mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
9cc646950e
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is a completely mechanical patch (done with a simple "sed -i" statement). Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: linux-sh@vger.kernel.org Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __MMU_H
|
|
#define __MMU_H
|
|
|
|
/*
|
|
* Privileged Space Mapping Buffer (PMB) definitions
|
|
*/
|
|
#define PMB_PASCR 0xff000070
|
|
#define PMB_IRMCR 0xff000078
|
|
|
|
#define PASCR_SE 0x80000000
|
|
|
|
#define PMB_ADDR 0xf6100000
|
|
#define PMB_DATA 0xf7100000
|
|
|
|
#define NR_PMB_ENTRIES 16
|
|
|
|
#define PMB_E_MASK 0x0000000f
|
|
#define PMB_E_SHIFT 8
|
|
|
|
#define PMB_PFN_MASK 0xff000000
|
|
|
|
#define PMB_SZ_16M 0x00000000
|
|
#define PMB_SZ_64M 0x00000010
|
|
#define PMB_SZ_128M 0x00000080
|
|
#define PMB_SZ_512M 0x00000090
|
|
#define PMB_SZ_MASK PMB_SZ_512M
|
|
#define PMB_C 0x00000008
|
|
#define PMB_WT 0x00000001
|
|
#define PMB_UB 0x00000200
|
|
#define PMB_CACHE_MASK (PMB_C | PMB_WT | PMB_UB)
|
|
#define PMB_V 0x00000100
|
|
|
|
#define PMB_NO_ENTRY (-1)
|
|
|
|
#ifndef __ASSEMBLER__
|
|
#include <linux/errno.h>
|
|
#include <linux/threads.h>
|
|
#include <asm/page.h>
|
|
|
|
/* Default "unsigned long" context */
|
|
typedef unsigned long mm_context_id_t[NR_CPUS];
|
|
|
|
typedef struct {
|
|
#ifdef CONFIG_MMU
|
|
mm_context_id_t id;
|
|
void *vdso;
|
|
#else
|
|
unsigned long end_brk;
|
|
#endif
|
|
#ifdef CONFIG_BINFMT_ELF_FDPIC
|
|
unsigned long exec_fdpic_loadmap;
|
|
unsigned long interp_fdpic_loadmap;
|
|
#endif
|
|
} mm_context_t;
|
|
|
|
#ifdef CONFIG_PMB
|
|
/* arch/sh/mm/pmb.c */
|
|
bool __in_29bit_mode(void);
|
|
|
|
void pmb_init(void);
|
|
int pmb_bolt_mapping(unsigned long virt, phys_addr_t phys,
|
|
unsigned long size, pgprot_t prot);
|
|
void __iomem *pmb_remap_caller(phys_addr_t phys, unsigned long size,
|
|
pgprot_t prot, void *caller);
|
|
int pmb_unmap(void __iomem *addr);
|
|
|
|
#else
|
|
|
|
static inline int
|
|
pmb_bolt_mapping(unsigned long virt, phys_addr_t phys,
|
|
unsigned long size, pgprot_t prot)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline void __iomem *
|
|
pmb_remap_caller(phys_addr_t phys, unsigned long size,
|
|
pgprot_t prot, void *caller)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int pmb_unmap(void __iomem *addr)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#define pmb_init(addr) do { } while (0)
|
|
|
|
#ifdef CONFIG_29BIT
|
|
#define __in_29bit_mode() (1)
|
|
#else
|
|
#define __in_29bit_mode() (0)
|
|
#endif
|
|
|
|
#endif /* CONFIG_PMB */
|
|
|
|
static inline void __iomem *
|
|
pmb_remap(phys_addr_t phys, unsigned long size, pgprot_t prot)
|
|
{
|
|
return pmb_remap_caller(phys, size, prot, __builtin_return_address(0));
|
|
}
|
|
|
|
#endif /* __ASSEMBLER__ */
|
|
|
|
#endif /* __MMU_H */
|