[PATCH] CRIS update: updates for 2.6.12

Patches to make CRIS work with 2.6.12.

Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

12 files changed, 42 insertions, 86 deletions

diff --git a/include/asm-cris/arch-v10/bitops.h b/include/asm-cris/arch-v10/bitops.h
index 21b7ae8..b73f539 100644
--- a/include/asm-cris/arch-v10/bitops.h
+++ b/include/asm-cris/arch-v10/bitops.h
@@ -51,7 +51,7 @@ extern inline unsigned long ffz(unsigned long w)
  *
  * Undefined if no bit exists, so code should check against 0 first.
  */
-extern __inline__ unsigned long __ffs(unsigned long word)
+extern inline unsigned long __ffs(unsigned long word)
 {
 	return cris_swapnwbrlz(~word);
 }
diff --git a/include/asm-cris/arch-v10/offset.h b/include/asm-cris/arch-v10/offset.h
index fcbd77e..675b51d 100644
--- a/include/asm-cris/arch-v10/offset.h
+++ b/include/asm-cris/arch-v10/offset.h
@@ -25,7 +25,7 @@
 #define THREAD_usp 4 /* offsetof(struct thread_struct, usp) */
 #define THREAD_dccr 8 /* offsetof(struct thread_struct, dccr) */
 
-#define TASK_pid 133 /* offsetof(struct task_struct, pid) */
+#define TASK_pid 141 /* offsetof(struct task_struct, pid) */
 
 #define LCLONE_VM 256 /* CLONE_VM */
 #define LCLONE_UNTRACED 8388608 /* CLONE_UNTRACED */
diff --git a/include/asm-cris/bitops.h b/include/asm-cris/bitops.h
index d786111..e3da57f 100644
--- a/include/asm-cris/bitops.h
+++ b/include/asm-cris/bitops.h
@@ -16,6 +16,7 @@
 
 #include <asm/arch/bitops.h>
 #include <asm/system.h>
+#include <asm/atomic.h>
 #include <linux/compiler.h>
 
 /*
@@ -88,7 +89,7 @@ struct __dummy { unsigned long a[100]; };
  * It also implies a memory barrier.
  */
 
-extern inline int test_and_set_bit(int nr, void *addr)
+extern inline int test_and_set_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned long flags;
@@ -96,15 +97,15 @@ extern inline int test_and_set_bit(int nr, void *addr)
 	
 	adr += nr >> 5;
 	mask = 1 << (nr & 0x1f);
-	local_save_flags(flags);
-	local_irq_disable();
+	cris_atomic_save(addr, flags);
 	retval = (mask & *adr) != 0;
 	*adr |= mask;
+	cris_atomic_restore(addr, flags);
 	local_irq_restore(flags);
 	return retval;
 }
 
-extern inline int __test_and_set_bit(int nr, void *addr)
+extern inline int __test_and_set_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned int *adr = (unsigned int *)addr;
@@ -131,7 +132,7 @@ extern inline int __test_and_set_bit(int nr, void *addr)
  * It also implies a memory barrier.
  */
 
-extern inline int test_and_clear_bit(int nr, void *addr)
+extern inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned long flags;
@@ -139,11 +140,10 @@ extern inline int test_and_clear_bit(int nr, void *addr)
 	
 	adr += nr >> 5;
 	mask = 1 << (nr & 0x1f);
-	local_save_flags(flags);
-	local_irq_disable();
+	cris_atomic_save(addr, flags);
 	retval = (mask & *adr) != 0;
 	*adr &= ~mask;
-	local_irq_restore(flags);
+	cris_atomic_restore(addr, flags);
 	return retval;
 }
 
@@ -157,7 +157,7 @@ extern inline int test_and_clear_bit(int nr, void *addr)
  * but actually fail.  You must protect multiple accesses with a lock.
  */
 
-extern inline int __test_and_clear_bit(int nr, void *addr)
+extern inline int __test_and_clear_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned int *adr = (unsigned int *)addr;
@@ -177,24 +177,23 @@ extern inline int __test_and_clear_bit(int nr, void *addr)
  * It also implies a memory barrier.
  */
 
-extern inline int test_and_change_bit(int nr, void *addr)
+extern inline int test_and_change_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned long flags;
 	unsigned int *adr = (unsigned int *)addr;
 	adr += nr >> 5;
 	mask = 1 << (nr & 0x1f);
-	local_save_flags(flags);
-	local_irq_disable();
+	cris_atomic_save(addr, flags);
 	retval = (mask & *adr) != 0;
 	*adr ^= mask;
-	local_irq_restore(flags);
+	cris_atomic_restore(addr, flags);
 	return retval;
 }
 
 /* WARNING: non atomic and it can be reordered! */
 
-extern inline int __test_and_change_bit(int nr, void *addr)
+extern inline int __test_and_change_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned int *adr = (unsigned int *)addr;
@@ -215,7 +214,7 @@ extern inline int __test_and_change_bit(int nr, void *addr)
  * This routine doesn't need to be atomic.
  */
 
-extern inline int test_bit(int nr, const void *addr)
+extern inline int test_bit(int nr, const volatile unsigned long *addr)
 {
 	unsigned int mask;
 	unsigned int *adr = (unsigned int *)addr;
@@ -259,7 +258,7 @@ extern inline int test_bit(int nr, const void *addr)
  * @offset: The bitnumber to start searching at
  * @size: The maximum size to search
  */
-extern inline int find_next_zero_bit (void * addr, int size, int offset)
+extern inline int find_next_zero_bit (const unsigned long * addr, int size, int offset)
 {
 	unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
 	unsigned long result = offset & ~31UL;
@@ -301,7 +300,7 @@ extern inline int find_next_zero_bit (void * addr, int size, int offset)
  * @offset: The bitnumber to start searching at
  * @size: The maximum size to search
  */
-static __inline__ int find_next_bit(void *addr, int size, int offset)
+static __inline__ int find_next_bit(const unsigned long *addr, int size, int offset)
 {
 	unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
         unsigned long result = offset & ~31UL;
@@ -367,7 +366,7 @@ found_middle:
 #define minix_test_bit(nr,addr) test_bit(nr,addr)
 #define minix_find_first_zero_bit(addr,size) find_first_zero_bit(addr,size)
 
-extern inline int sched_find_first_bit(unsigned long *b)
+extern inline int sched_find_first_bit(const unsigned long *b)
 {
 	if (unlikely(b[0]))
 		return __ffs(b[0]);
diff --git a/include/asm-cris/kmap_types.h b/include/asm-cris/kmap_types.h
index eec0974..492988c 100644
--- a/include/asm-cris/kmap_types.h
+++ b/include/asm-cris/kmap_types.h
@@ -17,8 +17,8 @@ enum km_type {
 	KM_PTE1,
 	KM_IRQ0,
 	KM_IRQ1,
-	KM_CRYPTO_USER,
-	KM_CRYPTO_SOFTIRQ,
+	KM_SOFTIRQ0,
+	KM_SOFTIRQ1,
 	KM_TYPE_NR
 };
 
diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h
index c767da1..bbf17bd 100644
--- a/include/asm-cris/page.h
+++ b/include/asm-cris/page.h
@@ -29,18 +29,15 @@
  */
 #ifndef __ASSEMBLY__
 typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
 typedef struct { unsigned long pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 #endif
 
 #define pte_val(x)	((x).pte)
-#define pmd_val(x)	((x).pmd)
 #define pgd_val(x)	((x).pgd)
 #define pgprot_val(x)	((x).pgprot)
 
 #define __pte(x)	((pte_t) { (x) } )
-#define __pmd(x)	((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
@@ -73,10 +70,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #ifndef __ASSEMBLY__
 
-#define BUG() do { \
-  printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
-} while (0)
-
 /* Pure 2^n version of get_order */
 static inline int get_order(unsigned long size)
 {
diff --git a/include/asm-cris/pgalloc.h b/include/asm-cris/pgalloc.h
index b202e62..a131776 100644
--- a/include/asm-cris/pgalloc.h
+++ b/include/asm-cris/pgalloc.h
@@ -47,16 +47,6 @@ extern inline void pte_free(struct page *pte)
 
 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
 
-/*
- * We don't have any real pmd's, and this code never triggers because
- * the pgd will always be present..
- */
-
-#define pmd_alloc_one(mm, addr)    ({ BUG(); ((pmd_t *)2); })
-#define pmd_free(x)                do { } while (0)
-#define __pmd_free_tlb(tlb,x)      do { } while (0)
-#define pgd_populate(mm, pmd, pte) BUG()
-
 #define check_pgt_cache()          do { } while (0)
 
 #endif
diff --git a/include/asm-cris/pgtable.h b/include/asm-cris/pgtable.h
index f704294..a9143be 100644
--- a/include/asm-cris/pgtable.h
+++ b/include/asm-cris/pgtable.h
@@ -5,7 +5,8 @@
 #ifndef _CRIS_PGTABLE_H
 #define _CRIS_PGTABLE_H
 
-#include <asm-generic/4level-fixup.h>
+#include <asm/page.h>
+#include <asm-generic/pgtable-nopmd.h>
 
 #ifndef __ASSEMBLY__
 #include <linux/config.h>
@@ -41,22 +42,14 @@ extern void paging_init(void);
  * but the define is needed for a generic inline function.)
  */
 #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval)
+#define set_pgu(pudptr, pudval) (*(pudptr) = pudval)
 
-/* PMD_SHIFT determines the size of the area a second-level page table can
+/* PGDIR_SHIFT determines the size of the area a second-level page table can
  * map. It is equal to the page size times the number of PTE's that fit in
  * a PMD page. A PTE is 4-bytes in CRIS. Hence the following number.
  */
 
-#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-2))
-#define PMD_SIZE	(1UL << PMD_SHIFT)
-#define PMD_MASK	(~(PMD_SIZE-1))
-
-/* PGDIR_SHIFT determines what a third-level page table entry can map.
- * Since we fold into a two-level structure, this is the same as PMD_SHIFT.
- */
-
-#define PGDIR_SHIFT	PMD_SHIFT
+#define PGDIR_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-2))
 #define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
 #define PGDIR_MASK	(~(PGDIR_SIZE-1))
 
@@ -67,7 +60,6 @@ extern void paging_init(void);
  * divide it by 4 (shift by 2).
  */
 #define PTRS_PER_PTE	(1UL << (PAGE_SHIFT-2))
-#define PTRS_PER_PMD	1
 #define PTRS_PER_PGD	(1UL << (PAGE_SHIFT-2))
 
 /* calculate how many PGD entries a user-level program can use
@@ -105,7 +97,7 @@ extern unsigned long empty_zero_page;
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
 
-#define pmd_none(x)	(!pmd_val(x))
+#define pmd_none(x)     (!pmd_val(x))
 /* by removing the _PAGE_KERNEL bit from the comparision, the same pmd_bad
  * works for both _PAGE_TABLE and _KERNPG_TABLE pmd entries.
  */
@@ -116,16 +108,6 @@ extern unsigned long empty_zero_page;
 #ifndef __ASSEMBLY__
 
 /*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- */
-extern inline int pgd_none(pgd_t pgd)		{ return 0; }
-extern inline int pgd_bad(pgd_t pgd)		{ return 0; }
-extern inline int pgd_present(pgd_t pgd)	{ return 1; }
-extern inline void pgd_clear(pgd_t * pgdp)	{ }
-
-/*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
@@ -275,7 +257,7 @@ extern inline void pmd_set(pmd_t * pmdp, pte_t * ptep)
 #define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
 
 /* to find an entry in a page-table-directory. */
-#define pgd_index(address) ((address >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
 
 /* to find an entry in a page-table-directory */
 extern inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address)
@@ -286,12 +268,6 @@ extern inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address)
 /* to find an entry in a kernel page-table-directory */
 #define pgd_offset_k(address) pgd_offset(&init_mm, address)
 
-/* Find an entry in the second-level page table.. */
-extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
-{
-	return (pmd_t *) dir;
-}
-
 /* Find an entry in the third-level page table.. */
 #define __pte_offset(address) \
 	(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
@@ -308,8 +284,6 @@ extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
 
 #define pte_ERROR(e) \
         printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), pte_val(e))
-#define pmd_ERROR(e) \
-        printk("%s:%d: bad pmd %p(%08lx).\n", __FILE__, __LINE__, &(e), pmd_val(e))
 #define pgd_ERROR(e) \
         printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
 
@@ -348,5 +322,7 @@ extern inline void update_mmu_cache(struct vm_area_struct * vma,
 #define pte_to_pgoff(x)	(pte_val(x) >> 6)
 #define pgoff_to_pte(x)	__pte(((x) << 6) | _PAGE_FILE)
 
+typedef pte_t *pte_addr_t;
+
 #endif /* __ASSEMBLY__ */
 #endif /* _CRIS_PGTABLE_H */
diff --git a/include/asm-cris/processor.h b/include/asm-cris/processor.h
index 623bdf0..0dc2181 100644
--- a/include/asm-cris/processor.h
+++ b/include/asm-cris/processor.h
@@ -55,15 +55,6 @@ unsigned long get_wchan(struct task_struct *p);
 
 #define KSTK_ESP(tsk)   ((tsk) == current ? rdusp() : (tsk)->thread.usp)
 
-/*
- * Free current thread data structures etc..
- */
-
-extern inline void exit_thread(void)
-{
-        /* Nothing needs to be done.  */
-}
-
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
 
 /* Free all resources held by a thread. */
diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h
index 5ba4b78..cef0140 100644
--- a/include/asm-cris/thread_info.h
+++ b/include/asm-cris/thread_info.h
@@ -43,7 +43,7 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x4000000
+#define PREEMPT_ACTIVE		0x10000000
 
 /*
  * macros/functions for gaining access to the thread information structure
diff --git a/include/asm-cris/timex.h b/include/asm-cris/timex.h
index 375c41a..3fb069a 100644
--- a/include/asm-cris/timex.h
+++ b/include/asm-cris/timex.h
@@ -14,7 +14,7 @@
  * used so it does not matter.
  */
 
-typedef unsigned int cycles_t;
+typedef unsigned long long cycles_t;
 
 extern inline cycles_t get_cycles(void)
 {
diff --git a/include/asm-cris/types.h b/include/asm-cris/types.h
index 41a0d45..8fa6d6c 100644
--- a/include/asm-cris/types.h
+++ b/include/asm-cris/types.h
@@ -52,7 +52,7 @@ typedef unsigned long long u64;
 typedef u32 dma_addr_t;
 typedef u32 dma64_addr_t;
 
-typedef unsigned int kmem_bufctl_t;
+typedef unsigned short kmem_bufctl_t;
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index e80bf27..28232ad 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -288,8 +288,15 @@
 #define __NR_mq_timedreceive	(__NR_mq_open+3)
 #define __NR_mq_notify		(__NR_mq_open+4)
 #define __NR_mq_getsetattr	(__NR_mq_open+5)
- 
-#define NR_syscalls 283
+#define __NR_sys_kexec_load	283
+#define __NR_waitid		284
+/* #define __NR_sys_setaltroot	285 */
+#define __NR_add_key		286
+#define __NR_request_key	287
+#define __NR_keyctl		288
+
+#define NR_syscalls 289
+
 
 
 #ifdef __KERNEL__