From: Magnus Damm <magnus.damm@gmail.com> To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 06/08] ARM: Add setup_irq_stubs() function Date: Wed, 06 Oct 2010 07:18:21 +0000 [thread overview] Message-ID: <20101006071821.28048.16107.sendpatchset@t400s> (raw) In-Reply-To: <20101006071731.28048.89938.sendpatchset@t400s> From: Magnus Damm <damm@opensource.se> Add a setup_irq_stubs() function to allow registration of per-mach/plat IRQ demux routines. Signed-off-by: Magnus Damm <damm@opensource.se> --- arch/arm/include/asm/traps.h | 1 + arch/arm/kernel/entry-armv.S | 2 ++ arch/arm/kernel/traps.c | 14 ++++++++++++++ 3 files changed, 17 insertions(+) --- 0001/arch/arm/include/asm/traps.h +++ work/arch/arm/include/asm/traps.h 2010-10-05 20:26:18.000000000 +0900 @@ -24,6 +24,7 @@ static inline int in_exception_text(unsi ptr < (unsigned long)&__exception_text_end; } +extern void __init setup_irq_stubs(void *irq_usr, void *irq_svr); extern void __init early_trap_init(void); extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame); --- 0008/arch/arm/kernel/entry-armv.S +++ work/arch/arm/kernel/entry-armv.S 2010-10-05 20:28:22.000000000 +0900 @@ -883,6 +883,8 @@ __stubs_start: */ vector_stub irq, IRQ_MODE, 4 + .globl __stubs_irq +__stubs_irq: .long __irq_usr_default @ 0 (USR_26 / USR_32) .long __irq_invalid @ 1 (FIQ_26 / FIQ_32) .long __irq_invalid @ 2 (IRQ_26 / IRQ_32) --- 0001/arch/arm/kernel/traps.c +++ work/arch/arm/kernel/traps.c 2010-10-05 20:27:11.000000000 +0900 @@ -757,6 +757,20 @@ static void __init kuser_get_tls_init(un memcpy((void *)vectors + 0xfe0, (void *)vectors + 0xfe8, 4); } +void __init setup_irq_stubs(void *usr_handler, void *svc_handler) +{ + unsigned long vectors = CONFIG_VECTORS_BASE; + extern char __stubs_start[], __stubs_irq[]; + void **stubs_ptr; + + stubs_ptr = (void *)vectors + 0x200 + (__stubs_irq - __stubs_start); + + stubs_ptr[0] = usr_handler; + stubs_ptr[3] = svc_handler; + + flush_icache_range(vectors, vectors + PAGE_SIZE); +} + void __init early_trap_init(void) { unsigned long vectors = CONFIG_VECTORS_BASE;
WARNING: multiple messages have this Message-ID (diff)
From: magnus.damm@gmail.com (Magnus Damm) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 06/08] ARM: Add setup_irq_stubs() function Date: Wed, 06 Oct 2010 16:18:21 +0900 [thread overview] Message-ID: <20101006071821.28048.16107.sendpatchset@t400s> (raw) In-Reply-To: <20101006071731.28048.89938.sendpatchset@t400s> From: Magnus Damm <damm@opensource.se> Add a setup_irq_stubs() function to allow registration of per-mach/plat IRQ demux routines. Signed-off-by: Magnus Damm <damm@opensource.se> --- arch/arm/include/asm/traps.h | 1 + arch/arm/kernel/entry-armv.S | 2 ++ arch/arm/kernel/traps.c | 14 ++++++++++++++ 3 files changed, 17 insertions(+) --- 0001/arch/arm/include/asm/traps.h +++ work/arch/arm/include/asm/traps.h 2010-10-05 20:26:18.000000000 +0900 @@ -24,6 +24,7 @@ static inline int in_exception_text(unsi ptr < (unsigned long)&__exception_text_end; } +extern void __init setup_irq_stubs(void *irq_usr, void *irq_svr); extern void __init early_trap_init(void); extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame); --- 0008/arch/arm/kernel/entry-armv.S +++ work/arch/arm/kernel/entry-armv.S 2010-10-05 20:28:22.000000000 +0900 @@ -883,6 +883,8 @@ __stubs_start: */ vector_stub irq, IRQ_MODE, 4 + .globl __stubs_irq +__stubs_irq: .long __irq_usr_default @ 0 (USR_26 / USR_32) .long __irq_invalid @ 1 (FIQ_26 / FIQ_32) .long __irq_invalid @ 2 (IRQ_26 / IRQ_32) --- 0001/arch/arm/kernel/traps.c +++ work/arch/arm/kernel/traps.c 2010-10-05 20:27:11.000000000 +0900 @@ -757,6 +757,20 @@ static void __init kuser_get_tls_init(un memcpy((void *)vectors + 0xfe0, (void *)vectors + 0xfe8, 4); } +void __init setup_irq_stubs(void *usr_handler, void *svc_handler) +{ + unsigned long vectors = CONFIG_VECTORS_BASE; + extern char __stubs_start[], __stubs_irq[]; + void **stubs_ptr; + + stubs_ptr = (void *)vectors + 0x200 + (__stubs_irq - __stubs_start); + + stubs_ptr[0] = usr_handler; + stubs_ptr[3] = svc_handler; + + flush_icache_range(vectors, vectors + PAGE_SIZE); +} + void __init early_trap_init(void) { unsigned long vectors = CONFIG_VECTORS_BASE;
next prev parent reply other threads:[~2010-10-06 7:18 UTC|newest] Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-10-06 7:17 [PATCH 00/08] ARM: Dynamic IRQ demux support Magnus Damm 2010-10-06 7:17 ` Magnus Damm 2010-10-06 7:17 ` [PATCH 01/08] ARM: Move entry-header.S to asm/ Magnus Damm 2010-10-06 7:17 ` Magnus Damm 2010-10-06 7:17 ` [PATCH 02/08] ARM: Move macros from entry-armv.S Magnus Damm 2010-10-06 7:17 ` Magnus Damm 2010-10-06 7:17 ` [PATCH 03/08] ARM: Make alignment_trap macro self-contained Magnus Damm 2010-10-06 7:17 ` Magnus Damm 2010-10-06 7:18 ` [PATCH 04/08] ARM: Convert __irq_svc and __usr_svc to macros Magnus Damm 2010-10-06 7:18 ` Magnus Damm 2010-10-06 7:18 ` [PATCH 05/08] ARM: Move the unwind header to entry-header.S Magnus Damm 2010-10-06 7:18 ` Magnus Damm 2010-10-06 7:18 ` Magnus Damm [this message] 2010-10-06 7:18 ` [PATCH 06/08] ARM: Add setup_irq_stubs() function Magnus Damm 2010-10-06 7:18 ` [PATCH 07/08] ARM: Add CONFIG_DEFAULT_IRQ_DEMUX Magnus Damm 2010-10-06 7:18 ` Magnus Damm 2010-10-06 7:18 ` [PATCH 08/08] ARM: Dynamic IRQ demux for SH-Mobile Magnus Damm 2010-10-06 7:18 ` Magnus Damm 2010-10-06 13:06 ` [PATCH 00/08] ARM: Dynamic IRQ demux support Eric Miao 2010-10-06 13:06 ` Eric Miao 2010-10-06 14:58 ` Grant Likely 2010-10-06 14:58 ` Grant Likely 2010-10-06 15:06 ` Eric Miao 2010-10-06 15:06 ` Eric Miao 2010-10-06 15:11 ` Eric Miao 2010-10-06 15:11 ` Eric Miao 2010-10-06 15:26 ` Grant Likely 2010-10-06 15:26 ` Grant Likely 2010-10-06 15:38 ` Eric Miao 2010-10-06 15:38 ` Eric Miao 2010-10-07 6:39 ` Magnus Damm 2010-10-07 6:39 ` Magnus Damm 2010-10-08 7:09 ` Eric Miao 2010-10-08 7:09 ` Eric Miao 2010-10-14 10:50 ` Magnus Damm 2010-10-14 10:50 ` Magnus Damm 2010-10-16 3:53 ` Grant Likely 2010-10-16 3:53 ` Grant Likely
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