Merge tag 'arm64-uapi' of git://git.kernel.org/pub/scm/linux/kernel/g…

…it/cmarinas/linux-aarch64

Pull arm64 uapi disintegration from Catalin Marinas:
 "UAPI headers for arm64 together with some clean-up to make it
  possible:
   - Do not export the COMPAT_* definitions to user
   - Simplify the compat unistd32.h definitions and remove the
     __SYSCALL_COMPAT guard
   - Disintegrate the arch/arm64/include/asm/* headers"

* tag 'arm64-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  UAPI: (Scripted) Disintegrate arch/arm64/include/asm
  arm64: Do not export the compat-specific definitions to the user
  arm64: Do not include asm/unistd32.h in asm/unistd.h
  arm64: Remove unused definitions from asm/unistd32.h

arch/arm64/include/asm/Kbuild

@@ -1,6 +1,4 @@
-include include/asm-generic/Kbuild.asm
 
-header-y += hwcap.h
 
 generic-y += bug.h
 generic-y += bugs.h

arch/arm64/include/asm/hwcap.h

@@ -16,11 +16,7 @@
 #ifndef __ASM_HWCAP_H
 #define __ASM_HWCAP_H
 
-/*
- * HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
- */
-#define HWCAP_FP		(1 << 0)
-#define HWCAP_ASIMD		(1 << 1)
+#include <uapi/asm/hwcap.h>
 
 #define COMPAT_HWCAP_HALF	(1 << 1)
 #define COMPAT_HWCAP_THUMB	(1 << 2)
@@ -35,7 +31,6 @@
 #define COMPAT_HWCAP_IDIVT	(1 << 18)
 #define COMPAT_HWCAP_IDIV	(COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
 
-#ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 /*
  * This yields a mask that user programs can use to figure out what
@@ -51,5 +46,3 @@
 extern unsigned int elf_hwcap;
 #endif
 #endif
-
-#endif

arch/arm64/include/asm/ptrace.h

@@ -19,9 +19,7 @@
 #ifndef __ASM_PTRACE_H
 #define __ASM_PTRACE_H
 
-#include <linux/types.h>
-
-#include <asm/hwcap.h>
+#include <uapi/asm/ptrace.h>
 
 /* AArch32-specific ptrace requests */
 #define COMPAT_PTRACE_GETREGS		12
@@ -32,80 +30,18 @@
 #define COMPAT_PTRACE_SETVFPREGS	28
 #define COMPAT_PTRACE_GETHBPREGS	29
 #define COMPAT_PTRACE_SETHBPREGS	30
-
-/*
- * PSR bits
- */
-#define PSR_MODE_EL0t	0x00000000
-#define PSR_MODE_EL1t	0x00000004
-#define PSR_MODE_EL1h	0x00000005
-#define PSR_MODE_EL2t	0x00000008
-#define PSR_MODE_EL2h	0x00000009
-#define PSR_MODE_EL3t	0x0000000c
-#define PSR_MODE_EL3h	0x0000000d
-#define PSR_MODE_MASK	0x0000000f
-
-/* AArch32 CPSR bits */
-#define PSR_MODE32_BIT		0x00000010
 #define COMPAT_PSR_MODE_USR	0x00000010
 #define COMPAT_PSR_T_BIT	0x00000020
 #define COMPAT_PSR_IT_MASK	0x0600fc00	/* If-Then execution state mask */
-
-/* AArch64 SPSR bits */
-#define PSR_F_BIT	0x00000040
-#define PSR_I_BIT	0x00000080
-#define PSR_A_BIT	0x00000100
-#define PSR_D_BIT	0x00000200
-#define PSR_Q_BIT	0x08000000
-#define PSR_V_BIT	0x10000000
-#define PSR_C_BIT	0x20000000
-#define PSR_Z_BIT	0x40000000
-#define PSR_N_BIT	0x80000000
-
-/*
- * Groups of PSR bits
- */
-#define PSR_f		0xff000000	/* Flags		*/
-#define PSR_s		0x00ff0000	/* Status		*/
-#define PSR_x		0x0000ff00	/* Extension		*/
-#define PSR_c		0x000000ff	/* Control		*/
-
 /*
  * These are 'magic' values for PTRACE_PEEKUSR that return info about where a
  * process is located in memory.
  */
-#define PT_TEXT_ADDR		0x10000
-#define PT_DATA_ADDR		0x10004
-#define PT_TEXT_END_ADDR	0x10008
-
+#define COMPAT_PT_TEXT_ADDR		0x10000
+#define COMPAT_PT_DATA_ADDR		0x10004
+#define COMPAT_PT_TEXT_END_ADDR		0x10008
 #ifndef __ASSEMBLY__
 
-/*
- * User structures for general purpose, floating point and debug registers.
- */
-struct user_pt_regs {
-	__u64		regs[31];
-	__u64		sp;
-	__u64		pc;
-	__u64		pstate;
-};
-
-struct user_fpsimd_state {
-	__uint128_t	vregs[32];
-	__u32		fpsr;
-	__u32		fpcr;
-};
-
-struct user_hwdebug_state {
-	__u32		dbg_info;
-	struct {
-		__u64	addr;
-		__u32	ctrl;
-	}		dbg_regs[16];
-};
-
-#ifdef __KERNEL__
-
 /* sizeof(struct user) for AArch32 */
 #define COMPAT_USER_SZ	296
 /* AArch32 uses x13 as the stack pointer... */
@@ -200,8 +136,5 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 
 extern int aarch32_break_trap(struct pt_regs *regs);
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASSEMBLY__ */
-
 #endif

arch/arm64/include/asm/sigcontext.h

@@ -16,44 +16,8 @@
 #ifndef __ASM_SIGCONTEXT_H
 #define __ASM_SIGCONTEXT_H
 
-#include <linux/types.h>
+#include <uapi/asm/sigcontext.h>
 
-/*
- * Signal context structure - contains all info to do with the state
- * before the signal handler was invoked.
- */
-struct sigcontext {
-	__u64 fault_address;
-	/* AArch64 registers */
-	__u64 regs[31];
-	__u64 sp;
-	__u64 pc;
-	__u64 pstate;
-	/* 4K reserved for FP/SIMD state and future expansion */
-	__u8 __reserved[4096] __attribute__((__aligned__(16)));
-};
-
-/*
- * Header to be used at the beginning of structures extending the user
- * context. Such structures must be placed after the rt_sigframe on the stack
- * and be 16-byte aligned. The last structure must be a dummy one with the
- * magic and size set to 0.
- */
-struct _aarch64_ctx {
-	__u32 magic;
-	__u32 size;
-};
-
-#define FPSIMD_MAGIC	0x46508001
-
-struct fpsimd_context {
-	struct _aarch64_ctx head;
-	__u32 fpsr;
-	__u32 fpcr;
-	__uint128_t vregs[32];
-};
-
-#ifdef __KERNEL__
 /*
  * Auxiliary context saved in the sigcontext.__reserved array. Not exported to
  * user space as it will change with the addition of new context. User space
@@ -65,5 +29,3 @@ struct aux_context {
 	struct _aarch64_ctx end;
 };
 #endif
-
-#endif

arch/arm64/include/asm/stat.h

@@ -16,9 +16,8 @@
 #ifndef __ASM_STAT_H
 #define __ASM_STAT_H
 
-#include <asm-generic/stat.h>
+#include <uapi/asm/stat.h>
 
-#ifdef __KERNEL__
 #ifdef CONFIG_COMPAT
 
 #include <asm/compat.h>
@@ -60,5 +59,3 @@ struct stat64 {
 
 #endif
 #endif
-
-#endif

arch/arm64/include/asm/unistd.h

@@ -13,13 +13,17 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#ifndef __SYSCALL_COMPAT
-#include <asm-generic/unistd.h>
-#endif
-
-#ifdef __KERNEL__
 #ifdef CONFIG_COMPAT
-#include <asm/unistd32.h>
-#endif
+#define __ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+#define __ARCH_WANT_COMPAT_STAT64
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_COMPAT_SYS_SENDFILE
 #endif
+#include <uapi/asm/unistd.h>