
/* L2C Performance Counter events for Octeon2. */
enum cvmx_l2c_tad_event {
CVMX_L2C_TAD_EVENT_NONE = 0, /* None */
CVMX_L2C_TAD_EVENT_TAG_HIT = 1, /* L2 Tag Hit */
CVMX_L2C_TAD_EVENT_TAG_MISS = 2, /* L2 Tag Miss */
CVMX_L2C_TAD_EVENT_TAG_NOALLOC = 3, /* L2 Tag NoAlloc (forced no-allocate) */
CVMX_L2C_TAD_EVENT_TAG_VICTIM = 4, /* L2 Tag Victim */
CVMX_L2C_TAD_EVENT_SC_FAIL = 5, /* SC Fail */
CVMX_L2C_TAD_EVENT_SC_PASS = 6, /* SC Pass */
CVMX_L2C_TAD_EVENT_LFB_VALID = 7, /* LFB Occupancy (each cycle adds \# of LFBs valid) */
CVMX_L2C_TAD_EVENT_LFB_WAIT_LFB = 8, /* LFB Wait LFB (each cycle adds \# LFBs waiting for other LFBs) */
CVMX_L2C_TAD_EVENT_LFB_WAIT_VAB = 9, /* LFB Wait VAB (each cycle adds \# LFBs waiting for VAB) */
CVMX_L2C_TAD_EVENT_QUAD0_INDEX = 128, /* Quad 0 index bus inuse */
CVMX_L2C_TAD_EVENT_QUAD0_READ = 129, /* Quad 0 read data bus inuse */
CVMX_L2C_TAD_EVENT_QUAD0_BANK = 130, /* Quad 0 \# banks inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD0_WDAT = 131, /* Quad 0 wdat flops inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD1_INDEX = 144, /* Quad 1 index bus inuse */
CVMX_L2C_TAD_EVENT_QUAD1_READ = 145, /* Quad 1 read data bus inuse */
CVMX_L2C_TAD_EVENT_QUAD1_BANK = 146, /* Quad 1 \# banks inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD1_WDAT = 147, /* Quad 1 wdat flops inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD2_INDEX = 160, /* Quad 2 index bus inuse */
CVMX_L2C_TAD_EVENT_QUAD2_READ = 161, /* Quad 2 read data bus inuse */
CVMX_L2C_TAD_EVENT_QUAD2_BANK = 162, /* Quad 2 \# banks inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD2_WDAT = 163, /* Quad 2 wdat flops inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD3_INDEX = 176, /* Quad 3 index bus inuse */
CVMX_L2C_TAD_EVENT_QUAD3_READ = 177, /* Quad 3 read data bus inuse */
CVMX_L2C_TAD_EVENT_QUAD3_BANK = 178, /* Quad 3 \# banks inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_QUAD3_WDAT = 179, /* Quad 3 wdat flops inuse (0-4/cycle) */
CVMX_L2C_TAD_EVENT_MAX
};
typedef enum cvmx_l2c_tad_event cvmx_l2c_tad_event_t;
/**
* Configure one of the four L2 Cache performance counters to capture event
* occurences.
*
* @param counter The counter to configure. Range 0..3.
* @param event The type of L2 Cache event occurrence to count.
* @param clear_on_read When asserted, any read of the performance counter
* clears the counter.
*
* @note The routine does not clear the counter.
*/
void cvmx_l2c_config_perf(uint32_t counter, cvmx_l2c_event_t event, uint32_t clear_on_read);
/**
* Read the given L2 Cache performance counter. The counter must be configured
* before reading, but this routine does not enforce this requirement.
*
* @param counter The counter to configure. Range 0..3.
*
* @return The current counter value.
*/
uint64_t cvmx_l2c_read_perf(uint32_t counter);
/**
* Return the L2 Cache way partitioning for a given core.
*
* @param core The core processor of interest.
*
* @return The mask specifying the partitioning. 0 bits in mask indicates
* the cache 'ways' that a core can evict from.
* -1 on error
*/
int cvmx_l2c_get_core_way_partition(uint32_t core);
/**
* Partitions the L2 cache for a core
*
* @param core The core that the partitioning applies to.
* @param mask The partitioning of the ways expressed as a binary
* mask. A 0 bit allows the core to evict cache lines from
* a way, while a 1 bit blocks the core from evicting any
* lines from that way. There must be at least one allowed
* way (0 bit) in the mask.
*
* @note If any ways are blocked for all cores and the HW blocks, then
* those ways will never have any cache lines evicted from them.
* All cores and the hardware blocks are free to read from all
* ways regardless of the partitioning.
*/
int cvmx_l2c_set_core_way_partition(uint32_t core, uint32_t mask);
/**
* Return the L2 Cache way partitioning for the hw blocks.
*
* @return The mask specifying the reserved way. 0 bits in mask indicates
* the cache 'ways' that a core can evict from.
* -1 on error
*/
int cvmx_l2c_get_hw_way_partition(void);
/**
* Partitions the L2 cache for the hardware blocks.
*
* @param mask The partitioning of the ways expressed as a binary
* mask. A 0 bit allows the core to evict cache lines from
* a way, while a 1 bit blocks the core from evicting any
* lines from that way. There must be at least one allowed
* way (0 bit) in the mask.
*
* @note If any ways are blocked for all cores and the HW blocks, then
* those ways will never have any cache lines evicted from them.
* All cores and the hardware blocks are free to read from all
* ways regardless of the partitioning.
*/
int cvmx_l2c_set_hw_way_partition(uint32_t mask);
/**
* Return the L2 Cache way partitioning for the second set of hw blocks.
*
* @return The mask specifying the reserved way. 0 bits in mask indicates
* the cache 'ways' that a core can evict from.
* -1 on error
*/
int cvmx_l2c_get_hw_way_partition2(void);
/**
* Partitions the L2 cache for the second set of blocks.
*
* @param mask The partitioning of the ways expressed as a binary
* mask. A 0 bit allows the core to evict cache lines from
* a way, while a 1 bit blocks the core from evicting any
* lines from that way. There must be at least one allowed
* way (0 bit) in the mask.
*
* @note If any ways are blocked for all cores and the HW blocks, then
* those ways will never have any cache lines evicted from them.
* All cores and the hardware blocks are free to read from all
* ways regardless of the partitioning.
*/
int cvmx_l2c_set_hw_way_partition2(uint32_t mask);
/**
* Locks a line in the L2 cache at the specified physical address
*
* @param addr physical address of line to lock
*
* @return 0 on success,
* 1 if line not locked.
*/
int cvmx_l2c_lock_line(uint64_t addr);
/**
* Locks a specified memory region in the L2 cache.
*
* Note that if not all lines can be locked, that means that all
* but one of the ways (associations) available to the locking
* core are locked. Having only 1 association available for
* normal caching may have a significant adverse affect on performance.
* Care should be taken to ensure that enough of the L2 cache is left
* unlocked to allow for normal caching of DRAM.
*
* @param start Physical address of the start of the region to lock
* @param len Length (in bytes) of region to lock
*
* @return Number of requested lines that where not locked.
* 0 on success (all locked)
*/
int cvmx_l2c_lock_mem_region(uint64_t start, uint64_t len);
/**
* Unlock and flush a cache line from the L2 cache.
* IMPORTANT: Must only be run by one core at a time due to use
* of L2C debug features.
* Note that this function will flush a matching but unlocked cache line.
* (If address is not in L2, no lines are flushed.)
*
* @param address Physical address to unlock
*
* @return 0: line not unlocked
* 1: line unlocked
*/
int cvmx_l2c_unlock_line(uint64_t address);
/**
* Unlocks a region of memory that is locked in the L2 cache
*
* @param start start physical address
* @param len length (in bytes) to unlock
*
* @return Number of locked lines that the call unlocked
*/
int cvmx_l2c_unlock_mem_region(uint64_t start, uint64_t len);
/**
* Read the L2 controller tag for a given location in L2
*
* @param association
* Which association to read line from
* @param index Which way to read from.
*
* @return l2c tag structure for line requested.
*
* NOTE: This function is deprecated and cannot be used on devices with
* multiple L2C interfaces such as the OCTEON CN68XX.
* Please use cvmx_l2c_get_tag_v2 instead.
*/
cvmx_l2c_tag_t cvmx_l2c_get_tag(uint32_t association, uint32_t index)
__attribute__ ((deprecated));
/**
* Read the L2 controller tag for a given location in L2
*
* @param association
* Which association to read line from
* @param index Which way to read from.
*
* @param tad Which TAD to read from, set to 0 except on OCTEON CN68XX.
*
* @return l2c tag structure for line requested.
*/
cvmx_l2c_tag_t cvmx_l2c_get_tag_v2(uint32_t association, uint32_t index, uint32_t tad);
/**
* Find the TAD for the specified address
*
* @param addr physical address to get TAD for
*
* @return TAD number for address.
*/
int cvmx_l2c_address_to_tad(uint64_t addr);
/**
* Returns the cache index for a given physical address
*
* @param addr physical address
*
* @return L2 cache index
*/
uint32_t cvmx_l2c_address_to_index (uint64_t addr);
/**
* Returns the L2 tag that will be used for the given physical address
*
* @param addr physical address
* @return L2 cache tag. Addreses in the LMC hole are not valid.
* Returns 0xFFFFFFFF if the address specified is in the LMC hole.
*/
uint32_t cvmx_l2c_v2_address_to_tag(uint64_t addr);
/**
* Flushes (and unlocks) the entire L2 cache.
* IMPORTANT: Must only be run by one core at a time due to use
* of L2C debug features.
*/
void cvmx_l2c_flush(void);
/**
*
* @return Returns the size of the L2 cache in bytes,
* -1 on error (unrecognized model)
*/
int cvmx_l2c_get_cache_size_bytes(void);
/**
* Return the number of sets in the L2 Cache
*
* @return
*/
int cvmx_l2c_get_num_sets(void);
/**
* Return log base 2 of the number of sets in the L2 cache
* @return
*/
int cvmx_l2c_get_set_bits(void);
/**
* Return the number of associations in the L2 Cache
*
* @return
*/
int cvmx_l2c_get_num_assoc(void);
/**
* Flush a line from the L2 cache
* This should only be called from one core at a time, as this routine
* sets the core to the 'debug' core in order to flush the line.
*
* @param assoc Association (or way) to flush
* @param index Index to flush
*/
void cvmx_l2c_flush_line(uint32_t assoc, uint32_t index);
/**
* Initialize the BIG address in L2C+DRAM to generate proper error
* on reading/writing to an non-existant memory location.
*
* @param mem_size Amount of DRAM configured in MB.
* @param mode Allow/Disallow reporting errors L2C_INT_SUM[BIGRD,BIGWR].
*/
void cvmx_l2c_set_big_size(uint64_t mem_size, int mode);
#if !defined(CVMX_BUILD_FOR_LINUX_HOST) && !defined(CVMX_BUILD_FOR_LINUX_KERNEL)
/*
* Set maxium number of Virtual IDS allowed in a machine.
*
* @param nvid Number of virtial ids allowed in a machine.
* @return Return 0 on success or -1 on failure.
*/
int cvmx_l2c_vrt_set_max_virtids(int nvid);
/**
* Get maxium number of virtual IDs allowed in a machine.
*
* @return Return number of virtual machine IDs. Return -1 on failure.
*/
int cvmx_l2c_vrt_get_max_virtids(void);
/**
* Set the maxium size of memory space to be allocated for virtualization.
*
* @param memsz Size of the virtual memory in GB
* @return Return 0 on success or -1 on failure.
*/
int cvmx_l2c_vrt_set_max_memsz(int memsz);
/**
* Set a Virtual ID to a set of cores.
*
* @param virtid Assign virtid to a set of cores.
* @param coremask The group of cores to assign a unique virtual id.
* @return Return 0 on success, otherwise -1.
*/
int cvmx_l2c_vrt_assign_virtid(int virtid, uint32_t coremask);
/**
* Remove a virt id assigned to a set of cores. Update the virtid mask and
* virtid stored for each core.
*
* @param coremask the group of cores whose virtual id is removed.
*/
void cvmx_l2c_vrt_remove_virtid(int virtid);
/**
* Block a memory region to be updated by a set of virtids.
*
* @param start_addr Starting address of memory region
* @param size Size of the memory to protect
* @param virtid_mask Virtual ID to use
* @param mode Allow/Disallow write access
* = 0, Allow write access by virtid
* = 1, Disallow write access by virtid
*/
int cvmx_l2c_vrt_memprotect(uint64_t start_addr, int size, int virtid, int mode);
/**
* Enable virtualization.
*/
void cvmx_l2c_vrt_enable(int mode);
/**
* Disable virtualization.
*/
void cvmx_l2c_vrt_disable(void);
#endif /* CVMX_BUILD_FOR_LINUX_HOST */
#endif /* __CVMX_L2C_H__ */
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