mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 14:20:52 +07:00
089b43f973
pmb_bolt_mapping() is undefined on 29-bit builds, so provide a stub. This fixes up the NUMA build on platforms lacking PMB support. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
107 lines
2.1 KiB
C
107 lines
2.1 KiB
C
#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 __ASSEMBLY__
|
|
#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 /* __ASSEMBLY__ */
|
|
|
|
#endif /* __MMU_H */
|