[PATCH] FRV: Make the FRV arch work again

The attached patch implements a bunch of small changes to the FRV arch to
make it work again.

It deals with the following problems:

 (1) SEM_DEBUG should be SEMAPHORE_DEBUG.

 (2) The argument list to pcibios_penalize_isa_irq() has changed.

 (3) CONFIG_HIGHMEM can't be used directly in #if as it may not be defined.

 (4) page->private is no longer directly accessible.

 (5) linux/hardirq.h assumes asm/hardirq.h will include linux/irq.h

 (6) The IDE MMIO access functions are given pointers, not integers, and so
     get type casting errors.

 (7) __pa() is passed an explicit u64 type in drivers/char/mem.c, but that
     can't be cast directly to a pointer on a 32-bit platform.

 (8) SEMAPHORE_DEBUG should not be contingent on WAITQUEUE_DEBUG as that no
     longer exists.

 (9) PREEMPT_ACTIVE is too low a value.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/frv/kernel/semaphore.c

@@ -20,7 +20,7 @@ struct sem_waiter {
 	struct task_struct	*task;
 };
 
-#if SEM_DEBUG
+#if SEMAPHORE_DEBUG
 void semtrace(struct semaphore *sem, const char *str)
 {
 	if (sem->debug)

arch/frv/mb93090-mb00/pci-irq.c

@@ -60,7 +60,7 @@ void __init pcibios_fixup_irqs(void)
 	}
 }
 
-void __init pcibios_penalize_isa_irq(int irq, int active)
+void __init pcibios_penalize_isa_irq(int irq)
 {
 }
 

arch/frv/mm/init.c

@@ -108,7 +108,7 @@ void __init paging_init(void)
 
 	memset((void *) empty_zero_page, 0, PAGE_SIZE);
 
-#if CONFIG_HIGHMEM
+#ifdef CONFIG_HIGHMEM
 	if (num_physpages - num_mappedpages) {
 		pgd_t *pge;
 		pud_t *pue;

arch/frv/mm/pgalloc.c

@@ -85,7 +85,7 @@ static inline void pgd_list_add(pgd_t *pgd)
 	struct page *page = virt_to_page(pgd);
 	page->index = (unsigned long) pgd_list;
 	if (pgd_list)
-		pgd_list->private = (unsigned long) &page->index;
+		set_page_private(pgd_list, (unsigned long) &page->index);
 	pgd_list = page;
 	set_page_private(page, (unsigned long)&pgd_list);
 }
@@ -94,10 +94,10 @@ static inline void pgd_list_del(pgd_t *pgd)
 {
 	struct page *next, **pprev, *page = virt_to_page(pgd);
 	next = (struct page *) page->index;
-	pprev = (struct page **)page_private(page);
+	pprev = (struct page **) page_private(page);
 	*pprev = next;
 	if (next)
-		next->private = (unsigned long) pprev;
+		set_page_private(next, (unsigned long) pprev);
 }
 
 void pgd_ctor(void *pgd, kmem_cache_t *cache, unsigned long unused)

include/asm-frv/hardirq.h

@@ -14,6 +14,7 @@
 
 #include <linux/config.h>
 #include <linux/threads.h>
+#include <linux/irq.h>
 
 typedef struct {
 	unsigned int __softirq_pending;

include/asm-frv/ide.h

@@ -33,10 +33,10 @@
 /*
  * some bits needed for parts of the IDE subsystem to compile
  */
-#define __ide_mm_insw(port, addr, n)	insw(port, addr, n)
-#define __ide_mm_insl(port, addr, n)	insl(port, addr, n)
-#define __ide_mm_outsw(port, addr, n)	outsw(port, addr, n)
-#define __ide_mm_outsl(port, addr, n)	outsl(port, addr, n)
+#define __ide_mm_insw(port, addr, n)	insw((unsigned long) (port), addr, n)
+#define __ide_mm_insl(port, addr, n)	insl((unsigned long) (port), addr, n)
+#define __ide_mm_outsw(port, addr, n)	outsw((unsigned long) (port), addr, n)
+#define __ide_mm_outsl(port, addr, n)	outsl((unsigned long) (port), addr, n)
 
 
 #endif /* __KERNEL__ */

include/asm-frv/page.h

@@ -47,8 +47,8 @@ typedef struct { unsigned long	pgprot;	} pgprot_t;
 
 #define devmem_is_allowed(pfn)	1
 
-#define __pa(vaddr)		virt_to_phys((void *) vaddr)
-#define __va(paddr)		phys_to_virt((unsigned long) paddr)
+#define __pa(vaddr)		virt_to_phys((void *) (unsigned long) (vaddr))
+#define __va(paddr)		phys_to_virt((unsigned long) (paddr))
 
 #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
 

include/asm-frv/semaphore.h

@@ -20,7 +20,7 @@
 #include <linux/spinlock.h>
 #include <linux/rwsem.h>
 
-#define SEMAPHORE_DEBUG		WAITQUEUE_DEBUG
+#define SEMAPHORE_DEBUG		0
 
 /*
  * the semaphore definition

include/asm-frv/thread_info.h

@@ -58,7 +58,7 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x4000000
+#define PREEMPT_ACTIVE		0x10000000
 
 /*
  * macros/functions for gaining access to the thread information structure