[PATCH] CRIS update: new subarchitecture v32
New CRIS sub architecture named v32.
From: Dave Jones <davej@redhat.com>
Fix swapped kmalloc args
Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-cris/arch-v32/mmu.h b/include/asm-cris/arch-v32/mmu.h
new file mode 100644
index 0000000..6bcdc3f
--- /dev/null
+++ b/include/asm-cris/arch-v32/mmu.h
@@ -0,0 +1,111 @@
+#ifndef _ASM_CRIS_ARCH_MMU_H
+#define _ASM_CRIS_ARCH_MMU_H
+
+/* MMU context type. */
+typedef struct
+{
+ unsigned int page_id;
+} mm_context_t;
+
+/* Kernel memory segments. */
+#define KSEG_F 0xf0000000UL
+#define KSEG_E 0xe0000000UL
+#define KSEG_D 0xd0000000UL
+#define KSEG_C 0xc0000000UL
+#define KSEG_B 0xb0000000UL
+#define KSEG_A 0xa0000000UL
+#define KSEG_9 0x90000000UL
+#define KSEG_8 0x80000000UL
+#define KSEG_7 0x70000000UL
+#define KSEG_6 0x60000000UL
+#define KSEG_5 0x50000000UL
+#define KSEG_4 0x40000000UL
+#define KSEG_3 0x30000000UL
+#define KSEG_2 0x20000000UL
+#define KSEG_1 0x10000000UL
+#define KSEG_0 0x00000000UL
+
+/*
+ * CRISv32 PTE bits:
+ *
+ * Bit: 31-13 12-5 4 3 2 1 0
+ * +-----+------+--------+-------+--------+-------+---------+
+ * | pfn | zero | global | valid | kernel | write | execute |
+ * +-----+------+--------+-------+--------+-------+---------+
+ */
+
+/*
+ * Defines for accessing the bits. Also define some synonyms for use with
+ * the software-based defined bits below.
+ */
+#define _PAGE_EXECUTE (1 << 0) /* Execution bit. */
+#define _PAGE_WE (1 << 1) /* Write bit. */
+#define _PAGE_SILENT_WRITE (1 << 1) /* Same as above. */
+#define _PAGE_KERNEL (1 << 2) /* Kernel mode page. */
+#define _PAGE_VALID (1 << 3) /* Page is valid. */
+#define _PAGE_SILENT_READ (1 << 3) /* Same as above. */
+#define _PAGE_GLOBAL (1 << 4) /* Global page. */
+
+/*
+ * The hardware doesn't care about these bits, but the kernel uses them in
+ * software.
+ */
+#define _PAGE_PRESENT (1 << 5) /* Page is present in memory. */
+#define _PAGE_FILE (1 << 6) /* 1=pagecache, 0=swap (when !present) */
+#define _PAGE_ACCESSED (1 << 6) /* Simulated in software using valid bit. */
+#define _PAGE_MODIFIED (1 << 7) /* Simulated in software using we bit. */
+#define _PAGE_READ (1 << 8) /* Read enabled. */
+#define _PAGE_WRITE (1 << 9) /* Write enabled. */
+
+/* Define some higher level generic page attributes. */
+#define __READABLE (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED)
+#define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED)
+
+#define _PAGE_TABLE (_PAGE_PRESENT | __READABLE | __WRITEABLE)
+#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED)
+
+#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
+#define PAGE_SHARED __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_WRITE | \
+ _PAGE_ACCESSED)
+#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_WRITE | \
+ _PAGE_ACCESSED | _PAGE_EXECUTE)
+
+#define PAGE_READONLY __pgprot(_PAGE_PRESENT | __READABLE)
+#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_EXECUTE | _PAGE_ACCESSED)
+
+#define PAGE_COPY __pgprot(_PAGE_PRESENT | __READABLE)
+#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_EXECUTE)
+#define PAGE_KERNEL __pgprot(_PAGE_GLOBAL | _PAGE_KERNEL | \
+ _PAGE_PRESENT | __READABLE | __WRITEABLE)
+#define PAGE_KERNEL_EXEC __pgprot(_PAGE_GLOBAL | _PAGE_KERNEL | _PAGE_EXECUTE | \
+ _PAGE_PRESENT | __READABLE | __WRITEABLE)
+#define PAGE_SIGNAL_TRAMPOLINE __pgprot(_PAGE_GLOBAL | _PAGE_EXECUTE | \
+ _PAGE_PRESENT | __READABLE)
+
+#define _KERNPG_TABLE (_PAGE_TABLE | _PAGE_KERNEL)
+
+/* CRISv32 can do page protection for execute.
+ * Write permissions imply read permissions.
+ * Note that the numbers are in Execute-Write-Read order!
+ */
+#define __P000 PAGE_NONE
+#define __P001 PAGE_READONLY
+#define __P010 PAGE_COPY
+#define __P011 PAGE_COPY
+#define __P100 PAGE_READONLY_EXEC
+#define __P101 PAGE_READONLY_EXEC
+#define __P110 PAGE_COPY_EXEC
+#define __P111 PAGE_COPY_EXEC
+
+#define __S000 PAGE_NONE
+#define __S001 PAGE_READONLY
+#define __S010 PAGE_SHARED
+#define __S011 PAGE_SHARED
+#define __S100 PAGE_READONLY_EXEC
+#define __S101 PAGE_READONLY_EXEC
+#define __S110 PAGE_SHARED_EXEC
+#define __S111 PAGE_SHARED_EXEC
+
+#define PTE_FILE_MAX_BITS 25
+
+#endif /* _ASM_CRIS_ARCH_MMU_H */