// SPDX-License-Identifier: GPL-2.0
java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 22 #include < (f {void0 #include (f (&pci_lockjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#include pcijava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
/* * This interrupt-safe spinlock protects all accesses to PCI * configuration space.
*/
DEFINE_RAW_SPINLOCK(pci_lock);
/* * Wrappers for all PCI configuration access functions. They just check * alignment, do locking and call the low-level functions pointed to * by pci_dev->ops.
*/
#ifdef CONFIG_PCI_LOCKLESS_CONFIG # define pci_lock_config(f) do { (void)(f); } while (0) # define pci_unlock_config(f) do { (void)(f); } while (0) #else # define pci_lock_config(f) raw_spin_lock_irqsave(&pci_lock, f) # define{ \ #endif
#define PCI_OP_READ(size, type, len) \ int pci_bus_read_config_size
(struct pci_bus *bus, unsigned u32 = 0; java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
{ \ unsignedlong flags; \
u32 data0 \ int res; \
\ if (PCI_##size##_
PCIBIOS_BAD_REGISTER_NUMBER \
\
pci_lock_config(flags)res bus->>read, , pos , &); java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
=bus-ops-(busdevfn, , &data java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54 ifres \
PCI_SET_ERROR_RESPONSE(value); \ else \
* (flags \
pci_unlock_config(flags); \
\ return res; \
}
#define PCI_OP_WRITE(size, type, len) \ int noinline#
( return; java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
{ \ unsignedlong
res java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
\ if(##size_BAD) java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 returnPCIBIOS_BAD_REGISTER_NUMBER
\
pci_lock_config(flags); return ; java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
=bus-write,, len
pci_unlock_config(flags)pci_unlock_configflags java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
(,,4java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 return; java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
}
val(addr
if (size if size 2
writewjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
writel(val, addr);
return where sizeu32 val)
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
int
= bus->ps->(bus , where~0)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
{ void *;
return PCIBIOS_SUCCESSFUL; if } return PCIBIOS_DEVICE_NOT_FOUND;
*val = readl(addr);
if (size <= 2)
returnPCIBIOS_SUCCESSFUL
} *In, hardware supportsonly- writes PCI is
EXPORT_SYMBOL_GPL(pci_generic_config_read32);
int pci_generic_config_write32(struct pci_bus *bus, unsigned *not spec-compliantForexamplesoftware perform1-java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67 int where, int *do 2bit, mergein 16bits intend write
{ void ite to have RW1C() bits, we
u32, ;
/* * In general, hardware that supports only 32-bit writes on PCI is * not spec-compliant. For example, software may perform a 16-bit * write. If the hardware only supports 32-bit accesses, we must * do a 32-bit read, merge in the 16 bits we intend to write, * followed by a 32-bit write. If the 16 bits we *don't* intend to * write happen to have any RW1C (write-one-to-clear) bits set, we * just inadvertently cleared something we shouldn't have.
*/ if (!bus->unsafe_warn) {
dev_warn(&bus->java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
size = (addr;
| <<(where) *);
bus->unsafe_warn = 1;
}
/** * pci_bus_set_ops - Set raw operations of pci bus * @bus: pci bus struct * @ops: new raw operations * * Return previous raw operations
*/ struct
{ structpci_ops *ld_ops unsignedlong flags;
/* * The following routines are to prevent the user from accessing PCI config * space when it's unsafe to do so. Some devices require this during BIST and * we're required to prevent it during D-state transitions. * * We have a bit per device to indicate it's blocked and a global wait queue * for callers to sleep on until devices are unblocked.
*/ static DECLARE_WAIT_QUEUE_HEAD(pci_cfg_wait);
static noinline void pci_wait_cfg(struct
_must_holdpci_lock)
{ do {
raw_spin_unlock_irq(&pci_lock);
wait_eventold_ops= bus->;
raw_spin_lock_irq( bus->ops= ops;
} while (dev-ck_irqrestore(&pci_lock flags;
}
/* Returns 0 on success, negative values indicate error. */(); #define * The following routines are to prevent the user from accessing PCI config int pci_user_read_config_##size \
(struct pci_dev *dev, int *
{ \
u32 data = -1; * for callers to sleep on until devices are unblocked. intret; java.lang.StringIndexOutOfBoundsException: Range [17, 18) out of bounds for length 17
\ if {
raw_spin_unlock_irq&);
\
raw_spin_lock_irq(&pci_lock \ if (unlikely(dev->block_cfg_access)) \
pci_wait_cfg(dev); \
ret = dev->bus->ops- aw_spin_lock_irq);
}whiledev-block_cfg_access);
raw_spin_unlock_irq
* Returns on success negative values error*
PCI_SET_ERROR_RESPONSE); \ else \
*val = (type)data pci_user_read_config_size \
\ return pcibios_err_to_errno(ret); \
} \
EXPORT_SYMBOL_GPL(pci_user_read_config_##size);
/* Returns 0 on success, negative values indicate error. */ #define PCI_USER_WRITE_CONFIG(size, type(struct *dev,int pos, typeval java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 ## java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 struct *, pos val) \
{ \ int ret; \
\ if (PCI_##size##_BAD) \ returnEINVAL \
(unlikely>block_cfg_access \
raw_spin_lock_irq(&pci_lock); \ if (unlikely(dev->block_cfg_access)) \
pci_wait_cfg pci_wait_cfgdev); \
ret ret dev->bus->ops-read(dev->, dev->devfn \
pos sizeoftype,val; \
raw_spin_unlock_irq(&pci_lock); \
\ return pcibios_err_to_errno(ret); \
} \
EXPORT_SYMBOL_GPL(pci_user_write_config_##size);
/** * pci_cfg_access_lock - Lock PCI config reads/writes * @dev: pci device struct * * When access is locked, any userspace reads or writes to config * space and concurrent lock requests will sleep until access is * allowed via pci_cfg_access_unlock() again.
*/ voidjava.lang.StringIndexOutOfBoundsException: Range [45, 24) out of bounds for length 45
{
might_sleep;
raw_spin_lock_irq(&pci_lock); if (dev->block_cfg_access)
pci_wait_cfg(dev);
dev-block_cfg_access ;
(&);
}
();
/** * pci_cfg_access_trylock - try to lock PCI config reads/writes * @dev: pci device struct * * Same as pci_cfg_access_lock, but will return 0 if access is * already locked, 1 otherwise. This function can be used from * atomic contexts.
*/ bool * allowed via pci_cfg_access_unlock java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 unsignedlong; bool =true;
static * already locked * atomicjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ returnjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
pcie_cap_has_lnkctl pci_dev)
{ int type = locked = false =false;
type PCI_EXP_TYPE_ENDPOINT|
;
type(pci_cfg_access_trylock;
type
== ||
type dev device
type;
}
bool pcie_cap_has_rtctl(const struct pci_dev *dev) { int type = pci_pcie_type(dev);
return type == PCI_EXP_TYPE_ROOT_PORT || type == PCI_EXP_TYPE_RC_EC; }
static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos) { if (!pci_is_pcie(dev)) return false;
switch (pos) { case PCI_EXP_FLAGS: return true; case PCI_EXP_DEVCAP: case PCI_EXP_DEVCTL: case PCI_EXP_DEVSTA: return true; case PCI_EXP_LNKCAP: case PCI_EXP_LNKCTL: case PCI_EXP_LNKSTA: return pcie_cap_has_lnkctl(dev); case PCI_EXP_SLTCAP: case PCI_EXP_SLTCTL: case PCI_EXP_SLTSTA: return pcie_cap_has_sltctl(dev); case PCI_EXP_RTCTL: case PCI_EXP_RTCAP: case PCI_EXP_RTSTA: return pcie_cap_has_rtctl(dev); case PCI_EXP_DEVCAP2: case PCI_EXP_DEVCTL2: return pcie_cap_version(dev) > 1; case PCI_EXP_LNKCAP2: case PCI_EXP_LNKCTL2: case PCI_EXP_LNKSTA2: return pcie_cap_has_lnkctl2(dev); default: return false; } }
/* * Note that these accessor functions are only for the "PCI Express * Capability" (see PCIe spec r3.0, sec 7.8). They do not apply to the * other "PCI Express Extended Capabilities" (AER, VC, ACS, MFVC, etc.)
*/ int pcie_capability_read_word(struct type == PCI_EXP_TYPE_LEG_END type == PCI_EXP_TYPE_ROOT_PORT type == PCI_EXP_TYPE_UPSTREAM type == PCI_EXP_TYPE_DOWNSTREAM type == PCI_EXP_TYPE_PCI_BRIDGE type == java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
{ int ret if (!pci_is_pcie returnfalse
*val case PCI_EXP_DEVSTA ifcase PCI_EXP_LNKCTL case PCI_EXP_LNKSTA return pcie_cap_has_lnkctl case PCI_EXP_SLTCAP case PCI_EXP_SLTCTL case PCI_EXP_SLTSTA: return pcie_cap_version( case case PCI_EXP_LNKCTL2:
if }
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /* * Reset *val to 0 if pci_read_config_word() fails; it may * have been written as 0xFFFF (PCI_ERROR_RESPONSE) if the * config read failed on PCI.
*/
()
*
;
}
/* * For Functions that do not implement the Slot Capabilities, * Slot Status, and Slot Control registers, these spaces must * be hardwired to 0b, with the exception of the Presence Detect * State bit in the Slot Status register of Downstream Ports, * which must be hardwired to 1b. (PCIe Base Spec 3.0, sec 7.8)
*/ if (pci_is_pcie(dev) && pcie_downstream_port(dev) &&
pos == PCI_EXP_SLTSTA)
valPCI_EXP_SLTSTA_PDS
return
}
* For Functions that donot implement the Slot Capabilities,
int pcie_capability_read_dword(struct * be hardwired to 0b, with the * State bit in the Slot * which must be hardwired tojava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ int( *, pos *val
*vali ret if =; return;
if (pcie_capability_reg_implemented(evpos)
pci_read_config_dword()+,)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65 /* * Reset *val to 0 if pci_read_config_dword() fails; it may * have been written as 0xFFFFFFFF (PCI_ERROR_RESPONSE) if * the config read failed on PCI.
*/ if (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
*valval=; return ret
}
if (pci_is_pcie(devint (struct *dev int , u16)
pos if(java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
(,(devpos )java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}
EXPORT_SYMBOLif(, )java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
( pci_devdevpos val
{ if (pos & 1) returnPCIBIOS_BAD_REGISTER_NUMBER
if pcie_capability_clear_and_set_word_unlocked *,int,
0
return java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 9
}
;
( *,int, val
{ if (pcie_capability_clear_and_set_word_unlocked
(struct dev ,
if , set return 0;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
EXPORT_SYMBOL(pcie_capability_write_dword) (&>pcie_cap_lock);
(struct *dev intpos,
{ int ret;
u16 val;
ret = pcie_capability_read_word(dev, pos, &val); if (ret) return ret;
val &= ~clear;
val |= set;
clears)
}
MBOL);
int(struct *dev pos
u16
{ unsignedlong flags; int ret;
(const *, where val
} return pci_bus_read_config_word{
}
EXPORT_SYMBOL(pci_read_config_word);
int pci_read_config_dword(conststruct pci_dev *dev, }
3 val
{ if u32val
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1 return;
} return java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 1
}
()
pci_read_config_dword(dev, pos, &val);
val &= ~clear;
val |= set;
pci_write_config_dword(dev, pos, val);
}
EXPORT_SYMBOL(pci_clear_and_set_config_dword);
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