From 94cabd003e989556d8bf84027d96284dc2d99c76 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Sat, 12 Nov 2005 18:53:48 +0000 Subject: [ARM] 3149/1: SharpSL: Add Akita (SL-C1000) machine support Patch from Richard Purdie Add the core machine support for the Sharp SL-C1000 (Akita) and enable the Kconfig selection for it. Signed-off-by: Richard Purdie Signed-off-by: Russell King --- include/asm-arm/arch-pxa/akita.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/asm-arm') diff --git a/include/asm-arm/arch-pxa/akita.h b/include/asm-arm/arch-pxa/akita.h index 4a1fbcfccc3..5d8cc1d9cb1 100644 --- a/include/asm-arm/arch-pxa/akita.h +++ b/include/asm-arm/arch-pxa/akita.h @@ -25,6 +25,8 @@ /* Default Values */ #define AKITA_IOEXP_IO_OUT (AKITA_IOEXP_IR_ON | AKITA_IOEXP_AKIN_PULLUP) +extern struct platform_device akitaioexp_device; + void akita_set_ioexp(struct device *dev, unsigned char bitmask); void akita_reset_ioexp(struct device *dev, unsigned char bitmask); -- cgit v1.2.3 From 4a6dae6d382e9edf3ff440b819e554ed706359bc Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sun, 13 Nov 2005 16:07:24 -0800 Subject: [PATCH] atomic: cmpxchg Introduce an atomic_cmpxchg operation. Signed-off-by: Nick Piggin Cc: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/atomic.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'include/asm-arm') diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h index 2885972b085..8ab1689ef56 100644 --- a/include/asm-arm/atomic.h +++ b/include/asm-arm/atomic.h @@ -80,6 +80,23 @@ static inline int atomic_sub_return(int i, atomic_t *v) return result; } +static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) +{ + u32 oldval, res; + + do { + __asm__ __volatile__("@ atomic_cmpxchg\n" + "ldrex %1, [%2]\n" + "teq %1, %3\n" + "strexeq %0, %4, [%2]\n" + : "=&r" (res), "=&r" (oldval) + : "r" (&ptr->counter), "Ir" (old), "r" (new) + : "cc"); + } while (res); + + return oldval; +} + static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) { unsigned long tmp, tmp2; @@ -131,6 +148,20 @@ static inline int atomic_sub_return(int i, atomic_t *v) return val; } +static inline int atomic_cmpxchg(atomic_t *v, int old, int new) +{ + int ret; + unsigned long flags; + + local_irq_save(flags); + ret = v->counter; + if (likely(ret == old)) + v->counter = new; + local_irq_restore(flags); + + return ret; +} + static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) { unsigned long flags; -- cgit v1.2.3 From 8426e1f6af0fd7f44d040af7263750c5a52f3cc3 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sun, 13 Nov 2005 16:07:25 -0800 Subject: [PATCH] atomic: inc_not_zero Introduce an atomic_inc_not_zero operation. Make this a special case of atomic_add_unless because lockless pagecache actually wants atomic_inc_not_negativeone due to its offset refcount. Signed-off-by: Nick Piggin Cc: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/atomic.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/asm-arm') diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h index 8ab1689ef56..75b80271972 100644 --- a/include/asm-arm/atomic.h +++ b/include/asm-arm/atomic.h @@ -173,6 +173,17 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) #endif /* __LINUX_ARM_ARCH__ */ +static inline int atomic_add_unless(atomic_t *v, int a, int u) +{ + int c, old; + + c = atomic_read(v); + while (c != u && (old = atomic_cmpxchg((v), c, c + a)) != c) + c = old; + return c != u; +} +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) + #define atomic_add(i, v) (void) atomic_add_return(i, v) #define atomic_inc(v) (void) atomic_add_return(1, v) #define atomic_sub(i, v) (void) atomic_sub_return(i, v) -- cgit v1.2.3 From ce07d90aa80a4c9a956eb2f662e4be5ea5c6baf8 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Nov 2005 14:38:19 +0000 Subject: [ARM] Fix arch-realview/system.h to use __io_address() Move __io_address to arch-realview/hardware.h, drop core.h from platsmp.c and localtimer.c, and include asm/io.h where required. Signed-off-by: Russell King --- include/asm-arm/arch-realview/hardware.h | 1 + include/asm-arm/arch-realview/system.h | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'include/asm-arm') diff --git a/include/asm-arm/arch-realview/hardware.h b/include/asm-arm/arch-realview/hardware.h index 67879cdb6ef..9ca76dc3a7a 100644 --- a/include/asm-arm/arch-realview/hardware.h +++ b/include/asm-arm/arch-realview/hardware.h @@ -27,5 +27,6 @@ /* macro to get at IO space when running virtually */ #define IO_ADDRESS(x) (((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + 0xf0000000) +#define __io_address(n) __io(IO_ADDRESS(n)) #endif diff --git a/include/asm-arm/arch-realview/system.h b/include/asm-arm/arch-realview/system.h index 9f8fcbca086..6f3d0ce0ca1 100644 --- a/include/asm-arm/arch-realview/system.h +++ b/include/asm-arm/arch-realview/system.h @@ -36,7 +36,7 @@ static inline void arch_idle(void) static inline void arch_reset(char mode) { - unsigned int hdr_ctrl = (IO_ADDRESS(REALVIEW_SYS_BASE) + REALVIEW_SYS_RESETCTL_OFFSET); + void __iomem *hdr_ctrl = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_RESETCTL_OFFSET; unsigned int val; /* -- cgit v1.2.3 From 0a5709b2dc84140082ea235130a05c05d51f94a2 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Nov 2005 14:51:20 +0000 Subject: [ARM] Include asm/hardware.h instead of asm/arch/hardware.h Rationalise hardware.h include. Signed-off-by: Russell King --- include/asm-arm/arch-clps711x/uncompress.h | 2 +- include/asm-arm/arch-epxa10db/uncompress.h | 2 +- include/asm-arm/arch-h720x/uncompress.h | 2 +- include/asm-arm/arch-imx/irqs.h | 2 +- include/asm-arm/arch-imx/timex.h | 2 +- include/asm-arm/arch-integrator/smp.h | 2 +- include/asm-arm/arch-l7200/aux_reg.h | 2 +- include/asm-arm/arch-l7200/gp_timers.h | 2 +- include/asm-arm/arch-omap/gpio.h | 2 +- include/asm-arm/arch-omap/irqs.h | 2 +- include/asm-arm/arch-omap/mcbsp.h | 2 +- include/asm-arm/arch-omap/system.h | 2 +- include/asm-arm/arch-rpc/system.h | 2 +- include/asm-arm/hardware/dec21285.h | 2 +- 14 files changed, 14 insertions(+), 14 deletions(-) (limited to 'include/asm-arm') diff --git a/include/asm-arm/arch-clps711x/uncompress.h b/include/asm-arm/arch-clps711x/uncompress.h index 7d0ab791b16..9fc4bcfa168 100644 --- a/include/asm-arm/arch-clps711x/uncompress.h +++ b/include/asm-arm/arch-clps711x/uncompress.h @@ -19,7 +19,7 @@ */ #include #include -#include +#include #include #undef CLPS7111_BASE diff --git a/include/asm-arm/arch-epxa10db/uncompress.h b/include/asm-arm/arch-epxa10db/uncompress.h index d33ad6a9374..fdfe0e6848f 100644 --- a/include/asm-arm/arch-epxa10db/uncompress.h +++ b/include/asm-arm/arch-epxa10db/uncompress.h @@ -19,7 +19,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "asm/arch/platform.h" -#include "asm/arch/hardware.h" +#include "asm/hardware.h" #define UART00_TYPE (volatile unsigned int*) #include "asm/arch/uart00.h" diff --git a/include/asm-arm/arch-h720x/uncompress.h b/include/asm-arm/arch-h720x/uncompress.h index 2fffacf85a0..9535764bcc7 100644 --- a/include/asm-arm/arch-h720x/uncompress.h +++ b/include/asm-arm/arch-h720x/uncompress.h @@ -7,7 +7,7 @@ #ifndef __ASM_ARCH_UNCOMPRESS_H #define __ASM_ARCH_UNCOMPRESS_H -#include +#include #define LSR 0x14 #define TEMPTY 0x40 diff --git a/include/asm-arm/arch-imx/irqs.h b/include/asm-arm/arch-imx/irqs.h index 238197cfb9d..f195542898e 100644 --- a/include/asm-arm/arch-imx/irqs.h +++ b/include/asm-arm/arch-imx/irqs.h @@ -23,7 +23,7 @@ #define __ARM_IRQS_H__ /* Use the imx definitions */ -#include +#include /* * IMX Interrupt numbers diff --git a/include/asm-arm/arch-imx/timex.h b/include/asm-arm/arch-imx/timex.h index d65ab3cd5d5..8c91674706b 100644 --- a/include/asm-arm/arch-imx/timex.h +++ b/include/asm-arm/arch-imx/timex.h @@ -21,7 +21,7 @@ #ifndef __ASM_ARCH_TIMEX_H #define __ASM_ARCH_TIMEX_H -#include +#include #define CLOCK_TICK_RATE (CLK32) #endif diff --git a/include/asm-arm/arch-integrator/smp.h b/include/asm-arm/arch-integrator/smp.h index 0ec7093f7c3..da6981efdc3 100644 --- a/include/asm-arm/arch-integrator/smp.h +++ b/include/asm-arm/arch-integrator/smp.h @@ -3,7 +3,7 @@ #include -#include +#include #include #define hard_smp_processor_id() \ diff --git a/include/asm-arm/arch-l7200/aux_reg.h b/include/asm-arm/arch-l7200/aux_reg.h index 762cbc76c50..5b4396de16a 100644 --- a/include/asm-arm/arch-l7200/aux_reg.h +++ b/include/asm-arm/arch-l7200/aux_reg.h @@ -9,7 +9,7 @@ #ifndef _ASM_ARCH_AUXREG_H #define _ASM_ARCH_AUXREG_H -#include +#include #define l7200aux_reg *((volatile unsigned int *) (AUX_BASE)) diff --git a/include/asm-arm/arch-l7200/gp_timers.h b/include/asm-arm/arch-l7200/gp_timers.h index 6f20962df24..9c4804d1357 100644 --- a/include/asm-arm/arch-l7200/gp_timers.h +++ b/include/asm-arm/arch-l7200/gp_timers.h @@ -10,7 +10,7 @@ #ifndef _ASM_ARCH_GPTIMERS_H #define _ASM_ARCH_GPTIMERS_H -#include +#include /* * Layout of L7200 general purpose timer registers diff --git a/include/asm-arm/arch-omap/gpio.h b/include/asm-arm/arch-omap/gpio.h index 1b3885741ac..f486b72070e 100644 --- a/include/asm-arm/arch-omap/gpio.h +++ b/include/asm-arm/arch-omap/gpio.h @@ -26,7 +26,7 @@ #ifndef __ASM_ARCH_OMAP_GPIO_H #define __ASM_ARCH_OMAP_GPIO_H -#include +#include #include #include diff --git a/include/asm-arm/arch-omap/irqs.h b/include/asm-arm/arch-omap/irqs.h index 9779686bdce..4ffce1d7775 100644 --- a/include/asm-arm/arch-omap/irqs.h +++ b/include/asm-arm/arch-omap/irqs.h @@ -260,7 +260,7 @@ extern void omap_init_irq(void); * The definition of NR_IRQS is in board-specific header file, which is * included via hardware.h */ -#include +#include #ifndef NR_IRQS #define NR_IRQS IH_BOARD_BASE diff --git a/include/asm-arm/arch-omap/mcbsp.h b/include/asm-arm/arch-omap/mcbsp.h index 305bdeb16ab..e79d98ab2ab 100644 --- a/include/asm-arm/arch-omap/mcbsp.h +++ b/include/asm-arm/arch-omap/mcbsp.h @@ -24,7 +24,7 @@ #ifndef __ASM_ARCH_OMAP_MCBSP_H #define __ASM_ARCH_OMAP_MCBSP_H -#include +#include #define OMAP730_MCBSP1_BASE 0xfffb1000 #define OMAP730_MCBSP2_BASE 0xfffb1800 diff --git a/include/asm-arm/arch-omap/system.h b/include/asm-arm/arch-omap/system.h index b43cdd2a387..9af415d2944 100644 --- a/include/asm-arm/arch-omap/system.h +++ b/include/asm-arm/arch-omap/system.h @@ -7,7 +7,7 @@ #include #include #include -#include +#include #include #ifndef CONFIG_MACH_VOICEBLUE diff --git a/include/asm-arm/arch-rpc/system.h b/include/asm-arm/arch-rpc/system.h index ca3277d1d5e..729c2ae4b51 100644 --- a/include/asm-arm/arch-rpc/system.h +++ b/include/asm-arm/arch-rpc/system.h @@ -7,7 +7,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include +#include #include #include diff --git a/include/asm-arm/hardware/dec21285.h b/include/asm-arm/hardware/dec21285.h index 9049f0ddaec..6685e3fb97b 100644 --- a/include/asm-arm/hardware/dec21285.h +++ b/include/asm-arm/hardware/dec21285.h @@ -20,7 +20,7 @@ #include #ifndef __ASSEMBLY__ -#include +#include #define DC21285_IO(x) ((volatile unsigned long *)(ARMCSR_BASE+(x))) #else #define DC21285_IO(x) (x) -- cgit v1.2.3 From a7d068336197945dc4af65c5973c996e526d51cb Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 16 Nov 2005 15:05:11 +0000 Subject: [ARM] 3165/1: fix atomic_cmpxchg() implementation for ARMv6+ Patch from Nicolas Pitre If 'old' and 'oldval' are different then 'res' never gets set. In that case, if ever %0 happened to contain anything but zero (rather likely) then the code will loop forever (or until another CPU just come along and change the atomic value to match 'old' which is rather unlikely). Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- include/asm-arm/atomic.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/asm-arm') diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h index 75b80271972..5f827509e92 100644 --- a/include/asm-arm/atomic.h +++ b/include/asm-arm/atomic.h @@ -87,6 +87,7 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) do { __asm__ __volatile__("@ atomic_cmpxchg\n" "ldrex %1, [%2]\n" + "mov %0, #0\n" "teq %1, %3\n" "strexeq %0, %4, [%2]\n" : "=&r" (res), "=&r" (oldval) -- cgit v1.2.3 From 8dc39b883e9497445b53c498be7493c3e43af006 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Nov 2005 17:23:57 +0000 Subject: [ARM] Add linux/compiler.h includes where required atomic.h, bitops.h and mmu_context.h are using likely/unlikely. thread_info.h uses __attribute_const__. Hence these files require linux/compiler.h to be included. Signed-off-by: Russell King --- include/asm-arm/atomic.h | 1 + include/asm-arm/bitops.h | 1 + include/asm-arm/mmu_context.h | 1 + include/asm-arm/thread_info.h | 1 + 4 files changed, 4 insertions(+) (limited to 'include/asm-arm') diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h index 5f827509e92..d8ba0a9eb08 100644 --- a/include/asm-arm/atomic.h +++ b/include/asm-arm/atomic.h @@ -12,6 +12,7 @@ #define __ASM_ARM_ATOMIC_H #include +#include typedef struct { volatile int counter; } atomic_t; diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h index e007dd990da..7399d431edf 100644 --- a/include/asm-arm/bitops.h +++ b/include/asm-arm/bitops.h @@ -19,6 +19,7 @@ #ifdef __KERNEL__ +#include #include #define smp_mb__before_clear_bit() mb() diff --git a/include/asm-arm/mmu_context.h b/include/asm-arm/mmu_context.h index 3d4b810d8c3..81c59facea3 100644 --- a/include/asm-arm/mmu_context.h +++ b/include/asm-arm/mmu_context.h @@ -13,6 +13,7 @@ #ifndef __ASM_ARM_MMU_CONTEXT_H #define __ASM_ARM_MMU_CONTEXT_H +#include #include #include diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h index 8252a4cd860..7c98557b717 100644 --- a/include/asm-arm/thread_info.h +++ b/include/asm-arm/thread_info.h @@ -12,6 +12,7 @@ #ifdef __KERNEL__ +#include #include #define THREAD_SIZE_ORDER 1 -- cgit v1.2.3 From 1b12050f17460dc312cfd8cc59c79e181b23062b Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Nov 2005 17:38:40 +0000 Subject: [ARM] Move zone adjustment for SA1111 on SA11x0 platforms Unfortunately, using PAGE_SHIFT in asm/arch/memory.h is unsafe, and we can't include asm/page.h into this file because then we have a circular dependency. Move the offending code to arch/arm/common/sa1111.c instead. Signed-off-by: Russell King --- include/asm-arm/arch-sa1100/memory.h | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'include/asm-arm') diff --git a/include/asm-arm/arch-sa1100/memory.h b/include/asm-arm/arch-sa1100/memory.h index 0fc555b4c91..018a9f0e398 100644 --- a/include/asm-arm/arch-sa1100/memory.h +++ b/include/asm-arm/arch-sa1100/memory.h @@ -18,20 +18,10 @@ #ifndef __ASSEMBLY__ #ifdef CONFIG_SA1111 -static inline void -__arch_adjust_zones(int node, unsigned long *size, unsigned long *holes) -{ - unsigned int sz = SZ_1M >> PAGE_SHIFT; - - if (node != 0) - sz = 0; - - size[1] = size[0] - sz; - size[0] = sz; -} +void sa1111_adjust_zones(int node, unsigned long *size, unsigned long *holes); #define arch_adjust_zones(node, size, holes) \ - __arch_adjust_zones(node, size, holes) + sa1111_adjust_zones(node, size, holes) #define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_1M - 1) -- cgit v1.2.3 From 49ee57a3295a227b6a02785f75ccd521e493e983 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Nov 2005 18:03:10 +0000 Subject: [ARM] Use unsigned long not u32 in atomic_cmpxchg Since atomic.h does not include types.h, u32 may not be defined. Since atomics are supposed to work on unsigned long quantities, use unsigned long instead. Signed-off-by: Russell King --- include/asm-arm/atomic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/asm-arm') diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h index d8ba0a9eb08..d586f65c822 100644 --- a/include/asm-arm/atomic.h +++ b/include/asm-arm/atomic.h @@ -83,7 +83,7 @@ static inline int atomic_sub_return(int i, atomic_t *v) static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) { - u32 oldval, res; + unsigned long oldval, res; do { __asm__ __volatile__("@ atomic_cmpxchg\n" -- cgit v1.2.3 From 5470dc656820fb67c0a2e352f0aaa48b86c19026 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 16 Nov 2005 18:36:49 +0000 Subject: [ARM] No need to include asm/proc-fns.h into asm/system.h In the old days when arm26/arm32 was combined into the same architecture, proc-fns.h provided the xchg implementation for arm26 CPUs. Since we no longer combine these two, this include is no longer required. Remove it. Signed-off-by: Russell King --- include/asm-arm/system.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/asm-arm') diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index 8efa4ebdcac..5621d61ebc0 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -93,8 +93,6 @@ void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *), int sig, const char *name); -#include - #define xchg(ptr,x) \ ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) @@ -102,6 +100,8 @@ void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, extern asmlinkage void __backtrace(void); extern asmlinkage void c_backtrace(unsigned long fp, int pmode); + +struct mm_struct; extern void show_pte(struct mm_struct *mm, unsigned long addr); extern void __show_regs(struct pt_regs *); -- cgit v1.2.3