From: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
Date: Tue, 4 Mar 2025 17:57:07 +0000 (+0000)
Subject: xen/arm: mpu: Move some of the definitions to common file
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=9e6c7b78f2d53a70c4a10a9f7c7850c436ec94ae;p=people%2Froyger%2Fxen.git

xen/arm: mpu: Move some of the definitions to common file

For AArch32, refer to ARM DDI 0568A.c ID110520.
MPU_REGION_SHIFT is same between AArch32 and AArch64 (HPRBAR).
Also, NUM_MPU_REGIONS_SHIFT is same between AArch32 and AArch64
(HMPUIR).

Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
Reviewed-by: Luca Fancellu <luca.fancellu@arm.com>
Acked-by: Michal Orzel <michal.orzel@amd.com>
---

diff --git a/xen/arch/arm/arm64/mpu/head.S b/xen/arch/arm/arm64/mpu/head.S
index e4f2021f45..4d00de4869 100644
--- a/xen/arch/arm/arm64/mpu/head.S
+++ b/xen/arch/arm/arm64/mpu/head.S
@@ -3,8 +3,8 @@
  * Start-of-day code for an Armv8-R MPU system.
  */
 
-#include <asm/arm64/mpu.h>
 #include <asm/early_printk.h>
+#include <asm/mpu.h>
 
 /* Backgroud region enable/disable */
 #define SCTLR_ELx_BR    BIT(17, UL)
diff --git a/xen/arch/arm/include/asm/arm64/mpu.h b/xen/arch/arm/include/asm/arm64/mpu.h
deleted file mode 100644
index f8a029f1a1..0000000000
--- a/xen/arch/arm/include/asm/arm64/mpu.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * mpu.h: Arm Memory Protection Unit definitions.
- */
-
-#ifndef __ARM64_MPU_H__
-#define __ARM64_MPU_H__
-
-#define MPU_REGION_SHIFT  6
-#define MPU_REGION_ALIGN  (_AC(1, UL) << MPU_REGION_SHIFT)
-#define MPU_REGION_MASK   (~(MPU_REGION_ALIGN - 1))
-
-#define NUM_MPU_REGIONS_SHIFT   8
-#define NUM_MPU_REGIONS         (_AC(1, UL) << NUM_MPU_REGIONS_SHIFT)
-#define NUM_MPU_REGIONS_MASK    (NUM_MPU_REGIONS - 1)
-#endif /* __ARM64_MPU_H__ */
-
-/*
- * Local variables:
- * mode: C
- * c-file-style: "BSD"
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- */
diff --git a/xen/arch/arm/include/asm/early_printk.h b/xen/arch/arm/include/asm/early_printk.h
index 219705a8b6..a8af5bbd4b 100644
--- a/xen/arch/arm/include/asm/early_printk.h
+++ b/xen/arch/arm/include/asm/early_printk.h
@@ -11,8 +11,8 @@
 #define __ARM_EARLY_PRINTK_H__
 
 #include <xen/page-size.h>
-#include <asm/arm64/mpu.h>
 #include <asm/fixmap.h>
+#include <asm/mpu.h>
 
 #ifdef CONFIG_EARLY_PRINTK
 
diff --git a/xen/arch/arm/include/asm/mpu.h b/xen/arch/arm/include/asm/mpu.h
new file mode 100644
index 0000000000..d4ec4248b6
--- /dev/null
+++ b/xen/arch/arm/include/asm/mpu.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * mpu.h: Arm Memory Protection Unit definitions.
+ */
+
+#ifndef __ARM_MPU_H__
+#define __ARM_MPU_H__
+
+#define MPU_REGION_SHIFT  6
+#define MPU_REGION_ALIGN  (_AC(1, UL) << MPU_REGION_SHIFT)
+#define MPU_REGION_MASK   (~(MPU_REGION_ALIGN - 1))
+
+#define NUM_MPU_REGIONS_SHIFT   8
+#define NUM_MPU_REGIONS         (_AC(1, UL) << NUM_MPU_REGIONS_SHIFT)
+#define NUM_MPU_REGIONS_MASK    (NUM_MPU_REGIONS - 1)
+
+#endif /* __ARM_MPU_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */