From: Magnus Damm <magnus.damm@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/02][RFC] ARM: Introduce Subarch IRQ handler macros
Date: Fri, 10 Dec 2010 05:58:44 +0000 [thread overview]
Message-ID: <20101210055844.8635.36194.sendpatchset@t400s> (raw)
In-Reply-To: <20101210055835.8635.98614.sendpatchset@t400s>
From: Magnus Damm <damm@opensource.se>
Break out code from the irq_handler macro into the two
macros arch_irq_handler and arch_irq_handler_default.
Put the macros in the header file "entry-macro-multi.S"
The macro arch_irq_handler_default is designed to be
used by the irq_handler macro in entry-armv.S while
arch_irq_handler is suitable for per-subarch use.
Signed-off-by: Magnus Damm <damm@opensource.se>
---
arch/arm/include/asm/entry-macro-multi.S | 43 ++++++++++++++++++++++++++++++
arch/arm/kernel/entry-armv.S | 31 +--------------------
2 files changed, 45 insertions(+), 29 deletions(-)
--- /dev/null
+++ work/arch/arm/include/asm/entry-macro-multi.S 2010-12-09 23:07:01.000000000 +0900
@@ -0,0 +1,43 @@
+/*
+ * Interrupt handling. Preserves r7, r8, r9
+ */
+ .macro arch_irq_handler_default
+ get_irqnr_preamble r5, lr
+1: get_irqnr_and_base r0, r6, r5, lr
+ movne r1, sp
+ @
+ @ routine called with r0 = irq number, r1 = struct pt_regs *
+ @
+ adrne lr, BSYM(1b)
+ bne asm_do_IRQ
+
+#ifdef CONFIG_SMP
+ /*
+ * XXX
+ *
+ * this macro assumes that irqstat (r6) and base (r5) are
+ * preserved from get_irqnr_and_base above
+ */
+ ALT_SMP(test_for_ipi r0, r6, r5, lr)
+ ALT_UP_B(9998f)
+ movne r1, sp
+ adrne lr, BSYM(1b)
+ bne do_IPI
+
+#ifdef CONFIG_LOCAL_TIMERS
+ test_for_ltirq r0, r6, r5, lr
+ movne r0, sp
+ adrne lr, BSYM(1b)
+ bne do_local_timer
+#endif
+9998:
+#endif
+ .endm
+
+ .macro arch_irq_handler, symbol_name
+ .align 5
+ .global \symbol_name
+\symbol_name:
+ arch_irq_handler_default
+ mov pc, lr
+ .endm
--- 0002/arch/arm/kernel/entry-armv.S
+++ work/arch/arm/kernel/entry-armv.S 2010-12-09 23:07:13.000000000 +0900
@@ -19,6 +19,7 @@
#include <asm/glue.h>
#include <asm/vfpmacros.h>
#include <mach/entry-macro.S>
+#include <asm/entry-macro-multi.S>
#include <asm/thread_notify.h>
#include <asm/unwind.h>
#include <asm/unistd.h>
@@ -38,35 +39,7 @@
adrne lr, BSYM(9997f)
ldrne pc, [r1]
#endif
- get_irqnr_preamble r5, lr
-1: get_irqnr_and_base r0, r6, r5, lr
- movne r1, sp
- @
- @ routine called with r0 = irq number, r1 = struct pt_regs *
- @
- adrne lr, BSYM(1b)
- bne asm_do_IRQ
-
-#ifdef CONFIG_SMP
- /*
- * XXX
- *
- * this macro assumes that irqstat (r6) and base (r5) are
- * preserved from get_irqnr_and_base above
- */
- ALT_SMP(test_for_ipi r0, r6, r5, lr)
- ALT_UP_B(9997f)
- movne r1, sp
- adrne lr, BSYM(1b)
- bne do_IPI
-
-#ifdef CONFIG_LOCAL_TIMERS
- test_for_ltirq r0, r6, r5, lr
- movne r0, sp
- adrne lr, BSYM(1b)
- bne do_local_timer
-#endif
-#endif
+ arch_irq_handler_default
9997:
.endm
WARNING: multiple messages have this Message-ID (diff)
From: magnus.damm@gmail.com (Magnus Damm)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/02][RFC] ARM: Introduce Subarch IRQ handler macros
Date: Fri, 10 Dec 2010 14:58:44 +0900 [thread overview]
Message-ID: <20101210055844.8635.36194.sendpatchset@t400s> (raw)
In-Reply-To: <20101210055835.8635.98614.sendpatchset@t400s>
From: Magnus Damm <damm@opensource.se>
Break out code from the irq_handler macro into the two
macros arch_irq_handler and arch_irq_handler_default.
Put the macros in the header file "entry-macro-multi.S"
The macro arch_irq_handler_default is designed to be
used by the irq_handler macro in entry-armv.S while
arch_irq_handler is suitable for per-subarch use.
Signed-off-by: Magnus Damm <damm@opensource.se>
---
arch/arm/include/asm/entry-macro-multi.S | 43 ++++++++++++++++++++++++++++++
arch/arm/kernel/entry-armv.S | 31 +--------------------
2 files changed, 45 insertions(+), 29 deletions(-)
--- /dev/null
+++ work/arch/arm/include/asm/entry-macro-multi.S 2010-12-09 23:07:01.000000000 +0900
@@ -0,0 +1,43 @@
+/*
+ * Interrupt handling. Preserves r7, r8, r9
+ */
+ .macro arch_irq_handler_default
+ get_irqnr_preamble r5, lr
+1: get_irqnr_and_base r0, r6, r5, lr
+ movne r1, sp
+ @
+ @ routine called with r0 = irq number, r1 = struct pt_regs *
+ @
+ adrne lr, BSYM(1b)
+ bne asm_do_IRQ
+
+#ifdef CONFIG_SMP
+ /*
+ * XXX
+ *
+ * this macro assumes that irqstat (r6) and base (r5) are
+ * preserved from get_irqnr_and_base above
+ */
+ ALT_SMP(test_for_ipi r0, r6, r5, lr)
+ ALT_UP_B(9998f)
+ movne r1, sp
+ adrne lr, BSYM(1b)
+ bne do_IPI
+
+#ifdef CONFIG_LOCAL_TIMERS
+ test_for_ltirq r0, r6, r5, lr
+ movne r0, sp
+ adrne lr, BSYM(1b)
+ bne do_local_timer
+#endif
+9998:
+#endif
+ .endm
+
+ .macro arch_irq_handler, symbol_name
+ .align 5
+ .global \symbol_name
+\symbol_name:
+ arch_irq_handler_default
+ mov pc, lr
+ .endm
--- 0002/arch/arm/kernel/entry-armv.S
+++ work/arch/arm/kernel/entry-armv.S 2010-12-09 23:07:13.000000000 +0900
@@ -19,6 +19,7 @@
#include <asm/glue.h>
#include <asm/vfpmacros.h>
#include <mach/entry-macro.S>
+#include <asm/entry-macro-multi.S>
#include <asm/thread_notify.h>
#include <asm/unwind.h>
#include <asm/unistd.h>
@@ -38,35 +39,7 @@
adrne lr, BSYM(9997f)
ldrne pc, [r1]
#endif
- get_irqnr_preamble r5, lr
-1: get_irqnr_and_base r0, r6, r5, lr
- movne r1, sp
- @
- @ routine called with r0 = irq number, r1 = struct pt_regs *
- @
- adrne lr, BSYM(1b)
- bne asm_do_IRQ
-
-#ifdef CONFIG_SMP
- /*
- * XXX
- *
- * this macro assumes that irqstat (r6) and base (r5) are
- * preserved from get_irqnr_and_base above
- */
- ALT_SMP(test_for_ipi r0, r6, r5, lr)
- ALT_UP_B(9997f)
- movne r1, sp
- adrne lr, BSYM(1b)
- bne do_IPI
-
-#ifdef CONFIG_LOCAL_TIMERS
- test_for_ltirq r0, r6, r5, lr
- movne r0, sp
- adrne lr, BSYM(1b)
- bne do_local_timer
-#endif
-#endif
+ arch_irq_handler_default
9997:
.endm
next prev parent reply other threads:[~2010-12-10 5:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-10 5:58 [PATCH 00/02][RFC] ARM: Subarch IRQ handler macro support Magnus Damm
2010-12-10 5:58 ` Magnus Damm
2010-12-10 5:58 ` Magnus Damm [this message]
2010-12-10 5:58 ` [PATCH 01/02][RFC] ARM: Introduce Subarch IRQ handler macros Magnus Damm
2010-12-10 5:58 ` [PATCH 02/02][RFC] ARM: shmobile: Use Subarch IRQ handler for INTC Magnus Damm
2010-12-10 5:58 ` Magnus Damm
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