AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

sh: Kill off some superfluous legacy PMB special casing.

Browse Source 
The __va()/__pa() offsets and the boot memory offsets are consistent for
all PMB users, so there is no need to special case these for legacy PMB.
Kill the special casing off and depend on CONFIG_PMB across the board.
This also fixes up yet another addressing bug for sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-02-16 21:43:38 +09:00
parent efd54ea315
commit 1d5cfcdff7
2 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/sh/include/asm/page.h
View File

@ -127,12 +127,7 @@ typedef struct page *pgtable_t;
* is not visible (it is part of the PMB mapping) and so needs to be
* added or subtracted as required.
*/
#if defined(CONFIG_PMB_LEGACY)
/* phys = virt - PAGE_OFFSET - (__MEMORY_START & 0xe0000000) */
#define PMB_OFFSET (PAGE_OFFSET - PXSEG(__MEMORY_START))
#define __pa(x) ((unsigned long)(x) - PMB_OFFSET)
#define __va(x) ((void *)((unsigned long)(x) + PMB_OFFSET))
#elif defined(CONFIG_32BIT)
#ifdef CONFIG_PMB
#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET+__MEMORY_START)
#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET-__MEMORY_START))
#else

7
arch/sh/kernel/vmlinux.lds.S
View File

@ -14,11 +14,10 @@ OUTPUT_ARCH(sh)
#include <asm/cache.h>
#include <asm/vmlinux.lds.h>
#if defined(CONFIG_29BIT) || defined(CONFIG_SUPERH64) || \
defined(CONFIG_PMB_LEGACY)
#define MEMORY_OFFSET __MEMORY_START
#ifdef CONFIG_PMB
#define MEMORY_OFFSET 0
#else
#define MEMORY_OFFSET 0
#define MEMORY_OFFSET __MEMORY_START
#endif
ENTRY(_start)