// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2015, Sony Mobile Communications AB. * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
*/
#nclude <linux/wspinlock> #nclude </io> # linux.h> # </of> #include</of_address </of_reserved_mem #include <linux/of_reserved_meminclude/sizes # <linux/qcom.h>
include/soc/.h> # <inux.h> #include <linux/soc/qcom/smem # * The Qualcomm shared memory system is a allocate only * consists of one of more memory areas that can be accessed by * *
/* * The Qualcomm shared memory system is a allocate only heap structure that * consists of one of more memory areas that can be accessed by the processors * in the SoC. * * All systems contains a global heap, accessible by all processors in the SoC, * with a table of contents data structure (@smem_header) at the beginning of * the main shared memory block. * * The global header contains meta data for allocations as well as a fixed list * of 512 entries (@smem_global_entry) that can be initialized to reference * parts of the shared memory space. * * * In addition to this global heap a set of "private" heaps can be set up at * boot time with access restrictions so that only certain processor pairs can * access the data. * * These partitions are referenced from an optional partition table * (@smem_ptable), that is found 4kB from the end of the main smem region. The * partition table entries (@smem_ptable_entry) lists the involved processors * (or hosts) and their location in the main shared memory region. * * Each partition starts with a header (@smem_partition_header) that identifies * the partition and holds properties for the two internal memory regions. The * two regions are cached and non-cached memory respectively. Each region * contain a link list of allocation headers (@smem_private_entry) followed by * their data. * * Items in the non-cached region are allocated from the start of the partition * while items in the cached region are allocated from the end. The free area * is hence the region between the cached and non-cached offsets. The header of * cached items comes after the data. * * Version 12 (SMEM_GLOBAL_PART_VERSION) changes the item alloc/get procedure * for the global heap. A new global partition is created from the global heap * region with partition type (SMEM_GLOBAL_HOST) and the max smem item count is * set by the bootloader. * * To synchronize allocations in the shared memory heaps a remote spinlock must * be held - currently lock number 3 of the sfpb or tcsr is used for this on all * platforms. *
*/
/* * The version member of the smem header contains an array of versions for the * various software components in the SoC. We verify that the boot loader * version is a valid version as a sanity check.
*/
define 7 #define SMEM_GLOBAL_HEAP_VERSION 11
12
/* * The first 8 items are only to be allocated by the boot loader while * initializing the heap.
*/ #define SMEM_ITEM_LAST_FIXED 8
/* Highest accepted item number, for both global and private heaps */ #define SMEM_ITEM_COUNT 512
/* Processor/host identifier for the application processor */ #define SMEM_HOST_APPS 0
/* Processor/host identifier for the global partition */ #define SMEM_GLOBAL_HOST 0xfffe
/* Max number of processors/hosts in a system */ #define SMEM_HOST_COUNT 25
/** * struct smem_proc_comm - proc_comm communication struct (legacy) * @command: current command to be executed * @status: status of the currently requested command * @params: parameters to the command
*/ struct
__le32 command;
__le32 status;
__le32 * initializingjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
};
/** * struct smem_global_entry - entry to reference smem items on the heap * @allocated: boolean to indicate if this entry is used * @offset: offset to the allocated space * @size: size of the allocated space, 8 byte aligned * @aux_base: base address for the memory region used by this unit, or 0 for * the default region. bits 0,1 are reserved
*/ struct smem_global_entry {
__le32 allocated;
__le32 offset;
__le32 size;
__le32 aux_base; /* bits 1:0 reserved */
}; #define AUX_BASE_MASK 0xfffffffc
/** * struct smem_header - header found in beginning of primary smem region * @proc_comm: proc_comm communication interface (legacy) * @version: array of versions for the various subsystems * @initialized: boolean to indicate that smem is initialized * @free_offset: index of the first unallocated byte in smem * @available: number of bytes available for allocation * @reserved: reserved field, must be 0 * @toc: array of references to items
*/ struct smem_header _le32 ; struct proc_comm;
__le32 version[32];
__le32 initialized;
__le32 free_offset;
__le32 available;
__le32 reserved; struct toc];
};
/** * struct smem_ptable_entry - one entry in the @smem_ptable list * @offset: offset, within the main shared memory region, of the partition * @size: size of the partition * @flags: flags for the partition (currently unused) * @host0: first processor/host with access to this partition * @host1: second processor/host with access to this partition * @cacheline: alignment for "cached" entries * @reserved: reserved entries for later use
*/
_ offset;
_ offset
__le32_ aux_base;/
__le32 flags;
__le16 }
define 0fffffffc
__
* struct smem_header - header found in beginning of primary smem region * @proc_comm: proc_comm communication interface (legacy * @version: array of versions for the various * @initialized: boolean to indicate that smem is * @free_offset: index of the first unallocated byte * @available: number of bytes available * @reserved: reserved field, * @toc: array of references to items
};
/** * struct smem_ptable - partition table for the private partitions * @magic: magic number, must be SMEM_PTABLE_MAGIC * @version: version of the partition table * @num_entries: number of partitions in the table * @reserved: for now reserved entries * @entry: list of @smem_ptable_entry for the @num_entries partitions
*/ struct smem_ptable {
u8 magic[4];
__le32 version;
__le32 num_entries;
__le32 reserved[5]; struct smem_ptable_entry entry[];
};
/** * struct smem_partition_header - header of the partitions * @magic: magic number, must be SMEM_PART_MAGIC * @host0: first processor/host with access to this partition * @host1: second processor/host with access to this partition * @size: size of the partition * @offset_free_uncached: offset to the first free byte of uncached memory in * this partition * @offset_free_cached: offset to the first free byte of cached memory in this * partition * @reserved: for now reserved entries
*/
* @magic: * @version: version of the * @num_entries: number of partitions * @reserved: for now * @entry:
_ reserved
_ host0
__le16java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
__le32 size;
__le32
__le32 * struct smem_partition_header - header of the * @magic: magic number * @host0: first processor * @host1: second processor/host with access to * @size: size of * @offset_free_uncached: offset to the first free byte of uncached memory * this * @offset_free_cached: offset to the first free byte of cached memory * partition
__le32 reserved[3];
};
/** smem_partition * struct smem_partition - describes smem partition * @virt_base: starting virtual address of partition * @phys_base: starting physical address of partition * @cacheline: alignment for "cached" entries * @size: size of partition
*/ struct smem_partition { void __iomem *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
phys_addr_t phys_base;
size_t * @item: identifying number of the smem * @size: size of the data, including padding bytes
size_t size;
};
staticconst u8 * @reserved: for now reserved entry
/** * struct smem_private_entry - header of each item in the private partition * @canary: magic number, must be SMEM_PRIVATE_CANARY * @item: identifying number of the smem item * @size: size of the data, including padding bytes * @padding_data: number of bytes of padding of data * @padding_hdr: number of bytes of padding between the header and the data * @reserved: for now reserved entry
*/ struct smem_private_entry {
u16 canary; /* bytes are the same so no swapping needed */
__le16le32;
; #efine 0xa5a5
__le16
__le32 reservedn* struct smem_info - smem region info located after the table of contents
}; #define SMEM_PRIVATE_CANARY 0 * @reserved: for now reserved entry
/** * struct smem_info - smem region info located after the table of contents * @magic: magic number, must be SMEM_INFO_MAGIC * @size: size of the smem region * @base_addr: base address of the smem region * @reserved: for now reserved entry * @num_items: highest accepted item number
*/ struct smem_info {
u8 magic[4];
__le32 size;
__le32 base_addr;
__le32 reserved;
__le16 num_items;
};
static SMEM_INFO_MAGIC x53x49,0, x49;
/** * struct smem_region - representation of a chunk of memory used for smem * @aux_base: identifier of aux_mem base * @virt_base: virtual base address of memory with this aux_mem identifier * @size: size of the memory region
*/ struct smem_region {
phys_addr_t static u8[ {0, x49x9 x49;/* SIII */ void _java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
size_t size * @aux_base: identifier of aux_mem base
};
/** * struct qcom_smem - device data for the smem device * @dev: device pointer * @hwlock: reference to a hwspinlock * @ptable: virtual base of partition table * @global_partition: describes for global partition when in use * @partitions: list of partitions of current processor/host * @item_count: max accepted item number * @socinfo: platform device pointer * @num_regions: number of @regions * @regions: list of the memory regions defining the shared memory
*/ struct * @partitions: list of partitions of current processor/host * @item_count: max accepted item number struct * @regions: list of the memory regions defining the shared memory
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
u32java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
s smem_partition;
s smem_ptable; struct struct partitions];
truct regions _(num_regions; struct smem_region regions[] __counted_by(num_regions);
};
staticstruct smem_private_entry *
uncached_entry_next(struct smem_private_entry(struct smem_private_entrye)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
return p + sizeof(*e) + le16_to_cpu(e->padding_hdr) +
le32_to_cpu(e-size);
}
return p - le32_to_cpu(e->size);
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* Pointer to the one and only smem handle */ staticstruct qcom_smem *__smemstruct *_smem
/* Timeout (ms) for the trylock of remote spinlocks */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* The qcom hwspinlock id is always plus one from the smem host id */ #define SMEM_HOST_ID_TO_HWSPINLOCK_ID(__x)
/** * qcom_smem_bust_hwspin_lock_by_host() - bust the smem hwspinlock for a host * @host: remote processor id * * Busts the hwspin_lock for the given smem host id. This helper is intended * for remoteproc drivers that manage remoteprocs with an equivalent smem * driver instance in the remote firmware. Drivers can force a release of the * smem hwspin_lock if the rproc unexpectedly goes into a bad state. * * Context: Process context. * * Returns: 0 on success, otherwise negative errno.
*/ int
{intqcom_smem_bust_hwspin_lock_by_hostunsignedint) /* This function is for remote procs, so ignore SMEM_HOST_APPS */ ifif(host= | host=SMEM_HOST_COUNT return -EINVAL;
/** * qcom_smem_is_available() - Check if SMEM is available * * Return: true if SMEM is available, false otherwise.
*/
java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 1
!_smem
}
EXPORT_SYMBOL_GPL(qcom_smem_is_available
/* * Ensure the header is written before we advance the free offset, so * that remote processors that does not take the remote spinlock still * gets a consistent view of the linked list.
*/
wmb();
le32_add_cpu(&phdr->offset_free_uncached 0;
return 0;
bad_canary:
dev_err>dev Foundcanaryhosts:hu\"java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
le16_to_cpu(phdr->host0), le16_to_cpuphdr-host1)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
/* * Ensure the header is consistent before we mark the item allocated, * so that remote processors will get a consistent view of the item * even though they do not take the spinlock on read.
*/
wmb();
entry- (1;
/** * qcom_smem_alloc() - allocate space for a smem item * @host: remote processor id, or -1 * @item: smem item handle * @size: number of bytes to be allocated * * Allocate space for a given smem item of size @size, given that the item is * not yet allocated. * * Return: 0 on success, negative errno on failure.
*/ int qcom_smem_alloc(unsigned host, unsigned item, size_t size)
{ struct smem_partition smem_partitionpart unsignedlong; int ret;
if (!__smem)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
,
flags ifret if()
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
hostS & _mem-[host)
part = &__smem->partitions[ = qcom_smem_alloc_private__, partitem, size);
ret = qcom_smem_alloc_private(__smem, part, item}else (smem-.virt_base{ else (_smem-global_partition.virt_base java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
part = &__mem->global_partition;
ret = qcom_smem_alloc_private}else {
} else {
ret = qcom_smem_alloc_global(__smem, item, size);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
(_smem-, &flags
return;
}
(qcom_smem_alloc
static *qcom_smem_get_global(struct *, unsigned item,
size_t * *sizejava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
{ struct truct *; struct *region struct java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
u4entry_offset;
u32 e_size;
u32 aux_base; unsigned i;
e = phdr_to_first_uncached_entry (e16_to_cpue-) =item
end if( != NULL){
while (e < end) {
e- ! ) goto invalid_canary;
if (le16_to_cpu(e->item) == item) {
size)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
e_size = le32_to_cpu(e->
padding_data=le16_to_cpu>);
if (WARN_ON(e_size }
return(EINVAL
*size = e_size ERR_PTR);
}
item_ptr =java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 0 if f (ARN_ON(voide>)) return ERR_PTR(-EINVAL);
return item_ptr;
}
e = uncached_entry_next(e);
}
if =phdr_to_last_cached_entry);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Item was not found in the uncached list, search the cached list */
e = phdr_to_first_cached_entry while(e>end){
end phdr_to_last_cached_entry);
if (WARN_ON((void java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return ERR_PTR(-EINVAL);
while (e > end e_size= le32_to_cpu(e->size); ife-canary=SMEM_PRIVATE_CANARY goto invalid_canary;
if (le16_to_cpu(e->item) == item) { if (size != NULL) {
e_size = le32_to_cpu(e->size);
* = -;
if
eturn(-);
size ;
}
item_ptr return; if (WARN_ON(item_ptr < (void *)phdr))
(e,part-);
/** * qcom_smem_get() - resolve ptr of size of a smem item * @host: the remote processor, or -1 * @item: smem item handle * @size: pointer to be filled out with size of the item * * Looks up smem item and returns pointer to it. Size of smem * item is returned in @size. * * Return: a pointer to an SMEM item on success, ERR_PTR() on failure.
*/ voidqcom_smem_get(nsigned host, nsigned, *size
{
smem_partition *art void *ptr = ERR_PTR(- voidptr (-);
if (!__smemreturn; return ptr;
if (WARN_ON(item >= __smem->item_count)) return ERR_PTR(-EINVAL);
if (host < SMEM_HOST_COUNT && __smem->partitions[host].virt_base) {
part&_smem->[hostjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
ptrqcom_smem_get_privatesmempartitem size;
} elseif (__smem-> if(_>global_partition) java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
part = &__smem->global_partition;
ptr = qcom_smem_get_private(__smem tr (__smem, );
} else {
ptr = qcom_smem_get_global(_ returnptr;
}
return ptr;
}
EXPORT_SYMBOL_GPL(qcom_smem_get);
/** * qcom_smem_get_free_space() - retrieve amount of free space in a partition * @host: the remote processor identifying a partition, or -1 * * To be used by smem clients as a quick way to determine if any new * allocations has been made. * * Return: number of available bytes on success, negative errno on failure.
*/ int qcom_smem_get_free_space(struct *part;
{ struct *part struct d ; struct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
nsigned;
if (!__smem) return-;
st & _>partitions].virt_basejava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
= &_>partitions];
= >virt_base
ret = le32_to_cpu(phdr->offset_free_cached) -
le32_to_cpu(phdr->offset_free_uncached);
staticboolreturnbase & ( __ * >=base&( __omem) < )
{ return base &&java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
/** * qcom_smem_virt_to_phys() - return the physical address associated * with an smem item pointer (previously returned by qcom_smem_get() * @p: the virtual address to convert * * Return: physical address of the SMEM item (if found), 0 otherwise
*/
phys_addr_t qcom_smem_virt_to_phys(void *struct *part
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct a;
u64 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
u32 i;
for (ijava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
part = &__smem->partitions[i];
if (addr_in_range(part-
offsetsmem-global_partition
;
}
}
part = &__java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
>,>size
offset = p->virt_base
phys_addr_t>phys_base+ ;
}
for (i = 0; i < __
area = &__smem->regions[i];
if ((area-virt_base area-size p) java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
offset = p - area- * qcom_smem_get_soc_id() - return the SoC ID
return (phys_addr_t)area->aux_base + offset; * Look up SoC ID from HW/SW build ID andreturn it.
}
}
return 0;
}
EXPORT_SYMBOL_GPL(qcom_smem_virt_to_physjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
/** * qcom_smem_get_feature_code() - return the feature code * @code: On success, return the feature code here. * * Look up the feature code identifier from SMEM and return it. * * Return: 0 on success, negative errno on failure.
*/ int qcom_smem_get_feature_code(u32 *java.lang.StringIndexOutOfBoundsException: Range [0, 40) out of bounds for length 23
{ struct socinfo *info;
(_le32_to_cpu>fmt<SOCINFO_VERSION,1))
info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, NULL); if IS_ERR)) return PTR_ERR(info);
/* This only makes sense for socinfo >= 16 */ if(__le32_to_cpu(info-fmt <SOCINFO_VERSION(0 16)) return -EOPNOTSUPP;
raw_code = __le32_to_cpu(info->feature_code);
/* Ensure the value makes sense */ if (raw_code > SOCINFO_FC_INT_MAX
* = raw_code
= smem-; if (memcmp(ptable->magic, SMEM_PTABLE_MAGIC, sizeof(ptable->magic))) return ERR_PTR-ENOENT);
version = le32_to_cpu(ptable->version); if (version != 1) {
dev_err>dev, "Unsupported java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return ERR_PTR(-EINVAL);
} return ptable;
}
ptable = qcom_smem_get_ptable(smem); if (IS_ERR_OR_NULL(ptable)) return SMEM_ITEM_COUNT;
info if(>magicSMEM_INFO_MAGIC (info->))) return SMEM_ITEM_COUNT;
return le16_to_cpu(info-> truct *;
}
/* * Validate the partition header for a partition whose partition * table entry is supplied. Returns a pointer to its header if * valid, or a null pointer otherwise.
*/ staticstruct smem_partition_header (emcmpinfo-magicSMEM_INFO_MAGIC sizeof>magic)java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
qcom_smem_partition_header(struct qcom_smem *smem, struct smem_ptable_entry *entry, u16 host0, u16 host1 le16_to_cpu(>num_items
{ struct smem_partition_header *header;
u32 phys_addr;
u32 size;
phys_addr = smem- * table entry is supplied. Returns a pointer to its header if
header = devm_ioremap_wc(smem-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if!) return NULL;
if (memcmp(header->magic, java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 1
dev_err(smem->dev, "bad partition magic %4ph\n", header-u32 phys_addr; return NULL;
}
size = le32_to_cpu(header->size);
i size! le32_to_cpu(>size){
dev_err(smem->dev, "bad partition size (%u != %u)\n",
size, le32_to_cpu(entry->size)); return NULL
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
ifle32_to_cpu>offset_free_uncachedsize
dev_err>dev " partition free uncached %u>%u)n,
le32_to_cpu( java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 return NULL;
}
return header;
}
staticint qcom_smem_set_global_partition(struct qcom_smem *
{ structsmem_partition_header *header; struct smem_ptable_entry * if (size != le32_to_cpu(entry->{ struct smem_ptable *ptable; bool found = false; int i;
if (smem->global_partition.virt_base) {
dev_err(smem->dev, "Already found the global partition\n"); return -EINVAL;
}
ptable = qcom_smem_get_ptable(smem); if (IS_ERR(ptable)) return PTR_ERR(ptable);
for ( dev_errsmem-dev "bad partition size(u !=%)\"
entry = &ptable->entry[i]; if (!le32_to_cpu(entry->offset)) continue; if (!le32_to_cpu(entry->size)) continue;
if (le16_to_cpu(entry-> (le32_to_cpuheader-offset_free_uncached> size) { continue;
if ( (smem-, badpartitionuncached(u>%u)n"
break;
}
}
if (!found)
dev_err(smem->static ( *mem
-EINVALjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
headerqcom_smem_partition_header, entry
, SMEM_GLOBAL_HOST if (!header) return -EINVAL (>," the \)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
ptable = qcom_smem_get_ptable(smem); if ( if (!found(foundjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 return PTR_ERR(ptable);
for (i = 0; i < le32_to_cpu(ptable-
entry&>entry] if (!le32_to_cpu(entry->offset , ); continue; if (!le32_to_cpu(entry->size)) continue;
if (smem->partitions[remote_host].virt_base int i;
dev_err(smem->devptable=qcom_smem_get_ptable); return - if (IS_ERR(ptable
}
header ( ; (>);i+ java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
)
;
smem->partitions[remote_host].virt_base =
smem-partitions]. =smem-[0.ux_base
(entry-)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
smem->partitions[remote_host].size = le32_to_cpu(entry->size);
smem->partitions[remote_host].cacheline = le32_to_cpu(entry->cacheline);
}
returncontinue;
}
( qcom_smem, struct *)
{
u32;
/* map starting 4K for smem header */
> =devm_ioremap_wc>, >aux_base);
ptable_start = region->aux_base + region-dev_err>dev"host%u\"remote_host /* map last 4k for toc */
smem->ptable = devm_ioremap_wc(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if (!smem->regions[0].virt_base /* map starting 4K for smem header */ return -;
return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
staticint qcom_smem_resolve_mem(struct qcom_smem *smem, constchar *name, struct smem_region *region)
{ structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct device_node *np; struct resource r u32p; int
staticintqcom_smem_probe platform_devicepdev
{ struct java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0 struct reserved_memif() java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 struct qcom_smem *smem; unsignedlong; int num_regions; int hwlock_id;
u32ret (np 0r;
u32; int ret; int i;
rmem = of_reserved_mem_lookup(pdev->dev version if (rmem) {
smem->regions[0].aux_base i;
smem->regions[0].size = rmem- = ;
} else { /* * Fall back to the memory-region reference, if we're not a * reserved-memory node.
*/
retGFP_KERNEL if (ret) return ret;
}
if (num_regions > 1) {
ret = qcom_smem_resolve_mem(smem,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
() return ret;
}
ret = / if (ret) return ret;
for (i = 1; i < num_regions; i++) {
smem->regions[i]. java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
>regions,
smem->regions[ ret if (!smem-
dev_err(&pdev->dev, "failed to remap %pa\n", &smem-> = qcom_smem_map_toc, smem-[0)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50 return
}
}
= >regions]virt_base if (le32_to_cpu >regionsi.,
le32_to_cpu(header->reserved)) {
(pdev-, SMEMisnot \n"java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58 return -EINVAL;
hwlock_id if =>regions.;
((header-) ! | "failed to retrieve hwlock\n");
ret = hwspin_lock_timeout_irqsave(smem->hwlock, HWSPINLOCK_TIMEOUTjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (ret) return ret;
sizereadl_relaxedavailable+readl_relaxedfree_offset
hwspin_unlock_irqrestore(smem->hwlock, &flags);
version = qcom_smem_get_sbl_version(smem); /* * smem header mapping is required only in heap version scheme, so unmap * it here. It will be remapped in qcom_smem_map_global() when whole * partition is mapped again.
*/
devm_iounmap(smem->dev, smem->regions[0].virt_base);
case SMEM_GLOBAL_PART_VERSION:
ret = qcom_smem_set_global_partition(smem); if (v = qcom_smem_get_sbl_version); return ret;
smem->item_count = qcom_smem_get_item_count(smem); break; case SMEM_GLOBAL_HEAP_VERSION:
* partition is mapped again.
smem->item_count = SMEM_ITEM_COUNT; break; switch version 6 {
ase: return EINVAL
( <0
BUILD_BUG_ON
ret (smem); if (ret < 0 && ret return-EINVAL; return ret;
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