Initial commit

include/l4/glue/tests/memlayout.h

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+/*
+ * Mock-up memory layout definitions for test purposes.
+ *
+ * Copyright (C) 2007 Bahadir Balban
+ *
+ */
+
+#ifndef __BASICLAYOUT_H__
+#define __BASICLAYOUT_H__
+
+
+#ifndef __ASSEMBLY__
+#include INC_GLUE(memory.h)
+#endif
+#include INC_PLAT(offsets.h)
+
+#define RESERVED_AREA_START	0x0
+#define RESERVED_AREA_END	0x00400000
+#define RESERVED_AREA_SIZE	(RESERVED_AREA_END - RESERVED_AREA_START)
+#define RESERVED_AREA_SECTIONS	(RESERVED_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* 0x00400000 */
+#define USER_AREA_START		0x00400000
+#define USER_AREA_END		0xF0000000
+#define USER_AREA_SIZE		(USER_AREA_END - USER_AREA_START)
+#define USER_AREA_SECTIONS	(USER_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* 0xf0000000 */
+#define KERNEL_AREA_START	0xF0000000
+#define KERNEL_AREA_END		0xF4000000
+#define KERNEL_AREA_SIZE	(KERNEL_AREA_END - KERNEL_AREA_START)
+#define KERNEL_AREA_SECTIONS	(KERNEL_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* Kernel offset is taken as virtual memory base */
+#define VIRT_ADDR_BASE		KERNEL_AREA_START
+
+/* 0xf4000000 */
+#define UNCACHE_AREA_START	0xF4000000
+#define UNCACHE_AREA_END	0xF8000000
+#define UNCACHE_AREA_SIZE	(UNCACHE_AREA_END - UNCACHE_AREA_START)
+#define UNCACHE_AREA_SECTIONS	(UNCACHE_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* The page tables are the main clients of uncached virtual memory */
+#define PGTABLE_ADDR_BASE	UNCACHE_AREA_START
+
+/* 0xf8000000 */
+#define VAR_AREA_START		0xF8000000
+#define VAR_AREA_END		0xF9000000
+#define VAR_AREA_SIZE		(VAR_AREA_END - VAR_AREA_START)
+#define VAR_AREA_SECTIONS	(VAR_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* 0xf9000000 */
+#define IO_AREA_START		0xF9000000
+#define IO_AREA_END		0xFF000000
+#define IO_AREA_SIZE		(IO_AREA_END - IO_AREA_START)
+#define IO_AREA_SECTIONS	(IO_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* 0xff000000 */
+#define MISC_AREA_START		0xFF000000
+#define MISC_AREA_END		0xFFF00000
+#define MISC_AREA_SIZE		(MISC_AREA_END - MISC_AREA_START)
+#define MISC_AREA_SECTIONS	(MISC_AREA_SIZE / ARM_SECTION_SIZE)
+
+/* First page in MISC area is used for KIP/UTCB reference page */
+#define USER_KIP_PAGE		MISC_AREA_START
+
+/* 0xfff00000 */
+#define EXCPT_AREA_START	0xFFF00000
+#define EXCPT_AREA_END		(EXCPT_AREA_START + ARM_SECTION_SIZE)
+#define EXCPT_AREA_SIZE		(EXCPT_AREA_END - EXCPT_AREA_START)
+
+/* 1MB IO Areas in the Virtual Address space. Define more if needed */
+#define IO_AREA0_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*0))
+#define IO_AREA1_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*1))
+#define IO_AREA2_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*2))
+#define IO_AREA3_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*3))
+#define IO_AREA4_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*4))
+#define IO_AREA5_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*5))
+#define IO_AREA6_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*6))
+#define IO_AREA7_VADDR		(IO_AREA_START + (ARM_SECTION_SIZE*7))
+
+/*
+ * Address of start of arm_high_vector - exception handling code
+ */
+#define ARM_HIGH_VECTOR_VADDR	(EXCPT_AREA_START | 0x000f0000 )
+#define ARM_SYSCALL_VECTOR	(0xffffff00)
+
+/*
+ * These offsets depend on where the platform defines its physical memory
+ * and how the system defines the virtual memory regions in arm/basiclayout.h
+ */
+//#define	KERNEL_OFFSET		(VIRT_ADDR_BASE - PHYS_ADDR_BASE)
+//#define	PGTABLE_OFFSET		(PGTABLE_ADDR_BASE - PGTABLE_PHYS_ADDR_BASE)
+/* Use a more predictible offset by just changing the top nibble */
+#define KERNEL_OFFSET		VIRT_ADDR_BASE
+#define PGTABLE_OFFSET		PGTABLE_ADDR_BASE
+
+/*
+ * Convenience macros for converting between address types.
+ */
+#if defined(__KERNEL__)
+#define phys_to_virt(addr)	((unsigned int)addr)
+#define phys_to_ptab(addr)	((unsigned int)addr)
+#define virt_to_phys(addr)	((unsigned int)addr)
+#define virt_to_ptab(addr)	(phys_to_ptab(virt_to_phys(addr)))
+#endif
+#endif /* __BASICLAYOUT_H__ */

include/l4/glue/tests/memory.h

@@ -0,0 +1,84 @@
+/*
+ * Memory related definitions for test purposes.
+ *
+ * Copyright (C) 2007 Bahadir Balban
+ *
+ */
+#ifndef __GLUE_TEST_MEMORY_H__
+#define __GLUE_TEST_MEMORY_H__
+
+
+/* ARM specific definitions */
+#define TEST_SECTION_SIZE		SZ_1MB
+//#define TEST_PAGE_SIZE			SZ_4K
+//#define TEST_PAGE_MASK			0xFFF
+//#define TEST_PAGE_BITS			12
+#define TEST_PAGE_SIZE			128
+#define TEST_PAGE_MASK			(TEST_PAGE_SIZE-1)
+#define TEST_PAGE_BITS			7
+#define TEST_SECTION_MASK		0xFFFFF
+
+/* Aligns to the upper page (ceiling) */
+#define page_align_up(addr) 		((((unsigned int)(addr)) + \
+					  (PAGE_SIZE - 1)) & \
+					 (~PAGE_MASK))
+/* Aligns to the lower page (floor) */
+#define page_align(addr)		(((unsigned int)(addr)) &  \
+					 (~PAGE_MASK))
+
+/* Align to given size */
+#define	align(addr, size)		(((unsigned int)(addr)) & (~(size-1)))
+
+/* Extract page frame number from address */
+#define __pfn(x)		(((unsigned long)(x)) >> PAGE_BITS)
+#define __pfn_to_addr(x)	(((unsigned long)(x)) << PAGE_BITS)
+
+/* Extract physical address from page table entry (pte) */
+#define __pte_to_addr(x)	(((unsigned long)(x)) & ~PAGE_MASK)
+
+/* Minimum excess needed for word alignment */
+#define SZ_WORD				sizeof(unsigned long)
+#define WORD_BITS			32
+
+#define BITWISE_GETWORD(x)	((x) >> 5) /* Divide by 32 */
+#define	BITWISE_GETBIT(x)	(1 << ((x) % WORD_BITS))
+
+#define align_up(addr, size)		((((unsigned long)(addr)) + ((size) - 1)) & (~((size) - 1)))
+
+/* Generic definitions */
+extern unsigned int PAGE_SIZE;
+extern unsigned int PAGE_MASK;
+extern unsigned int PAGE_BITS;
+
+
+/* Type-checkable page table elements */
+typedef u32 pgd_t;
+typedef u32 pmd_t;
+typedef u32 pte_t;
+
+/* Page global directory made up of pgd_t entries */
+typedef struct pgd_table {
+	pgd_t entry[SZ_4K];
+} pgd_table_t;
+
+/* Page middle directory made up of pmd_t entries */
+typedef struct pmd_table {
+	pmd_t entry[256];
+} pmd_table_t;
+
+
+/* Number of pmd tables to describe all physical memory.
+ * TODO: Need more for IO etc. */
+#define NUM_PMD_TABLES	((PHYS_MEM_END - PHYS_MEM_START) / PAGE_SIZE) \
+			/ PMD_NUM_PAGES
+
+/* Page table related */
+extern pgd_table_t kspace;
+extern pmd_table_t pmd_tables[];
+extern unsigned long pmdtab_i;
+
+void paging_init(void);
+void init_clear_ptab(void);
+
+#endif /* __GLUE_TEST_MEMORY_H__ */
+

include/l4/glue/tests/utcb.h

@@ -0,0 +1,19 @@
+#ifndef __GLUE__V4_ARM__UTCB_H__
+#define __GLUE__V4_ARM__UTCB_H__
+
+/*
+ * Userspace thread control block
+ *
+ * Copyright (C) 2005 Bahadir Balban
+ *
+ */
+#include <macros.h>
+#include <config.h>
+#include <types.h>
+
+struct utcb {
+	u32 global_id;
+	u32 error_code;
+};
+
+#endif /* !__GLUE__V4_ARM__UTCB_H__ */