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

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
  ...

diff --cc arch/arm64/Kconfig
index a4968845e67f5e14fb4b65eb7c0bc0ae7276cf25,ff674808681a93f81afa9bf95c132a4d51eb8c5b..1652a9800ebee645616948df2249e186e948baff
--- 1/arch/arm64/Kconfig
--- 2/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@@ -2155,12 -2120,8 +2155,8 @@@ config DM
          However, even with this option, the resultant kernel should
          continue to boot on existing non-UEFI platforms.
  
 -endmenu
 +endmenu # "Boot options"
  
- config SYSVIPC_COMPAT
-       def_bool y
-       depends on COMPAT && SYSVIPC
- 
  menu "Power management options"
  
  source "kernel/power/Kconfig"

diff --cc arch/mips/Kconfig
Simple merge

diff --cc arch/parisc/Kconfig
Simple merge

diff --cc arch/parisc/include/asm/unistd.h
Simple merge

diff --cc arch/powerpc/Kconfig
Simple merge

diff --cc arch/riscv/Kconfig
Simple merge

diff --cc arch/riscv/Kconfig.socs
Simple merge

diff --cc arch/riscv/Makefile
Simple merge

diff --cc arch/riscv/include/asm/csr.h
Simple merge

diff --cc arch/riscv/include/asm/pgtable-64.h
Simple merge

diff --cc arch/riscv/include/asm/pgtable.h
Simple merge

diff --cc arch/riscv/mm/init.c
Simple merge

diff --cc arch/s390/Kconfig
Simple merge

diff --cc arch/s390/include/asm/compat.h
Simple merge

diff --cc arch/sparc/Kconfig
Simple merge

diff --cc arch/x86/Kconfig
Simple merge

diff --cc arch/x86/include/asm/compat.h
index 20fd0acd7d800b58a8b95b2ff807899af94cfae1,e74a107de0d077600be8ae60c2ae8811bb26ed16..b1221da477b7438bf7a562fbbec3069b254addc0
--- 1/arch/x86/include/asm/compat.h
--- 2/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@@ -15,20 -15,27 +15,26 @@@
  #define compat_mode_t compat_mode_t
  typedef u16           compat_mode_t;
  
+ #define __compat_uid_t        __compat_uid_t
+ typedef u16           __compat_uid_t;
+ typedef u16           __compat_gid_t;
+ 
+ #define compat_dev_t  compat_dev_t
+ typedef u16           compat_dev_t;
+ 
+ #define compat_ipc_pid_t compat_ipc_pid_t
+ typedef u16            compat_ipc_pid_t;
+ 
+ #define compat_statfs compat_statfs
+ 
  #include <asm-generic/compat.h>
  
- #define COMPAT_USER_HZ                100
  #define COMPAT_UTS_MACHINE    "i686\0\0"
  
- typedef u16           __compat_uid_t;
- typedef u16           __compat_gid_t;
- typedef u16           compat_dev_t;
  typedef u16           compat_nlink_t;
- typedef u16           compat_ipc_pid_t;
- typedef __kernel_fsid_t       compat_fsid_t;
  
  struct compat_stat {
 -      compat_dev_t    st_dev;
 -      u16             __pad1;
 +      u32             st_dev;
        compat_ino_t    st_ino;
        compat_mode_t   st_mode;
        compat_nlink_t  st_nlink;

diff --cc fs/open.c
Simple merge

diff --cc fs/stat.c
Simple merge

diff --cc include/linux/compat.h
Simple merge

diff --cc include/linux/kexec.h
index fcd5035209f19a510d8ede7103e1ea161088574c,ebb1bffbf068c3a7380f3a14dcef6829a81178d3..ce6536f1d269970856ecabad52f7a7604f27e210
--- 1/include/linux/kexec.h
--- 2/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@@ -219,46 -227,8 +219,46 @@@ struct crash_mem 
  extern int crash_exclude_mem_range(struct crash_mem *mem,
                                   unsigned long long mstart,
                                   unsigned long long mend);
- extern int crash_prepare_elf64_headers(struct crash_mem *mem, int kernel_map,
+ extern int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map,
                                       void **addr, unsigned long *sz);
 +
 +#ifndef arch_kexec_apply_relocations_add
 +/*
 + * arch_kexec_apply_relocations_add - apply relocations of type RELA
 + * @pi:               Purgatory to be relocated.
 + * @section:  Section relocations applying to.
 + * @relsec:   Section containing RELAs.
 + * @symtab:   Corresponding symtab.
 + *
 + * Return: 0 on success, negative errno on error.
 + */
 +static inline int
 +arch_kexec_apply_relocations_add(struct purgatory_info *pi, Elf_Shdr *section,
 +                               const Elf_Shdr *relsec, const Elf_Shdr *symtab)
 +{
 +      pr_err("RELA relocation unsupported.\n");
 +      return -ENOEXEC;
 +}
 +#endif
 +
 +#ifndef arch_kexec_apply_relocations
 +/*
 + * arch_kexec_apply_relocations - apply relocations of type REL
 + * @pi:               Purgatory to be relocated.
 + * @section:  Section relocations applying to.
 + * @relsec:   Section containing RELs.
 + * @symtab:   Corresponding symtab.
 + *
 + * Return: 0 on success, negative errno on error.
 + */
 +static inline int
 +arch_kexec_apply_relocations(struct purgatory_info *pi, Elf_Shdr *section,
 +                           const Elf_Shdr *relsec, const Elf_Shdr *symtab)
 +{
 +      pr_err("REL relocation unsupported.\n");
 +      return -ENOEXEC;
 +}
 +#endif
  #endif /* CONFIG_KEXEC_FILE */
  
  #ifdef CONFIG_KEXEC_ELF

diff --cc init/Kconfig
Simple merge

diff --cc kernel/kexec_file.c
Simple merge

diff --cc mm/readahead.c
Simple merge