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

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
  ...

3 files changed, 6 insertions, 44 deletions

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bd22578859d0..5f2448dc5a2b 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -332,10 +332,6 @@ config COMPAT
 	def_bool y
 	depends on 64BIT
 
-config SYSVIPC_COMPAT
-	def_bool y
-	depends on COMPAT && SYSVIPC
-
 config AUDIT_ARCH
 	def_bool y
 
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index c04f5a637c39..339d1b833fa7 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -11,16 +11,16 @@
 #define compat_mode_t compat_mode_t
 typedef u16	compat_mode_t;
 
+#define compat_ipc_pid_t compat_ipc_pid_t
+typedef u16	compat_ipc_pid_t;
+
+#define compat_ipc64_perm compat_ipc64_perm
+
 #include <asm-generic/compat.h>
 
-#define COMPAT_USER_HZ 		100
 #define COMPAT_UTS_MACHINE	"parisc\0\0"
 
-typedef u32	__compat_uid_t;
-typedef u32	__compat_gid_t;
-typedef u32	compat_dev_t;
 typedef u16	compat_nlink_t;
-typedef u16	compat_ipc_pid_t;
 
 struct compat_stat {
 	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
@@ -53,37 +53,6 @@ struct compat_stat {
 	u32			st_spare4[3];
 };
 
-struct compat_flock {
-	short			l_type;
-	short			l_whence;
-	compat_off_t		l_start;
-	compat_off_t		l_len;
-	compat_pid_t		l_pid;
-};
-
-struct compat_flock64 {
-	short			l_type;
-	short			l_whence;
-	compat_loff_t		l_start;
-	compat_loff_t		l_len;
-	compat_pid_t		l_pid;
-};
-
-struct compat_statfs {
-	s32		f_type;
-	s32		f_bsize;
-	s32		f_blocks;
-	s32		f_bfree;
-	s32		f_bavail;
-	s32		f_files;
-	s32		f_ffree;
-	__kernel_fsid_t	f_fsid;
-	s32		f_namelen;
-	s32		f_frsize;
-	s32		f_flags;
-	s32		f_spare[4];
-};
-
 struct compat_sigcontext {
 	compat_int_t sc_flags;
 	compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
@@ -93,10 +62,6 @@ struct compat_sigcontext {
 	compat_int_t sc_sar; /* cr11 */
 };
 
-#define COMPAT_RLIM_INFINITY 0xffffffff
-
-#define COMPAT_OFF_T_MAX	0x7fffffff
-
 struct compat_ipc64_perm {
 	compat_key_t key;
 	__compat_uid_t uid;
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index c033e427838f..e38f9a90ac15 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -162,6 +162,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 #define __ARCH_WANT_SYS_CLONE
 #define __ARCH_WANT_SYS_CLONE3
 #define __ARCH_WANT_COMPAT_SYS_SENDFILE
+#define __ARCH_WANT_COMPAT_STAT
 
 #ifdef CONFIG_64BIT
 #define __ARCH_WANT_SYS_TIME