diff options
Diffstat (limited to 'include')
116 files changed, 1230 insertions, 573 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 0300374101cd..2a462cf4eaa9 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -91,8 +91,8 @@ acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev, bool acpi_dev_found(const char *hid); bool acpi_dev_present(const char *hid, const char *uid, s64 hrv); -const char * -acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv); +struct acpi_device * +acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv); #ifdef CONFIG_ACPI @@ -687,6 +687,10 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev) adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); } +static inline void acpi_dev_put(struct acpi_device *adev) +{ + put_device(&adev->dev); +} #else /* CONFIG_ACPI */ static inline int register_acpi_bus_type(void *bus) { return 0; } diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 24dbb4e742a6..3b1b1d0e4c33 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -12,7 +12,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20190215 +#define ACPI_CA_VERSION 0x20190405 #include <acpi/acconfig.h> #include <acpi/actypes.h> diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h index 65cc9cbf1141..d568128025df 100644 --- a/include/acpi/actbl.h +++ b/include/acpi/actbl.h @@ -66,14 +66,14 @@ ******************************************************************************/ struct acpi_table_header { - char signature[ACPI_NAME_SIZE]; /* ASCII table signature */ + char signature[ACPI_NAMESEG_SIZE]; /* ASCII table signature */ u32 length; /* Length of table in bytes, including this header */ u8 revision; /* ACPI Specification minor version number */ u8 checksum; /* To make sum of entire table == 0 */ char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */ char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */ u32 oem_revision; /* OEM revision number */ - char asl_compiler_id[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */ + char asl_compiler_id[ACPI_NAMESEG_SIZE]; /* ASCII ASL compiler vendor ID */ u32 asl_compiler_revision; /* ASL compiler version */ }; diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index f73382e82c26..ad6892a24015 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -375,7 +375,7 @@ typedef u64 acpi_physical_address; /* Names within the namespace are 4 bytes long */ -#define ACPI_NAME_SIZE 4 +#define ACPI_NAMESEG_SIZE 4 /* Fixed by ACPI spec */ #define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */ #define ACPI_PATH_SEPARATOR '.' @@ -515,11 +515,11 @@ typedef u64 acpi_integer; /* Optimizations for 4-character (32-bit) acpi_name manipulation */ #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED -#define ACPI_COMPARE_NAME(a,b) (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b))) -#define ACPI_MOVE_NAME(dest,src) (*ACPI_CAST_PTR (u32, (dest)) = *ACPI_CAST_PTR (u32, (src))) +#define ACPI_COMPARE_NAMESEG(a,b) (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b))) +#define ACPI_COPY_NAMESEG(dest,src) (*ACPI_CAST_PTR (u32, (dest)) = *ACPI_CAST_PTR (u32, (src))) #else -#define ACPI_COMPARE_NAME(a,b) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE)) -#define ACPI_MOVE_NAME(dest,src) (strncpy (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE)) +#define ACPI_COMPARE_NAMESEG(a,b) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAMESEG_SIZE)) +#define ACPI_COPY_NAMESEG(dest,src) (strncpy (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAMESEG_SIZE)) #endif /* Support for the special RSDP signature (8 characters) */ @@ -529,7 +529,7 @@ typedef u64 acpi_integer; /* Support for OEMx signature (x can be any character) */ #define ACPI_IS_OEM_SIG(a) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_OEM_NAME, 3) &&\ - strnlen (a, ACPI_NAME_SIZE) == ACPI_NAME_SIZE) + strnlen (a, ACPI_NAMESEG_SIZE) == ACPI_NAMESEG_SIZE) /* * Algorithm to obtain access bit width. diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h index fcb61b4659b3..8666fe7f35d7 100644 --- a/include/asm-generic/futex.h +++ b/include/asm-generic/futex.h @@ -23,7 +23,9 @@ * * Return: * 0 - On success - * <0 - On error + * -EFAULT - User access resulted in a page fault + * -EAGAIN - Atomic operation was unable to complete due to contention + * -ENOSYS - Operation not supported */ static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr) @@ -85,7 +87,9 @@ out_pagefault_enable: * * Return: * 0 - On success - * <0 - On error + * -EFAULT - User access resulted in a page fault + * -EAGAIN - Atomic operation was unable to complete due to contention + * -ENOSYS - Function not implemented (only if !HAVE_FUTEX_CMPXCHG) */ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 303871651f8a..8f3bf95a36d1 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -19,12 +19,9 @@ #include <asm-generic/iomap.h> #endif +#include <asm/mmiowb.h> #include <asm-generic/pci_iomap.h> -#ifndef mmiowb -#define mmiowb() do {} while (0) -#endif - #ifndef __io_br #define __io_br() barrier() #endif @@ -49,7 +46,7 @@ /* serialize device access against a spin_unlock, usually handled there. */ #ifndef __io_aw -#define __io_aw() barrier() +#define __io_aw() mmiowb_set_pending() #endif #ifndef __io_pbw diff --git a/include/asm-generic/mmiowb.h b/include/asm-generic/mmiowb.h new file mode 100644 index 000000000000..9439ff037b2d --- /dev/null +++ b/include/asm-generic/mmiowb.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_GENERIC_MMIOWB_H +#define __ASM_GENERIC_MMIOWB_H + +/* + * Generic implementation of mmiowb() tracking for spinlocks. + * + * If your architecture doesn't ensure that writes to an I/O peripheral + * within two spinlocked sections on two different CPUs are seen by the + * peripheral in the order corresponding to the lock handover, then you + * need to follow these FIVE easy steps: + * + * 1. Implement mmiowb() (and arch_mmiowb_state() if you're fancy) + * in asm/mmiowb.h, then #include this file + * 2. Ensure your I/O write accessors call mmiowb_set_pending() + * 3. Select ARCH_HAS_MMIOWB + * 4. Untangle the resulting mess of header files + * 5. Complain to your architects + */ +#ifdef CONFIG_MMIOWB + |