sh: Obliterate the P1 area macros

Replace the use of PHYSADDR() with __pa(). PHYSADDR() is based on the
idea that all addresses in P1SEG are untranslated, so we can access an
address's physical page as an offset from P1SEG. This doesn't work for
CONFIG_PMB/CONFIG_PMB_FIXED because pages in P1SEG and P2SEG are used
for PMB mappings and so can be translated to any physical address.

Likewise, replace a P1SEGADDR() use with virt_to_phys().
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boot/compressed/misc.c

@@ -131,7 +131,7 @@ void decompress_kernel(void)
 #ifdef CONFIG_SUPERH64
 	output_addr = (CONFIG_MEMORY_START + 0x2000);
 #else
-	output_addr = PHYSADDR((unsigned long)&_text+PAGE_SIZE);
+	output_addr = __pa((unsigned long)&_text+PAGE_SIZE);
 #ifdef CONFIG_29BIT
 	output_addr |= P2SEG;
 #endif

arch/sh/include/asm/addrspace.h

@@ -28,9 +28,6 @@
 /* Returns the privileged segment base of a given address  */
 #define PXSEG(a)	(((unsigned long)(a)) & 0xe0000000)
 
-/* Returns the physical address of a PnSEG (n=1,2) address   */
-#define PHYSADDR(a)	(((unsigned long)(a)) & 0x1fffffff)
-
 #if defined(CONFIG_29BIT) || defined(CONFIG_PMB_FIXED)
 /*
  * Map an address to a certain privileged segment

arch/sh/kernel/machine_kexec.c

@@ -49,7 +49,7 @@ int machine_kexec_prepare(struct kimage *image)
 	/* older versions of kexec-tools are passing
 	 * the zImage entry point as a virtual address.
 	 */
-	if (image->start != PHYSADDR(image->start))
+	if (image->start != __pa(image->start))
 		return -EINVAL; /* upgrade your kexec-tools */
 
 	return 0;

arch/sh/mm/cache-sh4.c

@@ -97,7 +97,7 @@ static inline void flush_cache_4096(unsigned long start,
 
 	local_irq_save(flags);
 	__flush_cache_4096(start | SH_CACHE_ASSOC,
-			   P1SEGADDR(phys), exec_offset);
+			   virt_to_phys(phys), exec_offset);
 	local_irq_restore(flags);
 }
 

arch/sh/mm/cache-sh7705.c

@@ -141,7 +141,7 @@ static void sh7705_flush_dcache_page(void *arg)
 	if (mapping && !mapping_mapped(mapping))
 		set_bit(PG_dcache_dirty, &page->flags);
 	else
-		__flush_dcache_page(PHYSADDR(page_address(page)));
+		__flush_dcache_page(__pa(page_address(page)));
 }
 
 static void __uses_jump_to_uncached sh7705_flush_cache_all(void *args)