From e879c862fb81b986095ae7a4676b2281c2f97957 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 1 Nov 2011 13:16:26 +0000 Subject: ARM: restart: only perform setup for restart when soft-restarting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We only need to set the system up for a soft-restart if we're going to be doing a soft-restart. Provide a new function (soft_restart()) which does the setup and final call for this, and make platforms use it. Eliminate the call to setup_restart() from the default handler. This means that platforms arch_reset() function is no longer called with the page tables prepared for a soft-restart, and caches will still be enabled. Acked-by: Nicolas Pitre Acked-by: Will Deacon Acked-by: H Hartley Sweeten Acked-by: Kukjin Kim Acked-by: Sascha Hauer Acked-by: Viresh Kumar Acked-by: Krzysztof Ha■asa Acked-by: Paul Mundt Acked-by: Richard Purdie Acked-by: Wan ZongShun Acked-by: Eric Miao Signed-off-by: Russell King --- arch/arm/include/asm/system.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/include/asm/system.h') diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 984014b9264..fe7de7571ba 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -101,6 +101,7 @@ extern int __pure cpu_architecture(void); extern void cpu_init(void); void arm_machine_restart(char mode, const char *cmd); +void soft_restart(unsigned long); extern void (*arm_pm_restart)(char str, const char *cmd); #define UDBG_UNDEFINED (1 << 0) -- cgit v1.2.3-18-g5258 From f7b8156d150f7383b42622a9219b230b36435b4a Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 22 Nov 2011 17:30:31 +0000 Subject: ARM: LPAE: Add fault handling support The DFSR and IFSR register format is different when LPAE is enabled. In addition, DFSR and IFSR have similar definitions for the fault type. This modifies the fault code to correctly handle the new format. Signed-off-by: Catalin Marinas --- arch/arm/include/asm/system.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/arm/include/asm/system.h') diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index fe7de7571ba..53785828744 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -80,6 +80,14 @@ struct siginfo; void arm_notify_die(const char *str, struct pt_regs *regs, struct siginfo *info, unsigned long err, unsigned long trap); +#ifdef CONFIG_ARM_LPAE +#define FAULT_CODE_ALIGNMENT 33 +#define FAULT_CODE_DEBUG 34 +#else +#define FAULT_CODE_ALIGNMENT 1 +#define FAULT_CODE_DEBUG 2 +#endif + void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *), int sig, int code, const char *name); -- cgit v1.2.3-18-g5258 From f88b8979d26615ce68772cebc85c3b556571afca Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 5 Nov 2011 21:30:00 +0000 Subject: ARM: restart: remove the now empty arch_reset() Remove the now empty arch_reset() from all the mach/system.h includes, and remove its callsite. Remove arm_machine_restart() as this function no longer does anything useful. For samsung platforms, remove the include of mach/system-reset.h and plat/system-reset.h from their respective mach/system.h headers as these just define their arch_reset functions. As a result, the s3c2410 and plat-samsung system-reset.h files are no longer referenced, so remove these files entirely. Acked-by: Nicolas Pitre Acked-by: H Hartley Sweeten Acked-by: Jamie Iles Acked-by: Tony Lindgren Acked-by: Linus Walleij Signed-off-by: Russell King --- arch/arm/include/asm/system.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm/include/asm/system.h') diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index fe7de7571ba..03775b14be8 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -100,7 +100,6 @@ extern void __show_regs(struct pt_regs *); extern int __pure cpu_architecture(void); extern void cpu_init(void); -void arm_machine_restart(char mode, const char *cmd); void soft_restart(unsigned long); extern void (*arm_pm_restart)(char str, const char *cmd); -- cgit v1.2.3-18-g5258