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sh/highmem: Remove all traces of unused cruft 

For whatever reasons SH has highmem bits all over the place but does
not enable it via Kconfig. Remove the bitrot.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/r/20201103095856.979798613@linutronix.de
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Thomas Gleixner 2020-11-03 10:27:16 +01:00
parent e8f147dc3f
commit 673afbace4
3 changed files with 0 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/sh/include/asm/fixmap.h
View File

@ -13,9 +13,6 @@
#include <linux/kernel.h>
#include <linux/threads.h>
#include <asm/page.h>
#ifdef CONFIG_HIGHMEM
#include <asm/kmap_types.h>
#endif
/*
* Here we define all the compile-time 'special' virtual
@ -53,11 +50,6 @@ enum fixed_addresses {
FIX_CMAP_BEGIN,
FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * NR_CPUS) - 1,
#ifdef CONFIG_HIGHMEM
FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_TYPE_NR * NR_CPUS) - 1,
#endif
#ifdef CONFIG_IOREMAP_FIXED
/*
* FIX_IOREMAP entries are useful for mapping physical address

15
arch/sh/include/asm/kmap_types.h
View File

@ -1,15 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __SH_KMAP_TYPES_H
#define __SH_KMAP_TYPES_H
/* Dummy header just to define km_type. */
#ifdef CONFIG_DEBUG_HIGHMEM
#define __WITH_KM_FENCE
#endif
#include <asm-generic/kmap_types.h>
#undef __WITH_KM_FENCE
#endif

8
arch/sh/mm/init.c
View File

@ -362,9 +362,6 @@ void __init mem_init(void)
mem_init_print_info(NULL);
pr_info("virtual kernel memory layout:\n"
" fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
#ifdef CONFIG_HIGHMEM
" pkmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
#endif
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
" lowmem : 0x%08lx - 0x%08lx (%4ld MB) (cached)\n"
#ifdef CONFIG_UNCACHED_MAPPING
@ -376,11 +373,6 @@ void __init mem_init(void)
FIXADDR_START, FIXADDR_TOP,
(FIXADDR_TOP - FIXADDR_START) >> 10,
#ifdef CONFIG_HIGHMEM
PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE,
(LAST_PKMAP*PAGE_SIZE) >> 10,
#endif
(unsigned long)VMALLOC_START, VMALLOC_END,
(VMALLOC_END - VMALLOC_START) >> 20,