From 2d2b308a8b7d0aeeadeabd8d7f329bb8200f2e2b Mon Sep 17 00:00:00 2001
From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Date: Thu, 11 Jun 2020 09:58:11 +0200
Subject: sh: Implement __get_user_u64() required for 64-bit get_user()

Trying to build the kernel with CONFIG_INFINIBAND_USER_ACCESS enabled fails

     ERROR: "__get_user_unknown" [drivers/infiniband/core/ib_uverbs.ko] undefined!

with on SH since the kernel misses a 64-bit implementation of get_user().

Implement the missing 64-bit get_user() as __get_user_u64(), matching the
already existing __put_user_u64() which implements the 64-bit put_user().

Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/uaccess_32.h | 53 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/uaccess_32.h b/arch/sh/include/asm/uaccess_32.h
index 624cf55acc27..5d7ddc092afd 100644
--- a/arch/sh/include/asm/uaccess_32.h
+++ b/arch/sh/include/asm/uaccess_32.h
@@ -26,6 +26,9 @@ do {								\
 	case 4:							\
 		__get_user_asm(x, ptr, retval, "l");		\
 		break;						\
+	case 8:							\
+		__get_user_u64(x, ptr, retval);			\
+		break;						\
 	default:						\
 		__get_user_unknown();				\
 		break;						\
@@ -66,6 +69,56 @@ do {							\
 
 extern void __get_user_unknown(void);
 
+#if defined(CONFIG_CPU_LITTLE_ENDIAN)
+#define __get_user_u64(x, addr, err) \
+({ \
+__asm__ __volatile__( \
+	"1:\n\t" \
+	"mov.l	%2,%R1\n\t" \
+	"mov.l	%T2,%S1\n\t" \
+	"2:\n" \
+	".section	.fixup,\"ax\"\n" \
+	"3:\n\t" \
+	"mov  #0,%R1\n\t"   \
+	"mov  #0,%S1\n\t"   \
+	"mov.l	4f, %0\n\t" \
+	"jmp	@%0\n\t" \
+	" mov	%3, %0\n\t" \
+	".balign	4\n" \
+	"4:	.long	2b\n\t" \
+	".previous\n" \
+	".section	__ex_table,\"a\"\n\t" \
+	".long	1b, 3b\n\t" \
+	".long	1b + 2, 3b\n\t" \
+	".previous" \
+	:"=&r" (err), "=&r" (x) \
+	:"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
+#else
+#define __get_user_u64(x, addr, err) \
+({ \
+__asm__ __volatile__( \
+	"1:\n\t" \
+	"mov.l	%2,%S1\n\t" \
+	"mov.l	%T2,%R1\n\t" \
+	"2:\n" \
+	".section	.fixup,\"ax\"\n" \
+	"3:\n\t" \
+	"mov  #0,%S1\n\t"   \
+	"mov  #0,%R1\n\t"   \
+	"mov.l	4f, %0\n\t" \
+	"jmp	@%0\n\t" \
+	" mov	%3, %0\n\t" \
+	".balign	4\n" \
+	"4:	.long	2b\n\t" \
+	".previous\n" \
+	".section	__ex_table,\"a\"\n\t" \
+	".long	1b, 3b\n\t" \
+	".long	1b + 2, 3b\n\t" \
+	".previous" \
+	:"=&r" (err), "=&r" (x) \
+	:"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
+#endif
+
 #define __put_user_size(x,ptr,size,retval)		\
 do {							\
 	retval = 0;					\
-- 
cgit v1.2.3


From 7dfaa9ea56e9e68b889d6676aa51a246f32c1857 Mon Sep 17 00:00:00 2001
From: Flavio Suligoi <f.suligoi@asem.it>
Date: Mon, 15 Jun 2020 14:09:40 +0200
Subject: arch: sh: smc37c93x: fix spelling mistake

Fix typo: "triger" --> "trigger"

Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/smc37c93x.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/smc37c93x.h b/arch/sh/include/asm/smc37c93x.h
index f054c30a171a..891f2f8f2fd0 100644
--- a/arch/sh/include/asm/smc37c93x.h
+++ b/arch/sh/include/asm/smc37c93x.h
@@ -112,8 +112,8 @@ typedef struct uart_reg {
 #define FCR_RFRES	0x0200	/* Receiver FIFO reset */
 #define FCR_TFRES	0x0400	/* Transmitter FIFO reset */
 #define FCR_DMA		0x0800	/* DMA mode select */
-#define FCR_RTL		0x4000	/* Receiver triger (LSB) */
-#define FCR_RTM		0x8000	/* Receiver triger (MSB) */
+#define FCR_RTL		0x4000	/* Receiver trigger (LSB) */
+#define FCR_RTM		0x8000	/* Receiver trigger (MSB) */
 
 /* Line Control Register */
 
-- 
cgit v1.2.3


From fd722f25a6e4aecefbc58047a690076e57015197 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 17 Jun 2020 16:36:32 +0200
Subject: Revert "sh: add loglvl to printk_address()"

This reverts commit 2deebe4d56d638269a4a728086d64de5734b460a.

printk_address() is always used as a continuation of the previous
logging, hence it should not include a log level.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/kdebug.h | 3 +--
 arch/sh/kernel/dumpstack.c   | 6 +++---
 arch/sh/mm/fault.c           | 2 +-
 3 files changed, 5 insertions(+), 6 deletions(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/kdebug.h b/arch/sh/include/asm/kdebug.h
index 960545306afa..de8693fabb1d 100644
--- a/arch/sh/include/asm/kdebug.h
+++ b/arch/sh/include/asm/kdebug.h
@@ -12,8 +12,7 @@ enum die_val {
 };
 
 /* arch/sh/kernel/dumpstack.c */
-extern void printk_address(unsigned long address, int reliable,
-			   const char *loglvl);
+extern void printk_address(unsigned long address, int reliable);
 extern void dump_mem(const char *str, const char *loglvl,
 		     unsigned long bottom, unsigned long top);
 
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index a13c045804ed..ad548fc97635 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -44,9 +44,9 @@ void dump_mem(const char *str, const char *loglvl,
 	}
 }
 
-void printk_address(unsigned long address, int reliable, const char *loglvl)
+void printk_address(unsigned long address, int reliable)
 {
-	printk("%s [<%p>] %s%pS\n", loglvl, (void *) address,
+	printk(" [<%p>] %s%pS\n", (void *) address,
 			reliable ? "" : "? ", (void *) address);
 }
 
@@ -118,7 +118,7 @@ static int print_trace_stack(void *data, char *name)
  */
 static void print_trace_address(void *data, unsigned long addr, int reliable)
 {
-	printk_address(addr, reliable, (char *)data);
+	printk_address(addr, reliable);
 }
 
 static const struct stacktrace_ops print_trace_ops = {
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index acd1c7599498..92b1ce105f4b 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -213,7 +213,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long address)
 				     : "paging request",
 		 address);
 	pr_alert("PC:");
-	printk_address(regs->pc, 1, KERN_ALERT);
+	printk_address(regs->pc, 1);
 
 	show_pte(NULL, address);
 }
-- 
cgit v1.2.3


From c0735ae9a00642b514bade90456ad6a828dcc6df Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 18 Jun 2020 09:59:37 +0200
Subject: sh: stacktrace: Remove stacktrace_ops.stack()

The SH implementation never called stacktrace_ops.stack().
Presumably this was copied from the x86 implementation.

Hence remove the method, and all implementations (most of them are
dummies).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/stacktrace.h | 2 --
 arch/sh/kernel/dumpstack.c       | 7 -------
 arch/sh/kernel/perf_callchain.c  | 6 ------
 arch/sh/kernel/stacktrace.c      | 7 -------
 arch/sh/oprofile/backtrace.c     | 7 -------
 5 files changed, 29 deletions(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/stacktrace.h b/arch/sh/include/asm/stacktrace.h
index 50c173c0b9f5..4f98cdc64ec5 100644
--- a/arch/sh/include/asm/stacktrace.h
+++ b/arch/sh/include/asm/stacktrace.h
@@ -12,8 +12,6 @@
 
 struct stacktrace_ops {
 	void (*address)(void *data, unsigned long address, int reliable);
-	/* On negative return stop dumping */
-	int (*stack)(void *data, char *name);
 };
 
 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index 0a69588e343f..758a6c89e911 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -107,12 +107,6 @@ stack_reader_dump(struct task_struct *task, struct pt_regs *regs,
 	}
 }
 
-static int print_trace_stack(void *data, char *name)
-{
-	printk("%s <%s> ", (char *)data, name);
-	return 0;
-}
-
 /*
  * Print one address/symbol entries per line.
  */
@@ -123,7 +117,6 @@ static void print_trace_address(void *data, unsigned long addr, int reliable)
 }
 
 static const struct stacktrace_ops print_trace_ops = {
-	.stack = print_trace_stack,
 	.address = print_trace_address,
 };
 
diff --git a/arch/sh/kernel/perf_callchain.c b/arch/sh/kernel/perf_callchain.c
index 6281f2fdf9ca..c9d3aa18732d 100644
--- a/arch/sh/kernel/perf_callchain.c
+++ b/arch/sh/kernel/perf_callchain.c
@@ -11,11 +11,6 @@
 #include <asm/unwinder.h>
 #include <asm/ptrace.h>
 
-static int callchain_stack(void *data, char *name)
-{
-	return 0;
-}
-
 static void callchain_address(void *data, unsigned long addr, int reliable)
 {
 	struct perf_callchain_entry_ctx *entry = data;
@@ -25,7 +20,6 @@ static void callchain_address(void *data, unsigned long addr, int reliable)
 }
 
 static const struct stacktrace_ops callchain_ops = {
-	.stack		= callchain_stack,
 	.address	= callchain_address,
 };
 
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index 2950b19ad077..daf0b53ee066 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -15,11 +15,6 @@
 #include <asm/ptrace.h>
 #include <asm/stacktrace.h>
 
-static int save_stack_stack(void *data, char *name)
-{
-	return 0;
-}
-
 /*
  * Save stack-backtrace addresses into a stack_trace buffer.
  */
@@ -40,7 +35,6 @@ static void save_stack_address(void *data, unsigned long addr, int reliable)
 }
 
 static const struct stacktrace_ops save_stack_ops = {
-	.stack = save_stack_stack,
 	.address = save_stack_address,
 };
 
@@ -73,7 +67,6 @@ save_stack_address_nosched(void *data, unsigned long addr, int reliable)
 }
 
 static const struct stacktrace_ops save_stack_ops_nosched = {
-	.stack = save_stack_stack,
 	.address = save_stack_address_nosched,
 };
 
diff --git a/arch/sh/oprofile/backtrace.c b/arch/sh/oprofile/backtrace.c
index f1205f92631d..cc16cf86cd92 100644
--- a/arch/sh/oprofile/backtrace.c
+++ b/arch/sh/oprofile/backtrace.c
@@ -19,12 +19,6 @@
 #include <asm/sections.h>
 #include <asm/stacktrace.h>
 
-static int backtrace_stack(void *data, char *name)
-{
-	/* Yes, we want all stacks */
-	return 0;
-}
-
 static void backtrace_address(void *data, unsigned long addr, int reliable)
 {
 	unsigned int *depth = data;
@@ -34,7 +28,6 @@ static void backtrace_address(void *data, unsigned long addr, int reliable)
 }
 
 static struct stacktrace_ops backtrace_ops = {
-	.stack = backtrace_stack,
 	.address = backtrace_address,
 };
 
-- 
cgit v1.2.3


From e12b090eae6ac3b18f42673a4b0fef6e61b63cac Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 14 Jul 2020 14:18:49 +0200
Subject: sh: remove __KERNEL__ ifdefs from non-UAPI headers

There is no point in having __KERNEL__ ifdefs in headers not exported to
userspace.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/adc.h          | 2 --
 arch/sh/include/asm/addrspace.h    | 3 ---
 arch/sh/include/asm/bitops.h       | 4 ----
 arch/sh/include/asm/cache.h        | 2 --
 arch/sh/include/asm/cacheflush.h   | 3 ---
 arch/sh/include/asm/dma.h          | 2 --
 arch/sh/include/asm/elf.h          | 2 --
 arch/sh/include/asm/freq.h         | 2 --
 arch/sh/include/asm/futex.h        | 3 ---
 arch/sh/include/asm/io.h           | 3 ---
 arch/sh/include/asm/mmu_context.h  | 2 --
 arch/sh/include/asm/mmzone.h       | 3 ---
 arch/sh/include/asm/pci.h          | 4 ----
 arch/sh/include/asm/processor_32.h | 2 --
 arch/sh/include/asm/sparsemem.h    | 3 ---
 arch/sh/include/asm/string_32.h    | 4 ----
 arch/sh/include/asm/syscalls_32.h  | 3 ---
 arch/sh/include/asm/thread_info.h  | 5 -----
 arch/sh/include/asm/watchdog.h     | 2 --
 19 files changed, 54 deletions(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/adc.h b/arch/sh/include/asm/adc.h
index 99ec66849559..feccfe639e38 100644
--- a/arch/sh/include/asm/adc.h
+++ b/arch/sh/include/asm/adc.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ADC_H
 #define __ASM_ADC_H
-#ifdef __KERNEL__
 /*
  * Copyright (C) 2004  Andriy Skulysh
  */
@@ -10,5 +9,4 @@
 
 int adc_single(unsigned int channel);
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_ADC_H */
diff --git a/arch/sh/include/asm/addrspace.h b/arch/sh/include/asm/addrspace.h
index 34bfbcddcce0..468fba333e89 100644
--- a/arch/sh/include/asm/addrspace.h
+++ b/arch/sh/include/asm/addrspace.h
@@ -7,8 +7,6 @@
 #ifndef __ASM_SH_ADDRSPACE_H
 #define __ASM_SH_ADDRSPACE_H
 
-#ifdef __KERNEL__
-
 #include <cpu/addrspace.h>
 
 /* If this CPU supports segmentation, hook up the helpers */
@@ -62,5 +60,4 @@
 #define P3_ADDR_MAX		P4SEG
 #endif
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_ADDRSPACE_H */
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index 445dd14c448a..450b5854d7c6 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_BITOPS_H
 #define __ASM_SH_BITOPS_H
 
-#ifdef __KERNEL__
-
 #ifndef _LINUX_BITOPS_H
 #error only <linux/bitops.h> can be included directly
 #endif
@@ -71,6 +69,4 @@ static inline unsigned long __ffs(unsigned long word)
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASM_SH_BITOPS_H */
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
index 2408ac4873aa..a293343456af 100644
--- a/arch/sh/include/asm/cache.h
+++ b/arch/sh/include/asm/cache.h
@@ -8,7 +8,6 @@
  */
 #ifndef __ASM_SH_CACHE_H
 #define __ASM_SH_CACHE_H
-#ifdef __KERNEL__
 
 #include <linux/init.h>
 #include <cpu/cache.h>
@@ -44,5 +43,4 @@ struct cache_info {
 	unsigned long flags;
 };
 #endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHE_H */
diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index fe7400079b97..4486a865ff62 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_CACHEFLUSH_H
 #define __ASM_SH_CACHEFLUSH_H
 
-#ifdef __KERNEL__
-
 #include <linux/mm.h>
 
 /*
@@ -109,5 +107,4 @@ static inline void *sh_cacheop_vaddr(void *vaddr)
 	return vaddr;
 }
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/arch/sh/include/asm/dma.h b/arch/sh/include/asm/dma.h
index 4d5a21a891c0..17d23ae98c77 100644
--- a/arch/sh/include/asm/dma.h
+++ b/arch/sh/include/asm/dma.h
@@ -6,7 +6,6 @@
  */
 #ifndef __ASM_SH_DMA_H
 #define __ASM_SH_DMA_H
-#ifdef __KERNEL__
 
 #include <linux/spinlock.h>
 #include <linux/wait.h>
@@ -144,5 +143,4 @@ extern int isa_dma_bridge_buggy;
 #define isa_dma_bridge_buggy	(0)
 #endif
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_DMA_H */
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h
index 7661fb5d548a..2862d6d1cb64 100644
--- a/arch/sh/include/asm/elf.h
+++ b/arch/sh/include/asm/elf.h
@@ -90,7 +90,6 @@ typedef struct user_fpu_struct elf_fpregset_t;
 #endif
 #define ELF_ARCH	EM_SH
 
-#ifdef __KERNEL__
 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
@@ -209,5 +208,4 @@ do {								\
 	NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape);		\
 } while (0)
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_ELF_H */
diff --git a/arch/sh/include/asm/freq.h b/arch/sh/include/asm/freq.h
index 18133bf83738..87c23621b7ae 100644
--- a/arch/sh/include/asm/freq.h
+++ b/arch/sh/include/asm/freq.h
@@ -6,9 +6,7 @@
  */
 #ifndef __ASM_SH_FREQ_H
 #define __ASM_SH_FREQ_H
-#ifdef __KERNEL__
 
 #include <cpu/freq.h>
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_FREQ_H */
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index b39cda09fb95..b70f3fce6ed7 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_FUTEX_H
 #define __ASM_SH_FUTEX_H
 
-#ifdef __KERNEL__
-
 #include <linux/futex.h>
 #include <linux/uaccess.h>
 #include <asm/errno.h>
@@ -71,5 +69,4 @@ static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
 	return ret;
 }
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_FUTEX_H */
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 26f0f9b4658b..1fd06ef6a194 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -20,7 +20,6 @@
 #include <linux/pgtable.h>
 #include <asm-generic/iomap.h>
 
-#ifdef __KERNEL__
 #define __IO_PREFIX     generic
 #include <asm/io_generic.h>
 #include <asm/io_trapped.h>
@@ -380,6 +379,4 @@ static inline int iounmap_fixed(void __iomem *addr) { return -EINVAL; }
 int valid_phys_addr_range(phys_addr_t addr, size_t size);
 int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASM_SH_IO_H */
diff --git a/arch/sh/include/asm/mmu_context.h b/arch/sh/include/asm/mmu_context.h
index 48e67d544d53..f664e51e8a15 100644
--- a/arch/sh/include/asm/mmu_context.h
+++ b/arch/sh/include/asm/mmu_context.h
@@ -8,7 +8,6 @@
 #ifndef __ASM_SH_MMU_CONTEXT_H
 #define __ASM_SH_MMU_CONTEXT_H
 
-#ifdef __KERNEL__
 #include <cpu/mmu_context.h>
 #include <asm/tlbflush.h>
 #include <linux/uaccess.h>
@@ -177,5 +176,4 @@ static inline void disable_mmu(void)
 #define disable_mmu()	do { } while (0)
 #endif
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_MMU_CONTEXT_H */
diff --git a/arch/sh/include/asm/mmzone.h b/arch/sh/include/asm/mmzone.h
index cbaee1d1b673..6552a088dc97 100644
--- a/arch/sh/include/asm/mmzone.h
+++ b/arch/sh/include/asm/mmzone.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_MMZONE_H
 #define __ASM_SH_MMZONE_H
 
-#ifdef __KERNEL__
-
 #ifdef CONFIG_NEED_MULTIPLE_NODES
 #include <linux/numa.h>
 
@@ -44,5 +42,4 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
 /* arch/sh/mm/init.c */
 void __init allocate_pgdat(unsigned int nid);
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_MMZONE_H */
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 10a36b1cf2ea..ad22e88c6657 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_PCI_H
 #define __ASM_SH_PCI_H
 
-#ifdef __KERNEL__
-
 /* Can be used to override the logic in pci_scan_bus for skipping
    already-configured bus numbers - to be used for buggy BIOSes
    or architectures with incomplete PCI setup by the loader */
@@ -96,6 +94,4 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 	return channel ? 15 : 14;
 }
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_PCI_H */
-
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
index d44409413418..aa92cc933889 100644
--- a/arch/sh/include/asm/processor_32.h
+++ b/arch/sh/include/asm/processor_32.h
@@ -8,7 +8,6 @@
 
 #ifndef __ASM_SH_PROCESSOR_32_H
 #define __ASM_SH_PROCESSOR_32_H
-#ifdef __KERNEL__
 
 #include <linux/compiler.h>
 #include <linux/linkage.h>
@@ -203,5 +202,4 @@ static inline void prefetchw(const void *x)
 }
 #endif
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_PROCESSOR_32_H */
diff --git a/arch/sh/include/asm/sparsemem.h b/arch/sh/include/asm/sparsemem.h
index 4eb899751e45..ed287c4980bc 100644
--- a/arch/sh/include/asm/sparsemem.h
+++ b/arch/sh/include/asm/sparsemem.h
@@ -2,7 +2,6 @@
 #ifndef __ASM_SH_SPARSEMEM_H
 #define __ASM_SH_SPARSEMEM_H
 
-#ifdef __KERNEL__
 /*
  * SECTION_SIZE_BITS		2^N: how big each section will be
  * MAX_PHYSADDR_BITS		2^N: how much physical address space we have
@@ -12,6 +11,4 @@
 #define MAX_PHYSADDR_BITS	32
 #define MAX_PHYSMEM_BITS	32
 
-#endif
-
 #endif /* __ASM_SH_SPARSEMEM_H */
diff --git a/arch/sh/include/asm/string_32.h b/arch/sh/include/asm/string_32.h
index 3558b1d7123e..778589e4a99d 100644
--- a/arch/sh/include/asm/string_32.h
+++ b/arch/sh/include/asm/string_32.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_STRING_H
 #define __ASM_SH_STRING_H
 
-#ifdef __KERNEL__
-
 /*
  * Copyright (C) 1999 Niibe Yutaka
  * But consider these trivial functions to be public domain.
@@ -127,6 +125,4 @@ extern void *memchr(const void *__s, int __c, size_t __n);
 #define __HAVE_ARCH_STRLEN
 extern size_t strlen(const char *);
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASM_SH_STRING_H */
diff --git a/arch/sh/include/asm/syscalls_32.h b/arch/sh/include/asm/syscalls_32.h
index 9f9faf63b48c..5c555b864fe0 100644
--- a/arch/sh/include/asm/syscalls_32.h
+++ b/arch/sh/include/asm/syscalls_32.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_SH_SYSCALLS_32_H
 #define __ASM_SH_SYSCALLS_32_H
 
-#ifdef __KERNEL__
-
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/types.h>
@@ -26,5 +24,4 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
 asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
 				 unsigned long thread_info_flags);
 
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_SYSCALLS_32_H */
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 6404be69d5fa..243ea5150aa0 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -10,8 +10,6 @@
  *  Copyright (C) 2002  David Howells (dhowells@redhat.com)
  *  - Incorporating suggestions made by Linus Torvalds and Dave Miller
  */
-#ifdef __KERNEL__
-
 #include <asm/page.h>
 
 /*
@@ -170,7 +168,4 @@ static inline unsigned int get_thread_fault_code(void)
 }
 
 #endif	/* !__ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
 #endif /* __ASM_SH_THREAD_INFO_H */
diff --git a/arch/sh/include/asm/watchdog.h b/arch/sh/include/asm/watchdog.h
index cecd0fc507f9..b9ca4c99f046 100644
--- a/arch/sh/include/asm/watchdog.h
+++ b/arch/sh/include/asm/watchdog.h
@@ -8,7 +8,6 @@
  */
 #ifndef __ASM_SH_WATCHDOG_H
 #define __ASM_SH_WATCHDOG_H
-#ifdef __KERNEL__
 
 #include <linux/types.h>
 #include <linux/io.h>
@@ -157,5 +156,4 @@ static inline void sh_wdt_write_csr(__u8 val)
 	__raw_writew((WTCSR_HIGH << 8) | (__u16)val, WTCSR);
 }
 #endif /* CONFIG_CPU_SUBTYPE_SH7785 || CONFIG_CPU_SUBTYPE_SH7780 */
-#endif /* __KERNEL__ */
 #endif /* __ASM_SH_WATCHDOG_H */
-- 
cgit v1.2.3


From 3eef6b74d9fecf18b03db26584cc66928972a60b Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 14 Jul 2020 14:18:50 +0200
Subject: sh: move ioremap_fixed details out of <asm/io.h>

ioremap_fixed is an internal implementation detail and should not be
exposed to drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/io.h   | 16 ----------------
 arch/sh/mm/init.c          |  1 +
 arch/sh/mm/ioremap.c       |  1 +
 arch/sh/mm/ioremap.h       | 23 +++++++++++++++++++++++
 arch/sh/mm/ioremap_fixed.c |  1 +
 5 files changed, 26 insertions(+), 16 deletions(-)
 create mode 100644 arch/sh/mm/ioremap.h

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 1fd06ef6a194..357a7e0c86d6 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -346,22 +346,6 @@ ioremap_prot(phys_addr_t offset, unsigned long size, unsigned long flags)
 }
 #endif
 
-#ifdef CONFIG_IOREMAP_FIXED
-extern void __iomem *ioremap_fixed(phys_addr_t, unsigned long, pgprot_t);
-extern int iounmap_fixed(void __iomem *);
-extern void ioremap_fixed_init(void);
-#else
-static inline void __iomem *
-ioremap_fixed(phys_addr_t phys_addr, unsigned long size, pgprot_t prot)
-{
-	BUG();
-	return NULL;
-}
-
-static inline void ioremap_fixed_init(void) { }
-static inline int iounmap_fixed(void __iomem *addr) { return -EINVAL; }
-#endif
-
 #define ioremap_uc	ioremap
 
 /*
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index a70ba0fdd0b3..da7ea48f9439 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -28,6 +28,7 @@
 #include <asm/setup.h>
 #include <asm/cache.h>
 #include <linux/sizes.h>
+#include "ioremap.h"
 
 pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index f6d02246d665..d9ec85b6bb21 100644
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -24,6 +24,7 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/mmu.h>
+#include "ioremap.h"
 
 /*
  * Remap an arbitrary physical address space into the kernel virtual
diff --git a/arch/sh/mm/ioremap.h b/arch/sh/mm/ioremap.h
new file mode 100644
index 000000000000..f2544e721a35
--- /dev/null
+++ b/arch/sh/mm/ioremap.h
@@ -0,0 +1,23 @@
+#ifndef _SH_MM_IORMEMAP_H
+#define _SH_MM_IORMEMAP_H 1
+
+#ifdef CONFIG_IOREMAP_FIXED
+void __iomem *ioremap_fixed(phys_addr_t, unsigned long, pgprot_t);
+int iounmap_fixed(void __iomem *);
+void ioremap_fixed_init(void);
+#else
+static inline void __iomem *
+ioremap_fixed(phys_addr_t phys_addr, unsigned long size, pgprot_t prot)
+{
+	BUG();
+	return NULL;
+}
+static inline void ioremap_fixed_init(void)
+{
+}
+static inline int iounmap_fixed(void __iomem *addr)
+{
+	return -EINVAL;
+}
+#endif /* CONFIG_IOREMAP_FIXED */
+#endif /* _SH_MM_IORMEMAP_H */
diff --git a/arch/sh/mm/ioremap_fixed.c b/arch/sh/mm/ioremap_fixed.c
index 07e744d75fa0..1914b79d1c53 100644
--- a/arch/sh/mm/ioremap_fixed.c
+++ b/arch/sh/mm/ioremap_fixed.c
@@ -24,6 +24,7 @@
 #include <asm/tlbflush.h>
 #include <asm/mmu.h>
 #include <asm/mmu_context.h>
+#include "ioremap.h"
 
 struct ioremap_map {
 	void __iomem *addr;
-- 
cgit v1.2.3


From 13f1fc870dd747131f21ba6f20dc0d81cc5d4474 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 14 Jul 2020 14:18:51 +0200
Subject: sh: move the ioremap implementation out of line

Move the internal implementation details of ioremap out of line, no need
to expose any of this to drivers for a slow path API.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/io.h | 101 +++++++----------------------------------------
 arch/sh/mm/ioremap.c     |  53 +++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 86 deletions(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 357a7e0c86d6..da08a61a2f7d 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -242,109 +242,38 @@ unsigned long long poke_real_address_q(unsigned long long addr,
 #define phys_to_virt(address)	(__va(address))
 #endif
 
-/*
- * On 32-bit SH, we traditionally have the whole physical address space
- * mapped at all times (as MIPS does), so "ioremap()" and "iounmap()" do
- * not need to do anything but place the address in the proper segment.
- * This is true for P1 and P2 addresses, as well as some P3 ones.
- * However, most of the P3 addresses and newer cores using extended
- * addressing need to map through page tables, so the ioremap()
- * implementation becomes a bit more complicated.
- *
- * See arch/sh/mm/ioremap.c for additional notes on this.
- *
- * We cheat a bit and always return uncachable areas until we've fixed
- * the drivers to handle caching properly.
- *
- * On the SH-5 the concept of segmentation in the 1:1 PXSEG sense simply
- * doesn't exist, so everything must go through page tables.
- */
 #ifdef CONFIG_MMU
+void iounmap(void __iomem *addr);
 void __iomem *__ioremap_caller(phys_addr_t offset, unsigned long size,
 			       pgprot_t prot, void *caller);
-void iounmap(void __iomem *addr);
-
-static inline void __iomem *
-__ioremap(phys_addr_t offset, unsigned long size, pgprot_t prot)
-{
-	return __ioremap_caller(offset, size, prot, __builtin_return_address(0));
-}
-
-static inline void __iomem *
-__ioremap_29bit(phys_addr_t offset, unsigned long size, pgprot_t prot)
-{
-#ifdef CONFIG_29BIT
-	phys_addr_t last_addr = offset + size - 1;
-
-	/*
-	 * For P1 and P2 space this is trivial, as everything is already
-	 * mapped. Uncached access for P1 addresses are done through P2.
-	 * In the P3 case or for addresses outside of the 29-bit space,
-	 * mapping must be done by the PMB or by using page tables.
-	 */
-	if (likely(PXSEG(offset) < P3SEG && PXSEG(last_addr) < P3SEG)) {
-		u64 flags = pgprot_val(prot);
-
-		/*
-		 * Anything using the legacy PTEA space attributes needs
-		 * to be kicked down to page table mappings.
-		 */
-		if (unlikely(flags & _PAGE_PCC_MASK))
-			return NULL;
-		if (unlikely(flags & _PAGE_CACHABLE))
-			return (void __iomem *)P1SEGADDR(offset);
-
-		return (void __iomem *)P2SEGADDR(offset);
-	}
-
-	/* P4 above the store queues are always mapped. */
-	if (unlikely(offset >= P3_ADDR_MAX))
-		return (void __iomem *)P4SEGADDR(offset);
-#endif
-
-	return NULL;
-}
-
-static inline void __iomem *
-__ioremap_mode(phys_addr_t offset, unsigned long size, pgprot_t prot)
-{
-	void __iomem *ret;
-
-	ret = __ioremap_trapped(offset, size);
-	if (ret)
-		return ret;
-
-	ret = __ioremap_29bit(offset, size, prot);
-	if (ret)
-		return ret;
-
-	return __ioremap(offset, size, prot);
-}
-#else
-#define __ioremap(offset, size, prot)		((void __iomem *)(offset))
-#define __ioremap_mode(offset, size, prot)	((void __iomem *)(offset))
-static inline void iounmap(void __iomem *addr) {}
-#endif /* CONFIG_MMU */
 
 static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
 {
-	return __ioremap_mode(offset, size, PAGE_KERNEL_NOCACHE);
+	return __ioremap_caller(offset, size, PAGE_KERNEL_NOCACHE,
+			__builtin_return_address(0));
 }
 
 static inline void __iomem *
 ioremap_cache(phys_addr_t offset, unsigned long size)
 {
-	return __ioremap_mode(offset, size, PAGE_KERNEL);
+	return __ioremap_caller(offset, size, PAGE_KERNEL,
+			__builtin_return_address(0));
 }
 #define ioremap_cache ioremap_cache
 
 #ifdef CONFIG_HAVE_IOREMAP_PROT
-static inline void __iomem *
-ioremap_prot(phys_addr_t offset, unsigned long size, unsigned long flags)
+static inline void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
+		unsigned long flags)
 {
-	return __ioremap_mode(offset, size, __pgprot(flags));
+	return __ioremap_caller(offset, size, __pgprot(flags),
+			__builtin_return_address(0));
 }
-#endif
+#endif /* CONFIG_HAVE_IOREMAP_PROT */
+
+#else /* CONFIG_MMU */
+#define iounmap(addr)		do { } while (0)
+#define ioremap(offset, size)	((void __iomem *)(unsigned long)(offset))
+#endif /* CONFIG_MMU */
 
 #define ioremap_uc	ioremap
 
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index d9ec85b6bb21..69e55939e48a 100644
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -26,6 +26,51 @@
 #include <asm/mmu.h>
 #include "ioremap.h"
 
+/*
+ * On 32-bit SH, we traditionally have the whole physical address space mapped
+ * at all times (as MIPS does), so "ioremap()" and "iounmap()" do not need to do
+ * anything but place the address in the proper segment.  This is true for P1
+ * and P2 addresses, as well as some P3 ones.  However, most of the P3 addresses
+ * and newer cores using extended addressing need to map through page tables, so
+ * the ioremap() implementation becomes a bit more complicated.
+ */
+#ifdef CONFIG_29BIT
+static void __iomem *
+__ioremap_29bit(phys_addr_t offset, unsigned long size, pgprot_t prot)
+{
+	phys_addr_t last_addr = offset + size - 1;
+
+	/*
+	 * For P1 and P2 space this is trivial, as everything is already
+	 * mapped. Uncached access for P1 addresses are done through P2.
+	 * In the P3 case or for addresses outside of the 29-bit space,
+	 * mapping must be done by the PMB or by using page tables.
+	 */
+	if (likely(PXSEG(offset) < P3SEG && PXSEG(last_addr) < P3SEG)) {
+		u64 flags = pgprot_val(prot);
+
+		/*
+		 * Anything using the legacy PTEA space attributes needs
+		 * to be kicked down to page table mappings.
+		 */
+		if (unlikely(flags & _PAGE_PCC_MASK))
+			return NULL;
+		if (unlikely(flags & _PAGE_CACHABLE))
+			return (void __iomem *)P1SEGADDR(offset);
+
+		return (void __iomem *)P2SEGADDR(offset);
+	}
+
+	/* P4 above the store queues are always mapped. */
+	if (unlikely(offset >= P3_ADDR_MAX))
+		return (void __iomem *)P4SEGADDR(offset);
+
+	return NULL;
+}
+#else
+#define __ioremap_29bit(offset, size, prot)		NULL
+#endif /* CONFIG_29BIT */
+
 /*
  * Remap an arbitrary physical address space into the kernel virtual
  * address space. Needed when the kernel wants to access high addresses
@@ -43,6 +88,14 @@ __ioremap_caller(phys_addr_t phys_addr, unsigned long size,
 	unsigned long offset, last_addr, addr, orig_addr;
 	void __iomem *mapped;
 
+	mapped = __ioremap_trapped(phys_addr, size);
+	if (mapped)
+		return mapped;
+
+	mapped = __ioremap_29bit(phys_addr, size, pgprot);
+	if (mapped)
+		return mapped;
+
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
 	if (!size || last_addr < phys_addr)
-- 
cgit v1.2.3


From 08732d1226edb7a0033d08286acada2b4e800c78 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 14 Jul 2020 14:18:52 +0200
Subject: sh: don't include <asm/io_trapped.h> in <asm/io.h>

No need to expose the details of trapped I/O to drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/io.h | 1 -
 arch/sh/kernel/ioport.c  | 1 +
 arch/sh/mm/ioremap.c     | 1 +
 3 files changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index da08a61a2f7d..873f1399fa59 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -22,7 +22,6 @@
 
 #define __IO_PREFIX     generic
 #include <asm/io_generic.h>
-#include <asm/io_trapped.h>
 #include <asm-generic/pci_iomap.h>
 #include <mach/mangle-port.h>
 
diff --git a/arch/sh/kernel/ioport.c b/arch/sh/kernel/ioport.c
index 34f8cdbbcf0b..f39446a658bd 100644
--- a/arch/sh/kernel/ioport.c
+++ b/arch/sh/kernel/ioport.c
@@ -7,6 +7,7 @@
  */
 #include <linux/module.h>
 #include <linux/io.h>
+#include <asm/io_trapped.h>
 
 unsigned long sh_io_port_base __read_mostly = -1;
 EXPORT_SYMBOL(sh_io_port_base);
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index 69e55939e48a..21342581144d 100644
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -18,6 +18,7 @@
 #include <linux/mm.h>
 #include <linux/pci.h>
 #include <linux/io.h>
+#include <asm/io_trapped.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/addrspace.h>
-- 
cgit v1.2.3


From 03dd061f0d203c3479791490d6b9359b2eaf9fec Mon Sep 17 00:00:00 2001
From: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Date: Thu, 23 Jul 2020 01:13:22 +0200
Subject: sh: bring syscall_set_return_value in line with other architectures

Other architectures expect that syscall_set_return_value gets an already
negative value as error. That's also what kernel/seccomp.c provides.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/asm/syscall_32.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'arch/sh/include')

diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h
index 0b5b8e75edac..cb51a7528384 100644
--- a/arch/sh/include/asm/syscall_32.h
+++ b/arch/sh/include/asm/syscall_32.h
@@ -40,10 +40,7 @@ static inline void syscall_set_return_value(struct task_struct *task,
 					    struct pt_regs *regs,
 					    int error, long val)
 {
-	if (error)
-		regs->regs[0] = -error;
-	else
-		regs->regs[0] = val;
+	regs->regs[0] = (long) error ?: val;
 }
 
 static inline void syscall_get_arguments(struct task_struct *task,
-- 
cgit v1.2.3