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Merge tag 'riscv-for-linus-5.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

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Pull RISC-V updates from Palmer Dabbelt:

 - Support for the Svpbmt extension, which allows memory attributes to
   be encoded in pages

 - Support for the Allwinner D1's implementation of page-based memory
   attributes

 - Support for running rv32 binaries on rv64 systems, via the compat
   subsystem

 - Support for kexec_file()

 - Support for the new generic ticket-based spinlocks, which allows us
   to also move to qrwlock. These should have already gone in through
   the asm-geneic tree as well

 - A handful of cleanups and fixes, include some larger ones around
   atomics and XIP

* tag 'riscv-for-linus-5.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits)
  RISC-V: Prepare dropping week attribute from arch_kexec_apply_relocations[_add]
  riscv: compat: Using seperated vdso_maps for compat_vdso_info
  RISC-V: Fix the XIP build
  RISC-V: Split out the XIP fixups into their own file
  RISC-V: ignore xipImage
  RISC-V: Avoid empty create_*_mapping definitions
  riscv: Don't output a bogus mmu-type on a no MMU kernel
  riscv: atomic: Add custom conditional atomic operation implementation
  riscv: atomic: Optimize dec_if_positive functions
  riscv: atomic: Cleanup unnecessary definition
  RISC-V: Load purgatory in kexec_file
  RISC-V: Add purgatory
  RISC-V: Support for kexec_file on panic
  RISC-V: Add kexec_file support
  RISC-V: use memcpy for kexec_file mode
  kexec_file: Fix kexec_file.c build error for riscv platform
  riscv: compat: Add COMPAT Kbuild skeletal support
  riscv: compat: ptrace: Add compat_arch_ptrace implement
  riscv: compat: signal: Add rt_frame implementation
  riscv: add memory-type errata for T-Head
  ...
This commit is contained in:
Linus Torvalds
2022-05-31 14:10:54 -07:00
parent e1cbc3b96a 7699f7aacf
commit 35b51afd23
112 changed files with 2788 additions and 790 deletions
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113
include/asm-generic/compat.h
View File

@ -2,6 +2,25 @@
#ifndef __ASM_GENERIC_COMPAT_H
#define __ASM_GENERIC_COMPAT_H
#ifndef COMPAT_USER_HZ
#define COMPAT_USER_HZ 100
#endif
#ifndef COMPAT_RLIM_INFINITY
#define COMPAT_RLIM_INFINITY 0xffffffff
#endif
#ifndef COMPAT_OFF_T_MAX
#define COMPAT_OFF_T_MAX 0x7fffffff
#endif
#if !defined(compat_arg_u64) && !defined(CONFIG_CPU_BIG_ENDIAN)
#define compat_arg_u64(name) u32 name##_lo, u32 name##_hi
#define compat_arg_u64_dual(name) u32, name##_lo, u32, name##_hi
#define compat_arg_u64_glue(name) (((u64)name##_lo & 0xffffffffUL) | \
((u64)name##_hi << 32))
#endif
/* These types are common across all compat ABIs */
typedef u32 compat_size_t;
typedef s32 compat_ssize_t;
@ -24,6 +43,11 @@ typedef u32 compat_caddr_t;
typedef u32 compat_aio_context_t;
typedef u32 compat_old_sigset_t;
#ifndef __compat_uid_t
typedef u32 __compat_uid_t;
typedef u32 __compat_gid_t;
#endif
#ifndef __compat_uid32_t
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
@ -47,4 +71,93 @@ typedef u32 compat_sigset_word;
#define _COMPAT_NSIG_BPW 32
#endif
#ifndef compat_dev_t
typedef u32 compat_dev_t;
#endif
#ifndef compat_ipc_pid_t
typedef s32 compat_ipc_pid_t;
#endif
#ifndef compat_fsid_t
typedef __kernel_fsid_t compat_fsid_t;
#endif
#ifndef compat_statfs
struct compat_statfs {
compat_int_t f_type;
compat_int_t f_bsize;
compat_int_t f_blocks;
compat_int_t f_bfree;
compat_int_t f_bavail;
compat_int_t f_files;
compat_int_t f_ffree;
compat_fsid_t f_fsid;
compat_int_t f_namelen;
compat_int_t f_frsize;
compat_int_t f_flags;
compat_int_t f_spare[4];
};
#endif
#ifndef compat_ipc64_perm
struct compat_ipc64_perm {
compat_key_t key;
__compat_uid32_t uid;
__compat_gid32_t gid;
__compat_uid32_t cuid;
__compat_gid32_t cgid;
compat_mode_t mode;
unsigned char __pad1[4 - sizeof(compat_mode_t)];
compat_ushort_t seq;
compat_ushort_t __pad2;
compat_ulong_t unused1;
compat_ulong_t unused2;
};
struct compat_semid64_ds {
struct compat_ipc64_perm sem_perm;
compat_ulong_t sem_otime;
compat_ulong_t sem_otime_high;
compat_ulong_t sem_ctime;
compat_ulong_t sem_ctime_high;
compat_ulong_t sem_nsems;
compat_ulong_t __unused3;
compat_ulong_t __unused4;
};
struct compat_msqid64_ds {
struct compat_ipc64_perm msg_perm;
compat_ulong_t msg_stime;
compat_ulong_t msg_stime_high;
compat_ulong_t msg_rtime;
compat_ulong_t msg_rtime_high;
compat_ulong_t msg_ctime;
compat_ulong_t msg_ctime_high;
compat_ulong_t msg_cbytes;
compat_ulong_t msg_qnum;
compat_ulong_t msg_qbytes;
compat_pid_t msg_lspid;
compat_pid_t msg_lrpid;
compat_ulong_t __unused4;
compat_ulong_t __unused5;
};
struct compat_shmid64_ds {
struct compat_ipc64_perm shm_perm;
compat_size_t shm_segsz;
compat_ulong_t shm_atime;
compat_ulong_t shm_atime_high;
compat_ulong_t shm_dtime;
compat_ulong_t shm_dtime_high;
compat_ulong_t shm_ctime;
compat_ulong_t shm_ctime_high;
compat_pid_t shm_cpid;
compat_pid_t shm_lpid;
compat_ulong_t shm_nattch;
compat_ulong_t __unused4;
compat_ulong_t __unused5;
};
#endif
#endif