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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-23 18:03:08 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-23 18:03:08 -0700 |
commit | 194dfe88d62ed12d0cf30f6f20734c2d0d111533 (patch) | |
tree | f057597d411df53a152ac41ae8bd900aabb94994 /arch/nds32/include/asm/memory.h | |
parent | 9c0e6a89b592f4c4e4d769dbc22d399ab0685159 (diff) | |
parent | aec499c75cf8e0b599be4d559e6922b613085f8f (diff) |
Merge tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"There are three sets of updates for 5.18 in the asm-generic tree:
- The set_fs()/get_fs() infrastructure gets removed for good.
This was already gone from all major architectures, but now we can
finally remove it everywhere, which loses some particularly tricky
and error-prone code. There is a small merge conflict against a
parisc cleanup, the solution is to use their new version.
- The nds32 architecture ends its tenure in the Linux kernel.
The hardware is still used and the code is in reasonable shape, but
the mainline port is not actively maintained any more, as all
remaining users are thought to run vendor kernels that would never
be updated to a future release.
- A series from Masahiro Yamada cleans up some of the uapi header
files to pass the compile-time checks"
* tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (27 commits)
nds32: Remove the architecture
uaccess: remove CONFIG_SET_FS
ia64: remove CONFIG_SET_FS support
sh: remove CONFIG_SET_FS support
sparc64: remove CONFIG_SET_FS support
lib/test_lockup: fix kernel pointer check for separate address spaces
uaccess: generalize access_ok()
uaccess: fix type mismatch warnings from access_ok()
arm64: simplify access_ok()
m68k: fix access_ok for coldfire
MIPS: use simpler access_ok()
MIPS: Handle address errors for accesses above CPU max virtual user address
uaccess: add generic __{get,put}_kernel_nofault
nios2: drop access_ok() check from __put_user()
x86: use more conventional access_ok() definition
x86: remove __range_not_ok()
sparc64: add __{get,put}_kernel_nofault()
nds32: fix access_ok() checks in get/put_user
uaccess: fix nios2 and microblaze get_user_8()
sparc64: fix building assembly files
...
Diffstat (limited to 'arch/nds32/include/asm/memory.h')
-rw-r--r-- | arch/nds32/include/asm/memory.h | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/arch/nds32/include/asm/memory.h b/arch/nds32/include/asm/memory.h deleted file mode 100644 index 62faafbc28e4..000000000000 --- a/arch/nds32/include/asm/memory.h +++ /dev/null @@ -1,91 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -// Copyright (C) 2005-2017 Andes Technology Corporation - -#ifndef __ASM_NDS32_MEMORY_H -#define __ASM_NDS32_MEMORY_H - -#include <linux/compiler.h> -#include <linux/sizes.h> - -#ifndef __ASSEMBLY__ -#include <asm/page.h> -#endif - -#ifndef PHYS_OFFSET -#define PHYS_OFFSET (0x0) -#endif - -/* - * TASK_SIZE - the maximum size of a user space task. - * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area - */ -#define TASK_SIZE ((CONFIG_PAGE_OFFSET) - (SZ_32M)) -#define TASK_UNMAPPED_BASE ALIGN(TASK_SIZE / 3, SZ_32M) -#define PAGE_OFFSET (CONFIG_PAGE_OFFSET) - -/* - * Physical vs virtual RAM address space conversion. These are - * private definitions which should NOT be used outside memory.h - * files. Use virt_to_phys/phys_to_virt/__pa/__va instead. - */ -#ifndef __virt_to_phys -#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET) -#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET) -#endif - -/* - * The module space lives between the addresses given by TASK_SIZE - * and PAGE_OFFSET - it must be within 32MB of the kernel text. - */ -#define MODULES_END (PAGE_OFFSET) -#define MODULES_VADDR (MODULES_END - SZ_32M) - -#if TASK_SIZE > MODULES_VADDR -#error Top of user space clashes with start of module space -#endif - -#ifndef __ASSEMBLY__ - -/* - * PFNs are used to describe any physical page; this means - * PFN 0 == physical address 0. - * - * This is the PFN of the first RAM page in the kernel - * direct-mapped view. We assume this is the first page - * of RAM in the mem_map as well. - */ -#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) - -/* - * Drivers should NOT use these either. - */ -#define __pa(x) __virt_to_phys((unsigned long)(x)) -#define __va(x) ((void *)__phys_to_virt((unsigned long)(x))) - -/* - * Conversion between a struct page and a physical address. - * - * Note: when converting an unknown physical address to a - * struct page, the resulting pointer must be validated - * using VALID_PAGE(). It must return an invalid struct page - * for any physical address not corresponding to a system - * RAM address. - * - * pfn_valid(pfn) indicates whether a PFN number is valid - * - * virt_to_page(k) convert a _valid_ virtual address to struct page * - * virt_addr_valid(k) indicates whether a virtual address is valid - */ -#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET -#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) - -#define virt_to_page(kaddr) (pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)) -#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) - -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) - -#endif - -#include <asm-generic/memory_model.h> - -#endif |