From 550f9a075207b6b3f398d292ccae7335eba38189 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Wed, 1 Apr 2015 14:01:14 +0200
Subject: XXX pmm from x15, userspace crashes soon
---
i386/x15/param.h | 185 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 185 insertions(+)
create mode 100644 i386/x15/param.h
(limited to 'i386/x15/param.h')
diff --git a/i386/x15/param.h b/i386/x15/param.h
new file mode 100644
index 0000000..f8f9c33
--- /dev/null
+++ b/i386/x15/param.h
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2010-2014 Richard Braun.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ *
+ * This file is a top header in the inclusion hierarchy, and shouldn't include
+ * other headers that may cause circular dependencies.
+ */
+
+#ifndef _X86_PARAM_H
+#define _X86_PARAM_H
+
+#include
+
+#define __LITTLE_ENDIAN__
+
+/*
+ * L1 cache line size.
+ *
+ * XXX Use this value until processor selection is available.
+ */
+#define CPU_L1_SIZE 64
+
+/*
+ * Code/data alignment.
+ */
+#define TEXT_ALIGN 16
+
+#ifdef __LP64__
+#define DATA_ALIGN 8
+#else /* __LP64__ */
+#define DATA_ALIGN 4
+#endif /* __LP64__ */
+
+/*
+ * Attributes for variables that are mostly read and seldom changed.
+ */
+#define __read_mostly __section(".data.read_mostly")
+
+/*
+ * Provide architecture-specific string functions.
+ */
+#define ARCH_STRING_MEMCPY
+#define ARCH_STRING_MEMMOVE
+#define ARCH_STRING_MEMSET
+#define ARCH_STRING_MEMCMP
+#define ARCH_STRING_STRLEN
+#define ARCH_STRING_STRCPY
+#define ARCH_STRING_STRCMP
+
+/*
+ * System timer frequency.
+ *
+ * The selected value of 200 translates to a period of 5ms, small enough to
+ * provide low latency, and is practical as both a dividend and divisor.
+ */
+#define HZ 200
+
+/*
+ * 4 KiB pages.
+ */
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (1 << PAGE_SHIFT)
+#define PAGE_MASK (PAGE_SIZE - 1)
+
+/*
+ * Kernel stack size for threads and interrupt handlers.
+ */
+#define STACK_SIZE PAGE_SIZE
+
+/*
+ * Virtual memory properties.
+ */
+
+/*
+ * User space boundaries.
+ */
+#define VM_MIN_ADDRESS DECL_CONST(0, UL)
+
+#ifdef __LP64__
+#define VM_MAX_ADDRESS DECL_CONST(0x800000000000, UL)
+#else /* __LP64__ */
+#define VM_MAX_ADDRESS DECL_CONST(0xc0000000, UL)
+#endif/* __LP64__ */
+
+/*
+ * Kernel space boundaries.
+ */
+#ifdef __LP64__
+#define VM_MIN_KERNEL_ADDRESS DECL_CONST(0xffff800000000000, UL)
+#define VM_MAX_KERNEL_ADDRESS DECL_CONST(0xfffffffffffff000, UL)
+#else /* __LP64__ */
+#define VM_MIN_KERNEL_ADDRESS VM_MAX_ADDRESS
+#define VM_MAX_KERNEL_ADDRESS DECL_CONST(0xfffff000, UL)
+#endif /* __LP64__ */
+
+/*
+ * Direct physical mapping boundaries.
+ */
+#ifdef __LP64__
+#define VM_MIN_DIRECTMAP_ADDRESS VM_MIN_KERNEL_ADDRESS
+#define VM_MAX_DIRECTMAP_ADDRESS DECL_CONST(0xffffc00000000000, UL)
+#else /* __LP64__ */
+#define VM_MIN_DIRECTMAP_ADDRESS VM_MAX_ADDRESS
+#define VM_MAX_DIRECTMAP_ADDRESS DECL_CONST(0xf8000000, UL)
+#endif /* __LP64__ */
+
+/*
+ * Kernel mapping offset.
+ *
+ * On 32-bits systems, the kernel is linked at addresses included in the
+ * direct physical mapping, whereas on 64-bits systems, it is linked at
+ * -2 GiB because the "kernel" memory model is used when compiling (see
+ * the -mcmodel=kernel gcc option).
+ */
+#ifdef __LP64__
+#define VM_KERNEL_OFFSET DECL_CONST(0xffffffff80000000, UL)
+#else /* __LP64__ */
+#define VM_KERNEL_OFFSET VM_MIN_DIRECTMAP_ADDRESS
+#endif /* __LP64__ */
+
+/*
+ * Kernel virtual space boundaries.
+ *
+ * In addition to the direct physical mapping, the kernel has its own virtual
+ * memory space.
+ */
+#define VM_MIN_KMEM_ADDRESS VM_MAX_DIRECTMAP_ADDRESS
+
+#ifdef __LP64__
+#define VM_MAX_KMEM_ADDRESS VM_KERNEL_OFFSET
+#else /* __LP64__ */
+#define VM_MAX_KMEM_ADDRESS DECL_CONST(0xfffff000, UL)
+#endif /* __LP64__ */
+
+/*
+ * Physical memory properties.
+ */
+
+#define VM_PAGE_DMA_LIMIT DECL_CONST(0x1000000, UL)
+
+#ifdef __LP64__
+#define VM_PAGE_MAX_SEGS 4
+#define VM_PAGE_DMA32_LIMIT DECL_CONST(0x100000000, UL)
+#define VM_PAGE_DIRECTMAP_LIMIT DECL_CONST(0x400000000000, UL)
+#define VM_PAGE_HIGHMEM_LIMIT DECL_CONST(0x10000000000000, UL)
+#else /* __LP64__ */
+#define VM_PAGE_DIRECTMAP_LIMIT DECL_CONST(0x38000000, ULL)
+#ifdef X86_PAE
+#define VM_PAGE_MAX_SEGS 3
+#define VM_PAGE_HIGHMEM_LIMIT DECL_CONST(0x10000000000000, ULL)
+#else /* X86_PAE */
+#define VM_PAGE_MAX_SEGS 3
+#define VM_PAGE_HIGHMEM_LIMIT DECL_CONST(0xfffff000, UL)
+#endif /* X86_PAE */
+#endif /* __LP64__ */
+
+/*
+ * Physical segment indexes.
+ */
+#define VM_PAGE_SEG_DMA 0
+
+#ifdef __LP64__
+#define VM_PAGE_SEG_DMA32 1
+#define VM_PAGE_SEG_DIRECTMAP 2
+#define VM_PAGE_SEG_HIGHMEM 3
+#else /* __LP64__ */
+#define VM_PAGE_SEG_DMA32 1 /* Alias for the DIRECTMAP segment */
+#define VM_PAGE_SEG_DIRECTMAP 1
+#define VM_PAGE_SEG_HIGHMEM 2
+#endif /* __LP64__ */
+
+#endif /* _X86_PARAM_H */
--
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