[PATCH v4 07/14] xen/asm-generic: introduce generalized hardirq.h

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

<asm/hardirq.h> is common through archs thereby it is moved
to asm-generic.

Arm and PPC were switched to asm generic verstion of hardirq.h.

Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
Changes in V4:
 - Added Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>.
 - Added Acked-by: Julien Grall <jgrall@xxxxxxxxxx>.
---
Changes in V3:
 - Drop Arm and PPC's hardirq.h
 - Update the commit message.
---
Changes in V2:
        - add #include <xen/cache.h>.
        - update the commit message
---
 xen/arch/arm/include/asm/Makefile             |  1 +
 xen/arch/ppc/include/asm/Makefile             |  1 +
 xen/arch/ppc/include/asm/hardirq.h            | 19 -------------------
 .../asm => include/asm-generic}/hardirq.h     |  8 +++++---
 4 files changed, 7 insertions(+), 22 deletions(-)
 delete mode 100644 xen/arch/ppc/include/asm/hardirq.h
 rename xen/{arch/arm/include/asm => include/asm-generic}/hardirq.h (79%)

diff --git a/xen/arch/arm/include/asm/Makefile 
b/xen/arch/arm/include/asm/Makefile
index 60bb78fc09..f6f108bbb8 100644
--- a/xen/arch/arm/include/asm/Makefile
+++ b/xen/arch/arm/include/asm/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 generic-y += device.h
+generic-y += hardirq.h
 generic-y += iocap.h
 generic-y += paging.h
 generic-y += percpu.h
diff --git a/xen/arch/ppc/include/asm/Makefile 
b/xen/arch/ppc/include/asm/Makefile
index edef0fab78..3241236c64 100644
--- a/xen/arch/ppc/include/asm/Makefile
+++ b/xen/arch/ppc/include/asm/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 generic-y += device.h
+generic-y += hardirq.h
 generic-y += hypercall.h
 generic-y += iocap.h
 generic-y += paging.h
diff --git a/xen/arch/ppc/include/asm/hardirq.h 
b/xen/arch/ppc/include/asm/hardirq.h
deleted file mode 100644
index 343efc7e69..0000000000
--- a/xen/arch/ppc/include/asm/hardirq.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-#ifndef __ASM_PPC_HARDIRQ_H__
-#define __ASM_PPC_HARDIRQ_H__
-
-#include <xen/cache.h>
-
-typedef struct {
-        unsigned long __softirq_pending;
-        unsigned int __local_irq_count;
-} __cacheline_aligned irq_cpustat_t;
-
-#include <xen/irq_cpustat.h>    /* Standard mappings for irq_cpustat_t above */
-
-#define in_irq() (local_irq_count(smp_processor_id()) != 0)
-
-#define irq_enter()     (local_irq_count(smp_processor_id())++)
-#define irq_exit()      (local_irq_count(smp_processor_id())--)
-
-#endif /* __ASM_PPC_HARDIRQ_H__ */
diff --git a/xen/arch/arm/include/asm/hardirq.h 
b/xen/include/asm-generic/hardirq.h
similarity index 79%
rename from xen/arch/arm/include/asm/hardirq.h
rename to xen/include/asm-generic/hardirq.h
index 67b6a673db..ddccf460b9 100644
--- a/xen/arch/arm/include/asm/hardirq.h
+++ b/xen/include/asm-generic/hardirq.h
@@ -1,5 +1,6 @@
-#ifndef __ASM_HARDIRQ_H
-#define __ASM_HARDIRQ_H
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_GENERIC_HARDIRQ_H
+#define __ASM_GENERIC_HARDIRQ_H
 
 #include <xen/cache.h>
 #include <xen/smp.h>
@@ -16,7 +17,8 @@ typedef struct {
 #define irq_enter()     (local_irq_count(smp_processor_id())++)
 #define irq_exit()      (local_irq_count(smp_processor_id())--)
 
-#endif /* __ASM_HARDIRQ_H */
+#endif /* __ASM_GENERIC_HARDIRQ_H */
+
 /*
  * Local variables:
  * mode: C
-- 
2.43.0