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Message-ID: <20120313091620.GH549@axis.com>
Date: Tue, 13 Mar 2012 10:16:20 +0100
From: Jesper Nilsson <jesper.nilsson@...s.com>
To: David Howells <dhowells@...hat.com>
Cc: "paul.gortmaker@...driver.com" <paul.gortmaker@...driver.com>,
"hpa@...or.com" <hpa@...or.com>,
"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
"arnd@...db.de" <arnd@...db.de>,
linux-cris-kernel <linux-cris-kernel@...s.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 07/35] Disintegrate asm/system.h for CRIS [ver #2]
On Tue, Mar 13, 2012 at 12:37:16AM +0100, David Howells wrote:
> Disintegrate asm/system.h for CRIS.
>
> Signed-off-by: David Howells <dhowells@...hat.com>
Acked-by: Jesper Nilsson <jesper.nilsson@...s.com>
> cc: linux-cris-kernel@...s.com
> ---
>
> arch/cris/arch-v10/drivers/ds1302.c | 1
> arch/cris/arch-v10/drivers/gpio.c | 1
> arch/cris/arch-v10/drivers/i2c.c | 1
> arch/cris/arch-v10/drivers/pcf8563.c | 1
> arch/cris/arch-v10/drivers/sync_serial.c | 1
> arch/cris/arch-v10/kernel/debugport.c | 1
> arch/cris/arch-v10/kernel/dma.c | 1
> arch/cris/arch-v10/kernel/io_interface_mux.c | 1
> arch/cris/arch-v10/kernel/process.c | 1
> arch/cris/arch-v10/kernel/ptrace.c | 1
> arch/cris/arch-v10/kernel/setup.c | 1
> arch/cris/arch-v10/kernel/signal.c | 1
> arch/cris/arch-v10/kernel/traps.c | 1
> arch/cris/arch-v32/drivers/i2c.c | 1
> arch/cris/arch-v32/drivers/mach-a3/gpio.c | 1
> arch/cris/arch-v32/drivers/mach-fs/gpio.c | 1
> arch/cris/arch-v32/kernel/debugport.c | 1
> arch/cris/arch-v32/kernel/fasttimer.c | 1
> arch/cris/arch-v32/kernel/ptrace.c | 1
> arch/cris/arch-v32/mach-a3/dma.c | 1
> arch/cris/arch-v32/mach-fs/dma.c | 1
> arch/cris/include/arch-v10/arch/elf.h | 2 +
> arch/cris/include/arch-v32/arch/elf.h | 2 +
> arch/cris/include/asm/atomic.h | 2 -
> arch/cris/include/asm/barrier.h | 23 ++++++
> arch/cris/include/asm/bitops.h | 1
> arch/cris/include/asm/cmpxchg.h | 51 ++++++++++++++
> arch/cris/include/asm/exec.h | 6 ++
> arch/cris/include/asm/processor.h | 11 +++
> arch/cris/include/asm/switch_to.h | 12 +++
> arch/cris/include/asm/system.h | 94 +-------------------------
> arch/cris/kernel/irq.c | 1
> arch/cris/kernel/process.c | 1
> arch/cris/kernel/ptrace.c | 1
> arch/cris/kernel/setup.c | 1
> arch/cris/kernel/traps.c | 1
> arch/cris/mm/fault.c | 1
> drivers/tty/serial/crisv10.c | 1
> 38 files changed, 123 insertions(+), 109 deletions(-)
> create mode 100644 arch/cris/include/asm/barrier.h
> create mode 100644 arch/cris/include/asm/cmpxchg.h
> create mode 100644 arch/cris/include/asm/exec.h
> create mode 100644 arch/cris/include/asm/switch_to.h
>
> diff --git a/arch/cris/arch-v10/drivers/ds1302.c b/arch/cris/arch-v10/drivers/ds1302.c
> index 3d655dc..74f99c6 100644
> --- a/arch/cris/arch-v10/drivers/ds1302.c
> +++ b/arch/cris/arch-v10/drivers/ds1302.c
> @@ -24,7 +24,6 @@
> #include <linux/capability.h>
>
> #include <asm/uaccess.h>
> -#include <asm/system.h>
> #include <arch/svinto.h>
> #include <asm/io.h>
> #include <asm/rtc.h>
> diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
> index a276f08..609d551 100644
> --- a/arch/cris/arch-v10/drivers/gpio.c
> +++ b/arch/cris/arch-v10/drivers/gpio.c
> @@ -24,7 +24,6 @@
> #include <asm/etraxgpio.h>
> #include <arch/svinto.h>
> #include <asm/io.h>
> -#include <asm/system.h>
> #include <asm/irq.h>
> #include <arch/io_interface_mux.h>
>
> diff --git a/arch/cris/arch-v10/drivers/i2c.c b/arch/cris/arch-v10/drivers/i2c.c
> index c413539..b3d1f9e 100644
> --- a/arch/cris/arch-v10/drivers/i2c.c
> +++ b/arch/cris/arch-v10/drivers/i2c.c
> @@ -22,7 +22,6 @@
>
> #include <asm/etraxi2c.h>
>
> -#include <asm/system.h>
> #include <arch/svinto.h>
> #include <asm/io.h>
> #include <asm/delay.h>
> diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c
> index 1391b73..9da0568 100644
> --- a/arch/cris/arch-v10/drivers/pcf8563.c
> +++ b/arch/cris/arch-v10/drivers/pcf8563.c
> @@ -29,7 +29,6 @@
> #include <linux/mutex.h>
>
> #include <asm/uaccess.h>
> -#include <asm/system.h>
> #include <asm/io.h>
> #include <asm/rtc.h>
>
> diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
> index 466af40..c4b7171 100644
> --- a/arch/cris/arch-v10/drivers/sync_serial.c
> +++ b/arch/cris/arch-v10/drivers/sync_serial.c
> @@ -27,7 +27,6 @@
> #include <asm/io.h>
> #include <arch/svinto.h>
> #include <asm/uaccess.h>
> -#include <asm/system.h>
> #include <asm/sync_serial.h>
> #include <arch/io_interface_mux.h>
>
> diff --git a/arch/cris/arch-v10/kernel/debugport.c b/arch/cris/arch-v10/kernel/debugport.c
> index 99851ba..f932c85 100644
> --- a/arch/cris/arch-v10/kernel/debugport.c
> +++ b/arch/cris/arch-v10/kernel/debugport.c
> @@ -18,7 +18,6 @@
> #include <linux/major.h>
> #include <linux/delay.h>
> #include <linux/tty.h>
> -#include <asm/system.h>
> #include <arch/svinto.h>
> #include <asm/io.h> /* Get SIMCOUT. */
>
> diff --git a/arch/cris/arch-v10/kernel/dma.c b/arch/cris/arch-v10/kernel/dma.c
> index d31504b..5795047 100644
> --- a/arch/cris/arch-v10/kernel/dma.c
> +++ b/arch/cris/arch-v10/kernel/dma.c
> @@ -8,6 +8,7 @@
>
> #include <asm/dma.h>
> #include <arch/svinto.h>
> +#include <arch/system.h>
>
> /* Macro to access ETRAX 100 registers */
> #define SETS(var, reg, field, val) var = (var & ~IO_MASK_(reg##_, field##_)) | \
> diff --git a/arch/cris/arch-v10/kernel/io_interface_mux.c b/arch/cris/arch-v10/kernel/io_interface_mux.c
> index 29f97e9..ad64cd1 100644
> --- a/arch/cris/arch-v10/kernel/io_interface_mux.c
> +++ b/arch/cris/arch-v10/kernel/io_interface_mux.c
> @@ -14,6 +14,7 @@
> #include <arch/svinto.h>
> #include <asm/io.h>
> #include <arch/io_interface_mux.h>
> +#include <arch/system.h>
>
>
> #define DBG(s)
> diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
> index 9a57db6..bee8df4 100644
> --- a/arch/cris/arch-v10/kernel/process.c
> +++ b/arch/cris/arch-v10/kernel/process.c
> @@ -16,6 +16,7 @@
> #include <linux/fs.h>
> #include <arch/svinto.h>
> #include <linux/init.h>
> +#include <arch/system.h>
>
> #ifdef CONFIG_ETRAX_GPIO
> void etrax_gpio_wake_up_check(void); /* drivers/gpio.c */
> diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
> index 320065f..bfddfb9 100644
> --- a/arch/cris/arch-v10/kernel/ptrace.c
> +++ b/arch/cris/arch-v10/kernel/ptrace.c
> @@ -15,7 +15,6 @@
> #include <asm/uaccess.h>
> #include <asm/page.h>
> #include <asm/pgtable.h>
> -#include <asm/system.h>
> #include <asm/processor.h>
>
> /*
> diff --git a/arch/cris/arch-v10/kernel/setup.c b/arch/cris/arch-v10/kernel/setup.c
> index de27b50..4f96d71 100644
> --- a/arch/cris/arch-v10/kernel/setup.c
> +++ b/arch/cris/arch-v10/kernel/setup.c
> @@ -14,6 +14,7 @@
> #include <linux/proc_fs.h>
> #include <linux/delay.h>
> #include <linux/param.h>
> +#include <arch/system.h>
>
> #ifdef CONFIG_PROC_FS
> #define HAS_FPU 0x0001
> diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
> index e78fe49..289c584 100644
> --- a/arch/cris/arch-v10/kernel/signal.c
> +++ b/arch/cris/arch-v10/kernel/signal.c
> @@ -27,6 +27,7 @@
> #include <asm/processor.h>
> #include <asm/ucontext.h>
> #include <asm/uaccess.h>
> +#include <arch/system.h>
>
> #define DEBUG_SIG 0
>
> diff --git a/arch/cris/arch-v10/kernel/traps.c b/arch/cris/arch-v10/kernel/traps.c
> index 8bebb96..7001bed 100644
> --- a/arch/cris/arch-v10/kernel/traps.c
> +++ b/arch/cris/arch-v10/kernel/traps.c
> @@ -11,6 +11,7 @@
> #include <linux/ptrace.h>
> #include <asm/uaccess.h>
> #include <arch/sv_addr_ag.h>
> +#include <arch/system.h>
>
> void
> show_registers(struct pt_regs *regs)
> diff --git a/arch/cris/arch-v32/drivers/i2c.c b/arch/cris/arch-v32/drivers/i2c.c
> index ddb2399..3b2c82c 100644
> --- a/arch/cris/arch-v32/drivers/i2c.c
> +++ b/arch/cris/arch-v32/drivers/i2c.c
> @@ -36,7 +36,6 @@
>
> #include <asm/etraxi2c.h>
>
> -#include <asm/system.h>
> #include <asm/io.h>
> #include <asm/delay.h>
>
> diff --git a/arch/cris/arch-v32/drivers/mach-a3/gpio.c b/arch/cris/arch-v32/drivers/mach-a3/gpio.c
> index c845831..0b86dee 100644
> --- a/arch/cris/arch-v32/drivers/mach-a3/gpio.c
> +++ b/arch/cris/arch-v32/drivers/mach-a3/gpio.c
> @@ -31,7 +31,6 @@
> #include <hwregs/gio_defs.h>
> #include <hwregs/intr_vect_defs.h>
> #include <asm/io.h>
> -#include <asm/system.h>
> #include <asm/irq.h>
> #include <mach/pinmux.h>
>
> diff --git a/arch/cris/arch-v32/drivers/mach-fs/gpio.c b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
> index ee90d26..a2ac091 100644
> --- a/arch/cris/arch-v32/drivers/mach-fs/gpio.c
> +++ b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
> @@ -30,7 +30,6 @@
> #include <hwregs/gio_defs.h>
> #include <hwregs/intr_vect_defs.h>
> #include <asm/io.h>
> -#include <asm/system.h>
> #include <asm/irq.h>
>
> #ifdef CONFIG_ETRAX_VIRTUAL_GPIO
> diff --git a/arch/cris/arch-v32/kernel/debugport.c b/arch/cris/arch-v32/kernel/debugport.c
> index 794b364..610909b 100644
> --- a/arch/cris/arch-v32/kernel/debugport.c
> +++ b/arch/cris/arch-v32/kernel/debugport.c
> @@ -4,7 +4,6 @@
>
> #include <linux/console.h>
> #include <linux/init.h>
> -#include <asm/system.h>
> #include <hwregs/reg_rdwr.h>
> #include <hwregs/reg_map.h>
> #include <hwregs/ser_defs.h>
> diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c
> index 111caa1..ab1551e 100644
> --- a/arch/cris/arch-v32/kernel/fasttimer.c
> +++ b/arch/cris/arch-v32/kernel/fasttimer.c
> @@ -17,7 +17,6 @@
> #include <linux/delay.h>
>
> #include <asm/irq.h>
> -#include <asm/system.h>
>
> #include <hwregs/reg_map.h>
> #include <hwregs/reg_rdwr.h>
> diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
> index 511ece9..f7ad9e8 100644
> --- a/arch/cris/arch-v32/kernel/ptrace.c
> +++ b/arch/cris/arch-v32/kernel/ptrace.c
> @@ -15,7 +15,6 @@
> #include <asm/uaccess.h>
> #include <asm/page.h>
> #include <asm/pgtable.h>
> -#include <asm/system.h>
> #include <asm/processor.h>
> #include <arch/hwregs/supp_reg.h>
>
> diff --git a/arch/cris/arch-v32/mach-a3/dma.c b/arch/cris/arch-v32/mach-a3/dma.c
> index f35e4f6..47c64bf 100644
> --- a/arch/cris/arch-v32/mach-a3/dma.c
> +++ b/arch/cris/arch-v32/mach-a3/dma.c
> @@ -9,7 +9,6 @@
> #include <hwregs/clkgen_defs.h>
> #include <hwregs/strmux_defs.h>
> #include <linux/errno.h>
> -#include <asm/system.h>
> #include <arbiter.h>
>
> static char used_dma_channels[MAX_DMA_CHANNELS];
> diff --git a/arch/cris/arch-v32/mach-fs/dma.c b/arch/cris/arch-v32/mach-fs/dma.c
> index 2d970d7..fc6416a 100644
> --- a/arch/cris/arch-v32/mach-fs/dma.c
> +++ b/arch/cris/arch-v32/mach-fs/dma.c
> @@ -9,7 +9,6 @@
> #include <hwregs/config_defs.h>
> #include <hwregs/strmux_defs.h>
> #include <linux/errno.h>
> -#include <asm/system.h>
> #include <mach/arbiter.h>
>
> static char used_dma_channels[MAX_DMA_CHANNELS];
> diff --git a/arch/cris/include/arch-v10/arch/elf.h b/arch/cris/include/arch-v10/arch/elf.h
> index 1c38ee7..1eb638a 100644
> --- a/arch/cris/include/arch-v10/arch/elf.h
> +++ b/arch/cris/include/arch-v10/arch/elf.h
> @@ -1,6 +1,8 @@
> #ifndef __ASMCRIS_ARCH_ELF_H
> #define __ASMCRIS_ARCH_ELF_H
>
> +#include <arch/system.h>
> +
> #define ELF_MACH EF_CRIS_VARIANT_ANY_V0_V10
>
> /*
> diff --git a/arch/cris/include/arch-v32/arch/elf.h b/arch/cris/include/arch-v32/arch/elf.h
> index 1324e50..c46d582 100644
> --- a/arch/cris/include/arch-v32/arch/elf.h
> +++ b/arch/cris/include/arch-v32/arch/elf.h
> @@ -1,6 +1,8 @@
> #ifndef _ASM_CRIS_ELF_H
> #define _ASM_CRIS_ELF_H
>
> +#include <arch/system.h>
> +
> #define ELF_CORE_EFLAGS EF_CRIS_VARIANT_V32
>
> /*
> diff --git a/arch/cris/include/asm/atomic.h b/arch/cris/include/asm/atomic.h
> index bbf0938..1056a5d 100644
> --- a/arch/cris/include/asm/atomic.h
> +++ b/arch/cris/include/asm/atomic.h
> @@ -5,7 +5,7 @@
>
> #include <linux/compiler.h>
> #include <linux/types.h>
> -#include <asm/system.h>
> +#include <asm/cmpxchg.h>
> #include <arch/atomic.h>
>
> /*
> diff --git a/arch/cris/include/asm/barrier.h b/arch/cris/include/asm/barrier.h
> new file mode 100644
> index 0000000..ce0f293
> --- /dev/null
> +++ b/arch/cris/include/asm/barrier.h
> @@ -0,0 +1,23 @@
> +#ifndef __ASM_CRIS_BARRIER_H
> +#define __ASM_CRIS_BARRIER_H
> +
> +#define barrier() __asm__ __volatile__("": : :"memory")
> +#define mb() barrier()
> +#define rmb() mb()
> +#define wmb() mb()
> +#define read_barrier_depends() do { } while(0)
> +#define set_mb(var, value) do { var = value; mb(); } while (0)
> +
> +#ifdef CONFIG_SMP
> +#define smp_mb() mb()
> +#define smp_rmb() rmb()
> +#define smp_wmb() wmb()
> +#define smp_read_barrier_depends() read_barrier_depends()
> +#else
> +#define smp_mb() barrier()
> +#define smp_rmb() barrier()
> +#define smp_wmb() barrier()
> +#define smp_read_barrier_depends() do { } while(0)
> +#endif
> +
> +#endif /* __ASM_CRIS_BARRIER_H */
> diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
> index a78a2d7..184066c 100644
> --- a/arch/cris/include/asm/bitops.h
> +++ b/arch/cris/include/asm/bitops.h
> @@ -19,7 +19,6 @@
> #endif
>
> #include <arch/bitops.h>
> -#include <asm/system.h>
> #include <linux/atomic.h>
> #include <linux/compiler.h>
>
> diff --git a/arch/cris/include/asm/cmpxchg.h b/arch/cris/include/asm/cmpxchg.h
> new file mode 100644
> index 0000000..7ee390e
> --- /dev/null
> +++ b/arch/cris/include/asm/cmpxchg.h
> @@ -0,0 +1,51 @@
> +#ifndef __ASM_CRIS_CMPXCHG__
> +#define __ASM_CRIS_CMPXCHG__
> +
> +#include <linux/irqflags.h>
> +
> +static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
> +{
> + /* since Etrax doesn't have any atomic xchg instructions, we need to disable
> + irq's (if enabled) and do it with move.d's */
> + unsigned long flags,temp;
> + local_irq_save(flags); /* save flags, including irq enable bit and shut off irqs */
> + switch (size) {
> + case 1:
> + *((unsigned char *)&temp) = x;
> + x = *(unsigned char *)ptr;
> + *(unsigned char *)ptr = *((unsigned char *)&temp);
> + break;
> + case 2:
> + *((unsigned short *)&temp) = x;
> + x = *(unsigned short *)ptr;
> + *(unsigned short *)ptr = *((unsigned short *)&temp);
> + break;
> + case 4:
> + temp = x;
> + x = *(unsigned long *)ptr;
> + *(unsigned long *)ptr = temp;
> + break;
> + }
> + local_irq_restore(flags); /* restore irq enable bit */
> + return x;
> +}
> +
> +#define xchg(ptr,x) \
> + ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
> +
> +#include <asm-generic/cmpxchg-local.h>
> +
> +/*
> + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
> + * them available.
> + */
> +#define cmpxchg_local(ptr, o, n) \
> + ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
> + (unsigned long)(n), sizeof(*(ptr))))
> +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
> +
> +#ifndef CONFIG_SMP
> +#include <asm-generic/cmpxchg.h>
> +#endif
> +
> +#endif /* __ASM_CRIS_CMPXCHG__ */
> diff --git a/arch/cris/include/asm/exec.h b/arch/cris/include/asm/exec.h
> new file mode 100644
> index 0000000..9665dab
> --- /dev/null
> +++ b/arch/cris/include/asm/exec.h
> @@ -0,0 +1,6 @@
> +#ifndef __ASM_CRIS_EXEC_H
> +#define __ASM_CRIS_EXEC_H
> +
> +#define arch_align_stack(x) (x)
> +
> +#endif /* __ASM_CRIS_EXEC_H */
> diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h
> index 3f7248f..4210d72 100644
> --- a/arch/cris/include/asm/processor.h
> +++ b/arch/cris/include/asm/processor.h
> @@ -10,10 +10,10 @@
> #ifndef __ASM_CRIS_PROCESSOR_H
> #define __ASM_CRIS_PROCESSOR_H
>
> -#include <asm/system.h>
> #include <asm/page.h>
> #include <asm/ptrace.h>
> #include <arch/processor.h>
> +#include <arch/system.h>
>
> struct task_struct;
>
> @@ -72,4 +72,13 @@ static inline void release_thread(struct task_struct *dead_task)
>
> #define cpu_relax() barrier()
>
> +/*
> + * disable hlt during certain critical i/o operations
> + */
> +#define HAVE_DISABLE_HLT
> +void disable_hlt(void);
> +void enable_hlt(void);
> +
> +void default_idle(void);
> +
> #endif /* __ASM_CRIS_PROCESSOR_H */
> diff --git a/arch/cris/include/asm/switch_to.h b/arch/cris/include/asm/switch_to.h
> new file mode 100644
> index 0000000..d842e11
> --- /dev/null
> +++ b/arch/cris/include/asm/switch_to.h
> @@ -0,0 +1,12 @@
> +#ifndef __ASM_CRIS_SWITCH_TO_H
> +#define __ASM_CRIS_SWITCH_TO_H
> +
> +/* the switch_to macro calls resume, an asm function in entry.S which does the actual
> + * task switching.
> + */
> +
> +extern struct task_struct *resume(struct task_struct *prev, struct task_struct *next, int);
> +#define switch_to(prev,next,last) last = resume(prev,next, \
> + (int)&((struct task_struct *)0)->thread)
> +
> +#endif /* __ASM_CRIS_SWITCH_TO_H */
> diff --git a/arch/cris/include/asm/system.h b/arch/cris/include/asm/system.h
> index ea10592..a7f4057 100644
> --- a/arch/cris/include/asm/system.h
> +++ b/arch/cris/include/asm/system.h
> @@ -1,89 +1,5 @@
> -#ifndef __ASM_CRIS_SYSTEM_H
> -#define __ASM_CRIS_SYSTEM_H
> -
> -#include <linux/irqflags.h>
> -#include <arch/system.h>
> -
> -/* the switch_to macro calls resume, an asm function in entry.S which does the actual
> - * task switching.
> - */
> -
> -extern struct task_struct *resume(struct task_struct *prev, struct task_struct *next, int);
> -#define switch_to(prev,next,last) last = resume(prev,next, \
> - (int)&((struct task_struct *)0)->thread)
> -
> -#define barrier() __asm__ __volatile__("": : :"memory")
> -#define mb() barrier()
> -#define rmb() mb()
> -#define wmb() mb()
> -#define read_barrier_depends() do { } while(0)
> -#define set_mb(var, value) do { var = value; mb(); } while (0)
> -
> -#ifdef CONFIG_SMP
> -#define smp_mb() mb()
> -#define smp_rmb() rmb()
> -#define smp_wmb() wmb()
> -#define smp_read_barrier_depends() read_barrier_depends()
> -#else
> -#define smp_mb() barrier()
> -#define smp_rmb() barrier()
> -#define smp_wmb() barrier()
> -#define smp_read_barrier_depends() do { } while(0)
> -#endif
> -
> -#define iret()
> -
> -/*
> - * disable hlt during certain critical i/o operations
> - */
> -#define HAVE_DISABLE_HLT
> -void disable_hlt(void);
> -void enable_hlt(void);
> -
> -static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
> -{
> - /* since Etrax doesn't have any atomic xchg instructions, we need to disable
> - irq's (if enabled) and do it with move.d's */
> - unsigned long flags,temp;
> - local_irq_save(flags); /* save flags, including irq enable bit and shut off irqs */
> - switch (size) {
> - case 1:
> - *((unsigned char *)&temp) = x;
> - x = *(unsigned char *)ptr;
> - *(unsigned char *)ptr = *((unsigned char *)&temp);
> - break;
> - case 2:
> - *((unsigned short *)&temp) = x;
> - x = *(unsigned short *)ptr;
> - *(unsigned short *)ptr = *((unsigned short *)&temp);
> - break;
> - case 4:
> - temp = x;
> - x = *(unsigned long *)ptr;
> - *(unsigned long *)ptr = temp;
> - break;
> - }
> - local_irq_restore(flags); /* restore irq enable bit */
> - return x;
> -}
> -
> -#include <asm-generic/cmpxchg-local.h>
> -
> -/*
> - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
> - * them available.
> - */
> -#define cmpxchg_local(ptr, o, n) \
> - ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
> - (unsigned long)(n), sizeof(*(ptr))))
> -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
> -
> -#ifndef CONFIG_SMP
> -#include <asm-generic/cmpxchg.h>
> -#endif
> -
> -#define arch_align_stack(x) (x)
> -
> -void default_idle(void);
> -
> -#endif
> +/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
> +#include <asm/barrier.h>
> +#include <asm/cmpxchg.h>
> +#include <asm/exec.h>
> +#include <asm/switch_to.h>
> diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
> index 788eb22..d36836d 100644
> --- a/arch/cris/kernel/irq.c
> +++ b/arch/cris/kernel/irq.c
> @@ -36,6 +36,7 @@
> #include <linux/spinlock.h>
>
> #include <asm/io.h>
> +#include <arch/system.h>
>
> /* called by the assembler IRQ entry functions defined in irq.h
> * to dispatch the interrupts to registered handlers
> diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
> index aa585e4..41a973b 100644
> --- a/arch/cris/kernel/process.c
> +++ b/arch/cris/kernel/process.c
> @@ -16,7 +16,6 @@
> #include <asm/pgtable.h>
> #include <asm/uaccess.h>
> #include <asm/irq.h>
> -#include <asm/system.h>
> #include <linux/module.h>
> #include <linux/spinlock.h>
> #include <linux/init_task.h>
> diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c
> index 48b0f39..d114ad3 100644
> --- a/arch/cris/kernel/ptrace.c
> +++ b/arch/cris/kernel/ptrace.c
> @@ -21,7 +21,6 @@
> #include <asm/uaccess.h>
> #include <asm/page.h>
> #include <asm/pgtable.h>
> -#include <asm/system.h>
> #include <asm/processor.h>
>
>
> diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
> index b712f49..32c3d24 100644
> --- a/arch/cris/kernel/setup.c
> +++ b/arch/cris/kernel/setup.c
> @@ -20,6 +20,7 @@
> #include <linux/pfn.h>
> #include <linux/cpu.h>
> #include <asm/setup.h>
> +#include <arch/system.h>
>
> /*
> * Setup options
> diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
> index 8da53f3..a11ad32 100644
> --- a/arch/cris/kernel/traps.c
> +++ b/arch/cris/kernel/traps.c
> @@ -17,6 +17,7 @@
>
> #include <asm/pgtable.h>
> #include <asm/uaccess.h>
> +#include <arch/system.h>
>
> extern void arch_enable_nmi(void);
> extern void stop_watchdog(void);
> diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
> index 9dcac8e..b4760d8 100644
> --- a/arch/cris/mm/fault.c
> +++ b/arch/cris/mm/fault.c
> @@ -9,6 +9,7 @@
> #include <linux/module.h>
> #include <linux/wait.h>
> #include <asm/uaccess.h>
> +#include <arch/system.h>
>
> extern int find_fixup_code(struct pt_regs *);
> extern void die_if_kernel(const char *, struct pt_regs *, long);
> diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
> index 1dfba7b..fb13a17 100644
> --- a/drivers/tty/serial/crisv10.c
> +++ b/drivers/tty/serial/crisv10.c
> @@ -37,6 +37,7 @@ static char *serial_version = "$Revision: 1.25 $";
> #include <asm/system.h>
>
> #include <arch/svinto.h>
> +#include <arch/system.h>
>
> /* non-arch dependent serial structures are in linux/serial.h */
> #include <linux/serial.h>
>
/^JN - Jesper Nilsson
--
Jesper Nilsson -- jesper.nilsson@...s.com
--
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