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Commit 58233ccf authored by Linus Torvalds's avatar Linus Torvalds
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Pull m68k updates from Geert Uytterhoeven:

 - pagetable layout rewrite, to facilitate global READ_ONCE() rework

 - Zorro (Amiga) and DIO (HP 9000/300) bus cleanups

 - defconfig updates

 - minor cleanups and fixes

* tag 'm68k-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (23 commits)
  m68k: defconfig: Update defconfigs for v5.6-rc4
  zorro: Replace zero-length array with flexible-array member
  m68k: Switch to asm-generic/hardirq.h
  fbdev: c2p: Use BUILD_BUG() instead of custom solution
  dio: Remove unused dio_dev_driver()
  dio: Fix dio_bus_match() kerneldoc
  dio: Make dio_match_device() static
  zorro: Move zorro_bus_type to bus-private header file
  zorro: Remove unused zorro_dev_driver()
  zorro: Use zorro_match_device() helper in zorro_bus_match()
  zorro: Fix zorro_bus_match() kerneldoc
  zorro: Make zorro_match_device() static
  m68k: Fix Kconfig indentation
  m68k: mm: Change ColdFire pgtable_t
  m68k: mm: Fully initialize the page-table allocator
  m68k: mm: Extend table allocator for multiple sizes
  m68k: mm: Use table allocator for pgtables
  m68k: mm: Improve kernel_page_table()
  m68k: mm: Restructure Motorola MMU page-table layout
  m68k: mm: Move the pointer table allocator to motorola.c
  ...
parents 458ef2a2 86cded5f
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with 87 additions and 170 deletions
......@@ -173,7 +173,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -369,6 +368,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -613,9 +613,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -169,7 +169,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -348,6 +347,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -569,9 +569,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -176,7 +176,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -364,6 +363,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -591,9 +591,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -166,7 +166,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -346,6 +345,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -562,9 +562,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -168,7 +168,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -347,6 +346,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -571,9 +571,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -167,7 +167,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -363,6 +362,7 @@ CONFIG_INPUT_ADBHID=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -593,9 +593,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -187,7 +187,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -407,6 +406,7 @@ CONFIG_INPUT_ADBHID=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -679,9 +679,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -165,7 +165,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -345,6 +344,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -561,9 +561,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -166,7 +166,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -346,6 +345,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -562,9 +562,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -167,7 +167,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -353,6 +352,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -580,9 +580,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -163,7 +163,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -343,6 +342,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -564,9 +564,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -163,7 +163,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
......@@ -343,6 +342,7 @@ CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_WIREGUARD=m
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_BROADCAST=m
......@@ -563,9 +563,6 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_LIB_BLAKE2S=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
......
......@@ -8,6 +8,7 @@ generic-y += emergency-restart.h
generic-y += exec.h
generic-y += extable.h
generic-y += futex.h
generic-y += hardirq.h
generic-y += hw_irq.h
generic-y += irq_regs.h
generic-y += irq_work.h
......
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __M68K_HARDIRQ_H
#define __M68K_HARDIRQ_H
#include <linux/threads.h>
#include <linux/cache.h>
#include <asm/irq.h>
#ifdef CONFIG_MMU
static inline void ack_bad_irq(unsigned int irq)
{
pr_crit("unexpected IRQ trap at vector %02x\n", irq);
}
/* entry.S is sensitive to the offsets of these fields */
typedef struct {
unsigned int __softirq_pending;
} ____cacheline_aligned irq_cpustat_t;
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
#else
#include <asm-generic/hardirq.h>
#endif /* !CONFIG_MMU */
#endif
......@@ -28,21 +28,22 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
return (pmd_t *) pgd;
}
#define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
(unsigned long)(page_address(page)))
#define pmd_populate(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte))
#define pmd_populate_kernel(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte))
#define pmd_populate_kernel pmd_populate
#define pmd_pgtable(pmd) pmd_page(pmd)
#define pmd_pgtable(pmd) pfn_to_virt(pmd_val(pmd) >> PAGE_SHIFT)
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
unsigned long address)
{
struct page *page = virt_to_page(pgtable);
pgtable_pte_page_dtor(page);
__free_page(page);
}
static inline struct page *pte_alloc_one(struct mm_struct *mm)
static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
{
struct page *page = alloc_pages(GFP_DMA, 0);
pte_t *pte;
......@@ -54,20 +55,16 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
return NULL;
}
pte = kmap(page);
if (pte) {
pte = page_address(page);
clear_page(pte);
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
}
kunmap(page);
return page;
return pte;
}
static inline void pte_free(struct mm_struct *mm, struct page *page)
static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
{
struct page *page = virt_to_page(pgtable);
pgtable_pte_page_dtor(page);
__free_page(page);
}
......@@ -90,7 +87,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN);
if (!new_pgd)
return NULL;
memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE);
memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t));
memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT);
return new_pgd;
}
......
......@@ -5,93 +5,71 @@
#include <asm/tlb.h>
#include <asm/tlbflush.h>
extern pmd_t *get_pointer_table(void);
extern int free_pointer_table(pmd_t *);
extern void mmu_page_ctor(void *page);
extern void mmu_page_dtor(void *page);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
{
pte_t *pte;
enum m68k_table_types {
TABLE_PGD = 0,
TABLE_PMD = 0, /* same size as PGD */
TABLE_PTE = 1,
};
pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
if (pte) {
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
}
extern void init_pointer_table(void *table, int type);
extern void *get_pointer_table(int type);
extern int free_pointer_table(void *table, int type);
return pte;
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
{
return get_pointer_table(TABLE_PTE);
}
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
cache_page(pte);
free_page((unsigned long) pte);
free_pointer_table(pte, TABLE_PTE);
}
static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
{
struct page *page;
pte_t *pte;
page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
if(!page)
return NULL;
if (!pgtable_pte_page_ctor(page)) {
__free_page(page);
return NULL;
}
pte = kmap(page);
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
kunmap(page);
return page;
return get_pointer_table(TABLE_PTE);
}
static inline void pte_free(struct mm_struct *mm, pgtable_t page)
static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
{
pgtable_pte_page_dtor(page);
cache_page(kmap(page));
kunmap(page);
__free_page(page);
free_pointer_table(pgtable, TABLE_PTE);
}
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
unsigned long address)
{
pgtable_pte_page_dtor(page);
cache_page(kmap(page));
kunmap(page);
__free_page(page);
free_pointer_table(pgtable, TABLE_PTE);
}
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
return get_pointer_table();
return get_pointer_table(TABLE_PMD);
}
static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
return free_pointer_table(pmd);
return free_pointer_table(pmd, TABLE_PMD);
}
static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
unsigned long address)
{
return free_pointer_table(pmd);
return free_pointer_table(pmd, TABLE_PMD);
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
pmd_free(mm, (pmd_t *)pgd);
free_pointer_table(pgd, TABLE_PGD);
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return (pgd_t *)get_pointer_table();
return get_pointer_table(TABLE_PGD);
}
......@@ -102,9 +80,9 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
{
pmd_set(pmd, page_address(page));
pmd_set(pmd, page);
}
#define pmd_pgtable(pmd) pmd_page(pmd)
#define pmd_pgtable(pmd) ((pgtable_t)__pmd_page(pmd))
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
......
......@@ -23,7 +23,18 @@
#define _DESCTYPE_MASK 0x003
#define _CACHEMASK040 (~0x060)
#define _TABLE_MASK (0xfffffe00)
/*
* Currently set to the minimum alignment of table pointers (256 bytes).
* The hardware only uses the low 4 bits for state:
*
* 3 - Used
* 2 - Write Protected
* 0,1 - Descriptor Type
*
* and has the rest of the bits reserved.
*/
#define _TABLE_MASK (0xffffff00)
#define _PAGE_TABLE (_PAGE_SHORT)
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_NOCACHE)
......@@ -108,13 +119,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
static inline void pmd_set(pmd_t *pmdp, pte_t *ptep)
{
unsigned long ptbl = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED;
unsigned long *ptr = pmdp->pmd;
short i = 16;
while (--i >= 0) {
*ptr++ = ptbl;
ptbl += (sizeof(pte_t)*PTRS_PER_PTE/16);
}
pmd_val(*pmdp) = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED;
}
static inline void pud_set(pud_t *pudp, pmd_t *pmdp)
......@@ -138,13 +143,14 @@ static inline void pud_set(pud_t *pudp, pmd_t *pmdp)
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_bad(pmd) ((pmd_val(pmd) & _DESCTYPE_MASK) != _PAGE_TABLE)
#define pmd_present(pmd) (pmd_val(pmd) & _PAGE_TABLE)
#define pmd_clear(pmdp) ({ \
unsigned long *__ptr = pmdp->pmd; \
short __i = 16; \
while (--__i >= 0) \
*__ptr++ = 0; \
})
#define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd)))
#define pmd_clear(pmdp) ({ pmd_val(*pmdp) = 0; })
/*
* m68k does not have huge pages (020/030 actually could), but generic code
* expects pmd_page() to exists, only to then DCE it all. Provide a dummy to
* make the compiler happy.
*/
#define pmd_page(pmd) NULL
#define pud_none(pud) (!pud_val(pud))
......
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