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-rw-r--r--arch/mn10300/include/asm/ioctls.h84
-rw-r--r--arch/mn10300/include/asm/irqflags.h123
-rw-r--r--arch/mn10300/include/asm/system.h109
-rw-r--r--arch/mn10300/kernel/entry.S1
-rw-r--r--arch/mn10300/kernel/module.c3
-rw-r--r--arch/mn10300/mm/cache.c20
6 files changed, 146 insertions, 194 deletions
diff --git a/arch/mn10300/include/asm/ioctls.h b/arch/mn10300/include/asm/ioctls.h
index cb8cf1902234..0212f4b22557 100644
--- a/arch/mn10300/include/asm/ioctls.h
+++ b/arch/mn10300/include/asm/ioctls.h
@@ -1,88 +1,6 @@
#ifndef _ASM_IOCTLS_H
#define _ASM_IOCTLS_H
-#include <asm/ioctl.h>
-
-/* 0x54 is just a magic number to make these relatively unique ('T') */
-
-#define TCGETS 0x5401
-#define TCSETS 0x5402
-#define TCSETSW 0x5403
-#define TCSETSF 0x5404
-#define TCGETA 0x5405
-#define TCSETA 0x5406
-#define TCSETAW 0x5407
-#define TCSETAF 0x5408
-#define TCSBRK 0x5409
-#define TCXONC 0x540A
-#define TCFLSH 0x540B
-#define TIOCEXCL 0x540C
-#define TIOCNXCL 0x540D
-#define TIOCSCTTY 0x540E
-#define TIOCGPGRP 0x540F
-#define TIOCSPGRP 0x5410
-#define TIOCOUTQ 0x5411
-#define TIOCSTI 0x5412
-#define TIOCGWINSZ 0x5413
-#define TIOCSWINSZ 0x5414
-#define TIOCMGET 0x5415
-#define TIOCMBIS 0x5416
-#define TIOCMBIC 0x5417
-#define TIOCMSET 0x5418
-#define TIOCGSOFTCAR 0x5419
-#define TIOCSSOFTCAR 0x541A
-#define FIONREAD 0x541B
-#define TIOCINQ FIONREAD
-#define TIOCLINUX 0x541C
-#define TIOCCONS 0x541D
-#define TIOCGSERIAL 0x541E
-#define TIOCSSERIAL 0x541F
-#define TIOCPKT 0x5420
-#define FIONBIO 0x5421
-#define TIOCNOTTY 0x5422
-#define TIOCSETD 0x5423
-#define TIOCGETD 0x5424
-#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
-/* #define TIOCTTYGSTRUCT 0x5426 - Former debugging-only ioctl */
-#define TIOCSBRK 0x5427 /* BSD compatibility */
-#define TIOCCBRK 0x5428 /* BSD compatibility */
-#define TIOCGSID 0x5429 /* Return the session ID of FD */
-#define TCGETS2 _IOR('T', 0x2A, struct termios2)
-#define TCSETS2 _IOW('T', 0x2B, struct termios2)
-#define TCSETSW2 _IOW('T', 0x2C, struct termios2)
-#define TCSETSF2 _IOW('T', 0x2D, struct termios2)
-#define TIOCGPTN _IOR('T', 0x30, unsigned int) /* Get Pty Number
- * (of pty-mux device) */
-#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
-#define TIOCSIG _IOW('T', 0x36, int) /* Generate signal on Pty slave */
-
-#define FIONCLEX 0x5450
-#define FIOCLEX 0x5451
-#define FIOASYNC 0x5452
-#define TIOCSERCONFIG 0x5453
-#define TIOCSERGWILD 0x5454
-#define TIOCSERSWILD 0x5455
-#define TIOCGLCKTRMIOS 0x5456
-#define TIOCSLCKTRMIOS 0x5457
-#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
-#define TIOCSERGETLSR 0x5459 /* Get line status register */
-#define TIOCSERGETMULTI 0x545A /* Get multiport config */
-#define TIOCSERSETMULTI 0x545B /* Set multiport config */
-
-#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
-#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
-#define FIOQSIZE 0x5460
-
-/* Used for packet mode */
-#define TIOCPKT_DATA 0
-#define TIOCPKT_FLUSHREAD 1
-#define TIOCPKT_FLUSHWRITE 2
-#define TIOCPKT_STOP 4
-#define TIOCPKT_START 8
-#define TIOCPKT_NOSTOP 16
-#define TIOCPKT_DOSTOP 32
-#define TIOCPKT_IOCTL 64
-
-#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
+#include <asm-generic/ioctls.h>
#endif /* _ASM_IOCTLS_H */
diff --git a/arch/mn10300/include/asm/irqflags.h b/arch/mn10300/include/asm/irqflags.h
new file mode 100644
index 000000000000..5e529a117cb2
--- /dev/null
+++ b/arch/mn10300/include/asm/irqflags.h
@@ -0,0 +1,123 @@
+/* MN10300 IRQ flag handling
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#include <asm/cpu-regs.h>
+
+/*
+ * interrupt control
+ * - "disabled": run in IM1/2
+ * - level 0 - GDB stub
+ * - level 1 - virtual serial DMA (if present)
+ * - level 5 - normal interrupt priority
+ * - level 6 - timer interrupt
+ * - "enabled": run in IM7
+ */
+#ifdef CONFIG_MN10300_TTYSM
+#define MN10300_CLI_LEVEL EPSW_IM_2
+#else
+#define MN10300_CLI_LEVEL EPSW_IM_1
+#endif
+
+#ifndef __ASSEMBLY__
+
+static inline unsigned long arch_local_save_flags(void)
+{
+ unsigned long flags;
+
+ asm volatile("mov epsw,%0" : "=d"(flags));
+ return flags;
+}
+
+static inline void arch_local_irq_disable(void)
+{
+ asm volatile(
+ " and %0,epsw \n"
+ " or %1,epsw \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ :
+ : "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL)
+ : "memory");
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+ unsigned long flags;
+
+ flags = arch_local_save_flags();
+ arch_local_irq_disable();
+ return flags;
+}
+
+/*
+ * we make sure arch_irq_enable() doesn't cause priority inversion
+ */
+extern unsigned long __mn10300_irq_enabled_epsw;
+
+static inline void arch_local_irq_enable(void)
+{
+ unsigned long tmp;
+
+ asm volatile(
+ " mov epsw,%0 \n"
+ " and %1,%0 \n"
+ " or %2,%0 \n"
+ " mov %0,epsw \n"
+ : "=&d"(tmp)
+ : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw)
+ : "memory");
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+ asm volatile(
+ " mov %0,epsw \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ :
+ : "d"(flags)
+ : "memory", "cc");
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+ return (flags & EPSW_IM) <= MN10300_CLI_LEVEL;
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+/*
+ * Hook to save power by halting the CPU
+ * - called from the idle loop
+ * - must reenable interrupts (which takes three instruction cycles to complete)
+ */
+static inline void arch_safe_halt(void)
+{
+ asm volatile(
+ " or %0,epsw \n"
+ " nop \n"
+ " nop \n"
+ " bset %2,(%1) \n"
+ :
+ : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)
+ : "cc");
+}
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_IRQFLAGS_H */
diff --git a/arch/mn10300/include/asm/system.h b/arch/mn10300/include/asm/system.h
index 3636c054dcd5..9f7c7e17c01e 100644
--- a/arch/mn10300/include/asm/system.h
+++ b/arch/mn10300/include/asm/system.h
@@ -17,6 +17,7 @@
#ifndef __ASSEMBLY__
#include <linux/kernel.h>
+#include <linux/irqflags.h>
struct task_struct;
struct thread_struct;
@@ -81,114 +82,6 @@ do { \
/*****************************************************************************/
/*
- * interrupt control
- * - "disabled": run in IM1/2
- * - level 0 - GDB stub
- * - level 1 - virtual serial DMA (if present)
- * - level 5 - normal interrupt priority
- * - level 6 - timer interrupt
- * - "enabled": run in IM7
- */
-#ifdef CONFIG_MN10300_TTYSM
-#define MN10300_CLI_LEVEL EPSW_IM_2
-#else
-#define MN10300_CLI_LEVEL EPSW_IM_1
-#endif
-
-#define local_save_flags(x) \
-do { \
- typecheck(unsigned long, x); \
- asm volatile( \
- " mov epsw,%0 \n" \
- : "=d"(x) \
- ); \
-} while (0)
-
-#define local_irq_disable() \
-do { \
- asm volatile( \
- " and %0,epsw \n" \
- " or %1,epsw \n" \
- " nop \n" \
- " nop \n" \
- " nop \n" \
- : \
- : "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL) \
- ); \
-} while (0)
-
-#define local_irq_save(x) \
-do { \
- local_save_flags(x); \
- local_irq_disable(); \
-} while (0)
-
-/*
- * we make sure local_irq_enable() doesn't cause priority inversion
- */
-#ifndef __ASSEMBLY__
-
-extern unsigned long __mn10300_irq_enabled_epsw;
-
-#endif
-
-#define local_irq_enable() \
-do { \
- unsigned long tmp; \
- \
- asm volatile( \
- " mov epsw,%0 \n" \
- " and %1,%0 \n" \
- " or %2,%0 \n" \
- " mov %0,epsw \n" \
- : "=&d"(tmp) \
- : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw) \
- : "cc" \
- ); \
-} while (0)
-
-#define local_irq_restore(x) \
-do { \
- typecheck(unsigned long, x); \
- asm volatile( \
- " mov %0,epsw \n" \
- " nop \n" \
- " nop \n" \
- " nop \n" \
- : \
- : "d"(x) \
- : "memory", "cc" \
- ); \
-} while (0)
-
-#define irqs_disabled() \
-({ \
- unsigned long flags; \
- local_save_flags(flags); \
- (flags & EPSW_IM) <= MN10300_CLI_LEVEL; \
-})
-
-/* hook to save power by halting the CPU
- * - called from the idle loop
- * - must reenable interrupts (which takes three instruction cycles to complete)
- */
-#define safe_halt() \
-do { \
- asm volatile(" or %0,epsw \n" \
- " nop \n" \
- " nop \n" \
- " bset %2,(%1) \n" \
- : \
- : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)\
- : "cc" \
- ); \
-} while (0)
-
-#define STI or EPSW_IE|EPSW_IM,epsw
-#define CLI and ~EPSW_IM,epsw; or EPSW_IE|MN10300_CLI_LEVEL,epsw; nop; nop; nop
-
-/*****************************************************************************/
-/*
* MN10300 doesn't actually have an exchange instruction
*/
#ifndef __ASSEMBLY__
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index d9ed5a15c547..3d394b4eefba 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -16,6 +16,7 @@
#include <linux/linkage.h>
#include <asm/smp.h>
#include <asm/system.h>
+#include <asm/irqflags.h>
#include <asm/thread_info.h>
#include <asm/intctl-regs.h>
#include <asm/busctl-regs.h>
diff --git a/arch/mn10300/kernel/module.c b/arch/mn10300/kernel/module.c
index 6aea7fd76993..196a111e2e29 100644
--- a/arch/mn10300/kernel/module.c
+++ b/arch/mn10300/kernel/module.c
@@ -206,7 +206,7 @@ int module_finalize(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
struct module *me)
{
- return module_bug_finalize(hdr, sechdrs, me);
+ return 0;
}
/*
@@ -214,5 +214,4 @@ int module_finalize(const Elf_Ehdr *hdr,
*/
void module_arch_cleanup(struct module *mod)
{
- module_bug_cleanup(mod);
}
diff --git a/arch/mn10300/mm/cache.c b/arch/mn10300/mm/cache.c
index 1b76719ec1c3..9261217e8d2c 100644
--- a/arch/mn10300/mm/cache.c
+++ b/arch/mn10300/mm/cache.c
@@ -54,13 +54,30 @@ EXPORT_SYMBOL(flush_icache_page);
void flush_icache_range(unsigned long start, unsigned long end)
{
#ifdef CONFIG_MN10300_CACHE_WBACK
- unsigned long addr, size, off;
+ unsigned long addr, size, base, off;
struct page *page;
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *ppte, pte;
+ if (end > 0x80000000UL) {
+ /* addresses above 0xa0000000 do not go through the cache */
+ if (end > 0xa0000000UL) {
+ end = 0xa0000000UL;
+ if (start >= end)
+ return;
+ }
+
+ /* kernel addresses between 0x80000000 and 0x9fffffff do not
+ * require page tables, so we just map such addresses directly */
+ base = (start >= 0x80000000UL) ? start : 0x80000000UL;
+ mn10300_dcache_flush_range(base, end);
+ if (base == start)
+ goto invalidate;
+ end = base;
+ }
+
for (; start < end; start += size) {
/* work out how much of the page to flush */
off = start & (PAGE_SIZE - 1);
@@ -104,6 +121,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
}
#endif
+invalidate:
mn10300_icache_inv();
}
EXPORT_SYMBOL(flush_icache_range);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-22 12:30:48 +0000